Experimental investigation on dynamic response and damage models of circular RC columns subjected to underwater explosions

作     者：Tie-shuan Zhuang Ming-yang Wang Jun Wu Cheng-yu Yang Tao Zhang Chao Gao Tie-shuan Zhuang;Ming-yang Wang;Jun Wu;Cheng-yu Yang;Tao Zhang;Chao Gao

作者机构：State Key Laboratory of Disaster Prevention and Mitigation of Explosion and ImpactArmy Engineering University of PLANanjing210007China Research Institute for National Defense Engineering of Academy of Military SciencePLALuoyang471023China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2020年第16卷第4期

页      面：856-875页

核心收录：

学科分类：081505[工学-港口、海岸及近海工程] 08[工学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 082401[工学-船舶与海洋结构物设计制造] 

基　　金：funded by the National Natural Science Foundation of China(Grant Nos.51578543) 

主　　题：Underwater explosion Reinforced concrete(RC)columns Load distribution characteristics Dynamic response Damage models 

摘      要：Reinforced concrete(RC) columns are widely used as supporting structures for high-piled *** study of damage model of a RC column due to underwater explosion is a critical issue to assess the wharfs antiknock *** this study,the dynamic response and damage model of circular RC columns subjected to underwater explosions were investigated by means of scaled-down experiment *** were carried out in a 10.0 m diameter tank with the water depth of 2.25 m,under different explosive quantities(0.025 kg-1.6 kg),stand-off distances(0.0 m-7.0 m),and detonation depths(0.25 m-2.0 m).The shock wave load and dynamic response of experiment models were measured by configuring sensors of pressure,acceleration,strain,and ***,the load distribution characteristics,time history of test data,and damage models related to present conditions were obtained and *** damage models,including bending failure,bending-shear failure and punching failure,were *** addition,the experie nce model of shock wave loads on the surface of a RC column was proposed for engineering application.