• Zhijun Zhou Chang’an University, School of Highway, Xi’an 710064, China
  • Chaoran Chen Chang’an University, School of Highway, Xi’an 710064, China
  • Longfei Wang Zhumadian Construction Survey & Design Institute Co.,Ltd., Zhumadian 463000 China
  • Yeqing Tian Chang’an University, School of Highway, Xi’an 710064, China
  • Hongming Feng Chang’an University, School of Highway, Xi’an 710064, China
  • Kangchao Wang Chang’an University, School of Highway, Xi’an 710064, China



Suspension bridge, Gravity anchorage, Anti-sliding stability, Anti-overturning stability, Contact stress


The stability of gravity anchorages is critical to the safe operation of suspension bridges. The purpose of this paper is to study the stability of a gravity anchorage under the tension of main cables. Large-scale load tests and direct shear tests under the nature state and the saturated state were carried out in the adit at the bottom of the gravity anchorage, because the bottom surface of the gravity anchorage is below the design water level of a reservoir to be built. Representative rock samples in the anchorage area were selected for indoor tests. The basic parameters of the rock mass and the characteristic value of subsoil bearing capacity were obtained based on the field and indoor tests results. The static theory was used to calculate the anti-sliding stability coefficient, anti- overturning stability coefficient and contact stress of the gravity anchorage. The finite element software was used to calculate the horizontal displacement, vertical settlement and contact stress of the gravity anchorage. The calculation results met the relevant requirements, and it can be considered that the gravity anchorage was stable under the tension of main cables. It would provide a reference for the stability study of the gravity anchorage of suspension bridges.


Zhang Q, Li Y, Yu M, Hu, H, Hu J, 2014. Study of the rock foundation stability of the Aizhai suspension bridge over a deep canyon area in China. Engineering Geology, 198(2015): 65–77. DOI: 10.1016/j.enggeo. 2015. 09. 012

Deng Y, Wang C, Shi Y, Liu R, 2012. Summary for Application of Super Gravity Anchorage. Highway Engineering, 37(06): 93-96.

Ge Y, Shao S, Pan H, Hu F, 2013. Deformation and safety analysis of Taizhou suspension bridge south - anchor foundation under surcharge. Science & Technology Review, 31(26): 35-39. DOI: 10.3981/j.issn.1000-7857.2013.26.004

Koji K, Fumio T, 2010. Several Geotechnical Design and Construction Issues with Akashi Strait Bridge. Soils and Foundations, 50(06): 829-845. DOI: 10.3208/sandf.50.829.

Koji M, Carlos A, Nuntikorn K, Wataru T, Kohei N, Eiji I, 2018. Performance Assessment Using Structural Analysis and Spatial Measurement of a Damaged Suspension Bridge: Case Study of Twantay Bridge, Myanmar. Journal of Bridge Engineering, 23(10): 1-14. DOI: 10.1061/(ASCE)BE.1943-5592.0001293

Taylor R J, 1982. Interaction of anchors with soil and anchor design. Naval Civil Engineering Lab, California, USA.

Andersen EY, Andreasen BS, Ostenfeld-Rosenthal P, 1992. Foundation reliability of anchor block for suspension bridge. In: Rackwitz R., Thoft-Christensen P. (eds) Reliability and Optimization of Structural Systems ’91. Lecture Notes in Engineering, vol 76. Springer, Berlin, Heidelberg.

Carter M, 2012, Seismic Isolation of a Suspension Bridge Anchor Block. IABSE Congress Report, 18(12), 1235-1242.

Wu G, Zhang Y, Chen g, He S, 2013. Stress Analysis of Gravity Anchorage of Aizhai Bridge. Bridge Construction, 43(06): 40-44.

Xu S, Chen C, Zhu S, Xu F, li jie, Zhang Z, Xu T, Zhu L, 2020 Modeling Analysis of the Upper Limit Water Level Mechanism in the Upstream Reservoir of a Dam Embankment. Advances in Civil Engineering, 2020: 1-13.

Yin X, Yan F, Zhou L, Wang D, Deng Q, 2017. Joint bearing mechanism of structure and foundation for gravity anchor block of suspension bridge. Journal of Traffic and Transportation Engineering, 17(02): 1-11.

Chen T, Xiao S, Cheng Q, Zhou H, 2019. Long-term deformation and stability analysis of gravity anchorage slope on Kangding bank of Dadu River Bridge in Luding. Journal of Engineering Geology, 27(03): 632-639. DOI: 10.13544/ j.cnki.jeg.2018-253

Lai Y, Wu C, Zhang Z, 2010. Test and numerical analysis of effect of notched sill of gravity anchorage on soft rock ground of suspension bridge. Chinese Journal of Rock Mechanics and Engineering, 29(03): 593-602.

Xu T, Zhou Z, Yan R, Zhang Z, Zhu L, Chen C, Xu F, Liu T, 2020, Real-Time Monitoring Method for Layered Compaction Quality of Loess Subgrade Based on Hydraulic Compactor Reinforcement. Sensors, 20(15). DOI: 10.3390/s20154288

Luo X, 2011. Design of south anchorage foundation of Yingwuzhou Changjiang River Bridge in Wuhan. Bridge Construction, 2011(04): 05-09.

Guo S, Qi S, Li z, Ma J, Chai J, Zhai W, 2011. Stability Analysis of Anchorage for super suspension bridge over Longjiang River in Yunnan province. Journal of Engineering Geology, 19(6): 909-916.

Ya G, Han D, Shi H, Yang J, 2017. Study on the stability of gravity anchorage foundation of Nizhou Waterway Bridge of Second Humen Bridge. HIGHWAY, 62(04): 129-135.

Ma B, Ma X, Lu J, 2017. Design of anchorage and anchor system of Xiushan Bridge. Bridge Construction, 47(02): 89-94

CCCC HIGHWAY CONSULTANTS CO., LTD., 2019. Specifications for Design of Foundation of Highway Bridges and Culverts. China Communications Press Co., Ltd. Beijing, China, 73-75.

CHENDU ENGINEERING CORPORATION LIMITED, China Renewable Energy Engineering Institute, CHINA ELECTRICITY COUNCIL, 2013. Standard for test methods of engineering rock mass. China Planning Press. Beijing, China, 41-50.

Liu Y, Zhao M, Zheng S, 2011. Test study on the friction resistance of the north concrete anchor of Qingcaobei Yangtze River Bridge. JOURNAL OF CHONGQING JIAOTONG UNIVERSITY (NATURAL SCIENCE), 30(05): 911-915. DOI: 10. 3969/j. issn. 1674-0696. 2011. 05. 006

Ruan B, Xiao W, Yin H, 2011. Testing study on base resistance of the anchors at a suspension bridge. Journal of Railway Science and Engineering, 08(01): 59-62. DOI:10.19713/j.cnki.43-1423/u.2011.01.011

CCCC HIGHWAY CONSULTANTS CO., LTD., 2015. Specifications for Design of Highway Suspension Bridge. China Communications Press Co., Ltd. Beijing, China, 46-49.




How to Cite

Zhou, Z., Chen, C., Wang, L., Tian, Y., Feng, H., & Wang, K. (2021). STABILITY ANALYSIS OF THE GRAVITY ANCHORAGE OF A SUSPENSION BRIDGE BASED ON LARGE-SCALE FIELD TESTS. Stavební Obzor - Civil Engineering Journal, 30(1).