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本文根据《建筑抗震规范(GB50011-2010)》6.4.7条所提出的解决连梁超筋的新方法——“跨高比较小的高连梁,可设水平缝形成双连梁、多连梁或采取其他加强受剪承载力的构造。分缝连梁是对连梁中部全长设置1道或几道水平缝,大大减少了连梁的抗弯刚度及受力,可以有效避免连梁超筋和截面超限”的提法,通过对普通梁的破坏形态和双连梁破坏形态的对比,分析双连梁的工作原理及在实际工程中的应用。
In this paper, according to “Building seismic code (GB50011-2010)” proposed in Article 6.4.7 of the new method of connecting beam over tendons - “span of relatively small high even beam can be set horizontal seam to form double beams, multiple beams Or take other structures to enhance the shear capacity of the joint beam is to connect the middle of the entire length of the beam set 1 or a few horizontal seam, which greatly reduces the beam bending stiffness and force, which can effectively avoid the beam Bars and section overrun ”, through the comparison of the failure mode of common beam and the failure mode of double beam, the working principle of double beam and its application in practical engineering are analyzed.