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HomeMy WebLinkAboutPermit Correspondence 1996-9-3 Tim R fr0€llch P E f;I 'II :Ir::",l r,U~'Tl J" Z Omd]T Az:JmIJ P E ..........j:t;'ICll:Jta: Sf.;::,:.... ~[) J E"/lt~J"'Hndfl, p f:. ^::::~()I::t_.r..: D",).,'~< e ,>cI'1W.;lrz. P E A"~J~J )rr r' C EN'P.....L vQEGvf',! 1 1 _:: ~Vl' j :'r1 SI.J 0" I O~ ~ :1) (;'r'_ ,Oil G770'2 r \..{ =.1 6 i II...,'.,J(, <11 ..l:C 1P20 .......1.) nFFrrE ( ,} - U H ~llf....r0r ~~"r~~ 11rl"'\,,-j (" ,n'l r;,,;... 1-/\.,( IJ6,1l'J/70 C())"J?4700') C:VJ d Wd917'[ September 3, 1996 Michael Pershern The Rommel Architectural Partnership 1200 NW Front St Suite 550 Portland, OR 97205 S1~l VV'-~\V1 RE' Placement of Structural CMU Walls Texaco - Spnngfleld Springfield, Oregon Dear Michael, On Wednesday, August 28. 1996, the Special Inspector for the above mentioned project called our office. He Informed us that the mason contractor had begun to set block at the construction site and was not vibrating the grouted cells as required in the Uniform Building Code. The inspector informed the c(\ntr~ctor fh:.:lt th~ cell~ n~edQd to be vibr:::atQd, but by the time thEl contraotor got a vibrator to the Site, he was only able to vibrate the pilasters supporting the roof steel beam At the tIme, he had placed three courses of block on all four sides of the bUilding, We reviewed our design for the block walls and pilasters to determme maxImum stresses, It is our opinion that the maximum stresses In the wall are at mid-heIght Therefore. the first three courses which were not vibrated, is not cntical, and since the pilasters were vibrated, they should be satIsfactory . It IS our recommendation, based on our review of the Information obtamed from the special inspector, that the 3 courses of block walls and pilaster, are constructed sufficiently to support the design loads and do not need to be removed We do however, require that the remaining walls and pilasters to be constructed, be vibrated, and built, In accordance with the Uniform BUilding Code If you have any questions or need further assistance, please do not heSitate to call or office Sincerely, 0/-!2,~ Tim R Froelich. PE cc Bob Barnheart, BUilding Inspector City of Spnngfleld IIJ 9551 ,[ d3S 589[ 9cL. [I2lS '01 ~N3 ~NI~lnSNO~ H~Il30~~'WO~~