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Seismic Testing of Precast Segmental Bridges: Phase III: Bridge System Test - Printable Version

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Seismic Testing of Precast Segmental Bridges: Phase III: Bridge System Test - mahyarov - 10-27-2012

Seismic Analysis of Retaining Walls, Buried Structures, Embankments, and Integral Abutments

Author: Burnell, Kelly P Megally, Sami Hanna Restrepo, Jose I University of California, San Diego Seible, Frieder University of California, San Diego | Size: 7.28 MB | Format: PDF | Quality: Original preprint | Publisher: University of California, San Diego | Year: 2005 | pages: 112

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This report presents the primary findings of a test that examined the seismic behavior of a precast, post-tensioned, segmental bridge superstructure with a cast-in-place, hollow, rectangular column. The test was completed in two stages. In the first stage, the prestressing level was designed to avoid any joint openings. The second stage involved removing some of the tendons in order to enable inelastic deformations of the joints in the superstructure and to impose a more severe loading condition on the joints nearest the column. This second stage of the test was conducted to serve as an introductory examination of the performance of a bridge when damage is not limited to the column and inelastic motion is allowed in the superstructure. The primary objectives of the test were to investigate the response of the opening of the superstructure joints, column-superstructure interaction, plastic hinge formation in the column, and the anticipated system failure mechanism. Detailed instrumentation was used in both the column as well as the joints of the superstructure in order to record the damage and performance of the bridge components.

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