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Axially Loaded Tied Columns Failure Quiz

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Axially Loaded Tied Columns Failure Quiz

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Questions and Answers

At what percentage of the total load do vertical cracks suddenly start appearing in axially loaded reinforced concrete columns?

Around 40%

Approximately 60%

Up to 80% (correct)

Less than 20%

What is the primary reason for the failure of axially loaded tied columns?

Falling of longitudinal bars

Buckling of the concrete cover

Lack of lateral support provided by the cover (correct)

Brittle failure of the concrete material

Why are columns designed with a much higher safety factor compared to beams?

Columns are more likely to experience sudden collapse (correct)

Columns are more prone to cracking

Columns have less lateral support

Columns are subjected to higher loads

Why do perfect straight columns subjected to pure axial loading experience a brittle failure mode?

Lack of lateral support Signup and view all the answers

What is a characteristic of the failure mode of axially loaded reinforced concrete columns?

Failure is brittle Signup and view all the answers

What is the primary cause of failure in axially loaded tied columns?

Spalling of the concrete cover Signup and view all the answers

At what point does cracking usually start to appear in axially loaded reinforced concrete columns?

Approximately 80% of the total load Signup and view all the answers

Why are columns designed with a much higher safety factor than beams?

Due to potential for sudden failure Signup and view all the answers

What type of failure mode is usually observed in axially loaded reinforced concrete columns?

Sudden failure with little warning Signup and view all the answers

What factor contributes to the buckling of longitudinal bars in tied columns?