Full-scale model static tests of integral joint on the Shiziyang Bridge

CHEN Wei-le; LIU Zhen-bei; LIU Shuang; LIU Yong-jian; CUI Gao-yan; WANG Kun; MA Wen-jie; JIANG Lei

doi:10.19818/j.cnki.1671-1637.2025.03.004

Volume 25 Issue 3

Jun. 2025

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CHEN Wei-le, LIU Zhen-bei, LIU Shuang, LIU Yong-jian, CUI Gao-yan, WANG Kun, MA Wen-jie, JIANG Lei. Full-scale model static tests of integral joint on the Shiziyang Bridge[J]. Journal of Traffic and Transportation Engineering, 2025, 25(3): 65-81. doi: 10.19818/j.cnki.1671-1637.2025.03.004

Citation:

CHEN Wei-le, LIU Zhen-bei, LIU Shuang, LIU Yong-jian, CUI Gao-yan, WANG Kun, MA Wen-jie, JIANG Lei. Full-scale model static tests of integral joint on the Shiziyang Bridge[J]. Journal of Traffic and Transportation Engineering, 2025, 25(3): 65-81. doi: 10.19818/j.cnki.1671-1637.2025.03.004

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Full-scale model static tests of integral joint on the Shiziyang Bridge

doi: 10.19818/j.cnki.1671-1637.2025.03.004

CHEN Wei-le^{1, 2},
LIU Zhen-bei³,
LIU Shuang^{2, 4},
LIU Yong-jian^{3, 5
,
,},
CUI Gao-yan³,
WANG Kun³,
MA Wen-jie³,
JIANG Lei³

1.
Department of Civil Engineering, Tsinghua University, Beijing 100084, China
2.
Guangdong Provincial Highway Construction Co., Ltd., Guangzhou 510030, Guangdong, China
3.
School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China
4.
Guangdong Bay Area Transportation Construction Investment Co., Ltd., Guangzhou 511455, Guangdong, China
5.
School of Civil Engineering, Chongqing University, Chongqing 400045, China

Funds:

National Natural Science Foundation of China 52478125

Key Research Project of Guangdong Provincial Communication Group Co., Ltd. JT2023ZD01-01

More Information

Corresponding author: LIU Yong-jian (1966-), male, professor, PhD, liuyongjian@chd.edu.cn
Received Date: 2024-08-26
Accepted Date: 2025-03-12
Rev Recd Date: 2024-12-16
Publish Date: 2025-06-28

Abstract

Abstract

In order to study the out-of-plane rotational behavior of the integral joint of the plate-truss composite steel truss stiffening girder and evaluate the structural safety of the integral joint of the Shiziyang Bridge under the design load, a full-scale model static load test of the integral joint was carried out. The finite element model of Shiziyang Bridge was established to determine the magnitude of the test load, and the finite element model of the stiffening girder segment and joint was used to determine the strain and deformation measurement points. The sectional normal stresses of the crossbeam, web members, and chord of the joint under out-of-plane loading were measured. Based on the stress analysis theory of thin-walled structures, the bending normal stresses of the crossbeam and web members were extracted. The out-of-plane bending moments were calculated, and the accuracy of this method was verified. The out-of-plane rotational deformation of the joint was tested. The out-of-plane moment rotation curve of the joint was plotted, and the out-of-plane rotational stiffness of the joint was obtained. The restrained torsional normal stress of the chord was extracted using the measured sectional normal stress, and the torsional performance of the chord was evaluated. The three-dimensional stress of the local areas of the joint was tested, and the Mises stresses at each measurement point were calculated to evaluate the safety of the joint under out-of-plane static load. Test results show that the joint remains in the elastic stage under the design load. The out-of-plane bending moment calculated by this method based on sectional normal stress analysis agrees well with the theoretical value, with a relative error ranging from 2.5% to 10.0%. Under out-of-plane load, obvious shear lag effects are observed in the crossbeam and web member sections, with a 40% reduction in the effective width of the top flange of the crossbeam and a 10% reduction in the effective width of the flanges of web members. The out-of-plane rotational stiffness of the integral joint of Shiziyang Bridge is between that of a rigid joint and a hinged joint and is significantly influenced by boundary conditions. The maximum restrained torsional normal stress of the chord is 4.19% of the axial stress under design live load. The most unfavorable stress position under out-of-plane load is at the welding hole of the chord diaphragm where the Mises stress is lower than the design strength of steel, with a safety factor of 2.32. The test results and the proposed calculation method can serve as a reference for the study of the out-of-plane mechanical behavior of steel truss girder joints.
- bridge engineering,
- double-deck suspension bridge,
- plate-truss composite girder,
- integral joint,
- out-of-plane rotation,
- static test

