Local cover image
Local cover image
Image from Google Jackets

Justification of strong column weak beam theory by evaluation of ductility of column and beam sections using first principles

By: Contributor(s): Publication details: Thane ACC LTD 2024Edition: Vol.98(1), JanDescription: 27-42pSubject(s): Online resources: In: Indian Concrete Journal - ICJSummary: Ductility plays an important role in aseismic design of structures. Reinforced concrete sections can be made ductile in flexural mode of failure as other failure modes are brittle in nature. Ductility of beams are higher than those of columns which are subjected to axial forces along with flexure. The aim of the present work is to demonstrate the influence of axial forces on curvature ductility, and plastic rotation of reinforced concrete (RC) sections. In the present study curvature ductility values of a column section with reinforcement distributed on two sides have been evaluated and compared with the curvature ductility values of a similar section acting in flexure only, i.e., beam. Other parameters like reinforcement content and their distribution in the sections, effective covers, grades of steel and concrete have been considered similar for both the sections. Using the fundamental principles of limit state method curvature ductility and plastic rotations of beam and column sections have been evaluated. Results indicate that the curvature ductility and plastic rotations of columns are lower than the corresponding values for beams. Thus to ensure ductile failure, beams should fail first and not columns. This justifies the strong column-weak beam theory. Columns with higher levels of axial forces exhibit significantly less curvature ductility and plastic rotations than columns with lower levels of axial forces.
Tags from this library: No tags from this library for this title. Log in to add tags.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Status Barcode
Articles Abstract Database Articles Abstract Database School of Engineering & Technology (PG) Archieval Section Not for loan 2024-1507
Total holds: 0

Ductility plays an important role in aseismic design of structures. Reinforced concrete sections can be made ductile in flexural mode of failure as other failure modes are brittle in nature. Ductility of beams are higher than those of columns which are subjected to axial forces along with flexure. The aim of the present work is to demonstrate the influence of axial forces on curvature ductility, and plastic rotation of reinforced concrete (RC) sections. In the present study curvature ductility values of a column section with reinforcement distributed on two sides have been evaluated and compared with the curvature ductility values of a similar section acting in flexure only, i.e., beam. Other parameters like reinforcement content and their distribution in the sections, effective covers, grades of steel and concrete have been considered similar for both the sections. Using the fundamental principles of limit state method curvature ductility and plastic rotations of beam and column sections have been evaluated. Results indicate that the curvature ductility and plastic rotations of columns are lower than the corresponding values for beams. Thus to ensure ductile failure, beams should fail first and not columns. This justifies the strong column-weak beam theory. Columns with higher levels of axial forces exhibit significantly less curvature ductility and plastic rotations than columns with lower levels of axial forces.

There are no comments on this title.

to post a comment.

Click on an image to view it in the image viewer

Local cover image
Share
Unique Visitors hit counter Total Page Views free counter
Implemented and Maintained by AIKTC-KRRC (Central Library).
For any Suggestions/Query Contact to library or Email: librarian@aiktc.ac.in | Ph:+91 22 27481247
Website/OPAC best viewed in Mozilla Browser in 1366X768 Resolution.