L形高层建筑下大底盘框架厚筏基础反力和变形试验研究

室内大型模拟试验表明,给定几何尺寸的L形高层建筑下的筏基变形特征和基底反力分布规律是以L形的拐角附近为中心向四周扩散,但地基反力的扩散范围只有到裙房两跨的位置。两翼端部之间的裙房部分筏板受双向荷载的影响,局部倾斜较大,是容易发生破坏的区域。

Experimental Study on Contact Pressure and Deformation of the Thick Raft with Large Area Frame Structure under a L-Shaped Tall Building

Simulated tests indicate that the deformation center and contact pressure center of the thick raft foundation under the vertical load of L-shape tall building with confirmed dimensions are near the corner of the L-shaped and spread around.The contact pressure can be transferred to only two spans of annexes. The local inclination of the raft foundation under the annexes between two wings of the L-shaped tall building is biggish which is affected by bi-directional load action.The failure would happen in those zones.