Jacked Pipe Provides Roof for Underground Construction in Busy Urban Area
Construction of a major underground station for the metro in Antwerp, Belgium was done in a busy downtown area employing a method that virtually eliminated ground subsidence. The method...
Transportation Engineering Research Needs
In June 1979 a workshop on Civil Engineering Research Needs was convened by the National Science Foundation and ASCE. Of 10 subfields into which civil engineering was split, one was transportation...
World's First Iron Bridge
In 1779, using a new man-made material, skilled English workmen built a single-span bridge of cast iron over a steep river gorge about 140 miles northwest of London. The result was a 424-ton...
Repair and Strengthening of Old Steel Truss Bridges
During the early 1900's, numerous pin jointed steel bridge trusses were constructed throughout the United States. In the intervening years, these trusses were replaced by...
Structural Design of Tall Concrete and Masonry Buildings
This is the first of the ASCE five-volume series on Tall Buildings. Though the tallest skysrapers are of steel, the majority are of concrete?? nearly 65 percent. The selection, analysis...
Pittsburgh's Troubled Bridges: What to Do About Them�
The Pittsburgh area is troubled by old bridges that are badly deteriorated. The metropolitan area has more bridges�� 1,700�� than any other. And some 66 of them have weight limits posted....
TVA Cuts Deep Slot in Dam, Ends Cracking Problem
In 1972, cracking in the concrete dam at TVA's Fontana project embarked TVA on a four-year program of investigation, analysis and repair. Thermal expansion in the downstream...
Epoxies � Miracle Materials Don't Always Give Miracle Results
In civil engineering applications, in the past 15 years epoxies have become widely used and have given excellent performance in floor surfacing, corrosion protection, repair of cracked...
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...
Full-Depth, Full-Width Design, and Prestressed Concrete Pave the Way for Arizona's Highways
In an attempt to resolve design problems of Arizona's non-reinforced portland cement concrete pavements, a series of test installations are being made involving a comparison...
What's New in Concrete and Concrete Floors�
What's new in concrete and concrete floors? Dig into that subject and you find that among the most interesting and important recent developments are (1)Post-tensioned flat...
Fatigue Cracking�Problem for Welded Steel Bridges
A recent problem with welded steel bridges is fatigue cracking at welded details. Fatigue cracks begin in small flaws or discontinuities at welded connections and grow to a critical size...
Retaining Walls: Taking It From The Top
Since 1958, fully anchored curtain walls have been used increasingly to retain slopes in Brazil where topographic, climatic, and geologic conditions are extremely favorable to landsliding...
Counteracting Chloride-Induced Damage to Bridge Decks with Latex and Plastic
Salt used to control ice causes deterioration of reinforced concrete bridge decks, but recent developments, though still somewhat expensive, can prevent deterioration of existing decks....
New River Gorge Bridge: World's Longest Steel Arch
For 45 years, the Bayonne Bridge had reigned as the world's longest steel arch bridge. No longer. The New River Gorge Bridge in West Virginia has a steel arch spanning 1700...
Second Hampton Bridge-Tunnel Complete
The second Hampton Roads bridge-tunnel, which cost $96,000,000, opened to traffic on June 3, 1976. It is a two-lane facility carrying traffic across 3.5 miles of water between Hampton...
Newark Airport Pilots Cost-Saving Runway Paving Concept
The NYC Met Section nominee for the 1978 Outstanding Civil Engineering Achievement Award was the expansion of Newark International Airport. The $200 million redevelopment included a new...
Building New Bridges from Old
The Duluth, Missabe and Iron Range Railway Co. needed a new 150-ft (64-m) two-span railroad bridge. Minimum time and low cost were the demands. In response, the designers used steel girders...
Reinforced Concrete Research Council: Why So Successful�
At 30 years old the first-formed of ASCE's 14 research councils, the Reinforced Concrete Research Council is also one of the most successful. Some 40 RCRC research projects...
Reservoir Outlet Extended Above Silt to Prevent Clogging
Accumulation of silt in an on-stream water storage reservoir almost completely buried the concrete tower originally provided as an outlet intake shaft for releasing stored water through...
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