7720 HARDESON RD BASE FILE 2016-01-01 MF Import

Mr. Kenneth W. Callahan Page Pour September 21, 1981 '^� ,light alignment aC this location and the small Uending momen� iC causes do not overstress the pipe colunm. b) The bearing of the base plates of these pipe columns against the concrete below is in some cases not even. In tl�ese cases the space Uecween the base plate and the footing must. be bl.own clean and filled wiCh a Elowable, non shrink grout. c) Kwik-Uolts are being siiUsticuted for embedded anchor UoltG at the pipe column basc plates. This is acceptaUle. Thc kwik-Uolts must Ue installed per the manufacCurers recommendations. Speci.al inspection of this Kwik-bolt installa[ion is not required. 1G. At grid A-7 Yhe panels were fabricated so that detail 2754 must Ue revised. See SK-7 for revised detail. 17. i3ased on inspection oP the l.ast few retaining wall panels, George Cmery, special inspector, quest;oned whe�her previous retaining wall panel along grid 7 were constructed with [he proper 3/4" clearance over the 118 horizontal reinf:orcing bars. llased on convcrsations with Lhe con[ractor, inspection repor[s, conversations lJ1CI1 the inspectors [rom Cascade 'Tes�ing, conversations with Mr. Idally Chri.stopherson oE Lhe Cicy o[ IivereCt, 811d visual inspection of the in sicu panels, it appears cha� thc rein[ercing was correctly placed. 18. Ceor�e l:mery, as noted in his leClcr to the contracCor, dated Auf;usC 2?, 1981. quesl'i.ons whe[her ehe double curtain oC (5) i15 bars, as called Cor in Detail 12SZ taas correctly placed in panels with large openings. The panels which George inspected had ❑ single layer o[ lf4 Uars prior to corrections based on his iiispeccian. 'fhe concractor�repores Chat in all cases except p�nels 112, 3, G, 7, 1D & 11 the douUle ].ayer of !i5's W15 insCalled. 'PLey wcrc noC, ho�acver placed in quil'e Clie right ].ocations. 7'Itey were placed immediately nexC to tLe lf4 horizontal bars which wcre located aC thc center- line oE tl�e �oall. This resull's in a cover of 1-7/8" raChcr than 1-1/2" as called f.or on the plans. llased on reanalysis of the exi.sting strucCurc on calculnCion sheeCs W29 chru W33 there :u-e threc separate condiCions to be denit with. a) At panels :'i2, 3, 6, 7, 10 S].1 a singlc layer of reinForcing was installed. 'fhe analysis on shects 1d32 S W33 shows th:�c [he panels as thcy exist are c�pable of carryiug more Chan 75i of Che applied loads. llowever, repair methods provide a much atiffer load path and must' Ue designcd Co carry Che full la[ecal forces Uecause of Che ina�mpacible deflecCions o[ [he new and exisCing systems. The steel colamn reinto.cing detail on SK8 is Chere- Eore designed to carry thc iull wi.nd loud. U) Other panels along grid 13, ti•hich were inspected by George timery, were properly constructed and requirc no action.