Title:
Concrete Q&A: Sustained Load and Adhesive Anchors
Author(s):
Publication:
Concrete International
Volume:
42
Issue:
3
Appears on pages(s):
67-68
Keywords:
DOI:
10.14359/51724655
Date:
3/1/2020
Abstract:
Per Provision 17.8.2.2 in ACI 318-141 and Provision 26.7.2(e) in ACI 318-19,2 adhesive anchor installer certification is required when installing horizontally or upwardly inclined adhesive anchors that are to support sustained tension loads. Can you clarify the definition of “sustained tension load” as it applies to these Code provisions?
Related References:
1. ACI Committee 318, “Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary (ACI 318R-14),” American Concrete Institute, Farmington Hills, MI, 2014, 519 pp.
2. 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.
3. Davis, T.M., “Sustained Load Performance of Adhesive Anchor Systems in Concrete,” PhD dissertation, Civil Engineering, University of Florida, Gainesville, FL, 2012, 570 pp.
4. Eligehausen, R.; Blochwitz, R.; and Fuchs, W., “Behavior and Design of Adhesive Anchors Under Sustained Load,” Understanding Adhesive Anchors: Behavior, Materials, Installation, SP-283, R.E. Wollmershauser and D.F. Meinheit, eds., American Concrete Institute, Farmington Hills, MI, 2012, pp. 9.1-9.13.
5. Findley, W.N.; Lai, J.S.; and Onaran, K., Creep and Relaxation of Nonlinear Viscoelastic Materials with an Introduction to Linear Viscoelasticity, first edition, Elsevier, 1976, 380 pp.