On Response Spectrum Approach for Nonclassically Damped Structural System
A response spectrum approach to approximate the maximum response of nonclassically damped structural systems is presented. The maximum response is expressed in terms of the sine spectrum,...
Bridge Reliability Evaluation Using 3-D Analysis and Damage Scenarios
This paper reports analytical investigations into the system strength and reliability evaluation of existing bridges using 3-D inelastic analysis and damage scenarios. In this context,...
Bridge Reliability?Evaluation vs. Design
Probabilistic methods of structural safety are being widely accepted as a basis for rationally considering uncertainties and developing reliability based design specifications for various...
Dynamic Maps for Seismic Risk Reduction and Effects of Soil Conditions
In order to perform useful vulnerability and risk evaluations, it is essential to have at one's disposal an automatic procedure of elaboration which provides answers in real time as soon...
A Stochastic Seismological Model in Earthquake Engineering
Recent studies of source mechanisms and wave propagation models enable one to generate strong motions based on deterministic source and source-to-site characteristics. The normal mode...
Practical Implementation of Seismic Probabilistic Risk Assessment
Many techniques for seismic probabilistic risk assessment have been developed by university researchers over the last decade. This paper reports on a study being conducted to determine...
Effect of Spatial Variation of Ground Motions on Bridges
The effect of spatial variation of ground motions on the response of a two-span bridge is presented. Perfectly and partially correlated earthquake ground motions are used as input motions...
Recursive Modeling of Dynamic Response of MDOF Systems
The dynamic response of multi-degree-of-freedom (MDOF) systems to correlated multi-input random excitations utilizing recursive modeling is presented. The recursive model is formulated...
Stochastic System Identification in Structural Dynamics
Recently, new identification methods have been developed by using the concept of optimal-recursive filtering and stochastic approximation. These methods, known as stochastic identification,...
Applications of ARMA Models for Seismic Damage Prediction
As an alternative to current design practice which is based on peak measured ground motions and scaled records from different events, individual earthquake records are treated as samples...
Actual Versus Assumed Behaviour of Girder Bridges
It is generally believed that the discrepancies between calculated and actual responses of bridges can diminish, to the point of being nonexistent, with refinement in the method of analysis....
Statistical Analysis of Occupant Dynamic Loads
Human-induced load-time histories were modeled by several dependent descriptive parameters. These parameters were treated as functions of two independent variables in a multivariate regression...
Design Wind Loads for Broadcasting Antennas from Short Time Records
Very useful would be procedures for the determination of the design wind load on the basis of short time records, of duration comparable with the preliminary and/or design phases, so that...
Stochastic Properties of Wind Spectra
In the first part of this paper the correlation function of measured wind spectra is compared with theoretical correlation models assuming a stationary wind process. This comparison indicates...
Dynamic Response of Tall Buildings to Wind Loads
The purpose of this study is to perform a probabilistic analysis of tall buildings subjected to wind excitation. A time domain simulation is first applied to the nonlinear problem. After...
Endochronic Theory and Non-Llinear Stochastic Dynamics of 3-D Frames
Analytical continuous expressions of the material constitutive law are required by equivalent linearization techniques in nonlinear stochastic dynamics. Extensions to study 3D frames,...
Response of Two-Span Beam to Spatially Varying Earthquake Excitation
The effect of the spatial variation of strong ground motion should be considered in the analysis and design of large structures such as bridges, lifelines, dams, etc. The stochastic response...
A Tower-Like Structure with Distributed Stiffness, Mass and Plastic Zones Under Random Earthquake Loading
Random vibrations of an elastoplastic structure are treated by taking into account the finite spread of plastic zones as well as the effects of distributed mass and stiffness. Solution...
Probabilistic Structural Response of a Turbopump Blade to Random Pulse Loading
The objective of this work is to develop probabilistic models of the response of a Space Shuttle Main Engine (SSME) turbopump blade to random impact loading. These loads are caused by...
A Probabilistic Comparative Study of Various Base Isolation Systems?Nonstationary Earthquake Excitation
A probabilistic comparative study of various base isolation systems is carried out. The laminated rubber bearing with and without lead plug, the resilient-friction, and the EDF base isolation...
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