Remote monitoring of structural stability using electronic clinometers

摘要

Caltrans Bridge No. 11-29 spans Stony Creek in Glenn County, California. The structure carries State Route 32 traffic between Chico and Orland. Stony Creek itself experiences intermittent, erratic, high flows. Historically, the bridge has expeienced, and remains susceptible to, significant scour. The Infrastructure TSechnology Institute (ITI) of Northwestern University, under contract to the California Department of Transportation (CalTrans), on October 12, 1998 installed electronic tiltmenters and a remote monitoring system on the bridge to allow continuous monitoring of the structure's stability. This paper describes the installation and operation of the remote monitoring system and the results of the data analysis to-date.