大跨度悬挑梁的鉴定与加固设计

Appraisement and Strengthening of Long Cantilevers

北京某综合楼,因悬挑梁设计和施工存在一些缺陷,为消除安全隐患对相应结构进行了检测鉴定与加固设计。根据实际需要,有针对性地选用多种加固方法(钢拉杆、粘钢、钢支撑和钢支座)来加固悬挑梁。在加固方法中,重点介绍钢拉杆加固悬挑梁的设计过程。

Due to the flaws of design and construction in cantilevers, test inspection, appraisement and strengthening of the structure are made in order to remove safely hidden trouble. According to actual requirements, some strengthening methods such as steel tie rod, sticking steel, steel brace and steel bearing are chosen to reinforce the cantilevers. The design process that the cantilevers are strengthened by the method of steel tie rod is introduced in detail.