Low Multistory Steel Frame Wall Composite Structure Finite Element Analysis

In the traditional building structure, the wall is only used for maintenance structure. Studies have shown that the wall can be filled with structural system to improve the overall strength and stiffness of the structure. Steel framework composite wall structure is a new type of dual system,composite wall is the main component to lateral resisting element, the second line of defense resisting lateral force is steel frame, this structure combines the characteristic of the ductility of steel frame and the stiffness of combined wall.In this paper steel framework-fiber reinforced concrete orifice plate composite structure is as the objection and be analysed the lateral load capacity by using the finite element software SAP2000.The main work is as follows:(1) introduce four common kinds of wallboards which are fiber reinforced concrete orifice plate, HaiRong composite wallboard,ASA plate, chengdu galaxy lighter partition panel and their approach the size、number、type、material properties and characteristics,then compare the advantages and disadvantages of the four wallboards.(2)use SAP2000to establish a structure model of steel framework-fiber reinforced concrete orifice plate composite structure, and use the static nonlinear analysis method-Pushover to analyse the lateral load resistance, ultimate strength and failure modes. And then compare with light-gauge steel wall.(3) discuss the influence of the connection among the plates and height-width ratio of walls on steel framework-fiber reinforced concrete orifice plate composite structure’s lateral force resistance.After analysis and comparison,the following conclusion was got:the lateral load capacity of steel framework-fiber reinforced concrete orifice plate composite wall is higher than light-gauge steel wall; reinforcing the connection of plate can improve the lateral force resistance; the bigger height-width ratio, the smaller lateral loading capacity of the structure.This paper will provide certain theoretical reference and basis for the research and design of the steel framework composite wall structure.