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Page 9 of 14 r ` ESR-1917
<br /> TFrn
<br /> c ..
<br /> U
<br /> Mcma at s 2
<br /> C.N
<br /> Sd l __________________________ S at c 2
<br /> 9^ �
<br /> hah,„
<br /> cdeslgn
<br /> edge distance c
<br /> FIGURE 4-INTERPOLATION OF MINIMUM EDGE DISTANCE AND ANCHOR SPACING
<br /> TABLE"EAN AXIAL STIFFNESS VALUES d FOR KB-TZ CARBON AND STAINLESS STEEL ANCHORS IN
<br /> NORMAL-WEIGHT CONCRETE 10'pounds/in.)'
<br /> Concrete condition carbon steel KB-TZ,all diameters stainless steel KB-TZ,all diameters
<br /> uncracked concrete 700 120
<br /> cracked concrete 500 90
<br /> 'Mean values shown,actual stiffness may vary considerably depending on concrete strength,loading and geometry of application.
<br /> TABLE 6-KB-TZ CARBON AND STAINLESS STEEL ALLOWABLE STATIC TENSION(ASD), NORMAL-WEIGHT
<br /> UNCRACKED CONCRETE,CONDITION B(pounds)'2.3
<br /> Concrete Compressive Strength
<br /> Nominal Embedment fc=2,500 psi fc=3,000 psi fc=4,000
<br /> Anchor Depth M Psi fc=6,000 psi
<br /> Diameter (in.) Carbon Stainless Carbon Stainless Carbon Stainless Carbon Stainless
<br /> steel steel steel steel steel steel steel steel
<br /> 3/8 2 1,168 1,221 1,279 1,338 1,477 1,545 11809 1,892
<br /> 2 1,576 1,576 1,726 1,726 1,993 1,993 2,441 2,441
<br /> 1/2
<br /> 31/4 2,561 2,674 2,805 2,930 3,239 3,383 3,967 4,143
<br /> 3 1/8 3,078 3,078 3,372 3,372 3,893 3,893 4,768 4,768
<br /> 5/8
<br /> 4 4,246 4,457 4,651 4,883 5,371 5,638 6,578 6,905
<br /> 3/4 33/4 3,844 4,046 4,211 4,432 4,863 5,118 5,956 6,268
<br /> 43/4 4,959 1 5,590 5,432 6,124 6,272 1 7,071 7,682 8,660
<br /> For SI: 1 Ibf=4.45 N. 1 psi=0.00689 MPa For pound-inch units: 1 mm=0.03937 inches
<br /> 'Values are for single anchors with no edge distance or spacing reduction. For other cases,calculation of Ra as per ACI 318-05 and
<br /> conversion to ASD in accordance with Section 4.2.1 Eq.(5)of this report is required.
<br /> 'Values are for nonnal weight concrete.For sand-lightweight concrete,multiply values by 0.60.
<br /> 'Condition 8 applies where supplementary reinforcement in conformance with ACI 318-05 Section DA4 is not provided,or where pullout or
<br /> pryout strength governs.For cases where the presence of supplementary reinforcement can be verified,the strength reduction factors
<br /> associated with Condition A may be used.
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