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  

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

作　　者：朱红波[1] 邸道怀[1] 

机构地区：[1]中国建筑科学研究院地基基础研究所,北京100013

出　　处：《建筑科学》2008年第1期27-30,18,共5页Building Science

摘　　要：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。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 comer 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.

关 键 词：模型试验 框架厚筏 L形主楼 变形特征 基底反力 

分 类 号：TU471.15[建筑科学—结构工程] TU973[建筑科学—土工工程]