型钢混凝土剪力墙边框柱-腹板组合分析模型研究

发布时间：2018-01-29 20:02

本文关键词： 型钢混凝土剪力墙边框柱-腹板组合分析模型有限元分析受力性能　出处：《建筑结构学报》2017年11期 　论文类型：期刊论文

【摘要】：通过对型钢混凝土(SRC)剪力墙的非线性有限元分析方法的研究,对目前存在的主要问题及其产生的原因进行了分析。根据SRC剪力墙的受力特点,综合考虑几何模型、材料本构、网格划分、极限状态确定等关键问题,提出了边框柱-腹板组合分析模型,并基于通用有限元程序ABAQUS进行二次开发,将能够较好反映受剪钢筋混凝土腹板基本受力性能的转角软化桁架模型(RA-STM)嵌入其材料库,应用于SRC剪力墙非线性有限元分析。通过与10片剪跨比为0.56~2.7、轴压比为0.1~0.342的SRC剪力墙拟静力试验结果的对比分析,表明所提出的边框柱-腹板组合模型能够比较准确地计算SRC剪力墙的极限承载能力和极限位移等,比较准确地模拟墙体的荷载-位移全过程曲线,准确地反映墙体的破坏过程和破坏模式。
[Abstract]:Based on the study of nonlinear finite element analysis method for SRC shear wall, the main problems and their causes are analyzed. According to the stress characteristics of SRC shear wall. Considering the key problems such as geometric model, material constitutive model, mesh division and limit state determination, a frame column-web composite analysis model is proposed, and the secondary development is carried out based on the general finite element program ABAQUS. The corner softening truss model (RA-STM), which can reflect the basic mechanical behavior of shear reinforced concrete web, is embedded in its material library. This paper is applied to nonlinear finite element analysis of SRC shear wall. The results of pseudostatic test of 10 SRC shear walls with shear span ratio of 0.56 ~ 2.7 and axial compression ratio of 0.1 ~ 0.342 are compared. The results show that the proposed model can accurately calculate the ultimate load-bearing capacity and ultimate displacement of SRC shear wall, and simulate the load-displacement curve of the wall accurately. Accurately reflect the failure process and failure mode of the wall.
【作者单位】：重庆大学土木工程学院;陆军勤务学院军事设施系;
【基金】：国家自然科学基金项目(51178486)
【分类号】：TU398.2
【正文快照】： 0引言非线性有限元数值模拟作为结构试验研究的补充手段,在结构或构件的抗震性能研究中得到广泛应用。在普通钢筋混凝土剪力墙中内置竖向型钢的型钢混凝土(SRC)剪力墙,施工简便,受力性能良好,在实际工程中得到广泛应用。SRC剪力墙试件承载力高,接近足尺的试验研究有限,因此,研

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