ML20141D083

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Mod/Addition Instruction MAI-4, Bolt Anchors Set in Hardened Concrete Structures
ML20141D083
Person / Time
Site: 05000000, Browns Ferry
Issue date: 09/26/1985
From:
TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML082340290 List:
References
MAI-4, NUDOCS 8604070392
Download: ML20141D083 (34)
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{{#Wiki_filter:m 1 Page 1 MAI-4 SEP 2 8 1335 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT MODIFICATION / ADDITION INSTRUCTION 4 I BOLT ANCHORS SET IN HARDENED CONCRETE STRUCTURES 1.0 PURPOSE To implement the inspection, testing, and documentation requirements of f-General Construction Specifications G-32 and G-66. 2.0 SCOPE This procedure is applicable to expansion shell anchors, wedge bolts, and undercut anchors installed in Class I structures at Browns Ferry 1 Nuclear Plant.

3.0 REFERENCES

3.1 General Specification No. G Bolt Anchors Set in Concrete 1 3.2 General Specification No. G Installation, Inspection,'and Testing of Maxibolt Undercut Anchors 4.0 DEFINITIONS 4.1 Class I - Nuclear plant equipment and structures so classified in the plant safety analysis report for Browns Ferry Nuclear Plant. 4.2 M - A number of anchors which are considered as a group for s. testing purposes. 4.3 Expansion Anchor - An anchor which expands laterally in a drilled i hole to resist pullout. ~ Expansion Shell Anchor - An expansion shell anchor which uses the shell for drilling the hole (designated herein and on the drawings as SSD). p L. 8604070392 860328 PDR ADOCK 05000259 p PDR L

l . k' Page 2 ( MAI-4 4.0 DEFINITIONS (Continued) r Nondrilling Exoansion Shell Anchor - An expansion shell anchor which is placed in a p'edrilled hole (designated herein and on the r drawings as SPD). 'Jedge Bolt Anchor - An expansion anchor which consists of an externally threaded bolt with a split ring or separate wedge pairs that expand laterally against the sides of a predrilled hole when the bolt is torqued, and which will expand further if the bolt is partially extracted from the hole by a tensile load (designated herein and on the drawings as WB). Grouted Anchor - An anchor which consists of a headed bolt, or threaded rod with an end nut, placed in a drilled hole, the remainder of which is filled with grout or dry-pack mortar. 4.4 Slip - During testing an anchor shall be considered to have exhibited slip if the gauge on the loading device indicates a dropoff or lack of load advancement while the anchor is being strained. ? 4.5 Strip Insert - Prefabricated steel embedments which are installed ( j prior to concrete placement and which form a dovetail slot for fastening attachments. t~ 4.6 Hol-O-Ram - A center hole hydraulic jack used on the expansion anchor pullout test fixture. 4.7 Undercut Anchor - A non-slip expansion anchor with a sleeve which ~ expands into a conical-shaped hole at the base of the primary concrete hole (hereafter designated as an anchor or undercut anchor). On design drawings, the anchor will be designated UC. L =

-I i Page 3 q MAI-4 5.0 RESPONSIBILITIES SEP 2 C E5 5.1 Coteirant Enrinner - Responsible for determining and specifying whe.n this procedure is to be used. kesponsible for supplying information and dispositions as required by the data sheets. Responsible for transmitting completed data sheets to OE using Attachment D. 5.2 QC Insrector - Responsible for performing and documenting the QC / inspections of this procedure. Responsible for allowing ccerective action within the boundarios of this procedure, such as permitting an SSD that slips to be reset only once. 1 S.3 Craft Forenan - Responsible for installing expansion anchors per G-32 and undercut anchora per G-66 and performing and documenting inspections as specified on the data sheet. 6.0 INSTALLATION i ~ I NOTES:

1) Craftsmen to ensure equipment in area of drilling / chipping is protected from dust and debris.

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2) Drilling and Excavating permit Form BF-9 is required for installing wed e bolts and undercut anchors, 6

s 6.1 Expansion Shell Anchors .o Expansion shell anchors shall be installed according to . manufacturer's instructions and G-32. t 6.2 Wedge Bolt Anchors ~ Wedge bolts shall be installed in accordance with G-32. 6.3 Undercut Anch'ers Undercut schors shall be installed in accordance with the L. manufacturer's instructions and G-66. p 7.0 INSPECTION AND TESTS 7.1 General - The required inspections and tests are specified on the data sheet. The instructions and acceptance criteria for performing these inspections and tests are contained in this procedure.

.I i Page 4 t HAI-4 7.2 Expansion Shell Anchors - (SSDs) Document Inspections on SSD Data Sheet - Attachment A 7.2.1 Selection of Anchort for Testing The lot _and the minimum number of anchors to be inspected and pull tested will be designated by the cognizant engineer on the data sheet after the anchors have been installed. The quantity {' should comply with this table. Number of Anchors in tot Minimum Number To Be Inspected and Pull Tested Less than 5 1 5 to 15 2 16 to 60 3 More than 60 5 percent The QC inspector shall randomly select those anchors to be inspected and pull tested from the lot. If there is more than one size of anchor in the lot, selection of anchors shall be made without bias toward any size of,anchot. 7.2l.2 Equicqent_ 7.2.2.1 A calibrated center-hole hydraulic jack with a pressure gauge shall be used to load the anchors.. I 7.2.2.2' The load shall be transferred from the jack to the s anchor with a threaded rod. The reaction from the f jack shall be delivered to the concrete surface through a device which bears no closer than 8 inches n from the anchor centerline and which is adjustable to ensure that the anchor is loaded axially. (A spherical-seated bearing assembly placed between the -)( ram and the nut op the threaded rod assists in assuring that the anchor is loaded axially.) 1

r d 4 Page 5 {' MAI-4 SEP 2 C 13!5 7.2 SSDs (Continued) f 7.2.2.3 The gauges for use with the jack or the jack-gauge as a unit shall be accurate within 5 p'ercent at the pressure required for the proof loads specified. (This accuracy may be obtained using gauges conforming to ANSI.340.1, Grade A, with pressure ranges of 0-1500 psi for 3/8-inch and smaller anchors and 0-6000 psi for 1/2-inch and larger anchors.-) The load-pressure relationship for the jack shall be verified before initial use and at 1-year intervals thereafter. The gauges used with the jack or the jack-gauge as a unit shall be calibrated every 2 months or every 100 anchors tests, whichever occurs first, but calibration is not required more frequently 1 than every 2 weeks during continuing anchor installations. The jack and/or gauge shall be l recalibrated any time there is a question as to jack operation or gauge accuracy. I If subsequent recalibration of a jack or gauge indicates l that the actual proof loads were less than 90 percent'of

4..

