Experiment on Steel-concrete Joint of Hybrid Girder of a Long-span Self-anchored Suspension Bridge

PDF Full Text Download(4008 KB)

China Journal of Highway and Transport ›› 2018, Vol. 31 ›› Issue (9) : 52-64.

QIN Feng-jiang^1,2, ZHOU Xu-hong^1,2, LIANG Bo-wen^1,2, DI Jin^1,2, TU Xi^1,2, XU Liang-jin^1,2, ZOU Yang^1,2

Author information +

History +

Abstract

To investigate the mechanical behavior and load transfer mechanism of a steel-concrete joint (SCJ) of a hybrid girder of a self-anchored suspension bridge, a model test of the Egongyan rail transit bridge was conducted at a scale of 1:3 using self-balancing loading. The stress distribution and steel-concrete slip of the model were measured and compared with finite element analysis (FEA) results. The axial force transfer mechanism of the SCJ was analyzed based on the FEA results. The results show that the structure is elastic under test loads. The steel-concrete slip is small and no more than 4.2 μm, which indicates that steel and concrete can bear the force collaboratively. The axial force is transferred from the concrete to the steel box through the in-plane bearings of the perforated steel plates' ends, shear connectors, and out-plane bearings of the bearing plate. The bearing plate serves as the main load-transferring component, transferring 61.1% of the axial load. The shear connectors and perforated steel plates transfer 17.0% and 21.9% of the axial load, respectively. Thus, the effect of the in-plane bearings of the perforated steel plates' ends cannot be neglected. The results of this work can serve as a reference for future studies and designs of similar structures.

Key words

bridge engineering / steel-concrete joint / model test / force transfer mechanism / finite element analysis

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

QIN Feng-jiang, ZHOU Xu-hong, LIANG Bo-wen, DI Jin, TU Xi, XU Liang-jin, ZOU Yang. Experiment on Steel-concrete Joint of Hybrid Girder of a Long-span Self-anchored Suspension Bridge[J]. China Journal of Highway and Transport, 2018, 31(9): 52-64

