装配式钢结构住宅围护体系结构性能试验研究及数值分析

发布时间：2018-03-10 11:09

本文选题：钢结构住宅　切入点：钢筋桁架楼承板　出处：《合肥工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：本文针对一种新型钢筋桁架楼承板和新型整体式内墙板进行试验研究和有限元数值分析,为新型材料的推广使用提供理论支持。本文首先对不同跨度的共18块钢筋桁架楼承板进行无支撑适用跨度试验,通过试验结果和有限元模型计算结果对比分析以验证楼承板试件在浇筑混凝土的施工阶段体系可靠性及适用性,确定可拆底模钢筋桁架楼承板的最大无支撑跨度,为规程施工阶段计算方法的条文编制提供理论依据。本文研究的整体式复合内墙板可以提高钢结构装配式住宅的施工效率并且能很好地解决钢梁的隔声问题,但由于其将钢梁与墙板制作形成一个整体,在工程现场同时安装就位,与常规的钢结构建筑施工先安装完毕主体结构构件后再安装墙板的受力模式有所区别。而且由于缺乏相应的规程图集和成熟的工程应用经验,故在工程应用前需对该种整体式复合内墙板进行结构性能的分析研究。在课题组成员内墙板试验研究的基础上,本文对带有该种复合内墙板的样板房进行了承载力试验研究,并利用MIDAS GEN建立了有限元模型与试验结果进行对比,验证了建模方法的正确性,在此基础上建立了该项目十八层钢结构住宅以及不带整体式墙板的钢框架结构的整体分析模型,对两种结构进行了抗震性能和受力分析,分析结果表明,整体式墙板的布置可以显著提高结构的整体稳定性、抗侧刚度、抗剪承载力及整体刚度。本文的研究成果应用在安徽省首例装配式钢结构住宅项目中,可以为钢筋桁架楼承板和整体式复合墙板在工程实践中的应用提供理论依据,对于推动我国装配式钢结构住宅的发展具有重要的理论及工程意义。
[Abstract]:In this paper, an experimental study and finite element numerical analysis of a new type of steel truss floor plate and a new type of integral inner wall slab are carried out. It provides theoretical support for the popularization and application of new materials. In this paper, first of all, 18 steel truss floor plates with different spans are tested without bracing. By comparing and analyzing the test results and finite element model calculation results, the reliability and applicability of the system in the construction stage of the concrete castings are verified, and the maximum unsupported span of the rebar truss floor slab with removable bottom formwork is determined. This paper provides a theoretical basis for the formulation of the calculation method in the construction stage. The integral composite inner wall plate studied in this paper can improve the construction efficiency of the steel structure assembly house and solve the sound insulation problem of the steel beam. But because it makes steel beams and wallboards as a whole, they are installed in place at the same time at the site of the project. It is different from the conventional steel structure construction that the main structural members are installed first and then the wall panels are installed. Moreover, due to the lack of corresponding specification atlas and mature engineering application experience, Therefore, it is necessary to analyze and study the structural performance of the monolithic composite inner wall panel before engineering application. On the basis of the experimental study of the inner wall panel of the members of the research group, the bearing capacity of the model house with the composite inner wall panel is studied in this paper. The finite element model established by MIDAS GEN is compared with the test results, and the correctness of the modeling method is verified. On this basis, the integral analysis model of the 18 story steel structure residence and the steel frame structure without integral wallboard is established. The seismic behavior and stress of two kinds of structures are analyzed. The results show that the layout of integral wallboard can improve the overall stability and lateral stiffness of the structure. Shear bearing capacity and overall stiffness. The research results of this paper are applied to the first case of the assembled steel structure residential project in Anhui Province, which can provide the theoretical basis for the application of the steel truss floor bearing plate and the integral composite wall slab in the engineering practice. It has important theoretical and engineering significance for promoting the development of prefabricated steel structure residence in our country.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU391

【参考文献】