爆炸冲击波作用下钢板-混凝土组合结构受力性能分析  

Analysis on Dynamic Properties of Steel-concrete Composite Structure under Blast Waves

作　　者：姜鹏飞 叶琳 伍俊[2] 

机构地区：[1]第二炮兵工程设计研究院,北京100011 [2]总参工程兵科研三所,洛阳471023

出　　处：《武汉理工大学学报》2013年第5期95-98,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50578082)

摘　　要：为防护爆炸冲击波对建筑物的破坏作用,提出了一种新型钢板-混凝土组合结构,分析了组合结构在爆炸冲击波作用下的变形及变形吸能特性。采用单向构件在均布荷载作用下的抗力分析方法,推导了基于极限抗弯承载力的组合结构极限抗力的计算公式;采用单向构件在冲量荷载下的动力响应分析方法,对组合结构的整体变形进行了分析,推导了基于大挠度变形的组合结构变形以及变形吸能计算公式,系统分析了爆炸当量、结构高度、结构厚度等因素对组合结构变形的影响。结果表明,随着爆炸当量、结构高度增大,结构厚度以及钢板厚度减小,组合结构墙体转角增大,变形加剧。Aiming at effective resistance to structures damage under blast waves,a newly-designed steel-concrete composite structure was put forward.Energy absorption by deformation and the deformation degrees of composite structure were analyzed.Based on analytical method of resisting force of one way slab under uniform loading,calculation formula of resisting force of composite structure was deduced.According to analytical method of dynamic response of one way slab under uniform impulse loading,the calculation formula of energy absorption by deformation and the deformation degrees were deduced based on large deformation of composite structure.The influence of explosive weight,wall＇s height and wall＇s thickness on deformation degrees of composite structure was also studied.The analysis indicates that deformation degree of composite structure increases as explosive weight and wall＇s height increase,wall＇s thickness and steel thickness decrease.

关 键 词：组合结构 混凝土 爆炸冲击波 抗力 变形 

分 类 号：O383[理学—流体力学] TU352.1[理学—力学]