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Questions and Answers
What typically initiates the failure of a tied column?
What typically initiates the failure of a tied column?
- Spalling of the concrete cover (correct)
- Lack of axial load
- Buckling of the longitudinal bars
- Vertical cracks appearing suddenly
Why do axially loaded reinforced concrete columns exhibit brittle failure?
Why do axially loaded reinforced concrete columns exhibit brittle failure?
- Due to the sudden appearance of vertical cracks
- Due to the presence of horizontal cracks
- Due to lack of lateral support provided by the cover (correct)
- Due to the presence of lateral support provided by the cover
At what approximate load percentage do vertical cracks start to appear in axially loaded columns?
At what approximate load percentage do vertical cracks start to appear in axially loaded columns?
- 50%
- 70%
- 20%
- 80% (correct)
Why are columns designed with a higher safety factor than beams?
Why are columns designed with a higher safety factor than beams?
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What is the typical outcome when perfect straight columns subjected to pure axial loading fail?
What is the typical outcome when perfect straight columns subjected to pure axial loading fail?
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