The fatigue behaviour of the shear connection in the hogging region of steel and concrete composite continuous beams under realistic loading

Title: The fatigue behaviour of the shear connection in the hogging region of steel and concrete composite continuous beams under realistic loading
Author(s): H. Bode, A? Leffer
Paper category : conference
Book title: International Symposium on Connections between Steel and Concrete
Editor(s): R. Eligehausen
Print-ISBN: 2-912143-25-X
e-ISBN: 2351580346
Publisher: RILEM Publications SARL
Publication year: 2001
Pages: 1141 - 1151
Total Pages: 11
Nb references: 11
Language: English

Abstract: At Kaiserslautern University four large-scale tests on two span continuous composite beams have been performed [1,2]. The tests were aimed at investigating the fatigue behaviour of the shear connection in the hogging region under approximately realistic conditions. Therefore a new experimental simulation of the crossing of vehicles over bridges has been developed using two alternating hydraulic cylinders. It is shown that the studs’ flexibility and the cyclic cracking of the concrete directly adjacent to the stud influence the fatigue behaviour significantly. Both cannot be taken into account using the basis of design provided by the European standardization [3] or by the new national codes [4]. It turned out that some parts of the structure do not show elastic behaviour under service loads. Considerable shear force redistribution takes place along the connection and it seems probable that the fatigue phenomenon cannot be described in a sufficiently exact manner with the classical load-life fatigue approach.

Online publication: 2009-12-31
Publication type : full_text
Public price (Euros): 0.00