(兰州理工大学土木工程学院，兰州 730050)

［摘要］根据某四层砖混结构半幢楼下沉、倾斜、扭转以及墙体严重开裂等现象，应用工程概念(如结构变形协调原理等)，采用单排千斤顶并用人工操作方式将半幢楼成功顶升纠倾，证明该技术能够应用于无圈梁无构造柱整体性较差的砖混结构。

［关键词］砖混结构；顶升；纠倾；裂缝

A brick-and-concrete building rectification study and application with lift-up methodSong Yu, Dang Xinghai, Luo Weigang(Civil Engineering College of Lanzhou University of Technology，Lanzhou 730050, China)

Abstract:Based on analysis of subsidence, inclination, torsion and wall cracks for a four-layer brick-and-concrete building, several engineering concepts such as structure deformation coordination etc. are considered. The lift-up method with hydraulic jack was used during rectification process. And the successful complication of the rectification scheme application for the building indicated that lift-up method with jack could be implicated in rectification repairing of low integrity brick-and-concrete structure without ring beams and concrete-block walls.

Keywords:brick-and-concrete structure; lift-up method; rectification; crack