1.23 m above the rail level
1.50 m above the rail level
1.83 m above the rail level
2.13 m above the rail level
C. 1.83 m above the rail level
Decrease in h/t ratio
Increase in h/t ratio
Decrease in thickness
Increase in height Where 'h' is height and t is thickness
Beams are simply supported
All connections of beams, girders and trusses are virtually flexible
Members in compression are subjected to forces applied at appropriate eccentricities
All the above
When the gauge distance is larger than the pitch, the failure of the section may occur in a zig-zag line
When the gauge distance is smaller than the pitch, the failure of the section may occur in a straight right angle section through the centre of rivet holes
When the gauge distance and pitch are both equal, the failure to the section becomes more likely as the diameter of the holes increases
All the above
Maximum stress produced by the eccentric load
Maximum stressed fibre
Bending stress
None of these
Load/Shear strength of a rivet
Load/Bearing strength of a rivet
Load/Tearing strength of a rivet
Load/Rivet value
Weight of tank
Wind pressure
Water pressure
Earthquake forces
fc = π²E/(I/r)²
fc = (I/r)²/ πE
fc = (I/r)/ πE
fc = π²E/(I/r)
Dead load includes self-weight of the structure and super-imposed loads permanently attached to the structure
Dead loads change their positions and vary in magnitude
Dead loads are known in the beginning of the design
None of these
d = 1.91 t
d = 1.91 t2
d = 1.91 √t
d = 1.91 t
Transfer load from top of end posts to bearings
Keep the rectangular shape of the bridge cross-section
Stiffen the structure laterally
Prevent the sides-way buckling of top chord
1.5 d
2.0 d
2.5 d
3.0 d Where d is diameter of rivets
2
4
6
8
Modulus of elasticity
Shear modulus of elasticity
Bulk modulus of elasticity
All the above
Mainly used to resist bending stress
Used as independent sections to resist compressive stress
Used as independent sections to resist tensile stress
All the above
t < 1/40 th length between inner end rivets
t < 1/50 th length between inner end rivets
t < 1/60 th length between inner end rivets
t < 1/70 th length between inner end rivets
1.18
1.414
1.67
1.81
Effective throat thickness
Plate thickness
Size of weld
Penetration thickness
40
50
60
70
To reduce the compressive stress
To reduce the shear stress
To take the bearing stress
To avoid bulking of web plate
B = b + 25 mm
B = b + 50 mm
B = b + 75 mm
B = b + 100 mm
Modulus of elasticity
Shear modulus of elasticity
Bulk modulus of elasticity
Tangent modulus of elasticity
The steel beams placed in plain cement concrete, are known as reinforced beams
The filler joists are generally continuous over three-supports only
Continuous fillers are connected to main beams by means of cleat angles
Continuous fillers are supported by main steel beams
Two times the weld size
Four times the weld size
Six times the weld size
Weld size
1500 kg/cm2
1420 kg/cm2
1650 kg/cm2
2285 kg/cm2
fb = W/(b + h√3)tw
fb = W/(b + 2h√3)tw
fb = W/(b + 2h√2)tw
fb = W/(b + h√2)tw
1
2
3
4
26,000 kg
26,025 kg
26,050 kg
26,075 kg
4 zones
5 zones
6 zones
7 zones
0.000008
0.000010
0.000012
0.000014
1/10th of clear depth of the girder plus 15 mm
1/20th of clear depth of the girder plus 20 mm
1/25th of clear depth of the girder plus 25 mm
1/30th of clear depth of the girder plus 50 mm