Prison Construction by Committee
Prisons are providing tremendous engineering, construction and management opportunities. Many states are under court order to upgrade their correctional systems. The tremendous volume...

Underwater Testing in the Development of EVA Support Systems
The ability to simulate realistic zero-g conditions on Earth is of prime importance in determining if various orbital operations associated with extravehicular activity (EVA) can actually...

Epoxy Update
Epoxy-coated reinforcing steel protects against corrosion if it is used correctly. Several construction practices, such as prescribing the limits on permissible coating damage due to shipping...

Real World Analysis
The structural concepts, seismic analysis and design of five recent highrise structures is presented in this paper. The paper deals with the problem of multistory buildings having Structural...

For Want of a Bolt...
While counterfeit bolt-nut imports make sensational headlines, civil engineers should be more concerned with actual construction problems that have arisen in the past decade. Experts say...

Seismic Design and Construction of Complex Civil Engineering Systems
This publication presents information about practices for planning, designing, and constructing civil engineering systems for mitigating earthquake effects. Concepts dealing with defining...

Structural Scale Models: Beyond the Computer
The authors build balsa wood structural scale models to supplement their 3D CADD designs because, for complex framing systems or sites with access problems, the models help clients and...

Stopping the Cracks
It is generally agreed that reinforced concrete in parking garages especially in the deicing salt environment is exposed to unusually hostile service conditions. Deterioration of reinforced...

A Safe Skyscraper For the Seismic City
When completed in late 1989, the 73-story First International World Center will be the tallest office building in Los Angeles. The steel structure of the building was designed to be ductile...

Fly Ash Fills a Valley
The Pennsylvania Department of Transportation (PennDOT) recently placed narly 400,000 tons of fly ash in a structural fill along I-279 near Pittsburgh. The fly ash, believed to be the...

The Precast Pier
For the U.S. Navy's Strategic program, a 1,410 ft long pier was constructed on New York City's Staten Island. The combined efforts of three engineering firms,...

Caissons Skirt a Tunnel
Exchange Place Center is a 490 ft, 30 story office tower built directly over the existing transportation hub in Jersey City, N.J., where trains and buses meet the PATH Tubes that carry...

New Horizons in Construction Materials
While civil engineers have, for centuries, built structures and other physical facilities using whatever materials are available to them, there is always the need for stronger, more durable,...

Aeration
A Wastewater Treatment Process
This manual summarizes current aeration practices in wastewater treatment, and includes both theoretical and practical guideline for the design and operation of such unit processes. The...

Simulated Water-Quality Changes in Detention Basins
A study has begun to simulate movement of stormflow through detention basins at four locations in the Irondequoit Creek watershed and determine the effect on peak flow and water quality....

Urban Runoff Management?An Industry Perspective An Opinion
Coors presently produces about 17 million barrels of beer per year from a single plant about 15 miles west of Denver. The company chose to keep the responbibility for the quality of its...

Source Control of Oil and Grease in an Urban Area
We explored a variety of techniques to remove oil and grease from urban stormwater runoff. Previous work has shown that relatively high concentrations and substantial mass loadings of...

Source Tracing of Toxicants in Storm Drains
Sources of toxic chemicals in storm drains are often difficult to locate and even more difficult to control. Receiving environment chemistry, storm drainage maps, land use information,...

Civil Engineering at the Threshold of the 21st Century: Focus on the Emerging Professional Environment
The development of America's surface transportation into the 21st century confronts the civil engineer with a distinctively new challenge arising from the twin demands of...

Implementing a State PMS
Arizona State Pavement Management System (PMS) is described in this paper. Experience shows that many factors must be considered in deciding how to maintain a particular mile of the road...

 

 

 

 

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