In the Wet

by Ben C. Gerwick, Jr., (Hon.M.ASCE), Chairman; Ben C. Gerwick, Inc., 601 Montgomery Street, San Francisco, CA 94111,
Paul E. Bach, President; Ben C. Gerwick, Inc., 601 Montgomery St., San Francisco, CA 94111,
George Fotinos, Chief Engr.; Ben C. Gerwick, Inc., 601 Montogomery St., San Francisco, CA 94111,

Serial Information: Civil Engineering—ASCE, 1995, Vol. 65, Issue 5, Pg. 46-47

Document Type: Feature article

Abstract: The concept of using large diameter vertical cylinder piles of steel and concrete is not new. Vertical cylinders constructed in pneumatic caissons go back at least 70 years. Steel cylinders 2 m in diameter socketed into rock and filled with concrete support the first Martinez-Benicia Bridge in California, and the Guaynabara Bay Crossing near Rio de Janeiro, both constructed in the 1960-1970 era. More recently drilled shafts of reinforced concrete have been widely used by European bridge builders - we shall have more to say about them a little later. Despite this past history, the use of large diameter cylinder piles has not been universally adopted and the design-construction process has not been fully optimized.

Subject Headings: Construction | Cylinders | Design | Optimization | Piles | Reinforced concrete

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