摘要
为验证浆锚连接装配式剪力墙的抗震可靠性并确定其抗震性能特点,对浆锚连接装配式剪力墙空间结构模型进行数值模拟分析。结合前期低周反复试验测试得到的装配式剪力墙拼缝变形和破坏特点,对装配式剪力墙拼缝的数值模拟方法进行简化,采用接触单元模拟混凝土拼缝、梁单元模拟纵向连接钢筋承受的销键剪切作用,实现装配式拼缝数值模拟。根据数值模拟结果,进一步分析空间结构模型的力学特征、应力和混凝土损伤分布规律等。研究结果表明:采用接触单元和梁单元分别模拟装配式拼缝和纵向连接钢筋销键剪切作用具有一定的合理性,数值模拟方法能较准确地计算空间结构模型极限承载力。
To verify the reliability and confirm the seismic characteristics of grouting-anchoring connecting precast shear wall,the numerical simulation on grouting-anchoring connecting precast shear wall spatial structure model was completed. According to the joint seam,deformation and damage characteristics in the test,the numerical simulation method was simplified,which utilized contact element to simulate concrete joint seam and beam element to simulate dowel shear action of connecting steel bar,and finally achieved the simulation method. According to the simulation results,the mechanical properties,stress and damage distribution were studied. The study proved that it was reasonable to utilize contact element and beam element to simulate precast joint seam and dowel shear action of connecting steel bars,and the simulation method can relative accurately to simulate ultimate strength of the spatial structure model.
作者
吴东岳
沈梦滢
孙崇芳
梁书亭
郭正兴
朱筱俊
WU Dongyue;SHEN Mengying;SUN Chongfang;LIANG Shuting;GUO Zhengxing;ZHU Xiaojun(Key Laboratory of Concrete and Pre-stressed Concrete Structure of Ministry of Education of Southeast University,Nanjing,Jiangsu 211189,China;School of Civil Engineering and Architecture,Jiangsu University of Science and Technology,Zhenjiang,Jiangsu 212000,China;Zhenjiang Municipal Archives Bureau,Zhenjiang,Jiangsu 212000,China;Jinan Rail Transit Group Co.,Ltd.,Jinan,Shandong 250000,China;School of Civil Engineering,Southeast University,Nanjing,Jiangsu 211189,China;Architects and Engineers Co.,Ltd.of Southeast University,Nanjing,Jiangsu 211189,China)
出处
《施工技术》
CAS
2019年第2期111-115,147,共6页
Construction Technology
基金
国家"十二五"科技支撑项目(2011BAJ10B03)
国家青年自然科学基金(51708260)
江苏省高校自然科学基金面上项目(2016TM045J)
关键词
装配式
剪力墙
拼缝
承载力
数值模拟
precast
shear wall
joint seam
bearing capacity
simulation
