Important RGPV Question
CE-801 Design of Steel Structures
VIII Sem, CE
UNIT 1- Basis Of Structural Design And Connection Design
Q.1) Design a lap joint between two plates each of width 120 mm. 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 Fe 410 grade. Use bearing type bolts.
(RGPV May 2023)
Q.2) A tie member consists of two ISMC 250. The channels are connected on either side of a 12 mm thick gusset plate. Design the welded joint to develop the full strength of the tie. However, the overlap is to be limited to 400 mm.
(RGPV May 2023)
Q.3) An ISLB 300 carrying UDL of 50 kN/m has effective span of 8 m. This is to be connected to the web of girder ISMB 450. Design the framed connection using 20 mm black bolts.
(RGPV May 2023)
Q.4) Explain block shear failure.
(RGPV Nov 2023)
Q.5) A tie member of a roof truss consisting of an angle section ISA 75 × 75 × 10 of Fe 410 grade, is welded to a 10mm thick gusset plate. Design a weld to transmit a load equal to full strength of the member. Assume shop welding.
(RGPV Nov 2023)
Q.6) A column section ISHB 250@ 500.3 N/m carries an axial load of 600 kN. Design the column splices.
(RGPV Nov 2023)
Q.7) Calculate the strength of a 20mm diameter bolt of grade 4.6 for the following cases. The main plates to be joined are 12mm thick:
a) Lap joint.
b) Single cover butt joint, cover plate being 10mm thick.
(RGPV May 2024)
Q.8) Design a seat connection for the factored beam end reaction of 110 kN. The beam section is ISMB 250 @ 365.9 N/m connected to the flange of column section ISHB200 @ 365.9 N/m using bolted connection. Steel is of Fe410 and bolts are of grade 4.6.
(RGPV May 2024)
Q.9) Differentiate between bearing type connection and friction type connection.
(RGPV May 2024)
Q.10) Sketch and briefly explain any three failure patterns of bolted connection. An ISLB 300 carrying UDL of 50 kN/m has effective span of 8 m. This is to be connected to the web of girder ISMB 450. Design the framed connection using 20 mm black bolts.
(RGPV May 2024)
Q.10) An ISLB 300 carrying UDL of 50 kN/m has effective span of 8 m. This is to be connected to the web of girder ISMB 450. Design the framed connection using 20 mm black bolts. A tie member consisting of an angle section ISA 100 × 75 × 8, designed to transfer a factored axial load of 280kN, is to be welded to a gusset plate of 10 mm thick, using 6 mm fillet weld. Design the weld, if the weld is provided on three sides by overlapping the angle on the gusset plate, at a shop. Also sketch the connection showing the weld lengths
(RGPV May 2024)
Q.10) A tie member consisting of an angle section ISA 100 × 75 × 8, designed to transfer a factored axial load of 280kN, is to be welded to a gusset plate of 10 mm thick, using 6 mm fillet weld. Design the weld, if the weld is provided on three sides by overlapping the angle on the gusset plate, at a shop. Also sketch the connection showing the weld lengths
(RGPV May 2024)
UNIT 2- Design Of Compression And Tension Members
Q.1) Design a double angle tension member connected on each side of a 10 mm thick gusset plate to carry an axial factored load of 375 kN. Use 20 mm black bolts. Assume shop connection.
(RGPV May 2023)
Q.2) Determine the design axial load capacity of the column ISHB 300@577 N/m if the length of column is 3 m and its both ends are pinned.
(RGPV May 2023)
Q.3) Design a laced column with two channels back to back of length 10 m to carry an axial factored load of 1400 kN. The column may be assumed to have restrained in position but not in direction at both ends (hinged ends).
(RGPV May 2023)
Q.4) Design a built-up column consisting of two channels placed back-to-back to carry an axial factored load of 1500 kN. Length of the column is 6m and the column is restrained in position but not in direction at both ends. Provide single lacing system with bolted connection.
(RGPV Nov 2023)
Q.5) Explain the factors effecting strength of tension members.
(RGPV Nov 2023)
Q.6) Design a tension member to carry factored load of 400 kN connected to shorter leg back-to-back. Length of member is 3 m.
(RGPV Nov 2023)
Q.7) With the help of suitable diagram, explain the concept of shear lag.
(RGPV Nov 2023)
Q.8) Determine the design tensile strength of the plate 200 × 10mm with the holes as shown below if the yield strength and ultimate strength of steel are 250MPa and 410MPa. M20 bolts and 10mm thick gusset plates are used.
(RGPV Nov 2023)
Q.9) Explain the purpose of lug angles in tension member connection.
(RGPV Nov 2023)
Q.10) Design a double angle discontinuous strut to carry a factored load of 135 kN. The length of strut is 3m between intersections. The two angles are placed back-to-back (with long legs are connected) and are tack bolted. Use steel grade Fe 410.
a) Angles are placed on opposite side of 12 mm gusset plate.
b) Angles are placed on same side of 12 mm gusset plate
(RGPV May 2024)
UNIT 3- Design Of Flexural Members
Q.1) A roof of a hall measuring 8 m × 12 m consists of 100 mm thick RC slab supported on steel I-beams spaced 3 m apart. The finishing load may be taken as 1.5 kN/m². Design the steel beam.
(RGPV May 2023)
Q.2) Illustrate the different elements of plate girder.
(RGPV Nov 2023)
Q.3) Distinguish between laterally restrained and unrestrained beams.
(RGPV Nov 2023)
Q.4) Design a laterally supported beam of effective span 6m for the following data Grade of steel : Fe410 Maximum bending moment M = 150kNm Maximum shear force V=210kN Check for deflection is not required.
(RGPV May 2024)
Q.5) Design a welded simply supported plate girder for a span of 30m. The girder is loaded with uniformly distributed load of the intensity 35kN/m due to dead and live loads.
(RGPV May 2024)
Q.6) What do you understand laterally restrained beams? Explain with diagram?
(RGPV May 2024)
UNIT 4- Design Of Columns And Column Bases
Q.1) Design a suitable slab base for a column section ISHB 200@ 365.9N/m supporting an axial load of 500 kN. The base plate is to rest on a concrete pedestal of M20 grade concrete. The load is transferred to the base plate by welded connection.
(RGPV Nov 2023)
UNIT 5- Design Of Industrial Buildings
Q.1) Write note on:
i) Types of roof trusses
ii) Purlins
iii) Profile of gantry girder section
iv) Deflection limits of gantry girders
(RGPV May 2023, 2024)
Q.2) Design a purlin on a sloping roof truss with the dead load of 1.5 kN/m², a live load of 2.5kN/m² and a wind load of 0.6 kN/m² (suction). The purlins are 1.8m center to center and a span of 3.8m, simply supported on a rafter at a slope of 20°.
(RGPV Nov 2023)
Q.3) Design an I section purlin for an industrial building located at Chennai, with Galvanised iron sheets as the roofing material.
Span of the truss = 13m
Spacing of trusses = 6m c/c
Spacing of purlins = 1.2m c/c
Wind pressure intensity = 2 kN/m²
Weight of GI sheets = 130N/m²
Grade of steel : Fe 410
(RGPV May 2024)
Extra Questions-
Q.1) Write a short notes on any two:
i) Different types of weld
ii) Sketch different types of bolted connections
iii) Lapjoint and their types
iv) Roof truss and their types
(RGPV Nov 2023)
Q.2) Distinguish between working stress design and limit state design of steel structures.
(RGPV Nov 2023)
Q.3) Write a note on grouping of timber based on modulus of elasticity and extreme fiber stress as per IS 883: 1994.
(RGPV May 2024)
— Best of Luck for Exam —
