Study on Transverse Bending Behavior of Twin Perfobond Rib Shear Connectors in Composite Girder Bridge with Corrugated Steel Webs

被引：0
|
作者：
Ren X. [1 ,2 ]
机构：
[1] China Railway Construction Yunnan Investment Co., Ltd., Kunming
[2] China Railway Construction Kunlun Investment Group Co., Ltd., Chengdu
来源：
Bridge Construction | 2023年 / 53卷 / 04期
关键词：
composite girder with corrugated steel webs; failure mode; load-displacement curve; static test; transverse bending behavior; twin perfobond rib shear connector;
D O I：
10.20051/j.issn.1003-4722.2023.04.012
中图分类号：
学科分类号：
摘要：
The study of this paper focuses on the transverse bending behaviors of the composite girder that features the corrugated steel webs and the twin perfobond rib shear connectors (T-PBL connectors for short). The Diyueke No. 1 Bridge, a continuous rigid-frame bridge with corrugated steel webs, is used for a case study. The failure mode and bending behaviors of the T-PBL connectors that connect the corrugated steel webs and concrete slabs are analyzed, taking into consideration of the action of transverse bending moments. Three specimens were prepared for the transverse flexural static test, with the diameter of the rebars of the T-PBL connectors as variable. The test results were compared with the theoretical values suggested in the Technical Standard for Composite Girder Bridge with Corrugated Steel Webs (CJJ/T 272-2017). It is shown that the diameter of the rebars has minimal influence on the failure mode of the T-PBL connectors, under the action of transverse bending moment, the failure mode is presented as the cracking of the concrete under tensile forces, at the same time, severe disengagement of the concrete and steel flanges is observed. The load-displacement curves of the specimens can be divided into an elastic stage, an elastic-plastic stage and a yielding stage. Increasing the diameter of the rebars is able to improve the transverse flexural strength of the T-PBL connectors. The method to calculate the transverse bending resistance of the T-PBL connectors given in the specification is relatively conservative, especially for the large-diameter rebars, the safety margin is wide. © 2023 Wuhan Bridge Research Institute. All rights reserved.
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页码：87 / 93
页数：6
相关论文
共 18 条
  • [1] LIU Minghu, Practices and Prospects of Steel-Concrete Composite Technology in Bridge Engineering, Bridge Construction, 52, 1, pp. 18-25, (2022)
  • [2] NIE Xin, XUE Zhichao, ZHUANG Liangdong, Research on Anti-Cracking Techniques for Deck in Negative Bending Moment Zone of Long-Span Continuous Steel-Concrete Composite Girder Bridge, Bridge Construction, 52, 4, pp. 24-31, (2022)
  • [3] ZOUShihua, LIAOXuan, CHEN Yu, Study of Model Tests of Mechanical Property of Steel-Concrete Joint Section for Hybrid Girder Cable-Stayed Bridge, World Bridges, 49, 4, pp. 27-34, (2021)
  • [4] YUE Xiupeng, MENG Jiao, ZHANG Wenliang, Et al., Research on Construction Schemes of Continuous Steel-Concrete Composite Girder Bridge with a Main Span of 120 m, World Bridges, 51, 1, pp. 58-63, (2023)
  • [5] LIU Jinping, WENG Yang, REN Hongchang, Study of Key Closure Techniques for Combined Rigid-Frame and Continuous Beam Bridge with Corrugated Steel Webs, World Bridges, 50, 2, pp. 84-89, (2022)
  • [6] RONG Xueliang, OUYANG Jing, ZHAO Pin, Et al., Study on Dynamic Property Parameter Analysis of Composite Trough Girder with Corrugated Steel Webs [J], Bridge Construction, 52, 6, pp. 95-101, (2022)
  • [7] CHEN Qifeng, XU Zhaodong, HAO Tianzhi, Et al., Prestress Introduction Efficiency of Composite Beam with Corrugated Web and Internal Prestress[J], China Civil Engineering Journal, 50, 12, pp. 72-79, (2017)
  • [8] YANG Yongqing, SUN Baolin, LI Xiaobin, Et al., Research on Excessive Prestress Loss of Pre-Tensioned PC Girders in Accelerated Construction, Bridge Construction, 52, 3, pp. 30-37, (2022)
  • [9] LIUYQ, XINHH, HEJ, Et al., Experimental and Analytical Study on Fatigue Behavior of Composite Truss Joints[J], Journal of Constructional Steel Research, 83, pp. 21-36, (2013)
  • [10] LIU Y Q, XIN H H, LIU Y Q., Load Transfer Mechanism and Fatigue Performance Evaluation of Suspender-Girder Composite Anchorage Joints at Serviceability Stage, Journal of Constructional Steel Research, 145, pp. 82-96, (2018)
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