The Investigation on flexural performance of prestressed concrete-encased high strength steel beams

• Autorzy: Wang Jun , Jiao Yurong , Cui Menglin , Yang Wendong , Fang Xueqi , Yan Jun

Identyfikatory

DOI

10.24425/ace.2024.148919

• Języki publikacji: EN

Abstrakty

EN

This paper reports an experimental on the flexural performance of prestressed concrete-encased high-strength steel beams (PCEHSSBs). To study the applicability of high-strength steel (HSS) in prestressed concrete-encased steel beams (PCESBs), one simply supported prestressed concrete-encased ordinary strength steel beam (PCEOSSB) and eight simply supported PCEHSSBs were tested under a four-point bending load. The influence of steel strength grade, I-steel ratio, reinforcement ratio and stirrup ratio on the flexural performance of such members was investigated. The test results show that increasing the I-steel grade and I-steel ratio can significantly improve the bearing capacity of PCESB. Increasing the compressive reinforcement ratio of PCEHSSB can effectively improve its bearing capacity and ductility properties, making full use of the performance of HSS in composite beams. Increasing the hoop ratio has a small improvement on the load capacity of the test beams; setting up shear connectors can improve the ductile properties of the specimens although it does not lead to a significant increase in the load capacity of the combined beams. Then, combined with the test data, the comprehensive reinforcement index considering the location of reinforcement was proposed to evaluate the crack resistance of specimens. The relationship between the comprehensive reinforcement index and the crack resistance of specimens was given.

Słowa kluczowe

EN

high-strength steel; prestressed concrete-encased steel beam; flexural bearing capacity; crack resistance

PL

stal o wysokiej wytrzymałości; belka stalowa obudowana betonem sprężonym; nośność na zginanie; odporność na pękanie

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2024
• Tom: Vol. 70, nr 1
• Strony: 405--420
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Wang Jun

• Northeast Forestry University, Faculty of Civil Engineering, Harbin 150000,China

• https://orcid.org/0009-0003-2312-6108

autor

Jiao Yurong

• Northeast Forestry University, Faculty of Civil Engineering, Harbin 150000, China

• https://orcid.org/0009-0000-2809-3059

autor

Cui Menglin

• Northeast Forestry University, Faculty of Civil Engineering, Harbin 150000,China

• https://orcid.org/0000-0001-9524-630X

autor

Yang Wendong

• Northeast Forestry University, Faculty of Civil Engineering, Harbin 150000,China

• https://orcid.org/0009-0004-4117-4047

autor

Fang Xueqi

• Northeast Forestry University, Faculty of Civil Engineering, Harbin 150000, China

• https://orcid.org/0009-0004-4632-4972

autor

Yan Jun

• Northeast Forestry University, Faculty of Civil Engineering, Harbin 150000, China

• https://orcid.org/0009-0008-2720-3461

Bibliografia

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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).