• Improvements of IS 1343-2012 Shear Design Provisions Using a New Traditional Shear Database of Prestressed Concrete Members with Stirrups

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      https://www.ias.ac.in/article/fulltext/sadh/045/0214

    • Keywords

       

      Shear Design; Ultimate Shear Capacity; IS 1343-2012; Shear Database; Web-Shear; Flexure- Shear; Prestressed Concrete

    • Abstract

       

      Various national codes of practice play a crucial role in the development of the country’s infrastructure and should be developed based on principles of mechanics and experimental verification. Continuous monitoring of infrastructure and updating of relevant codes of practice at regular intervals is essential towithstand the ever-increasing demand of the country’s infrastructure. In the present study, the shear design provisions of prestressed concrete (PC) in IS 1343-2012 have been reviewed. The assumptions used in the formulations of the existing shear design equations in IS 1343-2012 have been discussed. The present study reveals that the IS 1343-2012 shear design provisions, which are based on old test data, are too conservative and are unable to distinguish the two major modes of traditional shear failure, namely web-shear and flexure-shear.Modifications for the existing IS 1343-2012 shear design equations have been proposed to improve the shear strength estimation of PC members and also to distinguish between the web-shear and flexure-shear failure modes. A detailed comparison of existing IS 1343-2012 shear design provisions with the proposed modified shear strength equations has also been made with the help of a traditional shear database on PC members with stirrups.

    • Author Affiliations

       

      MALLIKARJUN PERUMALLA ARGHADEEP LASKAR1

      1. Department of Civil Engineering, Indian Institute of Technology Bombay, Bombay, India
    • Dates

       
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