WorksheetsDay 69-Dec 3-worksheet-PWD-Steel design topics
Total questions: 15
Worksheet time: 11mins
In tension members, shear lag increases when:
Connection length increases
Lug angles are added
Load is applied only to one leg
Both legs are connected
In battened columns, the minimum number of battens recommended is:
2
3
4
6
Horizontal stiffener in a plate girder is primarily provided to resist:
Shear buckling
Bearing stress
Flexural compression buckling
Lateral torsional buckling
For gantry girders, box sections are used when:
Very light loads
Only vertical loads
Medium crane capacity
Very heavy lateral and vertical loads
Battened columns are suitable for heavy axial and eccentric loads. Select True or False.
True
False
Assertion–Reason. Assertion: In plate girders, the web carries almost the entire shear. Reason: Because bending stresses are concentrated mostly in the flanges.
Both A and R are true, and R is the correct explanation
Both A and R are true, but R is NOT the correct explanation
A is true, R is false
A is false, R is true
In tension members, critical tensile stress occurs at the section where what is minimum?
cross-sectional area
moment of inertia
radius of gyration
yield strength
Lug angles are provided mainly to reduce connection length and to reduce what?
(a)
Effective slenderness ratio of a battened column equals what multiple of the actual slenderness ratio?
(a)
For lacing bars, the angle of inclination θ must lie between which of the following ranges?
40°–70°
20°–40°
60°–90°
30°–60°
The first horizontal stiffener in a plate girder is placed at what distance from the compression flange?
(a)
Design wind pressure is computed using the expression for pressure in terms of velocity at height. Which expression correctly gives the design wind pressure?
P=0.6Vz2
P=0.5Vz2
P=0.6Vz
P=0.06Vz2
A truss member under compression is called what?
(a)
A steel tension plate is 180 mm wide and 12 mm thick. Two bolt holes of 18 mm diameter are provided in a single row. Find the net sectional area of the plate.
(a)
A laced column carries 1200 kN axial load. Total transverse shear equals 2.5% of axial load. There are four lacing bars in one panel inclined at 45∘ . Find the force in each lacing bar.
(a)
