Detecting Underground Piping Leaks
Most leaks from underground liquid storage systems occur in the piping rather than the tank itself. The piping system is the most vulnerable component of the system, requiring great care...
Bridges and Transmission Line Structures
This volume on Bridges and Transmission Line Structures contains papers from ten sessions and one plenary session of the 1987 ASCE Structures Congress. Eight sessions cover bridges. A...
Teleport: New Wave Engineering
Between $600 and $700 million will be spent on teleports now being planned in the U.S., presenting interesting challenges to civil engineers. Just as airports and seaports serve as collection...
Converted Wave Energy Transmission, Storage and Integration
Results of a number of full-scale studies of transmission, storage and integration of electricity resulting from wave energy conversion are discussed. These studies involved the floating...
The Just-in-Case Factor
Computer analysis allows bridge designers to take a more precise look at the old structural principle of redundancy. No one can define redundancy, but everybody knows what it means. Two...
Twisting in the Wind
Wind tunnel tests are being used increasingly to test the aerodynamic stability of bridges. Many designers think these tests should be used early in the conceptual design stage, rather...
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...
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...
New Deep Foundations Cut Costs
Two European innovations in deep foundations are highly competitive in cost, time and material. They are the barrette (slurry wall segment) and the bored pile/caisson which is then grouted...
Case Study?Wyre Wynd Hydroelectric Project
To combat rising energy costs, Southwire Company, a manufacturer of wire and cable products headquartered in Carrollton, Georgia, began generating its own electrical power at the company's...
Electrical Design of Small Hydro Plants
Major aspects of electrical design criteria for small hydro power plants used in co-generation schemes are: turbine control, generator and excitation equipment selection, protection relaying,...
End Treatments for Deep Beam Highway Guardrail
End treatments on highway guardrail serve two functions: (1) to make the end safe in case of an impact there, and (2) to provide anchorage in case of an impact adjacent to the end. Two...
Seismic Behavior of Long-Span Cable-Stayed Bridges
Special features of the earthquake-response analysis of cable-stayed bridges, subjected to multiple-support excitation, are presented including a basis for calculation of seismic forces...
Monitoring a Bridge's Pulse
The Sunshine Skyway Bridge, which collapsed in 1980, is being replaced by the Florida Department of Transportation. The new Sunshine Skyway Bridge, which spans Tampa Bay between Bradenton...
U.S. Navy's First Double Deck Pier
The present single level concept of pier construction limits the pier-side service to the fleet. With the ever increasing requirements for utilities to the ships, and maintenance and training...
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...
Microtunneling: No Pipe Dream
Microtunneling machines developed in Japan and Germany can help install pipes, ducts and cables without disrupting urban activities at street level. A microtunnel is defined as having...
Commercially Available Workstation Networks
Twelve commercially available local area networks are compared, transmitting variously over optical fiber, twisted pair and cable. Throughput, tunability, cost and ease of use are discussed,...
Sunshine Skyway Nears Completion
The new Sunshine Skyway Bridge over Tampa Bay in Florida replaces an older structure that had been severely damaged when a ship rammed it during a 1980 storm, taking 35 lives. Its central...
Steel Bridge Counterattack
In bridges, for years steel has been losing market share to concrete, but now the steel industry is making an impressive comeback. One reason is use of load-factor design, which has cut...
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