AS 3600/Amdt 1/2010-11-15
STANDARDS AUSTRALIA Amendment No. 1 to AS 3600—2009 Concrete structures CORRECTION The 2009 edition of AS 3600 is amended as follows; the amendment(s) should be inserted in the appropriate place(s). SUMMARY: This Amendment applies to Clauses 1.7, 5.4.1, 5.5.2, 8.1.5, 11.4, 13.1.4 and 13.2.2, Tables 5.6.3 and 5.6.4, Equations 7.2.4(4), 8.1.3(1), 8.1.3(2) and 8.4.3, Appendix A, and Bibliography. Published on 15 November 2010. AMDT No. 1 NOV 2010
Clause 1.7 Replace definition for k uo with the following: ratio, at ultimate strength, without axial force of the depth to the neutral axis from the extreme compressive fibre to do
AMDT No. 1 NOV 2010 AMDT No. 1 NOV 2010
Delete ‘is proportioned’. Clause 5.4.1, Item (b)(iii) Delete first line and replace with the following: (iii) is proportioned so that— Clause 5.5.2(b) Delete text of Item (i).
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AMDT No. 1 NOV 2010
Clause 5.4.1, Item (b)(ii)
ISBN 978 0 7337 9720 0
AMDT No. 1 NOV 2010
Table 5.6.3 Replace existing table with the following: Minimum dimensions (mm)
FRP for structural adequacy (min)
Combinations for column exposed on more than one side N f* = 0.2 Nu
N f* = 0.5 Nu
N f* = 0.7 Nu
Column exposed on one side N f* = 0.7 Nu
as
b
as
b
as
b
as
b
30
25
200
25
200
32 27
200 300
25
155
60
25
200
36 31
200 300
46 40
250 350
25
155
90
31 25
200 300
45 38
300 400
53 40
350 450 3
25
155
120
40 35
250 350
45 3 40 3
350 3 450 3
57 3 51 3
350 3 450 3
35
175
180
45 3
350 3
63 3
350 3
70 3
450 3
55
230
3
3
3
3
70
295
240
61
350
75
450
NOTES: 1
a s = axis distance
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b = smaller cross-sectional dimension of a rectangular column or the diameter of a circular column 2
For prestressing tendons, the axis distance shall be increased as given in Clause 5.3.3.
3
These combinations for columns with a minimum of 8 bars.
AMDT No. 1 NOV 2010
Table 5.6.4, Note 1
AMDT No. 1 NOV 2010
Equation 7.2.4(4)
Replace ‘≤0.025’ with ‘≤0.25’.
Replace ‘ lb = z 2 + a 2 − d c ’ with the following:
lb = z 2 + a 2 − d c AMDT No. 1 NOV 2010
AMDT No. 1 NOV 2010
Equation 8.1.3(1) Replace ‘(within the limits 0.67 ≤ α2 ≤ 0.85)’ with the following: (within the limits of 0.67 ≤ α 2 ≤ 0.85) Equation 8.1.3(2) Replace ‘ γ 2 = 1.0 − 0.003 f c′ ’ with the following:
γ = 1.05 − 0.007 f c′
AMDT No. 1 NOV 2010
Clause 8.1.5
AMDT No. 1 NOV 2010
Equation 8.4.3
Second paragraph, add ‘and M* > 0.6M u ’ after ‘0.36’.
Delete existing equation and replace with the following: τu
=
⎛ Asf f sy g p µ ⎜⎜ + bf ⎝ sbf
⎞ ⎟⎟ + k co f ct′ ⎠
≤ lesser of (0.2 f c′ , 10 MPa) AMDT No. 1 NOV 2010
Clause 11.4
AMDT No. 1 NOV 2010
Clause 13.1.4
AMDT No. 1 NOV 2010
Clause 13.2.2
Renumber the equation ‘ k =
Third paragraph, last line, delete ‘0.8 times the development length of a hooked bar of the same diameter.’ and replace with ‘0.4 Lsy.t of a bar of the same diameter.’
1
In the definition of k7 delete ‘greater than’ and replace with ‘at least’
2
Second paragraph, insert ‘29k 1d b,’ before ‘k 7 Lsy.t and Lsy.t + 1.5sb ,’.
AMDT No. 1 NOV 2010
Appendix A
AMDT No. 1 NOV 2010
Bibliography
Reference AS 1012.10, replace ‘Brasil’ with ‘Brazil’.
Delete reference to AS 3600 Supp1 and replace with the following: 3600 Supp1
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L1 ’ as ‘11.4(3)’. 2H w
Concrete structures—Commentary (Supplement to AS 3600)
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