第38卷第5期 2016年10月
土木建筑与环境工程
Journal of Civil,Architectural &.Environmental Engineering
doi:10.11835/j.issn.1674-4764.2016. 05.007
Vol. 38 No. 5 Oct.2016
近爆作用下压型钢板组合楼板动力响应及
影响因素数值分析张秀华1.2，高珊，吴建
（1.东北林业大学土木工程学院，哈尔滨150040；2.江苏省结构工程重点实验室，江苏苏州215011）摘要：利用有限元软件ANSYS/LS-DYNA，采用流固耦合的计算方法，对压型钢板组合楼板在近爆炸荷载作用下进行了不同工况的数值模拟，得出其受力形态，分析其动力响应及破坏过程，找出影响楼板动力响应的主要因素。数值分析结果表明：适当增加混凝土厚度和提高压型钢板强度，可以显著降低组合楼板的跨中最大位移，提高组合楼板的延性和抗爆性能；组合楼板中钢筋间距的变化，对组合楼板抗爆性能影响较小。
关键词：爆炸荷载；组合楼板；动力响应；影响因素；数值分析
中图分类号：TU398.9
文献标志码：A
文章编号：1674-4764(2016)05-0050-09
Numerical analysisfor dynamic responses and influencing factors ofprofiledsteel-concretecompositeslabundernearexplosion
ZhangXiuhual,2,GaoShan',WuJianl
(1. School of Civil Engineering, Northeast Forestry University, Harbin 150040, P. R. China 2. Jiangsu Key Laboratory of Structural Engineering+ Suzhou 215011, Jiangsu, P. R. China)
Abstract: Explicit dynamic finite element program ANSYS/LS-DYNA is adopted. According to the method of fluid-structure interaction, profiled steel-concrete composite slab is simulated under near explosion in different conditions. And the stress form, the dynamic responses and failure process were analysed. Numerical analysis results show that the largest displacement of composite floor slab can be significantly reduced with increasing the thickness of the concrete and improve the strength of the steel plate. The ductility and anti-explosion performance of composite floor slab can be improved. The anti-explosion performance of composite floor slab has less effect by changing reinforced spacing. The reference and basis can be provided for antiknock design of profiled steel-concrete composite slab.
Keywords:blast load; composite slab; dynamic response; influencing factors; numerical analysis
近年来意外爆炸事件时常发生，人们逐渐了解了一些发生在身边和生活中的爆炸现象，如煤气爆炸、化学品爆炸、恐怖袭击爆炸等。2015年8月的
收稿日期：2016-05-16
基金项目：江苏省结构工程重点实验室开放课题（ZD1303）
天津塘沽大爆炸事故产生了重大影响，引起了人们的重视和警惕。爆炸荷载和静力荷载不同，属于动力问题，且爆炸荷载具有速度快、偶然性大、作用
作者简介：张秀华（1970-），女，博士，副教授，主要从事结构工程抗爆、抗震研究，（E-mail)zhangxh2000163.com。 Received:2016-05-16
Foundation item: Provincial Key Laboratory of Open Research in Jiangsu Province(No. ZD1303)
Author brief:Zhang Xiuhua(1970-), PhD, associate professor, main research interest: blast-resistant/seismic of structure 万方数据gineering，（E-mail）zhangxh2000@163.com.