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The strength of stud shear connectors at low temperatures
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1983
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Structural IntegrityEngineeringMechanical BehaviorStrength PropertyMechanical EngineeringConcrete TechnologyReinforced ConcreteCivil EngineeringStud Shear ConnectorsStructural PerformanceShear StrengthPushout TestsConstruction EngineeringMechanics Of MaterialsStructural Engineering
The effect of temperature on the ultimate strength of shear connections consisting of headed stud shear connectors embedded in a normal weight concrete slab is examined by means of pushout tests conducted at temperatures of +20, −10, and −20 °C. The strength of the shear connection with 13 mm diameter studs was found to be lower at −20 °C than at room temperature, whereas the strength of the shear connection with 19 mm diameter studs was found to be greater at −20 °C than at room temperature. This is explained in terms of increased concrete strength and reduced stud strength with decreased temperature, causing a change in the mode of failure. Keywords: composite construction, shear strength, shear connection, stud shear connectors, low temperature pushout tests.