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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...

Lifeline Systems Reliability, Serviceability and Reconstruction
In this paper we present a brief outline of methods and results for characterizing the reliability and serviceability of oil pipeline systems. Further, we present an outline of methods...

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...

The Application of Reliability Based Design for Earthquake Resistant Communications Structures
Current earthquake design criteria consists of applying equivalent lateral static forces embodied in design codes. The structures designed in conformance with such provisions and principles...

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 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...

Fuzzy Reliability Analysis for Structural Systems with Continuous States of Failure
When there exist continuous transition states from the completely safe states to the completely failed states for structural components, the whole structure would behaves in the same way....

A Topology Variational Method for Reliability Analysis of Structural Systems
A force method of structural analysis, named topology variational method, is used to compute the reliability of plastic framework. The system failure is defined in terms of a global response...

Failure Prediction for Non-Linear Structural Systems
A method is described that makes failure predictions for structures which are complex, nonlinear and expensive to evaluate on a computer. The method makes use of a non-linear response...

Reliability of Elasto-Plastic Structural Systems
This paper proposes a method for generating safety margins and failure mode equations for elasto-plastic structures where interaction of load effects is taken into account. Structural...

Adaptive Importance Sampling
An adaptive importance sampling scheme is presented which is based on the idea that as one samples, the knowledge of the failure domain increases. If one keeps modifying the importance...

Redundancy of Multistate Structural Systems
In the theory of structural reliability it is often assumed that the system and its members can have two performance or damage levels ie. they can either be functioning or failed. It is...

Examples of System Optimization and Reliability in Bridge Design
The objective of this paper is to present examples of system optimization and reliability in bridge inelastic design. The optimum solution is defined as the bridge of least weight, subject...

System Reliability of Semi-Submersible Platforms
This paper deals with the system reliability of semisubmersible platforms which are modelled as spatial frames and subjected to quasi-static extreme loads based on elasto-plastic strength...

A Structural System Reliability Analysis of Jacket Using an Improved Truss Model
An improved truss model for structural system reliability analysis of jacket structures is presented. The efficiency of the model makes it possible to carry out a large amount of ultimate...

Efficient Structural System Reliability Assessment by Monte-Carlo Methods
Monte Carlo methods can be used to good advantage since the required probability of failure is formulated as a multi-dimensional integral of the probability density function of the basic...

Risk Assessment of Utility Network Systems Using Expert Opinions
This paper describes the application of an expert opinion and survey approach to the problem identification and risk assessment of engineering systems. The method of expert opinion for...

Reliability of Redundant Structures Under Time Varying Loads
Time-variant system reliability methods under Poisson pulse load processes are presented. Direct simulations based on incremental truss analyses are also performed. Small displacement...

 

 

 

 

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