既有建筑结构改造加固浅议

DISCUSSION ON RENOVATIONS AND REINFORCEMENTS OF EXISTING BUILDING STRUCTURES

为了研究按89系列设计规范设计的结构如何进行加固设计,文中根据新旧设计规范体系对结构设计的规定,以某办公楼改造加固设计项目为例,介绍了怎样进行结构改造加固设计。文中对比了结构按89系列规范和10系列规范在结构整体指标计算,梁、柱构件承载力计算两方面的差异。通过对新旧荷载梳理.计算方式调整、改变用材并减轻构件自重等方面阐述了改造加固设计的思路和方法,为此类结构改造及加固提供了借鉴。

Taking the renovation and reinforcement design project of an office building as the case, strengthen methods for the structure designed according to 89 series design code were investigated according to the old and new design code systems. The difference of the whole index calculation, and the bearing capacity calculation of beam and column members according to the 89-series code and the 10-series code were compared. This paper demonstrates the reconstruction and reinforcement designs by the load classification, the calculation method adjustment, the material change, and the weight reduction of components, which may provide a reference for such structural transformation and reinforcement.