Fatigue bearing strength of connection with flexible connectors.

Kazimierz Furtak

Abstrakt

The paper presents an analysis of the effect of load variations on the bearing strength of connection in steel–concrete elements with flexible connectors in the form of bolts. Data relating to the residual stresses from concrete slab shrinkage have been included in the analysis. The results of the author’s experiments on the effect of variable loads on the bearing strength of the connection have been discussed following the author’s experimental studies. Following the analysis of the results, it can be stated that the bearing strength of a connection with flexible connectors is significantly affected by the rigidity of the steel girder and slab (coefficient d) together with the parameters of load cycles (k, R) and the value of concrete shrinkage strain.

Słowa kluczowe: fatigue bearing strength, flexible connectors, variable loads, load cycles, shrinkage strain
References

PN-EN1994-2: 2010: Eurocode 4 – Design of composite steel and concrete structures – Part 2: General rules and rules for Bridges.

Furtak K., Mosty zespolone (Composite bridges), PWN, Warszawa–Kraków 1999.

Furtak K., Wpływ skurczu betonu i obciążeń zmiennych na nośność zespolenia w elementach typu stal – beton (Effect of concrete shrinkage and changing loads on connection bearing strength in steel–concrete elements), Inżynieria i Budownictwo, 1–2/2009.

Knowles P.R., Composite Steel and Concrete Construction, Butterworth and Co., Ltd. London 1973.

Kuczma M., Kuczma B., Steel-concrete composite beams with elasto-plastic connection [In:] Mathematical methods in continuum mechanics, Technical University of Lodz Press. Lodz 2011.

Łącki J., Nośność zespolenia żelbetowej płyty z dźwigarem stalowym (Load capacity of connection reinforced concrete slabs with steel girder. PhD thesis), praca doktorska, Kraków 2004.

Madaj A., Wytrzymałość zmęczeniowa łączników w stalowo-betonowych belkach zespolonych (Fatigue bearing strength of connectors in steel-concrete composite beams), Prace IBDiM, nr 1–2/1997, Warszawa.

Pechar J., Bureš J., Schindler A., Kovovė mosty, SNTL, ALFA, Praha 1990.

Roik K., Hannswille G., Zur Zur Dauerfestigkeit von Kopfbolzendübeln bei Verbundträgern, Der Stahlbau, 10/1983.

Šimalová M., Bujňák J., On determination of shear connection behavior by push test, Transcom Conference University of Žilina, Žilina 1997.