[1]杨辉,郭正兴,许傲逸,等.局部后张预应力装配式混凝土框架梁柱节点抗震试验研究[J].东南大学学报(自然科学版),2019,49(6):1101-1108.[doi:10.3969/j.issn.1001-0505.2019.06.012]
 Yang Hui,Guo Zhengxing,Xu Aoyi,et al.Experimental study on seismic behavior of local post-tensioned precast concrete beam-to-column connections[J].Journal of Southeast University (Natural Science Edition),2019,49(6):1101-1108.[doi:10.3969/j.issn.1001-0505.2019.06.012]
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局部后张预应力装配式混凝土框架梁柱节点抗震试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
49
期数:
2019年第6期
页码:
1101-1108
栏目:
土木工程
出版日期:
2019-11-20

文章信息/Info

Title:
Experimental study on seismic behavior of local post-tensioned precast concrete beam-to-column connections
作者:
杨辉1郭正兴1许傲逸1管东芝1封剑森2
1 东南大学土木工程学院, 南京 210096; 2江苏华江祥瑞现代建筑发展有限公司, 扬州 225215
Author(s):
Yang Hui1 Guo Zhengxing1 Xu Aoyi1 Guan Dongzhi1 Feng Jiansen2
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2 Jiangsu Huajiang Xiangrui Modern Architecture Development Co., Ltd., Yangzhou 225215, China
关键词:
梁柱节点 装配式混凝土框架 抗震试验 后张预应力
Keywords:
beam-to-column connection precast concrete frame seismic testing local post-tensioned
分类号:
TU375.4;TU317.1
DOI:
10.3969/j.issn.1001-0505.2019.06.012
摘要:
为进一步提高装配式混凝土框架的现场装配效率,提出了一种新型干湿混合式局部后张预应力装配式混凝土框架节点.在施工阶段,采用梁端局部后张预应力的干式连接形成无楼板的可承力框架结构,从而实现逐跨和立体交叉装配施工.在使用阶段,通过预制梁和预制板顶部后浇混凝土面层的湿式连接,形成干湿混合式连接的有楼板装配整体式框架结构.开展了4个预制和1个现浇足尺试件的低周反复荷载试验,对新型节点及可能影响节点性能的相关构造包括弧形预应力筋类型、预应力筋和叠合层纵筋的黏结方式、叠合层纵筋预留孔道内灌浆料类型进行了研究分析.试验结果表明:新型节点为梁端塑性铰破坏,满足强柱弱梁的设计原则;试验强度与理论值相符,具有较好的安全储备;与现浇节点相比,其极限变形能力较强,延性相当,因钢筋滑移的影响耗能较弱.
Abstract:
To improve the assembling construction efficiency for precast concrete moment resisting frames, a new dry-wet combined precast concrete beam-to-column connection with local post-tensioned tendons was developed. In the construction stage, a temporary frame structure with dry connections, capable of withstanding subsequent construction loads, was established using local post-tensioned tendons to realize bay-by-bay and top-and-below stereoscopic construction. In the serviceability stage, wet connection was achieved through cast-in-place top concrete above precast beams and slabs to form a monolithic frame structure with the dry-wet combined connections. Four precast and one monolithic full-scale specimens were tested under reversal cyclic loading to evaluate the earthquake resistance and relevant details that may affect the structural performance, including the type of post-tensioned(PT)arc tendon, the bonding condition of PT tendons and composite beam top longitudinal reinforcements, and the type of grouting materials in the longitudinal reinforcement duct. The results show that the proposed connection fails in a flexural mode at beam ends, which satisfies the design principle of strong-column and weak-beam. The experimental strength is consistent with the theoretical value, and has a sufficient margin. Compared with the monolithic connection, it shows better deformation capacity, comparable ductility and lower energy dissipation due to the steel bar slippage.

