Abstract
This paper attempts to utilize the newer aspects of the limit state design of T-beam bridge girders as mentioned in IRC: 112-2020 and highlights the noteworthy improvements over the commonly used conventional methods following IS: 456-2000. All provisions for the elastic analysis of two-way slabs under concentrated loads are considered. Certain ambiguous cases of positioning of wheel loads as well as partially uniformly distributed live load on slab panels based upon the guidelines of IRC: 06-2017 have been discussed. Depending on the loading pattern, reaction factors for the longitudinal girders are determined using Courbon’s method. Influence line diagram for the longitudinal girder has also been discussed for the purpose of evaluating critical design bending moment and shear force. A simple case study illustrates the support conditions for the cross girders and the use of weighted bending moment coefficients and bring out the key message to the designers.
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Mandal, A., Samanta, A.K., Ghosh, S. (2023). A Deep Insight into the Design Methodology of T-Beam Bridge Girders as Per the Guidelines of IRC: 112–2020 Compared to the Conventional Method. In: Hau, K.K., Gupta, A.K., Chaudhary, S., Gupta, T. (eds) Recent Advances in Structural Engineering and Construction Management . Lecture Notes in Civil Engineering, vol 277. Springer, Singapore. https://doi.org/10.1007/978-981-19-4040-8_17
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DOI: https://doi.org/10.1007/978-981-19-4040-8_17
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