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介绍闭合托架技术在建筑结构改造中的应用实例 ,闭合托架利用了原有基础 ,不需增设新的柱基础。托架梁为钢骨混凝土和预应力混凝土与原砖墙组成的组合梁 ,利用预应力技术可起到加固与卸荷合二为一的作用 ,使后加结构主动参与受力 ,改变了原有结构应力过大、后加部分应力滞后的现象。
The application of closed bracket technology in the structural transformation of buildings is introduced. The closed bracket takes advantage of the original foundation without adding a new column foundation. The bracket beam is a composite beam composed of SRC and prestressed concrete and the original brick wall. The use of prestressing technology can play a role of combining reinforcement and unloading, so that the post-added structure can actively participate in the force and change the original structure Stress is too large, after adding some of the phenomenon of stress lag.