有限元分析在钢网架屋盖结构设计中的应用研究

研究目的：研究ANSYS软件在钢网架屋顶结构设计中的适用性，分析钢网架结构设计参数的可行性。 研究方法：用ANSYS软件建立钢网架屋顶结构的有限元模型，结合该结构的实际受力状态、材料特性、几何特性及边界条件等相关参数，对模型进行加载计算和求解。 研究结果：通过对结构变形和内力两方面的检算，得到了钢网架屋顶结构的竖向变形值和结构中各杆件的轴力值。参照相关设计规范，该屋顶结构的变形和强度均满足规范要求。 研究结论：有限元分析在检算钢网架屋盖结构设计参数的可行性方面比较适用，直接利用有限元软件ANSYS建立有限元模型，输人相关计算参数，然后划分网格、加载、求解，最终可提取需要的相关力学参数。类比本算例，可将有限元软件ANSYS作为辅助工具应用于其他工程结构的参数设计与力学检算中。

Application Research on the Finite Element Analysis in Designing Steel Netlike Roof's Structure

Research purposes: The applicability of using ANSYS in designing steel netlike roof is studied and the feasibility of designing the steel netlike structural parameter is analyzed.Research methods:The steel netlike roof's finite element model is constructed by use of the software ANSYS.The model is loaded and calculated on the base of considering structural actual load,material property,geometry characteristic,boundary condition etc.Research results:The values of steel netlike roof's vertical displacement and the poles' axial force are gained by calculating the structural displacement and internal force.The roof's transmutation and intensity satisfy the demands of the correlative criterions.Research conclusions:The Finite Element Method is provided applicability in calculating steel roof's netlike designed parameter.Finite Element Method can be used directly in constructing finite element model,inputting correspond parameter,plotting out model's mesh,loading the model and solving the model.Finally the needed mechanical parameter is got.Similarly Finite Element Method can be used as an aided tool to design other engineering structural parameter and to calculate structural mechanical characteristics.