Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Aseismic performances of constrained damping lining structures made of rubber-sand-concrete
Flexible damping technology considering aseismic materials and aseismic structures seems be a good solution for engineering structures. In this study, a constrained damping structure for underground tunnel lining, using a rubber-sand-concrete (RSC) as the aseismic material, is proposed. The aseismic performances of constrained damping structure were investigated by a series of hammer impact tests. The damping layer thickness and shape effects on the aseismic performance such as effective duration and acceleration amplitude of time-domain analysis, composite loss factor and damping ratio of the transfer function analysis, and total vibration level of octave spectrum analysis were discussed. The hammer impact tests revealed that the relationship between the aseismic performance and damping layer thickness was not linear, and that the hollow damping layer had a better aseismic performance than the flat damping layer one. The aseismic performances of constrained damping structure under different seismicity magnitudes and geological conditions were investigated. The effects of the peak ground acceleration (PGA) and tunnel overburden depth on the aseismic performances such as the maximum principal stress and equivalent plastic strain (PEEQ) were discussed. The numerical results show the constrained damping structure proposed in this paper has a good aseismic performance, with PGA in the range (0.2–1.2)g and tunnel overburden depth in the range of 0–300 m.
Aseismic performances of constrained damping lining structures made of rubber-sand-concrete
Flexible damping technology considering aseismic materials and aseismic structures seems be a good solution for engineering structures. In this study, a constrained damping structure for underground tunnel lining, using a rubber-sand-concrete (RSC) as the aseismic material, is proposed. The aseismic performances of constrained damping structure were investigated by a series of hammer impact tests. The damping layer thickness and shape effects on the aseismic performance such as effective duration and acceleration amplitude of time-domain analysis, composite loss factor and damping ratio of the transfer function analysis, and total vibration level of octave spectrum analysis were discussed. The hammer impact tests revealed that the relationship between the aseismic performance and damping layer thickness was not linear, and that the hollow damping layer had a better aseismic performance than the flat damping layer one. The aseismic performances of constrained damping structure under different seismicity magnitudes and geological conditions were investigated. The effects of the peak ground acceleration (PGA) and tunnel overburden depth on the aseismic performances such as the maximum principal stress and equivalent plastic strain (PEEQ) were discussed. The numerical results show the constrained damping structure proposed in this paper has a good aseismic performance, with PGA in the range (0.2–1.2)g and tunnel overburden depth in the range of 0–300 m.
Aseismic performances of constrained damping lining structures made of rubber-sand-concrete
Xiancheng Mei (Autor:in) / Qian Sheng (Autor:in) / Jian Chen (Autor:in) / Zhen Cui (Autor:in) / Jianhe Li (Autor:in) / Chuanqi Li (Autor:in) / Daniel Dias (Autor:in)
2024
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Aseismic performances of constrained damping lining structures made of rubber-sand-concrete
| Elsevier | 2024
Composite Lining Aseismic Design for Fault-Crossing Tunnel Structures
| Trans Tech Publications | 2014
Aseismic Prestressed Concrete Structures with Confined Concrete
| Springer Verlag | 1991
CONCRETE REINFORED STRUCTURE AND ASEISMIC DAMPING SYSTEM WITH THE SAME
Europäisches Patentamt | 2018
CONCRETE REINFORED STRUCTURE AND ASEISMIC DAMPING SYSTEM WITH THE SAME
| Europäisches Patentamt | 2017