Seismic performance of earth-core and concrete-faced rock-fill dams by large-scale shaking table tests

2014 ◽  
Vol 56 ◽  
pp. 1-12 ◽  
Author(s):  
Linjuan Yuan ◽  
Xiaosheng Liu ◽  
Xiaogang Wang ◽  
Yusheng Yang ◽  
Zhengquan Yang
Keyword(s):  
Seismic Performance ◽  
Large Scale ◽  
Shaking Table ◽  
Shaking Table Tests ◽  
Rock Fill ◽  
Earth Core

Seismic performance of helical piles in dry sand from large-scale shaking table tests

Géotechnique ◽  
2019 ◽  
Vol 69 (12) ◽  
pp. 1071-1085 ◽  
Author(s):  
Moustafa Khaled Elsawy ◽  
M. Hesham El Naggar ◽  
Amy Cerato ◽  
Ahmed Elgamal
Keyword(s):  
Seismic Performance ◽  
Large Scale ◽  
Shaking Table ◽  
Shaking Table Tests ◽  
Helical Piles ◽  
Dry Sand

Characteristics of Earthquake Damage for High Core and Concrete-Faced Rock-Fill Dams by Shaking Table Tests

2013 ◽  
Vol 680 ◽  
pp. 194-199
Author(s):  
Lin Juan Yuan ◽  
Xiao Sheng Liu ◽  
Xiao Gang Wang ◽  
Chen Dai
Keyword(s):  
Large Scale ◽  
Residual Deformation ◽  
Horizontal Displacement ◽  
Earthquake Damage ◽  
Shaking Table ◽  
Shaking Table Tests ◽  
Earthquake Simulation ◽  
Rock Fill ◽  
Downstream Slope ◽  
Before And After

The pattern and characteristics of seismic damage for Shuangjiangkou ECRD and Houziyan CFRD models were studied through large-scale earthquake simulation shaking table tests in this work. The test results showed that the main earthquake damage pattern of rock-fill dam is permanent residual deformation and shallow slide on the downstream slope. Seismic residual deformation of rock-fill dam, which is filled and compacted well, is very small. Regardless of ECRD or CFRD, the horizontal displacement and settlement on downstream slope are significantly larger than upstream slope under empty reservoir. The analysis of residual deformation and vibration frequency before and after failure indicated that aseismic performance of CFRD is superior to ECRD. Because of the remarkable whipping effect in the high rock-fill dam, the key parts of aseismic design is downstream slope near the dam top, where appropriate aseismic measures should be taken.

scholarly journals Experimental estimation of energy dissipated by multistorey post-tensioned timber framed buildings with anti-seismic dissipative devices

2021 ◽  
Vol 1 (2) ◽  
Keyword(s):  
Seismic Performance ◽  
Environmental Sustainability ◽  
Shaking Table ◽  
Shaking Table Tests ◽  
Braced Frame ◽  
Timber Frame ◽  
Experimental Estimation ◽  
Energy Dissipated ◽  
The University ◽  
Post Tensioned

The need to satisfy high seismic performance of structures and to comply with the latest worldwide policies of environmental sustainability is leading engineers and researchers to higher interest in timber buildings. A post-tensioned timber frame specimen was tested at the structural laboratory of the University of Basilicata in Italy, in three different configurations: i) without dissipation (post-tensioning only-F configuration); ii) with dissipative angles (DF- dissipative rocking configuration) and iii) with dissipative bracing systems (BF - braced frame configuration). The shaking table tests were performed considering a set of spectra-compatible seismic inputs at different seismic intensities. This paper describes the experimental estimation of energy dissipated by multistorey post-tensioned timber prototype frame with different anti-seismic hysteretic dissipative devices used in the DF and BF testing configurations. The main experimental seismic key parameters have also been investigated in all testing configurations.

Landslide dam deformation analysis under aftershocks using large-scale shaking table tests measured by videogrammetric technique

2015 ◽  
Vol 186 ◽  
pp. 68-78 ◽  
Author(s):  
Zhen-Ming Shi ◽  
You-Quan Wang ◽  
Ming Peng ◽  
Sheng-Gong Guan ◽  
Jian-Feng Chen
Keyword(s):  
Large Scale ◽  
Landslide Dam ◽  
Shaking Table ◽  
Deformation Analysis ◽  
Shaking Table Tests ◽  
Dam Deformation

scholarly journals Seismic Protection of Cabinet Stored Cultural Relics with Silicone Dampers

2018 ◽  
Vol 2018 ◽  
pp. 1-15
Author(s):  
Xiaoqing Ning ◽  
Junwu Dai ◽  
Wen Bai ◽  
Yongqiang Yang ◽  
Lulu Zhang
Keyword(s):  
Numerical Simulation ◽  
Seismic Performance ◽  
Shaking Table ◽  
Seismic Protection ◽  
Shaking Table Tests ◽  
Seismic Methods ◽  
Cultural Relics

Cultural relics are precious properties of all humankind, the damage of which is nonresilient. In previous earthquakes, stored cultural relics have shown poor seismic performance, so effective seismic methods are urgently needed. However, due to various restrictions, traditional damping methods are not suitable for the cultural relics stored in the Palace Museum. An efficient damping method, composed of silicone damper and connecting elements, is proposed to protect these stored cultural relics. This novel damping device is very convenient to install and no change or move for the original structures is needed. It is suitable for various kinds of new and existing relic cabinets. In order to validate the effectiveness of this novel damping method, both numerical simulation and shaking table tests are carried out. Results show that this method can effectively enhance the seismic performance of relic cabinet itself and the internal cultural relics. Relic cabinets with damping devices deform significantly less than noncontrol cabinets while the inside relics also have less sliding or overturning. Overall, a damping method, designed for seismic protection of cabinet stored cultural relics, is proposed and its effectiveness has been successfully demonstrated.

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