Engineer's Notebook: One-step Formula for R/C Tension Steel
In the design of reinforced concrete beams, after loadings and materials are defined, the first step is to assume a beam depth. Then the required steel area and beam width are determined....
At Four Western Stadiums, Wood Comes Out on Top
In recent years, several long-span timber roofs have been constructed atop large arenas and stadiums in the Western states. The choice of glued-laminated timber offers designers good economy,...
Rx�Treated Lumber & Metal + Corrosion Ailments
The use of metal elements in contact with fire-treated lumber requires special precautions. It is a problem that has not received much attention in the literature directed to the design...
Evaluation, Maintenance and Upgrading of Wood Structures
Prepared by the Subcommittee on Evaluation, Maintenance, and Upgrading of Timber Structures of the Committee on Wood of the Structural Division of ASCE. ...
Compression Rings Support Deep Cut
The plans for building the Cuyahoga Valley Interceptor Lift Station in Cleveland, Ohio, called for 126 ft. (38.4 m) by 105 ft. (32 m) construction, some 80 ft. (24.4 m) below grade. Bracing...
America's Covered Bridges
Soon after the Revolutionary War, bridge construction became more important in the United States. Early builders developed by trail and error an economical, permanent, long-span covered...
Baltimore Borrows Bridge Beams
A look at the construction of the Baltimore Convention Center, its four domelike exhibition halls, the main lobby and its service areas. The Center's four columnless exhibit...
Five-Story Timber Framed Building
Multi-story glu-lam frames used as a structural system in the Terman Engineering Center, Stanford University. Covers the problem and solution of combining timber framing with reinforced...
Saving the U.S's Rapidly Dwindling Farmland and Other Priceless Natural Resources
Key to land management in the U.S., according to experts at the Council on Environmental Quality, is management of federally owned lands. U.S. needs to protect prime farmland, wetlands,...
Timber Trestle Carries Air Force Bombers
A 12-story high timber trestle, built at Kirtland Air Force Base near Albuquerque, N.M., is the world's largest all-wood structure in terms of board-feet of timber used. Its...
Design and Construction of Long-Span Metal Culverts
Long-span metal culverts are built of corrugated-metal plates bolted together. They have spans exceeding 15 ft. Principal applications include use as drainage structures, grade separations,...
Fighting Fire With Concrete
Fire departments have been required to handle an increasing number of fires in multi-story buildings. A fire department in a rapidly developing suburb of Indianapolis, Ind., undertook...
Highway Widening Proceeds Behind Concrete Median Barrier
Precast concrete median barrier curb is being used temporarily to protect both workmen and traffic through the 3.1-mile long construction zone of a widening project along the Garden State...
Aerated-Pile Composting: A Promising New Alternative for Sewage Sludge Disposal
In the past several years, traditional methods of sludge disposal such as incineration and ocean dumping have come under fire from environmental groups and the EPA. This has sparked a...
Drexel Students Build Space Frame as Senior Project
Drexel University's geodesic tri-span is an open-air monumental structure conceived, designed, fabricated and constructed by a group of senior civil engineering students to...
Precast Veneer Replaced By All-Precast Structure
Utilizing engineering solutions to architectural problems greatly enhanced the architectural appearance of this building. Long-span prestressed, light weight concrete beams, post-tensioned...
502-ft Diameter Laminated-Timber Dome Provides Fast, Low-Cost Cover for Arizona Stadium
Varex Dome, a 502-ft diameter engineering marveel of glue laminated timber, was built in record six months erection time. This dome shell structure forms both walls and roof for the new...
State-of-the-Art Report Composite or Mixed Steel-Concrete Construction for Buildings
This report examines the interacting behavior of concrete with structural steel in building construction. Topics covered include composite columns, composite beams, trusses, and slabs,...
Stability of Structures Under Static and Dynamic Loads
Proceedings of the International Colloqium on Stability of Structures Under Static and Dynamic Loads, held in Washington, D.C., May 17-19, 1977. Sponsored by the National Science Foundation....
University of Idaho Barrel-Arch Roof Wins Outstanding Structural Engineering Award
The world's longest span wood structure now covers the football stadium at the Univ. of Idaho in Moscow, Idaho. The trussed arch consists of an upper and lower wood deck connected...
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