~ the required proof loads, additional testing may be required. Instructions for additional tests shall be t-p obtained from the cognizant engineer. ) 6 I, u. L r

7: l, 's Page 6 {- MAI-4 7.2 SSDs (Continued) 7.2.3 Inspection Procedure - Prior to proof load testing, the anchor selected shall be inspected for size, perpendicu-a j~ 1arity, recess depth, and cone depth. (If the initial measurement of any of these falls outside the acceptable i range, an adjacent anchor shall be inspected and pull { .testec.) Its number on the data sheet shall be suffixed with an A to indicate that it is an adjacent anchor and not counted in the original number of anchors to be tested. Instructions and permissible corrective measures are as follows. + 7.2.3.1 Size - The SSD shall be checked to see that it is the i proper size as specified on the Design drawing. Usihg i { 1arger size SSDs or substituting wedge bolts is permissible, but must be specified by the cognizant I. f~ engineer on the data sheet, f 7.2.3.2 Perpendicularity - The SSD shall be checked to determine ~ if the anchor is installed to within 10* of l perpendicular. If the anchor exceeds this limit, it is 5 to be rejected and noted on the data shee.t for disposition by the cognizant engineer. An adjacent anchor shall be inspected and pull tested. ( W 4 .o L

+ ) 4 I t Page 7 ,r - MAI-4 SIP 2 G EIS 7.2 SSDs (continued) 7.2.3.3 Recess Deotn - Measure the distance from the :oncrete ~ surface to the exposed enu of the anchor shell..Tha acceptable range is 0 to 1/4-inches measured to the nearest 1/16-inch. The shell capnot project above the t i surface any amount. ~ If an SSD sr.chor is ir~ stall,?d and the sdrfaqe latet scarified, the recess depth shall be measured from the origina' surface. If it cannot be verified as being recessed less then the 1/4-inch maximum depth from the original concrete surface, or it it is recessed core than 1/4-inch from the original rurface. the anchor is to be pull tested. Anchors installed after scarification shall i be measured from the scarified surface. In either case } the shell cannot project above the scarified surface. f. ( Jagged edges on the exposed end of the shell which f~ protrude from the concrete surface may be ground off provided grinding does not extend beyor.d the normal I break-off surface. \\l If any point on the end of the shell projects above the \\ concrete surface, the anchor can be reset, but only once. If the reset anchor still extends above the concrete, the anchor is to be removed and the hole drilled deeper and a new snchor installed. The new anchor and adjacent anchor shall then be inspected and 4 4, pull tested. L. ~ .7

.-'\\ s Page 8 1-MAI-4 [' SSDs (Continued) SEP 2 6 t??S 7.2 L l-7.2.3.3 (Continued) i If the anchor is recessed more than 1/4-inch, it is [j permissible for ths anchor to be removed and steel slugs installed in the hcie to set the new anchor at the proper i' depth. 'Ihe new anchor ar.d an adjacent anchor shall then I be reinspected and pull tested. } 7.2.3.4 Cene Exparder Depth - tfeasure the distance frem the f exposed end of the anchor shell to the accessible end of the cone expander. The acceptable range is given in the following table 7.2.3.4 CONF. EXPAl@SR DEPTH TABLE 7.2.3,4 v 7-ki ' Size (Inches) 1/4 5/16 3/8 1/2 5/8 3/4 7/8 f' J / Hinimca[Distahce(Inches) 7/16 9/16 5/8 1 1-1/8 1-3/4 2 Haximum Distance (Incnes) 11/10 13/16 15/16 1-3/8 1-1/2 2-1/3 2-1/2 If the cone expander depth is greater than the maximum, f.he anchor may ca reset. If af ter resetting on::e it Ic L. not within the range, the anchor is a reject and must be removed and replaced with a new anchor. The new anchor i L and an adjacer.t anchor must be inspected and pull tested. If the cone expander depth is less than the cone depth table, the anchor must be removed and a new anchor (, installed. The new anenor and on adjacent anchor must be inspected and pull tested. 7

p-I s Page 9 T' MAI-4 7.2 SSDs (Continued) I 7.2.4 Proof Loading Procedure f 7.2.4.1 The ram and gauge shall be obtained from the toolroom and I the calibration due date on the gauge and ram shall be i-r j verified to be later than the date of use and recorded on the data sheet along with the H and TZ number of each. t 7.2.4.2 The proof load shall be specified on the data sheet by cognizant engineer and should agree with the proof load 3 table. The gauge pressure should be selected frem the calibration report for the ram-gauge to be used and recorded on the data sheet by the QC Inspector.. i 3 e PROOF LOAD TABLE - 7.2.4.2 I l 1/2 l5/8 f3/4 7/8 Bolt Size (Inches) 1/4 5/16 3/8 I g l(, I i l4000 Prcof Load (1bs.) 900 1700 l2200 -5400 j7600 8300 i 1 i l i O I l 1 l L Iw r L 4 .L L

t t Page 10 / MAI-4 7.2 SSDs (Continued) 1-l 7.2.4.3 The threaded rod shall be inserted in the anchor or c upled to the bolt of the anchor. The hydraulic jack r I and bearing device shall be centered over the threaded rod and adjusted until the threaded rod is axially t concentric with the center hole of the jack. A nut shall r be put on the threaded rod and snugged against the ram of the jack. Load shall be applied without shock and as uniformly as practical to the proof load given on the data sheet by jacking to the pressure previously determined and recorded on the d.ata sheet. 7.2.4.4 If the anchor slips, it can be reset once and retested. (An adjacent anchor shall be inspected and pull tested.) I If the anchor slips again, it can be removed and a new anchor installed and inspected and pull tested. If this anchor slips, it shall be rejected and noted on the data ~ sheet for cognizant engineer disposition. If the \\ adjacent anchor slips, is reset once and again slips, the 1 entire lot shall be pull tested. 7.2.5 Side Cover Distances - SSDs (Applies to all anchors in-L- the lot) NOTE: The minimum side cover distances given in this section shall be applied to the location of all SSDs unless an OE approved drawing, which shows both the anchor and the concrete edge, specifically calls for a smaller side cover distance. Attachment location tolerances shall not be used to reduce the minimum side cover I distances. If the drawing calls for an anchor 1 closer to an edge than the minimum, and the edge is not shown on the same drawing, the anchor shall g be rejected and noted on the data sheet for .[, cognizant engineer disposition.

