Q. When the effect of wind or earthquake load is considered in the design of rivets and bolts for steel structures, by what percentage the permissible stresses may be exceeded?
Solution:
- Structure may be subjected to the different combinations of loads.
- These loads in combinations do not act for long period.
- Most of the national codes allow some increase in permissible stresses.
- Increase in permissible stresses as per IS : 800 is taken as follows:
- When the effect of wind or seismic load is taken in to account, the permissible stress in steel are increased by 33? percent.
- For rivets, bolts and tension rods, the permissible stresses are increased by 25 per cent, when the effect of wind or seismic load is taken in to account.
The increased values of permissible stress must not exceed yield stress of the material.
- Hence option B is the correct answer.
Related Questions
Q. What is a bullnose brick?
View SolutionQ. Among the tests for bricks,which test is done with the help of finger nail?
View SolutionQ. Which is a plain bar section?
View Solution
Get Question Bank
Strengthen Your Practice with our comprehensive question bank.
