钢管超高强钢纤维混凝土柱抗爆性能试验研究  

Experimental study of ultra-high performance fiber reinforced concrete filled steel tube columns under blast loading

作　　者：金何伟 刘中宪[1] 刘申永 苏宇[1] 

机构地区：[1]天津城建大学天津市土木建筑结构防护与加固重点实验室,天津300384

出　　处：《建筑结构》2016年第4期45-49,共5页Building Structure

基　　金：天津市科技支撑计划项目(14ZCZDSF00016);国家科技支撑计划项目(2012BAJ07B05)

摘　　要：对钢管超高强钢纤维混凝土柱在爆炸荷载作用下的动力响应进行了试验研究,试验测得了三个不同装药量的反射压力时程曲线,对比分析了空心及实心方形截面和圆形截面钢管超高强钢纤维混凝土柱的动力响应差异,讨论了不同折合距离的影响。试验结果表明:在相同内、外径(边长)条件下,方形截面钢管超高强钢纤维混凝土柱抗爆性能优于圆形截面的。若设计得当,空心方形截面钢管超高强钢纤维混凝土柱抗爆性能优于实心方形截面的。The dynamic response of ultra-high performance fiber reinforced concrete filled steel tube columns under blast loading was investigated. Three reflected pressure time-history curves with different powder doses were measured during the test. Dynamic response differences of ultra-high performance fiber reinforced concrete filled steel tube columns with different cross-sections of hollow,solid square and circular sections were compared and analyzed. The effect of different equivalent distances were discussed. The test results show that on the conditions of same inner and outer diameter（ side length）,anti-blast performance of ultra-high performance fiber reinforced concrete filled steel tube columns with square cross section is better than circular cross section. If designed properly,anti-blast performance of ultra-high performance fiber reinforced concrete filled steel tube columns with hollow square cross section is better than solid square cross-section.

关 键 词：超高强纤维混凝土 钢管混凝土柱 爆炸荷载 动力响应 

分 类 号：TU398[建筑科学—结构工程]