Structure Analysis I

Structure Analysis I

Lecture 2

Types of Structures &

Loads

Introduction

• Structure refers to a system of connected parts used to support load, such as Buildings, Bridges, towers, …………….

Structural Elements

• Tie Rods

• Beams

• Columns

Type of Structure

• Trusses

• Cables & Arches

• Frames

• Surface Structures

Loads

Codes• General Building Codes1. ASCE2. UBC• Design Codes1. ACI2. AISC3. AASHTO

Dead Load

Live Load

• Building Loads

• Bridge Load

Wind Load

)(N/m 613.0

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pressureWind

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Snow Load

Earthquake Load

Hydrostatic and Soil Pressure

Other natural Loads

Structural Design

• LRFD (Load and resistance factor design)

Load combination example:1.4 Dead Load1.2 Dead Load +1.6 Live Load1.2 Dead Load +1.6 Live Load + 0.5 Snow

Load1.2 Dead Load + 1.5 Eq. Load + 0.5 Live

Load