托换梁加固技术在砖混结构改造中的应用

Underpinning Beam Reinforcement Technology Applied to the Retrofit of Brick and Concrete Composite Structures

在砖混结构中,常由于使用功能的改变需要对墙体进行拆除,并设置托换梁以承担荷载。文章结合工程实例阐述了托换梁结构的设计,包括托换形式的选择及托换结构的计算,并对托换梁加固技术的具体施工过程进行了简要的论述,阐述了托换梁加固技术的具体施工工序,对主要的施工要点进行了介绍,强调在托换梁加固施工中应重视施工方案的合理性及科学性,确保满足强度、刚度以及稳定性等方面的要求,保证工程安全。

In brick and concrete composite structures, the walls are commonly removed and temporarily supported by underpinning beam due to change of their functions. Through the practical engineering case, the design of under-pinning beam are elaborated in this paper, including the selection of underpinning beam and the calculation of un-derpinning structural system. The construction procedures are also briefly discussed and the key points during con-struction are highlighted. It is emphasized that the rationality of construction plan during underpinning beam rein-forcement should be attached more attention to satisfy the requirement of strength, stiffness and stability so as to en-sure the safety.