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Question: (2012 SUTS Final) Total 40 marks

a)

b) (5 marks)

Identify the design sagging moment of beam AB, and design shear force of beam AB. Check the adequacy of tension reinforcement of 3N20. Given section dimension 400mm x 500mm (width b x depth D), with d=425mm. Take fc = 25MPa, fsy = 500MPa for N bar.

c) (4 marks)

Determine the shear reinforcement to resist the design shear force of beam AB.

d) (16 marks)

Identify the design Moment and Axial force of column BD. Given section dimension 400mm x 500mm (width b x depth D), with d=425mm. Take fc = 25MPa, fsy = 500MPa for N bar. Given reinforcement tension reinforcement and compression reinforcement are similarly 4N25.

Draw the interaction diagram of Nu versus Mu for the column section and show the corresponding safe and unsafe regions.

Can the column withdstand the loading at BD?

Question: (2012 SUTS Final)

Question

a) (15 marks)

Using Flexibility Method, determine the reactions at the supports, and then draw the moment diagram and Shear force diagram. EI is constant. (Support A is pin, and support B and C are rollers)

b) (3 marks)

Given section dimension 250mm x 450mm (width b x depth D), with tension reinforcement of 3N25 and slab link N12. Take fc = 25MPa, fsy = 500MPa for N bar. Given exposure classification of A1, and fire rating period of 120 minutes, determine the effective depth of the beam (d).

c) (5 marks)

Identify the design sagging moment of beam ABC, and design shear force of beam ABC. Check the adequacy of tension reinforcement of 3N25.

d) (4 marks)


Question:

a) (15 marks)

Using Flexibility Method, determine the reactions at the supports, and then draw the moment diagram and Shear force diagram. EI is constant. Support A is roller, and support C is fixed.

b) (5 marks)

Identify the design hogging moment of beam AB, and design shear force of beam AB. Check the adequacy of tension reinforcement of 3N20. Given section dimension 400mm x 400mm (width b x depth D), with d=325mm. Take fc = 25MPa, fsy = 500MPa for N bar.

c) (4 marks)


d) (16 marks)

Identify the design Moment and Axial force of column BC. Given section dimension 400mm x 400mm (width b x depth D), with d=325mm. Take fc = 25MPa, fsy = 500MPa for N bar. Given tension reinforcement and compression reinforcement are similar, 3N20.


Can the column withdstand the loading at BC?

Question:

a) (15 marks)

Using Flexibility Method, determine the reactions at the supports, and then draw the moment diagram and Shear force diagram. E is constant. Support A and D are pinned.

b) (5 marks)

Identify the design sagging moment of beam BC, and design shear force of beam BC. Check the adequacy of tension reinforcement of 3N20. Given section dimension 250mm x 500mm (width b x depth D), with d=425mm. Take fc = 32MPa, fsy = 500MPa for N bar.

c) (4 marks)

Determine the shear reinforcement to resist the design shear force of beam BC.

d) (16 marks)

Identify the design Moment and Axial force of column CD. Given section dimension 250mm x 250mm (width b x depth D), with d=200mm. Take fc = 32MPa, fsy = 500MPa for N bar. Given tension reinforcement and compression reinforcement are similar, 3N20.


Can the column withdstand the loading at CD?


Figure 9 (Support A and B are pinned)

c) (15 marks)

Using Moment Distribution Method, analyse the structure given in Figure 9. Draw Bending Moment Diagram and Shear Force Diagram. (EI is constant).

d) (3 marks)

Plot the forces of AD, BC, and CD on the interaction diagram drawn in question B3(b) above. Can the section in Figure 8 withstand all the forces?

Question (SUT 2011 Final)

c)

Determine i. pure axial design compression capacity Nuo (squash load point) (2 marks)

ii. Nu and Mu for unstressed state of tensile steels (decompression point) (5 marks)

iii. Nub and Mub for balanced failure state (balanced point) (5 marks)

iv. pure bending moment Muo (pure bending point) (2 marks)

v. Draw the Interaction Diagram of Nu versus Mu for the column section shown in Figure 2. Show the corresponding safe and unsafe regions. (3 marks)

vi. On the Interaction Diagram, show the column load calculated from (b). Can the column withstand the loading? (2 marks)


(16 marks)

c) (5 marks)

Identify the design sagging moment of beam BC, and design shear force of beam BC. Check the adequacy of tension reinforcement of 3N20. Given section dimension 250mm x 500mm (width b x depth D), with d=425mm. Take fc = 25MPa, fsy = 500MPa for N bar.

c) (4 marks)

Determine the shear reinforcement to resist the design shear force of beam BC.


(g)


Figure 8 (Support A and D are fixed)

c) (15 marks)

Using Moment Distribution Method, analyse the structure given in Figure 9. Draw Bending Moment Diagram and Shear Force Diagram. (EI is constant).

d) (3 marks)

Plot the forces of AD, BC, and CD on the interaction diagram drawn in question B3(b) above. Can the section in Figure 7 withstand all the forces?

i. pure axial design compression capacity Nuo (squash load point) (2 marks)ii. Nu and Mu for unstressed state of tensile steels (decompression point) (5 marks)iii. Nub and Mub for balanced failure state (balanced point) (5 marks)iv. pure bending moment Muo (pure bending point) (2 marks)v. Draw the Interaction Diagram of Nu versus Mu for the column section shown in Figure 2. Show the corresponding safe and unsafe regions. (3 marks)vi. On the Interaction Diagram, show the column load calculated from (b). Can the column withstand the loading? (2 marks)

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