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随着高层建筑的迅速发展,柱梁节点布筋更加密集,混凝土浇筑密度难于保证(特别是采用绑扎搭接),影响应力传递,致使结构受荷时过早出现节点裂缝,引起建筑物结构性破坏,为了提高结构抗震性能,保证钢筋在其延长方向与混凝土形成整体结构,钢筋混凝土设计规范建议钢筋接头优先采用焊接接头。目前,现场施工中粗钢筋的接头焊接常采用电
With the rapid development of high-rise buildings, the studs are more densely arranged, the concrete pouring density is difficult to guarantee (especially by lashing lap), affecting the stress transfer, resulting in premature node cracks when the structure is subjected to load, causing the structure of the building In order to improve the seismic performance of the structure and ensure that the steel bars form an integral structure with the concrete in its extending direction, the reinforced concrete design specifications suggest that the welded joints be preferentially adopted for the steel bar joints. At present, the construction of the joints in the crude steel often use electricity welding