Enhanced Ultimate Shear Capacity of Concave Square Frustum-Shaped Wet Joint in Precast Steel–Concrete Composite Bridges
Wet joints are widely used in precast steel–concrete composite bridges to accelerate the construction of bridges, though a conventional wet joint usually has a poor ultimate shear capacity. To improve the shear capacity of the wet joint, a concave square frustum-shaped wet joint was proposed, and th...
| Main Authors: | , , , , |
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| Format: | Article |
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MDPI AG
2021-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/4/1915 |
| _version_ | 1797395748977901568 |
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| author | Fan Feng Fanglin Huang Weibin Wen Peng Ge Yong Tao |
| author_facet | Fan Feng Fanglin Huang Weibin Wen Peng Ge Yong Tao |
| author_sort | Fan Feng |
| collection | DOAJ |
| description | Wet joints are widely used in precast steel–concrete composite bridges to accelerate the construction of bridges, though a conventional wet joint usually has a poor ultimate shear capacity. To improve the shear capacity of the wet joint, a concave square frustum-shaped wet joint was proposed, and the failure modes and ultimate shear capacity were studied experimentally and numerically. Specimens with concave square frustum-shaped and conventional wet joints (labeled as S-SWJ and S-CWJ) were fabricated, and experiments were performed on them. The results showed that the ultimate shear capacity of S-SWJ was substantially enhanced compared to that of S-CWJ. To further explore the ultimate shear capacity of S-SWJ, the failure modes and the influences of concrete strength and shear key angle on the ultimate shear capacity were studied using a validated finite element (FE) model. Based on the FE analysis, the guidelines for obtaining a wet joint with desirable shear capacity are presented, which is useful for the design of wet joints with high ultimate shear capacity. |
| first_indexed | 2024-03-09T00:40:08Z |
| format | Article |
| id | doaj.art-fe18aae93c4e4b85bbe6f5a788b65764 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T00:40:08Z |
| publishDate | 2021-02-01 |
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| series | Applied Sciences |
| spelling | doaj.art-fe18aae93c4e4b85bbe6f5a788b657642023-12-11T17:56:27ZengMDPI AGApplied Sciences2076-34172021-02-01114191510.3390/app11041915Enhanced Ultimate Shear Capacity of Concave Square Frustum-Shaped Wet Joint in Precast Steel–Concrete Composite BridgesFan Feng0Fanglin Huang1Weibin Wen2Peng Ge3Yong Tao4School of Civil Engineering, Central South University, Changsha 410083, ChinaSchool of Civil Engineering, Central South University, Changsha 410083, ChinaSchool of Civil Engineering, Central South University, Changsha 410083, ChinaSchool of Civil Engineering, Central South University, Changsha 410083, ChinaSchool of Civil Engineering, Central South University, Changsha 410083, ChinaWet joints are widely used in precast steel–concrete composite bridges to accelerate the construction of bridges, though a conventional wet joint usually has a poor ultimate shear capacity. To improve the shear capacity of the wet joint, a concave square frustum-shaped wet joint was proposed, and the failure modes and ultimate shear capacity were studied experimentally and numerically. Specimens with concave square frustum-shaped and conventional wet joints (labeled as S-SWJ and S-CWJ) were fabricated, and experiments were performed on them. The results showed that the ultimate shear capacity of S-SWJ was substantially enhanced compared to that of S-CWJ. To further explore the ultimate shear capacity of S-SWJ, the failure modes and the influences of concrete strength and shear key angle on the ultimate shear capacity were studied using a validated finite element (FE) model. Based on the FE analysis, the guidelines for obtaining a wet joint with desirable shear capacity are presented, which is useful for the design of wet joints with high ultimate shear capacity.https://www.mdpi.com/2076-3417/11/4/1915precast steel–concrete composite bridgeswet jointfailure modesultimate shear capacity |
| spellingShingle | Fan Feng Fanglin Huang Weibin Wen Peng Ge Yong Tao Enhanced Ultimate Shear Capacity of Concave Square Frustum-Shaped Wet Joint in Precast Steel–Concrete Composite Bridges Applied Sciences precast steel–concrete composite bridges wet joint failure modes ultimate shear capacity |
| title | Enhanced Ultimate Shear Capacity of Concave Square Frustum-Shaped Wet Joint in Precast Steel–Concrete Composite Bridges |
| title_full | Enhanced Ultimate Shear Capacity of Concave Square Frustum-Shaped Wet Joint in Precast Steel–Concrete Composite Bridges |
| title_fullStr | Enhanced Ultimate Shear Capacity of Concave Square Frustum-Shaped Wet Joint in Precast Steel–Concrete Composite Bridges |
| title_full_unstemmed | Enhanced Ultimate Shear Capacity of Concave Square Frustum-Shaped Wet Joint in Precast Steel–Concrete Composite Bridges |
| title_short | Enhanced Ultimate Shear Capacity of Concave Square Frustum-Shaped Wet Joint in Precast Steel–Concrete Composite Bridges |
| title_sort | enhanced ultimate shear capacity of concave square frustum shaped wet joint in precast steel concrete composite bridges |
| topic | precast steel–concrete composite bridges wet joint failure modes ultimate shear capacity |
| url | https://www.mdpi.com/2076-3417/11/4/1915 |
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