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该工程新的使用功能需将原结构居中的1根框架柱拔掉。设计中采用混凝土框架梁、柱增大截面法,同时框架梁双向跨度变大且形成十字梁。施工中遵循“先加固、后拔柱”的原则,首先对基础注浆加固,对梁、柱分别采用水泥基灌浆料、混凝土增大截面,再行拔柱。
The new function of the project needs to pull out a framework column with the original structure. In the design, the concrete frame beam and the column are adopted to increase the cross-section method, and the two-way span of the frame beam becomes larger and a cross beam is formed. In the construction, following the principle of “first strengthening and then pulling out the post”, the grouting should be strengthened first, and the grouting material should be used for beams and columns respectively.