Study on temperature characteristics of multi-tower cable-stayed bridge

• Autorzy: Chengyuan Liu , Zhuowei Han , Wei Li , Lin Zhao

Identyfikatory

DOI

10.24425/ace.2023.147675

• Języki publikacji: EN

Abstrakty

EN

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 sine waves 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.

Słowa kluczowe

EN

atmospheric temperature; temperature effect; cable-stayed bridge; cable force; structure displacement

PL

temperatura atmosferyczna; wpływ temperatury; most wantowy; siła kabla; przemieszczenie konstrukcji

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2023
• Tom: Vol. 69, nr 4
• Strony: 535--548
• Opis fizyczny: Bibliogr. 19 poz., il., tab.

Twórcy

autor

Chengyuan Liu

• Shandong High-speed Group Co. Ltd., Jinan, China

• https://orcid.org/0009-0004-3133-967X

autor

Zhuowei Han

• https://orcid.org/0000-0002-6072-2887

autor

Wei Li

• Shandong Expressway Jinan West Ring Road Co. Ltd, Jinan, China

• https://orcid.org/0009-0003-1565-7339

autor

Lin Zhao

• Shandong Expressway Jinan West Ring Road Co. Ltd, Jinan, China

• https://orcid.org/0009-0008-1338-8960

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).