Fracture simulation of a demountable steel-concrete bolted connector in push-out tests

Many bolted connectors were proposed for use in steel-concrete composite structures over the past few decades. This is because using could make assembly and disassembly of more convenient reusing dismantled structural components also improve sustainability. Lots static fatigue experimental tests on conducted but detailed finite element simulations including fracture rarely reported. paper presents a series demountable connector push-out tests, which was reported by authors this before. Damage models bolt concrete materials are incorporated to better understand behaviour failure mode tests. Direct tension bolts simulated calibrate stress-strain relationship material assumed pure shear modelled validate criterion used simulations. Results modelling indicate that friction force at interface accounts part resistance conducted. The load-slip curves can be approximately predicted incorporating damage considering an appropriate coefficient. effects model, clearance hole, pretension short performance discussed last.