The Structural Behavior of Composite Beams With Prefabricated Reinforced Concrete Plate (Connection with Bolt) In Negative Moment Zone

Abstract

Composite beam are made up by R.C shell and structural steel, and bolts are used forshear connector. Additionally several plates are placed on the bottom face of composite beamfor each test. Therefore composite behaviour, comparison of experimental and numericalresults, shell detachment, the impact of several displacement and shapes of bolts and plates tothe structural behaviour, the crack formation are investigated.300X80X12 cm R.C shell and 300 cm HEB 120 are joined by the help of bolts andplates, and samples are tested. These samples are 3 sets (total of 6 quantities) are made ofcomposite beams.Simple span beams are set for easily rotatable at the supports. At the middle of thespan P point load is applied. Ultimate load of bearing capacity is determined when the minorcrack is occurred.Load - deformation, load - extension, moment - curvature diagrams are drawn and comparisons are made at the end of the tests. Eventually compatibility of plastic calculation method, the impact of situation of uprising shell to the bearing capacity, using of plate reducethe deformation and increase the crack load are investigated and bolts as a well shear connector is proved.