Shear buckling of web in a plate girder is prevented by using________________?

Related Mcqs:

1. Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is______________?

   A. 5 mm
   B. 6 mm
   C. 8 mm
   D. 10 mm

2. The forces acting on the web splice of a plate girder are__________________?

   A. axial forces
   B. shear and axial forces
   C. shear and bending forces
   D. axial and bending forces

3. Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds___________________?

   A. 501
   B. 851
   C. 200 t
   D. 2501

   where t is thickness of web

4. Bearing stiffener in a plate girder is used to__________________?

   A. transfer the load from the top flange to the bottom one
   B. prevent buckling of web
   C. decrease the effective depth of web
   D. prevent excessive deflection

5. Rivets connecting flange angles to cover plates in a plate girder are subjected to_________________?

   A. horizontal shear only
   B. vertical load only
   C. both (A. and (B.
   D. none of the above

6. Horizontal stiffener in a plate girder is provided to safeguard against_______________?

   A. shear buckling of web plate
   B. compression buckling of web plate
   C. yielding
   D. all of the above

7. Economical depth of a plate girder corresponds to_________________?

   A. minimum weight
   B. minimum depth
   C. maximum weight
   D. minimum thickness of web

8. The allowable shear stress in the web of mild steel beams decreases with__________________?

   A. decrease in h/t ratio
   B. increase in h/t ratio
   C. decrease in thickness
   D. increase in height
   where ‘h’ is height and t is thickness

9. The connection of intermediate vertical stiffeners to the web, not subjected to external loads, shall be designed for a minimum shear force (kN/m) of___________________?

   A. 75 t2/h
   B. 125 t3/h2
   C. 125 t2/h
   D. 175 t2/h

   where, t = the web thickness in mm
   h = the outstand of stiffener in mm

10. In case of plastic design, the calculated maximum shear capacity of a beam as per IS:800 shall be________________?

    A. 0.55 Awfy
    B. 0.65 Awfy
    C. 0.75 Awfy
    D. 0.85 Awfy
    where, Aw = effective cross-sectional area resisting shear fy = yield stress of the steel