A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recent Experiences with Concrete Cylinder Piles in Florida
Two case studies are presented where 1372 mm (54 inch) diameter concrete cylinder piles where used in recent bridge projects in Florida. The primary focus of the paper is on cracking and spalling of the piles during installation and the solutions used to overcome these problems. Field and laboratory test data are also presented which demonstrates some advantages of cylinder piles. The St. George Island Bridge in Apalachicola, Florida utilized segmented spun cast post-tensioned piles. Longitudinal cracking was found in 42 piles believed to be from excessive hoop stress induced by mud and water buildup within the pile during driving, commonly referred to as "water hammer". The Trout River Bridge in Jacksonville, Florida utilized bed cast continuous prestressed piles. Severe spalling of the pile top during installation was encountered due to high localized stresses imparted by the driving hammer system. The cracking experienced on both projects proved to be a result of soil conditions and installation methods. Installation methods were modified to eliminate the cracking. These case studies should provide benefit to the engineering community in solving similar problems should they arise on other projects.
Recent Experiences with Concrete Cylinder Piles in Florida
Two case studies are presented where 1372 mm (54 inch) diameter concrete cylinder piles where used in recent bridge projects in Florida. The primary focus of the paper is on cracking and spalling of the piles during installation and the solutions used to overcome these problems. Field and laboratory test data are also presented which demonstrates some advantages of cylinder piles. The St. George Island Bridge in Apalachicola, Florida utilized segmented spun cast post-tensioned piles. Longitudinal cracking was found in 42 piles believed to be from excessive hoop stress induced by mud and water buildup within the pile during driving, commonly referred to as "water hammer". The Trout River Bridge in Jacksonville, Florida utilized bed cast continuous prestressed piles. Severe spalling of the pile top during installation was encountered due to high localized stresses imparted by the driving hammer system. The cracking experienced on both projects proved to be a result of soil conditions and installation methods. Installation methods were modified to eliminate the cracking. These case studies should provide benefit to the engineering community in solving similar problems should they arise on other projects.
Recent Experiences with Concrete Cylinder Piles in Florida
Kemp, John J. (author) / Muchard, Mike (author)
Geo-Denver 2007 ; 2007 ; Denver, Colorado, United States
2007-10-14
Conference paper
Electronic Resource
English
Piles , Cylinders , Drilled shafts , Florida , Bridges , Concrete piles , Deep foundations
Recent Experiences with Concrete Cylinder Piles in Florida
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