scholarly journals The local site response for upgrading the existing buildings against seismic hazard

2015 ◽  
Author(s):  
A. Ferraro ◽  
S. Grasso ◽  
M. R. Massimino ◽  
M. Maugeri ◽  
E. Motta
Keyword(s):  
Seismic Hazard ◽  
Site Response ◽  
Existing Buildings ◽  
Local Site ◽  
Local Site Response

LOCAL SITE RESPONSE ON SIMULATED STRONG EARTHQUAKE MOTION AT LAEM CHABANG PORT, THAILAND

2015 ◽  
Vol 2 (3) ◽  
Author(s):  
Pulpong Pongvithayapanu ◽  
Supot Teachavorasinskun
Keyword(s):  
Strong Earthquake ◽  
Site Response ◽  
Active Faults ◽  
Gulf Of Thailand ◽  
Liquefaction Potential ◽  
Strong Earthquakes ◽  
Local Site ◽  
Earthquake Motion ◽  
Local Site Response ◽  
Upper Gulf Of Thailand

Laem Chabang port, located in Chonburi province in the upper Gulf of Thailand, is similar to many of the ports around the world. Some areas of Leam Cha bang port were layered by backfill materials which are highly suspected to soil liquefaction phenomena from the moderate to strong earthquakes. After one of the world’s largest earthquakes of December 26th, 2004 (Magnitude 9.1) occurred in the region off the west coast of northern Sumatra, various existing active faults have been reported to have more potential to generate future earthquakes. Among those active faults, Ranong and Khlong Marui fault zone, distributed around the south and the upper Gulf of Thailand, have been evidenced to have more seismic activities than December 2004. The closet distance between Leam Chabang port and the extension of Ranong fault zone to the upper Gulf of Thailand is approximately 180-200 km. Though not too close, it is still probable to generate strong earthquakes. This study, for that reason, aims to investigate the local site responses of the filled area at Laem Chabang port due to afresh seismic Ranong active fault by employing the equivalent linear ground response analysis. The complete strong earthquake motion time history from the Ranong fault would be synthetically generated and inputted as a bedrock motion underneath the site of interest. The simplified analysis of liquefaction potential assessment based on the results from local site response would be additionally adopted to evaluate the liquefaction susceptibility around this site. The simulation results indicated that some backfill soil layers which have the very low SPT N-value were significantly suspected to liquefy under strong earthquake motions. Keywords: Local site response, synthetic accelerogram, liquefaction potential, backfill, Laem Chabang port

Integrated geophysical-geological model for seismic local site response: the Caldes alpine slope case (Southern Alps, NE Italy)

2016 ◽  
Vol 75 (2) ◽  
Author(s):  
Jacopo Boaga ◽  
Michela Carrer ◽  
Fabio Fedrizzi ◽  
Silvana Martin ◽  
Alfio Viganò
Keyword(s):  
Site Response ◽  
Southern Alps ◽  
Geological Model ◽  
Ne Italy ◽  
Local Site ◽  
Local Site Response

scholarly journals Simulation of local site response to earthquakes

1980 ◽  
Author(s):  
S.M. Day ◽  
H.E. Read ◽  
H.J. Swanger ◽  
K.J. Cheverton
Keyword(s):  
Site Response ◽  
Local Site ◽  
Local Site Response

scholarly journals A hybrid model for mapping simplified seismic response via a GIS-metamodel approach

2014 ◽  
Vol 14 (7) ◽  
pp. 1703-1718 ◽  
Author(s):  
G. Grelle ◽  
L. Bonito ◽  
P. Revellino ◽  
L. Guerriero ◽  
F. M. Guadagno
Keyword(s):  
Seismic Hazard ◽  
Seismic Response ◽  
Hybrid Model ◽  
Computational Models ◽  
Site Response ◽  
Seismic Hazard Assessment ◽  
Physical Parameters ◽  
Seismic Zone ◽  
Acceleration Response ◽  
Good Correspondence

Abstract. In earthquake-prone areas, site seismic response due to lithostratigraphic sequence plays a key role in seismic hazard assessment. A hybrid model, consisting of GIS and metamodel (model of model) procedures, was introduced aimed at estimating the 1-D spatial seismic site response in accordance with spatial variability of sediment parameters. Inputs and outputs are provided and processed by means of an appropriate GIS model, named GIS Cubic Model (GCM). This consists of a block-layered parametric structure aimed at resolving a predicted metamodel by means of pixel to pixel vertical computing. The metamodel, opportunely calibrated, is able to emulate the classic shape of the spectral acceleration response in relation to the main physical parameters that characterize the spectrum itself. Therefore, via the GCM structure and the metamodel, the hybrid model provides maps of normalized acceleration response spectra. The hybrid model was applied and tested on the built-up area of the San Giorgio del Sannio village, located in a high-risk seismic zone of southern Italy. Efficiency tests showed a good correspondence between the spectral values resulting from the proposed approach and the 1-D physical computational models. Supported by lithology and geophysical data and corresponding accurate interpretation regarding modelling, the hybrid model can be an efficient tool in assessing urban planning seismic hazard/risk.

Sign in / Sign up

Export Citation Format

Share Document