哈尔滨商业大学学报（自然科学版）2025，Vol.41Issue(2)：184-191,8.
梁柱节点螺栓连接力学性能的精细数值分析
Numerical analysis for mechanical behavior of high-strength bolted beam column joints
摘要
Abstract
To study the mechanical behavior of the high-strength bolted beam column joints,the ABAQUS was adopted to establish a refinedfinite element model,of the high-strength bolted connections,which was reported by the authors of this paper before.Based on the thread profile equations of bolts and nuts,material nonlinear characteristics,damage models of bolt and steel were incorporated in the simulation to better understand the behavior of the bolted connector.The simulation results indicated that failure mode,load-displacement curve and peak load of numerically simulated high-strength bolted connection was basically consistent with the test results.The pretension force of the bolt decreased during the loading process,but in the load transmittal stage the pretension force had a gradually increasing trend as the increase of the load.The bolt shank at the skin and splice plates and the plates within one bolt diameter around the bolt hole produced a stress concentration phenomenon.The failure of bolt originated the bolt shank at the skin and splice plates,and the failure mode was the shear failure of inclined section of bolt shank with under the pretension force and the shear load.关键词
高强螺栓/螺栓连接/螺栓预紧力/精细有限元模型/数值模拟/力学性能Key words
high-strength bolt/bolted connection/bolt pretention/detailed finite element model/numerical analysis/mechanical performance分类
土木建筑引用本文复制引用
薛筱蕾,徐芊,方欣欣,陈月香..梁柱节点螺栓连接力学性能的精细数值分析[J].哈尔滨商业大学学报（自然科学版）,2025,41(2):184-191,8.基金项目
福建农林大学金山学院青年教师科研基金(kx230404) （kx230404）
