装配式剪力墙新型水平连接装置的力学性能数值模拟-西安建筑科技大学学报（自然科学版）

文章信息/Info

Title:: Numerical simulation of mechanical properties of new horizontal connection device for prefabricated shear walls

作者:: 付重阳¹; 熊二刚¹; 胡勤斌¹; 张海荣¹; 徐涵²; 樊禹江¹; （1.长安大学建筑工程学院，陕西西安 710061；2.中冶长天国际工程有限公司土建设计分院，湖南长沙 410200）

Author(s):: FU Chongyang¹; XIONG Ergang¹; HU Qinbin¹; ZHANG Hairong¹; XU Han²; FAN Yujiang¹; （1.School of Civil Engineering, Chang′an University, Xi′an 710061, China;2.Civil Engineering Design Branch of MCC Changtian International Engineering Co., Ltd., Changsha 410200, China）

Keywords:: prefabricatd shear wall; horizontal connection device; bolt preload; hysteresis curve; finite element analysis

摘要:: 为了研究装配式剪力墙新型水平连接装置的力学性能，对两组不同螺栓数量的连接装置试验组进行了动态力学性能试验，并采用ABAQUS有限元软件对其进行相关数值模拟，进一步分析了较大预紧力对装置力学性能的影响.试验结果表明：通过增加螺栓数量和螺栓预紧力，可有效提升水平连接装置的耗能效果，但加载频率对其影响较小.通过分析有限元结果可知：装置最大水平力，耗能能力及割线刚度与螺栓预紧力呈近似线性增长趋势，与试验数据吻合较好；在较大预紧力情况下，各力学性能指标保持上升趋势，但由线性关系逐渐向非线性过渡的范围也随之增大.

Abstract:: In order to study the mechanical properties of a new type of horizontal connection device for prefabricated shear walls, dynamic mechanical properties of two groups of connection devices with different bolt numbers were tested, and the ABAQUS finite element software was used to simulate the dynamic properties of the connection devices. The test results show that the energy dissipation of the horizontal connection device can be effectively improved by increasing the number of bolts and the bolt preload force, but the loading frequency has little influence on it. The results of finite element analysis show that the relationship between the maximum horizontal force, energy dissipation capacity, secant stiffness of the device and the bolt preload is approximately linear, which is in good agreement with the test data. In the case of large preload, the mechanical properties display a rising trend, but the range of transition from linear relationship to nonlinear gradually increases.