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叠合板式剪力墙考虑叠合面摩擦滑移的破坏机理研究*
沈小璞1,张江山1,雷庆关1,高彬森2
摘 要

(1 安徽建筑大学土木工程学院, 合肥 230022;  2 安徽新华学院土木与环境工程学院, 合肥 230088)

[摘要]针对叠合板式剪力墙结构,考虑叠合板式剪力墙预制外墙板与夹心现浇混凝土叠合面之间摩擦滑移这一高度非线性分析过程的影响,利用试验测试数据和非线性有限元软件ABAQUS,设置了7组不同相互作用的有限元模型,研究叠合板式剪力墙结构的破坏机理。比较在是否考虑摩擦滑移的情况下,叠合板式剪力墙结构的承载力、延性以及抗震能力的大小。通过分析与对比,在摩擦滑移的影响下,由于叠合面的存在,其内部夹心部分要先于外部预制部分破坏,呈现一定的分层破坏。研究结果表明,叠合板式剪力墙考虑摩擦滑移更加接近实际情况,且叠合板式剪力墙与全现浇混凝土剪力墙在抗震性能上区别相差不大,可等同于全现浇混凝土剪力墙的抗震性能。

[关键词]叠合板式剪力墙; ABAQUS; 摩擦滑移; 叠合面

中图分类号:TU375-4文献标识码:A文章编号:1002-848X(2018)22-0078-07

 

Study on the failure mechanism of laminated plate shear wall considering the friction slip

Shen Xiaopu1, Zhang Jiangshan1, Lei Qingguan1, Gao Binsen2

(1 School of Civil Engineering, Anhui Jianzhu University, Hefei 230022, China;2 College of Civil and Environmental Engineering, Anhui Xinhua University, Hefei 230088, China)

Abstract:Aiming at the laminated plate shear wall structure and considering the influence of the highly nonlinear analysis process of the friction slip between the cast-in-site concrete sandwich composite surface and the precast cladding overlay on the laminated plate shear wall. Seven groups of different finite element models of interaction were set up,  the destruction mechanism of the laminated plate shear wall structure was studied by using the test data and the nonlinear finite element software ABAQUS. In the case of whether considering friction slip, the bearing capacity, ductility and seismic capacity of the composite plate shear wall structure were compared. Through analysis and comparison, the deformation failure of the composite cladding was prior to the wall plate without considering the contact friction under the influence of the friction slip. Due to the existence of the laminated surface, the inner part of the sandwich was destroyed before the external prefabricated part and presents some delamination damage. The results show that the laminated plate shear wall considering the friction slip is closer to the actual situation. There is little difference in the seismic performance between the composite plate shear wall and the cast-in-site concrete shear wall, which can be equivalent to the seismic performance of the cast-in-site concrete shear wall.

Keywords:laminated plate shear wall; ABAQUS; friction slip; composite surface

 

*国家自然科学基金资助项目(51541806),安徽省自然科学基金资助项目(090414272X)。

 

作者简介:沈小璞,博士,教授,博士生导师,Email:xpshen@163.com。

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