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Multi-Hazard Risk Assessment of an Offshore Structure
This paper develops and illustrates a methodology for multi-hazard modal risk assessment. The case study involves assessing risk to an offshore structure in a load environment consisting...

Iterative Subsystem Analysis for Seismic Monte Carlo Studies
Three iterative subsystem analysis techniques for Monte Carlo simulation of response time histories are examined. The three subsystems are designated primary, secondary, and interface,...

Reliability and Design Criteria for Secondary Systems
In seismic design and analysis of secondary systems housed in structures, the most widely used approximate method is the floor response spectra approach. In this paper, necessary modifications...

On Aseismic Hybrid Control System
One type of hybrid control system is proposed for protecting tall buildings subjected to strong earthquakes. The hybrid system consists of a base isolation system connected to either a...

Practical Aspects of Structural Control
Several problems in the practical implementation of structural control are discussed herein. These problems include the prediction of the actual behavior of existing structures, mathematical...

Response of Sliding Base-Isolated Structures
Experimental and anlaytical results on the behavior of sliding isolated structures are presented. A mathematical model of friction of Teflon bearings is developed, calibrated, and verified....

Serviceability of San Francisco Auxiliary Water Supply System
A method is developed for estimating the seismic serviceability of water supply systems. The method can account for uncertainties in earthquake, mechanical properties of soil and pipelines,...

Graphical Demonstration of Serviceability Analysis
A graphical interactive computer program (GISALLE) has been developed using state of the art computer graphics to estimate the seismic performance of water supply systems. GISALLE is developed...

Development of Fragility Curves for Liquefaction
The purpose of this study is to propose a methodology for evaluation of the degree of liquefaction potential and to demonstrate its applicability in constructing fragility curves for liquefaction...

Response Analysis of Crude Oil Transmission Systems
A preliminary analysis of the seismic response of continuous steel pipelines is presented. The Crude Oil Transmission System in the New Madrid Mo. area is choosen as an example. Assumptions...

Identification of a Site-Specific Ground Motion Model
The power spectral density and envelope function of earthquake ground accelerations at a site of interest are determined with the aid of system identification based on information predicted...

Analysis of Earthquake Response at a Site With Uncertain Properties
The problem of earthquake response of a soil deposit with uncertain properties is studied in the paper. Various analysis procedures for handling the dynamic response of an uncertain system...

Critical Seismic Excitation for Structures
Critical seismic excitations are defined as stationary random functions with a given variance, which maximize the response variance of a linear structural dynamic system. A method is presented...

Earthquake Ground Motions Consistent with Probabilistic Seismic Hazard Analysis
The present study deals with the new methodology for simulation of earthquake ground motion for the probabilistic risk assessment (PRA) of structures. Peak ground acceleration, acceleration...

A Seismic PRA Procedure in Japan and its Application to a Building Performance Safety Estimation: Part 2. Fragility Analysis
In this paper, a practical seismic fragility evaluation method for structure and equipment systems is proposed. Structural and equipment failures are considered here, reflecting detailed...

A Seismic PRA Procedure in Japan and its Application to a Building Performance Safety Estimation: Part 3. Estimation of Building and Equipment Performance Safety
This paper presents an application of a seismic PRA procedure to an apartment building, which also contains an electric substation for the surrounding area. In this procedure, as presented...

Seismic Vulnerability Data and Optimum Allocation of Resources for Risk Reduction
The problem of reducing the seismic risk of existing buildings is tackled, and the most convenient strategies to be followed in planning upgrading interventions are discussed. After summarizing...

Reliability-Based Design Requirements for Foundations of Buildings Subjected to Earthquake
Optimum seismic design coefficients and safety factors with respect to shear and overturning failure modes are obtained for a set of multi-story frame buildings idealized as single-mass...

Earthquake Energy Partitioning in Base Isolated and Dynamically Damped Structures
New earthquake energy spectra are proposed for practical design procedures using energy concepts. The spectra show integrated earthquake input energy of a unit mass with given natural...

Stochastic Seismic Response Sensitivity of Lifeline Systems
The seismic response sensitivity of lifeline systems is examining using a probabilistic analysis based on random vibration theory. This analysis includes: (1) modelling the earthquake...

 

 

 

 

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