Wednesday, January 19, 2022

Dr.A.P.J.Abdul Kalam University BE VII SEM ALL BRANCH Structural Design –II (Steel) [CE-703] Dec - 2020 Question Paper

Dr.A.P.J.Abdul Kalam University

Bachelor of Engineering

Seventh Semester Main Examination, Dec- 2020

Structural Design –II (Steel) [CE-703]

Branch-Civil

Time: 3:00 Hrs Max Marks 70

Note : (i) Attempt any five questions. All question carry equal marks.

(ii) Assume suitable data if necessary and state them clearly.

Q.1 Design a cylindrical portion for a self-supporting steel stack of height 80m above foundation for

the following data:-

(i) Diameter of cylindrical part= 4.25m

(ii) Diameter of flare portion of base=5.60m

(iii)Height of flared portion =10.0m

(iv)Wind pressure =1.0kn/m2

Uniform throughout the height

Q.2 Design cross beams of foot bridges for the following particulars type of girder on type trusses

span of girder =18m c/c spacing of cross girders =225 m c/c clear walking width between main

girders =3m live load=4 kn/m2

design floor & cross beam of the bridges.

Q.3 Design a deck type welded plate girder for B.G single track loading for the following data

effective span= 24m, spacing of girder =1.9m c/c weight of stock rails=260N/M weight of guard

rails =280 N/M weight of fastening =300 N/M of track timber sleepers =250 mm 150mm 2.8

mm @ 0.4 c/c

Density of timber=7.4 N/M2

Density central section only

Q.4 The effective span of deck type plate girder two lane highway bridges in 30m the reinforced

concrete slab is 250 mm thick inclusive the wearing coat the footpath are provided on either side

of carriage way design the maximum section of the plate girder if the girder is to carry IRC class

A loading.

Q.5 (a) Discuss the design of stiffness in silo.

(b) Explain the step by step design procedure of welded plate girder bridge.

Q.6 Define the following

(i) End bearing for steel bridges

(ii) Type of trusses

(iii) Analysis of towers

(iv) Lining material used for chimney.

Q.7 (a) Derive formula for stresses in conical bottom for water tank.

(b) List any seven elements of plate girder and explain its important features related to design.

Q.8 (a) Discuss the design of stiffness in silo.

(b) Explain the step by step design procedure of welded plate girder bridge.

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