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工业与民用建筑常常采用交叉条形基础,以适应地基软弱和地基土层分布不均匀的需要,这也是多层建筑物的抗震措施之一。实际工程中常常会遇到一些基础是受变形控制的情况。对于这种情况往往不必采用筏片基础,交叉条形基础便显示出既具有较大刚度,又节省材料的优点。本文对这种基础用有限元法分析,在文献[1]的基础上推导了变弹簧常数地基上变刚
Industrial and civil buildings often use cross-bar-shaped foundations to meet the needs of weak foundations and uneven distribution of foundation soil. This is also one of the measures for anti-seismic construction of multi-storey buildings. In the actual project, it is often encountered that some of the foundations are controlled by deformation. For this situation, it is often not necessary to use a slicing base. Cross-striped bases show the advantages of both greater stiffness and material savings. This article analyzes this basic method using the finite element method. Based on the literature [1], it is deduced that the variable spring constant is changed to