摘要
双肢剪力墙是装配整体式混凝土剪力墙体系中较为常见的墙体形式。基于ABAQUS软件,建立了考虑材料非线性和预制拼缝构造等因素影响的装配整体式混凝土双肢剪力墙非线性有限元分析模型。通过与试验结果的对比分析,验证了该有限元分析模型的合理性。在此基础上,开展了装配整体式混凝土双肢剪力墙的有限元参数分析,主要分析参数包括轴压比、连梁跨高比等。结果表明:高轴压比(0.5)试件的承载力比低轴压比(0.2)试件高约24%,而不同轴压比试件的刚度相差在5%以内;相比于连梁跨高比为3的试件,连梁跨高比为2和2.5的试件承载力分别提高了7.5%和19.4%,刚度分别提高了19.2%和41.2%。
Coupled shear wall is a common form in the monolithic precast concrete shear wall structure.Based on ABAQUS software,considering the material nonlinearity and the structure of the monolithic precast concrete flat-fell seam,a finite element model of the precast concrete coupled shear wall was established. Based on the test results of a coupled wall specimen,the verification of the finite element analysis model was carried out. And based on the model,analysis of the factors including compression ratio and the span-depth ratio of the coupled shear wall was carried out. The results showed the fact that the bearing capacity of specimen under high axial compression ratio（ 0. 5） was about 24% higher than that of the specimen under low-axial compression ratio（ 0. 2）,while the stiffness difference of the specimens under different compression ratio was less than 5%. Compared with the specimen with a 3 span-depth ratio coupling beam,the bearing capacity of the specimens with 2 and 2. 5 span-depth ratio coupling beam increased by 7. 5% and 19. 4% respectively,and the stiffness increased by 19. 2% and41. 2% respectively.
作者
李昌州
秦端
胡翔
薛伟辰
LI Changzhou;QIN Duan;HU Xiang;XUE Weichen(China Minsheng Orawin Co. , Ltd. , Changsha, Hu＇ nan 410000, China;Department of Structural Engineering, Tongji University, Shanghai 200092, China)
出处
《施工技术》
CAS
2018年第12期35-38,47,共5页
Construction Technology
基金
国家重点研发计划项目(2016YFC0701400)
上海市科委项目(16DZ1201802)
关键词
剪力墙
装配整体式混凝土
双肢剪力墙
轴压比
连梁跨高比
有限元分析
shear wails
monolithic precast concrete
coupled shear wails
compression ration
coupling beam span-depth ratio
finite element analysis