r I Page 11 l' MAI-4 7.2 SSDs (Continued) ( 7.2.5.1 The minimum side cover distance between an expansion j anchor and a' concrete edge shall be 10 nominal bolt diameters. Outside corners, expansion joints, contraction joints, unreinforced construction joints, pipe sleeves, conduits, and similar features shall be r considered to be concrete edges. Penetrations for pipes, sleeves, conduits, and similar circular features shall not be considered concrete edges.i-f the diameter of the penetration is less than the clear distance between the anchor and the penetration. 7.2.6 Soacing between an SSD and another anchor, strip insert, or plate. (Applies to all anchors in the lot) NOTE: The minimum spacing between anchors given in this section shall be applied unless an OE approved drawing, which shows both anchors, specifically calls for a closer spacing. Attachment location tolerances shall not be used to reduce the minimum spacings. 9 If a drawing calls for an anchor closer to another anchor, plate, or strip insert than the minimum, and the I other anchorage is not shown on the same drawing, the anchor shall be' rejected and noted on the data sheet for t cognizant engineer disposition. l' The following spacings do not apply to the spacings' between a working anchor and an abandoned anchor or the I hole for an abandoned anchor. The minimum clear distance I between the hole for the working anchor and the hole for the abandoned anchor shall be equal to the diameter of I the larger of the two holes. The distance may be reduced i_ one-half if the abandoned anchor is removed from the hole and the hole grouted or dry packed. I. L p

\\- t Page 12 /- MAI-4 7.2 SSDs (Continued) 7.2.6.1 The minimum spacing between adjacent expansion anchors and between expansion anchors and strip inserts, [ thru-bolts, embedded bolts, grouted anchors, cas.t-in-place anchor bolts, threaded inserts, or i s-' undercut anchors shall be as given in Table 7.2.6 Table 7.2.6 Minimum Spacing (Inches) b. I EXPANSION SHELL ANCHORS (SSD) Size (Inches) I 1/4 5/16 3/8 1/2 5/8 3/4 7/8 l STRIP INSERT (Edge) l 4-1/2 5 5 5-1/2 6 6-1/2 6-1/2 EMBEDDED PL (Edge) 6-1/2 7 7 7-1/2 8 8-1/2 8-1/2 ' ANCHOR BOLT (S )* 1-1/2 2 2' 2-1/2 ' 3* 3-1/2 3-1/2 '. 8 8 7/8 5 5-1/2 5-1/2 6 6-1/2 7 7 3/4

4-1/2 5

5-1/2 6 6 6-1/2 7 EXPANSION 5/8 i 4 4-1/2 5 5-1/2 5-1/2 6 6-1/2 l SHELL i 1/2 4 4-1/2 4-1/2 5 5-1/2 6 6 j c t ANCHORS 3/8 3-1/2 4 4 4-1/2 5 5-1/2 5-1/2 8 5/16 3 3-1/2 4 4-1/2 4-1/2 5 5-1/2 1/4 3 3 3-1/2 4 4 4-1/2 5 o t' i 1-1/4 7 7-1/2 8 8-1/2 8-1/2 9 9-1/2 1 l6 6-1/2 7 7-1/2 7-1/2 8 8-1/2 7/8 l 6 6-1/2 6-1/2 7 7-1/2 8 8 j j iWEDGE 3/4 5-1/2 5-1/2 6-1/2 7 7 7-1/2 8 BOLTS 5/8 5 5-1/2 5-1/2 6 6-1/2 7 7 1/2

4-1/2 5

5 5-1/2 6 6-1/2 6-1/2 I 3/8 l 3-1/2 4 4 4-1/2 5 5-1/2 5-1/2 1/4 3 3-1/2 3-1/2 4 4-1/2 5 5 i i j ' Applies to undercut anchors, cast-in-place anchor bolts, grouted anchors, L. thru-bolts, and threaded inserts. ' Minimum spacing equals the tabulated value plus 6 bolt diameters. (Ten anchor bolt diameters for A 325, A 490, and other high-strength steels, and undercut anchors.) ~ EXAMPLE: Minimum spacing between a 3/4-inch SSD anchor and 1-1/2 inch A 307 grouted anchor equala 3-1/2 + 6(1-1/2) = 12-1/2 inches. L -18 W s

L Page 13 (' MAI-4 7.2 SSDs (Continued) I 7.2.6.2 The minimum spacings between expansion anchors and i embedded plates or strip inserts provided in Table 7.2.6 l may be reduced to as little as 2 inches for embedded plates and 1 inch for strip inserts, provided at least 18 i inches is maintained between the anchor and any' attachment [ welded to the embedded plate or between the anchor and any bolt installed into the strip insert. ( j. 7.2.6.3 If expansion anchors are used to anchor plates which are partially supported by welds to embedded plates, the 18-inch distance applies only to the distance between the [' expansion anchors and other attachments welded to the embedded plate. 7.2.7 Inspection Procedure for Bolts for Expansion Shell Anchors (Applies to all base plates in lot) [.' One bolt in each baseplate shall be selected at random for i inspection of tightness, base plate hole size, and bolt length. The bolt tightness shall be acceptable if the bolt cannot be turned with the fingers. If the bolt can be turned with the 7 i '.' fingers, the tightness of all bolts in the base plate shall be i 4 checked. Remove one bolt and measure the bolt hole diameter to l L-the nearest 1/16-inch. The maximum hole diameter shall be 1/16-inch larger than the nominal bolt diameter unless specified otherwise on the Design drawing. If the hole diameter is j unacceptable, all bolt holes in the plate shall be checked. The l bolt shall then be reinserted in the anchor without turning (See l 4-l Fig. 7.2.7). l l l* L-

.p t Page 14 (- MAI-4 7.2 SSDs (Continued) (~ 7.2.7 (Continued) i If the distance betw'een the bolthead bearing surface and the attachment or washer, if used, is less than one nominal bolt diameter minus 1/16-inch, the bolt shall be replaced with a bolt of sufficient length to satisfy the requirements, and all [ remaining bolts in the attachment shall be checked. If the distance is one nominal bolt diameter minus 1/16-inch or greater, the bolt shall be reinstalled. n o TT [ ]Y Thread W $. Engagement i 1 i 3:. 1;7 u..,. ,.e,4 s o..

