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71 <br /> t <br /> I <br /> f <br /> Para. . E cal ation. L All, excavations shall extend to <br /> solid ground. . +All excavations shall extend at least f <br /> below the finished grade. f <br /> Para. 4. Footings. 1 All +footings must be ma,sonr • 2• <br /> Minimum footings shall be as follows: (a) Under- foundations <br /> of one story buildings,-.six inches thick, and a three inch pro- <br /> Jection, on either, side,of the ,gall'. (b),-Under foundations of <br /> one and a, half and 'not yore than two story buildings, <br /> .eight inches thick; and' four ihch pro*e.c ion ;on, either side <br /> of the-wall. (c) Under a -twelve inch thick wall, eight inches <br /> thick. e All chum Heys, must extend to solid Aground and <br /> have footings which project at least six inches on all sides <br /> and are at least eight inches- thick. (f All footings. shall be <br /> of. such width -and thickness as .to safely resist the super- <br /> imposed load without exceeding at any point the -allowable <br /> bearing capacity , of the soil. <br /> Para. . foundations: . All -foundations, -shall be -'of <br /> I <br /> such width -and thickness as to safely resist the superimposed <br /> load without exceeding the- allowable working strength, and <br /> can be of - concrete," brick or stone.- Minimum requirements <br /> shall be as follows:. (a) six .inch thickness for -poured- con- <br /> crete supporting, one story good frame. structure without <br /> basement. (b) Eight inch. thickness for all .other poured walls. <br /> Jc)_ Eight inch thickness for,,all masonry.-unit walls that ex- <br /> tend up to- eight feet below finished grade. Maximum total <br /> height of• foundation gall supported to be not, more .than <br /> thirty f eet to eaves and thirty-five f eet to ridge. (d. twelve <br /> inch thickness for all masonry unit walls that extend more <br /> than eight feet below-outside finNP <br /> ish grade. <br /> One story frame..buildin-gs ma;y be built on clime' it piers <br /> provided that the distaxice between piers is <br /> rithi the list <br /> of the maximum- spans for wood girders. <br /> Para. 6: 'Piers for birders. 1. First' floor -g� i rs rde must <br /> rest on solid masonry or ,cement filled steel CoIlumns. '2:_On <br /> block ''foundations, cells of blocks below .-irder moist be -filled <br /> ■ <br /> .With.. cement to form solid- bearing, or 3. Masonry pilasters <br /> not less thai -four inches by eight, iri'ches shall' be built -to <br /> receive girder 'ends or, cement filled' steel, } - <br /> columns may be <br /> used. <br /> Para..7.. All areas under I buildin s.must b e,••.:rces.si�. . . <br /> }. g:_ .. ble wrth <br /> •a niinxrnurri clear- ce oI `2o�. nches grid a eriti� ,ted ire <br /> titer ,two <br /> or- galls.. a t •, <br /> Para ... 1. � •a.. ++ L .,_ <br /> 3. 9-o wooden structural ernember s 411,b,e .-clos'er <br /> than one inch to the chimne and whenever oode `y, n rrns <br /> f• . <br />