Alternate load paths in mitigating progressive collapse of RC building structures subjected to column loss scenarios
Tan, Kang Hai
Pham, Xuan Dat
Date of Issue2010
Design and Analysis of Protective Structures (3rd : 2010 : Singapore)
School of Civil and Environmental Engineering
Protective Technology Research Centre
Column loss scenarios result in high potential for progressive collapse of RC building structures since the gravity loads are severely amplified by both doubling-of-span and dynamic factors. Under such a situation, tensile membrane action and catenary action with steel reinforcement carrying the vertical loads by acting as a kind of tensile net are the last line of defence mechanism just before the final collapse kicks in. For years, much attention has been devoted for improving these two alternate load paths in order to mitigate progressive collapse of RC building structures subjected to column loss scenarios. This paper introduces an experimental programme conducted on mobilising these two alternate load paths under two critical scenarios: External and penultimate column loss scenarios. Currently, the test programme is underway in Nanyang Technological University (NTU), Singapore.
DRNTU::Engineering::Civil engineering::Structures and design
© 2010 Design and Analysis of Protective Structures. This is the author created version of a work that has been peer reviewed and accepted for publication by Design and Analysis of Protective Structures. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The official conference website is: http://www.cee.ntu.edu.sg/Conferences/daps2010/index.htm.