A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Damping, wave attenuation and damage of local-resonance-based metaconcrete slabs: Experimental investigation
Abstract Metaconcrete has the potential ability of wave attenuation and vibration reduction, but there is still a lack of engineering component preparation and dynamic performance testing. In this research, metaconcrete slabs were designed and prepared, and modal tests and explosion tests were carried out. The high modal damping performance and vibration reduction characteristics of metaconcrete slabs were verified through modal tests. The wave attenuation performance, dynamic damping effect, anti-cracking and anti-spalling performance of metaconcrete slabs were verified through explosion tests. It is found that after adding resonators, the damping coefficient of the concrete slab significantly increases, and the crack width and spalling range decrease under blast load. These results show that metaconcrete slabs exhibit good dynamic performance and have the potential to be used in protective engineering.
Highlights High damping performance of metaconcrete slabs were verified by modal tests. Local resonators greatly improve the damping property of metaconcrete slabs. Wave attenuation and anti-spalling performances were verified by explosion tests. Local resonators reduce concrete spalling of metaconcrete slabs.
Damping, wave attenuation and damage of local-resonance-based metaconcrete slabs: Experimental investigation
Abstract Metaconcrete has the potential ability of wave attenuation and vibration reduction, but there is still a lack of engineering component preparation and dynamic performance testing. In this research, metaconcrete slabs were designed and prepared, and modal tests and explosion tests were carried out. The high modal damping performance and vibration reduction characteristics of metaconcrete slabs were verified through modal tests. The wave attenuation performance, dynamic damping effect, anti-cracking and anti-spalling performance of metaconcrete slabs were verified through explosion tests. It is found that after adding resonators, the damping coefficient of the concrete slab significantly increases, and the crack width and spalling range decrease under blast load. These results show that metaconcrete slabs exhibit good dynamic performance and have the potential to be used in protective engineering.
Highlights High damping performance of metaconcrete slabs were verified by modal tests. Local resonators greatly improve the damping property of metaconcrete slabs. Wave attenuation and anti-spalling performances were verified by explosion tests. Local resonators reduce concrete spalling of metaconcrete slabs.
Damping, wave attenuation and damage of local-resonance-based metaconcrete slabs: Experimental investigation
Liu, Yang (author) / He, Huguang (author) / Fan, Hualin (author)
2023-12-04
Article (Journal)
Electronic Resource
English
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