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学习了《(建筑技术通讯·建筑结构》1978年第4期“钢筋砼装配式框架整浇梁柱节点的设计”一文后,本人对整浇粱柱节点中梁主筋的合理构造引起了重视。在上海地区,由于多层及钢模的普及,框架体系或框剪体系采用预制梁板现浇柱(或剪力墙)的结构施工方案占多数。凡此类节点均遇到梁主筋如何合理安排的问题(预制短柱整浇节点也有同样情况)。由于预制梁一般均采用叠合花蓝梁,而梁的上部钢筋在节点核心区是直通的,因此主要是处理好梁下部主筋在节点核心区的锚固问题。根据[1]文所做试件试验的二种情况:一见图1a及图
After learning “(Architecture Technology, Communications, Building Structures, 1978, No. 4), ”Design of Reinforced Concrete Prefabricated Frames with Cast-in-place Beam-column Joints", I have caused the rational construction of the center-beam main reinforcement of the full-mechanized post-column joints. In Shanghai, due to the popularity of multi-layers and steel molds, most of the framework construction or frame-shearing systems use prefabricated cast-in-situ cast-in-place columns (or shear walls) for the majority of structural construction programs. The problem of how to arrange it reasonably is also the same for the prefabricated short column pouring and pouring nodes.Because the prefabricated beams generally use superimposed blue-blue beams, and the upper steel bars of the beam are straight through in the core area of the nodes, it is mainly to handle the lower main beams of the beams. The problem of anchorage in the core area of the node.According to [1], two cases of test specimens are done: See Figure 1a and Figure