1
CIVL 232 Structural Concrete Design
Assignment 7
(Tuesday, 13 May 2004
; Due date
: Tuesday, 18 May 2004)
Short columns with uniaxial and biaxial bending, slender columns
1.
Design the longitudinal steel and links for a 350 mm square, short braced column
which supports the following axial load:
G
k
= 1,000 kN,
Q
k
= 1,000 kN, given
f
cu
= 40
N/mm
2
,
f
y
= 460 N/mm
2
,
f
yv
= 250 N/mm
2
.
2.
An internal column shown in Fig. 7.2 in a braced two-storey building supports
approximately symmetrical arrangements of beams (350 × 600 mm and 350 × 500
mm in major and minor axes respectively), resulting in characteristic dead and
imposed loads each of 1000 kN being applied to the column.
The column is 350 mm
square and the storey height is 5 m.
Design the longitudinal reinforcement and links,
given
f
cu
= 40 N/mm
2

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