钢结构抗火高等分析与设计

Introduction

1.1 Damage to Steel Structures Caused by Fire

l.l.1 Global Collapse of Steel Structures in Fire

1.1.2 Damage to Structural Components by Fire

1.2 Requirements for Fire Resistance of Steel Structures

1.2.1 Ultimate Limit State of Structures in a Fire

1.2.2 Load Bearing Capacity Criteria

1.2.3 Fire-Resistance Duration Demands

1.3 Approach for Determining Fire-Resistance of Steel Structures

1.3.1 Experimental Approach

1.3.2 Analytical Approach

References

Fire in Buildings

2.1 Basic Concepts

2.1.1 Fire Load

2.1.2 Heat Released Rate

2.2 Compartment Fire

2.2.1 Development of Compartment Fire

2.2.2 Heat Release Model of Fire before Flashover

2.2.3 Conditio Necessary for Flashover

2.2.4 Heat Release Rate of the Fire after Flashover

2.2.5 Modeling of Compartment Fire

2.2.6 Empirical Modeling of Compartment Fire

2.3 Large Space Building Fire

2.3.1 Characteristics of Large Space Building

2.3.2 Characteristics of Large Space Building Fire

2.3.3 Simulation of Large Space Building Fire using Zone Model

2.3.4 Characteristics of Large Space Building Fire

2.4 Standard Fire and Equivalent Exposure Time

2.4.1 Standard Fire

2.4.2 Equivalent Exposure Time

References

Properties of Steel at Elevated Temperatures

3.1 Thermal Properties of Structural Steel at Elevated Temperatures

...

