A beam may be designed as a cased beam if - Steel Structure Design Quiz

Civil Engineering : Steel Structure Design - Quiz(MCQ)

A beam may be designed as a cased beam if

section is of double open channel form with the webs not less than 40 mm apart

beam is solidly encased in concrete with 10 mm aggregate having 28 days strength 160 kg/cm2

overall depth and width of the steel section do not exceed 750 and 450 mm respectively.

All of the above

Correct Answer : All of the above

Explanation : * section is of double open channel form with the webs not less than 40 mm apart
* overall depth and width of the steel section do not exceed 750 and 450 mm respectively.
* beam is solidly encased in concrete with 10 mm aggregate having 28 days strength 160 kg/cm2
* width of the solid casing is kept at least 100 mm more than the width of the steel flange and having a concrete cover of 50 mm

Recently Updated in Steel Structure Design Questions

Which of the following is not a parameter for decrease in strength of slender member?

residual stress

seismic load

initial lack of straightness

variation of material properties

Correct Answer : Option (B) : seismic load

Explanation : The decrease in strength of slender member is due to following parameter : imperfections- initial lack of straightness, accidental eccentricities of loading, residual stress, and variation of material properties over the cross section.