Performance of a Prestressed Rigid Frame During Removal of Column 6W from I93 in Boston, Massachusetts

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by William P. Konicki, GEI Consultants Inc, Winchester, United States,
Gonzalo Castro, GEI Consultants Inc, Winchester, United States,

Document Type: Proceeding Paper

Part of: Preparing for Construction in the 21st Century:

Abstract: The first phase of the suppression of Boston's Central Artery included the Early Viaduct Construction in the Central Artery North Area. This project required that Column 6W in Bent 6 of Interstate 93 be modified for a ramp to pass through it. Modifications required the removal of the lower section of Column 6W. In order to remove the column, a new support frame was constructed, prestressed, and the load transferred from the existing structure. Components of the new and existing structure were instrumented with strain gauges and dial gauges throughout this process.

Subject Headings: Rigid frames | Columns | Prestressing | Concrete frames | Highway and road structures | Highway bridges | Concrete structures | Temporary structures | Viaducts | North America | Massachusetts | United States | Boston

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