钢结构在托换技术中的应用

Application of Steel Structure in Underpinning Technology

结构托换是建筑物整体移位工程中的关键核心技术,作为一种新型托换加固技术,其在建筑物整体移位工程中的应用越来越广泛,详细介绍了钢结构在墙托换和柱托换技术中的应用。实际工程中框架柱托换荷载都比较大,而柱截面尺寸较小,托换要求较高,如何将柱传下来的竖向荷载托换到上轨道支撑体系上是柱托换技术的核心内容,重点给出了钢结构柱托换设计要点和计算公式。

The design of underpinning is the key technology of building integral shift (BIS) project, and as a new underpinning technology, steel underpinning is widespread in BIS project. The article introduces the applications of steel structure in wall and column underpinning. Loads of column underpinning in the project are heavier and the column sections are smaller, so the column underpinning request is higher. The key technology of the column underpinning is how to transfer the vertical loads from the column to the support system of the orbit. It introduces the design outlines and the formulas of column underpinning.