新型装配式钢丝网架夹芯墙板受力性能研究

发布时间：2018-10-25 06:47

【摘要】：钢丝网架混凝土夹芯墙板是一种自重轻、施工便捷、承载力高、整体性好的构件,同时兼具保温、隔热、防潮、隔音等实用功能,一方面可作为建筑物围护构件或内部分割墙,还可将其作为承重结构体系应用于多层住宅。新型钢丝网架夹芯墙板是一种基于传统钢丝网架夹芯板的创新型设计,与传统钢丝网架混凝土墙板相比,该类墙体结构形式具有工厂化程度高、现场拼装快捷简便、人工用量少、安装精度高、抗震性能好、适用于高层建筑、兼备保温隔热和外墙装修等优势,符合我国未来住宅发展方向和使用要求,具有广阔的应用前景。本文主要对新型钢丝网架的受力性能进行研究。首先,本文对2个一字型试件进行轴向受压试验,得到其荷载-位移曲线,混凝土应变曲线,钢筋应变曲线,极限承载力；然后运用有限元分析软件ABAQUS对等尺寸的试件进行非线性有限元建模分析,与各试件的试验结果作对比,分析表明该墙板受压性能较好,空间钢丝网架具有较好的延性。其次,本文进行3组6个试件的拟静力试验,得到墙板的滞回曲线,骨架线,裂缝发展趋势,极限承载力和位移,延性和刚度退化。然后运用有限元分析软件ABAQUS对等尺寸的试件进行非线性有限元建模分析,与各试件的试验结果作对比,分析表明该墙板刚度较大,斜截面抗剪承载力较大,空间钢丝网架墙板具有较好的延性和地震耗能能力。
[Abstract]:The concrete sandwich wall board of steel wire mesh frame is a kind of component with light weight, convenient construction, high bearing capacity and good integrity. It also has the practical functions of heat preservation, heat insulation, moisture proof, sound insulation, etc. On the one hand, it can be used as a building enclosure member or internal partition wall. It can also be used as a bearing-bearing structure system in multi-storey housing. The new type of steel wire net truss sandwich wall board is an innovative design based on the traditional steel wire grid truss sandwich panel. Compared with the traditional steel wire grid frame concrete wall board, this kind of wall structure has a high degree of industrialization and is quick and convenient to assemble on the spot. It is suitable for high-rise buildings and has the advantages of heat insulation and exterior wall decoration. It conforms to the development direction and application requirement of our country's future residence and has a broad application prospect. In this paper, the mechanical properties of the new steel wire grid are studied. Firstly, the axial compression tests of two one-type specimens are carried out, and the load-displacement curve, concrete strain curve, reinforcement strain curve and ultimate bearing capacity are obtained. Then the nonlinear finite element modeling analysis of the specimen with equal size is carried out by using the finite element analysis software ABAQUS, and the results are compared with the test results of each specimen. The analysis shows that the wall board has better compression performance and the space steel wire grid has better ductility. Secondly, the pseudostatic tests of 3 groups of 6 specimens are carried out, and the hysteretic curve, skeleton line, crack development trend, ultimate bearing capacity and displacement, ductility and stiffness degradation of the wall plate are obtained. Then using the finite element analysis software ABAQUS, the nonlinear finite element model analysis of the specimen with equal size is carried out, and the results are compared with the test results of each specimen. The analysis shows that the wall plate has a large stiffness and the shear capacity of the inclined section is larger. The space steel wire grid wall board has good ductility and seismic energy dissipation ability.
【学位授予单位】：济南大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU398

【相似文献】