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Advances in Concrete Construction Volume 12, Number 5, November 2021 , pages 377-389 DOI: https://doi.org/10.12989/acc.2021.12.5.377 |
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Shaking table test and horizontal torsional vibration response analysis of column-supported vertical silo group silo structure |
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Xuesen Li, Yonggang Ding and Qikeng Xu
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| Abstract | ||
| Reinforced concrete vertical silos are universal structures that store large amounts of granular materials. Due to the asymmetric structure, heavy load, uneven storage material distribution, and the difference between the storage volume and the storage material bulk density, the corresponding earthquake is very complicated. Some scholars have proposed the calculation method of horizontal forces on reinforced concrete vertical silos under the action of earthquakes. Without considering the effect of torsional effect, this article aims to reveal the expansion factor of the silo group considering the torsional effect through experiments. Through two-way seismic simulation shaking table tests on reinforced concrete column-supported group silo structures, the basic dynamic characteristics of the structure under earthquake are obtained. Taking into account the torsional response, the structure has three types of storage: empty, half and full. A comprehensive analysis of the internal force conditions under the material conditions shows that: the different positions of the group bin model are different, the side bin displacement produces a displacement difference, and a torsional effect occurs; as the mass of the material increases, the structure | ||
| Key Words | ||
| flat torsional vibration; group silos; seismic response; shaking table test; storage materials | ||
| Address | ||
| Xuesen Li, Yonggang Ding and Qikeng Xu: School of Civil Engineering, Henan University of Technology, Zhengzhou 450001, China | ||
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