3.1.1 Conductivity

3.1.2 Specific Heat

3.1.3 Deity

3.2 Mechanical Properties of Structural Steel at High Temperature

3.2.1 Test Regimes

3.2.2 Definition of Yield Strength at High Temperature

3.2.3 Mechanical Properties of Structural Steel at High

Temperatures

3.2.4 Yield Strength and Elastic Modulus of Fire-Resistant Steel

at High Temperatures

3.2.5 Stress-Strain Relatiohip of Normal Strength Structural

Steel and Fire-Resistant Steel at Elevated Temperatures

3.3 Mechanical Properties of High Strength Steel at High

Temperatures

3.3.1 High Strength Bolt

3.3.2 High Strength Cable

3.4 Properties of Stainless Steel at High Temperatures

3.4.1 Thermal Properties of Stainless Steel

3.4.2 Mechanical Properties of Stainless Steel at High

Temperatures

References

Temperature Elevatio of Structural Steel Components Exposed to

Fire

4.1 Laws of Heat Trafer

4.1.1 Heat Trafer in Structural Membe

4.1.2 Heat Trafer between Hot Smoke and a Structural Member

4.2 Practical Calculation Method for Temperature Elevation of

Structural Membe

4.2.1 Calculating Model

4.2.2 Temperature Elevation of Structural Component with

Uniformly Distributed Temperature

4.2.3 Temperature of Structural Component with Non-Uniformly

Distributed Temperature

4.3 Practical Calculation Method for Temperature Evolution of

Structural Membe Exposed to a Large Space Building Fire

4.3.1 Effects of Flame Radiation on Temperature Elevation of

Un-Protected Steel Structural Components

4.3.2 Parametric Study

4.3.3 Limit Value of Flame Radiation

4.4 Example

References

Fire-Resistance of Isolated Flexurai Structural Components

5.1 Load-bearing Capacity of a Flexural Steel Component at High

Temperatures

5.1.1 Strength of a Flexural Steel Component at High

Temperatures

5.1.2 Lateral Toional Buckling Strength of a Flexural Steel

Component at High Temperatures

5.1.3 Critical Temperature of a Flexural Steel Component in Fire.

5.1.4 Example

5.2 Fire-resistance of Flexural Steel-Concrete Composite Components

5.2.1 Material Properties and Temperature Calculation of a

Composite Beam

5.2.2 Strength of a Composite Beam at High Temperature

5.2.3 Critical Temperature of a Composite Beam

5.2.4 Parametric Study

5.2.5 Simplified Approach for the Fire Resistance Design of

Composite Beams

5.2.6 Example and Comparison

5.2.7 Experimental Validation

References

Fire-Resistance of Isolated Compressed Steel Components

6.1 Fire Resistance of Axially Compressed Steel Components

6.1.1 Load Bearing Capacity of Axially Compressed Steel

Components

6.1.2 Critical Temperature of art Axially Compressed Component

6.1.3 Example

6.2 Design Method for a Structural Component under the Combined

Axial Force and Bending Moment

6.2.1 Stability of a Structural Component under the Combined

Axial Force and Bending Moment

6.2.2 Cross-Sectional Strength of the Structural Component

under the Combined Axial Force and Bending Moment at

Elevated Temperatures

6.2.3 Critical Temperature of the Structural Component

Subjected to the Combined Axial Force and Bending

Moment

6.2.4 Example

References

Fire-Resistance of Restrained Flexural Steel Components

7，1 Fire-Resistance of a Restrained Steel Beam

7.1.1 Fire Test of Restrained Steel Beams

7.1.2 Analysis and Design for Fire-Resistance of a Restrained

Steel Beam

7.2 Fire Resistance of Steel-Concrete Composite Beams

7.2.1 Fire Test on Restrained Steel-Concrete Composite Beams .

7.2.2 Analysis of Restrained Steel-Concrete Composite Beams..

7.2.3 Practical Design Method for a Restrained Steel-Concrete

Composite Beam

7.2.4 Axial Force in the Composite Beam

References

Fire-Resistance of Restrained Steel Colum

8.1 Fire Test on Restrained Steel Colum with Axial and Rotational

Restraint

8.1.1 Test Set-Up and Test Specimen

8.1.2 Displacement and Temperature Acquisition

8.1.3 Test Schedule

8.1.4 Test Results

8.1.5 Numerical Simulation of the Fire Test

8.2 Parametric Study of Restrained Steel Colunms in a Fire

8.2.1 Paramete

8.2.2 Parametric Study on a Restrained Steel Column under

Axial Load Only in a Fire

8.2.3 Parametric Study of a Restrained Column under Combined

Axial Load and Bending Moment in a Fire

8.3 Simplified Design Method for Restrained Steel Colum in a Fire.

8.3.1 Design Method for Restrained Colum under Axial Load

Only in a Fire

8.3.2 Design Methods for the Restrained Colum under

Combined Axial Load and Bending Moment

8.4 Fire-Resistance of Restrained Colum with Non-Uniform

Temperature Distribution

8.4.1 Test Arrangement and Itrumentation

8.4.2 Temperature Distribution

