Design of Steel Structure

The dead load includes

The effective throat thickness in case of incomplete penetration butt held is taken as

The effective length of fillet weld should be less than

The practical safety factor for the material of bolts is

Which of the following is not a compression member?

What is the maximum effective slenderness ratio for a tension member in which reversal occurs

Lacing shall be designed to resist a total transverse shear equal to of axial force

An ideal section for compression

Proof stess for minimum bolt tension is

The flange is classified as plastic if outstand element of compression flange of rolled section is than

Design a lap joint between the two plates each of width 120mm, if the thickness of one plate is 16 mm and the other is 12 mm. The joint has to transfer a design load of 160 kN. The plates are of Fe410 grade. Use bearing type bolt.

List the 8 loading combination to be considered when considering only DL., LL. and EL.

What are the factors that influence wind pressure coefficient?

Write short note on: (i) Plastic Section (ii) Compact Section (iii) Semi-Compact Section

Design a slab base for a column ISHB 350 @ 710.2N/m subjected to the factored axial compressive load of 120kN. Load is transferred to the base plate by direct bearing of Column flanges take $ f_u = 410 MPa $, $ f_y = 250 MPa $.

Calculate the moment carrying capacity of a laterally Unrestrained ISMB 400 member of length 3 m.

Differentiate between local and lateral buckling of beam.

Design a built-up laced column with four angles to support an axial load of 900kN. The column is 12 m long and both the ends are held in position and restrained against rotation. Assume Fe 410 grade steel.

A tie bar 100 mm x 16 mm is welded to another plate. It is subject to factored pull of 300 kN. Find the minimum overlap required if 8 mm site fillet welds are used. Assume any missing data.

Why is lacing provided in the columns?

A tie member of truss consists of double angle section each 80 mm x 80 mm x 8 mm welded on the opposite side of a 12 mm thick gusset plate. Design a fillet weld for making connection in the workshop. The factored tensile force in the member is 300 kN.

The dead load includes

The effective throat thickness in case of incomplete penetration butt held is taken as

The effective length of fillet weld should be less than

The practical safety factor for the material of bolts is

Which of the following is not a compression member?

What is the maximum effective slenderness ratio for a tension member in which reversal occurs

Lacing shall be designed to resist a total transverse shear equal to of axial force

An ideal section for compression

Proof stess for minimum bolt tension is

The flange is classified as plastic if outstand element of compression flange of rolled section is than

Design a lap joint between the two plates each of width 120mm, if the thickness of one plate is 16 mm and the other is 12 mm. The joint has to transfer a design load of 160 kN. The plates are of Fe410 grade. Use bearing type bolt.

List the 8 loading combination to be considered when considering only DL., LL. and EL.

What are the factors that influence wind pressure coefficient?

Write short note on: (i) Plastic Section (ii) Compact Section (iii) Semi-Compact Section

Design a slab base for a column ISHB 350 @ 710.2N/m subjected to the factored axial compressive load of 120kN. Load is transferred to the base plate by direct bearing of Column flanges take $ f_u = 410 MPa $,$ f_y = 250 MPa $.

Calculate the moment carrying capacity of a laterally Unrestrained ISMB 400 member of length 3 m.

Differentiate between local and lateral buckling of beam.

Design a built-up laced column with four angles to support an axial load of 900kN. The column is 12 m long and both the ends are held in position and restrained against rotation. Assume Fe 410 grade steel.

A tie bar 100 mm x 16 mm is welded to another plate. It is subject to factored pull of 300 kN. Find the minimum overlap required if 8 mm site fillet welds are used. Assume any missing data.

Why is lacing provided in the columns?

A tie member of truss consists of double angle section each 80 mm x 80 mm x 8 mm welded on the opposite side of a 12 mm thick gusset plate. Design a fillet weld for making connection in the workshop. The factored tensile force in the member is 300 kN.

• Prying force
• Failure modes of bolted joint
• Lateral tensional buckling
• Intermediate stiffer
• Parameter affecting behaviour of beam column
• Rolled steel section with suitable diagram

Splices for compression members are designed for

The slenderness ratio of compression members is limited to account for

Pitch in bolted connection shall not be more than ____ in tension member and ____ in compression member.

For same load, unsupported length and end conditions, a laced column as compared to battened column

The best double-angle compression member section is

The maximum gauge length in bolted connection is

The most suitable compression member section for a roof truss is

An ideal section for compression member is

The deflection of steel beams in buildings other than industrial building is limited to span divided by

In a bolted plate girder flange, the angle section used should be

(i) Classify the plastic, compact and semi-compact sections. (ii) Consider a T-section of flange 100 mm x 10 mm and web 150 mm x 10 mm. Calculate shape factor, plastic moment and reserve of strength. Use Fe 410 grade of steel.

