Abstract The design methodology of a new Double Shear Bolted Bracket (DSBB) moment connection was introduced in Part I of this research. The DSBB connection is a bolted bracket connection that profits from double shear performance of stem bolts. In Part II of this research, a response evaluation is conducted by designing and modeling various parametric study specimens to evaluate the efficiency of the proposed design method. In the finite element modeling of the parametric study specimens, the adequacy of size and thickness of the bracket flanges, stems, and stiffeners, and the adequacy of bolt diameter of the bolted bracket are evaluated. In order to check the qualification of the DSBB connection based on AISC 358–18 connection code criteria, the double-tee and end-plate prequalified moment connections in the aforementioned code are also considered as reference connections beside the DSBB connection. For all specimens, the cyclic responses are provided and compared. In the following, the energy dissipation in the beam and connection of the specimens is compared. Eventually, stress state indices including rupture index and plastic equivalent strain index, in the defined critical lines and points of all specimens are calculated and discussed. Comparing the performance of the DSBB connection specimens with the end-plate and double-tee connections indicates that the risk of failure, concentration of stresses and strains, and out of plane and buckling deformations in the DSBB connection are less than that of the prequalified end-plate and double-tee connections; therefore, DSBB can be a qualified moment connection.

中文翻译：

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双剪螺栓支架力矩连接，第 2 部分：四螺栓配置响应评估

摘要 本研究的第一部分介绍了一种新型双剪螺栓支架（DSBB）弯矩连接的设计方法。DSBB 连接是一种螺栓支架连接，它受益于杆螺栓的双剪切性能。在本研究的第二部分，通过设计和建模各种参数研究样本来进行响应评估，以评估所提出的设计方法的效率。在参数化研究试件的有限元建模中，评估了支架翼缘、立柱和加强筋的尺寸和厚度是否足够，以及螺栓连接支架的螺栓直径是否足够。为了根据 AISC 358–18 连接代码标准检查 DSBB 连接的资格，除 DSBB 连接外，上述规范中的双三通和端板预认证弯矩连接也被视为参考连接。对于所有样本，提供并比较了循环响应。在下文中，比较了梁中的能量耗散和试样的连接。最后，计算和讨论了所有试件在定义的临界线和点上的应力状态指数，包括断裂指数和塑性等效应变指数。将 DSBB 连接试样与端板和双 T 形连接的性能进行比较表明，DSBB 连接中的失效风险、应力和应变集中以及平面外和屈曲变形的风险小于预合格端的-板和双三通连接；所以，