Dynamic response analysis of submerged floating tunnels by wave and seismic excitations

2017 ◽  
Vol 7 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Jooyoung Lee ◽  
Chungkuk Jin ◽  
Moohyun Kim
Keyword(s):  
Dynamic Response ◽  
Response Analysis ◽  
Seismic Excitations ◽  
Dynamic Response Analysis

scholarly journals A Simplified Model for Dynamic Response Analysis of Framed Self-Centering Wall Structures under Seismic Excitations

2019 ◽  
Vol 2019 ◽  
pp. 1-14
Author(s):  
Xiaobin Hu ◽  
Chen Lu ◽  
Xiaoqing Zhu
Keyword(s):  
Dynamic Response ◽  
Elastic Stiffness ◽  
Simplified Model ◽  
Design Parameters ◽  
Response Analysis ◽  
Seismic Responses ◽  
Analysis Model ◽  
Seismic Excitations ◽  
Element Analysis ◽  
Dynamic Response Analysis

This paper presents a simplified model for dynamic response analysis of the framed self-centering wall (FSCW) structure under seismic excitations. In the analysis model, the frame is equivalent as a single-degree-of-freedom system and collaborates with the self-centering (SC) wall to resist lateral loads. By way of pushover analysis of a typical FSCW structure, the proposed analysis model is validated by comparing the analysis results with those obtained from the finite element analysis method. Using the analysis model, motion equations of the FSCW structure under seismic excitations are established and solved through numerical simulations. Finally, a comprehensive parametric study is conducted to investigate the effects of a variety of design parameters on seismic responses of the FSCW structure. It shows that improving the yield force or elastic stiffness of the frame can help greatly lessen seismic responses of the FSCW structure in terms of the rotation angle of the SC wall.

scholarly journals Seismic performance of a high-rise residential building model in Purwokerto, Indonesia

2018 ◽  
Vol 192 ◽  
pp. 02002 ◽  
Author(s):  
Yanuar Haryanto ◽  
Buntara Sthenly Gan ◽  
Nanang Gunawan Wariyatno ◽  
Eva Wahyu Indriyati
Keyword(s):  
Dynamic Response ◽  
Static Analysis ◽  
Pushover Analysis ◽  
Residential Building ◽  
Response Analysis ◽  
Dynamic Response Analysis ◽  
Building Model ◽  
High Rise ◽  
Drift Ratio ◽  
Linear Static Analysis

We evaluated the performance of a high-rise residential building model in Purwokerto, Indonesia due to the seismic load. The evaluation was performed based on seismic loads given in the 2002 and 2012 Indonesian National Standard (SNI) using linear static analysis, dynamic response analysis and pushover analysis. Based on the linear static analysis, the drift ratio decreased by an average of 34.42 and 32.61% for the X and Y directions respectively. Meanwhile, based on the dynamic response analysis, the drift ratio also decreased by an average of 30.74 and 27.33% for the X and Y directions respectively. In addition, the pushover analysis indicates that the performance of this high-rise residential building model is still at Immediate Occupancy (IO) level. The post-earthquake damage state in which the building remains safe to occupy, essentially retaining the pre-earthquake design strength and stiffness of the structure. The risk of life-threatening injury as a result of structural damage is very low. Although some minor structural repairs may be appropriate, these would generally not be required prior to re-occupancy.

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