SEAONC Next Generation Performance-Base Guidelines

8/14/2019 SEAONC Next Generation Performance-Base Guidelines

1/12- 1 -

Presidents Message

VOL. LXII, NO. 4 FOUNDED 1930 April 2007

575 MARKET STREET SUITE 2125 SAN FRANCISCO, CA 94105-2870 415/974-5147 WWW.SEAONC.ORG [email protected]

April 3rd Degenkolb Forum Monthly Meeting

Meeting Notice

SEAONC South Bay MeetingTue. April 24, 2007

Michaels at Shoreline2960 N. Shoreline Blvd. Mnt. View

Registration Deadline: 12:00 p.m. April 19th(Details on page 2, reg. form on back of news)

Continued on page 2

SEAONC StrategicPlan vs. GodzillaDoug Hohbach, President

As an insert in this letter, you canfind the SEAONC Strategic Plan,initiated during the previous AndyMerovich administration and com-pleted several months ago. Accom-panying it are near term and longerterm implementation strategies.Many of the near term actions have

already been implemented, includingthe publication of CQA CommitteeWelding Procedures Specification

DEGENKOLB FORUMThe ATC-58 Project

Development of Next-GenerationPerformance-based Design Guidelines

Ronald O. Hamburger, SE

Program Chair: Hamid Fatehi

Continued on page 2

Modern concepts of performance-based earthquake engineeringoriginated in the mid-1990s, with theATC-33 project and development ofthe seismic rehabilitation guidelinesthat would eventually be publishedas the ASCE 41 standard. Even beforethe ATC-33 project initiated, Califor-nia engineers had been practicingrudimentary approaches to perfor-mance-based design, attempting

to assist clients by identifying thelikely performance of buildings, inthe form of probable maximum loss(PML) and risks to life safety, anddesigning some buildings with an in-tent that they could withstand strongearthquakes with limited damage.However, the ATC-33 concepts ofquantified performance levels (Im-mediate Occupancy, Life Safety, Col-lapse Prevention) tied to quantifiedground motion exceedance probabili-ties, introduced both a new paradigmand new excitement into earthquake

engineering. Following the North-ridge earthquake, SEAOC respondedwith its Vision 2000 project, popular-izing the concepts of performance-based design and calling for thedevelopment of performance-baseddesign procedures applicable notonly to the evaluation and upgrade ofexisting buildings but also the designof new buildings.

Ten years after publication of the Vi-sion 2000, FEMA-273/274 and ATC-40

documents, the success of perfor-mance-based design in engineeringpractice is undeniable. Developers ofstructural engineering software havefolded the performance-based designtechnology into their products; theState of California has formally ac-cepted the use of these proceduresas acceptable means of designingupgrades for schools, hospitals andstate-owned buildings and engi-neers around the United States havebecome familiar with nonlinear andperformance-based design concepts.Some of the tallest buildings beingconstructed today are designed usingthe procedures contained in ASCE41and similar performance-based de-sign criteria.

As successful as the present genera-tion of performance-based designcriteria have become, they haveseveral important limitations. First,

Presidents Column................. 1Degenkolb Forum................... 1YMF Spotlight.......................... 3South Bay Meeting................. 2SEAOC News............................ 4Rebuilding Together............... 6Business Forum........................ 7Seismic-Safety Advocates..... 7Sustainable Design.................. 8Job Forum................................... 9

SEAONC Degenkolb ForumTuesday, April 3, 2007

The City Club155 Sansome St. 10th Floor

Registration Deadline: 12:00 p.m. March29th (Details to the right, reg. form on back

of news)

In the April News:SEAONC Business ForumThere is no Business Forum for the month ofApril. Business Forum Chair Jim Mogannamasks that Members with suggestions abouttopics or possibls speakers, contact him [email protected].


2/12- 2 -

Continued from page 1

Centennial Contribution

A Message from the President

document, the issuing of regularpress releases, the installation of thelong awaited web site calendar, theappointment of a newsletter editor(Grace Kang) and an improved andbetter coordinated with SEAOC, Ex-

cellence in Engineering competition.Also underway or almost complete isa Field Act White Paper and a YMFdeveloped slide show on structuralengineering. Also a sub-committeeto the Existing Buildings Committeehas been formed to develop a build-ing rating system for earthquakeperformance.

In case you were wondering,Godzilla is a symbol for the inertiaa successful organization such as

SEAONC can have. Implementationof a strategic plan requires counter-punching that inertia by taking theinitiative to improve. A yearly revisit-ing of the plan is anticipated.

The Board welcomes your input, par-ticularly on this initial version.

Degenkolb Forum Continued from page 1

there is no direct tie between the dis-crete performance levels and actuallosses that may be incurred, makingit difficult for owners and other deci-sion-makers to choose appropriateperformance goals for projects. Per-haps more important, there is no wayto judge the reliability of buildingsdesigned to these procedures andno one knows whether their designswill be able to deliver the promisedperformance.

The Applied Technology Councilis presently engaged in develop-ing next-generation procedures thataddress these issues. These next-generation procedures incorporatestructural reliability approaches toexpress performance in terms of theprobability of incurring specific dol-lar, downtime and casualty losses.The guidelines, presently beinggenerated by the project team enableevaluation of existing buildings,design of new buildings or existingbuilding upgrades, and developmentof PML, among other applications.Preliminary guidelines are presently

Note that the start time of theMonthly Dinner Meetings in SanFrancisco has been moved up 15minutes to 6:15 - social reception be-gins at 5:30. In conjunction with themeetings being run more tightly, itis anticipated that dinner meetingswill end 1/2 hour earlier on aver-age. We appreciate your timeliness.Thank you.

Earlier DinnerMeetings

being made available for precaution-ary use by the profession.

