Top-to-Bottom Construction in High-Rise Buildings
This top-to-bottom construction method, called jackblock is a cousin of lift-slab. The main components are the jack and concrete block, hence the name. The top story of a building is constructed...

Stub Girders Cut Steel Use
One innovation in steel building construction, now 10 years old, is the steel stub girder floor framing system. By using a girder that is a composite of steel girder, metal deck and lightweight...

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...

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...

Prefab Structural Components Solve Expansion Problem
Another story was added onto an existing low-rise building, where soil strength was so low that the new floor had to be built by sinking new columns down to a sounder stratum, placing...

Aerated-Pile Composting: A Promising New Alternative for Sewage Sludge Disposal
In the past several years, traditional methods of sludge disposal such as incineration and ocean dumping have come under fire from environmental groups and the EPA. This has sparked a...

Drexel Students Build Space Frame as Senior Project
Drexel University's geodesic tri-span is an open-air monumental structure conceived, designed, fabricated and constructed by a group of senior civil engineering students to...

Sled Mounted Hydro-Jet Injector Buries Transatlantic Cable
A need for reliable and uninterrupted overseas telephone communications required that the transatlantic cable (TAT 5) be placed in a secure position below the ocean floor where it could...

502-ft Diameter Laminated-Timber Dome Provides Fast, Low-Cost Cover for Arizona Stadium
Varex Dome, a 502-ft diameter engineering marveel of glue laminated timber, was built in record six months erection time. This dome shell structure forms both walls and roof for the new...

Rebar Splices: Cutting Costs, Avoiding Errors
Practical advice for cost-cutting in reinforced concrete construction suggests improvements in accepted design and specifications, procedures and specific items. Brief recommendations...

Computer Slashes Time and Cost of Structural Design
An existing computer program for designing floor framing was modified to simplify usage. A preprocessor program was written to reduce the amount and complexity of the input data. A description...

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...

California Soon to Have Platform in 850 Ft of Water
Exxon's oil drilling and production platform, to be placed off Santa Barbara, Calif. next July, will stand in water twice as deep�� 850 ft versus about 420 ft�� as any other...

Albany South Mall: Largest State Government Complex
Among the nominees for the Outstanding Civil Engineering Achievement Award of 1976, the Albany Mall, consisting of 12 major structures, is here described with many photos and sketches....

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...

American Wooden Bridges
Wooden bridges are inimitably American. Their practicality, individuality, and ruggedness are traditional characteristics associated with our country. This publication catalogues some...

Pipeline Bridge Uses Timber Arches
An arch bridge is utilized for the purpose of providing a river crossing for a water supply pipe. Tidal influence, an unfavorable riverbed situation complicated by estuarial and other...

Short Span Bridges
Short span bridges, seemingly simple and innocuous structures, in fact embody many interesting problems and developments: The need to replace hundreds of thousands of bridges (safety and...

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...

 

 

 

 

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