Question

Project deliverables

(1) In a particular location of the building, for a two-span continuous beam an unsymmetrical steel

I-section has been used. It is made of an elastic perfectly plastic material having tensile and

compressive yield stress of oy = 275 MPa. By calculating elastic moment (My) and plastic

moment (Mp), determine shape factor for this beam.

[20 marks]

(2) The beam AC carries (Fig. 3) a uniformly distributed design load of 20p kN/m while there is a

design point load of 100 kN applied at mid-span of AB. Assume El is constant for both spans

AB and BC. Using the moment distribution method, determine the moments at supports A, B,

and C. Draw a neat sketch of the bending moment and shear force diagram for the beam AC.

[20 marks]

(3) The client has requested to consider symmetric universal beams (UB) for span AC. Design a

suitable UB according to Eurocode 3 based on the results obtained in Q(2), assuming that the

beam is fully laterally restrained along the length to prevent lateral torsional buckling.

[20 marks]

(4) It has been identified that the critical column of 3 m height carries an axial compression design

load of 150p kN. Design a suitable concrete column according to Eurocode 2 to safely carry the

applied axial compression load. Assume there is no eccentricity. Take Concrete Grade: C30/37;

Aggregate: Maximum size 20mm; High yield Steel grade H460 for reinforcement, fyk =

460N/mm².

[20 marks]

(5) Using academic literature, briefly discuss the suitability of using steel as the design material to

build the column members. Your discussion should make comparisons in terms of structural,

technical and economic efficiency, sustainable and environmental potentials (Limit your

discussion to fewer than 200 words).

[15 marks]

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