ABSTRACT
The present paper deals with the behaviour of bolted steel and steel-concrete beam-to-column joints with endplate connections under seismic loading.
While partial-strength all-steel joints have been part of recent scientific works, the behaviour of the common composite joints for seismic loading remains unclear. Currently, in the engineering practice construction criteria according to (CEN EN 1998-1, 2004) are applied taking care that the contribution of the concrete slab is neglected, thus the joint is designed as an all-steel one.
In a recently completed experimental campaign 3 all-steel and 9 steel-concrete composite joints with 5 parameters varied were tested under seismic loading. Joints of common configuration were chosen and slightly modified by applying on them the basic seismic design principles.
Based on the experimental results composite joints can be an important and universal source of energy dissipation. They can find application in different structural systems and areas of various seismicity levels.