参考文献/References:

[1] Joint ACI-ASCE Committee 550. ACI 550.2R-13 Design guide for connections in precast jointed systems[S]. Farmington Hills, MI, USA: American Concrete Institute, 2014.
[2] Kurama Y C, Sritharan S, Fleischman R B, et al. Seismic-resistant precast concrete structures: State of the art[J]. Journal of Structural Engineering, 2018, 144(4): 03118001. DOI:10.1061/(asce)st.1943-541x.0001972.
[3] Restrepo J I, Park R, Buchanan A H. Tests on connections of earthquake resisting precast reinforced concrete perimeter frames of buildings[J]. PCI Journal, 1995, 40(4): 44-61. DOI:10.15554/pcij.07011995.44.61.
[4] 杨辉, 郭正兴, 尹航, 等. 高强底筋锚入式预制装配混凝土框架梁柱节点抗震试验研究[J]. 东南大学学报(自然科学版), 2018, 48(6): 979-986. DOI:10.3969/j.issn.1001-0505.2018.06.001.
Yang H, Guo Z X, Yin H, et al. Experimental study on seismic behavior of precast concrete beam-to-column connections with high-strength hooked beam bottom bars[J]. Journal of Southeast University(Natural Science Edition), 2018, 48(6): 979-986. DOI:10.3969/j.issn.1001-0505.2018.06.001. (in Chinese)
[5] 管东芝, 郭正兴, 于建兵, 等. 钢绞线锚入式预制砼框架节点构造及试验[J]. 浙江大学学报(工学版), 2016, 50(2): 282-291. DOI:10.3785/j.issn.1008-973X.2016.02.012.
Guan D Z, Guo Z X, Yu J B, et al. Structural measures and experimental study of precast concrete joints of anchored prestressing strands in frames[J]. Journal of Zhejiang University(Engineering Science), 2016, 50(2): 282-291. DOI:10.3785/j.issn.1008-973X.2016.02.012. (in Chinese)
[6] 蔡建国, 冯健, 王赞, 等. 预制预应力混凝土装配整体式框架抗震性能研究[J]. 中山大学学报(自然科学版), 2009, 48(2): 136-140. DOI:10.3321/j.issn:0529-6579.2009.02.027.
Cai J G, Feng J, Wang Z, et al. Seismic behavior of frame comprised of precast prestressed concrete components[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2009, 48(2): 136-140. DOI:10.3321/j.issn:0529-6579.2009.02.027. (in Chinese)
[7] Parastesh H, Hajirasouliha I, Ramezani R. A new ductile moment-resisting connection for precast concrete frames in seismic regions: An experimental investigation[J]. Engineering Structures, 2014, 70: 144-157. DOI:10.1016/j.engstruct.2014.04.001.
[8] Ha S S, Kim S H, Lee M S, et al. Performance evaluation of semi precast concrete beam-column connections with U-shaped strands[J]. Advances in Structural Engineering, 2014, 17(11): 1585-1600. DOI:10.1260/1369-4332.17.11.1585.
[9] Im H J, Park H G, Eom T S. Cyclic loading test for reinforced-concrete-emulated beam-column connection of precast concrete moment frame[J]. ACI Structural Journal, 2013, 110(1): 115-125. DOI:10.14359/51684335.
[10] Guan D Z, Jiang C,Guo Z X, et al. Development and seismic behavior of precast concrete beam-to-column connections[J]. Journal of Earthquake Engineering, 2018, 22(2): 234-256. DOI:10.1080/13632469.2016.1217807.
[11] Joint ACI-ASCE Committee 550. ACI 550.3-13 Design specification for unbonded post-tensioned precast concrete special moment frames satisfying ACI 374.1(ACI 550.3-13)and commentary[S]. Farmington Hills, MI, USA: American Concrete Institute, 2013.
[12] Priestley M J N,MacRae G A. Seismic tests of precast beam-to-column joint subassemblages with unbonded tendons[J]. PCI Journal, 1996, 41(1): 64-81. DOI:10.15554/pcij.01011996.64.81.
[13] 中华人民共和国住房和城乡建设部. GB 50011—2010建筑抗震设计规范[S]. 北京: 中国建筑工业出版社, 2016.
[14] 江苏省住房和城乡建设厅. DGJ32/TJ 202—2016热处理带肋高强钢筋混凝土结构技术规程[S]. 南京:江苏凤凰科学技术出版社, 2016.

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备注/Memo

备注/Memo:
收稿日期: 2019-04-08.
作者简介: 杨辉(1982—),男,博士生;郭正兴(联系人),男,教授,博士生导师,guozx195608@126.com.
基金项目: “十三五”国家重点研发计划专项资助项目(2016YFC0701703).
引用本文: 杨辉,郭正兴,许傲逸,等.局部后张预应力装配式混凝土框架梁柱节点抗震试验研究[J].东南大学学报(自然科学版),2019,49(6):1101-1108. DOI:10.3969/j.issn.1001-0505.2019.06.012.
更新日期/Last Update: 2019-11-20