Ce 313-lecture-1(course Description )

‫بسم هللا الرحمن الرحيم‬

STEEL STRUCTURES (I) (CE 313) 1

LECTURE # 1

Course Description, Introduction By

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Course Outline 2

Syllabus Aims To introduce procedures for designing steel members and connections.  Syllabus (total 14 courses)  Introduction =>1  Steel properties =>1  Tension members =>2  Compression members (Columns) =>2  Bending Members (Beams) =>2  Beam-columns =>.2  Connections =>2 CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Text Book 3

Steel Design Fifth Edition by William T. Segui

Specification for Structural Steel Buildings(AISC) American Institute of Steel Construction, Inc.

Structural Steel Design 5th Edition by Jack C. McCormac, Stephen F. Csernak,P.E . CE 313 STEEL STRUCTURES (I)

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Outcome Assessment 4

 Two Midterm Exams  Home Work  Project  Final Exam

CE 313 STEEL STRUCTURES (I) CE 313 STEEL STRUCTURES (I)

25% 10% 15% 50%

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Introduction 5

    

what is steel structure? why choose steel structures? where & when use steel structures? main structural types design concept & rationale of steel structures

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016 2016

What’s steel structure?

Introduction

architecture → structure →steel structure 6

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016 2016

What’s steel structure?

Introduction

definition & scope 7

STEEL STRUCTURE: a structure which is made from organized combination of structural STEEL members designed to carry loads and provide adequate rigidity

steel structure, reinforced concrete (RC) structure, concrete-filled steel tubular (CFT) structure, steel-RC composite structure? …… steelwork of buildings, steel shelf bridges and civil eng. steel furniture Steel structure? Yes, but works in this course -------------CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016 2016

What’s steel structure?

Introduction

definition & scope 8

steel structures involve sub-structure or members in a building made from structural steel

SHANGHAI STADIUM Steel roof + concrete stand

SHANGHAI GRAND THEATER Steel roof + concrete columns

"May 22" Hall sports Sanaa Steel roof + concrete columns CE 404. Highway Engineering CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016 2016

What’s steel structure?

Introduction

definition & scope 9

structural member is physically distinguishable part of structure with independent structural function, e.g. member element cable and their combination

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Why use steel structure?

Introduction

advantages 10

High strength The high ratio of strength to weight (the strength per unit weight)

Excellent ductility and seismic resistance Withstand extensive deformation without failure even under high tensile stress

Elasticity, uniformity of material Predictability of properties, close to design assumption

Ease of fabrication and speed of erection

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Introduction 11

CE 313 STEEL STRUCTURES (I)

Elasticity, ductility and uniformity of material

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Introduction 12

CE 313 STEEL STRUCTURES (I)

Ease of fabrication and speed of erection

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Why use steel structure?

Introduction

disadvantages 13

 Susceptibility to corrosion Maintenance costs / thin-walled structure

 Loss of strength at elevated temperature Fireproofing costs

 Susceptibility to buckling Slender member in compression

 Fatigue and brittle fracture

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Introduction 14

Where & when use steel structures?

Long-span structures Multi-storey & high-rise buildings Buildings of heavy duty plants Tower & mast structures Portal frames Bridges Infrastructures Deployable structures Generalized structures: mechanical

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Long-span structures

Introduction 15

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

High-rise buildings

Introduction 16

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Introduction 17

CE 313 STEEL STRUCTURES (I)

Buildings of heavy duty plant

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Tower & Mast structures

Introduction 18

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Portal frames

Introduction 19

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Bridges

Introduction 20

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Infrastructures

Introduction 21

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Agricultural buildings

Introduction 22

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Sight-seeing

Introduction 23

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Generalized structures

Introduction 24

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Introduction

Main structural types 25

CE 313 STEEL STRUCTURES (I)

buildings and bridges

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Introduction

Main structural types 26

CE 313 STEEL STRUCTURES (I)

buildings: truss structures

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Main structural types

Introduction

buildings: frame structures 27

CE 313 STEEL STRUCTURES (I)

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Main structural types

Introduction

buildings: grid /domes 28

CE 313 STEEL STRUCTURES (I)

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Main structural types

Introduction

buildings: prestressed structures 29

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Main structural types

Introduction

buildings: prestressed structures 30

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Main structural types

Introduction

bridges: truss bridges 31

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Main structural types

Introduction 32

CE 313 STEEL STRUCTURES (I)

bridges: arch bridges

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Main structural types

Introduction

bridges: cable-stayed bridges 33

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Main structural types

Introduction

bridge: suspension structures 34

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Introduction

STRUCTURAL DESIGN 35

Structural design may be defined as a mixture of art and science, combining the experienced engineer’s intuitive feeling for the behavior of a structure with a sound knowledge of principles of statics, dynamics, strength of materials and structural analysis, produce a safe economical structure which will serve its intended purpose. At the same time it is necessary to be sensitive to preserve environment and natural materials in structural design. So structural design should be safe, economic, aesthetic and sustainable.

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Design concept & rationale

Introduction

ensure strength, stability and stiffness 36

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Introduction

Design concept & rationale 37

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Structural steel sections

Introduction 38

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Structural steel sections

Introduction 39

ThedimensionsanddesignationsofthestandardavaliableshapesaredefinedintheSta ndardssuchasEURONORM,ASTM,etc.Prof. Dr.

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Structural steel sections

Introduction 40

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Structural steel sections

Introduction 41

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Structural steel sections

Introduction 42

CE 313 STEEL STRUCTURES (I)

ALGHRAFY 2016

Thank You 43

CE 313 STEEL STRUCTURES (I)

2016