爆炸荷载作用下框架结构的薄弱部位分析  

Dynamic Response Analysis for the Frame Structure under Explosion Load

作　　者：孙艳[1] 沈杉[1] 

机构地区：[1]武汉科技大学城市建设学院,武汉430065

出　　处：《建材世界》2014年第5期118-120,135,共4页The World of Building Materials

摘　　要：采用通用有限元软件SAP2000模拟钢筋混凝土框架在不同部位受到爆炸荷载作用的动力响应过程,并对荷载作用相应部位梁柱节点的位移进行对比分析。分析结果表明,荷载作用于角柱所在边跨引起的梁柱节点位移均大于荷载作用于中跨的梁柱节点位移。说明爆炸荷载对框架结构的影响与荷载作用部位密切相关,边跨动力响应大于中跨,而边跨中的角柱更是结构抗爆设计关键构件。The dynamic response process for the reinforced concrete frame suffering explosion load on different parts was simulated by the general finite element software SAP2000, followed by the analysis on the displacement of the beam-column joints under each condition. The analysis results show that the displacement of the beam-column joints when the explosion load acted on side span is more than the displacement when the explosion load acted on midspan, which makes it clear that the explosion load influence on frame structure is closely related to the side of action and side span influence is more than midspan influence. To further articulate, the corner post in side span is the critical element in explosion resistance design.

关 键 词：爆炸荷载 框架结构 动力响应 SAP2000 

分 类 号：TU375.4[建筑科学—结构工程]