Dynamic response and optimization of an inclined steel rock shed by the graded energy dissipating method

Blocking rockfalls directly by reinforced concrete (RC) flat sheds with thick sand cushions is an outdated method. Such conventional sheds typically accumulate rock heavily, and become progressively damaged and are difficult to repair, and are very costly. To address these problems, we propose a new...

Full description

Saved in:
Bibliographic Details
Published in:Journal of mountain science 2019, Vol.16 (1), p.138-152
Main Authors: Wu, Yong, He, Si-ming, Li, Xin-po, Wang, Dong-po
Format: Article
Language:English
Subjects:
Computer simulation
Cushions
Damage accumulation
Deformation
Design engineering
Design optimization
Dynamic response
Earth and Environmental Science
Earth Sciences
Ecology
Energy dissipation
Energy exchange
Environment
Geography
Impact analysis
Mathematical models
Methods
Model testing
Modular engineering
Reinforced concrete
Reinforcing steels
Repair
Rocks
Security
Sheds
Steel
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Blocking rockfalls directly by reinforced concrete (RC) flat sheds with thick sand cushions is an outdated method. Such conventional sheds typically accumulate rock heavily, and become progressively damaged and are difficult to repair, and are very costly. To address these problems, we propose a new structure called a Graded Dissipating Inclined Steel Rock (GDISR) shed that utilizes the graded energy dissipation method. Here, we study the dynamic response of the GDISR shed with model test and numerical simulation, and give its optimization design combining with a practical engineering case. Our results show that the optimized modular E-block and corrugated steel tube can deform to sufficiently absorb the energy of different impact intensities. This efficiently and economically provides GDISR sheds with two security lines. Compared with conventional RC sheds, GDISR sheds with optimal incline have a more efficient anti-impact function, are faster and easier to repair, and are much simpler and cheaper to build.
ISSN:1672-6316
1993-0321
1008-2786
DOI:10.1007/s11629-018-5103-2