Residual axial capacity of reinforced concrete columns with simulated blast damage

Two specimen series [limited seismic (LS) and nonseismic (NS)] were subjected to quasistatic loadings to evaluate the residual axial capacity of blast-damaged reinforced concrete (RC) columns. A validated numerical model was used to predict the residual lateral deflection of RC columns subjected to...

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Main Authors: Li, Bing, Nair, Anand, Kai, Qian
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2012
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Online Access:https://hdl.handle.net/10356/94134
http://hdl.handle.net/10220/8188
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-941342021-01-06T06:21:31Z Residual axial capacity of reinforced concrete columns with simulated blast damage Li, Bing Nair, Anand Kai, Qian School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Structures and design Two specimen series [limited seismic (LS) and nonseismic (NS)] were subjected to quasistatic loadings to evaluate the residual axial capacity of blast-damaged reinforced concrete (RC) columns. A validated numerical model was used to predict the residual lateral deflection of RC columns subjected to an explosive attack. Three hydraulic actuators were installed horizontally to reproduce the target residual lateral deflection as predicted through this numerical model. Another two hydraulic actuators were installed vertically to apply the axial load and measure the residual axial capacity of the damaged columns. The effects of parameters such as axial loading and the transverse reinforcement ratio are investigated through this study. The results obtained from the experimental study showed the improved performance that LS detailing provided to RC columns to resist blast or lateral loads. This subsequently led columns detailed with a higher transverse reinforcement ratio to have an increased residual axial capacity when laterally damaged, as compared with the NS detailed specimens. Axial load (service load) on the columns was also found to affect the residual deflection profile and residual axial capacity of the columns after the specified blast event. The validity range of a previously published function to determine blast-damaged residual axial capacity of RC columns is refined through the results obtained. Accepted version 2012-06-05T03:13:08Z 2019-12-06T18:51:18Z 2012-06-05T03:13:08Z 2019-12-06T18:51:18Z 2012 2012 Journal Article Li, B., Nair, A., & Kai, Q. (2012). Residual Axial Capacity of Reinforced Concrete Columns with Simulated Blast Damage. ASCE Journal of Performance of constructed facilities, 26(3), 287. 0887-3828 https://hdl.handle.net/10356/94134 http://hdl.handle.net/10220/8188 10.1061/(ASCE)CF.1943-5509.0000210 en Journal of Performance of Constructed Facilities Journal of performance of constructed facilities © 2012 American Society of Civil Engineers. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of performance of constructed facilities, American Society of Civil Engineers. 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: http://link.aip.org/link/doi/10.1061/(ASCE)CF.1943-5509.0000210. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Civil engineering::Structures and design
spellingShingle DRNTU::Engineering::Civil engineering::Structures and design
Li, Bing
Nair, Anand
Kai, Qian
Residual axial capacity of reinforced concrete columns with simulated blast damage
description Two specimen series [limited seismic (LS) and nonseismic (NS)] were subjected to quasistatic loadings to evaluate the residual axial capacity of blast-damaged reinforced concrete (RC) columns. A validated numerical model was used to predict the residual lateral deflection of RC columns subjected to an explosive attack. Three hydraulic actuators were installed horizontally to reproduce the target residual lateral deflection as predicted through this numerical model. Another two hydraulic actuators were installed vertically to apply the axial load and measure the residual axial capacity of the damaged columns. The effects of parameters such as axial loading and the transverse reinforcement ratio are investigated through this study. The results obtained from the experimental study showed the improved performance that LS detailing provided to RC columns to resist blast or lateral loads. This subsequently led columns detailed with a higher transverse reinforcement ratio to have an increased residual axial capacity when laterally damaged, as compared with the NS detailed specimens. Axial load (service load) on the columns was also found to affect the residual deflection profile and residual axial capacity of the columns after the specified blast event. The validity range of a previously published function to determine blast-damaged residual axial capacity of RC columns is refined through the results obtained.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Li, Bing
Nair, Anand
Kai, Qian
format Article
author Li, Bing
Nair, Anand
Kai, Qian
author_sort Li, Bing
title Residual axial capacity of reinforced concrete columns with simulated blast damage
title_short Residual axial capacity of reinforced concrete columns with simulated blast damage
title_full Residual axial capacity of reinforced concrete columns with simulated blast damage
title_fullStr Residual axial capacity of reinforced concrete columns with simulated blast damage
title_full_unstemmed Residual axial capacity of reinforced concrete columns with simulated blast damage
title_sort residual axial capacity of reinforced concrete columns with simulated blast damage
publishDate 2012
url https://hdl.handle.net/10356/94134
http://hdl.handle.net/10220/8188
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