Study On Curve Grid Design Application In Practical Engineering

This paper firstly introduce the design theory of grid structure , main structural forms and development trend ; By comparing the grid structure in the actual project , By using structural analysis software MSTCAD, we can set up the overall grid model, we also can analyze the internal force and model of the grid structure through the finite element analysis software ANSYS, and then we will summarize the results.The results of the ANSYS software clearly reflect the axial force of rods, stresses and displacements of the grid structure?Comparing the results obtained from the MST analysis,we can find the two are basically the same conclusions. It proves the correctness of the analysis and design of the case in this paper. So the MST structure analysis software is completely applicable to the design of this type of grid structure. The results conform to the requirements of current building codes.The grid structure was analysised on the seismic performance by using the response spectrum analysis as well as the dynamic analysis process.Which mainly includes the following parts:1? Long-span truss roof of the stadium is analysised on modal method,in order to calculate the vibration modes of the structure, identify its dynamic characteristics as well.2? The grid structure was analysised on seismic response method,which can get to know the impact on its structural displacement and internal forces when sufferd one-dimensional seismic and multi-dimensional seismic action.We can obtain that in larger curvature at the grid bars when subjected to seismic action on the direction of the curve, the internal forces is different from the others, it wiil appear mutation. So we need a detailed calculation of this regional structure, in order to ensure the structural safety of the work...