Anti-seismic Mechanical Performance Research Of Yielding Energy Dampening Partition

During the earthquake, the building structure will produce deformation. Because the non-structural elements such as walls, infill walls are with the characteristic of low stiffness,thus the integrity and deformation ability of those non-structural elements are poor. The non-structural elements can not cause coordinated deformation with structural elements during the earthquake, and the non-structural elements are prone to damage, or even collapse, causing serious casualties and huge economic losses. Therefore, it is important to improve the seismic performance of non-structural elements.Energy dissipation damping technology serving as a safe, effective and economic method for aseismatic engineering is rapidly developed in recent years. This method completely changes traditional anti-seismic idea of "enhanced", and this method designs some of the main structure into non-structural elements. Energy dissipation damping technology could consume the earthquake energy by friction and shear deformation, thereby achieving the purpose of vibration control by reducing the main structure of the seismic response and the damage. The purpose of this paper is to introduce the idea of energy dissipation damping structures of structural components, and this paper studied a yield energy partition by adding mild steel sheet which could absorb and waste the earthquake energy in the structure, thereby protecting the main structure.Firstly, this experiment was divided into 3 groups based on the different the mild steel sheet number. The 3 groups contain 3, 4 and 5 pieces of soft steel slice, respectively.And then this paper studied amplitude repeated load 3 groups of test components according to certain displacement amplitude repeated loading. In the process of loading, the yield deformation of mild steel slice was observed and each specimen hysteresis curve data were obtained, simultaneously. Thirdly, simulating partition with column element with the IDARC program. Based on the fitting of simulated data and experimental data, it could easily get the initial bending stiffness, yield bending stiffness parameter relationship between the number of mild steel sheet and IDARC hysteresis model. Finally, the partitionlayout in 3 across 3 and 6 layer 3 framework across two examples to analyze the partition in the framework of the cushioning effect and the partition wall was decorated in layer bottom and each layer bottom two kinds of distribution mode, and partition contains different numbers of mild steel.By comparing the maximum drift, the maximum interlaminar shear force, natural vibration period, the hinge mode and damage index of an example framework under earthquake, it is found that partition has the excellent cushioning effect, and more number of mild steel in partition, the stronger the vibration resistance. Shock absorption effect of the framework in each floor layout partition scheme is superior to decorate in the underlying partition scheme only.