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Reliability of Bridges in Turbulent Wind
The present study investigates the stability of bridge motion by means of almost sure or sample stability criteria. An asymptotically exact approximation for the top Lyapunov exponent...

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,...

Wind Loads on Large Broadcasting Antennas: Records and Elaborations
Alternative estimations of the 50-year gust winds from the data available in typical Italian sites of broadcasting antennas are summarized and compared with the design winds suggested...

Reliability-Based Design of Tunnel Support in Jointed Rock
The presence of joints in a rock mass may cause local instability of the tunnel support and its effect on safety should be included in design. Because of significant uncertainties in the...

Autocorrelation Functions for Offshore Geotechnical Data
Autocorrelation functions are described. Data from several North Sea sites are analyzed with respect to the vertical and horizontal autocorrelation of a number of soil properties. Based...

Earthquake Clustering in the Kanto District
Earthquakes in the Kanto district (Japan) between January 1983 and March 1987 are analysed for the identification of independent main shocks and for the hierarchical clustering of secondary...

Application of Physical Laws to Parameter Estimation for Probabilistic Models of Cumulative Damage
In this initial paper we will discuss the development of the application of physical laws to the modeling of cumulative damage and particular to crack growths. The basic assumptions due...

Damage Evolution in Reinforced Concrete Members Under Cyclic Loading
The paper presents a new damage indicator D, valid for reinforced concrete sections under cyclic loading. D_Q, based on sectionally absorbed energies,...

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...

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...

On the Failure Probabilities of R/C Chimneys
A procedure to estimate failure probabilities of structural systems such as reinforced concrete (R/C) chimneys under severe wind loading which allows for considering realistic correlation...

Reliability of Identical Brittle Parallel System
The failure path of a system can be investigated through the use of a failure graph, which is a directed graph of all possible sequences of element failures. This paper describes the development...

Durability and Damage Tolerance Evaluations of Jet Transport Structures
Many design considerations are involved in ensuring structural integrity of Boeing jet transports, which have common design features validated by extensive analyses, tests, and service...

Local Integration Method in Stochastic Finite Element Analysis
This paper, introducing local integration method, proposes a new stochastic finite element method for estimating the response variability of multi-dimensional stochastic systems. Young's...

Galerkin-Based Response Surface Approach for Reliability Analysis
A new method for structural reliability analysis is presented. The method relies on an efficient algorithm for approximating the response surface of engineering structures. Unlike methods...

Some Insight in Autoregressive (AR) Spectral Modeling
The difficulties associated with the determination of reliable autoregressive (AR) approximations of the Pierson-Moskowitz and Davenport spectra are examined from the standpoint of developing...

Stochastic Finite Element Analysis of Metal Plate Connected Wood Trusses
A stochastic finite element approach is developed for use in ananlyzing metal plate connected wood trusses. The procedure uses linear beam-column elements to model the wood members. The...

Response Analysis of an Elasto-Plastic System Under Nonstationary Random Input
This study presents that the variance of cumulative plastic deformation of a simple elasto-plastic structure under seismic excitation can be estimated in a relatively simple theoretical...

Expected Failure Time of Fiber Bundle Systems Subject to Gaussian Load Processes
Methods are developed for estimating the reliability and failure time of Daniels systems subject to Gaussian load processes. These systems consist of a set of parallel fibers and can carry...

A Comparison of Different Mathematical Models for the Spatial Correlation of Distributed Excitation Forces
This paper contains an investigation of the transverse vibrations of EULER-BERNOULLI beams under longitudinal tension and random space-time loading. Using GREEN's function...

 

 

 

 

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