Showing papers in "Structural Safety in 1998"

TL;DR: In this article, a structural deterioration reliability model is developed to calculate probabilities of structural failure (flexure) for a typical reinforced concrete continuous slab bridge, assuming that corrosion will lead to a reduction in the cross-sectional area of the reinforcing steel.

TL;DR: In this article, a method is developed to successively find the multiple design points of a component reliability problem, when they exist on the limit-state surface of the SORM or Formula-SORM approximations at each design point.

TL;DR: In this article, a product of one-dimensional normal integrals is used to approximate a multinormal integral by a product product of 1D integrals, which are easy to evaluate.

TL;DR: In this paper, a general method for inverse reliability problems with multiple design variables and constraints is presented to demonstrate the efficiency and applicability of the method, including some from earthquake and offshore engineering.

TL;DR: In this paper, the impact of NDE on condition assessment and reliability of structures, in which fatigue crack growth is occurring as a result of cyclic random service loads, is examined.

TL;DR: In this paper, a hybrid technique for efficient system reliability estimation of large ductile framed structures is presented, which starts with a simple enumeration scheme, but quickly changes to an adaptive importance sampling scheme to make the process more efficient.

TL;DR: In this article, a statistical model by which the chloride content in a reinforced concrete structure can be predicted, is developed, and the model parameters are estimated on the basis of measurements.

TL;DR: In this article, a time variant formulation is presented in which the effect of these degradation phenomena on the hull section modulus is quantified, and different repair policies can be used as a tool to plan the maintenance actions based on reliability results.

TL;DR: This work uses standard extreme value models to describe extreme tail behaviour and uses maximum likelihood as the method of inference to develop a spatial analysis which exploits similarities in the behaviour of the data from one site to another in order to improve the precision of estimation.

TL;DR: A finite sample mean square error (MSE) is proposed to be used to select thresholds and to estimate tail characteristics, and confidence limits are obtained using the sampling distribution of estimators at the optimal threshold.

TL;DR: In this paper, the elastic modulus of the structure is considered to be a two-dimensional, homogeneous stochastic field, overcoming earlier computational problems associated with the large number of terms in the expression for the variability response function.

TL;DR: In this article, the authors generalize previous stochastic fatigue crack growth models by incorporating a time-dependent noise term described by arbitrary marginal distributions and autocorrelations to model the uncertainty in the crack growth under constant amplitude loading.

TL;DR: In this article, an interval probability theory for system reliability of corroded steel beams is proposed to compute the component reliability of corrosion-damaged steel members, which is illustrated using the data obtained from actual samples of corroding beams.

TL;DR: In this article, the results of an experimental program to verify a recently proposed stochastic damage accumulation model for symmetric composite laminates subjected to fatigue loading are presented and used to support the development of a life prediction model.

TL;DR: In this paper, the probability density function (p.d.f) of a random variable is approximated by a linear combination of B-splines and the best model is determined by entropy analysis.

TL;DR: In this paper, the probability distribution function (PDF) of a random variable Z is approximated with c·eQ(z), where Q(z) is a polynomial function and c is normalizing constant.

TL;DR: In this article, the authors focused on the damage potential of earthquake ground motions based on the inelastic dynamic response of equivalent single degree of freedom structures and selected their yield resistances in accordance with seismic design codes.

TL;DR: It is concluded that the most suitable framework for integrating SRA methods in QRA is to adopt the “fully Bayesian approach” with focus on observable quantities and use of subjective probabilities.

TL;DR: In this paper, a numerical simulation-based approach is presented to investigate the stability of torsional motion of suspension bridges under stochastic wind turbulence in the form of a periodic excitation with random phase modulation.

TL;DR: It is shown that conventional economic integration techniques often lead to numerical collapse of the solution, especially when dealing with higly nonlinear oscillators, and a strategy that overcomes this difficulty is proposed.

TL;DR: In this paper, the authors study the issue of whether the wind load factors specified in the ASCE 7-95 Standard for hurricane-prone regions and extratropical storm regions are mutually consistent with respect to risk.

TL;DR: In this paper, the authors present a few comments on the analytical model for an elastic foundation and the autocorrelation function for stochastic ground media which are applied in the paper.