Time Dependent Stochastic Characteristics of the Lateral Random Vibration of Tall Structures with Circular Cross-Section
From full scale measurement of the pressure field at three levels of a concrete chimney with 230 m height the lift coefficient is deduced and the lateral oscillation is investigated. The...
Reliability of Overhead Transmission Lines Subjected to Wind Action
The probability distribution of the strength of steel towers used in transmission lines, due to wind excitation, is evaluated on the basis of test results of 72 towers of various designs,...
Stochastic Behavior of Concrete Arch Dam-Reservoir Fluid-Foundation Systems in Nonstationary Random Vibration
The behavior of elastic arch dam reservoir fluid system subjected to ground acceleration excitations has been studied extensively by Chopra and his colleagues. In their studies, the excitations...
Seismic Ground Motions for Lifeline Analysis
The spatial variation of seismic ground motions necessary for lifeline analysis is determined from a stochastic source model combined with a substitute system representing the equivalent...
Variability of Parameters of Earthquake Ground Motion Recorded by Strong Motion Arrays
The spatial variation of scalar measures of earthquake ground motion, such as peak ground acceleration, strong motion duration, and root-mean-square amplitude, along with various spectral...
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,...
Serviceability of Water Transmission Systems
This present paper deals with the vulnerability and reliability of a functionally as well as physically hierarchical lifeline system. Most major lifeline systems have this feature. For...
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...
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...
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 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...
A Practical Model for Forecasting Water Supply Functions at Time of the Earthquake
This study aims to construct a practical forecasting model for the seismic damage restoration of city water supply functions by using experts empirical knowledge as well as the functional...
Reliability of Electric Power Transmission Systems in Seismically Active Metropolitan Tokyo: Part 1. Network Modeling
A method is proposed for modeling electric power transmission systems. The model can be used to evaluate the reliability of the network connectivity in a seismically active region. It...
Reliability of Electric Power Transmission Systems in Seismically Active Metropolitan Tokyo: Part 2. Seismic Hazard Analysis
For studying the seismic reliability of a power transmission system of Metropolitan Tokyo, the seismic hazard analysis of Kanto district was performed based on a three dimensionally distributed...
Reliability of Electric Power Transmission Systems in Seismically Active Metropolitan Tokyo: Part 3. Seismic Reliability Analysis
The seismic reliability of the connectivity of electric power transmission networks is evaluated by using the results of Parts 1 and 2. The fragility curves for the supporting structures...
Continuous Simulation of Gaussian Processes with Given Spectrum
A new algorithm, to be called MIMA (modulated interpolated moving average) allows stationary Gaussian processes with given spectral density to be simulated in continuous time, while providing...
Identification of Power Spectra?Linear and Nonlinear Approaches
Linear dynamical filter systems driven by white noise can be used for the generation of stationary and Gaussian processes. A linear approximation method proposed by W. Wedig is presented...
Development of Reliability-Based Integrated Design-Construction Quality Assurance System of Penstock
A more rational design-construction quality assurance system is proposed by applying the concepts of the reliability-based design methods. By applying this system, the design level of...
On Reliability of Mechanical Logics and Its Application
Recently, most of logical circuits are understood to consist of electrical components and wiring, however, we are still using various types of mechanical logics at the end of the safety-related...
Recent Seismic Risk Studies of Nuclear Power Plants: An Overview
Seismic probabilistic risk assessments (PRA) are conducted to estimate the frequencies of occurrence of severe core damage, serious radiological releases, and consequences in terms of...
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