Tests on seismic behavior of precast RC shear walls with vertical rebar splicing by pressed sleeve

被引：0
|
作者：
Li N. [1 ,2 ]
Qian J. [1 ]
Ye L. [1 ]
Liu S. [3 ]
机构：
[1] Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Tsinghua University, Beijing
[2] China IPPR International Engineering Co., Ltd, Beijing
[3] Inner Mongolia Mengxi Engineering Design Co., Ltd, Hohhot
来源：
Qian, Jiaru (qianjr@tsinghua.edu.cn) | 2016年 / Science Press卷 / 37期
关键词：
Precast RC shear wall; Quasi-static test; Seismic behavior; Vertical rebar splicing by pressed sleeve;
D O I：
10.14006/j.jzjgxb.2016.01.004
中图分类号：
学科分类号：
摘要：
Quasi-static tests of four precast concrete shear wall specimens with shear span ratio of 2.11 were conducted. The vertical rebar of the precast shear wall was spliced by pressed sleeves. Among them, three shear walls had a rectangular section and the axial load ratios were 0.5, 0.6 and 0.2 respectively. One shear wall had a T section and an axial load ratio 0.5. The test results indicate that the shear wall specimens fail in compression and flexure interaction. The vertical rebars at boundary elements yield in tension and concrete at the edge of wall bottom crush in compression. The lateral force-displacement hysteretic loops have a degree of pinch. The ultimate rotation angles of the shear walls with rectangular section and T section, where the flange is in compression, are not less than 1/80. The ultimate rotation angle of shear wall with T section, where the web is in compression, is 1/110. The ratio of the measured compression-flexure strength to the calculated strength according to the formula of GB 50010-2010 is about 1.20 for the shear walls with rectangular section. The ratios become 1.04 and 1.11 for walls with T section, where the flange and web are in compression respectively. The pressed sleeve connector can transfer the tensile and compressive forces of rebar effectively. The seismic behavior of the precast shear wall with the vertical rebar splicing by pressed sleeve satisfies the current code requirements. © 2016, Science Press. All right reserved.
引用
收藏
页码：31 / 40
页数：9
相关论文
共 8 条
  • [1] Qian J., Yang X., Qin H., Et al., Tests on seismic behavior of pre-cast shear walls with various methods of vertical reinforcement splicing, Journal of Building Structures, 32, 6, pp. 51-59, (2011)
  • [2] Zhang W., Qian J., Yu J., Et al., Tests on seismic behavior of precast shear walls with cast-in-situ boundary elements and vertical distributed reinforcements spliced by a single row of steel bars, China Civil Engineering Journal, 45, 10, pp. 89-97, (2012)
  • [3] Jiang H., Chen Z., Zhang J., Et al., Quasi-static test of precast reinforced concrete shear wall structure, Journal of Building Structures, 32, 6, pp. 34-40, (2011)
  • [4] Chen T., Guo H., Ma T., Et al., Engineering application on housing industrialization of precast reinforced concrete shear wall structure, Building Structure, 41, 2, pp. 26-30, (2011)
  • [5] Wang D., Lu X., Lu W., Experimental study on seismic performance of precast concrete shear walls with joint connecting beam, Journal of Building Structures, 34, 10, pp. 1-11, (2013)
  • [6] Zhang X., Han P., Li Y., Et al., Seismic behavior of prefabricated alveolar type RC shear walls with cast-in-place embedded columns, Journal of Building Structures, 35, 8, pp. 88-94, (2014)
  • [7] Nan Z., Application of vertical rebar splicing by pressed sleeve in high-wall engineering, Heilongjiang Science and Technology of Water Conservancy, 40, 7, pp. 71-72, (2012)
  • [8] Sun Z., Application of extruding socket joint in drill-pouring pile, Shanxi Architecture, 31, 19, pp. 144-145, (2005)
1