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Alternate Material(s) and/or Method(s) Application <br /> Marion County Public Works <br /> 411 Marroir 5155 Silverton Rd NE <br /> county Salem OR 97305 <br /> OREGON <br /> Phone: (503)588-5147 Fax: (503) 588-7948 E-mail: Building@co.marion.or.us <br /> DESCRIBE WHY, HOW, ETC., THE PROPOSED ALTERNATE IS EQUIVALENT AND MEETS THE <br /> INTENT OF THE CODE IN TERMS OF`STRENGTH,EFFECTIVENESS, FIRE RESISTANCE, <br /> DURABILITY, HEALTH , AND SAFETY': <br /> The truss details require an uplift tie rated for a minimum of 252 lbs. I am proposing using two hurricane ties on each <br /> truss nailed to the top of the glulam beam, rather than the side. The NDS indicates that a 0.131 diameter nail has a <br /> withdrawal rating of 45 lbs/inch of penetration. In the proposed installation there will be 10 nails x 1.5 inches x 34 <br /> lbs/in. which is equal to a total withdrawal of 510 lbs. With a safety factor of 1.5 this would allow 340 lbs in uplift. <br /> Similar to the rating of two H2.5 hurricane ties in the Fl direction as shown in the Simpson catalog. The proposed <br /> installation will place the upload force in the F l direction as shown in the Simpson catalog. <br /> LIST SUBSTANTIATING EVIDENCE(REPORTS, STUDIES,ETC)—ATTACH COPIES OF DOCUMENTATION <br /> Simpson catalog page 156, and the NDS <br /> I hereby reques royal to a Itemate material(s)and/or method(s)from that required by code as described above. <br /> Signed: / 7,P� Date: Q. <br /> Approved <br /> l-. Approved with conditions <br /> Denied //' p <br /> Signed: /44- 10-1 <br /> �(, Date: //24/�' O/0 <br /> Page 2 of 2 <br /> /` J GHFORMS\BLDG\R-37Alternale Material or Method Request.doc <br />