Under repeated loading, the strength and rigidity of connection degrade while the shear resistance increases with connecting rods and with connection width, and works by degraded MDCC and dowel action of connecting rods.

• 反复荷载作用下,接缝强度及刚度退化,脆裂后的接缝受剪承载力通过削弱的斜压杆机制和接合筋的销栓作用表现出来,其大小随接缝宽度的增大而增大,随接合筋直径的增大而增大。