ENGINEERING LESSONS - EPISODE 8 - DESIGN FORCES IN METRO BRIDGES

 DESIGN FORCES IN METRO BRIDGES

This Article is a compilation of the below Technical Papers, only the Essence of the Papers are provided here for quick grab in this section, detail report is attached below.

I Girder of span 25m & Box girder of span 40m of metro bridge were considered. Analysis of substructure and superstructure for all static and dynamic loads as per various code and then a comparative study has been done between design forces.

IRS Code, EURO Code, & California high speed rail authority guidelines are used for comparative Codal References.

IRS: CBC suggests higher partial safety factors for dead load, SIDL and live load in load combinations. Therefore, moment, shear force calculated as per IRS: CBC at superstructure are larger as compared to Euro-code and California high speed rail authority guidelines.

Seismic forces calculated on the pier as per IRS - RDSO guidelines for seismic design of railway bridges, are same in the longitudinal direction and more in the transverse direction as compared to IRC 6.

Wind forces calculated at superstructure using IRS Bridge rules is less as compared to EURO Code & California high speed rail guidelines.

Comparison of Design Forces for Metro Rail Bridges

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