Mechanical properties of CFST short columns with different void ratios

• Autorzy: Song Junxi , Han Zhuowei , Wang Dawei , Lu Xiaorui

Identyfikatory

DOI

10.24425/ace.2023.146099

• Języki publikacji: EN

Abstrakty

EN

In order to study the mechanical behavior of concrete-filled steel tube(CFST) short column with different void ratios under a certain eccentricity. A fiber model of concrete-filled steel tube section with different void heights was established. Compared with existing model test data, the axial force and flexural moment strength models of concrete-filled steel tube columns with different void ratios were established. The results show that, in the case of different void ratios, the cross-section strength envelope shows an overall contraction tendency with the increase of void ratio, and each line is basically parallel. A model for calculating the coefficient of axial load degradation was established. The Han’s flexural moment strength model of the flexural component was revised, and the strength model of concrete-filled steel tube column under eccentric compression considering void ratio was established, which provides a theoretical basis and method for the safety assessment during the operation of concrete-filled steel tube arch bridges.

Słowa kluczowe

EN

concrete-filled steel tube; eccentric compression; finite element analysis; mechanical behavior; void ratio

PL

rura stalowa wypełniona betonem; ściskanie mimośrodowe; analiza elementów skończonych; zachowanie mechaniczne; stosunek; pustka powietrzna

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2023
• Tom: Vol. 69, nr 3
• Strony: 587--596
• Opis fizyczny: Bibliogr. 23 poz., il., tab.

Twórcy

autor

Song Junxi

• Second Engineering Co.Ltd of CCCC Fourth Highway Engineering Co.Ltd, Beijing, China

• https://orcid.org/0009-0008-1168-8943

autor

Han Zhuowei

• Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, China

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

autor

Wang Dawei

• Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, China

• https://orcid.org/0000-0003-0803-9391

autor

Lu Xiaorui

• Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, China

• https://orcid.org/0009-0001-3806-4603

Bibliografia

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