02General Overview

02General Overview - CVEN 444 Structural Concrete Design...

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CVEN 444 Structural Concrete Design CVEN 444 Structural Concrete Design Structural System Overview Structural System Overview Dr. E. Sandt Fall 2002 Semester
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CVEN 444 Structural Concrete Desig 2 Presentation Overview Presentation Overview 1. Building system primary functions 2. Types of load 3. RC structural systems 4. RC structural members
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CVEN 444 Structural Concrete Desig 3 1. Basic Building System Functions Support gravity loads for strength and serviceability during: 1. Normal use (service) conditions 2. Maximum considered use conditions 3. Environmental loading of varying intensities
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CVEN 444 Structural Concrete Desig 4 Lateral deflection (sway) Wind or earthquakes Vertical deflection (sag) Dead, Live, etc. Performance-Based Design: Control displacements within acceptable limits during service loading, factored loaded, and varying intensities of environmental loading
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CVEN 444 Structural Concrete Desig 5 2. Types of Load Gravity: Dead Live Impact Snow Rain/floods Lateral Wind Earthquake Soil lateral pressure Thermal Centrifugal
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CVEN 444 Structural Concrete Desig 6 3. RC Structural Systems A. Floor Systems B. Lateral Load Systems
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CVEN 444 Structural Concrete Desig 7 A. Floor Systems Flat plate Flat slab (w/ drop panels and/or capitals) One-way joist system Two-way waffle system
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CVEN 444 Structural Concrete Desig 8 Flat Plate Floor System Slab-column frame system in two-way bending Plan Elevation
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CVEN 444 Structural Concrete Desig 9 Flat Plate Floor System Advantages: Simple construction Flat ceilings (reduced finishing costs) Low story heights due to shallow floors Typical Applications: Short-to-medium spans with light loading For LL=50 psi, 15’ - 30’ spans For LL=100 psi, 15’ – 25’ spans
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CVEN 444 Structural Concrete Desig 10 Flat Plate w/Spandrel Beam System Plan Elevation
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CVEN 444 Structural Concrete Desig 11 Flat Plate w/Spandrel Beam System Advantages: Same as flat plate system, plus Increased gravity and lateral load resistance Increased torsional resistance Decreased slab edge displacements Typical Applications: Same as flat plate systems
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CVEN 444 Structural Concrete Desig 12 Flat Plate w/Beams Floor System Gravity and lateral load frames Two-way bending
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02General Overview - CVEN 444 Structural Concrete Design...

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