Prediction and Evaluation of a Laterally Loaded Pile Group at Roosevelt Bridge

摘要

The objectives of the research were to evaluate computer software, particularlyFLPIER, develop p-y multipliers for group action, and evaluate insitu test methods for deriving p-y curves. Accordingly, an isolated single pile and a large scale test group of 16 prestressed concrete piles were subjected to a static lateral loading using a fixed-headed production group for reaction. Ten piles of the test group, six piles for the reaction group, and the single pile were instrumented with strain gages and inclinometers. The piles were 30-inches square, and approximately 54 feet long. The foundation consists of sand overlying a partially cemented sand at Roosevelt Bridge replacement, Stuart, FL. The single pile was subjected to 72 kips, while the pile groups were loaded to about 1000 kips.