Mechanical Behavior of High-Strength Bolted Joints Fabricated from Fire-Resistant Steel at Elevated Temperatures
The use of fire-resistant steel is an effective way to alleviate fire safety issues in steel structures. Considering the limited research on bolted joints fabricated from fire-resistant steel, this study presents the results of the experimental investigation on the mechanical behavior of 40 specimen...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/8265019 |
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| author | Yuedong Wang Xiaorun Li Peng Liu Changdong Wu Chuhan Liu Lijing Zeng Wentao He Tiantian Yin |
| author_facet | Yuedong Wang Xiaorun Li Peng Liu Changdong Wu Chuhan Liu Lijing Zeng Wentao He Tiantian Yin |
| author_sort | Yuedong Wang |
| collection | DOAJ |
| description | The use of fire-resistant steel is an effective way to alleviate fire safety issues in steel structures. Considering the limited research on bolted joints fabricated from fire-resistant steel, this study presents the results of the experimental investigation on the mechanical behavior of 40 specimens of bolted joints at room temperature and elevated temperatures (20°C∼700°C). These specimens are assembled with fire-resistant steel plates and fire-resistant high-strength bolts (or ordinary high-strength bolts). The mechanical behavior of these specimens was investigated, which included the failure mode, deformation performance, and degradation of bearing capacity. The experimental results show that the treatment of the friction surface (specifically, impeller blasting and sprayed hard quartz sand) has a negligible effect on the ultimate strength of specimens and a relatively significant effect on the slip strength. In addition, reduction factors of the tensile strength (KN) and slip strength (KS) for both fire-resistant bolt specimens and ordinary high-strength bolt specimens decrease with the increase in temperature, especially in the case of elevated temperatures ranging from 400°C to 700°C. Prediction models with different reliability degrees are proposed to calculate the degradation of tensile strength under elevated temperatures, which has the potential to be used for the fire-resistant design of steel connections and structures. |
| format | Article |
| id | doaj-art-7cf138b2b43244d5ae3a4a345f55d23d |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-7cf138b2b43244d5ae3a4a345f55d23d2025-02-03T01:24:37ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/8265019Mechanical Behavior of High-Strength Bolted Joints Fabricated from Fire-Resistant Steel at Elevated TemperaturesYuedong Wang0Xiaorun Li1Peng Liu2Changdong Wu3Chuhan Liu4Lijing Zeng5Wentao He6Tiantian Yin7Central Research Institute of Building and Construction Co. LtdChina Jingye Engineering Co. LtdYatai Construction Science & Technology Consulting Institute Co. Ltd.China Jingye Engineering Co. LtdChina Jingye Engineering Co. LtdCentral Research Institute of Building and Construction Co. LtdChina Jingye Engineering Co. LtdChina Jingye Engineering Co. LtdThe use of fire-resistant steel is an effective way to alleviate fire safety issues in steel structures. Considering the limited research on bolted joints fabricated from fire-resistant steel, this study presents the results of the experimental investigation on the mechanical behavior of 40 specimens of bolted joints at room temperature and elevated temperatures (20°C∼700°C). These specimens are assembled with fire-resistant steel plates and fire-resistant high-strength bolts (or ordinary high-strength bolts). The mechanical behavior of these specimens was investigated, which included the failure mode, deformation performance, and degradation of bearing capacity. The experimental results show that the treatment of the friction surface (specifically, impeller blasting and sprayed hard quartz sand) has a negligible effect on the ultimate strength of specimens and a relatively significant effect on the slip strength. In addition, reduction factors of the tensile strength (KN) and slip strength (KS) for both fire-resistant bolt specimens and ordinary high-strength bolt specimens decrease with the increase in temperature, especially in the case of elevated temperatures ranging from 400°C to 700°C. Prediction models with different reliability degrees are proposed to calculate the degradation of tensile strength under elevated temperatures, which has the potential to be used for the fire-resistant design of steel connections and structures.http://dx.doi.org/10.1155/2022/8265019 |
| spellingShingle | Yuedong Wang Xiaorun Li Peng Liu Changdong Wu Chuhan Liu Lijing Zeng Wentao He Tiantian Yin Mechanical Behavior of High-Strength Bolted Joints Fabricated from Fire-Resistant Steel at Elevated Temperatures Advances in Materials Science and Engineering |
| title | Mechanical Behavior of High-Strength Bolted Joints Fabricated from Fire-Resistant Steel at Elevated Temperatures |
| title_full | Mechanical Behavior of High-Strength Bolted Joints Fabricated from Fire-Resistant Steel at Elevated Temperatures |
| title_fullStr | Mechanical Behavior of High-Strength Bolted Joints Fabricated from Fire-Resistant Steel at Elevated Temperatures |
| title_full_unstemmed | Mechanical Behavior of High-Strength Bolted Joints Fabricated from Fire-Resistant Steel at Elevated Temperatures |
| title_short | Mechanical Behavior of High-Strength Bolted Joints Fabricated from Fire-Resistant Steel at Elevated Temperatures |
| title_sort | mechanical behavior of high strength bolted joints fabricated from fire resistant steel at elevated temperatures |
| url | http://dx.doi.org/10.1155/2022/8265019 |
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