Experimental Study on Temperature Field of Cylindrical Concrete Caissons Under Surrounding Temperature

CHEN Yu; LIN Xijie; LYU Yang; HUANG Xin; LI Changhui; AN Yanyong

doi:10.13204/j.gyjzG20100901

Volume 53 Issue 6

Jun. 2023

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CHEN Yu, LIN Xijie, LYU Yang, HUANG Xin, LI Changhui, AN Yanyong. Experimental Study on Temperature Field of Cylindrical Concrete Caissons Under Surrounding Temperature[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(6): 105-110,147. doi: 10.13204/j.gyjzG20100901

Citation:

CHEN Yu, LIN Xijie, LYU Yang, HUANG Xin, LI Changhui, AN Yanyong. Experimental Study on Temperature Field of Cylindrical Concrete Caissons Under Surrounding Temperature[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(6): 105-110,147. doi: 10.13204/j.gyjzG20100901

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Experimental Study on Temperature Field of Cylindrical Concrete Caissons Under Surrounding Temperature

doi: 10.13204/j.gyjzG20100901

CHEN Yu^1,2,3,
LIN Xijie^1,2,
LYU Yang^{4
,
,},
HUANG Xin^1,2,
LI Changhui^1,2,
AN Yanyong³

1. Civil Airport Engineering Research Base of China, Tianjin 300300, China;
2. School of Transportation Science and Engineering, Civil Aviation University of China, Tianjin 300300, China;
3. Tianjin Water Transport Engineering Survey and Design Institute, Tianjin 300456, China;
4. School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China

Received Date: 2020-10-09
Available Online: 2023-08-18

Abstract

Abstract

An experiment scheme for monitoring the temperature field of cylindrical concrete caisson outer wall under surrounding temperature was designed, which was built at Yingkou Port in northeast China. The 7-day continuous monitoring of concrete temperature in each season was measured in winter, spring, summer and autumn from 2018 to 2019. The finite element model of the experimental caisson was established by LS-DYNA finite element software, and the temperature field and temperature effect of the caisson concrete under surrounding temperature were analyzed. The results showed that the temperature of inside concrete caisson changed slowly under sunshine, while that of concrete outside changed rapidly. In winter, the temperature difference between the inside and outside of the concrete caisson was the largest, and the concrete tensile stress was the largest which exceeded the tensile strength. Moreover, the initial temperature of the structure had a great influence on the temperature stress of concrete in winter. When the initial temperature exceeded 10 ℃, there was a risk of cracking on the outer wall of caisson concrete. Therefore, the temperature effect of surrounding temperature on concrete caissons in northeast China should be considered in the design.
- concrete,
- caisson,
- surrounding temperature,
- sunshine,
- temperature effect,
- cracking

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References(15)

References

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