Biography

Ronald O. Hamburger, SE, is a SeniorPrincipal with Simpson Gumpertz& Heger Inc. in San Francisco. Apast-President of SEAONC, SEAOC

and NCSEA, and past Board Mem-ber and Vice President of EERI, Mr.Hamburger has been an internationalleader in the development of per-formance-based design criteria andprocedures. He was a member of theVision 2000 committee, a key memberof the ATC-33 and ATC-40 projectteams, project director for the FEMA/SAC Steel project and since, 1997, hasbeen the Chair of the Scientific Advi-sory Committee of the Pacific Earth-quake Engineering Research Cen-ter. Recently, Mr. Hamburger was

appointed to the NEHRP AdvisoryCommittee on Earthquake HazardReduction that advises the NEHRPagencies on national earthquake poli-cy. He is a past chair of the SEAONCSeismology and Existing BuildingsCommittees and presently chairs theBuilding Seismic Safety CouncilsProvision Update Committee. Since2002, he has served as project direc-tor for the ATC-58 project to developnext-generation performance-basedseismic design criteria.

South Bay Meeting April 24th

APRIL 24TH, 2007 SOUTH

BAY DINNER MEETING

Evolution of United States

Building Code Ground Motion

Criteria

By Charles A. Kircher, Ph.D., P.EPat Chow, South Bay Program Chair

As California looks to adopt the2007 International Building Codein the very near future, come to theApril South Bay Dinner Meetingto hear Charles A. Kircher presentan overview of the ground motioncriteria over the last 25 years, and toglimpse into the IBC future as ASCE7-05 replaces the UBC as the primarysource of seismic design require-

ments for new buildings.

The seismic code ground motion cri-teria have improved significantly inthe last 20 years. ASCE 7-05 groundmotion criteria represents the bestscience and as the consistence crite-ria for the United States model build-ing codes. The ASCE 7-05 incorporat-ed spectral contour maps developed(and will be updated) by the UnitedStates Geological Survey (USGS).

Tax season will be over and thisdinner meeting will provide nour-ishment for the taxed out body andmind. We look forward to see youat Michaels at Shoreline, 2960 NorthShoreline Boulevard, MountainView.

New Members to SEAONC willnow receive their first dinner meet-ing free*. Please pass the wordon to anyone considering joiningSEAONC. Please help us engageour new members at their first din-ner meetings!

THANKS,The Membership Committee(*The dinner must be withinthe first two months of joiningSEAONC)

New Member Perk


3/12- 3 -

marathon. Can you elaborate on yourinterests outside of engineering?Lucie: I did just complete my firstmarathon last year Ive only beenrunning for a couple years but itscompletely addictive. Im embarrass-ingly slow but I figure that means Ican only get better! And I love topaint when I can find the time; I just

had my first show this past year atmy favorite coffee shop. Running andpainting both help keep me sane.

YMF: Any closing thoughts or com-ments?Lucie: Im really looking forward tothis Aprils RT project Im hop-ing a lot of people make it out thisyear! Were really gearing up rightnow, and the big reward for me is tosee it all come together on Rebuild-ing Weekend. People can find moreinformation about RTSF at www.

rebuildingtogethersf.org (and clickon the Summer 2006 newsletterto see before and after pictures ofSEAONCs featured project fromlast year). If anyone would like tovolunteer on Saturday April 21st or28th, or donate to RT through SEA-ONCs team, they can contact me [email protected].

YMF Spotlight is a monthly article, high-lighting some of the talented young per-sonalities that characterize the SEAONCcommunity. If you would like to nomi-nate a young engineer with an interestingperspective to share, please email KarlTelleen [email protected].

YMF Spotlight: Lucie Fougner

By Becky Claassen

In this edition of the YMF SpotlightSeries, Lucie Fougner shares abouther life as a young engineer. Lucie isa Design Engineer with DegenkolbEngineers in Oakland, and has beenwith them since 2001 after graduat-

ing from Cornell University with aBS in Civil Engineering. She alsoearned her MS in Structural Engi-neering from UC Berkeley in 2004.Something that sets Lucie apart fromthe average young engineer is herextensive involvement with the phil-anthropic organization RebuildingTogether San Francisco. Projects thatthe SEAONC team has managed inprevious years include renovationsof the Community Works facility,Gateway Charter School, and Dolo-res Street Community Center. As

the co-chair of the SEAONC PublicAffairs Committee, Lucie has helpedSEAONC become more involved inthis charitable organization.

YMF: Can you tell us somethingabout your experience working atDegenkolb and some of the projectsyou are working on now?Lucie: Most recently, Ive been work-ing on a nonlinear dynamic analysisof a steel moment frame hospitaltower built in the 1960s. Weredoing a detailed nonlinear analysisusing Perform-3D, and proposing analternative analysis criteria docu-ment. Were optimistic about show-ing that the level of retrofit requiredis minimal to achieve a Life Safetyobjective. Ive also been working onthe retrofit of the Bancroft Library atCal, which is a lot of fun because itmeans that I get to be back on cam-pus. We are adding concrete shearwalls, and strengthening the slabs

and beams for heavy library stackloading by adding topping slabs toact compositely with the existingsystem, rather than by strengthen-ing with steel framing below. Forboth of these jobs, advanced analy-sis is allowing us to get the most outof our existing buildings.

YMF: What involvement have youhad with SEAONC in the past? Anyplans for staying involved in thefuture?Lucie: This year, Shane Gross andI are the chairs of SEAONCs PublicAffairs Committee. Previously, Ivebeen involved with Continuing Edand Public Affairs, but I decidedto direct all my effort towards PAthis year. Our primary objectiveis to fundraise for and organizeSEAONCs volunteers involvementin Rebuilding Together Weekend.

Regardless of who chairs the PublicAffairs Committee next year, Iplan to stay involved in RebuildingWeekend. Its a great way to get to-gether with friends and colleaguesfrom different companies and worktowards a common goal.

YMF: Can you tell us a bit about theorganization Rebuilding Togetherand the service project currently be-ing organized for SEAONC?Lucie: Rebuilding Together SanFrancisco (RTSF) is a fantastic

nonprofit organization that startedin response to the Loma Prietaearthquake and provides free homerepair and renovation programs forlow-income, elderly and disabledSan Franciscans and for nonprofitand neighborhood facilities. Thelast weekend in April, RT volunteerspull together to complete projectsall over the city. RTSF has cometo depend on the SEAONC teambecause of the practical experience,special skills, and huge number ofenthusiastic volunteers we bring to

the job every year. This year, wellbe overhauling a community centerbuilding on Treasure Island thathouses a collaboration of 20 com-munity-based organizations thatserve formerly homeless low-incomefamilies. This building is used forcommunity meetings, a food pantry,and job training, and it needs ourhelp.