8.4.3 Continuum Model

8.4.4 Experiment Study

References

Fire-Resistance of Composite Concrete Slabs

9.1 Fire-resistance Design Method for Composite Concrete Slabs

Based on Small Deflection Theory

9.1.1 Studied Slabs

9.1.2 Parametric Studies

9.1.3 Simplified Design Method

9.1.4 Verification by the Fire Resistance Test

9.2 Fire Resistance Design Method for the Composite Stab

Coidering Membrane Action

9.2.1 Development of the Membrane Action of a Composite Slab

in a Fire

9.2.2 Fire Test on the Composite Slab

9.2.3 Analysis of the Composite Slab in Coideration of the

Membrane Action in a Fire

References

10 Analysis of Steel Moment-Resistant Frames Subjected to a Fire

10.1 Element for Analysis

10.1.1 Properties of the Elemental Cross-Section

10.1.2 Location of the Neutral Axis in an Elastic State

10.1.3 Eqnivalent Axial Stiffness

10.1.4 Equivalent Bending Stiffness in an Elastic State

10.1.5 Initial Yielding Moment

10.1.6 Location of the Neutral Axis in Total Plastic State

10.1.7 Plastic Moment

10.1.8 Stiffness of Element

10.2 Thermal Force of Element ~

10.3 Structural Analysis

10.4 Experimental and Theoretical Prediction

References

11 Analysis and Design of Large Space Steel Structure Buildings

Subjected to a Fire

11.1 Practical Analysis Approach for Steel Portal Frames in a Fire

11.1.1 Finite Element Modeling and Assumptio

11.1.2 Paramete Influencing the Fire Resistance of a Steel Portal

Frame

11.1.3 Estimation of the Critical Temperature of a Steel Portal

Frame

11.1.4 Example

11.1.5 Fire Protection

11.2 Critical Temperature of a Square Pyramid Grid Structure in a

Fire..

11.2.1 Paramete of Grid Structures

11.2.2 Definition of Paramete

11.2.3 Critical Temperature of the Structural Component

11.2.4 Critical Temperature of the Grid Structure in Uniform

Temperature Field

11.2.5 Critical Temperatures of the Grid Structure in a

Non-Uniform Temperature Field

11.2.6 Conditio for a Grid Structure with no Need of Fire

Protection

11.3 Continuous Approach for Cable-Net Structural Analysis in a

Fire ..

11.3.1 Behavior of a Single Cable in a Fire

l 1.3.2 Behavior of the Cable-Net Structure in a Fire

11.3.3 Simplified Method for the Critical Temperature of a

Cable-Net Structure

11.3.4 Critical Temperature of a Cable-Net Structure with

Elliptical or Diamond Plan View

11.3.5 Critical Temperature of the Cable-Net Structure with

Parabolic Plan View

References

Appendix A: Paramete for Calculating the Smoke Temperature in

Large Space Building Fire

Appendix B: Stiffness Matrixes of Beam-Column Elements

Appendix C: Height of the Flame

Appendix D: Critical Temperatures of Composite Beams

Appendix E: Critical Temperatures of a Steel Column Subjected to

Combined Axial Force and Bending Moment

Appendix F: Maximum Fire Power at Which a Grid Structure Does

not Need Fire Protection

Index

《Advanced Analysis and Design for Fire Safety of Steel Structures》"Steel structure fire resistant advanced analysis and design （English veion）（fine）"（Li Guoqiang， Wang Peijun）：Advanced Analysis and Design for Fire Safety of Steel Structures systematically presents the latest findings on behaviou of steel structural components in a fire, such as the catenary actio of restrained steel beams, the design methods for restrained steel colum, and the membrane actio of concrete floor slabs with steel decks. Using a systematic description of structural fire safety engineering principles, the autho illustrate the important difference between behaviou of an isolated structural element and the restrained component in a complete structure under fire conditio."Steel structure fire resistant advanced analysis and design （English veion）（fine）" will be an essential resource for structural enginee who wish to improve their undetanding of steel buildings exposed to fires. It is also an ideal textbook for introductory coues in fire safety for master's degree programs in structural engineering, and is excellent reading material for final-year undergraduate students in civil engineering and fire safety engineering. Furthermore, it successfully bridges the information gap between fire safety enginee, structural enginee and building ipecto, and will be of significant interest to architects, code officials, building designe and fire fighte.

《Advanced Analysis and Design for Fire Safety of Steel Structures》介绍钢结构抗火研究的最新进展，包括受约束钢梁的悬链线效应、受约束钢柱的弯曲效应以及混凝土楼板的薄膜效应。这些效应对钢结构抗火性能有重要影响，在结构抗火设计中考虑此影响可以提高钢结构的抗火能力。《Advanced Analysis and Design for Fire Safety of Steel Structures》介绍这些效应的概念，形成机理和分析方法，以及考虑这些效应的钢结构抗火设计方法，有学术和工程实用价值。