1.0 TENSION
1.4 Side Face Blowout Failure Mode
Results N sb
( continued )
Results ACI 318-19 Chapter 17 Provision Comments for PROFIS Engineering
N sb
17.2.4.1 Modification factor λ a for lightweight concrete shall be in accordance with Table 17.2.4.1 .
……………………………… Table 17.2.4.1 — Modification factor λ a for lightweight concrete Case λ a
[ 1 ]
Cast-in and undercut anchor concrete failure Expansion , screw , and adhesive anchor concrete failure Adhesive anchor bond failure per Eq . ( 17.6.5.2.1 )
1.0 λ 0.8 λ 0.6 λ
[ 1 ] λ shall be in accordance with 19.2.4
17.3.1 The value of ƒ ́c used for calculation purposes in this chapter shall not exceed 10,000 psi for cast-in anchors …………………………………..
17.9.2 Unless determined in accordance with 17.9.3 , minimum spacing parameters shall conform to Table 19.9.2 ( a ).
Table 17.9.2 ( a ) — Minimum spacing and edge distance requirements Anchor type
Spacing parameter
Cast-in anchors Not torqued
Torqued
Minimum anchor spacing 4d a
6d a
Minimum edge distance
Specified cover requirements for reinforcement according to 20.5.1.3
6d a
128 NORTH AMERICAN PROFIS ENGINEERING ANCHORING TO CONCRETE DESIGN GUIDE — ACI 318-19 Provisions