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Structure Analysis I
Structure Analysis I
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Lecture 2
Types of Structures &
Loads
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Introduction
• Structure refers to a system of connected parts used to support load, such as Buildings, Bridges, towers, …………….
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Structural Elements
• Tie Rods
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• Beams
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• Columns
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Type of Structure
• Trusses
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• Cables & Arches
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• Frames
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• Surface Structures
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Loads
Codes• General Building Codes1. ASCE2. UBC• Design Codes1. ACI2. AISC3. AASHTO
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Dead Load
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Live Load
• Building Loads
• Bridge Load
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Wind Load
)(N/m 613.0
22IVKKKq
pressureWind
dztzz
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Snow Load
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Earthquake Load
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Hydrostatic and Soil Pressure
Other natural Loads
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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