摘要
为研究管道油气泄漏引发可燃气体爆炸对周围建筑的影响,基于乙炔/空气混合气体爆炸的化学反应方程和热力学公式,得到乙炔/空气混合气体爆炸的爆炸参数,利用ANSYS/LS-DYNA有限元分析软件模拟了不同乙炔体积浓度的乙炔/空气混合气体爆炸作用下,索桁架点支式玻璃幕墙的动态响应和破坏失效模式。结果表明:乙炔体积浓度不小于7.5%时,玻璃幕墙表面已经发生破坏。
In order to study the effects of flammable gas explosion caused by oil and gas pipeline leakage on road surface and the surrounding buildings,the acetylene/air＇s explosion parameters were calculated based on acetylene/air＇s reaction functions and thermodynamic equations.The dynamic response the failure modes of cable-truss point-supported glass curtain wall under the blasting of mixed gas＇ s explosions with different PVCs were simulated by using ANSYS/LS-DYNA software.The result showed that the surface of glass curtain wall was broken when the acetylene PVC was larger than 7.5%.
出处
《钢结构》
北大核心
2015年第9期36-39,共4页
Steel Construction
基金
四川大学能源工程安全与灾害力学教育部重点实验室基金
四川省应用基础研究计划项目(13JC0277)