YMF: I understand you are quitea talented artist and recently ran a


4/12- 4 -

Presidents Message

By Norman ScheelSEAOC President

The new era of the InternationalBuilding Code (IBC) is upon us. The

California Building Standards com-mission has adopted the IBC as themodel code for California. Printingis scheduled to be complete on July 1,2007 and the projected date when thenew code will be in effect is January1, 2008.

In anticipation of this, SEAOC hasfunded the preparation of 3 volumesof Structural/Seismic Design Manu-als (SSDM). Volume I and VolumeII are currently available from ICCand Volume III will soon be in print.

The SEAOC Seminars Committeeis in the process of arranging forSSDM seminars to be presentedthrough the four regional associa-tions. These are expected to takeplace in the spring and fall of 2007.These seminars will be used to pres-ent examples and problems from thenew SSDMs.

On February 10, 2007, the newly re-constituted SEAOC Code Committeemet in Los Angeles. One of this com-mittees charges is to review codechange proposals and recommendapproval, disapproval or modifica-tion. These recommendations willthen be submitted to the appropriateNCSEA committees as well as theIBC Structural Committee. Volun-teers are needed at the local levelto serve on the regional associationcode committees to have a voice inthe code development process for allour members.

The state Code Committee also hasestablished an ad hoc Wind Subcom-mittee with the charge of proposinga code change to simplify the windprovisions in the 2006 IBC. The sub-committee met with the Washingtonand Oregon Structural EngineersAssociations Wind Committeesin Portland in late February to tryto form a consensus for this windcode proposal prior to moving on toNCSEA and IBC. The objective is tomake the wind provisions we wouldbe using very similar to those in the1997 UBC.

The SEAOC Long Range Plan hascalled for the publication of a Journalof the Structural Engineers Associa-tion of California. At this time thisjournal is conceptual only and isenvisioned to be under the directionof a 3 or 4 person Editorial Board.

The content of the Journal is notintended to be technical only but toalso contain a variety of other typesof articles as determined by the Edi-torial Board possibly such as opinionpieces, key moments in the historyof the profession, etc. The Journalcontent is not intended to competeor conflict with the Blue Book whichremains the province of the SEAOCSeismology Committee.

And, finally, if you have not metthe current SEAOC Board of Direc-

tors, please see the sidebar columnaccompanying this article that liststhe officers and board members. TheBoard meets four times per year withExecutive Committee conferencecalls as necessary between meetings.The Board is charged with makingpolicy decisions as to the directionsto be taken by the association andassure that communication andcoordination of program directionbetween the four regional associa-tions is maintained at a high level.This is one of the most dedicatedand effective group of individuals ithas been my pleasure to be affiliatedwith. Please feel free to contact Boardmembers in your area with yourquestions, concerns or comments.

SEAOC News

SEAOC Frequently Asked

Questions

How can I get the SEAOC discounton SEAOC-produced publicationssuch as the new Structural/Seismic

Design Manual series through theICC bookstore?

Call ICC toll free at (888) 422-7233,extension 3221. The person at thatextension knows the deal withSEAOC and will fulfill orders withthe member discount. Orders willbe taken from voice mail if she is notpersonally available.

How do I access the SEAOC web sitesecure section?

Enter ID SEAOC and passwordSEA32OC to access the informationThe code is case sensitive use capitaletters.

How do I get information on statelegislation that has been introduced

and its status?

Updated bill summaries are postedon the SEAOC web site at seaoc.orgon the home page. You can check thissite from time-to-time to get the latestupdate on legislation of interest to theprofession. If you wish to access a billitself, its status, as well as all Califor-nia statutes and general informationon the Legislature, go to web siteleginfo.ca.gov and click on the appro-priate button on the home page.

How do I go about obtaining theentry package for the 2007 SEAOCExcellence in Engineering AwardsProgram?

The full package is on the SEAOCweb site home page at seaoc.org andcan be printed out.

When and where is the StructuralEngineers World Congress 2007?

November 4 9, 2007, Bangalore, In-dia at Hotel Grand Ashok. Go to web

site sewc2007.org for full information.

Where can I get information on the2006 IBC, UMC, and UPC trainingsessions CALBO is offering?

The schedule and registration in-formation for the CALBO trainingsessions on the model code and stateamendments is posted on the SEAOCweb site at seaoc.org. This informa-tion can also be accessed throughthe web site at calbo.org/docu-ments/0650_0001.pdf. SEAOC mem-bers get the CALBO member rate.


5/12- 5 -

SEAOC February 10 Board

Meeting Summary of Actions

Major actions taken by the SEAOCBoard of Directors at the February 10meeting include: Reviewed and approved the De-

cember 31 financial statement. Received staff activity reportcovering period since last Boardmeeting. Reviewed NCSEA report of activ-ity. Discussed possible activities forthe College of Fellows to undertake. Acted to contribute $2500 to assistin sponsoring the 2007 StructuresCongress in Long Beach on May 17 19, 2007.* Appointed a working group to re-view the current SEAOC committee

structure and make recommenda-tions for the Board to consider.* Asked regional associations to rec-ommend a member to be appointedto the Seismic Safety CommissionSE seat being vacated by SEAONCmember Dan Shapiro.* Acted to approve a letter of com-mendation for all who have workedon the Blue Book over the years inrecognition of their contribution.* Reviewed status of Long RangePlan progress. Discussed ways and means of

best pursuing enhanced earthquakehazard mitigation procedures. Received progress reports fromcommittee chairs on their Plans ofWork.* In response to community collegesnow being able to opt to conductconstruction projects under eitherthe Field Act or the California Build-ing Code, SEAONC is in the processof putting together a recommenda-tion to be submitted to DSA and theSSC outlining an appropriate designstandard of care this will be sub-

mitted to this Board for review andapproval at the June meeting.* BOPELS, at SEAOC/SEAONCs re-quest, has agreed to release SE examproblems minus answers from 5years ago with SEAOC devising theanswers for presentation at SE examreview courses to enhance the valueof these courses to the attendees.* Regional associations were urgedto take the necessary steps to estab-lish procedures for awarding PDHs

Officers

President

Norm Scheel(SEAOCC)Norman Scheel Structural Engineer

President-Elect

Jon Kiland(SEAONC)DASSE Design

Secretary

Andy Merovich(SEAONC)A.T. Merovich & Associates

Treasurer

Bradley T. Lowe(SEAOSD)Hope Engineering, Inc.

