组合式钢框架内填预制RC墙结构静力性能有限元分析

发布时间：2018-05-12 10:20

本文选题：组合式 + 钢框架　；参考：《工程科学学报》2017年11期

【摘要】：钢框架内填预制钢筋混凝土剪力墙结构是新型混合式结构,由钢框架与内填墙组成双重防线,具有良好的抗侧力能力,同时预制构配件和预制装配建筑有利于推动住宅产业化发展.考虑大尺寸内填预制RC墙运输和安装困难的情况,提出竖向和横向组合式钢框架内填RC墙结构,采用ABAQUS建立有限元模型进行结构受力分析.通过分析荷载位移曲线,构件应力分布和变形情况,研究结构破坏特点和受力性能.结果表明,全螺栓结构因其合理的传力路径,有良好的承载力和延性;竖向组合式具有较好的初始刚度和整体承载力,与全螺栓连接预制RC墙有近似的受力性能,便于运输和安装;而横向组合式由于上下板缺乏有效传力路径,初始刚度和最终承载力都明显低于全螺栓和竖向组合式,不利于实际工程应用.
[Abstract]:The precast reinforced concrete shear wall structure in the steel frame is a new type of hybrid structure, which consists of a double line of steel frame and inner wall, and has a good ability to resist side force. At the same time, the prefabricated fittings and prefabricated assembly buildings are beneficial to the development of the housing industrialization. The difficulty of transporting and installing the prefabricated RC walls in large size is proposed. The vertical and lateral composite steel frames are filled with RC wall structure, and the finite element model is established by ABAQUS to analyze the structural stress. By analyzing the load displacement curve, the stress distribution and deformation of the components, the structural failure characteristics and the mechanical properties are studied. The results show that the full bolt structure has good bearing capacity and extension because of its reasonable transmission path. The vertical combination has good initial stiffness and overall bearing capacity. It has approximate stress performance to the prefabricated RC wall with full bolt connection, which is convenient for transportation and installation, while the lateral combined type is obviously lower than the full bolt and vertical combination because of the lack of effective transmission path of the upper and lower plates.

【作者单位】：北京科技大学土木与资源工程学院;中国建筑标准设计研究院;
【基金】：国家自然科学基金资助项目(51578064) 北京市自然科学基金资助项目(8172031)
【分类号】：TU398.2

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