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Dynamic performance of RC beam-column substructures under the scenario of the loss of a corner column - experimental results

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Dynamic performance of RC beam-column substructures under the scenario of the loss of a corner column - experimental results

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Title: Dynamic performance of RC beam-column substructures under the scenario of the loss of a corner column - experimental results
Author: Kai, Qian; Li, Bing
Copyright year: 2012
Abstract: Six one-third scale reinforced concrete (RC) beam-column substructures, each with different design detail, span length and span aspect ratio, were designed and tested to investigate the dynamic load redistribution performance of RC substructures following predefined initial damage. The initial damage was caused by the sudden removal of the corner support. The tested variables include: the longitudinal and transverse reinforcement ratio in the beams, columns and joints, design span length and span aspect ratio. Extensive instrumentation was installed in predetermined locations on the tested specimens prior to conducting the tests, recording data such as acceleration, velocity and displacement distribution. The histories of the bending moments, as well as the vertical and horizontal reaction forces at the fixed supports were also noted. The test results indicated that the column removal apparatus was effective and confirmed that the design span length significantly affected the capability of the frames to resist progressive collapse. Furthermore, it was demonstrated that seismically detailed specimens could mount a more robust performance in resisting progressive collapse.
Subject: DRNTU::Engineering::Civil engineering::Structures and design
Type: Journal Article
Series/ Journal Title: Engineering structures
School: School of Civil and Environmental Engineering
Rights: © 2012 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Engineering structures, Elsevier. 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 published version is available at: [DOI: http://dx.doi.org.ezlibproxy1.ntu.edu.sg/10.1016/j.engstruct.2012.04.016].

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