Design a double-cover plate butt joint using hexagonal head bolt ISO 4016-M 24 x 70-grade 5.6 property class C to connect two flats of size 350 mm x 16 mm for the maximum efficiency. Assume plate material as E250.

A water tank is made with 10 mm thick plates. The plates are jointed by a lap joint using 18 mm dia bolts of grade 4.6 property class C at a pitch of 60 mm. Find the efficiency of the joint.

The tension member of a bridge truss consists of a channel ISMC 300. Design a fillet weld connection of the channel to a 10 mm gusset plate. The member has to transmit a factored force of 800 kN. The overlap is limited to 350 mm. Use field welding.

Differentiate between type-1 and type-2 bracket connections.

A beam ISMB 350@514 N/m has to transmit a factored end reaction of 200 kN to the flange of a column ISHB 250@536.6 N/m. Design a stiffened seat connection using shop welded fillet welds.

Discuss in detail the design procedure for built-up batten column.

A column section ISHB 400@759.29 N/m is to be spliced. Design the splice plates and the connections using M20 bolts of product grade C and property class 4.6. Assume the column has machined ends. The factored design loads are the following: Axial load over the column = 525 kN, Shear force = 225 kN, Bending moment = 75 kN-m.

A column of effective length is 9.3 m. It is subjected to an axial factored load of 1500 kN. Design the lacing system with site welded connections for two channels back-to-back.

Discuss in detail the stiffened and unstiffened seat connections.

A beam ISMB 400@604.3 N/m has to transmit a factored reaction of 160 kN to the flange of a framed column ISHB 200@392.4 N/m. Design a connection. Assume site welding.

A welded plate girder of 20 m span is subjected to the BM of 4000 kN-m and the SF of 800 kN (both are factored loads). The girder is laterally restrained. Use steel of grade Fe 410 and assume yield stress to be 250 MPa. Design the plate girder and check for bending strength.

Why is bracing system provided in the trusses? Why are sag rods required in roof trusses?

Design a channel section purlin using the available section of ISJC only for an industrial building to support a galvanized corrugated iron sheet roof for the following data: Span of truss = 10 m, Spacing of truss = 5 m, Spacing of purlins c/c = 1.5 m, Inclination of roof = $ 30^{\circ} $, Wind pressure = $ 2 kN/m^2 $, Weight of galvanized sheet = $ 150 N/m^2 $.

Splices for compression members are designed for

The slenderness ratio of compression members is limited to account for

Pitch in bolted connection shall not be more than ____ in tension member and ____ in compression member.

For same load, unsupported length and end conditions, a laced column as compared to battened column

The best double-angle compression member section is

The maximum gauge length in bolted connection is

The most suitable compression member section for a roof truss is

An ideal section for compression member is

The deflection of steel beams in buildings other than industrial building is limited to span divided by

In a bolted plate girder flange, the angle section used should be

(i) Classify the plastic, compact and semi-compact sections. (ii) Consider a T-section of flange 100 mm x 10 mm and web 150 mm x 10 mm. Calculate shape factor, plastic moment and reserve of strength. Use Fe 410 grade of steel.

Design a double-cover plate butt joint using hexagonal head bolt ISO 4016-M 24 x 70-grade 5.6 property class C to connect two flats of size 350 mm x 16 mm for the maximum efficiency. Assume plate material as E250.

A water tank is made with 10 mm thick plates. The plates are jointed by a lap joint using 18 mm dia bolts of grade 4.6 property class C at a pitch of 60 mm. Find the efficiency of the joint.

The tension member of a bridge truss consists of a channel ISMC 300. Design a fillet weld connection of the channel to a 10 mm gusset plate. The member has to transmit a factored force of 800 kN. The overlap is limited to 350 mm. Use field welding.

Differentiate between type-1 and type-2 bracket connections.

A beam ISMB 350@514 N/m has to transmit a factored end reaction of 200 kN to the flange of a column ISHB 250@536.6 N/m. Design a stiffened seat connection using shop welded fillet welds.

Discuss in detail the design procedure for built-up batten column.

A column section ISHB 400@759.29 N/m is to be spliced. Design the splice plates and the connections using M20 bolts of product grade C and property class 4.6. Assume the column has machined ends. The factored design loads are the following: Axial load over the column = 525 kN, Shear force = 225 kN, Bending moment = 75 kN-m.

A column of effective length is 9.3 m. It is subjected to an axial factored load of 1500 kN. Design the lacing system with site welded connections for two channels back-to-back.

Discuss in detail the stiffened and unstiffened seat connections.

A beam ISMB 400@604.3 N/m has to transmit a factored reaction of 160 kN to the flange of a framed column ISHB 200@392.4 N/m. Design a connection. Assume site welding.

A welded plate girder of 20 m span is subjected to the BM of 4000 kN-m and the SF of 800 kN (both are factored loads). The girder is laterally restrained. Use steel of grade Fe 410 and assume yield stress to be 250 MPa. Design the plate girder and check for bending strength.

