scholarly journals Seismic hazard on West Bandung district using non-linear earthquake response analysis

2021 ◽  
Vol 331 ◽  
pp. 07003
Author(s):  
Anggun Mayang Sari ◽  
Afnindar Fakhrurrozi ◽  
Arifan Jaya Syahbana ◽  
Dwi Sarah ◽  
Bambang Setiadi ◽  
...  
Keyword(s):  
Scientific Information ◽  
Earthquake Ground Motion ◽  
Response Analysis ◽  
Building Structures ◽  
Tourist Attractions ◽  
Soil Response ◽  
Non Linear ◽  
The Government ◽  
Retail Company ◽  
Earthquake Response Analysis

West Bandung District is one of the government areas that grow rapidly in West Java. Here several infrastructures such as Highspeed Rail Development, Modern Residences, Tourist Attractions Area, and International Retail Company supply major contributions to economic development. Rapid construction in Bandung Basin caused the government to pay attention to risk factors, especially building structures. One of the natural hazards that must be considered is the presence of an active Lembang fault. Therefore, there is a need for a study that takes into account how the earthquake waves damaged the buildings. In this study, an analysis of the soil dynamics due to earthquake ground motion from bedrock was carried out. The analysis is carried out using the wave propagation method, which is a non-linear analysis of the soil response. The research was conducted at 12 points locations in West Bandung District. As the result, the location with the highest PGA surface value is in the Mekar Jaya area, while the lowest risk is found in the Cililin area. Furthermore, this study provides scientific information on seismic hazards to support government disaster risk reduction programs.

scholarly journals NON-LINEAR EARTHQUAKE RESPONSE ANALYSIS OF STRUCTURES BY A COMPUTER-ACTUATOR ON-LINE SYSTEM : Part 1 Detail of the System

1975 ◽  
Vol 229 (0) ◽  
pp. 77-83,190 ◽  
Author(s):  
KOICHI TAKANASHI ◽  
KUNIAKI UDAGAWA ◽  
MATSUTARO SEKI ◽  
TSUNEO OKADA ◽  
HISASHI TANAKA
Keyword(s):  
Earthquake Response ◽  
Response Analysis ◽  
Line System ◽  
Non Linear ◽  
System Part ◽  
On Line ◽  
Earthquake Response Analysis

scholarly journals Harmonic-Modal Hybrid Reduced Order Model for the Efficient Integration of Non-Linear Soil Dynamics

2020 ◽  
Vol 10 (19) ◽  
pp. 6778 ◽  
Author(s):  
Claudia Germoso ◽  
Jean Louis Duval ◽  
Francisco Chinesta
Keyword(s):  
Site Response ◽  
Laboratory Data ◽  
Nonlinear Behavior ◽  
Forced Response ◽  
Equivalent Linearization ◽  
Response Analysis ◽  
Damping Factor ◽  
Alternative Analysis ◽  
Soil Response ◽  
Non Linear

Nonlinear behavior of soils during a seismic event has a predominant role in current site response analysis. Soil response analysis, and more concretely laboratory data, indicate that the stress-strain relationship of soils is nonlinear and exhibits hysteresis. An equivalent linearization method, in which non-linear characteristics of shear modulus and damping factor of soils are modeled as equivalent linear relations of the shear strain is usually applied, but this assumption, however, may lead to a conservative approach of the seismic design. In this paper, we propose an alternative analysis formulation, able to address forced response simulation of soils exhibiting their characteristic nonlinear behavior. The proposed approach combines ingredients of modal and harmonic analyses enabling efficient time-integration of nonlinear soil behaviors based on the offline construction of a dynamic response parametric solution by using Proper Generalized Decomposition (PGD)-based model order reduction technique.

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