Physics · Reinforced Concrete Structures
Consider a doubly reinforced RCC beam with the option of using either Fe250 plain bars or Fe500 deformed bars in the compression zone. The modulus of elasticity of steel is 2 × 105 N/mm2. As per IS 456 : 2000, in which type(s) of the bars can the stress in the compression steel (fsc) reach its design yield strength (0.87 fy) at the limit state of collapse?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Neither Fe250 plain bars nor Fe500 deformed bars
- 2Both Fe250 plain bars and Fe500 deformed bars
- 3Fe500 deformed bars only
- 4Fe250 plain bars only✓
Correct answer
Fe250 plain bars only
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