Past President

Daniel J. Novak(SEAOSC)Tetra Tech, Inc.

Directors

James Amundson(SEAOSD Past President)Hope Engineering

Doug Hohbach(SEAONC President)Hohbach-Lewin, Inc.

Structural Engineers

Association of California

2006-2007 Board of Directors

(Executive Committee members

in bold italic type)

for educational events using theSEAOSC program as a model.* Regional associations were asked toreview Sections 5 and 6 of the SEAOCPolicies and Procedures Manual inaccordance with the review scheduleand bring their recommendations tothe June Board meeting.

The next meeting of the SEAOCBoard of Directors is June 9 at theSacramento Hyatt Regency.

Saif Hussain(SEAOSC President)Coffman Engineers, Inc.

Martin Johnson(SEAOSC Past President)ABS Consulting

Chris Kamp(SEAOSD President)SDSE

Bret Lizundia(SEAONC Vice President)Rutherford & Chekene

Brad Lowe(See Treasurer)

Matt Melcher(SEAOCC President)Lionakis Beaumont Design Group

Andy Merovich(See Secretary)

Brian Reil(SEAOCC Past President)Buehler & Buehler Structural Engi-neers

Fred Schott(SEAOSC President elect)Fred Schott & Associates

StaffLee AdlerExecutive DirectorSEAOC

Be sure to make your reservationsearly for the 2007 SEAOC Conven-tion. Please visit www.seaocc.org/2007convention for more infor-mation and to register.

SEAOC News


6/12- 6 -

Save the Date: May 1, 2007

Rebuilding Together is

THIS MONTH!

Save the date(s):Saturday, April 21st (prep day) andSaturday, April 28th (big workday)!!

Thank you to everyone who re-

sponded to our previous requestsfor contributions! We still needyour donations and now we needVOLUNTEERS! This is SEAONCssixteenth year of participation in thisannual charity event. RebuildingTogether is a nationwide, non-profitorganization that coordinates vol-unteers and sponsorship in an effortto renovate neighborhood facilitiesand repair the homes of low-income,disabled and elderly homeowners.This year we will be working on aTreasure Island community center

housing twenty community agencieshelping homeless and low-incomepeople get back on their feet. Thefacility is used for meetings and jobtraining and also houses a food pan-try. Rebuilding Together Contribu-tions are used to purchase tools andmaterials for projects.

Mark your calendars for Sat. April28th. Volunteers are needed!!! Weare sounding the call for all volun-teers, with or without any construc-tion experience. We are especially

looking for those with constructionexperience, including home projects,who are interested in helping us leada small construction team withinthe larger project. If you would likeadditional information or would liketo volunteer, please contact LucieFougner at [email protected] Shane Gross at [email protected] or call (510) 272-9040. Pleasemail tax-deductible donations, pay-able to Rebuilding Together, to:

Rebuilding Together

c/o Lucie FougnerDegenkolb Engineers300 Frank H. Ogawa Plaza, Suite 450Oakland, CA 94612

Thanks! Look forward to seeing youon April 28th!!

Pending Members Welcome New Members

SEAONC proudly announces the first annual Association Awards

Ceremony in celebration of the 2007 Excellence in Structural

Engineering Awards program.

This year the Association will celebrate 2007 Excellence in Structural Engi-neering Award recipients and their work at the May 1st, 2007 SEAONC Din-ner Meeting. Award recipients will be formally announced and invited tomake a brief presentation and overview of their Awarded project entry. Allare invited to this extraordinary event to celebrate and give recognition tothose in the SEAONC membership demonstrating excellence in their work.

Associate

Tracy Leung, SOHA EngineersDesign Engineer

Sylvie Petta, KPFF ConsultingEngineers, Project Engineer

Michael Cardellini, DASSE Design,Staff EngineerBill Wells, Peoples AssociatesStructural Engineers, AssistantEngineerJaney Chan, Peoples AssociatesStructural Engineers, AssistantEngineer

Life Member SE

Robert Okano, Peoples AssociatesStructural Engineers

Member

Linda Liang, Treadwell and Rollo,Inc., Senior Engineer

Timothy Lucido, Rutherford &Chekene, Staff Engineer, PE

Student

Amy Yip, Stanford University

Graduate Student

Madeline Cunanan, San FranciscoState Univ, Graduate Student

Associate

Townsend Brown, GFDS Engineer,Design Engineer

Joseph Rakow, Exponent FailureAnalysis Associates, Engineer

Mauricio Escobar, Hohbach-Lewin,Inc., Staff Engineer

Mollye Mikula, Holmes CulleyStructural Designer, /2nd year

Jessica Godinho, HinmanConsulting Engineers, Porject Engi-neer

Industry

Don Dolly, Foundation Constructors,

Inc, President

John Rainone, Sullivan Kreiss, IncEngineering, Team Leader

Student

Wai Hong Cheng, SF StateUniversity, Student

Hai Hua Lei, U C Berkeley,Student


7/12- 7 -

Seismic-Safety Advocates JoinForces to Aid San FranciscoOn February 24th, more than 150 engineers, architectsand graduate students joined forces to conduct a block-by-block survey of San Franciscos multi-unit residentialwood-frame buildings, including the so-called soft-storystructures located throughout the City that are potentially

at risk during earthquakes.

