纵筋合并连接的装配式钢筋混凝土剪力墙平面内受力性能
CSTR:
作者:
中图分类号:

TU317.1

基金项目:

国家重点研发计划(2016YFC0701506)


In-plane mechanical properties of assembled reinforced concrete shear walls with longitudinal reinforcements combined by connecting rebars
Author:
  • 摘要
  • | |
  • 访问统计
  • |
  • 参考文献 [14]
  • |
  • 相似文献 [20]
  • | | |
  • 文章评论
    摘要:

    钢筋混凝土剪力墙的钢筋数量较多而直径较小,装配时钢筋的连接工作量大且质量不易保证,纵筋合并连接是一种可能的解决方案。基于剪力墙截面设计方法分析了纵筋合并连接的可行性;通过3个剪力墙试件的拟静力试验验证了纵筋合并连接的有效性;采用有限元模拟方法分析了不同纵筋合并连接的装配式钢筋混凝土剪力墙受力性能。结果表明:当连接钢筋截面面积(强度)不小于原配筋截面面积(强度)且沿墙长均匀分布时,纵筋合并连接的装配式钢筋混凝土剪力墙仍表现出较好的抗震性能;边缘构件纵筋合并连接的剪力墙延性可能降低,宜慎重采用;分布钢筋采用合并连接对剪力墙的平面内受力性能影响较小,是一种较合理的合并连接方式,但连接钢筋布置位置宜沿墙长均匀分布,而不应集中于中性轴附近;未考虑纵筋合并连接对装配式钢筋混凝土剪力墙平面外受力性能、墙体抗裂性能及抗冲击能力等的削弱,因此,在应用时要考虑到此局限性。

    Abstract:

    The number of steel bars in reinforced concrete shear walls is generally large while the diameter is small, making the workload of connections heavy and the quality difficult to guarantee in assembling. In such a case, the longitudinal reinforcement combined connection is a possible solution. Based on the section design method, the feasibility of the longitudinal reinforcement combined connection is analyzed, which is verified through the quasi-static test of three shear wall specimens. The mechanical behavior of assembled reinforced concrete shear walls with different connecting rebars is analysed by finite element simulation method. The results show that the assembled reinforced concrete shear walls with connecting rebars equalizes to the original reinforcements in terms of area and strength and evenly distributed along the wall length still exhibit good seismic performance. It is indicated that the ductility of shear walls with connecting rebars in edge members may be reduced. Therefore, it is advised to adopt it with caution. It has little effect on the in-plane mechanical properties of shear walls to combine the distributed steel bars by connecting rebars, which is a more reasonable way of combining connections, but the location of the connecting rebars should be evenly distributed along the wall length rather than concentrated near the neutral axis. The out-of-plane mechanical behavior, crack resistance and impact resistance of the assembled reinforced concrete shear wall with longitudinal reinforcements combined by connecting rebars are not considered in this study, which should be taken into account in furthor application.

