Model test of composite joint for tower of cable-stayed bridge

被引：0
|
作者：
Zhang G. [1 ]
Zhang Q. [1 ]
Liu Y. [1 ]
Li Y. [2 ]
机构：
[1] Department of Bridge Engineering, Tongji University, Shanghai
[2] Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai
来源：
Liu, Yuqing (yql@tongji.edu.cn) | 1600年 / Harbin Institute of Technology卷 / 49期
关键词：
Cable-stayed bridge; Finite-element analysis; Hybrid tower; Joint section; Model test;
D O I：
10.11918/j.issn.0367-6234.2017.03.017
中图分类号：
学科分类号：
摘要：
In order to investigate the load transfer mechanism of composite joint for tower of cable-stayed bridge, a segment model test with a scale of 1∶3 was carried out, and the strain distribution of composite joint and the relative slippage between steel and concrete structure were obtained. A three-dimensional finite element model was established based on the test model, the structural performance of shear connectors and the effects of main parameters of composite were further investigated. The analysis results show that the stress components are at a lower level. There is a small relative slippage between steel and concrete, and both of them can bear the force collaboratively. The bearing-plate and shear connectors are main load transfer components, and could share 40% and 60% of the load respectively. Vertical shear force is at a lower level within 0.6 times length of composite joint of bearing-plate, while the vertical shear force increases gradually within 0.6-1.0 times length. The length of composite joint and the distance of shear connector have a great influence on the shear force of connector, while the diameter of the hole and the thickness of bearing-plate display a less effect. © 2017, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.
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页码：106 / 112
页数：6
相关论文
共 15 条
  • [1] Liu Y., Steel-concrete Hybrid Bridge, (2005)
  • [2] Wei X., Li X., Li J., Et al., Using steel-concrete hybrid structure in long span continuous rigid frame bridge, China Railway Science, 28, 5, pp. 43-46, (2007)
  • [3] Zhang Q., Li Q., Tang L., Fracture mechanism and ultimate carrying capacity of shear connectors applied for steel-concrete joint segment of bridge pylon, China Journal of Highway and Transport, 20, 1, pp. 85-90, (2007)
  • [4] Si X., Xiao L., Zhao J., Model test research on the steel-concrete joint section of cable stayed bridge tower, China Railway Science, 32, 5, pp. 26-31, (2011)
  • [5] He J., Liu Y., Pei B., Experimental study of the steel-concrete connection in hybrid cable-stayed bridges, Journal of Performance of Constructed Facilities, 28, 3, pp. 559-570, (2014)
  • [6] Liu R., Liu Y., Analysis of auxiliary ribs in steel-concrete joint of hybrid girder, Journal of Constructional Steel Research, 112, pp. 363-372, (2015)
  • [7] Jiang X., Liu Y., Sun X., Modeltest and mechanical behavior analysis of steel-concrete joint of hybrid girder, Journal of Civil, Architectural & Environmental Engineering, 36, 6, pp. 48-53, (2014)
  • [8] Tang L., Wu W., Liu G., Et al., Structural performance of rear bearing-plate connection with cells in steel-concrete hybrid girder, Engineering Mechanics, 27, 11, pp. 234-243, (2010)
  • [9] Li X., Xiao L., Huang L., Et al., Static mechanical behavior of steel-concrete joint section of hybrid beam cable-stayed bridges, Journal of Harbin Institute of Technology, 45, 6, pp. 75-82, (2013)
  • [10] Wei X., Qiang S., Specimen test for mechanics behavior of steel-concrete composite joint in pylon of cable-stayed bridge, Engineering Mechanics, 30, 1, pp. 255-261, (2013)
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