EFFECT OF SKEW ANGLE ON PSC I GIRDER BY USING STAAD PRO
C S NAVEEN KUMAR
M.Tech (Computer Aided Structural Engineering), Department of Civil Engineering, JNTUA College of Engineering, Ananthapuramu-515002 , IN
Dr E ARUNAKANTHI
M.Tech (Computer Aided Structural Engineering), Department of Civil Engineering, JNTUA College of Engineering, Ananthapuramu-515002 , IN
Keywords: PSC bridge, IRC Class ‘A’ Loading, Class 70R Tracked and Wheeled Vehicles, Bending Moment, Torsional Moment, Transverse Moment and STAAD Pro V8i.
Abstract
The effect of a skew angle on single-span RC bridges and PSC bridges are analyzed by utilizing the grillage analysis & the results or outcomes are presented in this paper. Studies are carried out on pre-stressed concrete (PSC) bridge decks to study the influence of skew angle and type of loading. The grillage analysis results of skewed bridges are compared with that of reference to straight bridges for IRC Class A loading and Class 70R Tracked & Wheeled Vehicles. Also, comparative analysis of response of skewed PSC Slab Bridge decks with that of equivalent straight bridge decks is made. The variation of maximum longitudinal bending moment (BM), maximum transverse moment, maximum torsional moment and maximum longitudinal stresses with skew angles are studied for bridge deck replicas. The results obtained for Live load longitudinal bending moment’s decreases with an increase in skew angle, whereas a maximum transverse moment increase with an increase in skew angle & also maximum torsional moment increases with an increase in skew angle. The benefit of pre-stressing is reflected in considerable decrease in the longitudinal bending moment, transverse moment and longitudinal stresses. The whole structures or models are analysed with the help of STAAD Pro V8i Version.
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