Advances in Civil Engineering / 2020 / Article / Tab 3

Research Article

Progressive Collapse of RC Box Girder Bridges due to Seismic Actions

Table 3

Properties of the bridge materials.

ParameterConcreteSteel reinforcement and platesBearing interfaceUnit

Compressive strength4e063.6e075.51e + 07kg/m2
Tensile strength4e053.6e07kg/m2
Young’s modulus2.213e092.0389e + 092.0389e + 09kg/m2
Shear modulus984297e038.1556e + 09203943kg/m2
Specific weight250078407840kg/m3
Separation strain0.20.121
Friction coefficient0.80.80.6
Ultimate strength/tensile stress1.4444
Normal contact stiffness factor0.00010.00010.0001
Shear contact stiffness factor1.00e − 051.00e − 051.00e − 05
Contact spring unloading stiffness factor222
Postyield stiffness ratio0.01

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