Why is bracing system provided in the trusses? Why are sag rods required in roof trusses?

Design a channel section purlin using the available section of ISJC only for an industrial building to support a galvanized corrugated iron sheet roof for the following data: Span of truss = 10 m, Spacing of truss = 5 m, Spacing of purlins c/c = 1.5 m, Inclination of roof = $ 30^{\circ} $, Wind pressure = $ 2 kN/m^2 $, Weight of galvanized sheet = $ 150 N/m^2 $.

Generally, the purlins are placed at the panel points so as to avoid

The effective length of a fillet weld should not be less than

In moment resistant connections, the moment resistance of riveted connection depends upon

The thickness of the web of a mild steel plate girder is less than $ d/200 $. If only one horizontal stiffener is used, it is placed at

The risk coefficient k depends on

Stiffeners are used in a plate girder

When the bolts are subjected to reversal of stresses, the most suitable type of bolt is

The overlap of batten plates with the main members in welded connections should be more than

(where t is thickness of batten plate.)

The effective length of a compression member of length L held in position at both ends but not restrained in direction, is

Pick up the correct statement from the following.

Give the details of various rolled steel section with suitable diagram.

A tension bar 100 mm x 100 mm is to carry a load of 150 kN. A specimen of the same quality steel cross-section area $ 800 mm^2 $ was tested in the workshop. The maximum load carried by the specimen was 400 kN. Find the ultimate tensile strength, factor of safety in the design and the gauge length.

Explain in brief various types of loads to be considered in the design of steel structure.

A portal frame consists of two hinge supported column of 4 m height separated by a beam of span 5 m and loaded up to collapse with downward uniformly distributed load of 15 kN/m and lateral point load of 50 kN at left beam column junction. Find the plastic moment of resistance if it is of uniform strength.

Differentiate between fillet weld and butt weld. Under which conditions fillet weld is preferred?

Why is lacing provided in the columns?

A tie bar 100 mm x 16 mm is welded to another plate. It is subjected to factored pull of 300 kN. Find the minimum overlap required if 8 mm site fillet welds are used. Assume any missing data.

Write down the steps for the design of axially loaded columns.

A simply supported beam of span 6 m supports a reinforced concrete slab. The compression flange of the beam is restrained due to its connection with the slab. The beam is subjected to a dead load of 25 kN/m and an imposed load of 20 kN/m. Design the beam.

Design a grillage foundation with I-sections for a column having a load of 5000 kN. Column is provided with a base plate of size 700 mm x 800 mm. Take bearing capacity of the soil as $ 200 kN/m^2 $. Assume any missing data.

Design a built-up tension member to cагту a factored force of 340 kN. Use 20 mm diameter black bolts and gusset plate of 8 mm thick.

The line diagram of a steel truss of 9 m span, angle of slope $ 20^{\circ} $ is shown in the figure below. The roof sheeting is of corrugated GI sheets of unit weight 150 N/sq.m of plan area. The truss supports purlins of unit weight 75 N/sq.m of plan area. The weight of bracing used may be taken as 20 N/sq.m of plan area. The spacing of trusses is 4 m and height of eaves 4.5 m. If the building is of medium permeability, determine (a) dead load, (b) wind load and (c) live load at various panel points of the truss. Assume design wind pressure as $ 1500 N/mm^2 $.

Generally, the purlins are placed at the panel points so as to avoid

The effective length of a fillet weld should not be less than

In moment resistant connections, the moment resistance of riveted connection depends upon

The thickness of the web of a mild steel plate girder is less than $ d/200 $. If only one horizontal stiffener is used, it is placed at

The risk coefficient k depends on

Stiffeners are used in a plate girder

When the bolts are subjected to reversal of stresses, the most suitable type of bolt is

The overlap of batten plates with the main members in welded connections should be more than

(where t is thickness of batten plate.)

The effective length of a compression member of length L held in position at both ends but not restrained in direction, is

Pick up the correct statement from the following.

Give the details of various rolled steel section with suitable diagram.

A tension bar 100 mm x 100 mm is to carry a load of 150 kN. A specimen of the same quality steel cross-section area $ 800 mm^2 $ was tested in the workshop. The maximum load carried by the specimen was 400 kN. Find the ultimate tensile strength, factor of safety in the design and the gauge length.

Explain in brief various types of loads to be considered in the design of steel structure.

A portal frame consists of two hinge supported column of 4 m height separated by a beam of span 5 m and loaded up to collapse with downward uniformly distributed load of 15 kN/m and lateral point load of 50 kN at left beam column junction. Find the plastic moment of resistance if it is of uniform strength.

Differentiate between fillet weld and butt weld. Under which conditions fillet weld is preferred?

Why is lacing provided in the columns?

