水平冲击荷载作用下钢筋混凝土柱外在因素位移响应分析  

DISPLACEMENT RESPONSE ANALYSIS OF EXTERNAL FACTORS OF RC COLUMNS UNDER HORIZONTAL IMPACT LOAD

作　　者：姜浩[1] 任家萱 王勃[1] 王凯[1] JIANG Hao;REN Jiaxuan;WANG Bo;WANG Kai(School of Civil Engineering, Jinlin Jianzhu University, Changchun 130118, China)

机构地区：[1]吉林建筑大学土木工程学院

出　　处：《低温建筑技术》2019年第8期56-59,共4页Low Temperature Architecture Technology

基　　金：国家重点研发计划（2017TFC0806100）;吉林省重点科技研发项目（2018020179SF）

摘　　要：钢筋混凝土柱是结构中重要的受力构件,因此有必要研究RC柱在冲击荷载作用下的位移响应。为在水平冲击荷载作用下正确认识RC柱的性能和表现,同时为RC柱抗冲击设计的改进提供参考。使用有限元软件ANSYS/LS-DYNA建立RC柱模型,并分析探讨了四种外在因素(冲击作用位置、冲击接触面积、冲击质量、冲击速度)对水平冲击荷载作用下RC柱的位移响应的影响,结果表明,受到水平冲击荷载作用时RC柱的位移响应会随着冲击速度和冲击质量的降低而减少,而冲击面积则对其作用效果不明显。Reinforced concrete columns are important members of the structure. Therefore, it is necessary to study the displacement response of RC columns under impact loadfor correctly understanding the capability and performance of RC columns under horizontal impact loads and providing reference for the improvement of reinforced concrete columns impact-resistance design. The RC columns finite element model was established with ANSYS/LS-DYNA software and the effect of four external factors on displacement response under horizontal impact load was studied. The results show that the displacement response of the RC column decreases with the reduction of impact velocity and impact mass under the horizontal impact load, while the impact area have no obvious effect on it.

关 键 词：钢筋混凝土柱 冲击荷载 有限元模型 响应分析 

分 类 号：TU375.3[建筑科学—结构工程]