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我单位承建的一个锅炉房工程为框架结构,质检中发现1根框架柱,柱角处混凝土剥落,在梁高1000毫米范围内柱内无箍筋。为保证框架节点强度,根据设计部门意见,我们对上述框架节点采取了补强处理。一、补强处理方案框架梁端头留50～100毫米长度进柱,此部分混凝土保留,柱断面其余部分混凝土凿至柱有箍筋处。在柱主筋外侧沿梁高度,按原设计技箍筋间距@=200的要求,用冲击钻钻φ18圆孔,绑扎与原柱直径相同的φ8箍筋。箍筋接口处采用单面搭接焊,形成焊接封闭箍。将弯折柱主筋校直。检验合格
A boiler room project contracted by our company was framed. One frame column was found in the quality inspection. The concrete peeled off at the corners of the column. There was no stirrup in the column within a height of 1000 mm. In order to ensure the strength of the framework node, according to the opinions of the design department, we have reinforced the above-mentioned framework nodes. First, reinforcement treatment program frame beam head to leave the length of 50 to 100 mm into the column, this part of the concrete remains, the rest of the column section concrete chisel to the column stirrup place. Based on the beam height at the outside of the column main ribs, according to the requirement of the original design hoops spacing of @=200, drill φ18 round holes with impact drills, and bind the φ8 stirrups with the same diameter as the original column. The stirrup interface uses single-sided lap welding to form a welded closed hoop. Bend the main bars of the bent column. Qualified