钢管直径对T形截面钢管混凝土芯柱的抗爆性能影响研究  

STUDY ON EFFECTS OF TUBE DIAMETER ON ANTIKNOCK PROPERTY OF T-SHAPED CONCRETE-FILLED STEEL TUBE CORE COLUMNS

作　　者：王傲[1] 徐亚丰[1] 

机构地区：[1]沈阳建筑大学土木工程学院,沈阳110168

出　　处：《工程力学》2013年第B06期49-52,共4页Engineering Mechanics

基　　金：国家自然科学基金项目(19672016)

摘　　要：研究钢管直径这一参数的变化对T形截面钢管混凝土芯柱抗爆性能的影响。通过非线性有限元分析软件ABAQUS对钢管直径不同的T形截面钢管混凝土芯柱在爆炸荷载作用下的动力响应进行了数值模拟。比较了普通T形钢筋混凝土异形柱和T形钢管混凝土芯柱抗爆性能的差异。通过变化钢管直径,得到钢管直径的变化对T形钢管混凝土芯柱抗爆性能的影响。研究表明:T形钢管混凝土芯柱的抗爆性能优于普通T形钢筋混凝土异形柱;T形钢管混凝土芯柱的抗爆性能随钢管直径的增大而加强。Study on the effects of tube-diameters on T-shaped concrete-filled steel tube core column antiknock properties. The dynamic responses on the T-shaped concrete-filled steel tube core columns with different tube diameters under a blast load were simulated by the finite element analysis software ABAQUS. The differences of antiknock properties were compared between those of ordinary T-shaped reinforced concrete columns and those of T-shaped concrete-filled steel tube core columns. By changing the diameter of a steel tube, we attained the influence of different tube diameters on the antiknock property of T-shaped concrete-filled steel tube core columns. Finally, we draw a conclusion： the antiknock property of T-shaped concrete-filled steel tube core columns is better than that of common T shaped reinforced concrete columns. The antiknock property of T-shaped concrete-filled steel tube core column is strengthened with the increasing of a steel tube diameter.

关 键 词：T形钢管混凝土芯柱 钢管直径 爆炸荷载 应变率 动力增大系数 

分 类 号：TU398.9[建筑科学—结构工程]