新型减震梁柱节点及其框架结构抗震性能研究  

Study on Seismic Behavior of New Type of Beam Column Joint and Its Frame Structure

作　　者：田旭 王德斌 范国玺[3] 王世鹏 张皓[4] TIAN Xu;WANG Debin;FAN Guoxi;WANG Shipeng;ZHANG Hao(School of Civil Engineering,Dalian Jiaotong University,Dalian 116028,China;Yingkou Institute of Techology,Institute of mechanical and power engineering,Yingkou 115000,China;College of Engineering,China Ocean University,Qingdao 266100,China;College of Civil Engineering,Shenyang Construction University,Shenyang 110168,China)

机构地区：[1]大连交通大土木工程学院,辽宁大连116028 [2]营口理工学院机械与动力工程学院,辽宁营口115000 [3]中国海洋大学工程学院,山东青岛266100 [4]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《大连交通大学学报》2021年第3期82-86,93,共6页Journal of Dalian Jiaotong University

基　　金：大连市青年科技之星资助项目(2018RQ72)。

摘　　要：提出了一种新型减震节点型阻尼器,提高了节点及框架结构的抗震性能,并采用多尺度建模方法结合已有试验结果验证了其准确性,进而研究新型减震节点型阻尼器的抗震性能,并将其应用于钢筋混凝土平面框架结构.研究结果表明:设置新型减震节点型阻尼器后节点承载能力显著提高,耗能曲板环向开孔厚度为10和20 mm时梁柱节点的承载力较未设阻尼器的节点承载力分别提高8.3%和9.7%;将该新型减震节点型阻尼器应用于框架结构,能够有效降低结构的地震响应,当峰值加速度取为罕遇地震条件下的0.4 g时,耗能曲板环向开孔厚度设为1、2、4 mm时的有控结构顶点位移比无控结构分别减小53.8%、68.9%和70.4%,结构层间位移角最大值及底部剪力最大值均有明显减小.所提出的新型减震节点型阻尼器可有效降低结构的地震响应,为结构减震提供必要的参考和依据.A new type of joint damper is proposed to improve the seismic performance of joint and frame structure, and its accuracy is verified by multi-scale modeling method combined with the existing test results. The seismic performance of the new type of joint damper is studied and applied to the reinforced concrete plane frame structure. The results show that the load-carrying capacity of the beam column joint is significantly improved when the damper is installed, and the load-carrying capacity of the beam column joint is 8.3% and 9.7% higher when the thickness of the circular opening of the energy dissipating curved plate is 10 mm and 20 mm respectively than that of the joint without damper. When the damper is applied to the frame structure, the seismic response of the structure can be effectively reduced. When the thickness of the circular opening of the energy dissipating curved plate is 1, 2 and 4 mm, the peak displacement of the controlled structure is 53.8%, 68.9% and 70.4% less than that of the uncontrolled structure, and the maximum value of the displacement angle between the layers and the maximum value of the bottom shear force are significantly reduced. The new joint damper proposed in this paper can effectively reduce the seismic response of the structure and provide the necessary reference and basis for the structural damping.

关 键 词：梁柱节点 耗能 抗震性能 多尺度 有限元模型 

分 类 号：TU352.11[建筑科学—结构工程]