某超高层建筑火灾后混凝土结构检测鉴定与修复加固
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翟传明1,2，韩庆华1,3，郭雨非2，卢燕1,3，郑佳明2（1 天津大学建筑工程学院， 天津 300072； 2 中电投工程研究检测评定中心， 北京 100840；3 天津大学滨海土木工程结构与安全教育部重点实验室， 天津 300072)［摘要］大量兴建具有复杂结构的超高层建筑给结构抗火设计和建筑防火管理带来了新的挑战，火灾后该类建筑结构的检测、鉴定工作具有现实的检验和指导意义。介绍了某超高层建筑火灾后相关混凝土结构的检测鉴定程序，通过对火灾现场进行应急排查、火灾温度判断、初步划分过火楼层区域，进行构件检测等工作，再根据构件的损伤程度及特点进行综合鉴定评级。最后，对不同等级的受损构件提出了相应的修复加固措施。［关键词］超高层建筑； 火灾； 混凝土结构； 损伤评估； 修复及加固中图分类号：TU375,TU978 文献标识码：A 文章编号：1002-848X(2013)19-0033-05Evaluation and repair of concrete structures for a burnt high-rise buildingZhai Chuanming1,2, Han Qinghua1,3, Guo Yufei2, Lu Yan1,3, Zheng Jiaming2(1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 CPI Engineering Research and Test Evaluation Center, Beijing 100840, China; 3 Binhai Civil Engineering Structure and Security Key Laboratory of the Ministry of Education, Tianjin University, Tianjin 300072, China)Abstract: Structural fire resistance design and fire prevention management face new challenges as more high-rise buildings with complex structure are constructed. The detection and inspection of these structures have realistic inspection and guilding significance after fire. The procedure for evaluating fire damage to concrete structures was discussed using a burnt high-rise building as an example. The procedure includes the emergency investigation of the fire site, the estimation of fire temperature, the initial division of floors and areas based on the visual damage, and the inspection of burnt structural members. The concrete structures were evaluated according to the degree of fire damage they received as well as their characteristics. Lastly, rehabilitation measures for concrete structures were proposed based on their fire damage grades.Keywords: high-rise building; fire; concrete structure; damage evaluation; repair and reinforcement作者简介：翟传明，教授级高工，Email: zhaichuanming@ceedi.cn。参考文献［1］范进,吕志涛. 混凝土结构抗火研究的主要内容［J］. 建筑技术,1999,30(5):319-320.［2］李耀庄,唐毓,曾志长. 钢筋混凝土结构抗火研究进展与趋势［J］.灾害学,2008,23(1):102-107.［3］GB 50016—2006 建筑设计防火规范［S］.北京：中国计划出版社,2006.［4］ASCE 29—05 Standard calculation methods for structural fire protection ［S］.Reston,2007.［5］EN 1992-1-2:2004, Eurocode 2: Design of concrete structures-Part 1-2: General rulesstructural fire design［S］.Brussels,2008.［6］李国强,韩林海,娄国彪,等. 钢结构及钢-混凝土组合结构抗火设计［M］.北京:中国建筑工业出版社，2006.［7］韩林海,宋天诣. 钢-混凝土组合结构抗火设计原理［M］.北京:科学出版社,2012.［8］李敏. 高强混凝土受火损伤及其综合评价研究［D］. 南京：东南大学，2005.［9］李敏,考宏涛,钱春香. 高强混凝土受火后损伤的模糊综合评价［J］.混凝土,2008（6）:8-10.［10］方崇,韦庆辉,梁汉吉. 遗传投影寻踪回归在火灾后高强混凝土损伤科学评价中的应用［J］.四川建筑科学研究,2010,36(4):84-86.［11］王威,苏经宇,韩阳，等. 火灾后混凝土损伤综合评价的物元模型［J］.混凝土,2008（1）:20-22.［12］杨璇. “央视大火”原因调查［J］.劳动保护,2010（4）:36-39.［13］ISO 834 Fire-resistance test-elements of building construction ［S］.2008.［14］ANNEREL E, TAERWE L. Innovative materials and techniques in concrete construction: Chapter 18 Assessment of the fire damage of concrete members after fire exposure ［M］.New York:Springer,2012.［15］上海市地方标准. DBJ08-291—96火灾后混凝土构件评定标准［S］.上海：上海科技出版社，1996.［16］CECS 252—2009 火灾后建筑结构鉴定标准［S］.北京:中国计划出版社,2009.［17］袁庆华. 火灾后建筑结构受损程度的鉴定及实例［J］. 工程质量分析,1997（2）:42-47.［18］闵明保. 火灾后结构受损程度的综合评定方法［J］. 建筑技术,2000,31(6):403.［19］翟传明,代伟明,王巍,等. 某工程火灾后安全性鉴定及修复加固［J］.施工技术,2009,38(6):67-69.［20］GUO ZHENHAI, SHI XUDONG. Experiment and calculation of reinforced concrete at elevated temperatures: Chapter 14 fire resistance analysis and damage grade evaluation of a structure ［M］. Beijing:Tsinghua University Press,2011.
