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    Assignment 1

    Uploaded by

    Ibnu Amir
    1. The document provides instructions for a student to design a roof structure including roof covering, purlins, trusses, and determining load transfer. 2. It asks the student to determine the maximum tensile load that can be carried by an angle section connected by bolts to a gusset plate. 3. It asks for a recommendation on the column section needed to support a given load from a slab. 4. It asks the student to design cover plates to increase the capacity of a given W-section column under a service load.

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    Assignment 1

    Uploaded by

    Ibnu Amir
    56 views5 pages
    1. The document provides instructions for a student to design a roof structure including roof covering, purlins, trusses, and determining load transfer. 2. It asks the student to determine the maximum tensile load that can be carried by an angle section connected by bolts to a gusset plate. 3. It asks for a recommendation on the column section needed to support a given load from a slab. 4. It asks the student to design cover plates to increase the capacity of a given W-section column under a service load.

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    1. The document provides instructions for a student to design a roof structure including roof covering, purlins, trusses, and determining load transfer. 2. It asks the student to determine the maximum tensile load that can be carried by an angle section connected by bolts to a gusset plate. 3. It asks for a recommendation on the column section needed to support a given load from a slab. 4. It asks the student to design cover plates to increase the capacity of a given W-section column under a service load.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    56 views5 pages

    Assignment 1

    Uploaded by

    Ibnu Amir
    1. The document provides instructions for a student to design a roof structure including roof covering, purlins, trusses, and determining load transfer. 2. It asks the student to determine the maximum tensile load that can be carried by an angle section connected by bolts to a gusset plate. 3. It asks for a recommendation on the column section needed to support a given load from a slab. 4. It asks the student to design cover plates to increase the capacity of a given W-section column under a service load.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 5

    Assignment

    1.Design the following roof covering, purlin and truss and also determine the load transfer to the
    top tie beam. If yield strength of structural steel is 420Mpa.Use net wind load of 0.6kN/m2. You
    can use kality steel manual to choose the section for roof covering, purlin and truss. Use truss
    spacing 1m and 0.6m for purlin.
    NB: Use the following procedure

     Choose type of ega for roof covering from kality manual.


     Check flexural capacity
     Check the thickness of ega and spacing of purlin for deflection
     Transfer the load to purlin (reaction force)
     Choose the section for purlin
     Check flexural capacity
     Check the thickness of ega and spacing of purlin for deflection.
     Transfer the load to truss (reaction force)
     Design 1 governing diagonal member, bottom chord and top chord members. (You will
    do for only 1 truss).

    2. Determine the maximum allowable tensile load that can be carried by tension member made of
    an angle section L160x100x12mm connected at the end to gusset plate by two rows of 22mm

    diameter bolts as shown below. Angle section is made Fe485 ( F100


    y =345 MPa ∧ F u = 485 MPa )
    mm .

    60 mm
    50 mm
    160 mm
    Ta?

    50 50 50 50 50

    3. Suppose you are Consultant Engineer and expected to consult the following column.
    The universal column with length of 3.6m is expected to support roto of 10,000L. RC
    slab of 3m*3m with depth of 120mm is going to support roto which is both side
    symmetries. What is your recommendation on the column section? (Assume the column
    as one end fixed and the other as free. Le=2L). Weight of roto is 250kg.
    4. It is desired to design a column for compression member to support a service design
    axial compression of 6490kN using UC with effective length of 3.65m and they are the
    same in both directions. A W360x202 is on hand with a good supply of 25mm thick
    plates. Design cover-plates to be connected to the flanges of W-section to enable the
    column to support the required load.
    y
    PL −b p × 25 mm
    W−360×202
    x x

    PL −b p × 25 mm

    y
    5. A simply supported beam 8.00 m span is laterally supported at the third points and carries un
    factored uniform loads of 25 kN/m and 4.5 kN/m permanent load. In addition, the beam carries
    at mid span un factored concentrated load of 100 kN permanent load and 75kN imposed load.
    Find a universal beam of grade Fe 430.
    6.Check adequacy of bracket-connection shown below assuming bearing type connection, if 25mm
    diameter A-325N bolts are used for the connection. Bracket-plate is made of A-36 steel
    ( F y=250 MPa ∧ F u =400 MPa ) . Thickness of bracket plate is 12mm. The connection between
    bracket-plate and flange of column is made by bolt pattern and spacing shown on figure with single shear
    plane.
    e P = 110 kN
    125 mm 150 mm
    125 mm
    60 mm 6 5
    75 mm t p =12mm 75 mm 2
    5
    75 mm c.g 75 mm c.g ȳ=?
    6 3
    60 mm x̄=?

    7. For the bracket connection with weld pattern as shown below, determine the required size of a fillet-
    w
    weld if welding is made using E-70 electrodes ( F u = 485 MPa ) . Assume the plate does not govern or
    control the design.
    P = 65 kN
    150 mm 200 mm

    200 mm

    8.Design the following structural universal column with length of 4m and subjected to the
    following loading. Axial load is 625kN.Use Fe430.
    y-y axis

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