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/lp/sage/analysis-of-thermal-behavior-on-concrete-box-girder-arch-bridges-under-BgZ6ZolClM
- Publisher
- SAGE
- Copyright
- © The Author(s) 2016
- ISSN
- 1369-4332
- eISSN
- 2048-4011
- DOI
- 10.1177/1369433216630829
- Publisher site
- See Article on Publisher Site
Abstract
The two-dimensional finite element method can be used to calculate the thermal field distribution of prestressed concrete bridge girders. However, this method is not appropriate for the concrete box-girder arch bridges, because they have different azimuth and dip angles at the top and bottom flanges along arch axis. Thus, an experimental and analytical study was conducted on a concrete box-girder arch bridge located in Guizhou, China, to investigate the thermal behavior under convection and the solar radiations. To determine the vertical temperature gradients, a two-dimensional plane finite element model was used to calculate the thermal field based on meteorological parameter methods. In addition, the three-dimensional beam finite element model was proposed to study the thermal stress and displacement of arch bridges using the vertical temperature gradients. Finally, the thermal behavior of the concrete box-girder arch bridges determined by the two-dimensional plane and three-dimensional beam finite element model was verified by three-dimensional solid finite element model.
Journal
Advances in Structural Engineering – SAGE
Published: Jul 1, 2016