scholarly journals THE ASSESSMENT OF STRONG GROUND MOTION: WHAT LIES AHEAD?

1997 ◽  
Author(s):  
Francisco José Sánchez Sesma ◽  
R SÍSMICA Benites ◽  
Jacobo Bielak
Keyword(s):  
Ground Motion ◽  
Earthquake Engineering ◽  
Strong Ground Motion ◽  
Engineering Research ◽  
Large Size ◽  
Recent Advances ◽  
The Future ◽  
Main Factors ◽  
Strong Ground

This papaer follows on the interest often manifested by Prof. Emilio Rosenblueth regarding the future of strong ground motion and earthquake engineering research. The authors state their views under the light of recent advances on observational and computational capabilities, and the various theoretical interpretations of the main factors that are relevant to quantify strong ground motion, namely source, path and site. The aparent lack of improvements in buildings codes to cope with moderate-to-large size earthquakes is discussed and the achievements of research on this issue are pointed out.

Strong Motion Attenuation Relations: A Ten-Year Perspective

1985 ◽  
Vol 1 (4) ◽  
pp. 759-804 ◽  
Author(s):  
Kenneth W. Campbell
Keyword(s):  
Ground Motion ◽  
Earthquake Engineering ◽  
Strong Ground Motion ◽  
Strong Motion ◽  
The United States ◽  
Attenuation Relations ◽  
Empirical Prediction ◽  
Motion Data ◽  
Motion Characteristics ◽  
Strong Ground

Research on strong ground-motion characteristics conducted in the United States within the last 10 years (1974-1984) forms the basis for a detailed discussion of important factors to be considered when selecting or developing strong-motion attenuation relations for use in earthquake engineering and seismic hazard studies. While emphasis is placed on the empirical prediction of ground-motion amplitudes, a brief discussion of procedures is presented that can be used when insufficient strong-motion data are available to perform an adequate statistical analysis. The discussion is followed by a tabulated summary of selected strong-motion attenuation relations proposed and developed in the last 10 years (1974-1984) to acquaint the reader with the types of relationships currently available.

A Comparison Between Modal Push-Over and Nonlinear Dynamic Response of Jacket Type Offshore Platforms Subjected to Strong Ground Motions

2008 ◽  
Author(s):  
M. A. Roshandel Tavana ◽  
B. Asgarian
Keyword(s):  
Dynamic Analysis ◽  
Ground Motion ◽  
Earthquake Engineering ◽  
Nonlinear Dynamic ◽  
Strong Ground Motion ◽  
Ground Motions ◽  
Nonlinear Dynamic Analysis ◽  
Offshore Platforms ◽  
Modes Of Vibration ◽  
Strong Ground

Nonlinear dynamic analysis for offshore structures has been a major challenge in marine structures and earthquake engineering. Nonlinear Dynamic Analysis of the structures subjected to strong ground motions is the most reliable prediction method. This method is very complex and expensive. An alternative procedure that has found to be much applicable in recent years is the nonlinear static analysis called push-over analysis method. Many attempts have been made to improve the predictive capabilities of the push-over analysis, particularly by employing adaptive load patterns and accounting for higher modes of vibration effects through modal push-over. In this paper, modal push-over analysis (MPA) of jacket type offshore platforms considering soil-pile-structure interaction subjected to strong ground motion has been studied and the results have been compared with “exact” nonlinear response history analysis (NLRHA). A jacket type offshore platform includes of piles, jacket and deck with different behaviors during strong ground motion. In this paper, three-dimensional model of jacket and pile has been considered using a combination of finite element method (FEM) and beam on nonlinear winkler foundation (BNWF) approach in an integrated model. Both jacket and pile elements have been modeled using fiber sections. The model has been developed using Open System for Earthquake Engineering Simulation (OpenSEES) software. In this paper, nonlinear seismic analysis of a new designed jacket type offshore platform located in Persian Gulf subjected to different levels of earthquake has been performed and the results have been compared with MPA ones. It can be concluded that the error percentage in MPA procedure is negligible when more modes of vibration are participated in the evaluation of the structure behavior.

Analysis of Strong Ground Motion Caused by Blasting Demolition of a 22-Story RC Building

2012 ◽  
Vol 226-228 ◽  
pp. 1010-1014 ◽  
Author(s):  
Yu Shi Wang ◽  
Xiao Jun Li
Keyword(s):  
Ground Motion ◽  
Earthquake Engineering ◽  
Strong Ground Motion ◽  
Ground Surface ◽  
Peak Ground Velocity ◽  
Good Effect ◽  
Metropolitan Regions ◽  
Building Collapse ◽  
Rc Building ◽  
Strong Ground

The influence of vibration on surrounding structures is one of the most important factors considered during blasting demolition of high-rise buildings in metropolitan regions. In the controlled blasting demolition of a 22-story RC building in Kunming, several accelerograms on ground surface were observed. Based on analyses of vertical peak ground velocity which is normally used in blasting vibration evaluation, and horizontal spectral acceleration which is frequently used in earthquake engineering, the ground motion caused by building collapse was evaluated. The results indicated that the adoptive vibration decreasing measures had a good effect, and the slight damages of two nearby buildings could not be due to abnormal strong ground motion caused by collapse.

scholarly journals Experimental investigation of strong ground motion due to thrust fault earthquakes

2014 ◽  
Vol 119 (2) ◽  
pp. 1316-1336 ◽  
Author(s):  
Vahe Gabuchian ◽  
Ares J. Rosakis ◽  
Nadia Lapusta ◽  
David D. Oglesby
Keyword(s):  
Experimental Investigation ◽  
Ground Motion ◽  
Strong Ground Motion ◽  
Thrust Fault ◽  
Strong Ground
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