Plastic Potential
Some 220,000 tons of epoxy-coated steel has been used in the construction of bridge decks since 1987, but some have raised questions about its long-term durability. New materials for prestressing...
Quality Control: Bridge Steel Fabrication and Erection
This paper examines the Quality Control Program Plan (QCPP) developed by Frederic R. Harris, Inc. (FRH) for fabrication and erection inspection of over 5,448,000 kg of AASHTO Fracture...
Hassle-Free Bridge Rehab
Engineers involved in Cleveland's Main Bridge rehab invoked whatever was necessary to keep area traffic moving and the bridge closure period to a minimum. They helped change...
In Search of Better Load Ratings
Typically, engineers must make a number of subjective assumptions regarding loading and response behavior when they develop a load rating for civil structures. As a result, many unknowns...
LRFD for Timber Structures
The use of load and resistance design (LRFD) methodologies is increasingly becoming the standard analysis procedure for engineering design. The concrete industry has used a variation of...
Lateral Loading Curves from Pressuremeter Tests
The large drilled shafts for the proposed Klamath Falls Bridge, which are to be founded in diatomaceous silts, were to be designed to withstand earthquake induced large cyclic loading....
Bi-Directional Load Testing of Shafts to 6000 Tons
This paper describes the use of Osterberg cells (O-cells) to perform bi-directional load testing on full size production drilled shafts for a major bridge foundation near Owensboro, Kentucky....
Going International: Profit or Peril?
Six veterans of the international engineering and construction market discuss the financial risks of international work, including currency risk; expatriate living conditions; difficulties...
Vietnam: Worth Looking Into
If it is to enter the world economy, let alone play catch-up with the booming economies of some of its neighbors, Vietnam requires massive numbers of infrastructure projects: roads, bridges,...
Keeping Cables Calm
Cable vibration and corrosion are potential problems relating to cable-stayed bridges. Nonetheless, owners think their structural elegance is worth it, and increasingly longer cable-stayed...
Arches For A Parkway
The final phase of construction on the Natchez Trace Parkway (which follows a centuries-old 450 mi trail between Natchez, Miss. and Nashville, Tenn.) is nearing completion almost 60 years...
A Dome To Remember
Under intense pressure from all sides, a trio of engineering and architectural firms working in San Antonio, Tex., turned the political coal of a stadium everyone wanted to build (but...
Calendar: Bridges 1994
Featured bridges are: Briggs Bridge (AK); Stone Arch Bridge (NY); Rio Grande Gorge Bridge (NM); Bridge Street Bridge (MI); Hennepin Avenue Bridge (MN); Egypt Pike Bridge (OH); William...
Roller Compacted Concrete Arch/Gravity Dams?South African Experience
The paper traces the development of roller compacted concrete (RCC) dams in South Africa, and in particular the application to arch/gravity dams. The Department of Water Affairs and Forestry...
Final Design and Construction of Gibraltar Dam Strengthening
The results of a 1983 safety evaluation of Gibraltar Dam indicated that the dam did not meet seismic safety standards. A remedial scheme involving the addition of a roller compacted concrete...
Santa Cruz Dam Modification
Santa Cruz Dam was the first concrete arch dam in the United States to be modified using an roller compacted concrete (RCC) buttress. Innovative techniques included forming the stepped...
Principles of Holistic Medicine Applied to Infrastructure Maintenance: A Test Case
A humorous consideration of the question of whether holistic medicine�that is, the treatment of the entire physical and emotional configuration of the patient instead of the solely medical...
Learning to Love NDT
Sometimes overblown claims and the practical limitations of early nondestructive tests for concrete have left many civil engineers leery of NDT methods. While some are aware that NDT has...
Designing Reinforced Rock
The reinforced rock arch design method has been used to stabilize coal mine excavations for 40 years, but so far has been applied to only a few tunnels. The use of rock reinforcement develops...
Investigation of Coastal Conditions at Oregon Inlet, NC for the Replacement of the Herbert C. Bonner Bridge
The Bonner Bridge across Oregon Inlet was constructed in 1962 and is approaching the end of its service life. Planning for a future crossing must consider natural inlet migration expected...
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