湖南大学学报（自然科学版）2012，Vol.39Issue(9)：6-10,86,6.
高温后钢管混凝土抗多次冲击力学性能试验研究
Experimental Study on the Dynamic Behavior of Concrete-Filled Steel Tube after Exposure to High Temperatures under Multiple Impact Loadings
摘要
Abstract
An experimental study on the impact resistance of concrete filled steel tube (CFT) after exposure to high temperatures (100 ℃, 300 ℃ , 500 ℃ and 700 ℃) under multiple impact loadings was carried out by using a Split Hopkinson pressure bar (SHPB). The strain and stress versus time relation curves of CFT specimens were measured to experimentally analyze the dynamic behaviors of CFT under multiple impact loadings. The test results have shown that CFT after exposure to high temperature experiences no remarkable strength deterioration and has excellent impact-resistance to multiple impact loadings. Concrete filled steel tube is excellently suitable to resist the possible progressive collapse of structures on fire and the double actions of high temperature exposure and blasting or impact loading caused by military attacks.关键词
抗冲击性能/钢管混凝土/高温后/动态强度Key words
concrete-filled steel tube/ high temperature/ impact resistance/ dynamic strength分类
建筑与水利引用本文复制引用
霍静思,何远明,肖莉平,陈柏生..高温后钢管混凝土抗多次冲击力学性能试验研究[J].湖南大学学报（自然科学版）,2012,39(9):6-10,86,6.基金项目
国家自然科学基金资助项目(50778069) （50778069）
长江学者和创新团队发展计划教育部创新团队资助项目(IRT0619) （IRT0619）
