Performance Properties Of Steel Reinforced Concrete Truss And Trusses In The Conversion Layer Structure Analysis

In recent years, the rapid development of high-rise buildings, building toward the body complex, features a variety of mixed-use development. Speaking from the functional requirements of the building, the upper part of the axis of the arrangement and requires more of the wall of a small bay, the lower column grid requirements, less the wall in order to provide the greatest possible freedom and flexibility of interior space. Therefore, in order to meet the functional requirements of the building, the arrangement structure abnormalities often require design, in order to realize this arrangement, it is necessary to set a special structure between different floors of the upper and lower portions, so that it can pass down the upper structure to withstand various loads, and reliable delivery to the lower part of the structure, which can play a role in the structural transformation floor, called the conversion layer. Steel reinforced concrete truss conversion layer is a new conversion layer structure, light weight, high capacity, simple construction and low cost.On a real project (with steel reinforced concrete truss conversion layer) research and analysis, focusing on the analysis of the mechanical properties of the overall model and truss members truss conversion layer structure factors this paper. The main content of the following research areas:1.First designed using finite element structural analysis software MIDAS/GEN, respectively, of steel reinforced concrete truss conversion layer structure, reinforced concrete truss conversion layer structure were compared and analyzed to obtain the structure of the natural period of the two models, seismic response force and each model of each truss rod connected to the frame and axial forces pillars, analysis and comparison of the difference between the two. Second, the structural model of modal response spectrum analysis, combined with the displacement structure floor layer, interlayer displacement, inter-story drift and floor shear curve analysis has been the position of the weak layer structure, it should be noted in the structural design strengthen the weak layer lateral stiffness.2.ABAQUS finite element analysis software to convert truss force performance comparison analysis, the main research content is changing oblique abdominal truss rod cross-sectional dimension, the impact of concrete strength and structural steel ratio in the horizontal and vertical loads. As can be seen improving yield load of concrete strength grade structure and ultimate load, but has little effect on ductility, while major changes oblique abdominal truss rod steel ratio effect on ductility.3.Using the finite element structural design analysis software MIDAS/GEN, for conversion layer with steel reinforced concrete truss structure pushover (Pushover) analysis, using the capacity spectrum method for converting layer structure with steel reinforced concrete high-rise building complex to assess the seismic capacity. Plastic analysis of structures under static monotonic loading, revealing the actual yield of the structure in case of earthquake mechanisms in rare under the order of the plastic hinge, and analyzes the weak position of this kind of structure designed for the type of structure made some comments.