A DETAIL DESIGN OF RCC T-GIRDER BRIDGE OVER GHATTA (SALIM) KHOLA

Abstract

In a developing country like Nepal, Bridge building process is affected by various economic, geographic, technical and social factors. The primary focus remains on economy rather than aesthetic and architectural discoveries. Lack of proper road network access in overall country has demanded highly qualified bridge engineers and need of construction of extensive amount of road bridges throughout the country. Project works are essential to equip the students with skills required to synthesize comprehensively the knowledge gained during course work for practical application of civil engineering discipline in real life. Besides the objective of this project as to acquire the motive of partial fulfillment of acquiring Bachelor’s Degree in Civil Engineering, we believe that we have acquired extensive skills, ideas and motivation for conducting solution of any Civil Engineering problem. The undertaken group project “A DETAIL DESIGN OF RCC T-GIRDER BRIDGE OVER GHATTA (SALIM) KHOLA” is an intermediate lane local bridge with single span of 25m. The structure consists of single span, two similar abutments and foundation. The structure has been idealized, analyzed and designed according to standard practice of building local bridges protocols strictly incorporating IRC code provisions. The analysis of super structural members has been done for two basic load combinations, viz. dead load and live load (IRC Class A and IRC 70R Loadings) along with its impact effect, Seismic load combinations, braking effect have been considered for structural members. One of the major causes of failure of any structure is its improper analysis and design. This project on detail structural design of RCC T-Girder Bridge over Ghatta (Salim) Khola presents the analysis and design of structural components of Ghatta (Salim) Khola Bridge. After acquiring the preliminary design of bridge, the detail structural design is carried out with reference to IRC: 112-2011, IRC: 6-2017, IRC: 78-2014, IRC: SP: 69-2011, IRC: 5, SP: 13-2020, IRC: 83-2015(Part I, Part II) and NBS-2067. The load acting comprises of dead load, live load, seismic load. After identification of evaluations of all loads acting on the bridge design of structure is done manually. The detail design of structural element is also based on the provision provided by the relevant code. After detail design the results are tabulated and the structural drawings (detailing) are shown. Thus detail design is performed