Seismic evaluation of joints before and after retrofitting: Seismic evaluation of RC beam column joint (t-joint) strengthened with FRP wrapping under cyclic load - Softcover

Gupta, Ankit

Softcover

ISBN 10: 3848498359 ISBN 13: 9783848498352

Publisher: LAP LAMBERT Academic Publishing, 2012

Synopsis

Earthquakes have shown that seismically deficient RC frames are particularly vulnerable to seismic action. Direct observation of damaged structures has shown that damage occurs usually at the beam-column joints with failure in bending or shear, depending on geometry and reinforcement distribution and type. After earthquake structures were classified as slightly damaged, thus being uneconomic to replace them, at least in the short term. For this reason suitable means of repairs of the beam column joint area are being studied. This book highlights the cyclic tests carried out on beam-column joint specimens, with different configurations of steel reinforcement detailing and strengthening by external FRP wrapping. One specimen was designed to comply with gravity load design code and the other with ductile detailing. Analytical modeling of the same was done with the help of the FEM package and its behavior with the actual one is compared. Strength and ductility of the undamaged and retrofitted specimens were compared. Behavior of confined specimen is also compared with the unconfined one. Effect of FRP wrapping is discussed as a viable option for restoring the strength of joints.

About this title

About the Author

Mr. Ankit Gupta has obtained his M.Tech. degree in Structural Dynamics from IIT Roorkee India. He is presently working as an Asst Prof in GLNAIT Mathura India. He is working on seismic retrofitting of structures. More than 40 research papers were published in Journals and Conferences. He holds memberships of various international organizations.

Edition details

• Publisher: LAP LAMBERT Academic Publishing
• Publication date: 2012
• ISBN 10: 3848498359
• ISBN 13: 9783848498352
• Binding: Paperback
• Language: English
• Number of pages: 104