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在建筑行业飞速发展的过程中,如今,开始将柱帽式筏板基础广泛应用到具有较好地质条件的框架结构地下室中,如果对防水有较高要求,那么就需要将防水层作于筏板下砼垫层上,因为柱帽是独立基础,与相邻筏板平面内有较大的刚度差,没有同步的沉降变形,还有应力集中现象出现于刚度突变的交接处,开裂和渗漏问题进而出现。针对这种情况,就需要科学开展柱帽式筏板基础地下式结构设计工作。
In the course of the rapid development of the construction industry, nowadays, beginning to apply the basement hatch raft foundation to the basement of a frame structure with better geological conditions. If there is a high demand for waterproofing, the waterproof layer needs to be made into a raft Under-slab concrete cushion, because the column cap is an independent foundation, there is a big difference in rigidity with the adjacent raft plane, there is no synchronous settlement deformation, and the stress concentration occurs at the junction where the rigidity changes suddenly, cracking and seepage The leak problem then appears. In response to this situation, it is necessary to carry out scientific research on the substructure design of the base of the column cap raft.