Retrofitting Aerodynamic Performance of Bridges
This paper is a review of aerodynamic retrofit techniques for long-span bridges. The discussion includes a description of the aerodynamic problems of static divergence, flutter, buffeting,...

Inclined-Cable Aerodynamics
A series of wind tunnel tests have been conducted to clarify the fundamental mechanism of the vibration of the inclined cables of cable stayed bridges. The influence of the cable orientation...

Looking at the Past
The story of bridge building is related through a look at the bridges of the past, from earliest bridges of record to the latest cable-stayed successes. Progress in bridge development...

Weathering Steel Bridges ? State of the Art
State of the art dissertations on materials that have been in commercial use for over a century are not likely to illustrate major new and innovative breakthroughs. Instead, the state...

Concrete Bridges � State-of-the-Art
The paper reviews the types of concrete bridge decks in most common use today, with particular emphasis on recent developments. Current trends in substructures and foundations are also...

Current Research and Future Developments
A review of current research projects at the National Science Foundation on bridge engineering are reviewed and discussed with respect to immediate and future impacts. A look into the...

Study of Partially Prestressed Beams With Unbonded Post-Tensioning
Test on partially prestressed members with bonded Post-Tensioning started recently. Experimental information regarding partially prestressed members having unbonded post-tensioning is...

Equilibrium-Serviceability Design of Hyperstatic P. C. Beams
A practical flexural design procedure for continuous prestressed concrete girders based on simulataneously ensuring specified margins of safety against both limit states of section and...

Forces in Unbonded Tendons
A rational analysis procedure for the calculation of tendon forces in prestressed beams with unbonded tendons is discussed. The prestressing tendon is analyzed as a tight-string which...

Behavior of Externally Prestressed Concrete Girders
A new technique for prestressing concrete girders is presented. The girders are externally prestressed by epoxy-bonding fiber-composite plates to the tension flange of the cambered girders....

Shear Strength of P.P.C. Beams
50 beams of partially prestressed concrete were tested and 82 data of the ultimate shear-strength were obtained. Based on these results, this paper studies the effects of the degree of...

Analysis of Slender Prestressed Concrete Columns
This paper briefly describes an analytical model developed to study slenderness effects in prestressed concrete columns and walls and predict the characteristics of such members over a...

Time Dependent Analysis of Partially Prestressed Composite Members
The object of the paper is to develop a computer based procedure for analysis of members made up of precast prestressed concrete sections with cast-in-place topping. The procedure accounts...

Guidelines for Application of FEM to RC Design
In this paper, the main contents of the guidelines for the application of FEM analysis to the design of reinforced concrete structures are presented. The guidelines were published by the...

Application Examples of FEM to Concrete Structures
The paper illustrates the practical application of the FEM by means of examples for plain/reinforced/prestressed concrete structures. These examples, including both global and local analyses...

Macroscopic Models for R/C Shear Walls
In this paper, the discussion is mainly focused on four macroscopic models, recently proposed by Japanese researchers, for predicting ultimate strength of reinforced concrete (R/C) shear...

Verification of Macroscopic Models for R/C Walls
Macroscopic models utilized in a plastic analysis for predicting the ultimate strength of reinforced concrete members have been developed in Japan as well as in Europe. In the JCI committee,...

Verification of Macroscopic Models or RC Walls by FEM
Several macroscopic models based on the limit analysis have been proposed for obtaining the ultimate strength of reinforced concrete shear walls in Japan. When using these models, it is...

Parametric Analyses of RC Shear Walls by FEM
In this paper, nonlinear behavior of reinforced concrete shear walls is studied by using the finite element analysis. We applied numerical analyses to a wide range of parameters, such...

The Validation Problem?Historical Developments
Validation of a probability consists of the estimation of the reliability of the probability. Validation is important when probabilities are based on data, rather than theoretical exercises....

 

 

 

 

Return to search