兵庫県南部地震で被害を受けた既製RC杭の被災状況と構造性能

概要

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Pre-cast reinforced concrete piles used in the foundation of the building that had been damaged by the Hyogoken-nanbu Earthquake were examined. The piles were excavated from the site, and then tested under bending and/or shear loads to evaluate their structural perfomance. The piles had many cracks and damage observed when they were excavated. Some of the cracks might be attribute to the shock wave when the piles were placed by driving hummer, but some seemed to be caused by the earthquake. In this study, structural behavior of a damaged pile is experimentally examined. A static analysis of a pile is also carried considering geologic layer of the site. Then, the cause of the cracks and damage observed is discussed through the static analysis as well as the experimental results so obtained.
2001-03-20