These volunteers, organized by the Earthquake Engineer-ing Research Institutes Northern California Chapter(EERI-NC) and the Structural Engineers Association ofNorthern California (SEAONC), collected data on struc-tures in downtown neighborhoods including the Mission,Haight-Ashbury, and Telegraph Hill. Their data will beused by City authorities to assess further the Citys vulner-able housing stock leading to mitigation strategies that willultimately reduce the seismic risks posed by these build-ings. Joining the volunteers from EERI-NC and SEAONCwere members of the San Francisco branches of the Ameri-can Institute of Architects (AIA), American Society of CivilEngineers (ASCE), and graduate students from UC Berke-

ley, San Francisco State and Stanford University.Soft-story buildings are those in which the first story issubstantially more flexible than the stories above, typicallydue to multiple openings for garage doors and entranceways. These structures perform poorly in earthquakes.In the 1994 Northridge Earthquake, 16 people were killedand 34,000 housing units were left uninhabitable by soft-story building collapses. Closer to home, in the 1989 LomaPrieta Earthquake, 2 lives were lost and 7,700 housingunits were rendered uninhabitable due to soft-stories. Inlight of this, it is perhaps not surprising that a 2006 studyby Kircher et al., prompted by the recent anniversary ofthe Great San Francisco Earthquake, concluded that soft-story wood buildings were among the most vulnerablebuilding types when estimating losses due to a repeat ofthe 1906 event.

Last year, Assembly Bill 304 was signed into law by Cali-fornia Governor Arnold Schwarzenegger, allowing localgovernments to identify soft-story buildings as potentiallyhazardous to life and to establish local standards to retrofitthem. Other California cities, such as Berkeley and Fre-mont, have surveyed their buildings but none has as largean inventory as San Francisco. The Citys Department ofBuilding Inspection (SFDBI) staff has studied key neigh-borhoods, but it would take them months, or even years, tocanvass the entire city.

This event provided a hands-on opportunity for seismic-safety advocates from varying backgrounds structural

and civil engineers, geologists, seismologists, architects,building officials and others to work together to performa great community service. Whats more, the exercise wasan excellent learning experience for future post-disastersurveys. According to Ray Lui, Manager of SFDBIs Struc-tural Safety and Emergency Planning Division, Collect-ing reliable data efficiently and systematically is far easierbefore the big quake than afterward. Plus it can give us achance to head off seismic hazards before they occur. Heshould know. Lui coordinated SEAONCs efforts for theStates Office of Emergency Service (OES) Safety Assess-ment Volunteers (SAV) in New Orleans following Hurri-cane Katrina.

February South Bay ProgramWrap-up

Construction of the New

Stanford Football Stadium

By Pat Chow, South Bay Program Chair

Co-presented By Tim Stitt, Vance Brown Builders & C.S.Hwang, County of Santa Clara

Mr. Stitt and Mr. Hwang presented interesting facts about thenew $100 Million Stanford Football Stadium to 45 SEAONCmembers and guests at the South Bay meeting. Mr. Stitt sharedmany photographs of the project, covering the period from theconclusion of the last football game the previous year to thecompletion of the stadium just before the first football game ofthe following year; a total of nine months!! Mr. Hwang furtherdescribed the structural systems and the positive environ-ments that made this fast paced project possible.

Sampling of the facts includes the following:- Convince all contractors and sub-contractors that the sched-ule can be met- Demolition was completed in one week, one week ahead ofschedule- The track around the stadium was left in place during con-struction for truck traffic- Parts of the stadium berm was conserved as historic; and tominimize excavation and disposition- Aluminum was salvaged for $180,000- First concrete was poured two weeks after start of construc-tion- Foundation for the bleacher was simple concrete piers 400pieces, 30 and 36 inch diameters, length ranging from 25 feetto 90 feet- Used fiberglass forms for the piers 60 piers per week

- Experienced a wet winter mud and more rain- MSE walls were used to stabilize the remaining berm quickand economical- 3-100 feet long tunnels were dug by a wine cave guy fromthe wine country- The Press Box exterior was constructed with window wash-ing equipment- Upper bleacher was design/build by a bleacher contractor- Press Box was designed by Middlebrook+Louie SMRF withlong tall columns- There is a 4 hour fire/area separation wall between the

bleacher and the Press Box this fire wall is an example ofcompromise and working together toward a common goal

between the Applicant, Fire Marshal, Architect, and PlanReviewer

- The original score board had to be relocated- The project was originally budgeted at $30 Million,upped to $45 Million from the first estimate, and com-pleted at $100 Million- Names of Donor of $1 Million or more are prominentlydisplaced in the luxury suites

The main themes that made this achievement possibleremain to be - working with good communications; hav-ing good team members; make and approve changes onsite; working with approved contractors and designers;and good participations from the governing agencies.


8/12- 8 -

2006-07 Committee Chairs

Business ForumJames Mogannam415/[email protected]

BylawsJ.E. Goudie925/399/5876

[email protected]

Construction Quality & AssuranceTim Hart510/[email protected]

Continuing Education CommitteeNatalie Tse

415/[email protected]

Disaster Emergency ServicesSteven Lew


Existing BuildingDavid Bonowitz


Legislative

David Wilson415/[email protected]

Membership CommitteeKevin [email protected]

Professional PracticesJeff Taner510/845-6600

[email protected]

ProgramHamid Fatehi


Program (South Bay)Patrick Chow


Public AffairsLucie [email protected]/272-9040Co-ChairShane [email protected]/272/9040

Seismology & Structural StandardsMark Moore415/[email protected]

Sustainable DesignAlan Kren

415/568-4433

[email protected]

Transportation Structures CommitteeMark Ketchum415/[email protected]

WebsiteDarrick Hom510/[email protected]

Younger Member ForumHeinz Kuo

415/[email protected] [email protected]

Sustainable Design: Some

Frequently Asked Questionsby Lindsey Maclise, Lisa Minakami,Townsend Brown, Sarah Vaughan, AlanKren, Sustainable Design CommitteeMembers

A colleague recently asked two ques-tions relating to sustainable design,

both prompted by projects he wasworking on. The first was What riskis there in using fly ash in concretedue to the heavy metals in fly ash?His client had heard that fly ash con-tained heavy metals and was worriedthat using it as a substitute for cementin concrete posed a health risk. Thesecond concerned using salvagedwood timbers and the affect fatiguehas on the strength and stiffness char-acteristics of the salvaged timbers.As one tenet of sustainable design isto recycle and reuse, both questionswere appropriate subjects for research

by the Sustainable Design Committee.What follows is what we learned.

