Artist in Wood Structures
Julius Natterer is chairman on the Institute for Wood Structures at the Federal Institute of Technology in Lausanne, Switzerland, and designer of more unusual or unique wood structures...
CAD Maps Ocean Floor
This article describes the Navy's use of computer aided design to map-out a 250 sq mi expansion of an anti-submarine warfare training facility in St. Croix, Virgin Islands. Three hundred...
Concrete Strength Record Jumps 36%
A Seattle building now going up has 19,000 psi concrete, the strongest ever in conventional structures. It costs three times as much as conventional concrete, so will not be widely used....
Database Management Systems for Urban Facilities
This paper discusses design and implementation issues associated with the development of database management systems (DBMS) for urban facilties. Many of the experiences described here...
Wind Tunnel Model Studies of Buildings and Structures
This manual provides guidelines on wind tunnel model testing of buildings and structures. Included are procedures required to provide representative information on wind effects experienced...
Expert Systems for Civil Engineers
Technology and Application
This book identifies expert systems technology and describes some applications to civil engineering problems. The first part of the book is on expert system technology. Expert system components...
Exhibits Under Fiberglass
The San Diego Convention Center, scheduled for completion in 1988, is located on 11 acres of downtown land only 150 ft from the bay. It will cost $130 million for total of 1.7 million...
Instant Jails
Prison planners are responding to the explosion in the prison population by stepping up construction of new jails. Because of the pressures imposed by court ordered deadlines, engineers,...
Digestor Do-Over
Digesters at 6 Orange County (Calif.) wastewater treatment plants needed drastic odor control rehabilitation. Repairs included epoxy patching to cracked domes, installation of a geomembrane...
Pipe-lining a Pipeline
This core prestressed concrete cylinder pipe is now lining the inside of a major water supply tunnel in Alaska. Occasionally found in rock tunnels, or buried pipelines, large diameter,...
Milwaukee's Deep Tunnels�No Clone
Tunnel boring machines are excavating nearly 19 miles of tunnels 17-32 ft in diameter as part of Milwaukee's $1.9 billion upgrade of its sanitary sewage system. Laid out to...
Finite Element Idealization for Linear Elastic, Static, and Dynamic Analysis of Structures in Engineering Practice
This report by the Finite Element Idealization Task Committee is a comprehensive aid for modeling structures for finite element analysis. The first part covers static analysis. Aspects...
Mini Hydro at the Hackett Mills Project
The project includes rehabilitation of a timber crib dam and the first use of a Right Angle Drive turbine in the United States to generate power from the 16 feet of head available at the...
Turbine Efficiency Loss Associated with Draft Tube Aeration
Draft tube aeration is one method for improving the dissolved oxygen content of hydroelectric discharges. A simple analytical procedure is presented for estimating the loss in turbine...
Main Canal Headworks Hydroelectric Project
This project is being installed at the Dry Falls Dam, Coulee City, Washington, adjacent to the Main Canal Headworks which controls the irrigation releases to the Columbia Basin Project....
Construction of Yellowtail Dam & Power Plant 63-65
The Yellowtail Unit of the Missouri River Basin project is located on the Bighorn River in south central Montana. The key feature of the unit is Yellowtail Dam which rises 525 ft. between...
Roller Compacted Concrete and Tunnel Boring Machines?Two Tools for Designers and Planners
Two tools that have come into use fairly recently are roller compacted concrete and tunnel boring machines. These new tools can significantly affect the ability to make new projects cost...
The Sand Bar Hydroelectric Project: A Case History
The Sand Bar project's major features include a reinforced concrete intake structure; 3. 5 miles of twelve foot diameter hard rock tunnel; a reinforced concrete powerhouse...
The Paerau Gorge Multipurpose Scheme
The Paerau Gorge Power Scheme is part of a multipurpose scheme supplying irrigation water and electricity to the Central Otago region of the South Island of New Zealand. This paper describes...
Power Development at Buffalo Bill Dam
Buffalo Bill Dam is on the Shoshone River in northwestern Wyoming near the city of Cody. The dam is a 325-foot-high concrete arch facility with a crest length of 200 feet. The dam was...
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