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There are some limitations to the use of conventional flat plate web steel girders such as poor web stability and low buckling strength. To overcome these kinds of problems, the idea of using steel corrugated webs to girders has been introduced for achieving enhanced structural performance. The existing studies on bridge girders with steel corrugated webs are focused on single corrugated web girders only. According to previous researches, large forces generated on the girders result in buckling of single corrugated web. This paper focuses on Double corrugated web girders. The Double corrugated web girders can be strengthen either by providing stiffeners along with the corrugated web or by making the web as a composite one.This paper consists of investigations on Nonprismatic girders with Double Corrugated Stiffened Steel Web (DCSSWG) consist of two stiffened corrugated steel webs with steel flanges and also on Nonprismatic girders with Double Corrugated Composite Web (DCCWG) having UltraLightweight Cement Composite(ULCC) fill in the space between two corrugated steel webs. Structural performance of Single and Dual Non-prismatic girders with Double Corrugated Stiffened Steel Webs and Double Corrugated Composite Webs having different tapered ratios are investigated using ANSYS 16.1 software. The results obtained from the study have shown that Non prismatic girders with Double Corrugated Composite Webs show more strength and load carrying capacity as compared to Double Corrugated Stiffened Steel Webs for the same tapered ratio. The effect of Flat flanges (FF), Hollow flanges (HF) and Composite flanges (CF) on the performance of Non prismatic girder with Double Corrugated Composite Webs was also investigated under its static structural performance. The results showed that, Double Corrugated Composite webs in girders with UltraLightweight Cement Composite filled Hollow Section Flanges or Composite Flanges showed better strength, better load carrying capacity than that of Flat Flanges and Hollow Flanges. Keywords— Tapered ratio, Nonprismatic girder, Corrugated web

A Study on Structural Performance of Non-Prismatic Girders with Double Corrugated Stiffened Steel and Composite Webs