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Article: Service load analysis of unbonded partially prestressed concrete members
Title | Service load analysis of unbonded partially prestressed concrete members |
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Authors | |
Issue Date | 2005 |
Publisher | Thomas Telford (ICE Publishing). The Journal's web site is located at http://www.concrete-research.com |
Citation | Magazine Of Concrete Research, 2005, v. 57 n. 4, p. 199-209 How to Cite? |
Abstract | In the design of unbonded partially prestressed concrete (UPPC) members, it is necessary to estimate the stresses in steel and concrete in order to satisfy the requirements of the serviceability limit state. A numerical method has been developed to predict the response of UPPC beams under service load, and the results agree well with experimental results reported in the technical literature. A parametric study has been undertaken to evaluate the variation of stress in prestressed steel under service load as well as the ratio of length of equivalent deformation region to the neutral axis depth at critical section. Results show that this ratio is not sensitive to the variation of the combined reinforcement index. From the moment of application of load to the cracking of the beam, and until the yielding of non-prestressed steel, this ratio is fairly stable and it can be taken as a constant. With the determination of this ratio, an approximate cubic equation similar to that used for cracked section analysis of bonded partially prestressed members is established. Predictions of stresses under service load are in good agreement with available test data. © 2005 Thomas Telford Ltd. |
Persistent Identifier | http://hdl.handle.net/10722/71501 |
ISSN | 2023 Impact Factor: 1.8 2023 SCImago Journal Rankings: 0.570 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Au, FTK | en_HK |
dc.contributor.author | Du, JS | en_HK |
dc.contributor.author | Cheung, YK | en_HK |
dc.date.accessioned | 2010-09-06T06:32:34Z | - |
dc.date.available | 2010-09-06T06:32:34Z | - |
dc.date.issued | 2005 | en_HK |
dc.identifier.citation | Magazine Of Concrete Research, 2005, v. 57 n. 4, p. 199-209 | en_HK |
dc.identifier.issn | 0024-9831 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/71501 | - |
dc.description.abstract | In the design of unbonded partially prestressed concrete (UPPC) members, it is necessary to estimate the stresses in steel and concrete in order to satisfy the requirements of the serviceability limit state. A numerical method has been developed to predict the response of UPPC beams under service load, and the results agree well with experimental results reported in the technical literature. A parametric study has been undertaken to evaluate the variation of stress in prestressed steel under service load as well as the ratio of length of equivalent deformation region to the neutral axis depth at critical section. Results show that this ratio is not sensitive to the variation of the combined reinforcement index. From the moment of application of load to the cracking of the beam, and until the yielding of non-prestressed steel, this ratio is fairly stable and it can be taken as a constant. With the determination of this ratio, an approximate cubic equation similar to that used for cracked section analysis of bonded partially prestressed members is established. Predictions of stresses under service load are in good agreement with available test data. © 2005 Thomas Telford Ltd. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Thomas Telford (ICE Publishing). The Journal's web site is located at http://www.concrete-research.com | en_HK |
dc.relation.ispartof | Magazine of Concrete Research | en_HK |
dc.rights | Magazine of Concrete Research. Copyright © Thomas Telford Ltd. | en_HK |
dc.rights | Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees | - |
dc.title | Service load analysis of unbonded partially prestressed concrete members | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0024-9831&volume=57&issue=4&spage=199&epage=209&date=2005&atitle=Service+Load+Analysis+of+Unbonded+Partially+Prestressed+Concrete+Members | en_HK |
dc.identifier.email | Au, FTK:francis.au@hku.hk | en_HK |
dc.identifier.email | Cheung, YK:hreccyk@hkucc.hku.hk | en_HK |
dc.identifier.authority | Au, FTK=rp00083 | en_HK |
dc.identifier.authority | Cheung, YK=rp00104 | en_HK |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1680/macr.57.4.199.62953 | en_HK |
dc.identifier.scopus | eid_2-s2.0-18844393162 | en_HK |
dc.identifier.hkuros | 102065 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-18844393162&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 57 | en_HK |
dc.identifier.issue | 4 | en_HK |
dc.identifier.spage | 199 | en_HK |
dc.identifier.epage | 209 | en_HK |
dc.identifier.isi | WOS:000229271100002 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Au, FTK=7005204072 | en_HK |
dc.identifier.scopusauthorid | Du, JS=36442226500 | en_HK |
dc.identifier.scopusauthorid | Cheung, YK=7202111065 | en_HK |
dc.identifier.issnl | 0024-9831 | - |