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Includes uplift nonlinear behavior scenarios and shallow footing example parameters with bearing capacity allowables.",{"@graph":14,"@context":77},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/research-report/","Research & 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foundations?","Question",{"text":63,"@type":64},"The materials address proportioning elements for transfer of seismic forces, strength and stiffness, and how foundations respond through shallow and deep behavior under EQ motion.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How are load paths and soil pressures treated?",{"text":68,"@type":64},"The document outlines load path transfer to soil, including soil-to-foundation force transfer and resulting soil pressure effects, with reference to passive earth pressure where relevant.",{"name":70,"@type":61,"acceptedAnswer":71},"What reinforced concrete footing checks and critical sections are shown?",{"text":72,"@type":64},"It presents basic design criteria with critical sections for flexure, one-way shear, and two-way shear, including typical footing and reinforcement geometry labels.",{"name":74,"@type":61,"acceptedAnswer":75},"How does uplift nonlinear behavior influence footing response?",{"text":76,"@type":64},"The content 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seismic forces Strength and stiffness Shallow and deep foundations Elastic and plastic analysis  \nInstructional Materials Complementing FEMA 451, Design Examples  \nFoundation Design 14-1  \nLoad Path and Transfer to Soil  \nSoil Pressure  \nPile supporting structure  \nForce on a pile  EQ on unloaded pile Inertial force  \ndeflected shape  \nsoil  \npressure  \ndeflected shape  \nsoil  \npressure  \ndeflected shape  \nsoil  \npressure  \nUnmoving soil  EQ Motion   \n Instructional Materials Complementing FEMA 451, Design Examples Foundation Design 14-2  \nLoad Path and Transfer to Soil Soil-to-foundation Force Transfer  \nPassive earth pressure  \nShallow  \nFriction  \nEQ motion  \nInstructional Materials Complementing FEMA 451, Design Examples  \nFoundation Design 14-3  \nLoad Path and Transfer to Soil Soil-to-foundation Force Transfer  \nDeep  \nMotion  \nSoil pressure  \nBending moment  \nEQ Motion  \nInstructional Materials Complementing FEMA 451, Design Examples  \nFoundation Design 14-4  \nLoad Path and Transfer to Soil Vertical Pressures-Shallow  \nOverturning  \nInstructional Materials Complementing FEMA 451, Design Examples  \nFoundation Design 14-5  \nmoment  \nEQ motion  \nLoad Path and Transfer to Soil Vertical Pressures-Deep  \nOverturning moment  \nEQ Motion  \nInstructional Materials Complementing FEMA 451, Design Examples  \nFoundation Design 14-6  \nReinforced Concrete Footings: Basic Design Criteria (concentrically loaded)  \nOutside face of concrete column or line midway between face of steel column and edge of steel base plate (typical)  \n\n| |  |\n| --- | --- |\n\n(a)  \nCritical section for flexure  \nextent of footing (typical)  \n| \u003Cbr> d  |  |\n| --- | --- |\n\n(b)  \nCritical section for one-way shear  \n(c)  \nCritical section for two-way shear  \nd/2  \n(all sides)  \nInstructional Materials Complementing FEMA 451, Design Examples  \nFoundation Design 14-7  \nFooting Subject to Compression and Moment: Uplift Nonlinear  \n(a) Loading  \n(b)  \nElastic, no uplift  \n(c)  \nElastic, at uplift  \n(d)  \nElastic, after uplift  \n(e)  \nSome plastification  \n(f)  \nPlastic limit  \nInstructional Materials Complementing FEMA 451, Design Examples  \nFoundation Design 14-8  \n\n| | | |\n| --- | --- | --- |\n|  | |  |\n|  | |  |\n\n5 Bays @ 25'-0\" = 125'-0\"  \n1'-2\"  \nExample 7-story Building:  \nShallow foundations designed for perimeter frame and core bracing.  \nInstructional Materials Complementing FEMA 451, Design Examples  \nFoundation Design 14-9  \nShallow Footing Examples  \nSoil parameters:  \n• Medium dense sand  \n• (SPT) N = 20  \n• Density = 120 pcf  \n• Friction angle = 33o  \nGravity load allowables  \n• 4000 psf, B \u003C 20 ft  \n• 2000 psf, B > 40 ft Bearing capacity (EQ)  \n• 2000 B concentric sq.  \n• 3000 B eccentric  \n􀀀 φ = 0.6  \nInstructional Materials Complementing FEMA 451, Design Examples  \nFoundation Design 14-10","cbCaicGXtG4FPRb4","https://ap.wps.com/l/cbCaicGXtG4FPRb4","pdf",367668,38,"English","# Load Path and Transfer to Soil\n## Soil Pressure\n## Pile Supporting Structure and Inertial Effects\n# Load Path and Transfer to Soil (Soil-to-Foundation Force Transfer)\n## Passive Earth Pressure\n## Shallow vs Deep Foundations\n# Vertical Pressures and Overturning Moment\n# Reinforced Concrete Footings: Basic Design Criteria\n## Critical Sections for Flexure and Shear\n# Footing Subject to Compression and Moment: Uplift Nonlinear\n## Loading States from Elastic to Plastic Limit\n# Shallow Footing Examples","[{\"question\":\"What seismic design topics are covered for foundations?\",\"answer\":\"The materials address proportioning elements for transfer of seismic forces, strength and stiffness, and how foundations respond through shallow and deep behavior under EQ motion.\"},{\"question\":\"How are load paths and soil pressures treated?\",\"answer\":\"The document outlines load path transfer to soil, including soil-to-foundation force transfer and resulting soil pressure effects, with reference to passive earth pressure where relevant.\"},{\"question\":\"What reinforced concrete footing checks and critical sections are shown?\",\"answer\":\"It presents basic design criteria with critical sections for flexure, one-way shear, and two-way shear, including typical footing and reinforcement geometry labels.\"},{\"question\":\"How does uplift nonlinear behavior influence footing response?\",\"answer\":\"The content shows loading progression from elastic response with no uplift to conditions at uplift and after uplift, including stages where plastification occurs up to a plastic limit.\"}]","Foundation Design 14-1 - Foundation Design | PDF",96]