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References(34)

References

[1]	JENNINGS A. Closure to "gravity stiffness of classical suspension bridges" by Alan Jennings (January, 1983)[J]. Journal of Structural Engineering, 1984, 110(4): 916-918.
[2]	OKAUCHI I, MIYATA T, TATSUMI M, et al. Dynamic field tests and studies on vibrational characteristics of long-span suspension bridges[J]. Japan Society of Civil Engineers, 1992(446): 101-112.
[3]	GAO Zong-yu, SHI Fang-hua. Key techniques of design of main bridge of Oujiang River North Estuary Bridge in Wenzhou[J]. Bridge Construction, 2017, 47(1): 1-5.
[4]	ZHANG Cheng-dong, XIAO Hai-zhu, XU Gong-yi. Overall design of Yangsigang Changjiang River Bridge[J]. Bridge Construction, 2016, 46(2): 81-86.
[5]	GUO Feng-chao, WANG Mao-qiang, ZHANG Tai-ke. Study on structural system of long span bridge over 2 000 m class[J]. Highway, 2022, 67(10): 194-198.
[6]	XIAN Rong, TANG Mao-lin, WU Ling-zheng, et al. Research on main cable erection influential parameters of suspension bridge with span length over 2 000 m[J]. World Bridges, 2023, 51(3): 74-80.
[7]	TOUSIGNANT K, PACKER J A. Analysis of rectangular hollow section trusses[J]. Canadian Journal of Civil Engineering, 2019, 46: 160-175.
[8]	FRATER G S, PACKER J A. Modelling of hollow structural section trusses[J]. Canadian Journal of Civil Engineering, 1992, 19(6): 947-959.
[9]	GARIFULLIN M, BRONZOVA M, PAJUNEN S, et al. Initial axial stiffness of welded RHS T joints[J]. Journal of Constructional Steel Research, 2019, 153: 459-472.
[10]	LIU Yong-jian. Experiments on ultimate bearing capacity and research on design method of joints of concrete-filled rectangular steel tube truss[D]. Changsha: Hunan University, 2003.
[11]	CHENG Gao, LIU Yong-jian, TIAN Zhi-juan, et al. Tensile behavior of PBL stiffened concrete-filled rectangular steel tubular unequal T-connections[J]. Journal of Chang'an University (Natural Science Edition), 2015, 35(3): 83-90.
[12]	LIU Yong-jian, WANG Wen-shuai, MA Yin-ping, et al. Axial stiffness of RHS and CFRHS T-joints with unequal width subjected to tension[J]. Journal of Architecture and Civil Engineering, 2020, 37(1): 1-13.
[13]	PACKER J A. Concrete-filled HSS connections[J]. Journal of Structural Engineering, 1995, 121(3): 458-467.
[14]	LI H T, YOUNG B. Experimental investigation of concrete-filled high-strength steel tubular X joints[J]. Journal of Structural Engineering, 2018, 144(10): 04018178.
[15]	MA Y P, LIU Y J, WANG K, et al. Axial stiffness of concrete filled rectangular steel tubular (CFRST) truss joints[J]. Journal of Constructional Steel Research, 2021, 184(1): 106820.
[16]	MA Y P, LIU Y J, MA T Y, et al. Flexural stiffness of rectangular hollow section (RHS) trusses[J]. Engineering Structures, 2021, 239(5): 112336.
[17]	MA Y P, LIU Y J, WANG K, et al. Flexural behavior of concrete-filled rectangular steel tubular (CFRST) trusses[J]. Structures, 2022, 36(2): 32-49.
[18]	GARIFULLIN M, BRONZOVA M, JOKINEN T, et al. Effect of fillet welds on initial rotational stiffness of welded tubular joints[J]. Procedia Engineering, 2016, 165: 1643-1650.