References

[1] 陈开利,余天庆,习刚.混合梁斜拉桥的发展与展望[J].桥梁建设,2005(2):1-4. CHEN Kai-li, YU Tian-qing, XI Gang. Development and Prospective of Hybrid Girder Cable-stayed Bridge[J]. Bridge Construction, 2005(2):1-4.
[2] 刘玉擎.混合梁接合部设计技术的发展[J].世界桥梁,2005(4):9-12. LIU Yu-qing. Development of Design Technique for Joint Parts of Hybrid Girder[J]. World Bridges, 2005(4):9-12.
[3] 陈开利,王戒躁,安群慧.舟山桃夭门大桥钢与混凝土结合段模型试验研究[J].土木工程学报,2006,39(3):86-90. CHEN Kai-li, WANG Jie-zao, AN Qun-hui. Model Tests on Steel-concrete Joining Section of Main Girder of a Cable-stayed Bridge[J]. China Civil Engineering Journal, 2006, 39(3):86-90.
[4] 张清华,李乔,唐亮.桥塔钢-混结合段剪力键破坏机理及极限承载力[J].中国公路学报,2007,20(1):85-90. ZHANG Qing-hua, LI Qiao, TANG Liang. Fracture Mechanism and Ultimate Carrying Capacity of Shear Connectors Applied for Steel-concrete Joint Segment of Bridge Pylon[J]. China Journal of Highway and Transport, 2007, 20(1):85-90.
[5] 刘安双,刘雪山,代彤,等.重庆石板坡长江大桥复线桥钢-混接头设计[J].桥梁建设,2007(2):35-38. LIU An-shuang, LIU Xue-shan, DAI Tong, et al. Design of Steel and Concrete Joints of Double-line Bridge of Shibanpo Changjiang River Bridge in Chongqing[J]. Bridge Construction, 2007(2):35-38.
[6] 肖林,叶华文,卫星,等.斜拉桥桥塔钢-混结合段的力学行为和传力机理研究[J].土木工程学报,2014,47(3):88-96. XIAO Lin, YE Hua-wen, WEI Xing, et al. Study on Mechanical Behavior and Load Transfer Mechanism of Steel-concrete Composite Joint of Cable-stayed Bridge Pylon[J]. China Civil Engineering Journal, 2014, 47(3):88-96.
[7] 占玉林,赵人达,毛学明,等.东平大桥钢-混结合段模型试验[J].桥梁建设,2011(4):20-24. ZHAN Yu-lin, ZHAO Ren-da, MAO Xue-min, et al. Model Test of Steel and Concrete Joint Section of Dongping Bridge[J]. Bridge Construction, 2011(4):20-24.
[8] 樊健生,聂建国,吕坚锋,等.斜拉桥钢箱梁-混凝土索塔结合段的试验研究[J].土木工程学报,2008,41(7):61-66. FAN Jian-sheng, NIE Jian-guo, LU Jian-feng, et al. Test on the Composite Joint Section Between Steel Box Girder and Concrete Tower of a Cable-stayed Bridge[J]. China Civil Engineering Journal, 2008, 41(7):61-66.
[9] 黄彩萍,张仲先,陈开利.混合梁斜拉桥钢混结合段试验与传力机理研究[J].华中科技大学学报:自然科学版,2012,40(1):67-71. HUANG Cai-ping, ZHANG Zhong-xian, CHEN Kai-li. Model Test and Transfer Mechanism of Steel-concrete Composite Structure for Hybrid Girder Cable-stayed Bridges[J]. Journal of Huazhong University of Science & Technology:Natural Science Edition, 2012, 40(1):67-71.
[10] 张奇志,吴宝诗.九江长江公路大桥钢-混结合段模型试验研究[J].桥梁建设,2013,43(5):68-74. ZHANG Qi-zhi, WU Bao-shi. Model Test Study of Steel and Concrete Joint Section of Jiujiang Changjiang River Highway Bridge[J]. Bridge Construction, 2013, 43(5):68-74.
[11] 刘荣,余俊林,刘玉擎,等.鄂东长江大桥混合梁结合段受力分析[J].桥梁建设,2010(3):33-35. LIU Rong, YU Jun-lin, LIU Yu-qing, et al. Mechanical Analysis of Joint Sections of Hybrid Girder of Edong Changjiang River Bridge[J]. Bridge Construction, 2010(3):33-35.
[12] 唐亮,吴文明,刘高,等.有格室-后承压板结合部构造的结构特性[J].工程力学,2010,27(11):234-243. TANG Liang, WU Wen-ming, LIU Gao, et al. Structural Performance of Rear Bearing-plate Connection with Cells in Steel-concrete Hybrid Girder[J]. Engineering Mechanics, 2010, 27(11):234-243.
[13] 卫星,强士中.斜拉桥桥塔钢-混结合段传力机理试验研究[J].工程力学,2013,30(1):255-260,313. WEI Xing, QIANG Shi-zhong. Specimen Test for Mechanics Behavior of Steel-concrete Composite Joint in Pylon of Cable-stayed Bridge[J]. Engineering Mechanics, 2013, 30(1):255-260, 313.
[14] CHENG X, NIE X, FAN J S. Structural Performance and Strength Prediction of Steel-to-concrete Box Girder Deck Transition Zone of Hybrid Steel-concrete Cable-stayed Bridges[J]. Journal of Bridge Engineering, 2016, 21(11):1-19.
[15] 胡建华,叶梅新,黄琼.PBL剪力连接件承载力试验[J].中国公路学报,2006,19(6):65-72. HU Jian-hua, YE Mei-xin, HUANG Qiong. Experiment on Bearing Capacity of PBL Shear Connectors[J]. China Journal of Highway and Transport, 2006, 19(6):65-72.
[16] ZHANG Q H, JIA D L, BAO Y, et al. Analytical Study on Internal Force Transfer of Perfobond Rib Shear Connector Group Using a Nonlinear Spring Model[J]. Journal of Bridge Engineering, 2016, 21(11):1-10.
[17] HE S H, FANG Z, FANG Y W, et al. Experimental Study on Perfobond Strip Connector in Steel-concrete Joints of Hybrid Bridges[J]. Journal of Constructional Steel Research, 2016, 118:169-179.
[18] 周阳,蒲黔辉,施洲,等.铁路混合梁斜拉桥钢-混结合段传力及疲劳性能试验研究[J].土木工程学报,2015,48(10):77-83. ZHOU Yang, PU Qian-hui, SHI Zhou, et al. Study on Mechanics Behavior and Fatigue Performance of Steel-concrete Composite Joints of Railway Hybrid Girder Cable-stayed Bridges[J]. China Civil Engineering Journal, 2015, 48(10):77-83.
[19] 周阳,蒲黔辉,施洲,等.混合梁斜拉桥钢-混结合段剪力连接件群力学性能研究[J].铁道学报,2017,39(10):134-141. ZHOU Yang, PU Qian-hui, SHI Zhou, et al. Study on Mechanical Behavior of Group Shear Connectors for Steel-concrete Composite Joint of Hybrid Girder Cable-stayed Bridge[J]. Journal of the China Railway Society, 2017, 39(10):134-141.
[20] ZHAO Can-hui, LI Zhi-xiang, DENG Kai-lai, et al. Experimental Investigation on the Bearing Mechanism of Perfobond Rib Shear Connectors[J]. Engineering Structures, 2018, 159:172-184.
[21] JTG/T D64-01-2015,公路钢混组合桥梁设计与施工规范[S]. JTG/T D64-01-2015, Specifications for Design and Construction of Highway Steel-concrete Composite Bridge[S].

PDF Full Text Download(4008 KB)

2134

Accesses

Citation

Detail

Sections

Recommended

Abstract
Key words
Cite this article
References

Received	Published
2018-02-09	2018-09-20
Issue Date
2018-10-11

Please choose a citation manager

Content to export

Abstract

Key words

Cite this article

{{custom_sec.title}}

{{custom_sec.title}}

References

{{custom_fnGroup.title_en}}

Footnotes

模态框（Modal）标题

Please choose a citation manager

Content to export

Abstract

Key words

Cite this article

{{custom_sec.title}}

{{custom_sec.title}}

References

{{custom_fnGroup.title_en}}

Footnotes