DESIGN OF STEEL STRUCTURE QUIZ

50% by direct bearing and 50% through fastenings

75% by direct bearing and 25% through fastenings

Fully through fastenings

Fully by direct bearing

0.65 Awfy

0.75 Awfy

0.55 Awfy

0.85 Awfy

Stiffen the structure laterally

Prevent the sides-way buckling of top chord

Keep the rectangular shape of the bridge cross-section

Transfer load from top of end posts to bearings

5 zones

3 zones

6 zones

4 zones

both (i) and (ii)

both (i) and (iii)

(i), (ii) and (iii)

only (i)

paV”2

paV2

pa V

p a (1/V)

±0.5

± 0.2

± 0.7

0

10% of the top panel wind load to bottom bracing

25% of the top panel wind load to bottom bracing

2Vi % of the top panel wind load to bottom bracing

50% of the top panel wind load to bottom bracing

80mm

40mm

100mm

60mm

Bending moment in rafter

Shear force in rafter

Axial force in rafter

Deflection of rafter