Properties of Anchor Rods Removed from San Francisco-Oakland Bay Bridge.

摘要

In March 2013, the construction contractor for the new self-anchored suspension bridge between San Francisco and Oakland, CA, tensioned the threaded rods between the bearings/shear keys and the concrete pier cap. Within days of completion, it was discovered that one-third of the rods for the two shear keys on Pier E2 had fractured. An investigation began to determine the root cause for the fractures. The work reported herein was in support of that investigation at the request of the Federal Highway Administration California Division office. It includes data on the mechanical, chemical, and microstructural properties of two samples removed from Pier E2.