众所周知,混凝土构件中受力钢筋绑扎搭接接头传力,基本是靠钢筋在混凝土中的锚固完成的,这种锚固作用相对于整根钢筋来说,无疑有所减弱。为此,施工时除要求搭接长度比其锚固长度有所加长外,规范还规定对其搭接区段的梁柱箍筋应适当加密,以保证纵向受力钢筋的可靠传力和结构安全。一、绑扎搭接接头受力分析 As we all know, the concrete components in the force of steel lashing lap joints transmission force, basically by the steel reinforcement in the anchoring of concrete completed, this anchoring effect relative to the entire root steel, undoubtedly weakened. For this reason, in addition to the requirement of lap length longer than the length of its anchorage, the code also stipulates that the lapped stirrups in the lapped sections should be properly encrypted to ensure the reliable transmission of force and structural safety of longitudinally stressed steel bars . First, lashing lap joints force analysis