Steel Design Sheet 11
-
1) Question.
The cross section of TMT reinforcing bar has
Answer. -
2) Question.
The possibility of block shear failure increases with the use of high bearing strength
material and high strength bolts which results inAnswer. -
3) Question.
The IS 800:2007 suggests the use of reduction factors for shear capacity in the
following situation:
1. If the joint is too long.
2. If the grip length is large.
3. If the packing plates of thickness more than 6 mm are used.
The TRUE statements are
Answer. -
4) Question.
The shape of the cross-section, which has the smallest shape factor, is
Answer. -
5) Question.
For the calculation of design wind speed, k1 factor is called
Answer.Vz = k1. k2. k3.Vb k1 = Risk coefficient or probability coefficient k2 = Terrain, height and structure size factor. k3 = Topography factor.
-
6) Question.
Web crippling failure of beam is observed due to
Answer.Web crippling is a localized failure mode in steel beams where the web buckles under high compressive stresses, typically near the point of load application, often caused by concentrated loads or reactions. This failure is directly related to excessive bearing stress on the web panel, as the load is concentrated onto a small area, causing the web to buckle inwards.
.png)
-
7) Question.
Block shear failure of a tension member is due to
1. Yielding of steel due to tension
2. Yielding of steel due to shear
3. Rupturing of steel due to tension
4. Rupturing of steel due to shearAnswer. -
8) Question.
Spliting failure of a plate can be economically avoided by
Answer.Splitting failure can be prevented by increasing end distance.
Splitting failure of a plate (in bolted or riveted joints) occurs when the edge distance (or end distance) between the bolt hole and the edge of the plate is too small.
The plate tends to split along the edge due to tension stresses.
To economically avoid splitting failure, we increase the end distance — not the thickness or bolt diameter, which increase cost unnecessarily. -
9) Question.
When the load line coincides with the centroid of the rivet group, the rivets are subjected to
Answer.