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., e ,e A j: j! I t, A f 6, a.s e i 2; - a j c* ~.- l a.i k.' ' r P L ), .: ".., e a P. P" 3 e I L FIG. 7.2.7 n. L 7.2.8 Inspection of Cap Between Baseplate and Concrete Surface (See 7.5)

Page 15 /~ MAI-4 l SEP 2 6 1985 7.3 Wedge Bolts The QC inspector shall perform the following inspections / verifications for each wedge bolt in the lot. If the bolt fails to meet the acceptance criteria given, it shall be rejected and noted on the data sheet for cognizant engineer disposition. Document inspections on WB Data Sheet - Attach =ent B. ~ 7. 3.'1 Size - the size (diameter and length) of.the WB shall be verified to be in accordance with the Design drawing. Table 7.3.2 l. specifies the lengths of regular and long wedge bolts. Long wedge bolts shall be stamped with the letter L prior to installation. The length of wedge bolts will be specified on the Design drawing and indicated on the data sheet as regular or long. The inspector shall use this marking to determine if the { proper length WB is installed. It is permissible to use long wedge bolts in place of regular provided they are specified by the cognizant engineer on the data sheet (their depth must not exceed 2/3 of the concrete thickness). \\ 7.3.2 Attachment 'Ihickness/ Bolt length - The attachment thickness shall I g be verified to be within the limits of Table 7.3.2. I I l

i.,

Table 7.3.2 All dimensions in inches Wedge Bolt Diameter 1/4 3/8 1/2 5/8 3/4 7/8 1 1-1/4 Regular WB (Length) 3 3-1/2 5-1/2 6 8-1/2 10 9 12 I k ' Maximum Attachment Thickness 1 7/8 1-1/4 7/8 1-3/4 1-1/2 1 1-3/4 L Long WB (Length) 5 7 8-1/2 10 12 g Maximum Attachment Thickness 2-3/8 2-3/4 3-3/8 3-1/4 4 .hs y

t Page 16 MAI-4 7.3 Wedge Bolts (Continued) ? 7.3.3 Perpendicularity - The wedge bolt shall be checked to determine if it is installed to within 10* of perpendicular. i 7.3.4 Side Cover Distances - Wedge Bolts t NOTE: The minimum side cover distances given in this section shall be applied to the location of wedge bolts unless an OE approved drawing, which shows both the anchor and the concrete edge, specifically calls for a smaller side cover distance. Attachment location tolerances shall not be used I to reduce the minimum side cover distances. 7.3.4.1 The minimum side cover distance between a wedge bolt and a concrete edge shall be 10 nominal bolt diameters. Outside corners, expansion joints, contraction joints, unreinforced construction joints, pipe sleeves, conduits, and similar features shall be considered to be concrete edges. Penetrations for pipes, sleeves, r conduits, and similar circular features shall not be considered l-concrete edges if the diameter of the penetration is less than the j. clear distance between the anchor and the penetration. 7.3.5 Spacing between a wedge bolt and another anchor, strip insert, or 1" - plate. .p NOTE: The minimum spacing between anchors given in this section a; shall be applied unless an OE approved drawing, which shows both anchors, specifically calls for a closer spacing. Attachmer.t location tolerances shall not be used to reduce [.. the minimum spacings. If a drawing calls for a wedge bolt closer to another anchor, plate, or strip insert than the minimum, and the other anchorage is not shown on the same i drawing, the anchor shall be rejected and noted on the data sheet for cognizant engineer disposition. The following spacings do not apply to the spacings between-a working anchor and an abandoned anchor or the hole for an i abandoned anchor, n e minimum clear distance between the hole for the working anchor and the hole for the abandoned anchor shall be equal to the diameter of the larger of the two holes. D e distance may be reduced to the point where the holes for the working and abandoned anchors conincide if t the abandoned hole is grouted or dry packed. t L

e i, ' Page 17 MAI-4 r-7.3 Wedge Bolts (Continued) t DCC 0 3 E5 7.3.5.1 The minimum spacing between adjacent wedge bolts and,between wedge bolts and strip inserts, thru-bolts, embedded bolts, grouted anchors, cast-in-place anchor bolts, undercuts, or threaded inserts shall be as i given Table 7.3.5.1 f Table 7.3.5.1 WEDGE BOLT ANCHORS (WB) i Size (Inches) 1/4 3/8 1/2 5/8 3/4 7/8 1 1-1/4 i STRIP INSERT (Edge) 4-1/2 5 6 6-1/2 7-1/2 7-1/2 8 9 EMBEDDED PL (Edge) 6-1/2 7 8 8-1/2 9-1/2 9-1/2 10 11 2 ANCHOR BOLT ((1 1-1/21 21 31 3-1/21 4-1/21 4-1/21 51 61 1-1/4 7-1/2 7-1/2 8-1/2 9 9-1/2 10, 10 11-1/2 1 6-1/2 7 8 8-1/2 9 9-1/2 9-1/2 10 7/8 6 6-1/2 7-1/2 8 9 9 9-1/2 10 WEDGE 3/4 6 6-1/2 7-1/2 8 8-1/2 9 9 9-1/2 BOLTS 5/8 5 5-1/2 6-1/2 7 8 8 8-1/2 9 1/2 4-1/2 4-1/2 6 6-1/2 7-1/2 7-1/2 8 8-1/2 3/8 3-1/2 4 4-1/2 5-1/2 6-1/2 6-1/2 7 7-1/2 1/4 3 3-1/2 4-1/2 5 6 6 6-1/2 7-1/2 7/8 5 5-1/2 6-1/2 7 8 8 8-1/2 9-1/2 3/4 5 5-1/2 6-1/2 7 7-1/2 8 8 9 5/8 4-1/2 5 6 6-1/2 7 7-1/2 7-1/2 8-1/2 1/2 4 4-1/2 5-1/2 6 7 7 7-1/2 8-1/2 SSD's 3/8 3-1/2 4 5 5-1/2 6-1/2 6-1/2 7 8 5/16 3-1/2 4 5 5-1/2 5-1/2 6-1/2 6-1/2 7-1/2 1/4 3 3-1/2 4-1/2 5 5-1/2 6 6 7 AMinimum spacing equals the tabulated value plus 6 bolt diameters. (Ten anchor bolt diameters for A 325, A 490, and other high-strength steels including undercut anchors.) EIAMPLE: Minimum spacing between a 3/4 inch wedge bolt anchor and 1-1/2 inch A 307 gronted anchor equals 4-1/2 + 6(1-1/2) = 13-1/? inches. 2Applies to cast-in-place anchor bolts, grouted anchors, thru-bolts, threaded inserts, t and undercut anchors. 7.3.5.2 The minimum spacing between wedge bolts and embedded plates or strip inserts provided in Table 7.3.5.1 may be reduced to as little as 2 inches for embedded plates and 1 inch for strip inserts, provided at least 18 inches is maintained between the anchor and any attachment welded to the embedded plate or between the anchor and any bolt g l installed into the strip insert. c .L< 8 Revision

