Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/81216
Title: | Full-scale impact test and numerical simulation of a new-type resilient rock-shed flexible buffer structure | Authors: | Yu, ZX Zhao, L Guo, LP Liu, YP Yang, C Zhao, SC |
Issue Date: | 2019 | Source: | Shock and vibration, 2019, v. 2019, 7934696 | Abstract: | Rock sheds have been widely used to protect against rockfall. Traditionally, a cushion layer is placed on the top of a rock shed to reduce the impact force and dissipate energy. However, heavy cushion layers lead to high dead loads and increased construction costs. This paper discusses the concept of an impact-resilient flexible buffer structure. On the basis of that concept, it also proposes a buffer structure mainly composed of springs, ring nets, spring rods, and support ropes, which can be used to replace the traditional cushion layer on a shed for rockfall protection. Full-scale impact tests were conducted to study the impact-resilient characteristic of the structure combined with numerical simulation. The dynamic responses of the buffer structure, including force, deformation, and energy dissipation, were analysed in depth. Finally, parametric numerical simulations of 33 models were conducted; the spring stiffness of these models ranged from 300 kN/m to 1500 kN/m; the impact energy ranged from 100 kJ to 2000 kJ. Moreover, simple approaches for estimating the impact force and braking distance of the buffer structure were proposed and verified using measured data obtained from the impact test. | Publisher: | Hindawi Publishing Corporation | Journal: | Shock and vibration | ISSN: | 1070-9622 | EISSN: | 1875-9203 | DOI: | 10.1155/2019/7934696 | Rights: | Copyright © 2019 Z. X. Yu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The following publication Yu, Z. X., Zhao, L., Guo, L. P., Liu, Y. P., Yang, C., & Zhao, S. C. (2019). Full-Scale Impact Test and Numerical Simulation of a New-Type Resilient Rock-Shed Flexible Buffer Structure. Shock and Vibration, 2019 is available at https://doi.org/10.1155/2019/7934696 |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Yu_Full-scale_impact_test.pdf | 7.81 MB | Adobe PDF | View/Open |
Page views
111
Last Week
1
1
Last month
Citations as of Mar 24, 2024
Downloads
102
Citations as of Mar 24, 2024
SCOPUSTM
Citations
12
Citations as of Mar 28, 2024
WEB OF SCIENCETM
Citations
9
Citations as of Mar 28, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.