ACI 318-19 Building Code Requirements for Structural Concrete | 2022 Edition with Commentary
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Ensure compliance and optimize structural concrete design with the ACI 318-19 Building Code Requirements, updated with the 2022 errata. This essential standard by the American Concrete Institute provides comprehensive guidelines for the design, construction, and material requirements of structural concrete, ensuring safety, durability, and performance.
Key Features:
- Comprehensive Coverage: Includes detailed provisions for structural systems, materials, and construction practices.
- Updated Content: Incorporates the latest 2022 errata for enhanced accuracy and clarity.
- Expert Commentary: Features in-depth explanations to support code application and interpretation.
- Versatile Use: Applicable to a wide range of projects, including buildings, bridges, and other concrete structures.
Why Choose ACI 318-19?
- Meet modern building code requirements with confidence.
- Streamline project planning and execution with trusted industry standards.
- Enhance structural safety and compliance with up-to-date provisions.
Stay ahead in the field of structural concrete design. Order ACI 318-19 today to access the definitive resource for engineers, architects, contractors, and building professionals.
Product Details
Published: 06/01/2019
ISBN(s): 9781641950565
Number of Pages: 625
Units of Measure: I-P
File Size: 1 file , 29 MB
Note: This product is unavailable in Russia, Ukraine, Belarus
ACI 318-19 Structural Concrete Code - 30 Essential Technical FAQs
1. Minimum concrete cover for cast-in-place beams? ▼
1.5" for No.11 bars and smaller, 2" for No.14-18 bars in exposed conditions (Table 20.6.1.3.1).
2. Maximum water-cement ratio for freeze-thaw exposure? ▼
0.40 with air entrainment (Table 19.3.2.1), 650 psi minimum compressive strength.
3. Development length for #8 bar in 4000 psi concrete? ▼
Basic development length: \(l_d = \frac{3}{40}\frac{f_y}{\sqrt{f'_c}}\psi_t\psi_e\psi_s\) = 54" (25.4.2.2)
4. Maximum allowable slump without superplasticizer? ▼
7" for footings, 6" for reinforced walls (Table 26.4.2.1).
5. Shear reinforcement spacing limits? ▼
Max \(s \leq d/2 \leq 24"\) (9.7.6.2.2). For \(V_s > 4\sqrt{f'_c}b_wd\): halve spacing.
6. Minimum column dimensions for SDC D? ▼
12" minimum with 1.5% max longitudinal reinforcement (18.7.3.1).
7. Temperature reinforcement requirements? ▼
0.0018Ag for Grade 60 steel (24.4.3.2). Max spacing 18".
8. Lap splice length in tension? ▼
Class B splice: \(1.3l_d\) (25.5.2.1). 50% max reinforcement spliced within lap length.
9. Maximum spacing of headed shear studs? ▼
\(d/2 \leq 24"\) (22.6.6.3). First stud within 2" from support face.
10. Prestressed concrete initial stress limits? ▼
\(0.94f_{py}\) or \(0.80f_{pu}\) (20.3.2.5.1). 2% relaxation loss minimum.
11. Anchor bolt edge distance requirements? ▼
11. Anchor bolt edge distance requirements? ▼
Minimum \(7d_a\) for cast-in anchors (17.7.6.1.1). 25% reduction with edge reinforcement.
12. Maximum aggregate size for slabs? ▼
1/3 slab thickness or 3/4 minimum clear spacing (26.4.2.1(b)).
13. Exposure class requirements for sulfate attack? ▼
Class S1: 0.50 w/cm + 4000 psi + II/V cement (Table 19.3.1.1).
14. Vertical wall reinforcement spacing? ▼
Max 18" or 3× wall thickness (11.7.2.1). 0.0012Ag minimum for Grade 60.
15. Concrete maturity testing acceptance? ▼
Equivalent age method per ASTM C1074 (26.12.3.2). Minimum 70% specified strength.
16. Maximum deflection for cantilever beams? ▼
L/180 immediate, L/150 total (24.2.2). Camber ≤ L/240 required.
17. Minimum footing thickness? ▼
6" for footings on soil, 12" on piles (13.3.1.2). Edge thickness ≥ 6".
18. Post-tensioning grout requirements? ▼
0.45 w/cm ratio, 4000 psi compressive strength (25.9.3.2).
19. Shear friction design method? ▼
\(V_n = A_{vf}f_y\mu\) where μ=1.4λ for monolithic concrete (22.9.4.2).
20. Maximum spiral pitch for columns? ▼
Min of 3" or \(d_{spiral}/6\) (25.7.3.3). Clear spacing ≥1⅛".
21. Construction joint surface preparation? ▼
1/4" amplitude CSP 3 profile (26.10.5.3). Laitance removal required.
22. Minimum slab thickness for fire rating? ▼
3.5" for 1-hour rating (7.7.1.4). 20% increase for lightweight concrete.
23. Maximum spacing of crack control reinforcement? ▼
12" for temp/shrinkage (24.4.3.3). 18" for structural slabs.
24. Pedestal design requirements? ▼
h ≤ 3× least dimension (2.3). 1% vertical reinforcement minimum (11.8.2.1).
25. Maximum bearing stress at supports? ▼
\(0.85f'_c\sqrt{A_2/A_1} \leq 1.7f'_c\) (22.8.3.2).
26. Seismic hook requirements? ▼
135° bend + 6dₐ extension (25.3.3). Required in SDC C-F (18.6.3.3).
27. Minimum flexural reinforcement? ▼
\(A_{s,min} = \frac{3\sqrt{f'_c}}{f_y}b_wd \geq \frac{200}{f_y}b_wd\) (9.6.1.2).
28. Maximum reinforcement strain limit? ▼
0.004 for compression-controlled sections (21.2.2.1). φ=0.65 applies.
29. Embedment depth for headed anchors? ▼
Minimum 8dₐ or 15" (17.7.5.2.1). Edge distance ≥ 6dₐ.
30. Two-way shear requirements? ▼
\(v_u \leq φv_n = φ(2 + \frac{4}{\beta})\lambda\sqrt{f'_c}\) (22.6.5.2).