Laserfiche WebLink
�l�/� Stru�cural Dcsi�n ;\ss� �ciares <br /> ..� —• , l:ir�i����crin�;.SYr�iunat-� w Lr�,r <br /> ,�� <br /> January 19, 2010 <br /> C U:�Ci 7- GO S <br /> Greg L-'Iwood <br /> 326 Heather Rd <br /> 8verett, G:'A:8203 <br /> Subject: llolc in .loist <br /> "I'o whom this may conccrn: <br /> At the request of Grcg Ghvood, this o�Ticc reviewed thc subject project to dctermine the <br /> result of drilling a 3 %:-inch diamctcr holc at mid-span of ci 2x 10 DI' d12 Iloor joist, and <br /> splicing a ccilingjoist 4'-0" irom Ihe support. <br /> Calculntions show that a 2x 10 DF#2 (loorjoist, spanning 8.58 lcet is structurally <br /> inadcquatc I'or typical residential lloor loading. A '/.�-inch thick, steel plate botl� sides ol' <br /> thcjoist urc required (scc detail 1). When the distance frrnn thc bottom of the joist to the <br /> bottom af the pipe is Icss than 2-inches, delail 2 must be uscd. <br /> l loles drillcd ncar the ccnler of Ihe joist, located i-foot from the support are structurally <br /> �����p<<�nt�. <br /> Notched joist 2 %-inches Jccp on the �ension �acc, ncar the electric pancl is structurally <br /> adequatc. A %:"diametcr� G" lag screw must he installed G' in linnt ui the notch (toward <br /> mid-span) to eliminatc crack propagation. <br /> Thc cciling joist, nuil laminated 4'-0„ in front of thc supporl, are structurally inadcq��tc. <br /> Sistcr a nc�v, lull -spnn ccilingjoist af;ainst thc existing jnist nnd nail 1lminatc with 1 od <br /> spaccd at I(" o/c (staggcred). <br /> I!'thcrc arc any qucstions about this reporf nr if 1 can be of any further assistance, pleasc <br /> fccl Gcc to call mc. <br /> / -� �Co I��,. �; <br /> j VLrY t IY Y s�— ;�;��aF wnsy,,G�.' <br /> \���1�. --\ G� <br /> � . 1�.� ,c_ �� �;I`. c„� �"�: <br /> _ : <br /> Chris Co�_mgton, P.L. '� - �- `" �, <br /> . 1 \ <br /> ; <br /> �!� _ ) <br /> O f^3Y' ',� �. . <br /> \� ���� /'�:. �-. <br /> 41�s/QVf,t r',-' <br /> 4�'� <br /> .. t. .l <br /> 'YO_' K���:I,��ii�llrr 1��. I[,�,�rcn. A\�.A 9NZul Pli� I_'=�-;;7 ��iu���� , �_uvlG <br /> „�„�„�,���������•; �„��� JAPI 19 2010 � <br />