The Modernization of a Small Hydro Plant
The Cornell Hydro in Northern Wisconsin was torn down, rebuilt, re-equipped and put into profitable operation. After extensive structural modifications to the old plant, three new 10,000...
James B. Eads and His St. Louis Bridge
Eads Bridge at St. Louis, a century old engineering achievement, was designed, promoted, and built by an intensely dedicated and self-educated man, James B. Eads. This structure was an...
Philadelphia Bridge Sparked Growth of Prestressed Concrete in the U.S.
Prestressing has been used for centuries. For instance, iron bands were heat-shrunk over built-up wooden wheels to increase their resistance to damage. In 1888, a man named Jackson from...
Design/Construct Companies�� Builders for Industry
Highlights in the evaluation of design/construct companies. How Koppers is establishing better dialog with all 7,000 professional employees. How Fluor has grown thanks to gutsy hiring...
George Washington Bridge Redecked with Prefabricated, Prepaved Steel Panels
The Port Authority of New York and New Jersey has embarked on a �37,000,000 project to totally replace the upper roadway of the 46-yr old George Washington Bridge. The scheme, chosen from...
State-of-the-Art Report Composite or Mixed Steel-Concrete Construction for Buildings
This report examines the interacting behavior of concrete with structural steel in building construction. Topics covered include composite columns, composite beams, trusses, and slabs,...
Kansas City Bank Tower Features Water-Filled Columns, Exposed Spandrels
In this first article in a series on recent innovations in structural steel design, the spotlight is on the 20-story Mercantile Bank Tower in Kansas City. This structure features several...
Steel Frame, Precast Floors Meet Impossible Time Constraints
Only 13 months were allotted for expansion of the Captain Cook Hotel in Anchorage, Alaska, which meant that construction would have to continue through the winter months with little down...
World's Third Longest Cantilever Bridge
This report includes the planning, design and construction procedure of the world's third longest double deck, cantilever bridge, Osaka Port Bridge, which was completed in...
La Guardia Airport Parking and Terminal Frontage Structure
One of the world's largest parking structures, at New York City's La Guardia Airport, is of special interest because the structural steel has no fireproofing....
Paul Bunyan Among Offshore Steel Structures
The world's two largest drydocks, the larger 1,150 x 800 ft in plan were used to assemble on land the four steel jackets. They now stand in the North Sea in about 400-ft of...
New Jack-Up Drill Rig Extends Their Range Into 375-Ft Water Depth
A new design of jack-up drill now building for the Gulf of Mexico extends from 250 ft to 375 ft, the depth of water in which they operate. Until now what limited their depth was their...
Condeep�In 400 Ft of Water, Concrete Caisson Requires No Piles
The Condeep structure consists of (1) 19 cylindrical tanks each 66-ft diam and 164-ft high that together will store up to 900,000 bbl of oil; (2) the extension upward 300-ft more of three...
Supertanker Fixed Berth in Open Ocean
The oil terminal offshore Tomakomai, Japan, is the world's first fixed dock in open ocean. It must withstand 150 mph typhoon winds. To minimize time, cost and danger of open...
Concrete Barge of First Totally Offshore LPG Facility
Some 20 miles off Java, below waters 95-ft to 135-ft deep, is the Ardjuna Field, from which oil and gas soon will be taken. The adjacent coastal land is marshy, so onshore storage would...
Can a Computer Reduce Your Spec Writing Costs�
The most important factors in evaluating use of a computer to write specifications are: the frequency with which a spec section is repeated; and the changes needed to go from master spec...
Gabions, Perforated Pipe and Gravel Serve as Fish Screens
A type of structure to prevent juvenile salmon from diverting to irrigation ditches has been developed on the Merced River in central California. It was built after cost considerations...
Steel Stress-Ribbon Concept�� Will It Save Money�
The stress ribbon structure, a fairly new and unusual concept, can be built with central sags of less than 2% of the span length using currently available materials and technology. Possibilities...
University of Idaho Barrel-Arch Roof Wins Outstanding Structural Engineering Award
The world's longest span wood structure now covers the football stadium at the Univ. of Idaho in Moscow, Idaho. The trussed arch consists of an upper and lower wood deck connected...
Birth of the Skyscraper
Before invention of the elevator, six stories was the practical limit to the height of a commercial building. Following the Chicago fire of 1871, building designers there were quick to...
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