Evaluation of punching shear strength of voided slabs considering the effect of the ratio b^sub 0^/d
Voided slabs have been used as an effective technique to replace the heavy reinforced-concrete solid slabs. In voided slabs, the punching shear strength varies according to the arrangement of voids around the column because voids intersecting a failure surface anywhere along its radial length can di...
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| Veröffentlicht in: | Engineering structures 2018-06, Vol.164, p.70 |
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| creator | Chung, Joo-Hong Bae, Baek-Il Choi, Hyun-Ki Jung, Hyung-Suk Choi, Chang-Sik |
| description | Voided slabs have been used as an effective technique to replace the heavy reinforced-concrete solid slabs. In voided slabs, the punching shear strength varies according to the arrangement of voids around the column because voids intersecting a failure surface anywhere along its radial length can directly reduce the punching shear strength and voids outside a failure surface can also reduce the punching shear strength by making the variation of shear stress around its perimeter. In this study, the punching shear strength of voided slabs was evaluated according to the arrangement of voids through experimental tests and numerical simulations. As a result, the factors on influencing the punching shear strength of voided slabs were determined as the void-based reduction of the cross-sectional area at the control perimeter and the ratio of the length of the control perimeter to the effective depth of the slab. Based on these influencing factors, a new method was developed to determine that the control perimeter section produces the smallest shear strength. This method can estimate the punching shear strength of voided slab systematically by assuming the location of the control perimeter at the solid region or voided region. |
| format | Article |
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In voided slabs, the punching shear strength varies according to the arrangement of voids around the column because voids intersecting a failure surface anywhere along its radial length can directly reduce the punching shear strength and voids outside a failure surface can also reduce the punching shear strength by making the variation of shear stress around its perimeter. In this study, the punching shear strength of voided slabs was evaluated according to the arrangement of voids through experimental tests and numerical simulations. As a result, the factors on influencing the punching shear strength of voided slabs were determined as the void-based reduction of the cross-sectional area at the control perimeter and the ratio of the length of the control perimeter to the effective depth of the slab. Based on these influencing factors, a new method was developed to determine that the control perimeter section produces the smallest shear strength. This method can estimate the punching shear strength of voided slab systematically by assuming the location of the control perimeter at the solid region or voided region.</description><identifier>ISSN: 0141-0296</identifier><identifier>EISSN: 1873-7323</identifier><language>eng</language><publisher>Kidlington: Elsevier BV</publisher><subject>Building construction ; Computer simulation ; Concrete slabs ; Failure surface ; Mathematical analysis ; Punching ; Punching shear ; Reinforced concrete ; Shear strength ; Shear stress ; Slabs ; Voids</subject><ispartof>Engineering structures, 2018-06, Vol.164, p.70</ispartof><rights>Copyright Elsevier BV Jun 1, 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781</link.rule.ids></links><search><creatorcontrib>Chung, Joo-Hong</creatorcontrib><creatorcontrib>Bae, Baek-Il</creatorcontrib><creatorcontrib>Choi, Hyun-Ki</creatorcontrib><creatorcontrib>Jung, Hyung-Suk</creatorcontrib><creatorcontrib>Choi, Chang-Sik</creatorcontrib><title>Evaluation of punching shear strength of voided slabs considering the effect of the ratio b^sub 0^/d</title><title>Engineering structures</title><description>Voided slabs have been used as an effective technique to replace the heavy reinforced-concrete solid slabs. 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In voided slabs, the punching shear strength varies according to the arrangement of voids around the column because voids intersecting a failure surface anywhere along its radial length can directly reduce the punching shear strength and voids outside a failure surface can also reduce the punching shear strength by making the variation of shear stress around its perimeter. In this study, the punching shear strength of voided slabs was evaluated according to the arrangement of voids through experimental tests and numerical simulations. As a result, the factors on influencing the punching shear strength of voided slabs were determined as the void-based reduction of the cross-sectional area at the control perimeter and the ratio of the length of the control perimeter to the effective depth of the slab. Based on these influencing factors, a new method was developed to determine that the control perimeter section produces the smallest shear strength. 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| identifier | ISSN: 0141-0296 |
| ispartof | Engineering structures, 2018-06, Vol.164, p.70 |
| issn | 0141-0296 1873-7323 |
| language | eng |
| recordid | cdi_proquest_journals_2065062003 |
| source | Elsevier ScienceDirect Journals |
| subjects | Building construction Computer simulation Concrete slabs Failure surface Mathematical analysis Punching Punching shear Reinforced concrete Shear strength Shear stress Slabs Voids |
| title | Evaluation of punching shear strength of voided slabs considering the effect of the ratio b^sub 0^/d |
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