Shear forces in the connection of structural elements under bending

• Autorzy: Machelski C.

Identyfikatory

DOI

10.2478/sgem-2013-0031

• Języki publikacji: EN

Abstrakty

EN

A beam consisting of elements connected flexibly along their axis is discussed in the paper. An example of a structural system, constructed with the use of different materials is a composite girder consisting of a steel beam connected with a concrete slab. Full interaction of elements connected discontinuously (discretly) along the axis of the beam is a particular (theoretical) case. Taking into account functions of shear forces and stiffness k, a connection, can be classified as rigid when k > 1400 MN/m2. In this case, the results obtained from the classic beam (homogeneous) model are sufficient for design purposes. In the cases presented in the paper, the results obtained using classic model may considerably deviate from the results obtained using layered model, considered to be the accurate one. The examples of analyses given in the paper show the possibility for the use of Fourier series in calculating shear forces in the case of discrete connections. Using this solution, a compatibility of shear forces with values calculated on the basis of design solution was proved to be valid only in the case of full interaction (no shear slip). As the connection flexibility increases, the discrepancy between the functions of shear forces along the length of a girder rises. Regular arrangements of shear connectors were considered in the paper. The function of connection stiffness k(x) can have a significant influence on the distribution of shear force t(x).

Słowa kluczowe

EN

construction; bending; tangential forces

PL

konstrukcja; zginanie; siły styczne

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2013
• Tom: Vol. 35, nr 3
• Strony: 69--83
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Machelski C.

• Bridge Department, Institute of Civil Engineering, Wrocław University of Technology Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

Bibliografia

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