钢管混凝土结构构件抗爆性能的试验研究  

Experimental Study on Antiknock Performance of Concrete Filled Steel Tube

作　　者：薛建英[1] 刘玉存[1] 刘天生[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《中北大学学报（自然科学版）》2011年第6期786-790,共5页Journal of North University of China(Natural Science Edition)

摘　　要：对建筑结构构件存在巨大潜在破坏危险的爆炸冲击现象,开展了钢管混凝土结构构件在爆炸荷载作用下的动力响应试验研究.以相同管径3种不同壁厚的钢管混凝土简支构件为试验对象,分别进行了3个不同药量的炸药起爆,测量了爆炸冲击波压力时程曲线、构件跨中底部的应变时程曲线及构件跨中的最终挠度,对爆炸作用力、套箍系数与构件变形的关系进行了分析.试验表明,提高构件的套箍系数及自振周期,能够提高构件的抗爆能力.For the fact that there is a huge potential destructive danger of explosion impact on structure components,the dynamic response of concrete filled steel tubes（CFST） subjected to blast load were studied.The tests were conducted to the CFST with the same diameter and different wall thickness.The explosions of different dosages were tested and the pressure-time curve of blast wave,the strain curves in the bottom of component and the final deflection of component were measured.The relation of explosive force,casing hoop steel coefficient and component deformation was analyzed.The results showed that CFST had good ductility and impact resistance,improving the casing hoop steel coefficient of CFST structures can enhance the ability of anti-explosion.

关 键 词：钢管混凝土 爆炸冲击波 动力响应 套箍系数 承载力 

分 类 号：O38[理学—流体力学]