后撑钢柱临时支撑加固技术的设计与施工

摘要

针对地下室钢筋混凝土顶板结构承受超大荷载而容易引起破坏的现象,提出一种通过用后撑钢柱对钢筋混凝土顶板结构进行临时支撑加固的新方法,包括加固技术的技术方案与基本原理、钢柱安装方法、施工工艺和步骤等,并对加固后的地下室顶板结构承载力进行了校核.该技术施工简便、安全可靠、速度快、造价低.%Based on the phenomenon that ceiling structure of reinforced concrete basement can easily be destroyed by overweight load, the author puts forward a new method of constructing technology for temporary supporting and strengthening of ceiling structure of reinforced concrete basement with back support steel columns, which includes technical schemes and basic principles of strengthening, installing methods of steel columns, construction technology and procedures, and it checks the weight-bearing capacity of ceiling structure of reinforced concrete basement. The construction technology is simple, safe, fast and low cost.