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• JUY :5 '99 15:44 i0-&213213 fHCH-PU�ET 501�'D PROP:R�iES T-087 P.04r78 F•193 <br /> � . 4 <br /> The quedrant Corporation JN 93292 <br /> September 28, 1995 <br /> Page 3 <br /> mine ii difterent loodng widths or embedment dapths are required. Footing subgrades must <br /> be clet►ned of loose or disturbed soil prior to pouring conaete. Depending upon site and <br /> equipment eonstraints, this may require removtng the disturbed soil by hand. <br /> An aUowab►e bearing pressute of 3,000 pounds per square (psn ts ;u,propriata for foednge <br /> constructed according to the abova recomme�dations. A one-third Increase in this �;asig� <br /> bauing proeeure may be used when considering short-tertn wlnd or salsmlc bads. For the <br /> above design critefle, k is anticipated thet the total poet-consttuotion settlemeM oi footings <br /> iounded on con-petmt, native soRs, or on sVuctural ft9, will be about one-half inch, with <br /> diffefential settlements on the ordor of ono-hdf inoh in a dietenoe oF 10o feet dong a <br /> continuous footing. <br /> Lntetal loitda due to wind or selsmic forces may be resined by hietfon betwwn tha founda. <br /> tton end the bearing soil, or by passive earth pressure acting on the verticei, embedded <br /> porttons of ihe foundntion. For the latter condidon, the foundetion must be ekher poured <br /> direcdy against reiatively level, undtswrbed sal, o�surrounded by level, shucturel flll. We <br /> recommend uafng tFie tollowing deaign values'tor the }oundation's reatstance to laterol <br /> loading: <br /> Peremeter pec��Vai{,aY, <br /> CoeKcient oi Friction 0.45 <br /> Paesivo Earth Pro�euro 350 pcf <br /> where: <br /> (1). pcf is pounds pe�c�bic faof. . <br /> (2) Passfve earth pressure is computed using the <br /> equivalent fluid dersiry. <br /> If the ground in Iront o(the foundation is loosa or nloping, tho paaufve earth prcaaure given <br /> abova will not be appropriate, We recommend a sataty factor oi at least 1.5 for the <br /> founda�ion'�re�istance to lateral loading,when using the above design values. <br /> Seismic Consldorationo <br /> 7he slu Is located within Seismia Zone 3 as iilustrnted on Figure No. 23•2 of tha 1991 <br /> Uniiorm Building Code (UBG). �n aceordance with T+bla 23J ot the 1991 UBC, the site soil <br /> protile is best represented by Profile Type S2. <br /> 41e0'17?(ll GQfJSL'1:1'A�'11.INC. <br />