The 'torsion' in RC beams is resisted by:
Choose the correct answer
Only longitudinal bars (no stirrups needed)
Closed stirrups (links) + longitudinal bars at corners — space truss analogy; open stirrups cannot resist torsion
Pre-stressing force only
Only concrete in pure compression
Correct Answer
B. Closed stirrups (links) + longitudinal bars at corners — space truss analogy; open stirrups cannot resist torsion
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
IS 456 Cl. 41: torsion resistance by closed stirrups (links around all bars, no open stirrups for torsion) + longitudinal bars at corners. Space truss analogy: concrete diagonal compressive struts + longitudinal tension + transverse tension in ties. Torsion equivalent shear Tve = (Tu + Tu') for design; longitudinal steel Asl = Tve/(2A_oh×fy/γs). Closed stirrups critical — open stirrups cannot resist torsion.
ScoreCardAI links this solution with subject, topic and difficulty signals so your scorecard can identify weak areas after a full mock test.
Practice more Civil Engineering questions
This MCQ belongs to JE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.