为了评估限制 RC 列合成的横梁的地震行为,连接,五个内部关节在低周期的颠倒的负担下面被测试。凸缘的变弱的程度,饰钉的数字,并且是否增强削弱的凸缘在设计这五个关节被用作参数。失败特征, hysteretic 曲线,骨骼曲线,韧性,精力驱散,力量降级,和僵硬降级被分析。测试结果表明在关节的钢横梁凸缘等价于领带杆。削弱的凸缘导致了差的地震行为;然而,地震行为能被增加饰钉并且增强削弱的凸缘改进。联合的钢板箍,等价于马镫,没让步当失败负担被伸手取时,最大的负担什么时候被到达,但是让步关节与砍失败。增加饰钉类型关节并且增强凸缘类型连接保证好地震行为和遇见的工程要求。基于试验性的结果,关节的失败机制被讨论,并且关节的 shear 能力方程被介绍。
In order to evaluate the seismic behavior of confined RC column-composite beam joints, five interior joints were tested under low cyclic reversed load. The weakening extent of flanges, the number of studs, and whether to reinforce weakened flanges were used as parameters in designing these five joints. Failure characteristics, hysteretic curves, skeleton curves, ductility, energy dissipation, strength degradation, and stiffness degradation were analyzed. The test results revealed that the steel beam flanges in the joints were equivalent to the tie rod. Weakened flanges resulted in poor seismic behavior; however, the seismic behavior could be improved by increasing studs and reinforcing weakened flanges. The joint steel plate hoops, equivalent to stirrups, did not yield when the maximum load was reached, but yielded when the failure load was reached for the joints with shear failure. Increasing stud-type joints and reinforcing flange-type joints ensured good seismic behavior and met project requirements. Based on the experimental results, the failure mechanism of the joints was discussed, and the shear capacity equations of the joints was presented.