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← TechnologyWhich outcome during high winds increases when a structural steel I-beam lacks sufficient lateral bracing?
A)Lateral-torsional buckling✓
B)Uniform tensile loading
C)Increased fatigue resistance
D)Elastic deformation reduction
💡 Explanation
Lateral movement prompts lateral-torsional buckling because the beam's compression flange deflects sideways and twists due to insufficient bracing reducing its capacity. Therefore, buckling is the elevated risk, rather than increased tensile loading experienced under direct tension.
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