Analysis and Design of R.C.C T-Beam Bridge Superstructure by using Different Codes & Load Combination for Performance Assessment

Abstract

This study summarized comparative design and analysis of RCC T-Beam Bridge superstructure for Different Codes i.e., Indian Road Congress (IRC) codes and American Association of State Highway Transportation Officials (AASHTO) Specification Load Combinations for varying span length. The several codes are used to design the bridges. IRC 21-2000 used for designing bridges by working stress method (WSM), also IRC: 112-2011 introduced by Indian Road Congress for RCC and Pre- Stressed bridges by limit state method (LSM). Both the codes have different guidelines and procedure for design of bridges. This study based on IRC 112-2011 (LSM) and IRC: 6- 2017 is used for load considerations. In which this analysis depends on the analytical modelling by Finite Element Method (FEM) for in STAAD-Pro software and comparing the structural parameter Bending moment, Shear Force, Deflection and Area of Reinforcement for different girder span length 16M, 20M, 24M as per the IRC and AASHTO code. Class A & Class 70R consider from IRC 6-2017 and HS93 is the vehicular loading consider from AASHTO. Form the analysis understanding suitability design technique and the behavior of two-lane carriage way width of T- Beam bridge superstructure under different loading condition and by using different code and comparing the result, conclusions will be made that up to what extents similarities between both standards. Keywords: IRC: 21-2000, IRC: 112-2011, AASHTO (LRFD), STAAD-Pro.