某“烂尾楼”上浮地下室结构加固处理  

Reinforcement of Floated Basement in An Incomplete Building

作　　者：杨建中 胡晨强 

机构地区：[1]深圳中建院建筑科技有限公司,深圳518000 [2]中信地产深圳投资有限公司,深圳518057

出　　处：《工程抗震与加固改造》2012年第5期121-125,共5页Earthquake Resistant Engineering and Retrofitting

摘　　要：某"烂尾楼"地下室由于上浮受损以及开裂和老化等问题需要加固,而且顶板覆土1.2m。设计以预应力锚索永久抗浮,并通过计算分析确定先加固梁后加固柱、分批覆土加载以及反复锁定锚索的施工思路。地下室锚索施工难度很大,需采取特殊工艺和措施。针对结构的不同部位和不同问题采取了环氧树脂或聚氨酯修复裂缝、粘贴纤维或钢板和加大截面等多种方法进行修复和加固。本工程最终取得良好的效果,为同类工程提供了良好的借鉴经验。There were many problems in an incomplete building, such as floated damaged basement, cracking and aging. The prestress anchor cable is adopted to anti-float permanently, and the construction sequences that reinforce beams and columns separately, earth- up in batches and tension twice by calculating and analyzing are proposed. The anchor cable construction is full of difficulties, which are solved by special techniques and measures. According to the different members and problems, the cracks are grouted with epoxy resin or polyurethane, strengthened with FRP, externally boned steel plate or reinforced concrete. The treatment is successful in this project, which offers a useful case study for future reference.

关 键 词：上浮地下室 开裂老化 抗浮锚索 覆土 修复加固 

分 类 号：TU746.3[建筑科学—建筑技术科学]