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Showing posts from December 13, 2020

ENGINEERING LESSONS - EPISODE 9 - EFFECT OF SKEW ANGLES IN BRIDGES

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  EFFECT OF SKEW ANGLES IN 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. A Bridge built obliquely between the Supporting Spans are called as Skew Bridge. The angle between the normal to the center line of the bridge and the center line of the abutment is known as Skew Angle. Skew bridges are built where geometry cannot accommodate straight bridge. Alignment should be straight to facilitate high speed and safety requirements of the traffic, this resulted in increase in number of skew bridges. Study 1: This study comprises of Seismic analysis of Box & T Girder Bridges using Response Spectrum Method performed using SAP2000 varying skew angles of the Bridges. Responses of the Substructure, Girders and Deck are studied. An attempt was made to determine skew angle up to which skew bridges have comparable characteristics with straight bridges and al...

ENGINEERING LESSONS - EPISODE 8 - DESIGN FORCES IN METRO BRIDGES

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 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 desig...

MAGAZINES - HSR FEASIBILITY STUDY VOL 1 TO 6

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JOINT FEASIBILITY STUDY FOR MUMBAI-AHMEDABAD HSR CORRIDOR VOLUME I VOLUME II VOLUME III VOLUME IV VOLUME V VOLUME VI