Fly ashes contain minute amounts ofarsenic, chromium, lead, titanium andother heavy metals. The amount ofheavy metals contained in a particularfly ash varies on the type and sourceof the fly ash. There is concern onthe presence of these metals on thepossible impact to human healthwhen used in HVFA Concrete. Stud-ies on the possible toxicity of HVFAwere conducted at the University ofAachen, Germany, and by Zhang,Blanchette, and Malhotra at CANMET(Canadian Center for Mineral andEnergy Technology), Canada. Bothstudies show that when fly ash wasused in good quality concrete theamount of heavy metals that leachedfrom the concrete were either unde-tectable or well below the prescribedlimits for unsafe drinking water. Ingeneral, less than 1% of the heavymetals contained in the fly ash weredetected to leach out of the concrete.A 30% and 60% Fly ash mix were bothtested, with similar results. Basedupon the results from the testing thereis a relatively low risk of heavy metal

contamination to humans or the sur-rounding environment when fly ash isused in good quality HVFA concrete.

More detailed information is in thereference paper by Malhotra, V.M.,Mehta, P.K., High-Performance,High-Volume Fly Ash Concrete: Mate-rials, Mixture Proportioning, Proper-ties, Construction Practice, and CaseHistories; Supplementary CementingMaterials for Sustainable Develop-ment Inc., Ottawa, Canada, August2002, pp. 8-10.

Timber bridges, many of which areover 40 years old, comprise aboutone-third of the inventory of Class Ifreight railroads. In 1998, the Trans-portation Technology Center, a sub-sidiary of the Association of AmericanRailroads, teamed with Texas A&MUniversity to generate fatigue data foruse in assessing the performance andreliability of existing bridges underheavy axle loading. Cyclic tests wereperformed on 45 new solid sawnstringers. Test results indicated thatwhile horizontal shear was the mostcommon failure mode, beams failed atshear strengths higher than the allow-able values defined by the AREMA(The American Railway Engineeringand Maintenance of Way Association)Manual for Railway Engineering. Itwas also observed that cyclic load-ing caused the incremental growthof pre-existing checks, which eventu-ally led to horizontal shear failure. Abeam having several large checks at

mid-depth was found to be more del-eterious than one having numeroussmaller, evenly distributed checks.Those wishing more information aredirected to the reference paper atwww.arema.org/eseries/scriptcon-tent/custom/e_arema/library/2001_Conference_Proceedings/00020.pdf

Wood structures in general are subjectto decay, fatigue cracks, porosity, andother defects that can undermine thetimbers strength. A study to improvenon-destructive evaluation techniquesof salvaged timber was performed by

Washington State University, in col-laboration with USDA Forest ProductsLaboratory and the Federal HighwayAdministration. Effective methods ofaccessing the mechanical integrity oftimber using ultrasound inspection,radiography, and vibration analysiswere developed and improved upon.More information is in the referencepaper by Emerson, R.N., (1999) Non-destructive Testing of Large BridgeTimbers, Forest Products Society,Proceedings of the 11th InternationalSymposium on Nondestructive Test-ing of Wood, Madison Wisconsin,September 1998.

The Sustainable Design Commit-tee expects that structural engineershave questions regarding sustainabledesign. Feel free to ask any memberof the committee your question, oremail Erik Kneer, committee vice-chair, at [email protected]. Thecommittee will do its best to answerquestions as best it can. Refer to thecommittees webpage on the SEAONCwebsite for these questions, responses,and supporting references.


9/12- 9 -

Biggs Cardosa Associateshas immediateopenings in our San Jose, San Francisco andOakland, CA offices! Are you interestedin a long-term career with an exciting andgrowth-oriented firm? In San Jose, weare looking for three Senior Engineers orProject Managers (one with min. 10 yearsexperience in building design and Califor-nia SE required; and two with min. 10 yearsexperience in bridge design and California

CE required). In Oakland, we are lookingfor Project Engineers or Staff Engineers,and a Senior Engineer or Project Managerwith a min. 10 years experience in build-ing and/or bridge design (California CEis required, SE is preferred). Please emailyour resume to [email protected]. Find out more about our firm atwww.biggscardosa.com. EOE.

DASSE Design , recognized again byStructural Engineer Magazine as one ofthe best SE firms to work for, has open-ings in Oakland for talented Staff andProject Engineers interested in diverseand technically challenging buildingstructures. Our work includes new con-

struction and retrofit, in education, healthcare, civic and life sciences. Requirementsare BSCE (MSCE preferred), 2-10+ yearsrelevant design experience; DSA or OSHPDexperience a plus. PE or SE license requiredfor Project Engineers. Position requiresstrong technical and communication skills,with a desire to grow in a professionalenvironment. Email resume with cover let-ter to William Andrews, [email protected] Visit us at www.dasse.com.

Degenkolb Engineers is looking for tal-ented engineers to join our San Franciscoteam. As recognized leaders in seismicengineering, we offer a diverse, challeng-ing mix of projects on new and existing

structures. We offer an excellent salary andbenefits package. Currently, we are look-ing for engineers with a M.S. in StructuralEngineering with 0-3 years of experience.Experience in structural/seismic engineer-ing analysis and design of buildings isa plus. Please see our website at www.degenkolb.com. EOE. To apply, send anarrative letter about yourself with yourcurrent resume to [email protected] to Degenkolb Engineers, Attn: JamesMalley, 225 Bush Street, Suite 1000, SanFrancisco, California 94104.

DESIMONE Consulting Engineers, aleading national structural engineeringfirm with a staff of more than 160 em-

ployees, has immediate openings in ourgrowing San Francisco office for engineersat all levels, especially experienced ProjectManagers and Project Engineers. Presently,we are designing a diverse mix of interest-ing and technically challenging projects,including museums, resorts, and residen-tial projects, along with several high-rise

buildings ranging up to 75 stories. Idealcandidates should have strong technical,management and communications skills,with a PE license (preferred). We offer acompetitive benefits package, coupled witha dynamic work environment. Additionalopportunities are available in our NewYork, Miami, New Haven and Las Vegas

offices. Please send your resume via e-mailto [email protected].

