The study examines bending moment, shear force, torsional moment, and vertical deflection in skew-curved bridges. These values are compared with those of straight bridges. SAP2000v20, a finite element method (FEM) based software, is utilised for modelling and analysing the bridges, conforming to the Indian Road Congress (IRC) 6:2017 Codal provisions. The purpose of this research is to examine the behaviour of skew-curved bridges using parametric variations. Also, the equation for a skew-curved bridge with different parameters is derived. The combined impact of curvature and skewness must be considered for accurate analysis, as separate evaluations are insufficient. Additionally, the impact of high skewness in curved bridges is not well-documented, and no specific guidelines or limitations are available. Therefore, a detailed parametric study is conducted to address these gaps, providing insights into the combined influence of skewness and curvature on bridge behaviour. This study extends by considering all IRC loadings and highlights the critical findings under the specified 70R track load conditions. Variables include skew angles, curve angles, span lengths, and the number of cells. Results indicate that incorporating skewness improves the performance of bridges with greater curvature by reducing forces and deflections. Notably, double-cell curved bridges with high skewness outperform single-cell counterparts with the same curvature and the same volume of material. The equations are found to be very close to the finite element results.
ZureickAWhiteDPhoawanichN, et al.Shear strength of horizontally curved steel I girders – experimental tests. Final report to Professional Services Industries, Inc. and Federal Highway Administration2002; 9: 329–342.
StithJPetruzziBKimHJ, et al.User-friendly finite element analysis software for analysis of curved-steel I-girder bridges. Transp Res Rec: J Transport Res Board2010; 2200: 43–49. https://doi.org/10.3141/2200-0
8.
MohseniIRashidAK. Transverse load distribution of skew cast-in-place concrete multicell box-girder bridges subjected to traffic condition. Lat Am J Solid Struct2013; 10: 247–262. https://doi.org/10.1590/S1679-78252013000200002
9.
WilsonTHussamMChenS. Seismic performance of skewed and curved reinforced concrete bridges in mountainous states. Eng Struct2014; 70: 158–167. https://doi.org/10.1016/j.engstruct.2014.03.039
10.
MinerLR. Effect of abutment skew and horizontally curved alignment on bridge reaction forces. In: Master’s thesis. : California State University, 2014.
11.
DengYPharesBMGreimannL, et al.Behavior of curved and skewed bridges with integral abutments. J Constructional Steel Res2015; 109: 115–136. https://doi.org/10.1016/j.jcsr.2015.03.003
AndrousAAfefyAHSennahK. Investigation of free vibration and ultimate behavior of composite twin-box girder bridges. J Constructional Steel Res2017; 130: 177–192. https://doi.org/10.1016/j.jcsr.2016.12.017
14.
TiwariSBhargavaP. Load distribution factors for composite multicell box girder bridges. J Inst Eng: Series A2017; 98(4): 483–492. https://doi.org/10.1007/s40030-017-0243-x
15.
ShiraziRSPekcanGItaniA. Analytical fragility curves for a class of horizontally curved box-girder bridges. J Earthq Eng2018; 22(5): 881–901. https://doi.org/10.1080/13632469.2016.1264325
NguyenKVelardeCGoicoleaJM. Analytical and simplified models for dynamic analysis of short skew bridges under moving loads. Adv Struct Eng2019; 22(9): 1–13. https://doi.org/10.1177/1369433219831481
18.
ArancibiaMDRugarLOkumusP. Role of skew on bridge performance. Transp Res Rec: J Transport Res Board2020; 2674(5): 1–11. https://doi.org/10.1177/0361198120914617
19.
VermaVNallasivamK. One-dimensional finite element analysis of thin-walled box-girder bridge. Innovative Infrastructure Solutions2020; 5(2): 1–24. https://doi.org/10.1007/s41062-020-00287-x
20.
RazzaqMKSennahKGhribF. Moment and shear distribution factors for the design of simply supported skewed composite steel I-girder bridges due to dead loading. J Bridge Eng2020; 25(8): 04020060. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001552
21.
AgarwalPPalPMehtaPK. Finite element analysis of skew box-girder bridges under IRC-A loading. J Struct Eng2020; 47(3): 243–258. https://serc.res.in/jose-contents
AgarwalPPalPMehtaPK. Computation of design forces and deflection in reinforced concrete skew-curved box-girder bridges. Struct Eng Mech2021; 78(3): 255–267. https://doi.org/10.12989/sem.2021.78.3.255
24.
VermaVMallothANallasivamK. Modal analysis of a thin-walled box-girder bridge and railway track using finite element framework. Computational Engineering and Physical Modelling2021; 4(4): 64–83. https://doi.org/10.22115/CEPM.2021.278798.1165
25.
VermaVNallasivamK. Free vibration behaviour of thin-walled concrete box-girder bridge using perspex sheet experimental model. Journal of achievements in Materials and Manufacturing Engineering2021; 106(2): 56–76. https://doi.org/10.5604/01.3001.0015.2418
26.
VermaVNallasivamK. Static response of curved steel thin-walled box-girder bridge subjected to Indian railway loading. Journal of achievements in Materials and Manufacturing Engineering2021; 108(2): 63–74. https://doi.org/10.5604/01.3001.0015.5065
27.
WuSJiaJJiaoC, et al.Study on the additional support length requirements of single-span bridges due to skew using a simplified method. Advances in Bridge Engineering2021; 2(22): 22. https://doi.org/10.1186/s43251-021-00038-7
28.
ShaikhMFNallasivamK. Static analysis of box-girder bridge under the influence of Indian railway vehicle loading using ANSYS finite element model. Advances in Bridge Engineering2022; 3(25): 1–16. https://doi.org/10.1186/s43251-022-00076-9
29.
YuanJLuoLZYuY, et al.Analysis of the working performance of large curvature prestressed concrete box girder bridges. Materials2022; 15: 1–30. https://doi.org/10.3390/ma15155414
30.
ZhangXChenELiL, et al.Development of the dynamic response of curved bridge deck pavement under vehicle–bridge interactions. Int J Struct Stabil Dynam2022; 22(11): 2241003. https://doi.org/10.1142/S0219455422410036
31.
MaironeMAssoRMaseraD, et al.Behaviour and analysis of horizontally curved steel box-girder bridges. Open J Civ Eng2022; 12(3): 390–414. https://doi.org/10.4236/ojce.2022.123022
AgarwalPPalPMehtaPK. Finite element analysis of reinforced concrete curved box-girder bridges. Advances in Bridge Engineering2023; 4(1): 1–21. https://doi.org/10.1186/s43251-023-00080-7
35.
VermaVNallasivamK. Dynamic interaction analysis of a high-speed train vehicle and a thin-walled curved box-girder bridge with a sub-track system by finite element method. Asian Journal of Civil Engineering2023; 24(8): 1–26. https://doi.org/10.1007/s42107-023-00724-z
36.
ShaikhMFNallasivamN. Static and free vibration response of a box-girder bridge using the finite element technique. Multidiscip Model Mater Struct2023; 19(5): 897–923. https://doi.org/10.1108/MMMS-12-2022-0277
SAP2000v20. Analysis reference manual version 20.0.0. Comput Struct Inc.
41.
IRC 6. Standard specifications and code of practice for road bridges, section II, loads & stresses, 2017. IRC.
42.
IRC: 21-2000. Standard specification and code of practice for road bridges, section III-Cement concrete (planed and reinforced) — indian roads congress. IRC.
