Civil Engineering - Steel Structure Design

26. 

To keep the intensity of bearing pressure between the column base and concrete, compressive throughout the length of the column base, the ratio of the moment M to axial load P should be

A.
B.
C.
D.
E.

Answer: Option B

Explanation:

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27. 

When the upper column does not provide full bearing area over lower column, the column splice is provided with the following assumption

A. bearing plate is assumed as a short beam to transmit the axial load to the lower column section
B. axial load is assumed to be taken by flanges
C. load transmitted from the flanges of upper column and reactions from the flanges of lower columns are equal and form a couple
D. all the above.

Answer: Option D

Explanation:

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28. 

For a steel member of slenderness ratio 350, the allowable stress is 76 kg/cm2 if it is

A. HTW grade of thickness exceeding 32 mm
B. HT grade of thickness exceeding 45 mm
C. HT grade of thickness not exceeding 45 mm
D. All the above.

Answer: Option D

Explanation:

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29. 

The permissible stress to which a structural member can be subjected to, is known as

A. bearing stress
B. working stress
C. tensile stress
D. compressive stress
E. all the above.

Answer: Option B

Explanation:

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30. 

If M is the moment due to a couple in a bearing plate whose width is b and allowable bending stress is P, the thickness (t) of the bending plate of the column splice, is

A.
B.
C.
D.
E.

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.