PART 3 TENSION LOAD
Side-Face Blowout Failure
Results ϕN sb
Results ACI 318-14 Chapter 17 Provision Comments for PROFIS Engineering
ϕN sb
17.3.1.1 The design of anchors shall be in accordance with Table 17.3.1.1 . In addition , the design of anchors shall satisfy 17.2.3 for earthquake loading and 17.3.1.2 for adhesive anchors subject to sustained tensile loading .
Table 17.3.1.1 Failure Mode Side-Face Blowout Strength in Tension
Single Anchor ϕ Nsb ≥ Nua
PROFIS Engineering calculations for design side-face blowout failure in tension :
single anchor — static load conditions design side-face blowout strength = ϕ concrete
N sb
. single anchor — seismic load conditions design side-face blowout strength = ϕ seismic ϕ concrete
Nsb .
ACI 318-14 strength design provisions for side-face blowout failure in tension require calculation of a nominal side-face blowout strength ( N sb or N sbg
). The nominal strength is multiplied by one or more strength reduction factors ( ϕ-factors ) to obtain a design side-face blowout strength ( ϕN sb or ϕN sbg
). ϕ-factors are relevant to static and seismic load conditions .
Reference the Results section of the PROFIS Engineering report for more information on the following parameters :
N sb
: Nominal side-face blowout strength in tension
ϕ concrete
: Strength reduction factor for side-face blowout failure
ϕ seismic
: Strength reduction factor for seismic tension
N ua
: Factored load acting on anchors in tension
A summary of calculated tension design strength versus the factored tension load for each tension failure mode relevant to the application is given in Part 3 Tension Load of the PROFIS Engineering report .
Results ϕN sbg
Results ACI 318-14 Chapter 17 Provision Comments for PROFIS Engineering
ϕN sbg
17.3.1.1 The design of anchors shall be in accordance with Table 17.3.1.1 . In addition , the design of anchors shall satisfy 17.2.3 for earthquake loading and 17.3.1.2 for adhesive anchors subject to sustained tensile loading .
Table 17.3.1.1 Failure Mode Side-Face Blowout Strength in Tension
Anchor Group ϕ N sbg
≥ N ua PROFIS Engineering calculations for design side-face blowout failure in tension :
anchor group — static load conditions design side-face blowout strength = ϕ concrete
N sbg
. anchor group — seismic load conditions design side-face blowout strength = ϕ seismic ϕ concrete
Nsbg .
ACI 318-14 strength design provisions for side-face blowout failure in tension require calculation of a nominal side-face blowout strength ( N sb or N sbg
). The nominal strength is multiplied by one or more strength reduction factors ( ϕ-factors ) to obtain a design side-face blowout strength ( ϕN sb or ϕN sbg
). ϕ-factors are relevant to static and seismic load conditions .
Reference the Results section of the PROFIS Engineering report for more information on the following parameters :
N sbg
: Nominal side-face blowout strength in tension
ϕ concrete
: Strength reduction factor for side-face blowout failure
ϕ seismic
: Strength reduction factor for seismic tension
N ua , edge
: Factored load acting on anchors in tension nearest the fixed edge being considered for side-face blowout
A summary of calculated tension design strength versus the factored tension load for each tension failure mode relevant to the application is given in Part 3 Tension Load of the PROFIS Engineering report .
127 NORTH AMERICAN PROFIS ENGINEERING ANCHORING TO CONCRETE DESIGN GUIDE — ACI 318-14 Provisions