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DIBBLE ENGINE � RS, INC. P��oject <br /> Professional Structural Engineering Services Addendum <br /> �z to3-C71,(p <br /> DAT'E: 12/4/2007 JOB �: 07-693 <br /> CL�IT: Frank Song/David Lee FAX: 425.672.3590 <br /> AKC Enterprise PHONE: 425.672.3589 <br /> 18623 Hwy 99, Suite 260 <br /> Lynnwood,WA 98037 <br /> FROM: 7ason C. Boume,P.E. <br /> PROJECT: Christian Kar Building,Everett,WA—Repair for incorrect huss ins'allation <br /> NO. OF PAGES (Including Cover): 4 <br /> PROIECI'SUMMARY: <br /> DibUle Engineers was contracted to provide a repair solution for roof irusses that were <br /> incorrectly installed. After reviewing the project,the solution was determined to be installation <br /> of a new ledger and reinstalling tt�e trusses in their original wcrect orientarion, according to <br /> original plf;ns. <br /> The engineering calcularions provided for this revision 2re for an equivalent ledger bol�t that can <br /> be installed into the existing CMIJ wall,in lieu of the cast-in-place"j-bolt" as shoam on the <br /> original details. Design is based on equivalent shear strength to the original detail. Lateral"pull- <br /> ouY'shength is not applicable since straps are provided per the original detail to accommodate <br /> loads perpendiculaz to the CMU wall. Dibble Engineers is not the Engineer of Record for tnis <br /> project and is only responsible.or the altemate bolting o�tions for the ledbc�r as noted in the <br /> attached calculations and revised details. <br /> C. 80 <br /> ��� op W�s HF <br /> � <br /> �'s . <br /> ����'� D <br /> � � <br /> Op�� '�� ���1 �-�'( v�Ss or�,+���'G���� <br /> � �F��GO�'"�� PIRES: 08/30!D <br /> G�p gCt��„� 12��l�2vo 7 <br /> 600 Duront Sme¢1,Suile B P.360-734-1188 <br /> Dellingham, 1YA98225 � oF y F.360-738-7798 <br />