RESEARCH ARTICLE
The Research of Space Temperature Distribution in Solid Tower of Extradosed Cable-Stayed Bridge
Yanwei Niu*, 1, 2, Yu Zhao1, Xiaoxiao Qu1, Qi Yu3, Pingming Huang1
Article Information
Identifiers and Pagination:
Year: 2014Volume: 8
First Page: 488
Last Page: 494
Publisher ID: TOBCTJ-8-488
DOI: 10.2174/1874836801408010488
Article History:
Electronic publication date: 31/12/2014Collection year: 2014
open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
Abstract
Based on space temperature field test in solid tower of extradosed cable-stayed bridge, the method to calculate the space temperature field in solid concrete bridge tower is put forward systematically. By defining a series of meteorological parameters and concrete thermal parameters, the bridge tower temperature distribution is gotten. Compared with the experimental data, error is found within 21.38%, which shows that the temperature field algorithm is reasonable. Under the steady temperature field state, bridge tower section temperature distribution is analyzed within 24 hours, the result shows: maximum negative temperature difference appears on sunrise. Maximum negative temperature difference in transverse and longitudinal direction of bridge is 5.1 °C and 4.2 °C respectively. The most-positive temperature difference in transverse direction appears at 15 PM. The temperature difference value is about 20°C. This research simulates the temperature distribution in transverse and longitudinal directions of the bridge when maximum negative temperature difference appears in solid concrete bridge towers and provides the curve equation.