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Cable Stays Catch On
The three completed cable stayed bridges in the U.S.�Pasco-Kennewick in Washington, Luling-Destrehan in Louisiana and East Huntington in West Virginia�will soon be joined by another half...

Beauty and the Bridge
At the California Department of Transportation, a special aesthetics unit works closely with the design engineers in the Division of Structures, which has won almost 400 prizes for its...

Interstate Agreements for Water Transfers
Any state is typically subjected to opposing forces that wish to 1) preserve limited water resources for future in-state uses, or 2) to export that resource for out-of-state use. Statutes...

Tunneling Around Ft. McHenry
The world's largest underwater tunnel was built out of sight and sound of Ft. McHenry. The 4,000 ft tunnel needed to take I-95 from shore to shore had to be extended to 7,200...

Rehabbing under Traffic
Redecking the Golden Gate Bridge with a light weight orthotropic steel plate deck left the 49 year old monument 11,000 tons lighter, 2 feet wider, and ready to carry traffic for the next...

Highway Infrastructure
Opportunities for Innovation
Our national commitment to financing the rebuilding of America's highway intrastructure represents a very expensive, long term investment. The challenge facing highway engineers...

Equipment Requirements for Concrete Recycling
Concrete recycling projects have been completed in a number of states. As the transportation infrastructure ages, concrete recycling will become a common construction operation. Concrete...

Nondestructive Evaluation of Timber Bridge Piles
A nondestructive technique for the determination of the in-place strength of timber bridge piling is presented herein. The testing technique is the ultrasonic wave propagation method in...

Infrastructure in a Hurry
The City of Austin, Texas has experienced tremendous growth since the early 1970s. Until recently, however, infrastructure development lagged. Now the city is engaged in a $1 billion infrastructure...

Optimization for Overall Stability
This paper synthesizes design of trusses for linear stability constraint as an optimization problem where linear stability is defined as a generalized eigenvalue problem and presents a...

Microcomputer Application of the Florida Standard Urban Transportation Modeling Structure
Over the past five years the Florida Department of Transportation (FDOT), in conjunction with the twenty-one Florida Metropolitan Planning Organizations, has developed the Florida Standard...

Building a Bridge Within a Bridge
The City of Grand Rapids had to replace an aging bridge connecting vital commercial centers on opposite sides of Michigan's Grand River. The city's consultants...

Timber in Bridges of West Coast
Experience has shown that timber can function very well as a bridge material. Proper inspection procedures combined with a structured maintenance program can improve the performance of...

Winter Highway Construction
The purpose of this paper is to describe a study of the feasibility of constructing highways in the wintertime in cold regions. The study, sponsored by the Alaska Department of Transportation...

Software for Optimum Design of Highway Bridge Beams
A software system for analysis and optimum design of welded plate beams subjected to AASHTO highway bridge loads and specifications is described. The system has the capability to design...

Interactive Bridge Optimization Program
This paper presents the development of a design methodology that includes the structural optimization process as an integrated component of girder bridge design. The optimization process...

Project Management in Wisconsin
The Wisconsin Department of Transportation has a decentralized organization with a central office staff providing functional and policy analysis and eight district offices scattered throughout...

Subdivider: Advanced Subdivision Design with the IBM-PC
SUBDIVIDER is an IBM-PC program which aids engineers in the process of dividing tracts of land into lots, streets, and building floor plans. It can be used for the design of traditional...

Finite Element Analysis of Structural Details in Large Steel Bridge Superstructures
Various approaches for the finite element modeling of the connection details in large steel bridge superstructures are presented. It is noted that an accurate analysis of these details...

Computer Simulation of the Overload Behavior of Steel Multigirder Bridges with Cracked Girders
Various approaches of determining the structural response of steel multigirder bridges with cracked girders are presented. It is noted that linear finite element packages with three dimensional...

 

 

 

 

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