Title:
Instrumentation of the Grand-Mere Bridge During Strengthening
Author(s):
B. Massicotte and A. Picard
Publication:
Symposium Paper
Volume:
143
Issue:
Appears on pages(s):
59-80
Keywords:
bridges (structures); field tests; girders; instruments; prestressed concrete; segmental construction; strengthening; Construction
DOI:
10.14359/4608
Date:
5/1/1994
Abstract:
Describes details of an extensive monitoring program carried out during the strengthening of the Grand Mere Bridge, a cast-in-place post-tensioned segmental box girder structure built in 1977. The testing program comprised various measurements taken before, during, and after the prestressing application. Electrical strain gages, mechanical strain gages, vibrating wire gages, and thermocouples were among the measuring instruments used. A bridge testing data acquisition system in a vehicle and an autonomous data acquisition system were used, together with manual reading devices. The field measurement program was carried out during strengthening. Some instruments used allow the monitoring of the bridge over a long-term period.