钢筋混凝土的高温性能试验及其计算电子书

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contents

preface

introdouction

PART Ⅰ Mechanical Behavior of Materials at Elevated Temperatures

1 Strength of Concrete at Elevated Temperatures

1.1 Testing Method and Device

1.2 Compressive Strength at Elevated Temperatures

1.3 Tensile Strength at Elevated Temperatures

Conclusions

References

2 Deformation of Concrete at Elevated Temperature

2.1 Deformation During Heating and Cooling

2.2 Compressive Deformation and the Stress-Strain Curve at Elevated Temperature

2.3 Stress-Strain Curves Under Repeated Loading

2.4 Short Time Creep at Elevated Temperature

Conclusions

3 Temperature-Stress Paths and Coupling Constitutive Relation of Concrete

3.1 Temperature-Stress Paths and Deformation Components

3.2 Compressive Strength of Concrete Under Different Temperature-Stress Paths

3.3 Thermal Strain Under Stress and Transient Thermal Strain

3.4 Coupling Temperature-Stress Constitutive Relation

Conclusions

References

4 Mechanical Behavior and Constitutive Relation of Reinforcement at Elevated Temperatures

4.1 Testing Method and Device

4.2 Tensile Strength at Elevated Temperature

4.3 Tensile Strain and Stress-Strain Curve at Elevated Temperature

4.4 Thermal Strain Under Stress

Conclusions

PART Ⅱ Temperature Field on a Cross Section of a Structural Member

5 Temperature-Time Curve of Fire and the Equation of Heat Conduction

5.1 Temperature-Time Curve of Fire

5.2 Thermal Behavior of Materials

5.3 Equation of Heat Conduction

Conclusions

References

6 Theoretical Analysis of the Temperature Field

6.1 Difference Analysis

6.2 Combined Finite Element and Difference Analysis

6.3 Computing Program and an Experimental Demonstration

Conclusions

References

7 Calculation Charts for a Temperature Field on a Cross Section

7.1 Basic Assumptions and Application Conditions

7.2 Slabs with One Surface Exposed to Fire

7.3 Beams and Columns with Three Surfaces Exposed to Fire

7.4 Square Columns with Four Surfaces Exposed to Fire

7.5 Square Columns with Two Adjacent Surfaces Exposed to Fire

PART Ⅲ Mechanical Behavior of Members and Structures at Elevated Temperatures

8 Behavior of Flexural Members at Elevated Temperatures

8.1 Testing Method and Device for Structural Members

8.2 Mechanical Behavior at Elevated Temperature

8.3 Mechanical Behavior Under Different Heating-Loading Conditions

Conclusions

References

9 Behavior of Compressive Members at Elevated Temperatures

9.1 Central Compressive Column with Three Surfaces Exposed to High Temperature

9.2 Eccentric Compressive Columns with Three Surfaces Exposed to High Temperature

9.3 Eccentric Compressive Columns with Three Surfaces Exposed to High Temperature Under Different Conditions

9.4 Eccentric Compressive Column with Two Adjacent Surfaces Exposed to High Temperature

Conclusions

References

10 Behavior of Statically Indeterminate Structures at Elevated Temperatures

10.1 Investigation of Content and Testing Methods

10.2 Behavior of a Continuous Beam at Elevated Temperatures

10.3 Behavior of Frames at Elevated Temperatures

Conclusions

References

PART Ⅳ Theoretical Analysis and Practical Calculation Method

11 General Mechanical Characteristics of Inhomogeneous Sections

11.1 Structural Members of Inhomogeneous Sections in Engineering Practice

11.2 Mechanical Character Points on a Section

11.3 Analytical Solution of Linear Elastic Material

Conclusions

12 Finite Element Analysis of the Loading History for Structures

12.1 Basic Assumptions and Constitutive Relations of Materials

12.2 Incremental Format of the Constitutive Relation of a Section

12.3 Finite Element Analysis of a Structure

12.4 Comparison Between the Theoretical Calculations and the Experimental Data

Conclusions

References

13 Practical Calculation Methods for the Ultimate Strength of Members and Structures at Elevated Temperature

13.1 Basic Assumptions and Determination of Equivalent Section

13.2 Central Compressive Members with Periphery Exposed to High Temperature

13.3 Flexural Members

13.4 Eccentric Compressive Members

13.5 Statically Indeterminate Structures

Conclusions

14 Fire Resistance Analysis and Damage Grade Evaluation of a Structure

14.1 Problems of Fire Resistance Analysis in Structural Engineering

14.2 Evaluation of the Fire Damage Grade of a Structural Member

14.3 Practical Example of Fire Resistance Analysis and Damage Grade Evaluation

Conclusions

Index