Abstract
In this paper, the strategy of three scales was proposed to analyse strong stress distributions of key joints during the incremental launching construction. Firstly, the internal forces and reaction forces were obtained by the finite element method (FEM). Secondly, some key joints were separated from the whole structure. The displacements and boundary conditions of the separated joint were taken from the results of the FEM. Then the stress distributions of the separated joint were successfully obtained by using the FEM. Thirdly, the local stress concentration areas were separated from the key joint structure. The high stress distributions of the local stress concentration region were successfully obtained by using the extended boundary element method (XBEM). On the other hand, the stress of some joints were measured through mechanical test on the construction site. And calculation results of the FEM and XBEM were in good agreement with test results. A multi-scale method is developed to obtain the strong stress concentration during the construction of the super-spanned steel truss bridge accurately, which enables the safety of the construction. In addition, the present method can be further used to guide the design of super-tall building, super-spanned bridge, etc.
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References
Cheng B, Zhou HJ, Sun HT, Zhao JC (2010) A preliminary study on the reduction of secondary forces for steel trusses by adopting bowknot integral joints. Journal of Building Structures 31(S1):66–71, DOI: https://doi.org/10.14006/j.jzjgxb.2010.s1.014 (in Chinese)
Chen H, Li J, Li YX (2011) Local stress analysis of integral joint of continuous steel truss girder at construction stage. Journal of Railway Engineering Society 209(5):1–25+58, DOI: https://doi.org/10.1111/j.1365-2761.2010.01212.x (in Chinese)
Graciano C, Ayestarán A (2013) Steel plate girder webs under combined patch loading, bending and shear. Journal of Constructional Steel Research 80:202–212, DOI: https://doi.org/10.1016/j.jcsr.2012.09.018
Huang YH, Wang RH, Rao R (2012) The calculation and analysis of the spatial mechanical behavior for steel truss bridge considering the effect of integral joint rigid zone. China Railway Science 33(5):8–14, DOI: https://doi.org/10.3969/j.issn.1001-4632.2012.05.02 (in Chinese)
Hu Z, Wu D, Sun LZ (2015) Integrated investigation of an incremental launching method for the construction of long-span bridges. Journal of Constructional Steel Research 112:130–137, DOI: https://doi.org/10.1016/j.jcsr.2015.05.001
Jiki PN, Agber JU (2014) Damage evaluation in gap tubular truss ‘K’ bridge joints using SFEM. Journal of Constructional Steel Research 93:135–142, DOI: https://doi.org/10.1016/j.jcsr.2013.10.010
Liu YJ, Liu J, Liu JP, Zhang JG, Deng SF (2010) Integral model test of steel truss bridge stiffened with rigid cables in construction stage. China Civil Engineering Journal 43(5):72–77, DOI: https://doi.org/10.15951/j.tmgcxb.2010.02.003 (in Chinese)
Liu D, Xin H, He J, Xue D, Ma B (2013) Experimental and analytical study on fatigue behavior of composite truss joints. Journal of Constructional Steel Research 83:21–36, DOI: https://doi.org/10.1016/j.jcsr.2012.12.020
Li C, Niu ZR, Hu ZJ, Cheng CZ (2019) Effectiveness of the stress solutions in notch/crack tip regions by using extended boundary element method. Engineering Analysis with Boundary Elements 108(1):1–13, DOI: https://doi.org/10.1016/j.enganabound.2019.07.005
Niu ZR, Ge DL, Cheng CZ, Ye JQ, Recho N (2009) Evaluation of the stress singularities of plane V-notches in bonded dissimilar materials. Applied Mathematical Modelling 33:1776–1792, DOI: https://doi.org/10.1016/j.apm.2008.03.007
Niu ZR, Li C, Ge RY, Hu ZJ, Hu B (2019) Analysis of plastic stress singularities of cracks and wedges under the plane stress conditions. Engineering Fracture Mechanics 208(1):72–89, DOI: https://doi.org/10.1016/j.engfracmech.2018.12.027
Xue D, Liu Y, He J, Ma B (2011) Experimental study and numerical analysis of a composite truss joint. Journal of Constructional Steel Research 67:957–964, DOI: https://doi.org/10.1016/j.jcsr.2011.01.013 (in Chinese)
Xing Y, Yang CP (2017) Research on the manufacturing process of the lower chord with integral joints of HUTONG YANGTZE river bridge. Steel Construction 32(4):74–77, DOI: https://doi.org/10.13206/j.gjg201704015 (in Chinese)
Yosibash Z, Szabó BA (1996) A note on numerically computed eigenfunctions and generalized stress intensity factors associated with singular points. Engineering Fracture Mechanics 54:593–595, DOI: https://doi.org/10.1016/0013-7944(95)00090-9
Yin GA, Wang HB (2016) Study on ultimate bearing capacity of steel-concrete composite truss bridge bottom-chord joints. China Civil Engineering Journal 49(4):88–95, DOI: https://doi.org/10.15951/j.tmgcxb.2016.04.009 (in Chinese)
Zhang Y, Luo R (2012) Patch loading and improved measures of incremental launching of steel box girder. Journal of Constructional Steel Research 68:11–19, DOI: https://doi.org/10.1016/j.jcsr.2011.06.013
Acknowledgments
This work was supported by the National Natural Science Foundation of China (No. 12202001), Doctoral initiation fund (No. 2020QDZ08), the Anhui Provincial Natural Science Foundation (Grant No. 2008085QE245), the Natural Science Research Project of Higher Education Institutions in Anhui Province (KJ2019A0747).
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Li, C., Song, Z., Xia, G. et al. Analysis of Strong Stress Concentrations of Key Joints for Super-Spanned Steel Truss Bridges. KSCE J Civ Eng 27, 2921–2929 (2023). https://doi.org/10.1007/s12205-023-0080-6
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DOI: https://doi.org/10.1007/s12205-023-0080-6