i' 4 Page 18 f MAI-4 SEP 2 5 1n5 7.3 Wedge Bolts (Continued) 7.3.5.3 If wedge bolts are used to anchor plates which are partially. supported by welds to embedded plates, the 18-inch distance applies only to the distance between the expansion anchors and other attachments welded to the embedded p'l$te. 7.3.6 Torauing } 7.3.6.1 The QC inspectur shall record the torque wrench number and the calibration due date on the data sheet. He,shall also verify that the calibration date is acceptable and the the torque to be applied is between 20 and 100 percent of the wrench range. 7.3.6.2 The QC inspector shall witness the torquing and verify that is f it applied uniformly, without shock, and to the minimum value specified on the data sheet which should agree with Table i 7.3.6.2. It is permissible for the nut to not turn indicating that the bolt is already torqued. I TABLE 7.3.6.2 1 l Bolt Diameter (Inches) 1/4 3/8 1/2 5/8 3/4 1 1-1/4 (. Minimum Torque (ft-lbs) 5 15 40 70 120 240 400 w L. L

1 Page 19' o. MAI-4 7.3 Wedge Bolts (Continued) I 7.3.7 Projection After torquing, the projection of the anchors above the atlachment shall be measured. If the projection of the anchor above the attachment exceeds the maximumprojectionspecifiedin,3able7.3.7, the anchor projection shall be marked on the data sheet t,. as a reject but the anchor may be loosened, i repositioned, and retorqued again. If the projection is still unacceptable, the anchor is a reject and must be replaced. The nut must have at minimum full thread engagement and may be torqued ( beyond the minimum to achieve this. i" Table 7.3.7 Bolt Diameter (Inches) 1/4 3/8 1/2 5/8 3/4 7/8 1 1-1/4 Maximum' Projection (Inches) 1/2 3/4 1 1-1/4 1-1/2 1-3/4 2 2-1/2 's 7.3.8 Insoection of Gao Between Baseolate and Concrete Surface (See 7.5) i f a' t m s_ L li.

i Page 20 f MAI-4 SEP ll 6 1333 7.4 Undercut Anchors 7.4.1 General - All undercut anchcrs require foremen and QC inspections which are to be docu$:ented on Attachhent C. Instructions for these inspections follow in sections 7.4.2 and 7.4.3. Figure 7.4.1 shows a typical undercut anchor and the two types of r i installation. Em rnal salt r,t Washer 7 Upper M auloom nW Sleeve sleeve / Nut pacer Steeve (Optional) L f b!!TM i l N l [ [ Sleeve Length l g Anchor Length =, l 3/4 x 135 has Internal Hex NUT HARDENED %ASHER h f -p - PL A TE PLATE Projection (( \\ liV/A slo f ' f f/5 V///////l 'ATTACHVENT V//////i U

f. * :h _ ZHICKNESS THICKNESSjr

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  • jGROtJT PAD ArrACwEN
    • P,*

,p, =y*,.. .b. =,. s.- .s 0*. p* SPACE SLEEW 1.. .,- (OPTIONAL) .b A. a, 3, ?...,, b. . A. *y p '.. p. ( '.-) \\' : *. *

  • b. *,* *)

\\ b' . >.. M,..e :. *.b. g%>,: * [' . TYPE I [ NUT f B HARDENED WASHER g I 9 f dE PLATE WASHER - . [ PLATE l { PLATE. 2 Proj. { \\ L h l'//////l ' ATTACHMENT - _V/////A t'/) /

.-}. : V.K }HICKNE SS p.

ArrACuvenr >+o. .. s....>.s-THICKNESS-4 ..A** 9 *., ..g* GROUT PAD m , 3., .. p ,;,A . s, e., u , f..

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  • l o.g & *. 4 -

..o.. TYPE II { FIG. 7.4.1 en

Page 21 2-MAI-4 SEp 2 6 033 7.4 Undercut Anchors (Continued) i' 7.4.2 Foreman Inspections - The foreman shall perform the following inspections or measu'rements and verify their acceptability by signing the data sheet. The cognizant engineer will provide the acceptance criteria for each measurement on the data sheet. 7.4.2.1 Anchor I.ength & Sleeve Length - The foreman shall measure the sleeve length and anchor length and record on the data sheet. He shall verify that it conforms to t.ie anchor length and sleeve length specified on the data sheet. Permissible sleeve lengths are given in Table 7.4.3.3. 7.4.2.2 Drill Bit Diameter - Prior to drilling the primary hole, the foreman shall measure the drill bit diameter i to verify that it is within the range given on data sheet by the cognizant engineer. A drill bit diameter less than that specified is acceptable, provided the anchor inserts easily into the hole. Table 7.4.2.4 includes acceptable drill bit diameters. l 7.4.2.3 Primary Hole Depth - The foremin shall measure the i i primary hole depth and verify that it meets the minimum specified on the data sheet. The hole depth is . measured from the concrete surface for Type I ~ installations and from the plate surface for Type II. l The minimum primary hole depth is equal to the sleeve length plus 3/4" for 1/2", 5/8", and 3/4" anchors and plus 2" for 1" and 1-1/4" anchors. l n. l

l' f Page 22 MAI-4 i SEP 2 6 1955 7.4 Undercut Anchors (Continued) 7.4.2.4 Undercutting Tool Diameter - The foreman shall measure the undercutting todi cutter diameter before and after use as shown below in Figure 7.4.2.4 (dimension D) and verify that it is within the range given on the data sheet which should agree with Table 7.4.2.4 l' TABLE 7.4.2.4 (DIMENSIONS GIVEN IN INCHE'S) ! Nominal Primary i UC Tool

Anchor i

Hole l Diameter (D) Diameter Drill Bit (From Fig 7.4.2.4) Diameter 1/2 0.815 + 0.030 1.120 +.010 [ .030 5/8 t 0.945 + 0.030 1.176 +.010 j .030 3/4 1.142.+ 0.030 1.550 +.010 i .040 1 1.660 + 0.030 2.275 +.010 .050 1-1/4 2.035 + 0.030 2.770 +.010 .060 i D -5 _1 y Bottom View FIG 7.4.2.4 e P

