Applied P-Delta Methods in the Design Office
At first glance some axioms of a P-Delta analysis appear to be paradoxical. First, the P-Delta effects are a direct function of the depth of the structure parallel to the wind direction....
Tall Building Stability -- Practical Considerations
Simple techniques for including lateral stability effects in the design of tall buildings are proposed. The application of these techniques in the design of a 66-story building is described....
Frame Stability - A Canadian Designer's Approach
The deficiencies and fallacies of the simplistic effective column length approach to frame stability are demonstrated through its application to a 57-story rigidly framed building structure....
The Wet Look
The collapse of the Schoharie Creek bridge drew attention to underwater inspection. Underwater inspection of bridges gives engineers a better understanding of the condition of the bridges....
Evaluation of Sediment Transport and Friction Factor Equations Using MOBED
Three sediment transport rate equations and the same number of friction factor equations for mobile boundary channel flows were evaluated using a mobile boundary flow model called MOBED....
Engineering a Corporate Statement
Frito-Lay National Headquarters, Plano, Tex., occupies a 218 acre site in a corporate office park that had been a cow pasture. It was unusual in having mature trees and a natural watercourse...
Another Geotech Import: Deep Soil Mixing
A technique called deep soil mixing (DSM), imported from Japan, has been used to stabilize an existing dam foundation. When the Bureau of Reclamation discovered that Jackson Lake Dam had...
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...
Sultan River Project Operation Study for the Sultan River Hydroelectric Project
The project will be operated to maximize energy production from the Sultan River within the operational constraints imposed by the water demand for the City of Everett and by the instream...
Rock Island District Hydropower
The paper discusses status of hydropower studies within the Rock Island District of the U. S. Army Corps of Engineers. It presents an overview of the low head hydropower studies on those...
Small Hydropower Potential in Missouri
The hydropower potential of small head plants on the Gasconade River was investigated. Since, it is felt that small head plants will have less environmental impact, thus it will be more...
Design and Application of an Open-Loop Control System for Run of River Sites
This paper compares an open loop control system for variable geometry turbines to a closed loop system for fixed geometry turbines. The control systems were designed to operate three submersible...
Hydropower on the Arkansas?A Non-Federal Development
In 1980, Arkansas Electric Cooperative Corporation (AECC) filed preliminary permit applications with the Federal Energy Regulatory Commission for developing the hydropower potential at...
Non-Federal Development at Corps Projects: Ohio River Division Experience
The paper presents the recent experience of the Ohio River Division of the Corps of Engineers (ORD) in non-federal development of the hydropower potential at existing Corps projects under...
Dolores Pumped-Storage Unit?A Case Study in Planning
The Durango Projects Office of the U. S. Bureau of Reclamation (Reclamation) conducted a pumped-storage investigation from 1981 to 1983 on a site in southwestern Colorado. This paper describes...
Piedra Del Aguila�New Hydropower for Argentina
Construction commenced in early 1985 on the 1. 0 billion Piedra del Aguila Hydroelectric Project on the Rio Limay about 1200 km (750 mi) southwest of Buenos Aires, Argentina. The 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...
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...
World's Largest SF6 Gas-Insulated Substation
The Itaipu hydroelectric powerplant is located on the Parana river which forms the border between Brazil and Paraguay. It will be the world's largest powerplant with an installed...
The Sultan River Hydroelectric Project
It took almost 70 years and required over 100 separate local, state and federal permits, but in June 1984, development of the Sultan River was finally completed for the multi-purpose use...
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