在吊车纵向冲击下,柱间支撑的顺向一肢受拉,逆向一肢受压,这与实测结果正好相反。因为吊车的垂直轮压必然同时对柱和基础产生压缩变形,再加上“空间大梁”的作用,引起柱间支撑内力的很大变化。本文对此做了了理论探讨,并提出了新的计算方法。 Under the longitudinal impact of the crane, the forward one limb of the column supports is pulled, and the opposite one is under pressure. This is contrary to the measured results. Because the vertical wheel pressure of the crane must inevitably produce compressive deformation of the column and the foundation at the same time, coupled with the role of the “space beam”, it causes a great change in the internal forces between the columns. This article has made a theoretical discussion and proposed a new calculation method.