一、概述近年来,随着经济的快速增长,人们对建筑的需求量也迅速上升,许多原有的低层砖混房屋建筑已不能满足目前形势发展的需要。由于受生产力水平和经济实力的制约,迫切需要对现有的一些建筑物进行加层改造。加层改造工程具有不拆原有建筑,甚至不影响原有建筑的使用、施工周期 I. Overview In recent years, with the rapid economic growth, people's demand for construction has also risen rapidly. Many existing low-rise brick-and-mortar buildings can no longer meet the needs of the current situation. Due to the constraints of productivity and economic strength, there is an urgent need to upgrade some existing buildings. Adding layer reconstruction project has not demolished the original building, or even affect the use of the original building, the construction cycle