A,min
1.33 f c Acp f
1.75bw f yt ph
f yt
f y
APPENDIX B, Provision Number 12.5.3.4, p. 511
Add to first column: Vu
0.66 Acv fc'
Add to second column: Vu
2.1Acv fc'
Add to third column: Vu
8 Acv f c'
APPENDIX B, Provision Number 14.5.2.1a, p. 511, add parenthesis to letter “a”: 14.5.2.1(a)
APPENDIX B, Provision Number 18.10.44, p. 512, revised as: 8 A cvv f c 8 A cv f c APPENDIX B, Provision Number 22.5.1.2, p. 513, first column revised as:
Vu
(Vc 0.66
Vu
(Vc 0.66
fcbw d )
f cbwd )
Second column revised as:
Vu
(Vc 2.2
f cbw d )
Vu
(Vc 2.2
f cbw d )
third column, revised as: Vu
(Vc 8
Vu
(Vc 8
fcbw d )
fcbw d )
APPENDIX B, Provision Number 22.7.4.1(a)(b), first column, p. 515, delete repeated part of equation in next line:
` ` ` ` , ` ` , , ` ` , , , ,
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A2 f pc Tth < 0.083 f c cp 1 pcp 0.33 f c T th < 0.083 A2 f pc Tth < 0.083 f c cp 1 pcp 0.33 f c
APPENDIX B, Provision Number 22.7.4.1(a)(c), first column, p. 5 15, add missing part to the equation:
A2 N u f c cp 1 pcp 0.33A g f c
A2 N u Tth < 0.083 f c cp 1 pcp 0.33 A g f c
INDEX, see Beams, page 517, revised as:
-not participating, 18.14.3
Updated as of June 4, 2015 @ 1 p.m.
--````,``,,``,,,,``,,`,`,``````-`-`,,`,,`,`,,`---
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Fig. R11.5.3.1, page 166, revised as:
(References to Section 14.4 changed to Section 11.5.2 and reference to Eq. (14-1) changed to Eq. (11.5.3.1)).
Table 11.5.4.6, Equation (e), page 168, revised as: Calculation option Axial force
Compression
V c
2 f chd
(a)
Simplified Tension
Greater of:
2 1
500 A g N u
f chd
(b)
0
(c)
3.3 f chd
Detailed
Tension or compression
Lesser of:
0.6
N u d
w
f c
(d)
4 w
1.25
f c 0.2
M u V u
w
2
wh hd
N u
(e)
Equation shall not apply if ( M u/V u – ℓ w/2) is negative.
(“ f'”corrected to “ f' c” inside the square root next to 1.25 .)
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` , , ` , ` , , ` , , ` ` ` ` ` ` ` ` , ` , ` , , ` ` , , , , ` ` , , ` ` , ` ` ` ` -
ERRATA as of June 4, 2015 ACI 318-14 318-14––Building Code Requirements for Structural Concrete and Commentary 1st printing Reported by ACI Committee 318 KEYWORDS, page 3, term revised as: contract construction documents NOTES FROM THE PUBLISHER, page 3, first paragraph, fifth sentence revised as: Reference to this commentary shall not be made in contract construction documents. Chapter 2, Definitions, revised as: structural concrete with no reinforcement or with reinforcement reinforcement less less than the minimum concrete, plain — structural amount of amount of reinforcement specified reinforcement specified for reinforced concrete.
structural concrete reinforced with at least the minimum amount s of concrete, reinforced — structural nonprestressed reinforcement, reinforcement, or or prestressed prestressed reinforcement, reinforcement, or both, as specified in required by this by this Code.
reinforced concrete in which internal stresses have been introduced by by concrete, prestressed — reinforced prestressed reinforcement to reinforcement to reduce potential tensile stresses in concrete resulting from service from service loads., loads., and for two-way slabs, with at least the minimum amount of prestressed reinforcement. — structural structural concrete element cast elsewhere than its final position in the structure. concrete, precast —
Chapter 2, Commentary Definitions, revised as: reinforcement, (nonprestressed or prestressed ,) prestressed ,) does not exclude the concrete, plain —The presence of reinforcement, member from being classified as plain concrete, concrete , provided all requirements of Chapter 14 are satisfied .
The term “prestressed concrete” includes members with unbonded tendons or concrete, prestressed — The bonded prestressing reinforcement. Classes of prestressed flexural members are defined in 24.5.2.1. Prestressed two-way slabs require a minimum level of compressive stress in the concrete due to effective prestress in accordance with 8.6.2.1. Although the behavior of a prestressed member s with unbonded tendons may vary from that of members with continuously continuously bonded bonded prestressed reinforcement, bonded and unbonded prestressed concrete are combined with conventionally reinforced nonprestressed concrete nonprestressed concrete under the generic term “reinforced concrete.” Provisions common to both prestressed and and conventionally reinforced nonprestressed concrete concrete are integrated to avoid overlapping and conflicting provisions. Chapter 2, Commentary Definitions,Added:
– Nonprestressed Nonprestressed concrete usually contains no prestressed reinforcement. concrete, nonprestressed – Prestressed two-way slabs require a minimum level of compressive stress in the concrete due to effective prestress in accordance with 8.6.2.1. Two-way slabs with less than this minimum level of precompression are required to be designed as nonprestressed concrete. Chapter 2, Commentary Notation, page 25, revised as: --````,``,,``,,,,``,,`,`,``````-`-`,,`,,`,`,,`---
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T burst = tensile force in general zone acting ahead of the anchorage device caused by spreading of the anchorage force, in.lb
Fig. R7.6.4.2, page 88, revised as (added the word “average” before and “stress” after the word “compression” in annotation):
R8.1, page 93, first paragraph, reference revised as: The design methods given in this chapter … PTI DC10.5DC20.8; R8.4.1.2, page 97, references revised as: The equivalent frame method of analysis has been shown … PTI DC10.5DC20.8; … PTI DC10.5DC20.8 provides guidance for prestressed concrete slab systems. ` ` ` ` , ` ` , , ` ` , , , , ` ` , , ` , ` , ` ` ` ` ` ` ` ` , , ` , , ` , ` , , ` -
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Fig. R11.5.3.1, page 166, revised as:
(References to Section 14.4 changed to Section 11.5.2 and reference to Eq. (14-1) changed to Eq. (11.5.3.1)).
Table 11.5.4.6, Equation (e), page 168, revised as: Calculation option Axial force
Compression
V c
2 f chd
(a)
Simplified Tension
Greater of:
2 1
500 A g N u
f chd
(b)
0
(c)
3.3 f chd
Detailed
Tension or compression
Lesser of:
0.6
N u d
w
f c
(d)
4 w
1.25
f c 0.2
M u V u
w
2
wh hd
N u
(e)
Equation shall not apply if ( M u/V u – ℓ w/2) is negative.
(“ f'”corrected to “ f' c” inside the square root next to 1.25 .)
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` , , ` , ` , , ` , , ` ` ` ` ` ` ` ` , ` , ` , , ` ` , , , , ` ` , , ` ` , ` ` ` ` -
