Response Modification Factors for Buildings and Bridges
Response Modification Factors (RMF) are often used for the seismic design and the safety evaluation of buildings and bridges. The advantage of using RMF is to account for the nonlinear...
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...
Probabilistic Concepts of Redundancy and Damage Tolerability for Structural Systems
Intermediate states of structural systems (prior to system collapse and after component loss) are focused herein. This area relates to important issues such as redundancy and damage tolerability....
Structural Error Identification for Control of Construction Accuracy
In cases of large-scaled structures it is very important to keep the criteria of construction accuracy and therefore to correct construction errors if any considerable errors are found...
Seismic Reliability of Non-Linear Structures with Stochastic Parameters by Directional Simulation
The application of improved Monte Carlo method by Directional Simulation and Importance Sampling is presented with reference to the assessment of seismic fragility of reinforced concrete...
Analysis of Nonstationary Random Vibrations
Nonstationary random vibrations occur in structural mechanics as well as in vehicle dynamics. Very often the nonstationary excitation process can be modelled as stationary white or colored...
Dynamic Load Computation for Flexible Guideways Under Moving Vehicles Within a Multibody Approach
This paper addresses the problem of the dynamic interaction of vehicles with their supporting guideway. Because of topographical and environmental reasons, modern railways and magnetically...
On the Adequacy of Linearized Methods for Control of Nonlinear Bridge Oscillations
In this paper, control of nonlinear oscillations of a single-span flexible bridge with light damping is examined to improve bridge safety and reliability. The control forces are applied...
Model Identification of an Arch Bridge for Dynamic Analysis
The dynamic responses of a steel deck tension-tied arch bridge subjected to earthquake excitations were investigated. The 189 m (620 ft) Birmingham Bridge located in Pittsburgh, PA was...
Fatigue Reliability and Remaining Fatigue Life of Existing Steel Rail-Road Bridges
This paper presents a fatigue reliability model for the reliability-based evaluation of remaining fatigue life of existing rail-road bridges. It is demonstrated that the simple fatigue...
Fatigue Reliability of Prestressed Concrete Bridges
Experimental studies indicate that fatigue is a random phenomenon. Therefore, the approach is based on probabilistic methods. The fatigue life of the prestressed concrete girder is estimated...
Qualitative Design for Safety and Reliability
This work aims at developing a fundamental methodology for the qualitative reliability design of machines and structures to cope with the present situation of small production with a wide...
Lifetime-Maximum Load Effect for Highway Bridges Based on Stochastic Combination of Typical Traffic Loadings
An efficient and accurate method is proposed for probabilistic assessment of lifetime maximum load effect on highway bridges caused by traffic load. Probability distribution of the lifetime...
Probabilistic Traffic Load Models and Extreme Loads on a Bridge
This paper contains a summary of the intensive traffic measurements collected in France and Europe, and of the probabilistic distributions adopted for the main parameters. The evaluation...
Reliability-Based LRFD For Bridges: Theoretical Basis
This paper develops a theoretical basis for obtaining probability-based load combination criteria for structural design. For choosing the load combinations and for determining the factors...
Probabilistic Evaluation of Load Factors for Steel Rigid-Frame Piers on Urban Expressway Network
A procedure is proposed for calculating the optimal load factors for steel rigid-frame piers using the extended level 2 reliability method. Twelve typical types of pier structures are...
Probabilistic Basis for Bridge Design Codes
There is a growing interest in the development of rational design criteria for bridges. The fundamental problem is evalution of the loads and load carrying capacity. However, load and...
Strategies for Bridge Inspection Using Probabilistic Models
This paper describes the application of probability analyses in planning an inspection program for highway bridges. When damage in the form of fracture and cracking is the major concern,...
Analysis of Bridge Maintenance and Rating Procedures
In the United States, bridges are routinely rated to evaluate their existing conditions. The formula used to evaluate bridges is called the Sufficiency Rating Formula. The formula uses...
Bridge Live Load Models
This paper describes the analysis of weigh-in-motion data and the conclusions drawn. Statistical distributions of the effects induced in typical bridges due to single vehicle events are...
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