(' f Page 23 MAI-4 i. SEP 2 0 1935 7.4 Undercut Anchors (Continued) 7.4.2.5 Undercutting Tool Length - The foreman shall verify that the undercutting todl length from the base to the tip of the cutter (Dim A-Fig 7.4.2.5) is the same as the anchor sleeve length. This can be accomplished without measuring by physically comparing the two as shown below in Figure [ 7.4.2.5. D.$ 1 PIN I N l l (I I ^~ fa r r f f A l A = Anchor i Sleeve Length _L Y T3 i ( L l FIG 7.4.2.5 7.4.2.6 Bottoming Out of Pins - The foreman shall verify that the ' undercutting tool pins are bottomed out as shown in Fig 7.4.2.5 when the undercutting operation is complete. !L l

Page 24 7-1 MAI-4 SEp 2 61335 7.4 Undercut Anchors (Continued) 7.4.3 OC Inspections - The QC inspector shall inspect each undercut anchor in the lot tb the following requirements and verify acceptability by signing the data sheet. 7.4.3.1 Site - The QC inspector shall veri,fy,th5t the anchor installed is the diameter and length that is specified f on the Design drawing. The length of the anchor can be } determined by the length code stamped in the end of the bolt and Table 7.4.3.1. [ Table 7.4.3.1 I ( Bolt Total Length i l. Size Length Code 1/2 10-1/4 2 12-1/4 4 14-1/4 6 5/8 13 3 15 5 I 17 7 3/4 13-1/2 No marking (internal hex) 15-1/2 2 17-1/2 4 1 21-1/2 5 i 23-1/2 7 1-1/4 22 '2 25 5 s. [ 7.4.3.2 Spacing - The allowable spacing between undercut t , anchors is given in Table 7.4.3.2.A for Type I and II installations. This shall apply unless an OE approved [ drawing shows both anchors with closer spacing. i e. t b gnum e . ~. - - _,._7

i i Page 25 c-MAI-4 7.4 Undercut Anchors (Continued) SEP 2 6 1335 7.4.3.2 Spacing (Continued) Table 7.4.3.2.A i Anchor Spacing Data All Dimensions in Inches BOLT MinimumZ SIZE Lengthl Sp1cing i 1/2 14-1/4 6 j i 12-1/4 6 10-1/4 6 5/8 17 8 l 15 8 13 8 3/4 17-1/2 12 15-1/2 12 13-1/2 12 1 23-1/2 12 i 21-1/2 12 1-1/4 25 24 I 22 24 i l Notes: 1. Total length of anchor. 2. The spacing is measured from centerline to centerline. The minimum spacing between different sizes of undercut anchors shall be determined by tak.ing an average of their minimum required spacings. The minimum spacing between undercut anchors and SSDs and wedge bolts shall be determined from Table 7.4.3.2.B. Table 7.4.3.2.B MINIMUM SPACING (INCHES) f EXPANSION SHELL ANCHORS (SSD) 3 I5/16 l I g SSD SIZE 1/4 3/8 1/2 5/8 3/4 7/8

2

[UndercutAnchor 1-1/21 21 f3-1/2 1 2-1/21 31 3-1/21 1 Spacing i [, WEDGE BOLT ANCHORS (WB) ] l l l l l l l' WB SIZE 1/4 3/8 !1/2 !5/8 3/4 7/8 1 1-1/4

UndercutAnchor!1-1/2 l4-1/2 1

21 31 3-1/21 4-1/21 1 51 61 i Spacing i e i lHinimum spacing equals the tabulated value plus 10 undercut bolt diameters. EXAMPLE: Minimum spacing between a 3/4-inch wedge bolt anchor and a 1/2-inch undercut equals 4-1/2" + 10 (1/2) = 4-1/2 + 5 = 9-1/2". e as k

t;. Page 26 MAI-4 SEP 2 6 1935 i 7.4 Undercut Anchors (Continued) 7.4.3.2 Spacing (Continued) t' The minimum spacing between undercut anchors and cast-in-place anchors shall be 3/4 of the sum of their embedded depths. Theminimumspacingbetweenundercutancho'r[andembedded plates or strip inserts shall be 3/4 of the undercut anchor depth (sleeve length for Type I installation) plus six inches. This spacing may be reduced to as little as two inches for embedded plates and one inch for strip inserts provided at least 18 inches is maintained between the UC and any attachment welded to the embedded plate or any bolt installed in the strip e insert. 7.4.3.3 Ed2e Distance - The acceptable edge distances are given in Table 7.4.3.3.A for Type I installations and is dependent on anchor length and sleeve length. Edge distances for Type II i F installations are given in Table 7.4.3.3.B and are dependent on .{ anchor length, sleeve length, and attachment thickness. Outside corners, expansion joints, contraction joints, . unreinforced construction joints, pipe sleeves, conduits, and ] similar features shall be considered to be concrete edges. This table shall apply unless an OE approved drawing shows both the anc' hor and the edge with a distance less than the table. l Li L, {

L I l Page 27 [- MAI-4 7.4 Undercut Anchors (Continued) SEP 2 6 1335 Table 7.4.3.3A Tyoe I Installations i i Minimum Bolt Anchor

  • Sleeve' Edge Size I

Length I Length Distance j 1/2 14-1/4 10 8-1/2 12-1/4 8 6-1/2 I, 10-1/4 6 5 8 5/8 17 12 10-1/2 4 t 15 10 8-1/2 ,j 13 8 6-1/2 i, 3/4 17-1/2 13 13 .M 15-1/2 11 11 . '8 13-1/2 9-1/4 9 ^3 1 23-1/2 18 17 m 21-1/2 18 17 1-1/4 25 18 21 22 18 21 o y 1/2 12-1/4 10 8-1/2 S/8 15 12 10-1/2 !]3 g 3/4 17-1/2 12-3/4 12-1/2 mj 15-1/2 12-3/4 12-1/2 J4 Table 7.4.3.3 Type II Installations i Minimum Anchor' Sleeve

