SLIP MEASUREMENT AT THE STEEL –CONCRETE INTERFACE IN PUSH-OUT TESTS

The steel – concrete connection in composite construction constitutes the essential link of shear forces between the two materials. The nature of the connection is defined according to the number of connectors as well as whether their behaviour is ductile or not. A set of push-out tests was carried out according to European code provisions (EC4) for composite construction. The test specimen consisted of a rolled section HEA 140 type on which shear connectors (stud and equal angle) are welded. Two reinforced concrete floor slabs of 15 cm thickness were constructed on both sides of the rolled section. Both the experimental method used as well as the slip measurement results obtained are presented. The influence of the shear connector type on the behaviour of the connection at different loading states is presented.

• INTRODUCTION

• CALCULATION OF THE CONNECTOR RESISTANCE

• STUDIED CONNECTORS FEATURE

• STATIC TESTS OF THRUST

• USED MEASURES AND MEANS OF TESTS

• RESULTS ON THE BEHAVIOR OF CONNECTORS IN THE PUSH-OUT TEST

• COMMENTARIES ON RESULTS

• CONCLUSIONS

• REFERENCES