The sway bracing is designed to transfer
2Vi % of the top panel wind load to bottom bracing
10% of the top panel wind load to bottom bracing
25% of the top panel wind load to bottom bracing
50% of the top panel wind load to bottom bracing
Correct Answer :
D. 50% of the top panel wind load to bottom bracing
Related Questions
The statical method of plastic analysis satisfies
Equilibrium and mechanism conditions
Equilibrium and plastic moment conditions
Mechanism and plastic moment conditions
Equilibrium condition only
If the depth of the section of an upper column is smaller than the lower column
Filler plates are provided with column splice
Bearing plates are provided with column splice
Filler plates and bearing plates are provided with column splice
None of these
If the moment of inertia of a section about its axis is I and its effective sectional area is A, its radius of gyration r about the axis, is
r = I/A
r = √(I/A)
r = (I/A)
r = √(A/I)
When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which (Where, Fa is the load shared by each rivet due to axial load and Fm is the shearing load due to moment in any rivet.)
Is at the maximum distance from CG of the rivet group
Is at the minimum distance from CG of the rivet group
Gives the maximum angle between the two forces Fa and Fm
Gives the minimum angle between the two forces Fa and Fm
To the calculated area of cover plates of a built-up beam, an allowance for rivet holes to be added, is
10 %
13 %
15 %
18 %
The greatest gauge of long rivets should not exceed (where d is the diameter of the holes).
2 d
4 d
6 d
8 d
The allowable stress in axial tension for rolled I-sections and channels, is taken as
1420 kg/cm2
1500 kg/cm2
2125 kg/cm2
1810 kg/cm2
Pick up the correct statement from the following:
Loaded columns are supported on column bases
Column bases transmit the column load to the concrete foundation
Column load is spread over a large area on concrete
All the above
The risk coefficient k, depends on
Mean probable design life of structures
Basic wind speed
Both (A) and (B)
None of the above
The ratio of plastic section modulus to elastic section modulus
Is equal to 1
Is always less than 1
Is always greater than 1
Can be less than 1
Bolts are most suitable to carry
Shear
Bending
Axial tension
Shear and bending
The ratio of the span L of the filler joists to the depth d from the underside of the joist to the top of the structural concrete, should not exceed
60
45
35
25
By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?
Tension failure of the plate
Shear failure of the rivet
Shear failure of the plate
Crushing failure of the rivet
Assuming the values of maximum deviation ΔP and ΔE to be 25% of the computed value of P and E respectively, the minimum value of the factor of safety is
1.00
0.67
1.67
2.67
The connection of one beam to another beam by means of an angle at the bottom and an angle at the top, is known as
Unstiffened seated connection
Stiffened seated connection
Seated connection
None of these
The thickness t of a single flat lacing should not be less than
1/30th length between inner end rivets
1/40th length between inner end rivets
1/50th length between inner end rivets
1/60th length between inner end rivets
A major beam in a building structure, is known as
A girder
A floor beam
A main beam
All the above
The gross diameter of a rivet is the diameter of
Cold rivet before driving
Rivet after driving
Rivet hole
None of these
An axial loaded column is supported on a slab base whose projection is 8 cm. If the intensity of pressure from concrete is 40 kg/cm2 and allowable bending stress in slab base is 1890 kg/cm2, the thickness (t) of the slab base, is
t = √(21/64)
t = √(64/21)
t = 21/64
t = 64/21
The beams supporting the steps of a stair are generally known as
Headers
Trimmers
Stringers
Spandrel beams
Slenderness ratio of a compression member is
Moment of inertia/Radius of gyration
Effective length/Area of cross-section
Radius of gyration/Effective length
Radius of gyration/ Area of cross-section
Working shear stress on the gross area of a rivet as recommended by Indian Standards, is
785 kg/cm2
1025 kg/cm2
2360 kg/cm2
None of these
The maximum permissible span of asbestos cement sheets is
650 mm
810 mm
1250 mm
1680 mm
The safe working pressure for a spherical vessel 1.5 m diameter and having 1.5 cm thick wall not to exceed tensile stress 50kg/cm2, is
16 kg/cm2
18 kg/cm2
20 kg/cm2
22 kg/cm2
The load on a lintel is assumed as uniformly distributed if the height of the masonry above it, is upto a height of
The effective span
1.25 times the effective span
1.50 times the effective span
2.0 times the effective span
The equivalent axial load may be defined as the load which produces a stress equal to
Maximum stress produced by the eccentric load
Maximum stressed fibre
Bending stress
None of these
The number of seismic zones in which the country has been divided is
3
5
6
7
The deflection of beams may be decreased by
Increasing the depth of beam
Increasing the span
Decreasing the depth of beam
Increasing the width of beam
Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is
5 mm
6 mm
8 mm
10 mm
The mechanism method of plastic analysis satisfies
Equilibrium and mechanism conditions
Equilibrium and plastic moment conditions
Mechanism and plastic moment conditions
Equilibrium condition only