  • Attachment
  • Edge
Bolt, Sine Length Lensth Thickness Distance 1/2 14-1/4 10 2 and under 6-1/2 t

f 14-1/4 10 2 to 4 5 r u ,I 12-1/4 8 2 and under 5 ~ j 5/8 17 12 2 and under 8-1/2 17 12 2 to 4 6-1/2 4;- y 15 10 2 and under 6-1/2 y 3/4 17-1/2 13 2 and under 11 e i 17-1/2 13 2 to 4 9 l [* m 15-1/2 11 2 and under 9 1/2 12-1/4 10 4 and under 8-1/2 j c m 5/8 15 12 4 and under 10-1/2 I' EE 3/4 17-1/2 12-3/4 4 and under 12-1/2 hj 15-1/2 12-3/4 4 and under 12-1/2 I EE

b. -

z Notes: 1. All dimensions in inches. 2. Total length of anchor. i. 3. Equal to the length of the upper and expansion sleeves. (R2fer to FIG 7.4.1) 4 Measured from the structural concrete surface to the outward face of the plate.

r Page 28 MAI-4 l 7.4 Undercut Anchors (Continued) SEP 2 61335 7.4.3.4 Torquing - The QC inspector shall verify the torquing of 1/2", 6.' 5/8",and3/4"anegorstothevaluesgiveninTable7.4.3.4 Record the M&TE No. of the to:que wrench and record and verify that the calibration due date is acceptable. I b i Table 7.4.3.4 ANCHOR TENSIONING LOADS GR TORQUES p-l 3 Nominal Anchor Diameter Load and Torque and g I (Inches) Tolerance Tolerance (Kips) (Foot -pounds) ! i 1/2 12 A0.3 85 +10 g I 5/8 19 +0.4 i ~ 200 +15 ~ l 3/4 28 +0.6 350 +20 i. i i 1 51 +0.8 l i i1-1/4 84 10 l 1 I i I 7.4.3.5 Tension Ioaning - If tension loading is used to expand the [ shell, the QC inspector chall verify that the load is applied to the value given by the cognizant engineer on the data sheet I which should agree with Table 7.4.3.4. The QC inspector shall record the gauge M&TE No. and calibration due date on the data h. sheet. The cognizant engineer will specify the appropriate gauge pressure on the data sheet. [ 7.4.3.6 Projections - The QC inspector shall measure tne projection and 'rerify that it is within the limits of Table 7.4.3.5. For Type I installations, the projection is measured from the structural concrete surface to the top of the anchor. Fcr Type II installations, it is measured from the plate surface to the top of the anchor. t

'j' Page 28 MAI-4 7.4 Undercut Anchors (Continueo) SEP 2 6 1335 7.4.3.4 Torouing - The QC inspector shall verify the torquing of 1/2", -l 5/8, and 3/4" anc, hors to the values given in Table 7.4.3.4 Recorr) the MSTE No. of the torque wrench and record and verify that the calibration due date is acceptable. l Table 7.4.3.4 ANCHOR TENS!0NING LOADS OR TORQUES Nominal Ancnor Diameter Load tr.d Torque and (Inches) Tolerance Tolerance (Kips) (Foot-pounds) 1/2 12 0 33 85 110 5/8 19 014 200 115 3/4 28 +0.6 350 +20 1 51 10.8 1-1/4 84 +1.0 7.4.3.5 Tension Loading - If tension loading is used to expand the '. I g shell, the QC inspector shall verify that the load is appi;ed to the value given by the cognizant ent,ineer on the data sheet 1. which should agree with Table 7.4.3.4 The QC inspector shall y- { record the gauge HSTE No. and calibration due date on the data sheet. The cognizant engineer will specify the appropriate L.) gauge pressure on the (lata sheet. j 7.4.3.6 Projections - The QC inspector shall measure the projection and I verify that it is within the limits of Table 7.4.3.5. For Type I installations, the projection ts measured frert 2he structural concrete surface to the top of the anchot. For Type II installations, it is ceasured from the plate surface to the top t. of the anchor. Le ~.

~ l Page 29 MAI-4 7.4 Undercut Anchors (Continued) e ( TABLE 7.4.3.5 i LENGTH CODES AND PROJECTIONS (ALL DISENSIONS IN INCHES) Solt' l

Sleeve Length Projection' Size j Length Length Code Projection Tolerance 1/2 10-1/4 l6 2

4-1/4 12-1/4

8 4

4-1/4 1 /2 inch : 1 r 14-1/4 10 6 4-1/4 on all l 3 5 projections' m 5/8 13 8 i e 15 l 10 { 5 t 5 i 5 17 12 7 5 [ 5 3/4 13-1/2 9-1/4 !(internal hex) 4-1/4 [ 15-1/2 11 1 2

4/1/2 i

c 17-1/2 13 i 4 4-1/2 ^ 1 21-1/2

18 S

3-1/2 j$ i 23-1/2 18 7 5-1/2 1-1/4. 22 18 2 4 } 25 [ 18 5 7 w 1/2 12-1/4 10 l 4 2-1/4 5 i Q 5/8 15 12 5 3 c 3/4 15-1/2 I12-3/4 } 2 2-3/4 c t t f g 4 l g 17-1/2 !12-3/4 4 4-3/4 { l m = 2: 1. If the projection is outside this range, the anchor shall be rejected and g k2 i 1 the cognizant engineer contacted to specify proof loading requirements or f other corrective action. L. 7.4.3.7 Inspection of Gap Between Baseplate and Concrete Surface s (See 7.5) L

Page 30 MAI-4 SEP 2 6 1985 7.5 Insoection of Gaos Between Attachments and the Concrete Surfaces (Does j not apply to grouted base plates) 7.5.1 All completed attachments installed with SSDs, VBs, or UC I anchors shall be inspected for excessive gaps between the attachment and the concrete surface, by attempting to touch all anchors which are adjacent to an edge or cortler of the f-attachment or of a baseplate for the attachment with a metal '1 strip inserted from the perimeter of the attachment. If any l' gap is wide enough to permit the strip to be, pushed under the attach =ent until it touches the anchor from two directions approximately 90 degrees apart, the gap is unacceptable. Additional tightening of bolts is not permitted to cQrrect excessive gaps. [ 7.5,2 The actual thickness of the :cetal strip used for checking gaps l shall be between 90 and 100 percent of the stated cAximum gap f width for the attachment. Unicss otherwise called for, the y maximum gap shall be 1/8-inch for attachment ~s with 1/2-inch and j smaller anchers and 3/16-inch for larger anchors. The width of { the strip shall be 1/2-inch. ~ 7.6 REPORTING - The Cognizant Engineer chall use Attachment D to transmit a l ' copy of the MAI-A Data Sheets to the responcible OE Engineer at the completion of work instructions. L 7.7 A'ITACHMENTS 7.7.1 Attachment A - Expansion Shell Anchors - SSDs Data Sheet 7.7.2 Attachment B - Wedge Bolt Anchors Data Slheet 7.7.3 Attachment C - Undercut Anchors Data Sheet L-

7. 7. t.

