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Study on temperature characteristics of multi-tower cable-stayed bridge
- Source :
- Archives of Civil Engineering, Vol vol. 69, Iss No 4 (2023)
- Publication Year :
- 2023
- Publisher :
- Polish Academy of Sciences, 2023.
-
Abstract
- Temperature effects have a great influence on the mechanical behavior of cable-stayed bridges, especially for long-span bridges, which have significant time-varying and spatial effects. In this paper, the temperature characteristics of multi-tower cable-stayed bridge are obtained by data acquisition with wireless acquisition module. The test results show that: the daily temperature-time curves of atmospheric temperature and structural temperature are similar to sinewaves with obvious peaks and troughs; structure temperature and atmospheric temperature have obvious hysteresis; longitudinal displacement, transverse displacement and vertical of mid-span beam are negatively correlated with atmospheric temperature; the temperature distribution of the cable tower is not uniform, and the maximum temperature difference of the section is 23.7°C considering 98% of the upper limit value; the longitudinal, transverse and vertical displacement of cable tower and the cable force is negatively correlated with atmospheric temperature, and the relationship between cable force and atmospheric temperature is a cubic function rather than linear function.
Details
- Language :
- English
- ISSN :
- 12302945 and 23003103
- Volume :
- . 69
- Issue :
- 4
- Database :
- Directory of Open Access Journals
- Journal :
- Archives of Civil Engineering
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.6518709830a948a78e73c54a3305ccd7
- Document Type :
- article
- Full Text :
- https://doi.org/10.24425/ace.2023.147675