Experimental and analytical analysis of pretensioned inverted T-beam with circular web openings

This paper presents the results of a research project aimed at providing standard circular web openings to the popular precast pretensioned inverted T-beam. The main advantage of these openings is that mechanical equipment can pass through the webs of inverted T-beams. Another advantage is a slight...

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Main Authors: Cheng, Hock Tian, Mohammed, Bashar S., Kamal Nasharuddin, Mustapha
Format: Article
Language:English
Published: Springer 2009
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Online Access:http://umpir.ump.edu.my/id/eprint/28114/1/Experimental%20and%20analytical%20analysis%20of%20pretensioned%20inverted%20T-beam%20.pdf
http://umpir.ump.edu.my/id/eprint/28114/
https://doi.org/10.1007/s10999-009-9096-4
https://doi.org/10.1007/s10999-009-9096-4
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Institution: Universiti Malaysia Pahang
Language: English
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spelling my.ump.umpir.281142020-05-05T07:49:39Z http://umpir.ump.edu.my/id/eprint/28114/ Experimental and analytical analysis of pretensioned inverted T-beam with circular web openings Cheng, Hock Tian Mohammed, Bashar S. Kamal Nasharuddin, Mustapha TA Engineering (General). Civil engineering (General) TH Building construction This paper presents the results of a research project aimed at providing standard circular web openings to the popular precast pretensioned inverted T-beam. The main advantage of these openings is that mechanical equipment can pass through the webs of inverted T-beams. Another advantage is a slight reduction in inverted T-beams weight that would improve the demand on the supporting frame both under gravity loading and seismic excitation. Opening size and placement and required materials strengths were investigated. Also, the effects of using straight tendons, rather than two-point depression and one-point depression, of the prestressing strands were investigated. In this paper the nonlinear analysis and design of simply supported pre-tensioned inverted T-beam with circular web openings are presented. Two design parameters are varied such as: opening location and numbers of openings. The results from a nonlinear finite element analysis are substantiated by test results from five pretensioned inverted T-beam with web opening and one solid beam. Good agreement is shown between the theoretical and the experimental results. The effect of openings on the behavior of such beams at different stages of loading is presented. The test results obtained from this investigation show that the performance of the specimens with web openings was almost identical to that of the specimen without web openings. A simple design method for estimating the cracking load for the different crack patterns is proposed. Based on these tests, design recommendations are made that will allow the addition of web openings to inverted T-beam with minimal additional calculation. Springer 2009-05 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/28114/1/Experimental%20and%20analytical%20analysis%20of%20pretensioned%20inverted%20T-beam%20.pdf Cheng, Hock Tian and Mohammed, Bashar S. and Kamal Nasharuddin, Mustapha (2009) Experimental and analytical analysis of pretensioned inverted T-beam with circular web openings. International Journal of Mechanics and Materials in Design, 5 (2). pp. 203-215. ISSN 1569-1713 https://doi.org/10.1007/s10999-009-9096-4 https://doi.org/10.1007/s10999-009-9096-4
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
TH Building construction
spellingShingle TA Engineering (General). Civil engineering (General)
TH Building construction
Cheng, Hock Tian
Mohammed, Bashar S.
Kamal Nasharuddin, Mustapha
Experimental and analytical analysis of pretensioned inverted T-beam with circular web openings
description This paper presents the results of a research project aimed at providing standard circular web openings to the popular precast pretensioned inverted T-beam. The main advantage of these openings is that mechanical equipment can pass through the webs of inverted T-beams. Another advantage is a slight reduction in inverted T-beams weight that would improve the demand on the supporting frame both under gravity loading and seismic excitation. Opening size and placement and required materials strengths were investigated. Also, the effects of using straight tendons, rather than two-point depression and one-point depression, of the prestressing strands were investigated. In this paper the nonlinear analysis and design of simply supported pre-tensioned inverted T-beam with circular web openings are presented. Two design parameters are varied such as: opening location and numbers of openings. The results from a nonlinear finite element analysis are substantiated by test results from five pretensioned inverted T-beam with web opening and one solid beam. Good agreement is shown between the theoretical and the experimental results. The effect of openings on the behavior of such beams at different stages of loading is presented. The test results obtained from this investigation show that the performance of the specimens with web openings was almost identical to that of the specimen without web openings. A simple design method for estimating the cracking load for the different crack patterns is proposed. Based on these tests, design recommendations are made that will allow the addition of web openings to inverted T-beam with minimal additional calculation.
format Article
author Cheng, Hock Tian
Mohammed, Bashar S.
Kamal Nasharuddin, Mustapha
author_facet Cheng, Hock Tian
Mohammed, Bashar S.
Kamal Nasharuddin, Mustapha
author_sort Cheng, Hock Tian
title Experimental and analytical analysis of pretensioned inverted T-beam with circular web openings
title_short Experimental and analytical analysis of pretensioned inverted T-beam with circular web openings
title_full Experimental and analytical analysis of pretensioned inverted T-beam with circular web openings
title_fullStr Experimental and analytical analysis of pretensioned inverted T-beam with circular web openings
title_full_unstemmed Experimental and analytical analysis of pretensioned inverted T-beam with circular web openings
title_sort experimental and analytical analysis of pretensioned inverted t-beam with circular web openings
publisher Springer
publishDate 2009
url http://umpir.ump.edu.my/id/eprint/28114/1/Experimental%20and%20analytical%20analysis%20of%20pretensioned%20inverted%20T-beam%20.pdf
http://umpir.ump.edu.my/id/eprint/28114/
https://doi.org/10.1007/s10999-009-9096-4
https://doi.org/10.1007/s10999-009-9096-4
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