附设粘滞阻尼器的混凝土仿古建筑梁-柱节点恢复力模型试验研究  

THE EXPERIMENTAL RESEARCH ON THE RESTORING FORCE MODEL OF LINTEL-COLUMN JOINTS OF CONCRETE ARCHAIZING BUILDINGS WITH VISCOUS DAMPERS

作　　者：隋 薛建阳[1] 董金爽 张锡成[1] 谢启芳[1] 白福玉[1] 无 SUI Yan;XUE Jian-yang;DONG Jin-shuang;ZHANG Xi-cheng;XIE Qi-fang;BAI Fu-yu(School of Civil Engineering, Xi′an University of Architecture and Technology, Xi’an 710055, China;College of Civil Engineering and Architecture of Hainan University, Haikou 570228, China;National Level Civil Engineering Experimental Teaching Demonstration Center, Xi’an University of Architecture and Technology, Xi’an 710055, China;National Level Civil Engineering Virtual Simulation Experimental Teaching Demonstration Center, Xi’an University of Architecture and Technology, Xi’an 710055, China;Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education, Xi’an 710055, China)

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]海南大学建筑工程学院,海口570228 [3]土木工程国家级实验教学示范中心,西安710055 [4]土木工程国家级虚拟仿真实验教学示范中心,西安710055 [5]结构工程与抗震教育部重点实验室,西安710055

出　　处：《工程力学》2019年第B06期44-53,共10页Engineering Mechanics

基　　金：国家自然科学基金项目(51208411,51508454);陕西省自然科学基础研究基金项目(2016JQ5060);陕西省科学技术研究发展计划项目(2013KW23-01);陕西省教育厅科研计划项目(15JK1444)

摘　　要：为了研究附设粘滞阻尼器的混凝土仿古建筑梁柱节点的恢复力模型,设计制作了4个试件,进行了快速动力加载试验,对试件的受力过程和破坏形态进行观察和记录。基于对试件在受力过程中表现出的典型特征的研究,并考虑加载动力效应,提出了试验试件的四折线骨架曲线模型及恢复力模型,并将其与试验结果进行了对比分析。研究结果表明:试件的从开始加载到最终发生破坏可分成开裂、屈服、极限、破坏4个阶段。试件从屈服阶段开始,随着加载的进行产生了明显的加载和卸载刚度退化及卸载残余变形;提出了四折线骨架曲线模型,其结果与试验结果的骨架曲线吻合度较高;并采用所提出的四折线恢复力模型计算得到了滞回曲线,将其变化趋势与试验滞回曲线的进行对比可以发现二者具有较高相似度,该模型可以较好地描述附设粘滞阻尼器的混凝土仿古建筑梁柱节点的滞回性能。To study the restoring force model of the concrete archaizing buildings with lintel-column joints and viscous dampers,four specimens were fabricated and tested under dynamic loading.The loading process was observed and failure modes were recorded.Four-line models of skeleton curves and restoring force models considering the dynamic effects of loading are presented based on the research of typical characteristics of the specimens under loading,and are compared with the experimental results.The results show that the loading process of the specimens can be summarized by four stages of initial cracking,yielding,ultimate and failure.As the load continues,the loading and unloading stiffness degenerate obviously after the stage of yielding.The residual deformation appears in the hysteretic curves after unloading.The presented four-line models of skeleton curves agree well with the experimental results.By using the proposed four-fold restoring force model,the hysteretic curve is calculated and compared with the experimental hysteretic curves in terms of the change trend.It can be found that the two have high similarity.The hysteretic behavior of the concrete archaizing buildings with lintel-column joints and viscous dampers is described better by the four-line restoring force model.

关 键 词：混凝土仿古建筑 粘滞阻尼器 骨架曲线 恢复力模型 动力荷载 

分 类 号：TU311[建筑科学—结构工程]