Attachment D - Data Transmittal Sheet 1.

Prge 31 MAI-4 ATTACWENT A gg 611MS D MA P. THEFT EXPA.tSION Shill ANCHO#S - SSDs / C) F.Y gig.ENGir (E) 60RK PLAN lMR 880. 0 J (E) DESCAIP71GW Or LOT (I! DRAWINGS ___ (E) A?fGt09 S:IE (E) P COF LOA 3 GAUGE PRESI (EliUANT1TV JACK r4TE NO. GAUGE re.TE NC. CAL CUE DATE TOTAL AN" HOR HLG. PG40ER T3 BE IASPECTED ANO PULL TESTED SIZE ~ IPER9ENT.ICt'L AR J IRECESS C6NICEFTH P'ULINSY~ ~~ ILi p 171L2) Q J 2,1 D f 7 Zy(Retord 1 ( U 41 NO. A 2 M.CEP T REJECI' A R ( Recore A R A R3 (Record) QCD1hl g ItiUIAL Depth 1 __ Sitg_ Load) OC INSFECTOR DATE I o 1 EI'E L _ J . ItalilAL i RLS E1_ -. a._ IN!II AL, ._s. I RE 5E T_ IMIII.AL RESEI.__ l INillA,L biE QU E5(O'GENCRDISPCSITi0li - ACCEPTABLE. R - REJECT 'REQu!PE.S A0JACit6T AKtt0R INSPECTION AND TEST.ALSO RECORD DEPTH OR SLIP LOAD IN SPACE FROVIDED. fPAC"NG ( 7.2.6) At t ANCHORS IN LOT OC INSPECTOR.....,.. ... __.__, UATE__. LICE CSVER DISTANCE (7.2.5) ALL ANCHORS IN LOT 00 INSDECTOR CATE isASE PAATE GAP (7.5) ALL BASEPL ATES IN LOT QC INSFECTOR DATE BOLT AND DASE FLATE NOLE SIZE (7.2.7) QC It4SPECTOR ONE BCLT PER SA;E PLATE DATE REJ! CTS 02SPOSITION m FINAL ACCEPTANCE o QC INSPECTOR DATE COG ENGR Co.it

  • Revtston

~ a ~

' l. Page 32 MAI-A p ATTACHMENT B DEC 0 2 125 l DATA SHEET WEDGE BOLT ANCHORS COG ENGR Workplan/MR No.

  • Descriotion of Lot

^, Drawing No. ( ANCHOR SIZE TORQUE PROJECTION QUAF.TITY i-DIA LENGTH LONG OR REG (Ft Lbs) s-MANUFACTJRER TOTAL QC INSPECTIONS f' TORQUE WRENCH NO. CAL DUE DATE ANCHOR DIAMETER AND LENGTH (7.3.I) QC INSPECTOR DATE k ATTACEMENT THICKNESS (7.3.2) QC INSPECTOR DATE t. PERPENDICULARITY (7.3.3) QC INSPECICR DATE SIDE COVER DISTANCE (7.3.4) QC INSPECTOR DATE SPACING (7.3.5) QC INSPECTOR DATE k' TORQUE (7.3.6) QC INSPECTOR DATE f. PROJECTION (7.3.7) QC INSPECTOR DATE s.. BASE PLATE GAP (7.5) QC INSPECTOR DATE E r l (. REJECTS CCG ENGR DISPOSITION w.- 1 i ( i FINAL ACCEPTANCE QC INSPECTOR / DATE COG ENGR / CATE I;.

  • Revision e

N ~ rewa ea ' MAI-4 4TTACHME7.T C DATA SHEET 3[p g g gggg.' UNDERCUT ANCHORS CQG_ING9 WorkplanlHR No. COMPON[NT INDENTIFICATION DRAWING GO.' DRILLCO NAKISOLT ANCHOR INSTALLATI0* CATA DIA ANCNOR SLEEVE TVPE HIN PRIMARY ORILL BIT UC TOOL TOROUE TENSION PROJECTION 'GTH LENG1H I DR II HOLE DEPTH DIAMETER DIANETER (ft Lbs) F0F.(MAN CHECKSlM(MUR(t(ql3 BOLT DIAMETER ANCHOR LENGTH SLEEVE LENGTH ___. QUANTITY DRILL SIT DI APETER ( 7.4.'2.2) FORENAN DATE PRIMARY HOLE DEPTH (7.4.2.3) FOREHAN DATE UC TOOL DI AMETER (7.4.2.4) BEFORE FOREHAN DATE AFTER FOREMAN DATE UC TOOL LENGTH (7.4.2.5) FOREMAN DATE UC TOOL INDICATOR P!hS FORENAN DATE BOTTONED OUT ( 7.4.2.6) QC_INSEICIIONS ANCHOR DIAMETER AND LENGTH (7.4.3.1) QC INSPECTCR DATE SoACING (7.4.3.2) OC INSPECTOR DATE EDGE DISTANCE (7.4.3.3) QC INSPECTOR DATE ((((] TORQUE (7.4.3.4) WRENCH NO. CAL DUE DATE QC INSPEC10R DATE~ or or [___J TENSION LOADING ( 7.4.3.5) GAUGE H&TE NO. GAUGE PRESS CAL DOE DATE (COG ENGR) QC INSPECTOR 3 ATE PROJECTION (7.4.3.6) QC INSPECTOR DAtt l-BASE PLATE GAP (7.5) OC INSPECTOR .DATE REJECTS COG ENGR DISPOSITION FINAL ACCEPTANCE OC INSPECTOR DATE COG ENGR DATE ( L., _ w -- O N A

Page 34 r-

f MAI-4 SEP O 6 1335 b

ATTACHMENT D DATA SH$ET TRANSMITTAL TO OE l' TO RESPONSIBLE OE ENGINEER FROM, j. RESPONSIBLE PLANT ENGINEER DATE UNIT ECN ATTACHED ARE THE FOLLOWING QUANTITIES OF MAI-4 DATA SHEETS li SSD - ATTACHMENT A i l WB - ATTACHMENT B l 1 UC - ATTACHMENT C l THESE DATA SHEETS ARE THE REPORT OF THE INSPECTION AND TESTING OF CONCRETE ANCHORS t REQUIRED BY, GENERAL CONSTRUCTION SPECIFICATION G-32. THE ANCHORS WERE INSTALLED ON f PLANT WORK INSTRUCTION (S) i: 1 9 4 I 6 a L L =}}

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