结构内爆炸荷载作用下钢筋钢纤维混凝土抗爆墙设计探讨STUDY OF BLAST WALL DESIGN UNDER EXPLOSION LOAD FROM ITS INTERNAL STRUCTURE
夏志成;许多;王静;周建南;
XIA Zhi-cheng,XU Duo,WANG Jing,ZHOU Jian-nan (Engineering Institute of Engineer Corps,PLA Univ.of Sci.& Tech.,Nanjing 210007,China)
摘要(Abstract):
基于内爆炸原理,分析了结构内爆炸荷载的组成,提出了内爆炸荷载作用下抗爆墙的解析计算方法,对钢筋混凝土抗爆墙设计进行优化;提出将钢纤维应用于抗爆墙设计,并结合实例对钢筋混凝土与钢筋钢纤维混凝土抗爆墙进行计算对比。结果表明:准静态气体压力使结构内抗爆隔墙所受荷载比建筑外抗爆墙高出25%以上;在相同距离、相同爆炸当量条件下,钢筋钢纤维混凝土比普通钢筋混凝土抗爆墙厚度减少11%。
Based on internal explosion principle,this paper analyzed the component of explosion load and proposed an approximate analytical calculation method of blast wall under the internal explosion load.Steel fibre was advised to be used in the design of blast wall.The paper also calculated comparatively the properties between blast wall out of steel fibre concrete and conventional concrete based on practical example,indicating that the load from quasi-static gas pressure were 25% more than that from outside buildings;and that,within the same distance and under the equivalent explosion load,the thickness of blast wall out of steel fibre concrete was 11% less than that out of conventional concrete.
关键词(KeyWords):
内爆炸;抗爆墙;钢纤维混凝土;准静态气压
Internal explosion;Blast wall;Steel fibre concrete;Quasi-static gas pressure
基金项目(Foundation):
作者(Authors):
夏志成;许多;王静;周建南;
XIA Zhi-cheng,XU Duo,WANG Jing,ZHOU Jian-nan (Engineering Institute of Engineer Corps,PLA Univ.of Sci.& Tech.,Nanjing 210007,China)
参考文献(References):
- [1]刘飞,任辉启,王肖均,孙斐.抗爆墙在地面重要建筑物反爆炸恐怖袭击中的作用[J].防护工程,2004,26(6):20-25.
- [2]Tri-Services Design Manual.Structures to Resist theEffects of Accidental Explosions[M].Depart ments ofthe Army,the Navy,and the Air Force,TM5-1300,NAVFAC P-397,AFM 88-22,Washington,D.C.,De-cember 1979.
- [3]贝克WE,威斯汀P S,斯特劳R A,等.爆炸危险性及其评估[M].张国顺,文以民,刘定吉译.北京:群众出版社,1988,184-220.
- [4]Waterway Experi mental Station,Corps of Engineers.Fundamentals of Protective Design for ConventionalWeapons[M].Depart ment of The Army,TM5-855-1,November 1986.
- [5]赵国藩,彭少明,黄承逵.钢纤维混凝土结构[M].北京:中国建筑工业出版社,1999.
- [6]Gopalaratnam VS,Gettu R.On the characterization offlexural toughness in FRC[J].Cement and ConcreteComposites.1995,17(2):239-254.
- [7]王璋水.钢纤维高强混凝土及其配筋梁的韧性[J].水利学报,2002(增刊):20-23.
- [8]卫明山,李利莎,丁巧爱,等.混杂钢纤维混凝土力学性能试验研究[J].四川建筑科学研究,2006(12):170-172.
- [9]中国工程建设标准化协会标准.钢纤维混凝土结构设计与施工规程[S]CECS38-92.
- 夏志成
- 许多
- 王静
- 周建南
XIA Zhi-cheng- XU Duo
- WANG Jing
- ZHOU Jian-nan (Engineering Institute of Engineer Corps
- PLA Univ.of Sci.& Tech.
- Nanjing 210007
- China)
- 夏志成
- 许多
- 王静
- 周建南
XIA Zhi-cheng- XU Duo
- WANG Jing
- ZHOU Jian-nan (Engineering Institute of Engineer Corps
- PLA Univ.of Sci.& Tech.
- Nanjing 210007
- China)