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7 <br /> NEW TOWER EXTENSION <br /> NOTES: <br /> 1. STEP BOLT CLIP WELDS ARE SUBJECT TO AWS D1.1 AND MUST BE INSPECTED BY A <br /> E70XX 3 3 E70XX CWI.REFER TO DOCUMENT"ENG-STD-10069 GC CWI REQUIREMENT STANDARD"FOR <br /> 16 16 CWI REQUIREMENTS. <br /> 2. STEP BOLT CLIPS SHALL BE SHOP WELDED. <br /> 3. STEP BOLT CLIPS SHALL BE WELDED IN PLACE PRIOR TO HOT DIP GALVANIZING THE <br /> NEW CCI-SB-0100 WELDMENT. <br /> 4. CONTRACTOR SHALL USE ALL NEW STEP BOLTS AND HARDWARE. <br /> STEP BOLT CLIP WELD DETAIL 5. CENTER TO CENTER STAGGERED SPACING SHOULD BE MATCHED TO EXISTING FIELD <br /> CONDITIONS.STAGGERED SPACING SHALL BE A MINIMUM OF 10"AND MAXIMUM OF <br /> 16",IN THE VERTICAL DIRECTION. <br /> 6. HORIZONTAL SPREAD IS NOT TO EXCEED 24". <br /> 7. STEP BOLT MATERIAL SHALL MEET THE REQUIREMENTS OF ASTM A449 AND SHALL BE <br /> TESTED AS FINISHED STEP BOLTS AT TEST FREQUENCY P(PIECE TESTING)OF ASTM <br /> A673 TO MEET MINIMUM ABSORBED ENERGY REQUIREMENT AT-20 DEGREES F[-29 <br /> DEGREES C]OF 15 FT-LBS[20 J]AVERAGE FOR 3 SPECIMENS AND A MINIMUM OF 12 <br /> FT-LBS[16 J]FOR ANY 1 SPECIMEN IN ACCORDANCE WITH ASTM A370. <br /> 8. STEP BOLTS SHALL BE INSTALLED USING DOUBLE NUTS.A STEP BOLT INSTALLED IN A <br /> STEP BOLT CLIP SHALL BE TURNED WITH THE OUTER NUT LOOSE UNTIL THE END OF <br /> MINIMUM 2"0 THE STEP BOLT MAKES CONTACT WITH THE SUPPORTING MEMBER.THE OUTER STEP <br /> STEP BOLT HEAD BOLT NUT SHALL THEN BE TIGHTENED TO A SNUG TIGHT CONDITION AND <br /> PRETENSIONED BY ROTATING THE OUTER NUT 1/3 TURN. <br /> 3/4"0 x 9"STEP BOLT <br /> ir 3/4" (A449) 9. THE DEFAULT STEP BOLT CLIP SHALL BE USED WHERE POSSIBLE ON NEW <br /> REINFORCING ELEMENTS.IF FIT-UP PROHIBITS ITS USE,THE ALTERNATIVE STEP BOLT <br /> I I I I I I I I I I CLIP OR NEXGEN2 STEP BOLT ADAPTER SHALL BE USED IN THESE LOCATIONS. <br /> NEW TOWER EXTENSION iiiiNifiriti <br /> 4„ I <br /> y (THREAD LENGTH)Y".- <br /> -- 9" -I CCCROWN <br /> v CASTLE <br /> STEP BOLT <br /> ' \\\� THIS DRAWING IS COPYRIGHTED AND IS THE <br /> \\\ SOLE PROPERTY OF CROWN CASTLE.IT IS <br /> 1`‘ PRODUCED SOLELY FOR USE BY CROWN <br /> CASTLE AND ITS AFFILIATES.REPRODUCTION <br /> NO. DATE DESCRIPTION BY OR USE OF THIS DRAWING AND/OR THE <br /> NEW 3/4"STEP INFORMATION CONTAINED IN IT IS FORBIDDEN <br /> BOLT&HARDWARE <br /> 1Io <br /> CLEAR WIDTH WITHOUT THE WRITTEN PERMISSION OF <br /> 1111/ <br /> REVISIONS <br /> CROWN CASTLE. <br /> SITE NAME:NORPRO <br /> I mimic <br /> O7/23/21 BU NUMBER:826263 <br /> !anat. 8■I . WO NUMBER:1996736 <br /> SITE ADDRESS: <br /> 111 <br /> [ 2215 MERRILL CREEK PKWY <br /> O. 't1ZuC LAC EVERETT,WA 98203 <br /> NEW CCI-SB-0100 I o y�gg l' SNOHOMISH COUNTY,USA <br /> F.., / ,,% Tp ENG/QA BY:NCM DATE: 07/20/21 <br /> V' 4" DFT BY: TPS DATE: 07/22/21 <br /> STEP BOLT DETAIL ,c % f <br /> STEP BOLT CLIP INSTALLATION DETAIL . � fi?'`'`� w� DFT/QABY: SL DATE: 07/23/21 <br /> STEP r'. APRVD BY: NCM DATE: 07/23/21 <br /> /' SCALE:N.T.S. <br /> Crown Castle USA, Inc DETAILS <br /> Engineer/Land Surveying#2271 <br /> License Expires: 02/24/2023 REV <br /> S-9 0 <br />