Forell/Elsesser Engineers, IncAre you look-ing for that dream job that will allow you towork in a dynamic downtown San Franciscooffice with a collaborative, fun group ofengineers on some of the most challengingand exciting structural and seismic projectsin California and around the world? If so,

Forell/Elsesser Engineers, Inc. is eager tohear from you! Named in 2004 as one of thetop 15 Best Structural Engineering Firms toWork For in the United States by StructuralEngineer Magazine, Forell/Elsesser Engi-neers, Inc., is seeking talented engineers to

be members of our team. Join an excitingand thoughtful team in a dynamic workenvironment that actively encourages andsupports individual professional growththrough ongoing education, training, andmentoring. Our firm offers a competitivecompensation package that includes majormedical, dental, vision, life/disability in-surance, 401(k) match, profit sharing plan,incentive compensation plan and a flexiblespending account. Find out more about

Forell/Elsesser at www.forell.com Pleasecontact Mason Walters at (415) 837-0700 orsend resumes to Mason Walters, Forell/El-sesser Engineers, Inc., 160 Pine Street, 6thFloor, San Francisco, CA 94111 or [email protected]

FULCRUM STRUCTURAL ENGINEER-ING has an opening for a full-time projectengineer/manager to join our growingSOMA firm. Varied projects include chal-lenging custom residential, commercial,public buildings and historical retrofit andrestoration. Applicants must have 5-10 yearsof experience in structural detailing andpreparing construction drawings for build-ings, knowledge of CA/field observation and

excellent communication skills. Professionalengineering license preferred. Masters de-gree in Structural Engineering a plus.We are looking for someone who can runprojects from start to finish as a project man-ager or ready to step up to a project managerposition. Excellent salary and benefits pack-age. Email resumes to [email protected] or fax 415-543-0162

H. D. Rueb, Structural Engineer, a mediumsize firm located in Pleasant Hill, has beenproviding structural engineering services forthe past 35 years. We are currently seekinga self-motivated project engineer/managerwith 5 years minimum experience who islooking for growth opportunity working

on various building types. Applicants musthave CE license with SE and MS degreepreferred. Job requires independent personwith good communication skills to do projectmanagement and client interface. Applicantsmust be team players, work to meet deadlinesand have concrete, masonry, steel and wooddesign experience. We offer an extremelycompetitive salary and benefits package.Learn more about us, and the position, atour website at www.hdrse.com. Contact usat: 360 Civic Drive, Suite F, Pleasant Hill,CA 94523 or Fax to (925) 825-9561 or emailus at [email protected]

Jon Brody Structural Engineers is an awardwinning San Francisco firm with a reputationfor design creativity and a high level of professional service. We work on a wide varietyof new and retrofit project types, with a focuson the integration of structural requirements with architectural design objectivesCommitted engineers with strong designanalytical, and interpersonal skills and min2 years design experience in CA are encour

aged to apply for Structural Designer, ProjecEngineer and Project Management positionon our team. Please e-mail resume/coveletter to [email protected].

KPFF Consulting Engineers is seekingProject Engineers & Project Managers forfull time employment. Applicants must bemotivated and possess excellent written andverbal skills. KPFF offers our employees anenvironment that supports personal growtheducation and training, and the freedom topursue individual career goals. If you haveat least 5 years of design experience, a PElicense, an advanced degree in structuraengineering, and an interest in StructuraDesign, we want to hear from you. Send

cover letter and resume to KPFF 1160 BatterySt., Suite 300, SF, CA 94111. EOE

Lawder Engineering-Structural designer/engineer position available with Modesto

based structural engineering firm. Firmprovides design services for a wide varietyof projects including mid-rise buildingsMust have BS engineering degree, have goodtechnical and communication skills, and beconversant with AutoCAD, SAP 2000, ETABSSend resume to Lawder Engineering , PO Box3206, Modesto, CA 95353 or fax to (209) 5211581 or email to [email protected].

NISHKIAN MENNINGER SEEKS EXPERIENCED REGISTERED ENGINEER with 5

or more years experience in various typesof structures; office buildings, high-risesschools, multiple-tenant residential & othercommercial projects, garages and seismicrehab. Resume & salary requirements to1200 Folsom Street, San Francisco, CA 94103or e-mail: [email protected].

OLMM (www.olmm.com), an award-winning structural engineering firm, has immediate openings for SENIOR and PROJECTSTRUCTURAL ENGINEERS in its Oaklandoffice. The positions offer excellent opportunity for professional growth and advancement. You will take charge of diverse andchallenging projects in a motivating andcollaborative work environment. We are

seeking motivated individuals with PE orSE license and 3 to 10 years of experience instructural/seismic analysis and design omajor structures in wood, concrete, and steelWe offer a generous compensation packageincluding 401(k) plan with company matchprofit sharing plan, incentive compensation, and major medical, dental, vision, andlong-term disability insurance. Please emairesume to: [email protected].

PARADIGM Structural Engineers, Inc., Weare looking for talented Project ManagerSenior Project Engineers, Project Engineerand Staff Engineer level individuals tocome join our dynamic and creative team

Job Forum


10/12- 10 -

At PARADIGM, we work in a collaborativeenvironment which focuses on developingyou as a professional while producing someof the most innovative design solutions forour clients. Now is the time to take controlof your future and make a PARADIGMShift! Visit us at www.paradigmse.com andsee how your qualifications and talents canhelp you become a contributing member atPARADIGM. Send resume and cover letter

to [email protected] or fax Jenniferat (415) 362-8945.

RPSESeeking Resumes for Structural Engi-neers:Rinne & Peterson Structural Engineers(RPSE) seeks and executes diverse, challeng-ing projects. Are you customer-focused,detail-oriented, flexible, with great commu-nication skills? Want growth opportunity,flexible hours, competitive salary, great

benefits and superb working environment?Please send cover letter and resume to Hu-man Resources, via fax at 650.428.2861, ore-mail [email protected].

Rutherford & Chekene, internationallyrecognized as a leader in structural and

seismic engineering, has multiple career op-portunities in response to our considerable

backlog of prestigious projects. Positionsinvolving innovative structural design andanalysis are currently open to engineersand designers with the following levels ofexperience who want to become part of ourdynamic and collaborative team: - StructuralProject Manager/Engineer with 3+ years ofrelevant experience and strong analytical,detailing, and communication skills (pro-fessional registration highly desirable), and- Structural Designer with strong academic

background, demonstrated interest in theprofession, and willingness to learn (M.S.degree in structural engineering or B.S. de-gree from a 4-year architectural/structural

engineering program preferred). If you wishto apply for one of these positions or learnmore about them, please contact Peter Rev-elli by phone at 415/568-4400 or E-mail [email protected]. Also visit our website at www.ruthchek.com.

