MSTCAD与SAP2000对带弹性支座的网架结构整体对比分析

Integrated Modeling Analysis on Space Truss and Comparison between MSTCAD and SAP2000

网架结构与下部结构通常分开建模,但有时为了考虑下部结构对上部结构的影响,会整体建模。本文通过MSTCAD与SAP2000网架结构整体建模并将计算结果对比,发现MSTCAD整体建模结构静力计算中存在的问题,进而指出结构整体建模需要注意的问题,即关注软件的鲁棒性。通过网架与下部结构整体建模与网架结构独立建模计算结果的对比,提出提高网架结构鲁棒性的方法。

The space truss structures are modelled separately from the substructure. Sometimes we model the whole structure to consider the interaction of these two substructures. In this paper I modelled the whole structure in both SAP2000 and MSTCAD to analysis space truss structure static strength. It turned out the calculation in MSTCAD was totally wrong. Attention should be paid to model the whole structure in some commercial software. The more complex of the structure, the low robustness of the results we will get. I also render the method to im- prove the robustness of the whole space truss structure.