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Which outcome occurs when the shear force overcomes a reinforced concrete beam's shear capacity, especially near support columns?

A)Diagonal tension crack propagation
B)Yielding of longitudinal reinforcement
C)Buckling of compression reinforcement
D)Delamination concrete cover spalling

💡 Explanation

Diagonal tension cracking results because shear exceeds capacity promoting principle tensile stresses aligned diagonally across the beam. Therefore, cracks form diagonally rather than vertically like flexural cracks; increased reinforcement resists this.

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