[1] Qian Zhendong, Zhang Shaojin, Min Yitong, Zhao Xinyuan, et al. Design and evaluation of UHPP steel bridge deck pavement for high-temperature and rainy regions [J]. Journal of Southeast University (English Edition), 2024, 40 (3): 257-265. [doi:10.3969/j.issn.1003-7985.2024.03.005]

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Design and evaluation of UHPP steel bridge deck pavement for high-temperature and rainy regions()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

40

Issue:

2024 3

Page:

257-265

Research Field:

Traffic and Transportation Engineering

Publishing date:

2024-09-20

Info

Title:

Design and evaluation of UHPP steel bridge deck pavement for high-temperature and rainy regions

Author(s):

Qian Zhendong¹;  Zhang Shaojin²;  Min Yitong¹;  Zhao Xinyuan¹

¹Intelligent Transportation System Research Center, Southeast University, Nanjing 211189, China
²College of Architectural Science and Engineering, Yangzhou University, Yangzhou 510000, China

Keywords:

steel bridge deck pavement(SBDP);  high-temperature environment;  rainy weather;  rigid bottom and flexible top;  temperature field;  composite structure

PACS:

U419.6

DOI:

10.3969/j.issn.1003-7985.2024.03.005

Abstract:

To enhance the serviceability of steel bridge deck pavement(SBDP)in high-temperature and rainy regions, a concept of rigid bottom and flexible top was summarized using engineering practices, which led to the proposal of a three-layer ultra-high-performance pavement(UHPP). The high-temperature rutting resistance and wet-weather skid resistance of UHPP were evaluated through composite structure tests. The internal temperature distribution within the pavement under typical high-temperature conditions was analyzed using a temperature field model. Additionally, a temperature-stress coupling model was employed to investigate the key load positions and stress response characteristics of the UHPP. The results indicate that compared with the traditional guss asphalt + stone mastic asphalt structure, the dynamic stability of the UHPP composite structure can be improved by up to 20.4%. Even under cyclic loading, UHPP still exhibits superior surface skid resistance compared to two traditional SBDPs. The thickness composition of UHPP significantly impacts its rutting resistance and skid resistance. UHPP exhibits relatively low tensile stress but higher shear stress levels, with the highest shear stress occurring between the UHPP and the steel plate. This suggests that the potential risk of damage for UHPP primarily lies within the interlayer of the pavement. Based on engineering examples, introducing interlayer gravel and optimizing the amount of bonding layer are advised to ensure that UHPP possesses sufficient interlayer shear resistance.

References:

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Memo

Memo:

Biography: Qian Zhendong(1969—), female, doctor, professor, qianzd@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51878167), the Postgraduate Research and Practice Innovation Program of Jiangsu Province(No. KYCX23_0300).
Citation: Qian Zhendong, Zhang Shaojin, Min Yitong, et al. Design and evaluation of UHPP steel bridge deck pavement for high-temperature and rainy regions[J].Journal of Southeast University(English Edition), 2024, 40(3):257-265.DOI:10.3969/j.issn.1003-7985.2024.03.005.

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