[19]	GARIFULLIN M, PAJUNEN S, MELA K, et al. Initial in-plane rotational stiffness of welded RHS T joints with axial force in main member[J]. Journal of Constructional Steel Research, 2017, 139: 353-362.
[20]	HAVULA J, GARIFULLIN M, HEINISUO M, et al. Moment-rotation behavior of welded tubular high strength steel T joint[J]. Engineering Structures, 2018, 172: 523-537.
[21]	GARIFULLIN M, PAJUNEN S, MELA K, et al. Finite element model for rectangular hollow section T joints[J]. Rakenteiden Mekaniikka, 2018, DOI: 10.23998/RM.70439.
[22]	DE BARROS H T G D, DE OLIVEIRA M M D, SARMANHO A M C, et al. Stiffness assessment of welded Ⅰ-beam to RHS column connections[J]. Engineering structures, 2022, DOI: 10.1016/j.engstruct.2022.114661.
[23]	ZHAO Bi-da, ZHAO Dian-sheng, SHENTU Qian-yun, et al. Rigidity of unstiffened X-type RHS joints subjected to out-of-plane bending[J]. Journal of Building Structures, 2016, 37(S): 399-405.
[24]	ZHAO Bi-da, JIANG Wen-lan, KE Ke, et al. Out-of-plane flexural rigidity of unstiffened eccentric rectangular hollow section joints[J]. Journal of Harbin Engineering University, 2019, 40(6): 1122-1127, 1133.
[25]	WANG Tian-liang. Test study of integral panel points of steel truss girder[J]. Bridge Construction, 1999(4): 32-40.
[26]	TAN Ming-he, WANG Rong-hui, HUANG Yong-hui, et al. Special joint model test of stiff suspension reinforced steel truss bridge[J]. China Journal of Highway and Transport, 2008, 21(1): 47-52.
[27]	TAN Ming-he, WANG Rong-hui, HUANG Yong-hui. Design and finite element analysis on special joint model test of rigid suspension stiffed steel truss bridge[J]. Science Technology and Engineering, 2008(9): 2385-2391.
[28]	WANG R H, HUANG Y H, LI Q S, et al. Model test and numerical analysis of a special joint for a truss bridge[J]. Journal of Constructional Steel Research, 2009, 65(6): 1261-1268.
[29]	WEI Xing. Mechanical behaviors of special joints of inclined trusses of the Zhengzhou Yellow River Highway-Railway Cable-Stayed Bridge[J]. Journal of the China Railway Society, 2011, 33(9): 89-93.
[30]	LIU Chang-yong, WU Xin-rong, WANG Yu-yin. Model test on an integral joint of steels truss bridge subjected to multi-directional loadings[J]. Journal of Building Structures, 2015, 36(S): 131-137.
[31]	XIAO Xin, PAN Yong-jie, TIAN Yue, et al. Model test for key joints of extra-kilometer-span highway and railway shared cable-stayed bridge[J]. Railway Engineering, 2015(10): 51-55.
[32]	WEI Si-si, GENG Bo, SHANG Jun-nian, et al. Design of model experiment on multi-member special joint of Chongqing Zengjiayan Bridge[J]. Journal of Highway and Transportation Research and Development, 2022, 38(6): 92-100, 107.
[33]	WEI Si-si, GENG Bo, SHANG Jun-nian, et al. Scaled static model test on special joints of two-main-truss stiff suspension reinforced steel truss bridge[J]. Bridge Construction, 2022, 52(5): 52-59.
[34]	WEI Si-si, GENG Bo, SHANG Jun-nian, et al. Force behavior of special joints of plate-girder combined steel truss bridge reinforced by suspension cables[J]. Journal of Chongqing Jiaotong University (Natural Science), 2023, 42(1): 1-8.

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Full-scale model static tests of integral joint on the Shiziyang Bridge

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