E NEWS

Concrete NZ – Learned Society PO Box 4234, Marewa, Napier 4143, New Zealand T +64 (9) 536 5410 E learnedsociety@concretenz.org.nz www.concretesociety.org.nz

A U G U S T 2 0 1 9

FOUR FROM FOUR!Congratulations to Nicholas Brooke and Ken Elwood for the consistently excellent feedback they received for their C5 Guidelines seminar series.

The last of the four seminars was presented in Auckland in July. The series explored the revised Part C5 of the Engineering Assessment Guidelines which now provide a simpler and more comprehensive means of assessing existing concrete buildings common throughout New Zealand.

This final seminar was also recorded – with a view to offering it as a webinar and, similarly, all future seminars will be recorded. The availability of such webinars will aid the Society’s ability to deliver seminar content to members in regions beyond the main centres.

How best to make the webinars available is to be discussed at the next Council meeting. We will keep readers updated with developments.

The Society extends its deep appreciation to Nicholas and Ken – sterling stuff gentlemen!

REVISITING THE STRUT & TIE SEMINARS

The popular Strut & Tie seminars – last held in May 2014 – are being re-run but have received a major refresh with plenty of new content.

As was the case in 2014, the series of four seminars will again be presented by Des Bull and Rick Henry.

The Strut & Tie method of analysis and design is a unified approach that considers all load effects (M, N, V, T) simultaneously and has evolved as one of the most useful design methods for shear critical structures and the regions of concrete structures where complex interactions occur.

The method relies on a first-principles approach to explain how forces are transmitted through reinforced concrete and is particularly effective when trying to explain the complex actions occurring in diaphragms, deep beams, prestressed members, and members with penetrations.

The procedure also allows a consideration of the likely pattern of cracking and is particularly effective as an investigative tool when trying to explain post-earthquake observations. The procedure is detailed within NZS 3101 but until recently has not been widely taught to training structural engineers.

This seminar covers the basic theory of strut and tie modelling and how it can be used to design complex regions of concrete structures. It also explores concepts of establishing simple, reliable and practical strut and tie models for different types of concrete members.

FeesCNZ-LS members $360 (ex GST) per person

Non CNZ-LS members $460 (ex GST) per person (includes complimentary CNZ-LS membership until 30 June 2020)

RED BOOK IN FIJISome 60 Fijian delegates attended the CNZ – Learned Society’s Red Book Shear Walls Seminar held recently in Fiji.

This seminar was first presented in New Zealand in July last year and was then attended by Nathan Kirk – the President of the Fiji Institute of Engineers (FIE) – a regular visitor to our events. After the seminar he suggested it would be of great interest to engineers in Fiji.

So CNZ member Nicholas Brooke and colleague Tony Stuart went to Fiji to present the seminar. “There was a great turnout,” says Nic, “and we believe these island visits will become a regular occurrence in future. From the Learned Society’s perspective, it was very satisfying to be able to assist FIE, a relatively new organisation.”

Among other subjects, the seminar explores concepts of seismic design, methods of seismic analysis, structural analysis and design actions for the building, and design of coupled walls and coupling beams.

Co-presenter Tony Stuart at the Fiji Seminar.

S E MI N A R S E R I E S 2 0 1 9

WHY YOU & YOUR EMPLOYEES

SHOULD ATTEND THIS SEMINAR

The Strut &

Tie method of a

nalysis

and design is a unified approach that

considers all load effects (M

, N, V

, T)

simulta

neously and has evolved as

one of the m

ost useful d

esign methods

for shear c

ritical stru

ctures and the

regions of concrete stru

ctures where

complex interactio

ns occur.

The method re

lies on a first

-princip

les

approach to

explain how force

s are

transm

itted th

rough reinforce

d concre

te

and is partic

ularly effectiv

e when

trying to

explain the co

mplex actions

occurrin

g in diaphragms, d

eep beams,

prestresse

d members,

and members

with

penetratio

ns.

The procedure also allo

ws a co

nsideratio

n

of the lik

ely pattern of cr

acking and is

particularly

effective as a

n investig

ative

tool when try

ing to explain post-

earthquake observatio

ns. The procedure

is detailed with

in NZS 3101 but until

recently has n

ot been widely ta

ught to

training st

ructural engineers.

THIS SEMINAR W

ILL COVER

•Understandingthebasictheoryofstrutandtie

modellingandhowitca

nbeused

todesigncom

plex

regionsofco

ncretestr

ucture

s.

•Conce

ptsofestab

lishingsim

ple,reliab

leandpractical

strutandtiem

odelsfordifferen

ttypesofco

ncrete

memb

ers.

•Useofstrutandtiea

sanexplanato

rytoo

lto

understando

bservedp

erform

anceincludingfailures

inconcretestructure

s.

•Strutandtied

esigncomp

liantwithAp

pendixA

ofNZS3101.

