钢筋套筒灌浆连接装配式剪力墙结构三层足尺模型子结构拟动力试验.pdf

第3卷第3,期3017年3月(
建筑结构学报 Journal of Building Structures
ol.38
文章编号:1000-6869(2017)03-0026-13
DOI:10.14006/j-jgxb.2017.03.003
钢筋套筒灌浆连接装配式剪力墙结构
三层足尺模型子结构拟动力试验
钱稼茹',韩文龙,赵作周,秦珩,张芸2,于劲,马涛',田东
(1.清华大学土木エ程安全与耐久教育部重点买验室,北京100084;
2.北京住总万科房产开发有限公司,北京100125;3,出京住宅建筑设计研究院有限公司,北京100055
4.北京市建筑设计研究院有限公司,北京100045)
摘要:为研究钢筋套筒灌浆连接装配式剪力墙结构的抗震性能,完成了1个3层足尺模型在不同强度地震作用下的子结构
拟动力试验,观察其彼坏现象,研究其滞回特性、变形能力、刚度退化和钢筋屈服次序等。结果表明:试验模型的破坏集中
在地震作用方向的连梁和窗下墙,连梁以弯曲破坏为主,窗下墙为剪切破坏,首层培技出现轻微的弯曲破坏;试验过程中
连梁纵筋、墙肢竖向钊筋及连粱箍筋依次受拉屈服,试验模型实现了“强墙肢彁连粱”及连梁“强剪弱弯”的设计目标;8度
多遇、设防和罕遇地震以及9度罕遇地震作用下,试验模型的抗側刚度分别降低约5%、20%、60%和80%,对应的最大层间
位移角分别为1/3341、1/899、1/268和1/1,以层问位移角为参数,结构的破坏程度分别为完好、轻微损坏、中等破坏和倒
場;“预制底板出筋”和“预制底板不出筋”的双向叠合楼板均具有良好的整体性和平面内刚度,均可起到水平刚性隔板作
用;墙体一字形截面竖向后洗段采用由2根U形钢筋组成的封闭箍代替普通箍筋具有可行性;预制夹心保混外墙的内、外
叶墙之问连接可靠,外叶墙不参与结构受力,结构设计时可不考点外叶墙的作用
关键词:装配式剪力墙结构;钢筋套筒灌浆连接:3层足尺模型;子结构拟动力试验;抗震性能
中图分类号:TU973.16T0317.1文献标志码:A
prefabricated concrete shear wall structure wi *nodel of
Pseudo-dynamic substructure test on a 3-story full-scale
rebars splicing by grout sleeves
QTAN Jiru HAN Wenlong ZHAO Zuozhou', QIN Heng ZHANG Yun, YU Jin",MA Tao, TTAN Dong
(1. Key Labwratory of Civil Engineering Safety and Durability of China Ministry of Education
Tsinghua University, Beijing 100084, China; 2. Beijing Wanke Co, Ltd, Beijing 100125, China;
3. Beijing Inslitute of Residential Building Design &Research Co, Ltd, Beijing 100055, China;
4. Beijing Institute of Architecture Design &Research Co, Ltd, Beijing 100045, China
Abstract: To study the seismic behavior of the prefabricated conerete shear wall structure with rebars splicing by
grout
sleeves, pseudo-dynamic substructure test on a 3-story full-seale model was performed under the excitation of
earthquake record. The cracks and damage phenomena of the test model were observed. Further analysis was
conducted to investigate the seismic behavior, such as the hysteretic characteristic, deformation capacity, stiffness
degradation and rebar yield order. The results indicate that cracks and damage of the lest model center on the coupling
beams and the window belly walls in the earthquake exeitation direction, characterized by bending failure in the
coupling beams, shear failure in the window belly walls and slight bending failure in the wall piers. The longitudin
rebars of coupling bcams, the vertical rebars of wall piers and the stirrups of coupling beams yield in turn, which
indicates that the design concepts strong wall pier, weak coupling beamand " strong shear, weak bending ' of
coupling beam are achieved. Under frequent earthquake, design earthquake and rare earthquake of seismic fortification
intensities eight, and rare carthquake of seismic fortification intensity nine, the lateral stiffness of the test model
decreases about 5%, 20, 60%o and 80, respectively, compared with the initial stiffness. The maximum inter
ory drilt ratios are 1/3 341, 1/899, 1/268 and 1/11 I respectively under the same load conditions, which shows that
基金项目;北京市科技订划(21010602231003)
作者简介:钱稼茹(1946-),男,江苏无锅人,教殺。E-mail:qianjr(@tsinghua.edu.cn
收稿E:2015年12月
26
万方数据