Environmentally Sensitive Construction Procedures
Construction procedures produce disruptive effects on human and natural environments. Adverse impacts can be minimized best by environmentally sensitive planning and responsive designs....
How the Soviets Build on Permafrost
A report is given on the Second International Conference on Permafrost, held in Siberia in the USSR, July, 1973. The conference covered: thermal aspect of permafrost evolution; regional...
Germany Constructs Steel Box Girder Landmark
The designer of a steel hollow box girder bridge in West Germany describes the design process and gives some construction details. Longest possible spans were sought because of environmental...
Canadian University to Launch Building-Engineering Program
To meet the practical needs of the building industry, Sir George Williams University (Montreal) plans to launch this fall a building-engineering program. The new curriculum is expected...
9000 psi Concrete�� Why? Why not�
High strength concrete is being used in many high-rise apartment and office buildings. In this case, high strength means 9000 psi (62.0 MPa). Quality control, aggregate availability and...
Helicopter-Erected Tower Crane Demolishes Buildings
A signigicant logistics and scheduling problem existed for the demolition of these old buildings and the erection of a new one in the middle of an existing plant. Careful construction...
Urban Freeways and Changing Social Values
One key reason for undertaking the $90 billion Interstate Highway System �even though the name may not so indicate? was traffic congestion in and near cities. The intercity segments of...
8-Story Building Moved to Avoid Wrecker's Ball
In Bogota, Colombia, a 7000 ton (15400kips) was moved almost 100 ft (30 m) to make way for a much needed highway arterial. Instead of wrecking the structure, an apartment building in a...
Difficult Dam Problems�� Stilling Basin Redesign
A landslide of major proportions occurred during construction of Silver Jack Dam in western Colorado. This slide required relocation and redesign of the spillway conduit and basin. Hydraulic...
News in Bridge Decks
This is the second of two articles on short span bridges. The first, in the July issue, described cost-cutting ideas in design. This article focuses on bridge decks: expansion joints,...
Salt Damaged Bridge Decks: Cathodic Helps
Cathodic protection of bridge decks against spalling caused by deicing salts has been demonstrated effective in decks already damaged. Construction of new decks may use other means to...
The Sinking of the Amsterdam Metro
Subway construction was not practical in Amsterdam, The Netherlands, until this new placement technique. Most of the buildings in Amsterdam rest on old, untreated wooden piles that would...
Competitive Alternative to Minority Quotas/Goals
The City of Chicago and contractors working in the city have taken a big step toward solving the affirmative-action problem. Many of the plans through which the Federal government has...
Reinforced Earth: A New Alternative for Earth Retention Structures
Using a variety of projects as examples, the authors demonstrate the versatility of the patented Reinforced EarthTM...
Tunnel under Alps Uses New, Cost-Saving Lining Method
Contractors of the Tauerntunnel through the Alps, near Salzburg, Austria, encountered very bad geology�� heavily distorted, preloaded rock under an overburden up to 3,300 ft (1,000-m)...
An Engineer Rebuts a Contractor's Charges of Unfair Contracts
An engineer responds to the article, Are Construction Contracts Fair, (CE, May, 1975) by contractor George A. Fox and lawyer Max E. Greenberg. Engineers should not be given additional...
What Has ASCE Done for Me Lately
President Sangster recalls highlights of ASCE's 1974-1975 year, among them: The White House is listening more closely to Society views, as witness its thoughtful reply to...
Engineering the First Mass Transit Tramway
Aerial tramways are not normally considered for a cross-town mass transit system. They are no longer limited to the ski resorts since construction of the link between Manhattan Island...
Largest and Lightest Fabric Roof to Date
A dome concept that could change roof design throughout the world is being used on the new Pontiac Metropolitan Stadium in Michigan. The roof is a cable restrained air supported fiberglass...
Proven Organic Coatings for Long Term Protection
Recent advances in coatings materials and their application make possible improved protection of structures in normal or agressive environments. Shopcoating and field application are compared....
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