•Exa

mplesoftheuseofstrutandtieforrea

ldesign

scenarios.

OTHER BENEFITS

•Comp

rehensivereso

urcethro

ughtheseminarnote

s

•Knowledgea

bleexperience

dspeake

rs

withgoodp

latformskills

•Theopportunitytonetwo

rkwithin

dustrypeers

WHO SHOULD ATTEND

Designers,Specifier

s,ConsultingEngineers,Build

ing

Certifi

ers,Lo

calAu

thorities,GraduateEngineersand

Contractors

.

IN

VESTMENT DETAILS

•CNZ-L

Smem

bers$360(GSTexc

lusive)perperso

n

•NonC

NZ-LSmem

bers$460(GSTexc

lusive)per

perso

n(includescom

plimentaryCNZ-LSmembersh

ip

until3

0June2020)

SEMIN

AR FEES INCLUDE

•Tea

andcoffeeonarriva

l

•Aftern

oontea

•Comp

rehensiveseminarnote

s

STRUT & TIE

Presented by Concr

eteNZ

–Lear

nedSociety

Concrete NZ – Learned Society PO Box 4234, Marewa, Napier 4143, New Zealand T +64 (9) 536 5410 E learnedsociety@concretenz.org.nz www.concretesociety.org.nz

VenuesWellington - Tuesday 10 September 2019 Engineering New Zealand, Level 6, NEC House, 40 Taranaki St

Auckland - Thursday 12 September 2019 Ellerslie Event Centre 80-100 Ascot Avenue (Ellerslie Racecourse)

North Harbour - Tuesday 17 September 2019 North Harbour Stadium Stadium Drive, Albany

Christchurch - Thursday 19 September 2019 Chateau on the Park, a DoubleTree by Hilton 189 Deans Avenue, Riccarton

SpeakersDes Bull is a Technical Director of Holmes Consulting Group LP. His duties involve the development of structural engineering services for the company, with an emphasis on concrete structures and the performance of concrete materials in a variety of environments and in-service conditions. He has served on the Technical Committees for NZS 3101: Concrete Structures and NZS 1170.5: Earthquake Loads.

Rick Henry is a senior lecturer in the Department of Civil and Environmental Engineering at the University of Auckland where he teaches the design of concrete structures, including strut and tie methods. His research interests include the seismic design and assessment of reinforced concrete structures and in particular precast concrete construction. He has served as a member of the technical committee for the NZ Concrete Structures Standard, NZS 3101:2006.

The Concrete NZ – Learned Society acknowledges the support of Holmes Consulting Group and the University of Auckland for making the series possible.

CLICK FOR REGISTRATION

For those who’ve not yet registered for October’s Concrete Conference in Dunedin, note that the registration portal on the Conference website is now ‘live’, accelerating the process considerably.

Early bird registration for the conference expires on September 20, and to secure attendance (and accommodation) delegates should register as soon as possible.

The Conference is being held in Dunedin for the first time and anecdotal evidence suggests many delegates will also use the opportunity to explore one of the country’s most majestic regions. Its legendary vineyards seem to hold a particular fascination for many…

A highlight of the extra mural activities will be the canoe race between students from a number of the country’s tertiary institutions. Students from the universities of Auckland and Canterbury have already entered, and others have expressed interest.

However ‘hot’ the quality of the vessels and the performance of the oarsmen, one thing is guaranteed: the crew of any canoe not remaining afloat will receive a chilly dipping.

Click here for more information or to register.

CALL FOR ABSTRACTS Next year sees the International Association for Bridge and Structural Engineering (IABSE) Congress convene in Christchurch (2 – 4 September), and organisers are calling for abstracts of proposed papers.

This Congress’s title is Resilient Technologies for Sustainable Infrastructures.

Founded in 1929 and based in Zurich, Switzerland, IABSE has members in 100 countries. It deals with all aspects of structural engineering: the science and art of planning, design, construction, operation, monitoring and inspection, maintenance, rehabilitation and preservation, demolition and dismantling of structures, taking into consideration technical, economic, environmental, aesthetic and social aspects.

Some 400-500 delegates are expected to attend.

Click here for more information.

fib APPA reminder to our members that fib now has a new smart phone app, and its website has been revamped.

Visit https://www.fib-international.org for more details.

GREAT TEACHER

The University of Canterbury’s Professor Alessandro Palermo has been recognised with a Teaching Award at the opening ceremony of the institution’s Teaching Month.

Alessandro is Professor in Structural Engineering and Materials and Director of Post-Graduate CNRE Research at the University’s Department of Civil and Natural Resources Engineering.

Teaching Awards recognise excellence in both undergraduate and graduate teaching and take into account colleagues’ recommendations, student feedback, and high-quality and sustained teaching practices.

Introduced in 2001, the Awards include $1,500 for each winner for teaching-related activities.