Seismic performance analysis of Wenchuan Hospital structure with viscous dampers

2010 ◽  
Vol 19 (4) ◽  
pp. 397-419 ◽  
Author(s):  
Xue-Wei Chen ◽  
Jia-Xuan Li ◽  
Jack Cheang
Keyword(s):  
Performance Analysis ◽  
Seismic Performance ◽  
Viscous Dampers

scholarly journals Seismic performance analysis of new frame columns in a story-adding frame structure

2021 ◽  
Vol 783 (1) ◽  
pp. 012040
Author(s):  
Zhuhai Shao ◽  
Xinsheng Xu ◽  
Ning Wang
Keyword(s):  
Performance Analysis ◽  
Seismic Performance ◽  
Frame Structure

Seismic performance analysis and design suggestion for frame buildings with cast-in-place staircases

2013 ◽  
Vol 12 (2) ◽  
pp. 209-219 ◽  
Author(s):  
Yuan Feng ◽  
Xiaobin Wu ◽  
Yaoqing Xiong ◽  
Congchun Li ◽  
Wen Yang
Keyword(s):  
Performance Analysis ◽  
Seismic Performance ◽  
Analysis And Design ◽  
Frame Buildings ◽  
Design Suggestion ◽  
Performance Analysis And Design

Effects of Brace Stiffness and Nonlinearity of Viscous Dampers on Seismic Performance of Structures

2021 ◽  
pp. 2150188
Author(s):  
Siyuan Li ◽  
Yung-Tsang Chen ◽  
Y. H. Chai ◽  
Bo Li
Keyword(s):  
Seismic Performance ◽  
Structural Performance ◽  
Design Parameters ◽  
Viscous Dampers ◽  
Story Structure ◽  
Design Efficiency ◽  
Time Stepping ◽  
Seismic Hazard Mitigation ◽  
Method Effects ◽  
Supplemental Dampers

In the applications of supplemental dampers for seismic hazard mitigation, the supporting braces for the dampers are considered an important component for ensuring an efficient energy dissipation in the structure. Despite their importance, studies on the effects of the brace stiffness and the velocity exponent in the case of nonlinear viscous dampers are rather limited. In this paper, a numerical time-stepping method is developed for computing the seismic response of the structure with supporting braces and nonlinear viscous dampers. Using the proposed method, effects of the parameters of the nonlinear damper-brace systems are investigated, using first a single-story structure, followed by multi-story buildings. Results indicated that the design parameters for the dampers and supporting braces may be combined in numerous ways to satisfy a given set of structural performance objectives, but the brace stiffness can be minimized to achieve design efficiency in the range of velocity exponent commonly used for seismic applications of nonlinear viscous dampers. Results also indicated that for a set brace stiffness, if the dampers are optimally designed, the velocity exponent has an insignificant effect on the structural seismic performance objectives considered in this paper.

Seismic Performance of the Buckling-Restrained Brace Central Buckle for Long-Span Suspension Bridges

2018 ◽  
Vol 12 (05) ◽  
pp. 1850015 ◽  
Author(s):  
Wei Guo ◽  
Jianzhong Li ◽  
Nailiang Xiang
Keyword(s):  
Seismic Performance ◽  
Design Procedure ◽  
Suspension Bridges ◽  
Preliminary Design ◽  
Viscous Dampers ◽  
Buckling Restrained Brace ◽  
Long Span ◽  
Parametric Analyses ◽  
Yield Force ◽  
Central Buckle

In this paper, a novel central buckle composed of buckling-restrained braces (BRBs) is developed for long-span suspension bridges, and its preliminary design procedure is presented. Seismic performance of suspension bridges equipped with BRB central buckles is investigated and compared with those with conventional central buckles (e.g. rigid or flexible central buckles). Furthermore, the effect of BRB yield force, as well as the effectiveness of BRB central buckles combined with viscous dampers, is evaluated using parametric analyses. The results indicate that the BRB central buckle is more effective than other central buckles in reducing both the longitudinal girder displacements and force demands on towers during an earthquake. Furthermore, the combination of BRB central buckles and viscous dampers is a superior option for mitigating the seismic response of long-span suspension bridges.

Seismic performance analysis of precast segmental bridge columns with self-centering energy dissipation device

2021 ◽  
Author(s):  
Hui Jiang ◽  
Chen Li ◽  
Xiaoyu Bai ◽  
Guangsong Song
Keyword(s):  
Energy Dissipation ◽  
Performance Analysis ◽  
Seismic Performance ◽  
Bridge Columns ◽  
Segmental Bridge

scholarly journals Seismic performance analysis of concrete-filled steel tubular single pylon cable-stayed bridge with swivel construction

2019 ◽  
Vol 218 ◽  
pp. 012087
Author(s):  
Junhua Xiao ◽  
Miao Liu ◽  
Tieyi Zhong ◽  
Guangzhi Fu
Keyword(s):  
Performance Analysis ◽  
Seismic Performance ◽  
Cable Stayed Bridge

Seismic Performance Analysis of Concrete Gravity Dams

2021 ◽  
Author(s):  
Gaohui Wang ◽  
Wenbo Lu ◽  
Sherong Zhang
Keyword(s):  
Performance Analysis ◽  
Seismic Performance ◽  
Gravity Dams ◽  
Concrete Gravity Dams
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