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Gradient, low SOILS AND FOUNDAA11ONS Material intensity and er asionristics of elope 1805.423 Plain Of plain eoocrvte concrete footings. The edge th;cr;ne� 1805.4Footings shall be designed an constructed Light-frame construction supporting of other than 1805.4F otings cted in (203 mm be less that 8 inches Thar Allowable bearing capacity of the soil is not exceeded, and ) where placed c coi �aUa! settlement is minimized. The minimum Exception: For plain concrete footings Width of footings shall be 12 inches (305 nun) tcd to be Group R -3 8s svpp r per occupancies. the ate thickness is permit- Does test 6 inches (152 mm),provided that the footing Footings in areas with beyond a distance greater that the expansive soils shall be designer Thickness of the footing cal either side of the supported In accordance with the provisions of Section 1805,8. Wall. 1805.4.2.4 Placement of concrete. Concrete fooungs 1 805.4./1.1 Design loads, F shall be Shad not be placed through wiles unless a ° des tnerr or oche, me mow �vor'abk effecter due to the combinations tg� for method approved by the build' , loads sp morn unf v Section 1605.3. s due The dead load shall of placed under o in water„ is co Where clads the weight shall in- shall bed presence of woo, the 8h foundations„ footings and overlying deposited by approved mane to turbulence lenc fill. Reduced live loads, as specified In Section 1607.9. the ter. segregation of the mix and negligible Arc permitted to be used in designing footings, the wear aufiuldna of 1 805 4 1.2 Vibratory loads. Where machinery boas or other vibrations are transmitted through opera- 1805.4.2.5 Protection of foundation, consideration shall be given in th he � be protected f� concrete. Concrete f ins design to n, con prevent �� disturbances of the soil. a period of not Icss than five thereafter. depositing t and s for days os t Wate to I 1 805.4 � Cie footings, Not be allowed to bow through the deposited �crttc 18 4,2 of The design, materials and con - lructj 2,1 cocotte footings shall comply with Sections permitted Forming g inst the r f through 1805.4 2.6 and the provisions o t � Permitted to be east against the earth footings are ter I .42.1 p ap ion of the building here, in the require ding o>�cial, soil conditioner do not forming What forming rtgttirc Exception: What a dance with g rte, h shall bc !n seder- Crete f specific design u not provided, can- der 6 of ACI 318. footings supporting walls of light-frame catsbuc. 1805.4.3 M Lion e f Pitted to be designed in accordance with Table 1805.4.2 and o Masonry-unit footings, Thc design materials construction of masonry-unit footings shall comply 1805.4 I with Sections 1805,4.3.1 and 1805.4.3.2, and the provisions Shall have a specified compressive in footings Of Comer 21. Seas than 2,500 pressive strength (f c) of not Al 28 der pounds Per square inch (psi)(17 231 kPa) Exception: Where a specific design is not provided, ma Ys. sonny -unit footings supporting walls of light -berme con- 1805.4_2.2 T lion arc permitt to b designed in accordance with Reserved. 803.42. 1805.4.3.1 Dimensions laid in , Masonry-unit f OOtinB shall be Type M or S mortar complying with Section FOOTINGS SUPPORTING W TABLE 1805.4.2 ALI-S OF LIGHT-FRAME CONSTRUCT10N&b.c.d AMBER OF FLOORS WIDTH OF SUPPORTED BY THE FOOTINGS' F OOTINGS (inches) OF FOOTING (inches) _II _I _I _111111111......nummomm.1111111111111111. 6 3 6 For S I 1 inch = 25.4 nun, I foot a 304.8 rum. a Depth of footin b ga shall be in accordance with Section 18052. )mound under the floor is permitted to be excavated c �` wells ere Pen to be t o the elevation of the top of the footing the width shown in this table, and footings shall bc by isolated footings. The footing width and length d. For thickness of foundation wall s ee S �' not men than 6 Peet on center. email be twice s. cctian 1805.5. c S as p g a Q an to the stiPttlatcd number of floors, Footings supporting roof onh C Plain concrete footings for Group R - occupancies are permittrs to bc 6 inches thick