Additional viscous dampers for double-column rocking bridge system: Seismic response and overturning analysis

2021 ◽  
Vol 141 ◽  
pp. 106504
Author(s):  
Yu-Long Zhou ◽  
Qiang Han ◽  
Xiu-Li Du ◽  
Jin-Quan Zhang ◽  
Shou-Shan Cheng ◽  
...  

Structures are mainly subjected to various types of loading conditions such as dead loads, live loads and dynamic loads such as earthquake and wind loads etc. The earthquake creates vibration at the base of the structure. In modern seismic design, the damping devices are used to reduce the seismic energy and enable the control of the structural response of the structure. In the present study, the seismic behavior of a structure connected with and without Fluid Viscous Dampers (FVD) has been describes. The software ETABS 2016 is used to perform the modeling and analysis of G +10 storey building by considering seismic zone IV. For analysis IS codes have been referred. The response of the RCC building is evaluated using Push-over and Time history analyses. Fluid Viscous Dampers are suggested to the structure, to control the seismic response and increase the stiffness of the structure.


2011 ◽  
Vol 295-297 ◽  
pp. 2304-2308
Author(s):  
Zi Qi Li ◽  
Yan Yan Fan

Bridge is an important part of transport system, especially for the long-span bridges of important route. And it belongs to the lifeline project. It is an important measure for reducing the secondary disaster to ensure bridge’s normality in traffic after the earthquake. Currently, the isolation seismic design of long-span bridges with the special structure is used to reduce damage of bridges by the reason of the earthquake. Based on damping principle of the viscous dampers, the calculation and analysis of what the effect of shock absorption done by damper in decorate position of long-span cable-stayed bridge to structure of bridges are formulated in this paper.


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