Fasteners in Steel Fiber Reinforced Concrete Subjected to Increased Loading Rates
Increased loading rates on fasteners may be caused by high ground accelerations as a consequence of e.g., nuclear explosions, earthquakes or car collisions. It was concluded by Hoehler et al. (2006) that fasteners under rapid loading rates show an increased ultimate resistance in the concrete domina...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-12-01
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| Series: | Fibers |
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| Online Access: | https://www.mdpi.com/2079-6439/6/4/93 |
| _version_ | 1828112579745021952 |
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| author | Boglárka Bokor Máté Tóth Akanshu Sharma |
| author_facet | Boglárka Bokor Máté Tóth Akanshu Sharma |
| author_sort | Boglárka Bokor |
| collection | DOAJ |
| description | Increased loading rates on fasteners may be caused by high ground accelerations as a consequence of e.g., nuclear explosions, earthquakes or car collisions. It was concluded by Hoehler et al. (2006) that fasteners under rapid loading rates show an increased ultimate resistance in the concrete dominant failure modes or the ultimate resistance is at least as large as under quasi-static loading. Due to the increased demand on using fasteners in steel fiber reinforced concrete (SFRC), it is intended to show how the ultimate concrete cone capacity of fasteners changes under higher than quasi-static loading rate in normal plain concrete (PC) and in SFRC. This paper presents the results of an extensive experimental program carried out on single fasteners loaded in tension in normal plain concrete and in SFRC. The test series were conducted using a servo-hydraulic loading cylinder. The tests were performed in displacement control with a programmed ramp speed of 1, 100, 1000, and 3500 mm/min. This corresponded to calculated initial loading rates ranging between 0.4 and 1600 kN/s. The results of the tension tests clearly show that the rate-dependent behavior of fasteners in SFRC with 30 and 50 kg/m<sup>3</sup> hooked-end-type fibers fits well to the previously reported rate-dependent concrete cone behavior in normal plain concrete. Additionally, a positive influence of the fibers on the concrete cone capacity is clearly visible. |
| first_indexed | 2024-04-11T11:51:33Z |
| format | Article |
| id | doaj.art-04163803e87b4c1a9c00c801dbb8b2e4 |
| institution | Directory Open Access Journal |
| issn | 2079-6439 |
| language | English |
| last_indexed | 2024-04-11T11:51:33Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fibers |
| spelling | doaj.art-04163803e87b4c1a9c00c801dbb8b2e42022-12-22T04:25:17ZengMDPI AGFibers2079-64392018-12-01649310.3390/fib6040093fib6040093Fasteners in Steel Fiber Reinforced Concrete Subjected to Increased Loading RatesBoglárka Bokor0Máté Tóth1Akanshu Sharma2Institute of Construction Materials, University of Stuttgart, Pfaffenwaldring 4, 70569 Stuttgart, GermanyInstitute of Construction Materials, University of Stuttgart, Pfaffenwaldring 4, 70569 Stuttgart, GermanyInstitute of Construction Materials, University of Stuttgart, Pfaffenwaldring 4, 70569 Stuttgart, GermanyIncreased loading rates on fasteners may be caused by high ground accelerations as a consequence of e.g., nuclear explosions, earthquakes or car collisions. It was concluded by Hoehler et al. (2006) that fasteners under rapid loading rates show an increased ultimate resistance in the concrete dominant failure modes or the ultimate resistance is at least as large as under quasi-static loading. Due to the increased demand on using fasteners in steel fiber reinforced concrete (SFRC), it is intended to show how the ultimate concrete cone capacity of fasteners changes under higher than quasi-static loading rate in normal plain concrete (PC) and in SFRC. This paper presents the results of an extensive experimental program carried out on single fasteners loaded in tension in normal plain concrete and in SFRC. The test series were conducted using a servo-hydraulic loading cylinder. The tests were performed in displacement control with a programmed ramp speed of 1, 100, 1000, and 3500 mm/min. This corresponded to calculated initial loading rates ranging between 0.4 and 1600 kN/s. The results of the tension tests clearly show that the rate-dependent behavior of fasteners in SFRC with 30 and 50 kg/m<sup>3</sup> hooked-end-type fibers fits well to the previously reported rate-dependent concrete cone behavior in normal plain concrete. Additionally, a positive influence of the fibers on the concrete cone capacity is clearly visible.https://www.mdpi.com/2079-6439/6/4/93fastenersconcrete conesteel fiber reinforced concreterate dependent behavior |
| spellingShingle | Boglárka Bokor Máté Tóth Akanshu Sharma Fasteners in Steel Fiber Reinforced Concrete Subjected to Increased Loading Rates Fibers fasteners concrete cone steel fiber reinforced concrete rate dependent behavior |
| title | Fasteners in Steel Fiber Reinforced Concrete Subjected to Increased Loading Rates |
| title_full | Fasteners in Steel Fiber Reinforced Concrete Subjected to Increased Loading Rates |
| title_fullStr | Fasteners in Steel Fiber Reinforced Concrete Subjected to Increased Loading Rates |
| title_full_unstemmed | Fasteners in Steel Fiber Reinforced Concrete Subjected to Increased Loading Rates |
| title_short | Fasteners in Steel Fiber Reinforced Concrete Subjected to Increased Loading Rates |
| title_sort | fasteners in steel fiber reinforced concrete subjected to increased loading rates |
| topic | fasteners concrete cone steel fiber reinforced concrete rate dependent behavior |
| url | https://www.mdpi.com/2079-6439/6/4/93 |
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