Stress Monitoring for the Whole Construction Process of Simply Supported to Continuous T-Beam Bridge
In order to research on the stress change and influencing factor of whole construction process of simply supported to Continuous system T-beam bridge, combined with Guizhou Bai-long bridge, the stress change is carried out the real time inspection in each construction stage, and the finite element model is established to analyse Stress changes in whole construction process. The monitoring value is more consistent with the theoretical value in each stage , monitoring dates and theoretical calculations showed that pre-stressed is the main factor of stress changes in construction process.Pre-stressed tension in negative moment region has obvious influence on the stress of middle span, the stress of top and bottom plates in wet joints will be equivalent after tendons tension in negative moment Region.
Dongye Sun, Wen-Pei Sung and Ran Chen
W. Yang et al., "Stress Monitoring for the Whole Construction Process of Simply Supported to Continuous T-Beam Bridge", Applied Mechanics and Materials, Vols. 71-78, pp. 3954-3957, 2011