Analysis and Design of Composite Single Span Psc-I Girder Bridge Using Midas Civil

Abstract

With the ever-increasing sophistication of the population and the usage of vehicles, the number of modern road and bridge construction projects in India is increasing. To facilitate traffic flow, composite bridges are increasingly being implemented on a wide scale for highway building. In addition, new technology and equipment were gradually applied to road and bridge building. But, at the same time, there are several flaws in the structures due to the high technical requirements of bridge building, particularly the composite type of sections. The paper discusses the analysis and design of the Composite Single Span PSC-I Girder Bridge under IRC loadings using MIDAS. The analysis was carried out to get various outputs such as bending moment, shear force, and time-dependent characteristics like creep and shrinkage. At the construction stage, the PSC (prestressed) design of the span is carried out according to IRC standards to get output parameters such as principal stresses for prestressing tendon. The design involves calculation of the section properties, primary and secondary moments, magnitude and location of the prestressing force, profile of the tendons, losses due to prestressing and shear stresses on the section. The structure is designed in accordance with IRC guidelines.