Forensic to the Reinforced Concrete (RC) Structures at Library

This Forensic project has been proposed to investigate the reinforced concrete structure defect at library. There were found 65 points cracks and 20 points spalling in library such as only at reinforced concrete beam and slab part in first floor. The total of cracks which crack width less than 0.25...

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Published in:Journal of Advanced Research in Applied Sciences and Engineering Technology
Main Author: Kwong T.H.; Tawie R.; Romali S.R.
Format: Article
Language:English
Published: Penerbit Akademia Baru 2020
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85148875277&doi=10.37934%2faraset.19.1.614&partnerID=40&md5=f60a8069969377d0c5881d130779b7c4
id 2-s2.0-85148875277
spelling 2-s2.0-85148875277
Kwong T.H.; Tawie R.; Romali S.R.
Forensic to the Reinforced Concrete (RC) Structures at Library
2020
Journal of Advanced Research in Applied Sciences and Engineering Technology
19
1
10.37934/araset.19.1.614
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85148875277&doi=10.37934%2faraset.19.1.614&partnerID=40&md5=f60a8069969377d0c5881d130779b7c4
This Forensic project has been proposed to investigate the reinforced concrete structure defect at library. There were found 65 points cracks and 20 points spalling in library such as only at reinforced concrete beam and slab part in first floor. The total of cracks which crack width less than 0.25 mm is 63 points and the crack width between 0.25 mm to 5.00 mm is 2 points only. These cracks had categorized as fine cracks because the crack width not more than 5 mm. There was 21 samples Rebound Hammer test was random measured the existing concrete compressive strength of critical structures which six samples at beams, six samples at slabs, six samples at columns and three samples at staircase in library. The Rebound Hammer test shown that average mid-point strength at beam is 33 N/mm2, slab is 25 N/mm², column is 38 N/mm2 and staircase is 37 N/mm2. Based on the Eurocode 2, the minimum grade concrete required is 25N/mm2 to do the design for reinforced concrete structures, which all the existing concrete strength were achieved the minimum concrete strength. Finally, the Orion software are used to analysis and determine the size of steel reinforcement, the design found the required bar size of steel reinforcement at the middle span or continuous support is 2T16 & 2T25 or 2T20 & 2T25 but the existing steel reinforcement is 2T12 and 2T20 which the existing steel reinforcement could not be sustained the big loading that applied on the library. © 2020, Penerbit Akademia Baru. All rights reserved.
Penerbit Akademia Baru
24621943
English
Article
All Open Access; Bronze Open Access
author Kwong T.H.; Tawie R.; Romali S.R.
spellingShingle Kwong T.H.; Tawie R.; Romali S.R.
Forensic to the Reinforced Concrete (RC) Structures at Library
author_facet Kwong T.H.; Tawie R.; Romali S.R.
author_sort Kwong T.H.; Tawie R.; Romali S.R.
title Forensic to the Reinforced Concrete (RC) Structures at Library
title_short Forensic to the Reinforced Concrete (RC) Structures at Library
title_full Forensic to the Reinforced Concrete (RC) Structures at Library
title_fullStr Forensic to the Reinforced Concrete (RC) Structures at Library
title_full_unstemmed Forensic to the Reinforced Concrete (RC) Structures at Library
title_sort Forensic to the Reinforced Concrete (RC) Structures at Library
publishDate 2020
container_title Journal of Advanced Research in Applied Sciences and Engineering Technology
container_volume 19
container_issue 1
doi_str_mv 10.37934/araset.19.1.614
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85148875277&doi=10.37934%2faraset.19.1.614&partnerID=40&md5=f60a8069969377d0c5881d130779b7c4
description This Forensic project has been proposed to investigate the reinforced concrete structure defect at library. There were found 65 points cracks and 20 points spalling in library such as only at reinforced concrete beam and slab part in first floor. The total of cracks which crack width less than 0.25 mm is 63 points and the crack width between 0.25 mm to 5.00 mm is 2 points only. These cracks had categorized as fine cracks because the crack width not more than 5 mm. There was 21 samples Rebound Hammer test was random measured the existing concrete compressive strength of critical structures which six samples at beams, six samples at slabs, six samples at columns and three samples at staircase in library. The Rebound Hammer test shown that average mid-point strength at beam is 33 N/mm2, slab is 25 N/mm², column is 38 N/mm2 and staircase is 37 N/mm2. Based on the Eurocode 2, the minimum grade concrete required is 25N/mm2 to do the design for reinforced concrete structures, which all the existing concrete strength were achieved the minimum concrete strength. Finally, the Orion software are used to analysis and determine the size of steel reinforcement, the design found the required bar size of steel reinforcement at the middle span or continuous support is 2T16 & 2T25 or 2T20 & 2T25 but the existing steel reinforcement is 2T12 and 2T20 which the existing steel reinforcement could not be sustained the big loading that applied on the library. © 2020, Penerbit Akademia Baru. All rights reserved.
publisher Penerbit Akademia Baru
issn 24621943
language English
format Article
accesstype All Open Access; Bronze Open Access
record_format scopus
collection Scopus
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