Response analysis of a long-span cable-stayed bridge with ultra-high piles subjected to near-fault ground motions considering deep-water, sedimentation, local site, and wave-passage effect

Abstract

The objective of this study is to examine the dynamic response behavior of a long-span cable-stayed bridge with ultra-high piles subjected to near-fault ground motions, comprehensively considering deep-water, sedimentation, local site, and wave-passage effects. Firstly, a 3D finite element (FE) model of the long-span cable-stayed bridge with ultra-high piles (Approximately 105 m) and a tower height of 216.4 m was established using Midas software. The deep-water, sedimentation, local site, and wave-passage effects were synthetically considered in this FE model. The FE model incorporates the sag effect of the stayed cable and the pile-soil interaction, enabling a detailed seismic analysis. Secondly, the examined near-fault ground motions with long-period velocity pulses were selected from the PEER database according to the design acceleration response spectrum with a fortification intensity of VIII degrees. Finally, nonlinear time history analyses of the selected long-span cable-stayed bridge, subjected to spatial near-fault ground motions including local site effect and wave-passage effect, were conducted, and the responses of critical design sections and points in structures were examined and evaluated. The results demonstrate that long-period velocity pulses can significantly affect the structural responses, while deep-water and sedimentation effects do not have a significant impact on the dynamic responses of long-span cable-stayed bridges. For the local site effect, the softer the soil at the support site and the greater the difference in soil conditions at the support, the larger the structural response. Regarding the wave effect, the structural response will increase or decrease depending on the magnitude of the wave speed and the span length between towers.

References

[] AtmacaB, YurdakulM, AtesS. Nonlinear dynamic analysis of base isolated cable-stayed bridge under earthquake excitations. Soil Dyn Earthq Eng (1984), 2014, 66: 314-318

[] ChenB, HungT. Dynamic pressure of water and sediment on rigid dam. J Eng Mech, 1993, 119(7): 1411-1433

[] Chen X, Li J (2021) Seismic fragility analysis for tall piers bridges with rocking foundations. Adv Bridge Eng 2(1):1–12

[] CongZ, HuiJ, LeiH, HuiG, Xin-yiMA, Guang-songS. Nonlinear seismic response characteristics of fault-crossing single-tower cable-stayed bridge. China J Highway Transp, 2021, 34(2): 230-245

[] FanZ, ShuaiL, XiaoweiY, JingquanW, AtesS. Effect of near-fault pulse-type ground motions on the seismic responses of a long-span cable-stayed bridge. J Vib Shock, 2017, 36(21): 163-172

[] JiaH, ChenS, GuoD, ZhengS, ZhaoC. Track-bridge deformation relation and interaction of long-span railway suspension bridges subject to strike-slip faulting. Eng Struct, 2024, 300: 117-216

[] JiaH, LanX, ZhengS, LiL, LiuC. Assessment on required separation length between adjacent bridge segments to avoid pounding. Soil Dyn Earthq Eng (1984), 2019, 120: 398-407

[] JiaH, LiuZ, XuL, BaiH, BiK, ZhangC, ZhengS. Dynamic response analyses of long-span cable-stayed bridges subjected to pulse-type ground motions. Soil Dyn Earthq Eng, 2023, 164

[] JiaH, WuW, XuL, ZhouY, ZhengS, ZhaoC. Numerical simulation and damaged analysis of a simply supported beam bridge crossing potential active fault. Eng Struct, 2024, 301

[] JiaH, ZhangD, ZhengS, XieW, PandeyMD. Local site effect on a high-piers railway bridge under tridirectional spatial excitations. Nonstationary Stoch Anal Soil Dyn Earthq Eng, 2013, 52: 55-69

[] JintingW, QingT, XiuliDU. Analysis of the saturated sediment effect on the seismic response of high arch dams. J Hydroelectric Eng, 2006, 25(2): 11-15

[] KhakzandL, JalaliRS, VeisiM. Near-fault ground motion effect on pounding and unseating using an example of a three‐span, simply supported bridge. Earthq Eng Resil, 2022, 1(2): 164-195

[] LiB, BiK, ChouwN, ButterworthJW, HaoH. Experimental investigation of spatially varying effect of ground motions on bridge pounding. Earthq Eng Struct D, 2012, 41(14): 1959-1976

[] LiS, FarshadHD, WangJQ, AlamMS. Utilizing a new self-centering hysteresis model to assess the seismic vulnerability of a long-span cable-stayed bridge equipped with SMA wire-based roller bearings. Adv Bridge Eng, 2022, 3(1): 14

[] LiZX, XinH. Dynamic responses of bridges in deep-water under combined earthquake and wave actions. China Civil Eng J, 2012, 45(11): 134-140

[] LiZX, XinH. Influence of traveling wave effect on seismic responses of continuous rigid-framed bridge in deep-water. J Eng Mech, 2013, 30(03): 120-125

[] LiZX, ZhengQ, WuK, ShiY. Seismic analysis and test facilities of deep-water bridges considering water–structure interaction: a state‐of‐the‐art review. Earthq Eng Resil, 2022, 1(1): 21-39

[] LinY, ZongZ, TianS, LinJ. A new baseline correction method for near-fault strong-motion records based on the target final displacement. Soil Dyn Earthq Eng, 2018, 114: 27-37

[] NazmyAS, Abdel-GhaffarAM. Effect of ground motion spatial variability on the response of cable-stayed bridges. Earthq Eng Struct D, 1992, 21(1): 1-20

[] SonejiBB, JangidRS. Influence of soil–structure interaction on the response of seismically isolated cable-stayed bridge. Soil Dyn Earthq Eng, 2008, 28(4): 245-257

[] Tong L, Wang R, Wang D (2021) Seismic cracking mechanism and control for pre-stressed concrete box girders of continuous rigid-frame bridges: Miaoziping bridge in Wenchuan earthquake as an example. Adv Bridge Eng 2(1):1–25

[] Wang X, Pang Y, Ye A (2020) Probabilistic seismic response analysis of coastal highway bridges under scour and liquefaction conditions: does the hydrodynamic effect matter? Adv Bridge Eng 1(1):1–15

[] XuW, WangY, ZhongJ. Probabilistic seismic performance of pylons of a cable-stayed bridge under near‐fault and far‐fault ground motions. Earthq Eng Resil, 2022, 1(2): 225-240

[] Yi J, Yu DE (2021) Longitudinal damage of cable-stayed bridges subjected to near-fault ground motion pulses. Adv Bridge Eng 2(1):1–22

[] ZhangD, JiaH, ZhengS, XieW, PandeyMD. A highly efficient and accurate stochastic seismic analysis approach for structures under tridirectional nonstationary multiple excitations. Comput Struct, 2014, 145: 23-35

[] ZhangD, XieW, PandeyMD. Synthesis of spatially correlated ground motions at varying sites based on vector-valued seismic hazard deaggregation. Soil Dyn Earthq Eng, 2012, 41: 1-13

[] Zhao R, Zheng K, Wei X, Jia H, Li X, Zhang Q, Xu G, Zhan Y, Shen R, Zhang F, Pu Q, Gou H, Yu C (2022) State-of-the-art and annual progress of bridge engineering in 2021. Adv Bridge Eng 3(1):1–71

[] ZhengS, ShiX, JiaH, ZhaoC, QuH, ShiX. Seismic response analysis of long-span and asymmetrical suspension bridges subjected to near-fault ground motion. Eng Fail Anal, 2020, 115: 104615