Load resistance and failure modes of GFRP composite strengthened hollow core slabs with openings
Precast hollow core slabs are mainly used in buildings as slab elements apart from their usage as bridge decks. Due to various structural or service requirements, openings are provided in these slabs. Provision of openings reduces the strength, stiffness and also change the failure modes of the holl...
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| Veröffentlicht in: | Materials and structures 2017-02, Vol.50 (1), p.1-14, Article 3 |
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| creator | Pachalla, Sameer Kumar Sarma Prakash, S. Suriya |
| description | Precast hollow core slabs are mainly used in buildings as slab elements apart from their usage as bridge decks. Due to various structural or service requirements, openings are provided in these slabs. Provision of openings reduces the strength, stiffness and also change the failure modes of the hollow core slabs. Therefore, it is essential to strengthen the slabs so that the load deformation behaviour and failure mode does not change drastically. The objective of this study is to understand the behaviour of glass fibre reinforced polymer (GFRP) strengthened hollow core slabs with openings by external bonding technique. Ten full scale hollow core slabs with and without openings are tested to evaluate the effect of openings and effectiveness of GFRP strengthening. Shear span to depth ratio (
a
/
d
) and location of openings are considered as variables. It was observed that, provision of opening reduced the ultimate strength by about 43 % and GFRP strengthening of this slab restored strength to 87 % of the control specimen. Test results indicate that GFRP strengthening is an effective and cost viable technique for restoring the strength and stiffness of precast prestressed hollow core slabs due to openings. |
| doi_str_mv | 10.1617/s11527-016-0883-8 |
| format | Article |
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a
/
d
) and location of openings are considered as variables. It was observed that, provision of opening reduced the ultimate strength by about 43 % and GFRP strengthening of this slab restored strength to 87 % of the control specimen. Test results indicate that GFRP strengthening is an effective and cost viable technique for restoring the strength and stiffness of precast prestressed hollow core slabs due to openings.</description><identifier>ISSN: 1359-5997</identifier><identifier>EISSN: 1871-6873</identifier><identifier>DOI: 10.1617/s11527-016-0883-8</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Bonding ; Building construction ; Building Materials ; Civil Engineering ; Engineering ; Failure modes ; Glass fiber reinforced plastics ; Machines ; Manufacturing ; Materials Science ; Original Article ; Processes ; Slabs ; Solid Mechanics ; Stiffness ; Strength ; Strengthening ; Theoretical and Applied Mechanics ; Ultimate tensile strength</subject><ispartof>Materials and structures, 2017-02, Vol.50 (1), p.1-14, Article 3</ispartof><rights>RILEM 2016</rights><rights>Materials and Structures is a copyright of Springer, 2017.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c349t-b6d2c20a77a612dfbd01efa8c0a1c1b23051c9f5f8f57cc3c3ff13c3a734a5bc3</citedby><cites>FETCH-LOGICAL-c349t-b6d2c20a77a612dfbd01efa8c0a1c1b23051c9f5f8f57cc3c3ff13c3a734a5bc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1617/s11527-016-0883-8$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1617/s11527-016-0883-8$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Pachalla, Sameer Kumar Sarma</creatorcontrib><creatorcontrib>Prakash, S. Suriya</creatorcontrib><title>Load resistance and failure modes of GFRP composite strengthened hollow core slabs with openings</title><title>Materials and structures</title><addtitle>Mater Struct</addtitle><description>Precast hollow core slabs are mainly used in buildings as slab elements apart from their usage as bridge decks. Due to various structural or service requirements, openings are provided in these slabs. Provision of openings reduces the strength, stiffness and also change the failure modes of the hollow core slabs. Therefore, it is essential to strengthen the slabs so that the load deformation behaviour and failure mode does not change drastically. The objective of this study is to understand the behaviour of glass fibre reinforced polymer (GFRP) strengthened hollow core slabs with openings by external bonding technique. Ten full scale hollow core slabs with and without openings are tested to evaluate the effect of openings and effectiveness of GFRP strengthening. Shear span to depth ratio (
a
/
d
) and location of openings are considered as variables. It was observed that, provision of opening reduced the ultimate strength by about 43 % and GFRP strengthening of this slab restored strength to 87 % of the control specimen. Test results indicate that GFRP strengthening is an effective and cost viable technique for restoring the strength and stiffness of precast prestressed hollow core slabs due to openings.</description><subject>Bonding</subject><subject>Building construction</subject><subject>Building Materials</subject><subject>Civil Engineering</subject><subject>Engineering</subject><subject>Failure modes</subject><subject>Glass fiber reinforced plastics</subject><subject>Machines</subject><subject>Manufacturing</subject><subject>Materials Science</subject><subject>Original Article</subject><subject>Processes</subject><subject>Slabs</subject><subject>Solid Mechanics</subject><subject>Stiffness</subject><subject>Strength</subject><subject>Strengthening</subject><subject>Theoretical and Applied Mechanics</subject><subject>Ultimate tensile strength</subject><issn>1359-5997</issn><issn>1871-6873</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1kE1LAzEQhhdRsH78AG8BL15WM5tmkz1KsVUoKKLnmM0m7ZbdZM1sKf57U-pBBC-TgTzvy_Bk2RXQWyhB3CEAL0ROocyplCyXR9kEpIC8lIIdp53xKudVJU6zM8QNpawCKCbZxzLohkSLLY7aG0u0b4jTbbeNlvShsUiCI4v56wsxoR8CtqMlOEbrV-PaetuQdei6sEu_KYCdrpHs2nFNwmB961d4kZ043aG9_HnPs_f5w9vsMV8-L55m98vcsGk15nXZFKagWghdQtG4uqFgnZaGajBQF4xyMJXjTjoujGGGOQdpasGmmteGnWc3h94hhs-txVH1LRrbddrbsEUFkvESKlHxhF7_QTdhG326LlFAU2PBRKLgQJkYEKN1aohtr-OXAqr2ztXBuUrO1d65kilTHDKYWL-y8Vfzv6FvB3CFPA</recordid><startdate>20170201</startdate><enddate>20170201</enddate><creator>Pachalla, Sameer Kumar Sarma</creator><creator>Prakash, S. 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a
/
d
) and location of openings are considered as variables. It was observed that, provision of opening reduced the ultimate strength by about 43 % and GFRP strengthening of this slab restored strength to 87 % of the control specimen. Test results indicate that GFRP strengthening is an effective and cost viable technique for restoring the strength and stiffness of precast prestressed hollow core slabs due to openings.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1617/s11527-016-0883-8</doi><tpages>14</tpages></addata></record> |
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| source | SpringerNature Journals |
| subjects | Bonding Building construction Building Materials Civil Engineering Engineering Failure modes Glass fiber reinforced plastics Machines Manufacturing Materials Science Original Article Processes Slabs Solid Mechanics Stiffness Strength Strengthening Theoretical and Applied Mechanics Ultimate tensile strength |
| title | Load resistance and failure modes of GFRP composite strengthened hollow core slabs with openings |
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