Title:
Concrete Q&A: Minimum Lap Splice Length for WWR
Author(s):
Publication:
Concrete International
Volume:
43
Issue:
7
Appears on pages(s):
63-64
Keywords:
slab-on-ground, welded wire reinforcement, crack, requirements
DOI:
10.14359/51732966
Date:
7/1/2021
Abstract:
Minimum lap splice lengths for welded wire reinforcement (WWR) are presented in Section 25.5.4 of ACI 318-19 and Section 3.3.2.5(a) of ACI 301-20. In this Q&A, these requirements are interpreted for slabs-on-ground that are not included as part of a building’s lateral force-resisting system. In addition, the Q&A discusses crack control recommendations for slabs-on-ground per ACI 360R-10.
Related References:
1. ACI Committee 318, “Building Code Requirements for Structural Concrete (ACI 318-19) and Commentary (ACI 318R-19),” American Concrete Institute, Farmington Hills, MI, 2019, 623 pp.
2. ACI Committee 301, “Specifications for Concrete Construction (ACI 301-20),” American Concrete Institute, Farmington Hills, MI, 2020, 69 pp.
3. ACI Committee 117, “Specification for Tolerances for Concrete Construction and Materials (ACI 117-10) and Commentary (ACI 117R-10) (Reapproved 2015),” American Concrete Institute, Farmington Hills, MI, 2010, 76 pp.
4. Manual of Standard Practice: Structural Welded Wire Reinforcement, ninth edition, Wire Reinforcement Institute, Inc., 2016, 52 pp.
5. ACI Committee 360, “Guide to Design of Slabs-on-Ground (ACI 360R-10),” American Concrete Institute, Farmington Hills, MI, 2010, 72 pp.
6. Walker, W.W., and Holland, J.A., “Stay out of the Courthouse Zone,” Engineering Bulletin, Structural Services, Inc., 4 pp., www.ssiteam.com/publications (accessed June 15, 2021).