    参考文献
    [1] BACHMANN H, STEINLE A. Precast concrete structures [M]. Berlin: Wiley-VCH, 2011.
    [2] 安贺舜,周德源.预制装配式剪力墙钢筋连接方法研究进展[J].结构工程师,2018,34(6):158-167. AN H S, ZHOU D Y. Research progress of the connection of reinforced bar of prefabricated shear wall structure [J]. Structural Engineers, 2018, 34(6): 158-167. (in Chinese)
    [3] SOUDKI K A, RIZKALLA S H, LEBLANC B. Horizontal connections for precast concrete shear walls subjected to cyclic deformations part 1: mild steel connections [J]. PCI Journal, 1995, 40(4): 78-96.
    [4] SOUDKI K A, RIZKALLA S H, DAIKIW R W. Horizontal connections for precast concrete shear walls subjected to cyclic deformations part 2: prestressed connections [J]. PCI Journal, 1995, 40(5): 82-96.
    [5] SOUDKI K A, WEST J S, RIZKALLA S H, et al. Horizontal connections for precast concrete shear wall panels under cyclic shear loading [J]. PCI Journal, 1996, 41(3): 64-80.
    [6] 钱稼茹,彭媛媛,张景明,等. 竖向钢筋套筒浆锚连接的预制剪力墙抗震性能试验[J].建筑结构,2011,41(2):1-6. QIAN J R, PENG Y Y, ZHANG J M, et al. Tests on seismic behavior of pre-cast shear walls with vertical reinforcements spliced by grout sleeves [J]. Building Structure, 2011, 41(2): 1-6. (in Chinese)
    [7] 张微敬, 钱稼茹, 陈康, 等. 竖向分布钢筋单排连接的预制剪力墙抗震性能试验[J]. 建筑结构, 2011, 41(2): 12-16. ZHANG W J, QIAN J R, CHEN K, et al. Tests on seismic behavior of pre-cast shear walls with vertical distributed reinforcements spliced by a single row connecting rebars[J]. Building Structure, 2011, 41(2): 12-16.(in Chinese)
    [8] 刘程炜, 曹万林, 董宏英, 等. 低轴压比半装配式单排配筋再生混凝土剪力墙抗震性能试验研究[J]. 建筑结构学报, 2017, 38(6): 23-33. LIU C W, CAO W L, DONG H Y, et al. Experimental study on seismic performance of semi-assembled recycled concrete shear wall with single row of steel bars under low axial compression ratio [J]. Journal of Building Structures, 2017, 38(6): 23-33.(in Chinese)
    [9] 混凝土结构设计规范:GB 50010—2010[S].北京:中国建筑工业出版社, 2010. Code for design of concrete structures: GB 50010-2010[S]. Beijing: China Architecture & Building Press, 2010. (in Chinese)
    [10] 刘及进. 不同竖向钢筋连接的预制钢筋混凝土剪力墙抗震性能试验研究[D]. 重庆: 重庆大学, 2015. LIU J J. Experimental study on seismic behavior of precast reinforced concrete shear wall with different vertical steel connection [D]. Chongqing: Chongqing University, 2015.(in Chinese)
    [11] 廖东峰. 竖向钢筋不同连接方式的装配式钢筋混凝土剪力墙抗震性能[D]. 重庆: 重庆大学, 2016. LIAO D F. Seismic behavior of fabricated concrete shear wall with different vertical steel bar connection modes [D]. Chongqing: Chongqing University, 2016.(in Chinese)
    [12] 聂建国,王宇航.ABAQUS中混凝土本构模型用于模拟结构静力行为的比较研究[J].工程力学,2013,30(4):59-82. NIE J G, WANG Y H. Comparison study of constitutive model of concrete in ABAQUS for static analysis of structures [J]. Engineering Mechanics, 2013,30(4):59-82. (in Chinese)
    [13] 张雅融. 翼缘板切割型RCS组合节点的破坏模式和承载力研究[D]. 西安: 西安建筑科技大学, 2016. ZHANG Y R. Research on shear bearing capacity and failure modes of composite RCS joints with tapered-flange-type details [D]. Xi’an: Xi’an University of Architecture and Technology, 2016.(in Chinese)
    [14] Building code requirements for reinforced concrete: ACI 318-14[S]. Farmington Hills: American Concrete Institute, 2014.
    引证文献
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

刘立平,余杰,廖东峰,刘及进,邓小华,李英民.纵筋合并连接的装配式钢筋混凝土剪力墙平面内受力性能[J].土木与环境工程学报(中英文),2019,41(6):135-142. Liu Liping, Yu Jie, Liao Dongfeng, Liu Jijin, Deng Xiaohua, Li Yingmin. In-plane mechanical properties of assembled reinforced concrete shear walls with longitudinal reinforcements combined by connecting rebars[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2019,41(6):135-142.10.11835/j. issn.2096-6717.2019.113

复制
分享
文章指标
  • 点击次数:624
  • 下载次数: 926
  • HTML阅读次数: 417
  • 引用次数: 0
历史
  • 收稿日期:2019-02-15
  • 在线发布日期: 2019-12-12
文章二维码