b'Design Example 6AFoundation RestorationQuick-Solve Design MethodDesign Details from Design Example 6: across,theothercolumnsprovidearangeof Twostorywoodframehousewithwood foundationdeadloadweightsforthiskindofcomposition siding. residentialstructure. Noticethatdeadloads Foundation consists of 20 wide by 18 tall steel range between 1,050 and 1,550 lb/lin.ft and livereinforcedconcreteperimeterbeamwitha4thick concrete slab cast with the perimeter beam. loadestimates areshownfrom300to475 Top of pile will be 12 below the soil surface lb/lin.ft. Soil data:There are two feet of consolidating, Your judgment about the quality of constructionpoorlycompactedfilloverlaying20feetof isneeded to estimate afoundationloadfrominorganic clay (CL), stiff. withintheranges. InthisDesignExample SPT N blow count was measured between 8 to12 blows per foot increasing with depth careful judgment (after physically inspecting the1. Determine the foundation load: Use Table construction) suggests using DL = 1,200 lb/lin.ft11, Ranges for Typical Average Residential and LL = 375 lb/lin.ft.The average perimeterBuilding Loads that can be found in Chapter 6 of loading for the Quick -Solve design is:this manual.A portion of Table 11 - Chapter 6 is W = DL + LL = 1,575 lb/lin.ft.shown below. 2.DeterminetheSoilClass. ThesoilwasTable 11. Ranges for Typical Average Residential reported only as stiff clay.Referring to Table 9 - Building Loads Chapter 1 Soil Classification Table, Soil Class 6Building Construction Estimated Foundation isselected.Keepinmindthatlittlesoil(Slab On Grade) Load Range information available and keep in mind there is(DL = Dead LL = Live) poorly compacted fill near the surface.One Story DL 750850 lb/ftWood/Metal/Vinyl Walls with Wood LL100200 lb/ft 3. SelectaSuitablePileSpacingandFraming Footing with Slab DetermineUltimateTorqueAnchorLoad:One Story DL1,0001,200 lb/ft This is not a heavy structure so the solid squareMasonry Walls with Wood Framing Footing with Slab LL100200 lb/ft barTorqueAnchor configurationalongwithTwo Story TAB-150-SUB Utility BracketsarethemostWood/Metal/Vinyl Walls with Wood DL1,0501,550 lb/ft economicalproductstousetotransfertheFraming Footing with Slab LL300475 lb/ft structuralloadfromthefoundationtothepileTwo Story DL1,3002,000 lb/ft shaft.Use Graph 2 from Chapter 6, to select pile1st Floor Masonry, 2nd Wood/Metal/Vinyl LL300475 lb/ft spacing, X. (Copy of graph is below)with Wood Framing Footing with SlabTwo Story DL1,6002,250 lb/ft A loading of 1,575 lb/lin.ft is slightly higher thanMasonry Walls with Wood Framing LL 300475 lb/ft the 1,500 lb/ft line on the graph.This line willFooting with Slab be used to select the spacing and then the spacingFromthedescriptionoftheproject,thetotal will be adjusted to reflect the load higher than24" the graph curve.Read across from the 18 inch4,000 lb/ft 3,000 lb/ft3,500 lb/ftfoundationload(exceptsnowloads)canbe footingheighttoanestimated1,575lb/ft11. b/ftroughly estimated from Table 22" Only a portion l 2,000 lb/ftBEAM position, then drop down to see the pile spacing4 - #5 REBARS 00of Table 11 is shown above and is only for slab (GR-60)on grade foundation loads, which is the type of ,5HEIGHTof6-3/4feet.6-3/4feetcentertocenteris20" 2Height of Steel Reinforced Monolithic Footing tfoundation on this project.The structure is a two selected for Safe Use design. X = 6-3/4 feetStructural weight per lineal footstoryresidence with 18" along the footing perimeter (lb/ft)woodcomposition 3 4 5 6 7 8siding. 18"Todeterminethe 2,500 lb/ft /f3,000 lb/ft 0 lb 1,500 lb/ft 1,000 lb/ftestimatedfoundation 16" BEAM 2,001,200 lb/ftload, look down the first 14" HEIGHTcolumn until you find aTwoStorydescription 4 - #4 REBARS EXAMPLE 5that mostclosely 12" (GR-60)matchesthe house on 3 4 5 6 7 8theproject.Reading PIER SPACING - feetECP Technical Design ManualTorque Anchor Design Examples2021 Earth Contact Products, L.L.C.2021-09 Chapter 5Page 100 All rights reserved'