A 'corbel' in RC is designed for shear-to-depth ratio a/d ≤ 1 using:
Choose the correct answer
Standard beam flexure (M/Z) with no shear check
Strut-and-tie model (STM) — inclined compressive strut + horizontal tensile tie; IS 456 Annex B for a/d ≤ 1
Column interaction diagram
Simple bending formula M = Vu×a
Correct Answer
B. Strut-and-tie model (STM) — inclined compressive strut + horizontal tensile tie; IS 456 Annex B for a/d ≤ 1
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
Corbel (bracket): short cantilever with a/d ≤ 1. Design by strut-and-tie model (STM): inclined strut carries compressive force; horizontal tie at top carries tension = Vh = Vu×a/z ≈ Vu×a/0.9d. Main reinforcement: closed horizontal ties at top (tension). Framing bars: additional closed links below main bars for confinement. IS 456 Annex B: empirical design chart for a/d ≤ 1. Bearing area: critical at column face.
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.