中文摘要：

与底部凸缘磨擦设备(BFFD ) 抵抗框架的钢时刻的一种新类型被开发了提供自我集中的能力和精力驱散，并且在地震下面减少永久变丑。这份报纸与 BFFD，在横梁列接口的差距洞 /closing 被由于磨擦与压缩唯一的材料性质，和精力驱散使用一些零长度的元素在模仿论述自我集中的横梁列连接的数字模拟被使用模仿与指定 hysteretic 捆绑元素行为。特别地，在 BFFD 靠着 slotted 板适用的磨擦门栓的效果被建模，以便侧面的力量和磨擦力量的损失的增加能由于适用的门栓被考虑。在为地震工程模拟(OpenSees ) 的开的系统的平行橡皮完美地塑料的差距(ElasticPPGap ) 材料与预定义的差距被使用指定每个螺栓开始了适用和把僵硬弄弯的相应增加的顺序。在 OpenSees 的 MinMax 材料被用来指定 ElasticPPGap 材料的紧张的最小、最大的价值。为了考虑磨擦的损失，由于门栓适用强迫，很多平行 hysteretic 材料被使用，并且在顺序的这些材料的失败模仿了磨擦力量的渐渐的损失。使用建议数字模型获得的分析结果被讨论并且在周期的装载并且分别地的地震装载下面与测试相比结果。

英文摘要：

A new type of steel moment resisting frame with bottom flange friction devices （BFFDs） has been developed to provide self-centering capacity and energy dissipation, and to reduce permanent deformations under earthquakes. This paper presents a numerical simulation of self-centering beam-column connections with BFFDs, in which the gap opening/closing at the beam-column interfaces is simulated by using pairs of zero-length elements with compression-only material properties, and the energy dissipation due to friction is simulated by using truss elements with specified hysteretic behavior. In particular, the effect of the friction bolt bearing against the slotted plate in the BFFDs was modeled, so that the increase in lateral force and the loss of friction force due to the bolt bearing could be taken into account. Parallel elastic-perfectly plastic gap （ElasticPPGap） materials in the Open System for Earthquake Engineering Simulation （OpenSees） were used with predefined gaps to specify the sequence that each bolt went into the bearing and the corresponding increase in bending stiffness. The MinMax material in OpenSees is used to specify the minimum and maximum values of strains of the ElasticPPGap materials. To consider the loss of friction force due to bok bearing, a number of parallel hysteretic materials were used, and the failure of these materials in sequence simulated the gradual loss of friction force. Analysis results obtained by using the proposed numerical model are discussed and compared with the test results under cyclic loadings and the seismic loading, respectively.