Resistance of headed studs subjected to fatigue loading

Hanswille, Gerhard; Porsch, Markus; Üstündag, Cenk

doi:10.1016/j.jcsr.2006.06.035

Cited by 108 publications

(36 citation statements)

References 5 publications

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“…16). All concrete parameters except the resistance are deduced from Eurocode 2 [22]. In tension an elastic linear law is assumed up to half-experimental tensile strength, then a linear softening branch models the tension stiffening effect.…”

Section: Presentation Of the Numerical Fe Modelmentioning

confidence: 99%

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New beam-to-beam joint with concrete embedding for composite bridges

Somja

Kaing

Lachal

2012

Journal of Constructional Steel Research

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This paper deals with a new type of beam-to-beam joint used to connect continuously composite beams in small and medium span bridges. This new joint is realized by encasing totally the two composite beam ends into a massive composite reinforced concrete block. A direct contact between the ends of the bottom flanges of the steel girders over the support ensures the transfer of the compression forces. A half-scale joint specimen has been designed and fabricated. The specimen was first tested at the Structural Laboratory of INSA-Rennes under fatigue loading. Next, the load was monotonically increased up to the specimen failure. The main results of this experimental study are firstly presented. To allow an accurate interpretation of the test results and get a better insight into the joint behaviour, a numerical F.E. model has been developed. The numerical results are presented and compared against experimental ones. Besides, a parametric study has been carried out in order to investigate the influence of key parameters governing the joint behaviour. The influence of the behaviour of this type of joint on the global analysis of a continuous composite beam has then been studied. Finally, a worked example of a two-span continuous railway bridge is presented and effects of intermediate beam-to-beam joint characteristics on the bridge behaviour are discussed.

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Section: Presentation Of the Numerical Fe Modelmentioning

confidence: 99%

“…Force-slip relationship (P-s) of studs has been chosen according to recent experiments at Wuppertal University [22] :…”

Section: Presentation Of the Numerical Fe Modelmentioning

confidence: 99%

New beam-to-beam joint with concrete embedding for composite bridges

Somja

Kaing

Lachal

2012

Journal of Constructional Steel Research

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“…The extensive application of steel-concrete composite beams has been observed on both fields of building and bridge construction. Due to the simple fabrication and standard based design method [1] the headed studs are the most common shear connection type, however more researches highlighted the drawback of their static and cyclic behaviours [2], [3]. Intensive research has been carried out on innovative shear connection types to find the force transfer mechanism, the resistance and deformation capacity under static and cyclic loading with the aim to provide calculation methods to design.…”

Section: Introductionmentioning

confidence: 99%

08.33: Full scale test on steel‐concrete composite beams: Investigation of innovative shear connectors

et al. 2017

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Full scale tests on eight steel-concrete composite beams have been executed in the Structural Laboratory of the Department of Structural Engineering, Budapest University of Technology and Economics in Hungary. The aim of the test series was to investigate the structural behavior of the new and innovative shear connections applied at the steel-concrete interface. During the test the beams have been simple supported and tested under three point bending until the final failure following the Eurocode recommended testing procedure. The composite beams are built up of IPE 400 steel beams and 20x50 cm RC slab. The length of the beams was 6 m for each. The general layout and material grade of each beams are identical, however each has special shear connection: headed studs (as reference), perfobond plates, Y-shaped perfobond, dove tale perfobond plates, trapezoidal perfobond plates. These connection types have been already tested by push-out test in the same Laboratory in the previous years. The main goal of the full scale tests was to investigate the force-slip relationship for each connection types and verify the results of the push-out tests. To determine the structural behavior of the shear connection both tests have been evaluated: the shear resistance of the connection is determined by the push-out test and the initial stiffness by the beam tests. Further aims are to develop a test based calculation model for the design of the new innovative shear connections, and to build and verify and advanced FE model to perform virtual test on further connection configurations.

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“…Most of the data on connectors have been obtained from various types of push-out test. Since the 1960s, various researchers have conducted a great number of cyclic push-out tests to determine the fatigue life of shear connectors (Akao, Kurita, & Hiragi, 1982;Feldmann, Gesella, & Leffer, 2006;Feldmann, Hechler, Hegger, & Rauscher, 2008;Hanswille, Porsch, & Ustundag, 2007;Johnson, 2000;Leea, Shimb, & Changc, 2005;Nakajima et al, 2003;Oehlers, 1989;Slutter & Driscoll, 1965;Veljkovic & Johansson, 2006) Although safety factor in initial design may delay the occurrence of fatigue problems, the priori negligence of corrosion pits in structural integrity analysis may lead to significant overestimation of the damage tolerance ability of existing steel structures (Petroyiannis, Kermanidis, & Akid, 2005). There is lack of protection between the concrete slab and steel girder interface and also makes corrosion difficult to be detected.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of Corroded Stud Shear Connectors under Fatigue Loading

Ju¹,

Jiang²

2016

Proceedings of the 5th International Conference on the Durability of Concrete Structures

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Experimental investigation was conducted on corroded composite push-out specimens to study the behavior of shear studs subjected to fatigue loading. A total of eight standard EC4 push-out specimens were tested. The expected corrosion rate of test specimens ranged from 0 to 50%. The main purpose of these tests was to determine the fatigue life and the reduction effect caused by the corrosion on the fatigue life. The effect of corrosion on the fatigue crack, load-slip curves, and failure modes was also studied. In addition, the test results were compared with current Eurocode design predictions, which is only for specimen without corrosion. It is shown that the current Eurocode design predictions are quite conservative for the test specimens in this study. Design equations were also proposed for fatigue life of corroded composite push-out specimens.

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Resistance of headed studs subjected to fatigue loading

Cited by 108 publications

References 5 publications

New beam-to-beam joint with concrete embedding for composite bridges

New beam-to-beam joint with concrete embedding for composite bridges

08.33: Full scale test on steel‐concrete composite beams: Investigation of innovative shear connectors

Behaviour of Corroded Stud Shear Connectors under Fatigue Loading

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