Laserfiche WebLink
aIle L., <br /> September 16, 2015 <br /> Mr. Mike Bergstrom, LEED® AP <br /> Project Manager <br /> Synergy Constructiqn, Inc. <br /> Mobile: 206.510.0134 'F 11171 T 513 0 k 636-- <br /> Email: mbergstrom@synergyconstructlon.com <br /> Re: Pagoda Village, Grand and Wall Street, Everett, Washington, Synergy <br /> Construction, Acrylic Panels and 'Z-Series' Connectors at Balcony Intermediate Rails <br /> Mr. Bergstrom, <br /> We have reviewed the shop drawings by Goldfinch Brothers, dated 4/14/2015 and <br /> calculations by Edward C. Robinson, PE (attached). We understand the Acrylic Panels and 'Z- <br /> Series' zinc connectors are to attach to the steel frame balconies at the Pagoda Village, Grand <br /> and Wall Street, Everett. <br /> The reviewed calculations show that the 'Z-Series' zinc connectors can support 446 lbs of <br /> horizontal force, the maximum distance between the connectors should not be more than 4'- <br /> 9". Please review our attached comments to the shop drawings (E2, E5, and E6) showing the <br /> location of the 'Z-Series' zinc connectors. The panels and connectors are designed with the <br /> intent to resist a 25 psf wind load and 50 pound concentrated load. Based on the calculations <br /> and tables by Mr. Robinson, PE the 'Z-Series' zinc connectors and 1/2" Acrylic panels are <br /> adequate to resist 2012 International Building Code (Chapter 16, section 1607.8.1.2) and the <br /> American Society of Civil Engineers Minimum Design Loads 7, section 4.5.1. <br /> Install the 'Z-Series' connectors per the manufacturer's specifications and provide holes in the <br /> Acrylic panels as specified in the attached calculations by Mr. Robinson, PE. Verify with <br /> manufacturer the placement of connectors and hole diameter'will allow expansion and <br /> shrinkage that will not result in damage to the Acrylic panels or 'Z-Series' connectors. <br /> The 'Z-Series' zinc connectors and the 1/2" Acrylic panels meet the minimum loads <br /> requirements of the 2012 IBC and ASCE 7. The shop drawin.• e connector locations <br /> should be modified as attached. 4 VANE <br /> Please call, (206) 380-0732, if q`ou have u *-Q",,,,'•.%661'wr+, , '� ` <br /> y . questions. l, <br /> Sincerely, <br /> Sliderule Engineering Works, Ilc . 4 )7: <br /> S' N A L -, <br /> Andrew L. Herrick, P.E. <br /> 1/3,g <br /> 227'e'street southeast,auburn,washington 98002-5518 t=206+380+0732,e-mail=alhpe_sliderule@q.com <br />