Virtual Labs

Design of RC Isolated Footing with Axial Load

What is the primary function of an RC isolated footing?

a: To transfer loads from columns to soil safely Explanation

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b: To provide aesthetic appeal to the structure Explanation

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c: To resist lateral loads only Explanation

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d: To act as a waterproofing layer Explanation

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Which factor is most critical when designing an isolated footing?

a: Wind speed Explanation

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b: Soil bearing capacity Explanation

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c: Column height Explanation

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d: Beam Depth Explanation

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What type of reinforcement is commonly used in an RC isolated footing?

a: Only stirrups Explanation

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b: Only longitudinal bars Explanation

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c: A combination of main bars and distribution bars Explanation

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d: No reinforcement is required Explanation

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Which structural failure can occur if the footing is under-designed?

a: Punching shear failure Explanation

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b: Thermal expansion failure Explanation

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c: Buckling failure Explanation

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d: Torsional failure Explanation

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What is the standard assumption in the design of an RC isolated footing?

a: Soil pressure is linearly distributed Explanation

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b: Footing always experiences uniform settlement Explanation

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c: Concrete takes tension and compression equally Explanation

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d: Footings are independent of column load Explanation

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The safe bearing capacity (SBC) of soil is generally in the range of:

a: 1–5 MPa Explanation

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b: 100–400 kPa Explanation

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c: 10–50 MPa Explanation

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d: 500–1000 kPa Explanation

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In footing design, the bending moments are resisted by:

a: Soil only Explanation

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b: Concrete in tension Explanation

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c: Concrete in compression and steel in tension Explanation

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d: Steel in compression only Explanation

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