A tie bar 100 mm x 16 mm is welded to another plate. It is subjected to factored pull of 300 kN. Find the minimum overlap required if 8 mm site fillet welds are used. Assume any missing data.

Write down the steps for the design of axially loaded columns.

A simply supported beam of span 6 m supports a reinforced concrete slab. The compression flange of the beam is restrained due to its connection with the slab. The beam is subjected to a dead load of 25 kN/m and an imposed load of 20 kN/m. Design the beam.

Design a grillage foundation with I-sections for a column having a load of 5000 kN. Column is provided with a base plate of size 700 mm x 800 mm. Take bearing capacity of the soil as $ 200 kN/m^2 $. Assume any missing data.

Design a built-up tension member to cагту a factored force of 340 kN. Use 20 mm diameter black bolts and gusset plate of 8 mm thick.

The line diagram of a steel truss of 9 m span, angle of slope $ 20^{\circ} $ is shown in the figure below. The roof sheeting is of corrugated GI sheets of unit weight 150 N/sq.m of plan area. The truss supports purlins of unit weight 75 N/sq.m of plan area. The weight of bracing used may be taken as 20 N/sq.m of plan area. The spacing of trusses is 4 m and height of eaves 4.5 m. If the building is of medium permeability, determine (a) dead load, (b) wind load and (c) live load at various panel points of the truss. Assume design wind pressure as $ 1500 N/mm^2 $.

In plastic analysis, the shape factor for circular sections is

A beam is defined as a structural member subjected to

The failure of a web plate takes place by yielding if the ratio of the clear depth to thickness of the web is less than

The most economical section for a column is

The distance between c.g. of compression and c.g. of tension flanges of a plate girder is known as

The allowable stress, in axial tension for rolled I-sections and channels, is taken as

If d is the distance between the flange angles, the vertical stiffeners in plate girders are spaced not greater than

The cross-section of a standard fillet is a triangle whose base angles are

A second horizontal stiffener is always placed at the neutral axis of the girder if the thickness of the web is less than

The thickness t of a single flat lacing should not be less than

Local and lateral buckling of beam

Checks required for beam design

Calculate the design compressive load for a column made up of ISHB 350 @ 710.2 N/m and 3.5 m high. The column is restrained in direction and position at both the ends. Use steel of grade Fe 410.

Design a simply supported beam of span 4.2 m carrying reinforce concrete floor in which top compression flange is embedded. Beam is carrying 20 kN/m dead load and 20 kN/m imposed load, resume Fe 410 grade steel.

Design a suitable angle section to carry tensile force of 250 kN. Use welded connection.

Prying action

Advantage of fillet weld over butt weld

Comparison of welded joints with bolted joints

Explain some of the common defects in the welds.

Write the advantage of welded joints over bolted joints.

Design a tension member to carry a pull of 830 kN. The member is 3.2 m between c/c of intersections. Design the member using channel section.

A tie member of truss consists of double angle section each 80 mm x 80 mm x 8 mm welded on the opposite side of a 12 mm thick gusset plate. Design a fillet weld for making connection in the workshop. The factored tensile force in the member is 300 kN.

In plastic analysis, the shape factor for circular sections is

A beam is defined as a structural member subjected to

The failure of a web plate takes place by yielding if the ratio of the clear depth to thickness of the web is less than

The most economical section for a column is

The distance between c.g. of compression and c.g. of tension flanges of a plate girder is known as

The allowable stress, in axial tension for rolled I-sections and channels, is taken as

If d is the distance between the flange angles, the vertical stiffeners in plate girders are spaced not greater than

The cross-section of a standard fillet is a triangle whose base angles are

A second horizontal stiffener is always placed at the neutral axis of the girder if the thickness of the web is less than

The thickness t of a single flat lacing should not be less than

Local and lateral buckling of beam

Checks required for beam design

Calculate the design compressive load for a column made up of ISHB 350 @ 710.2 N/m and 3.5 m high. The column is restrained in direction and position at both the ends. Use steel of grade Fe 410.

Design a simply supported beam of span 4.2 m carrying reinforce concrete floor in which top compression flange is embedded. Beam is carrying 20 kN/m dead load and 20 kN/m imposed load, resume Fe 410 grade steel.

Design a suitable angle section to carry tensile force of 250 kN. Use welded connection.

Prying action

Advantage of fillet weld over butt weld

Comparison of welded joints with bolted joints

Explain some of the common defects in the welds.

Write the advantage of welded joints over bolted joints.

Design a tension member to carry a pull of 830 kN. The member is 3.2 m between c/c of intersections. Design the member using channel section.

A tie member of truss consists of double angle section each 80 mm x 80 mm x 8 mm welded on the opposite side of a 12 mm thick gusset plate. Design a fillet weld for making connection in the workshop. The factored tensile force in the member is 300 kN.