Arash Lashkari
Structural Designer, EIT
Modern life is almost wholly dependent on engineering. Engineering means creation. It is everywhere and it is always
changing, and it is this in particular which attracts me to structural engineering. In this field I can combine my
knowledge and skills in physics and maths, two subjects which particularly interest me, and also work in an area
which is both diverse and exciting.
I am professional, capable, and motivated with over 8 years' experience in design of various types of structures
including mid-rise and high-rise residential, commercial, hospital, small bridge, school and industrial structures.
ABOUT PORTFOLIO
RESUME
ANALYSIS
CONTACT
PROJECT INTRODUCTION
DESIGN & CALCULATION
RESUMEProfessional Profile
• 8 years’ experience with proven competency in analysis and design of steel and concrete structures of residential,
commercial, schools, hospital and industrial buildings including underground structures
• Met the academic requirements for P.Eng licensure
• Successfully designed curved structure of commercial building totally more than 500,000 square ft. including slab
and foundation
• Extensive experience in preparing specifications, technical reports, and structural drawings
• Seismic/earthquake designed of reinforced concrete and steel structures
• Knowledgeable in Canadian standards (CSA, NBCC), American codes (ACI, AISC, ASCE, IBC) and Ontario
Building Code (OBC)
• Technical expert with ETABS, SAFE, SAP2000 and AutoCAD
• Proven capacity to collaborate with cross-functional disciplines, such as architectural, geotechnical, mechanical
and electrical engineers
• Excellent time management, multi-tasking, decision-making, strong Interpersonal skills and team-player
MAIN RESPONSIBILITIES
• Analyzed and designed various types of buildings and structures including steel, reinforced concrete using ETABS and SAFE
• Performed seismic analysis and earthquake engineering design for all structures
• Analyzed and designed commercial, residential, governmental buildings including steel and
reinforced structures
• Liaised with other designers and construction contractors to agree on safe designs and standards
compliances
• Prepared design calculations, drawings, specifications and structural drawings using AutoCAD
• Led teams of Civil, Architectural, Mechanical and Electrical engineers and efficiently delivered the
projects in accordance with agreed timeline
• Prepared structural drawings, document specifications based on appropriate engineering criteria, and
technical manuals
PROFESSIONAL EXPERIENCE
Structural Designer 2016 – Present
Can Consulting Engineering Company, Toronto, Canada
Structural Engineer 2015 – 2016
Freelance
Structural Engineer 2012 – 2015
Beton Azma Engineering Company
Structural Engineer 2010 - 2012
Paymoun Consulting Engineering
Structural Engineer 2008 - 2010
Organization of Renovation, Development & Equipping schools, Ministry of Education
Structural Engineer 2007 - 2008
Beton Payam Hormoz
ACADEMIC QUALIFICATIONS
Master’s in Structural Engineering, TMU 2007
• Thesis: The Effect of Opening on Seismic Behavior of Composite Shear Walls
Bachelor’s in Civil Engineering, Azad University 2004
Canadian Equivalency, As Assessed by World Education Service, WES
Professional Affiliations
• Professional Engineers Ontario, Engineer in Training 2016 to present
• Iranian Construction Engineers Organization, Professional membership 2009 to present
• Iranian Concrete Institute, Professional membership 2013 to present
• Engineers Australia, Engineer in Training 2014
Licenses
• Engineering License, Ministry of Road & Urban Development, Iran 2009 to present
• Engineering Office, Ministry of Road & Urban Development, Iran 2011 to 2015
PROJECT LOCATION
Project is located in the city of Toronto, Ontario,
Canada.
City of Toronto has different region and this
Structure is located in North York
Toronto
This is a one story industrial steel
structure
The structure area in total is 1450
square feet with 5.5 m height.
