Behavior of steel-concrete partially composite beams with channel type shear connectors

2014-06-01
This paper summarizes the findings of an experimental study investigating the flexural behavior of partially composite beams incorporating channel type shear connectors. Results from monotonic load testing of four full-scale steel-concrete composite beams and a steel beam are presented. The main effort focused on identifying the variation of strength and stiffness properties of beams with various degrees of partial composite action. Behavior of channel shear connectors in the composite beam specimens is related to those previously obtained from push-out tests of similar connectors. Finally, recommendations of the related AISC Specification on the strength and stiffness of composite beams are used for the assessment of the influence of the degree of partial composite action on flexural behavior. The experimental results revealed that even for beams with relatively low degree of partial composite action, major improvement on moment capacity and stiffness was obtained as compared to the steel specimen. The measured moment capacity of both the partially composite and fully composite beams agreed acceptably with the calculated capacities. The effective moment of inertia and the lower bound moment of inertia as specified by the AISC Specification were observed to overestimate the measured flexural stiffness of beams for all degrees of partial composite action investigated.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH

Suggestions

An experimental study on channel type shear connectors
Baran, Eray; Topkaya, Cem (2012-07-01)
This paper describes an experimental study on European channel shear connectors. While shear studs are widely used in steel-concrete composite elements, the channel connectors are also gaining popularity due to their certain advantages. The channel connectors do not require special equipment and standard welding procedures are adequate for attachment purposes. In addition, this type of connector offers higher amounts of shear resistance due to its high contact area with surrounding concrete. Although first ...
Numerical investigation of stiffened composite panel into buckling and post buckling under combined loading
Akay, Erkan; Yaman, Yavuz; Department of Aerospace Engineering (2015)
This thesis presents the investigation of buckling and post buckling behaviour of stiffened thin walled laminated composite aerospace structures subjected to combined in-plane axial and shear loadings. Due to the fact that the state of stress developing especially in the post-buckling stage is quite complicated under the combined loading, the necessary computational model is usually based on Finite Element Modelling (FEM). In this study, after verifying the FEM methodology and completing the sensitivity stu...
Use of split-disk tests for the process parameters of filament wound epoxy composite tubes
Kaynak, Cevdet; PARNAS, LEVENT; ŞENEL, FİKRET (2005-08-01)
The aim of this study was to investigate processing parameters of continuous fiber reinforced epoxy composite tubes produced by the filament winding technique. For this purpose, split-disk tests (according to ASTM D-2290 standard) were performed for the specimens produced with two different epoxy resin systems, five different fiber materials and five different winding angles. By determining the hoop tensile strength and modulus of these specimens, the effects of three filament-winding processing parameters;...
Seismic Retrofit of Deficient RC Structures with Internal Steel Frames
ÖZÇELİK, RAMAZAN; Akpinar, Ugur; Binici, Barış (2011-12-01)
This paper describes an experimental study on internal steel frames (ISFs) to retrofit seismically deficient reinforced concrete (RC) frames. One reference and six strengthened frame specimens were tested under constant gravity load and cyclic lateral displacement excursions. Installation of the ISF with and without anchors to the RC frame was examined. Test results showed that the snug tight ISF installed inside an RC frame may suffice to realize the benefit of implementing ISFs. If the horizontal shear st...
Experimental and numerical study of spring-in angle in corner shaped composite parts
Çiçek, Kerem Furkan; Erdal Erdoğmuş, Merve; Kayran, Altan; Department of Mechanical Engineering (2014)
In this study, spring-in problem encountered in corner shaped composite parts which are made of Hexcel’s AS4/8552 unidirectional (UD) prepregs is investigated. For that purpose, a simple two dimensional (2-D) geometrical model available in the literature is implemented and spring-in is calculated according to this model. Then using autoclave process, U-shaped composite parts are manufactured and spring-in measurements are performed on these parts. Finally, a three dimensional (3-D) numerical model in ABAQUS...
Citation Formats
E. Baran and C. Topkaya, “Behavior of steel-concrete partially composite beams with channel type shear connectors,” JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, pp. 69–78, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46469.