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Introduction to Structural Analysis and Design

What is Engineering ?

The word Engineer originates from the Latin term Ingenerare, meaning to invent, to create or to regulate.

It is the professional art of applying scientific principles to every day things to help make life easier

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What is Civil Engineering ?

Civil Engineering is a branch of engineering that encompasses the conception, design, construction, and management of residential and commercial buildings and structures, water supply facilities, and transportation systems for goods and people, as well as control of the environment for the maintenance and improvement of the quality of life

Specialization in Civil Engineering

Construction Engineering

Structural Engineering

Geotechnical Engineering

Transportation Engineering

Environmental Engineering

Water Resources Engineering

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What is Structural Engineering ?

Structural engineering is the science and art of designing and making, with economy and elegance, buildings, bridges, frameworks, and other structures so that they can safely resist the forces to which they may be subjected

Design of new structures

Intelligent use of new technologies and materials to control structural behavior

Upgrading existing structures

What is a Structure?

A combination of members connected together in such a way to serve a useful purpose is called a STRUCTURE

Structures include buildings, bridges, offshore platforms, transmission towers, and other specialized facilities

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What is a Structural Analysis?

Determination of reactions, member forces, deformation of the structure and deflection of joints due to applied loads and environmental effects

The primary work of an Engineer is to design

BUT

Analysis of a structure is required to check whether the design is safe

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Structural Idealization

Arch

A curved structural element that spans over an open space

Types of Structures

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Types of Structures

Truss A structural element that is composed of smaller structural members typically configured in triangular arrangements

Types of Structures

Frames Frame structures are the structures having the combination of beam, column and slab to resist the lateral and gravity loads

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Types of Structures

Cable Suspended Structure

Form of long-span structure that is subject to tension and uses suspension cables for support

Lotus Tower Sri Lanka

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Burj Khalifa

Petronas Twin Towers

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Gateway Arch