Instrumentation and Monitoring of a Distressed Multistory Underground Parking Garage
Publication: Journal of Performance of Constructed Facilities
Volume 15, Issue 3
Abstract
An instrumentation program was undertaken to monitor the movements of a multistory underground parking structure exhibiting signs of large deformation and severe structural distress including the failure of a column. The structure is a four-story reinforced concrete building with a rectangular footprint measuring 52.42 × 71.32 m. The building's structural system consists of reinforced concrete waffle slabs resting on rectangular reinforced concrete columns. The instrumentation plan included the installation of eight vibrating-wire displacement transducers to monitor displacements and 24 electrolytic tiltmeters to monitor inclinations. The instrument data was recorded hourly and read via a remote site modem connected to a datalogger. This paper describes the instrumentation program and the procedures associated with the installation of the instruments. A summary and a brief interpretation of typical measurements are presented, along with a discussion of lessons learned and recommendations for similar projects.
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 15 • Issue 3 • August 2001
Pages: 115 - 123
History
Received: Nov 10, 2000
Published online: Aug 1, 2001
Published in print: Aug 2001
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