Journal article
Field Monitoring of Cross Frames in Composite Steel I-Girder Bridges
Journal of bridge engineering, v 29(8), 04024049
01 Aug 2024
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Many of the current fatigue design specifications for cross frames, especially those in composite steel bridge systems, have primarily been based on computational studies and component-level laboratory experiments. To fully understand the behavior of cross frames when subjected to in-service truck traffic and to critically evaluate legacy design provisions, in-service field monitoring of cross frames in various composite systems is important. Therefore, select cross frames in three bridges in the greater Houston area were instrumented with strain gage sensors-one straight bridge with normal supports, one straight bridge with skewed supports, and one horizontally curved bridge with radial supports. For each bridge, rainflow counting techniques and other postprocessing procedures were implemented for a monitoring period of one month to compare the measured cross-frame response. Among other key observations, the measured data demonstrated that load-induced force effects in the cross frames of the skewed bridge system exceeded those in the bridges with normal or radial supports and that cross-frame response was highly sensitive to the longitudinal and transverse truck positions. In all cases, though, the measured damage accumulated on all instrumented cross-frame members during their respective monitoring periods, if extrapolated to the entire service life, would likely not cause significant load-induced cracking in the critical welded gusset-to-member connections.
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Details
- Title
- Field Monitoring of Cross Frames in Composite Steel I-Girder Bridges
- Creators
- Matthew C. Reichenbach - Drexel UniversityJoshua B. White - Wiss Janney Elstner AssociatesSunghyun Park - The University of Texas at AustinTodd A. Helwig - The University of Texas at AustinMichael D. Engelhardt - Univ Texas Austin, Transportat Engn, 10100 Burnet Rd, Austin, TX 78758 USARobert J. Connor - Purdue University West LafayetteMichael A. Grubb - MA Grubb & Assoc LLC, Wexford, PA 15090 USA
- Publication Details
- Journal of bridge engineering, v 29(8), 04024049
- Publisher
- Asce-Amer Soc Civil Engineers
- Number of pages
- 14
- Grant note
- 12-113 / National Cooperative Highway Research Program (NCHRP) Transportation Research Board Texas Department of Transportation TxDOT
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:001246784300010
- Scopus ID
- 2-s2.0-85193605077
- Other Identifier
- 991021959049704721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Engineering, Civil