中国工程建设标准化协会公告

前　　言

1　总　　则

2　术语和符号

• 2.1　术　　语

• 2.2　符　　号

3　基本规定

4　调查和检测

• 4.1　一般规定

• 4.2　火作用调查

• 4.3　结构现状检测

5　火灾后结构分析与构件校核

6　火灾后结构构件鉴定评级

• 6.1　一般规定

• 6.2　火灾后混凝土结构构件的鉴定评级

• 6.3　火灾后钢结构构件的鉴定评级

• 6.4　火灾后砌体结构构件的鉴定评级

附录A　常见材料变态温度、燃点

附录B　混凝土表面颜色、裂损剥落、锤击反应与温度的关系

附录C　纤维素类可燃物轰燃大火当量升温时间的确定

附录D　火灾后混凝土构件材料微观分析

附录E　混凝土构件在标准升温条件下温度场实用曲线图

附录F　火灾后混凝土强度折减系数

附录G　高温时和高温冷却后钢筋强度折减系数

附录H　高温自然冷却后混凝土弹性模量、钢筋与混凝土粘结强度折减系数

附录J　高温过火后结构钢的屈服强度折减系数

附录K　火灾后粘土砖、砂浆、砖砌体强度与受火温度的折减系数

本标准用词说明

引用标准名录

1　General Provisions

2　Terms and Symbols

3　Basic Requirements

4　Investigation and Test

• 4.1　General Requirement

• 4.2　Investigate of Fire Action

• 4.3　Structural Investigation and In-place Performance test

5　Structural Analysis and Element Check After Fire

6　Assessment Ranking of Structural Element After Fire

• 6.1　General Requirement

• 6.2　Assessment Ranking of Concrete Structural Element After Fire

• 6.3　Assessment Ranking of Steel Structural Element After Fire

• 6.4　Assessment Ranking of Masonry Structural Element After Fire

Appendix A　Transform Temperature and Ignition Point of Common Materials

Appendix B　Relationship Between Temperature and Surface Color，Cracking and Peeling

Appendix C　Definition of the Equivalent Time of Fire Exposure Mainly Cellulose Type Fire Load

Appendix D　Micro-analysis of Concrete Element After Fire

Appendix E　Temperature Distribution for Concrete Element Cross Section at Standard Raising Temperature

Appendix F　Reduction Factor of the Compression Strength of Concrete After Fire

Appendix G　Reduction Factor of the Characteristic Strength of a Steel Bar at High Temperature and Cooling

Appendix H　Reduction Factor of Elastic Modulus of Concrete and Bond Strength Between Steel Bar and Concrete at High Temperature and After Cooling

Appendix J　Reduction Factor of Yield Strength of Structural Steel After at High Temperature and After Cooling

Appendix K　Reduction Factor of the Strength of Brick，Mortar and Block of Masonry Structure After Fire

Explanation of Wording in This Standard

Normative Standards Directory