Building
Design Approach
Structure was designed by
SAP200 software based on
Canadian standards including
Canadian National Building Code
(NBC), Ontario Building Code (OBC)
and American Code (AISC)
Industrial Structure
Project Introduction
DESIGN LOADS
Gravity Loads are
included dead and live
loads
Gravity Loads
Lateral Loads is
included wind load
Lateral Loads
Snow, ice or rain
loads
Snow Load
The design load is the maximum amount of something a structure is designed to handle or the maximum amount of
something that the system can produce
Standards
• Specification for Structural steel buildings, AISC360-10
• National Building Code of Canada, NBCC 2010
• Ontario Building Code, OBC 2012
Software
• CSI SAP2000 (for beams and columns)
• CSI SAFE (for foundation)
GRAVITY LOADS
Dead Load: 0.5 kPa
Live Load: 1 kPa
• The dead load includes loads that are relatively
constant over time, including the weight of the
structure itself, and immovable fixtures. Dead loads
are permanent or static loads.
• Live Loads were extracted from Ontario building Code
(OBC) and National Building Code (NBCC 2010)
SNOW LOAD
Location: North York, Toronto, ON
𝛼 ≈ 9.1°
Important factor, I𝑠 = 1.15
1-in-50-year ground snow load, 𝑆𝑠 = 1.2
Basic roof snow load factor, 𝐶𝑏 = 0.8
Wind exposure factor, 𝐶𝑤 = 1
Slope factor, 𝐶𝑠 = 1
shape factor, 𝐶𝑎 = 1
1-in-50-year associated rain load, 𝑆𝑟 = 0.4
𝑆 = 𝐼𝑠 𝑆𝑠 𝐶𝑏𝐶𝑊𝐶𝑠𝐶𝑎 + 𝑆𝑟
Case I
𝑺 = 𝟏. 𝟓𝟔 𝒌𝑷𝒂
WIND LOAD (OBC, NBCC)
𝑝 = 𝐼𝑤𝑞𝐶𝑒𝐶𝑔𝐶𝑝
Location: Toronto (North York)
Open Terrain
Important factor, I𝑠 = 1.15
𝑞50 = 0.44 𝑘𝑃𝑎
𝛼 ≈ 9.1°
ℎ = 6.0𝑚
𝐶𝑒 = ℎ/10 0.2 = 0.9
Category 1: 𝐶𝑝𝑖 = −0.15 𝑡𝑜 0Side Load Case A Load Case B
𝐶𝑝𝐶𝑔 𝑝 𝑘𝑃𝑎 𝐶𝑝𝐶𝑔 𝑝 𝑘𝑃𝑎
1 0.82 0.37 -0.85 -0.39
1E 1.25 0.57 -0.9 -0.41
2 -1.3 -0.59 -1.3 -0.59
2E -2 -0.91 -2.0 -0.91
3 -0.75 -0.34 -0.7 -0.32
3E -1.08 -0.49 -1.0 -0.46
4 -0.62 -0.28 -0.85 -0.39
4E -0.91 -0.42 -0.9 -0.41
5 N/A N/A 0.75 0.34
5E N/A N/A 1.15 0.53
6 N/A N/A -0.55 -0.25
6E N/A N/A -0.8 -0.36
External Wind Pressure
Internal Wind Pressure
𝐶𝑔𝑖 = 2
𝐶𝑝𝑖 = −0.15 𝑡𝑜 0
𝑝𝑖 = 𝐼𝑤𝑞𝐶𝑒𝐶𝑔𝑖𝐶𝑝𝑖
𝑝𝑖 = −0.14𝑘𝑃𝑎 𝑡𝑜 0𝑘𝑃𝑎
DEFINITIONS
• References: • Ontario Building Code, OBC• National Building Code of Canada ,NBCC 2010• Handbook of Steel Construction, CISC• Specification for Structural Steel Buildings, ANSI/AISC 360-10• Steel Construction Manual, AISC
Material Properties
Steel A572 Gr50
𝐹𝑦 = 350 𝑀𝑃𝑎
𝐹𝑢 = 450 𝑀𝑃𝑎
𝐸𝑠 = 200,000 𝑀𝑃𝑎
𝜗 = 0.3
.
Section Properties Load Patterns
.Web-tapered members I-shaped
beams and columns
Case Load Type
D Dead
L Live
S Snow
W1 Wind
W2 Wind
W3 Wind
W4 Wind
FRAME DESIGN
Frame design using web-tapered
members
EE1A B EE E1 AB
CONNECTION DETAILS
BRACING
ROOF FRAMING
FOUNDATION
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