Structus Interested in working on diverse,challenging projects in a congenial environ-ment without office politics? Structus, asmall, award winning structural engineeringfirm in the San Francisco Financial Districtis looking for self-motivated professionalswith experience in structural design/analy-sis/PM. Projects range from mid-rise edu-cational/residential-mixed-use buildingsto water/waste water and transportationfacilities. Minimum Qualifications: 1 10yrs. experience for Engineers (MS requiredwith less than 5 yrs. experience); 10 20 yrs.experience for Project Managers. Fluencyin English is essential. We offer excellentcompensation/benefit package. E-mail re-sume to [email protected] or Fax to:415.399.8966, Attn: Don Chappell.

Tipping Mar + Associates seeks an ener-getic, creative individual to join the staff ofa dynamic, emerging structural engineeringfirm. If you have imagination in addition totechnical expertise, and would enjoy work-ing in early collaboration with architects andcontractors to provide exceptional seismic

and sustainable design, please send a resumeand cover letter to Tipping Mar + associ-ates, 1906 Shattuck Avenue, Berkeley, CA94704; fax to 510-549-1912; or e-mail [email protected].

Walker Parking The Project Engineer willtake a lead role in developing and preparingdocuments for project designs. Project En-

gineer responsibilities include performingstructural engineering work requiring useof conventional engineering practices, plans,investigations, surveys, and structures orequipment. The prospective candidate shallhave knowledge of concrete design and havethe ability to lead the assembly of contractdocuments. Experience in the design of post-tensioned concrete structures is desired.Computer skills (CADD included), writtenand oral communication skills are required.Must be able to work in a team environ-ment. Minimum acceptable requirements:qualified candidate shall be a registeredprofessional engineer (or have the ability to

become registered within one year), possessa BSCE degree, and have a minimum of 5

years of experience. Send resume to [email protected]

Watry Design, Inc. is looking for just theright individuals to join our highly skilledteam of architects, engineers and parkingconsultants. Are you interested in forgingnew territory? Our firm is doing just that .. . We currently have openings for entry tomid-level structural designers who wouldlike to work for clients such as Pixar, Stan-ford, BART, Kaiser, IKEA and Marriott.Email resumes to [email protected] fax 650.298.8151.

ZFA STRUCTURAL ENGINEERS hasan immediate opening in San Francisco

for a Design Engineer with 4 to 8 yearsexperience in structural design andanalysis. Join a team that is dedicated togrowth with unlimited opportunities formotivated individuals. Minimum quali-fications: B.S. degree in civil engineeringwith a structural major. Excellent salary,401K, semi-annual bonuses, vacation and

benefits package. Contact Principal; Dr.Ahmad Issa: [email protected] or 415-243-4091.

Job Forum

$150 for up to450 characters / spaces

$15 for each additional45 characters / spaces

All Job Forum ads willbe printed in the newsletter

and posted on theSEAONC web site.

JOB FORUMInsertion Fees

DISPLAY ADS

Full Page $900/mo.2/3 Page $600/mo.1/2 Page $480/mo.1/3 Page $360/mo.

1/4 Page $270/mo.1/6 Page $225/mo.

Inserts/Flyers1 sided $1000/mo.2 sided $1200/mo.

Rates are for finished camera-ready black and white ads orproofed picture files with em-bedded fonts. Full paymentis required at time of insertion

order. For advertising contract,size specifications, and specialrates for running an ad for multiplemonths, contact the SEAONC Of-fice at by e-mail at: [email protected] or phone at 415/974 -5147.


11/12- 11 -


12/12

upcom

ingevents

APR

3rd SEAONC Degenkolb ForumCity Club, San Francisco

4th SEAONC Spring SeminarPG&E Auditorium, San Francisco

24th SEAONC South Bay MeetingMichaels at Shoreline, Mnt. View

Get your newsletter

electronicallyThe SEAONC news is available electronically to all

members. When you choose the electronic option youhelp SEAONC save costs on printing and mailing.

Please contact the SEAONC office [email protected] with electronic subscription in the

subject line and your name, and contact info in the bodyof the email at any time to choose this option.

NAME

COMPANY

ADDRESS

CITY STATE ZIP

PHONE FAX

EMAILRSVP by Fax: 415/ 764-4915, e-mail: [email protected], Phone: 415/974-5147

Registratio

n

Cost - S.F. MeetingPre-Regisration Late Reg.

SEAONC/ACI o $39 o $44Junior Mbr. (29 & under) o $33 o $38Student o $15 o $15Non-Mbr o $44 o $49

San Francisco -April 3rd Meeting & South Bay- April 24th Meeting

Registration Deadines: Monthly Mtg: Noon, Thur. March 29th

& South Bay: Noon, Fri April 20th

Credit Card#:

Expiration date:

Signature:

Paying by check make payment to SEAONC.

Paying online (monthly meeting only) go to:http://www.seaonc.org/member/member_s/events/order_form.asp

Paying by credit card provide the following:(SEAONC Accepts VISA, MC, AMEX)

S.F. Program 4/03

Note: Payment is required by evening of the meeting.

Register early, seating is limited. No cancellations after deadlines listedabove. No-shows are still responsible for full attendance fee.

5:30 pmAssembly6:15 pm Dinner

7:15 pm ProgramCity Club

155 Sansome Street

10th Floor

San Francisco

Cost - South Bay MeetingPre-Regisration Late Reg.

SEAONC/ACI o $28 o $33Junior Mbr. (29 & under) o $20 o $25Student o $15 o $15Non-Mbr o $33 o $38

5:45 pmAssembly6:30 pm Dinner

7:30 pm Program

Michaels at Shoreline

2960 Shoreline Blvd.

Mnt. View

South Bay Program 4/24

Documents

SEAONC Next Generation Performance-Base Guidelines