钢结构
鋼結構
강결구
Steel Construction
2015年
9期
36-39
,共4页
可燃气体%爆炸%LS-DYNA%玻璃幕墙
可燃氣體%爆炸%LS-DYNA%玻璃幕牆
가연기체%폭작%LS-DYNA%파리막장
combustible gas%explosion%LS-DYNA%glass curtain wall
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。
為研究管道油氣洩漏引髮可燃氣體爆炸對週圍建築的影響,基于乙炔/空氣混閤氣體爆炸的化學反應方程和熱力學公式,得到乙炔/空氣混閤氣體爆炸的爆炸參數,利用ANSYS/LS‐DYNA有限元分析軟件模擬瞭不同乙炔體積濃度的乙炔/空氣混閤氣體爆炸作用下,索桁架點支式玻璃幕牆的動態響應和破壞失效模式。結果錶明:乙炔體積濃度不小于7.5%時,玻璃幕牆錶麵已經髮生破壞。
위연구관도유기설루인발가연기체폭작대주위건축적영향,기우을결/공기혼합기체폭작적화학반응방정화열역학공식,득도을결/공기혼합기체폭작적폭작삼수,이용ANSYS/LS‐DYNA유한원분석연건모의료불동을결체적농도적을결/공기혼합기체폭작작용하,색항가점지식파리막장적동태향응화파배실효모식。결과표명:을결체적농도불소우7.5%시,파리막장표면이경발생파배。
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% .