Atlas Structural 1 Flashcards
Supported on two sides only, load action in one direction
One-way slab
275 MPa
G40, 12 mm
415 MPa
G60, more than 12 mm
The concrete is assumed to carry a constant shear force Vc, and the stirrups need only be designed for the shear force Vs in excess of that carried by the concrete.
Vn = Vc + Vs
Two main steel treatments
1) Quenching - rapid cooling
2) Tempering - reheating
The property of steel defined as the unit tensile stress at which the stress-strain curve exhibits a well-defined increase strain (deformation) without an increase in strain
Yield stress, Fy
The property of steel which is the largest unit stress the materials achieve in a tension test
Tensile strength, Fu
The slope of the initial straight-line proportion of the stress-strain diagram
Modulus of elasticity
The ability of the material to undergo large inelastic deformation without failure
Ductility
The ability of the material to absorb energy and is characterized by the area under a stress-strain curve
Toughness
The ability of steel to be welded without changing its mechanical properties
Weldability
The ratio of the transverse strain to the longitudinal strain
Poisson’s ratio
The ratio of the shearing stress to shearing strain during elastic behavior. It is often called the modulus of rigidity.
Shear modulus
