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HomeMy WebLinkAbout2023.12.22 McGuire Residence Calculations 5 FA Elesign Group immiFsail MSTRUCTURAL ENGINEERING STRUCTURAL CALCULATIONS McGuire Residence Wall Upgrade 5606 N Innsbruck Ct, Fridley, MN 55432 `01111►111,�, E.. • LICENSED : PROFESSIONAL ', • ENGINEER • 58974 ►Ni�i iW���\. PROFESSIONAL ENGINEER I hereby certify that this plan, speciti-ation, or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota Print Name: Jesse De=A Signature: Date 12.22JV23 License # 58974 LIMITATIONS ENGINEER WAS RETAINED IN A LIMITED CAPACITY FOR THIS PROJECT.DESIGN IS BASED UPON INFORMATION PROVIDED BY THE CLIENT WHO IS SOLELY RESPONSIBLE FOR ACCURACY OF SAME.NO RESPONSIBILITY AND/OR LIABILITY IS ASSUMED BY,OR IS TO BE ASSIGNED TO THE ENGINEER FOR ITEMS BEYOND THAT SHOWN ON THESE SHEETS. Project No. IBA23-530 December 22,2023 5FA Design Group, LLC STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS PROJECT NO. SHEET NO. �IBA23-530 PROJECT DATE McGuire Residence Wall Upgrade 12/22/2023 SUBJECT BY Carbon Fiber Design Requirements �BR Structural Narrative The structural calculations and drawings enclosed are in reference to the design of the basement wall stabilization of the residence located in Fridley, MN as referenced on the coversheet. Carbon Fiber Strips will provide the required additional tensile force needed to fully develop the compressive strength against hydrostatic and lateral earth pressure which will create a "balanced" situation within the wall to prevent further bowing and cracking. General Building Department City of Fridley Building Code Conformance (Meets Or Exceeds Requirements) 2018 International Building Code(IBC) 2018 International Residential Code (IRC) 2020 Minnesota Building Code 2020 Minnesota Residential Code [� 5FA Design Group, LLC PROJECT NO. SHEET NO. ®� STRUCTURAL I GEOTECHNICAL I SPECIAL INSPECTIONS �IBA23-530 PROJECT DATE McGuire Residence Wall Upgrade 12/22/2023 SUBJECT BY Project Layout JBR Project Layout(See S2.1 for Enlarged Plan) 51'-4" 24'-0" I I I 1--I--=---=---=---=—r—=---=--I-1 I I I ❑1 ❑2 ❑3 ❑ I ❑5 © I I I I II I II I I II I II I I II I II I I b lsl Fn -,PArFc (3'-6" OC MAX) I I II I II I I II I II I I II I II I I I I (E) CONC SLAB Iw I I I ON GRADE TYP ICD I I I II �I¢ II I I I olzCD I I I N I II I II I 1 II r---------------------III I II 1 I III I I II I I III I I II I I III I I II , I III I 1 II I I III I --- La------ -----------I--------- u I I I I I I I I I I PARTIAL (E) FDN/(N) CARBON FIBER LAYOUT PLAN z SCALE: NTS [� 5FA Design Group, LLC ®� PROJECT NO. SHEET NO. STRUCTURAL I GEOTECHNICAL SPECIAL INSPECTIONS IBA23-530 PROJECT DATE McGuire Residence Wall Upgrade 12/22/2023 SUBJECT BY Carbon Fiber System BR Lateral Earth Pressure Input Values Active Lateral Pressure= 40 pcf Height of Wall,hw= 12.00 ft Height of Grade,hg= 11.00 ft Nominal Wall Thickness, b= 12.0 in Carbon Fiber Strip Width,w= 6.0 in Carbon Fiber Strip Thickness,tf= 0.0248 in Carbon Fiber Strip Layers,n= 1 Carbon Fiber Strip Design Tensile Stress, Ft= 133.6 ksi Carbon Fiber Strip Design Tension Capacity,TO= 19880 lb Span Between Carbon Armor Strip,s= 3.50 ft Pa= 8470 Ib/ft M= 112933 Ib-in Controlling Load Combination= 1.2D+1.6L+0.5S+1.6H CARBON FIBER REINFORCED POLYMER SYSTEM 5FA Design Group, LLr PROJECT NO. SHEET NO. STRUCTURAL I CIVIL I LAND USE PLANNING IBA23-530 PROJECT DATE McGuire Residence Wall Upgrade 12/22/2023 SUBJECT BY Carbon Fiber Strengthening of URM Wall Subject to Out of Plane Loads BR (Assumptions The strains in the reinforcement and concerete are directly proportional to the distance from the neutral axis Max usable strain at the extreme compressive fiber, Emu is assumed to be =0.0025in/in for CMU, per ACI440 The maximum usable strain in the FRP reinforcement is considered to be Km£fu (0.45 for non-puttied surfaces) Concrete tensile strength is neglected FRP reinforcement has a linear elastic stress-strain relationship up to failure A masonry stress of 0.70 fm is assumed uniformly distributed over an equivalent compression zone bounded by edges of the wall cross section and a straight line parallel to the neutral axis at a distance a= 0.70c from the fiber of maximum compressive strain (i.e. y= 0.70 and Pi =0.70) The reinforcement index Wf is limited to 0.70 to avoid shear failure Masonry Properties Assumed Compressive Strength of Masonry, fm = 1000 psi Ultimate Compressive Strain of Masonry, Emu = 0.0025 in/in Carbon Fiber Manufacturer Properties Carbon Fiber Strip Design Tensile Modulus of Elasticity, Ef= 36300000 psi Design Rupture Strain, E*fu = 0.0200 in/in Nominal Thickness of Fiber Strap, tf= 0.0248 in Width of Carbon Fiber Strip, wf= 6.00 in Area of Carbon Fiber Strip, Af= 0.1488 in' Moment Information Maximum Ultimate Moment, Mu = 112933 Ib-in Strength Reduction Factor, (V = 0.70 Maximum Nominal Moment, Mn = 161333 Ib-in Compute Depth of Neutral Axis at Masonry Wall Maximum Nominal Moment, Mn= (0.7c)(0.7fm)bm(tm -0.7c/2) Width of Masonry Wall (Spacing Between Straps), bm = 42.0 in Nominal Thickness of Masonry Wall, tm = 12.000 in Solve Equation for Neutral Axis, c= 0.6747 in Compute Strains in Masonry and Carbon Fiber Environmental Reduction Factor, CE = 1.00 Desiqn Rupture Strain, Efu= 0.0200 in/in Bond Dependent Coefficient, Km = 0.45 Effective Strain in Carbon Fiber, Efe = Km*Efu= 0.009000 in/in Compressive Strain in Masonry, Em= Efe(C/(tm-c))= 0.001192 in/in OK,<Emu=0.0025 in/in Stress in Carbon Fiber Strip, ffu = Efe'Ef= 326700 psi Required Area of Strip, Afr=(yf'm)((31C)/ffu = 0.0425 in' OK,<Af=0.1488 in-sq