Concrete is Brittle It fails (cracks) at the angle of principal tension.

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Presentation transcript:

Concrete is Brittle It fails (cracks) at the angle of principal tension

Principal Tension is Horizontal Concrete is Brittle It fails (cracks) at the angle of principal tension High Moment, No Shear Principal Tension is Horizontal Crack is vertical

Principal Tension is Horizontal Concrete is Brittle It fails (cracks) at the angle of principal tension Low Moment, High Shear High Moment, No Shear Principal Tension is Horizontal Crack is vertical

Principal Tension is Horizontal Concrete is Brittle It fails (cracks) at the angle of principal tension Neutral Axis. No Bending Stress Only Shear Stress Crack at 45 degrees Low Moment, High Shear High Moment, No Shear Principal Tension is Horizontal Crack is vertical

Concrete is Brittle It fails (cracks) at the angle of principal tension

Concrete is Brittle It fails (cracks) at the angle of principal tension