A rectangular simply supported beam of span 4 m is 300 mm x 700 mm in cross-section and is reinforced with 3 bars of 20 mm on tension side at an effective cover of 50 mm. The beam experiences an imposed working load of 20 kN/m. Assume the density of concrete as 25 kN/m³ (excluding self-weight). What is the maximum bending moment?

Structural Analysis
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Chapter2: Loads On Structures
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Qest.6b.,

A rectangular simply supported beam of span 4 m is 300 mm x 700 mm in cross-section
and is reinforced with 3 bars of 20 mm on tension side at an effective cover of 50 mm.
The beam experiences an imposed working load of 20 kN/m. Assume the density of
concrete as 25 kN/m³ (excluding self-weight). What is the maximum bending moment?
Transcribed Image Text:A rectangular simply supported beam of span 4 m is 300 mm x 700 mm in cross-section and is reinforced with 3 bars of 20 mm on tension side at an effective cover of 50 mm. The beam experiences an imposed working load of 20 kN/m. Assume the density of concrete as 25 kN/m³ (excluding self-weight). What is the maximum bending moment?
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