STUDY ON BEARING CAPACITY AND SEISMIC PROPERTIES OF PREFABRICATED SKIP-FLOOR SHEAR WALLS WITH BOLTED CONNECTION
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摘要: 首先对25个预制穿层墙算例进行静力弹塑性分析,探究连接界面处的受力机理,其次分析轴压比、高宽比等因素对连接界面处螺栓受力的影响,提出螺栓受剪不均匀系数和螺栓受剪比例系数拟合式;最后采用拟合式设计了预制穿层剪力墙的螺栓,并通过拟静力低周反复试验模拟,与现浇穿层墙的抗震性能进行对比。研究结果表明:连接界面处的摩擦力占总剪力的比例多数超过80%;考虑螺栓受剪不均匀性设计的预制穿层墙抗震性能优良。Abstract: 25 prefabricated skip-floor shear wall models were established for static elastoplastic analysis to explore the load-bearing mechanism at the connection interface. Then, the influence of axial compression ratios, length-to-width ratios and other factors on the bearing capacity of the bolts at the interface were analyzed, and the fitting formulas for shearing unevenness coefficients of bolts and shear ratios of bolts were proposed. Finally, the bolts of the prefabricated skip-floor shear wall were designed according to the formulas, and the seismic performances of prefabricated and cast-in-place skip-floor shear walls were compared by quasi-static elastoplastic simulations. The research results showed that the frictional resistance at the connection interface in most cases accounted for more than 80% of the total shearing force, prefabricated skip-floor shear walls designed with consideration of the uneven shear of bolts were of excellent seismic performance.
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SEMELAWY M E, DAMATTY A E, SOLIMAN A M. Novel Anchor-Jointed Precast Shear Wall:Testing and Validation[C]//Proceedings of the Institution of Civil Engineers:Structures and Buildings, 2015, 168(4):263-274. SEMELAWY M E, DAMATTY A E, SOLIMAN A M. Finite-Element Analysis of Anchor-Jointed Precast Structural Wall System[C]//Proceedings of the Institution of Civil Engineers:Structures and Buildings, 2017,170(8):543-554. 王啸霆,李文峰,王涛,等. 采用螺栓连接的预制钢骨剪力墙拟静力试验研究[J]. 地震工程与工程振动, 2013, 33(5):167-175. 薛伟辰,古徐莉,胡翔,等. 螺栓连接装配整体式混凝土剪力墙低周反复试验研究[J]. 土木工程学报,2014, 47(增刊2):221-226. 薛伟辰,褚明晓,刘亚男,等. 高轴压比下新型预制混凝土剪力墙抗震性能[J]. 哈尔滨工程大学学报,2018, 39(3):452-460. 孙建. 新型全预制装配式剪力墙结构抗震性能研究[D]. 南京:东南大学, 2016. 周强. 装配式预制混凝土墙体抗侧性能试验研究与分析[D]. 武汉:武汉理工大学, 2016. 朱晓章. 全螺栓连接装配式混凝土剪力墙结构节点及承载力研究[D]. 武汉:武汉理工大学, 2017. 杨乐华. 螺栓连接装配整体式混凝土剪力墙受力性能研究[D]. 聊城:聊城大学, 2018. 赵斌,王庆杨,吕西林. 采用全装配水平接缝的预制混凝土剪力墙抗震性能研究[J]. 建筑结构学报,2018, 39(12):48-55. 中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB 50010-2010[S].北京:中国建筑工业出版社,2016. 朱幼麟, 文国栋. 高层大板建筑水平接缝的抗剪试验研究[J]. 建筑结构学报, 1982, 3(3):66-72. TSOUKANTAS S G, TASSIOS T P. Shear Resistance of Connections Between Reinforced Concrete Linear Precast Elements[J]. ACI Structural Journal, 1989, 86(3):242-249. 中华人民共和国住房和城乡建设部.装配式混凝土结构技术规程:JGJ 1-2014[S].北京:中国建筑工业出版社,2014. 杨昌,张雷,杨凤,等. 螺栓群剪力分配与螺栓布置关系的研究[J]. 南昌大学学报(工科版), 2016, 38(3):267-271. 中华人民共和国住房和城乡建设部.建筑抗震试验规程:JGJ/T 101-2015[S].北京:中国建筑工业出版社,2015. 中华人民共和国住房和城乡建设部. 混凝土结构工程施工质量验收规范:GB 50204-2015[S].北京:中国建筑工业出版社,2015.
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