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440.2r-08_1st_printing

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Erratas en el documento ACI 440.2R del año 2008. Actualizado al 2013. A tener en cuentas dado el cambio en algunas de las fórmulas de uso cotidiano
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   ERRATA as of October 24, 2013 ACI 440.2R-08 Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures 1 st  printing Reported by ACI Committee 440 Section 13.1.2 , page 38, paragraph following Eq. (13-1), revised as: In   in  which v  is calculated using Eq. (11-7)… Eq. (10-13) , page 29, revised as:  M  n  =  A s  f s            22 11 c-h f  A c-d  e f  f  f     M  n  =  A s  f s               fffe  f  ccdAfd  11 22   Eq. (11-8) , page 33, revised as:  L e   = 0.58 2500 in in.-lb units ()  fff  ntE   (11-8)  L = e   0.58 23,300 in SI units()  fff  ntE     L e   = 0.58 2500 in in.-lb units ()  ff  ntE   (11-8)  L e = 0.58 23,300 in SI units()  ff  ntE    Eq. (12-3) , page 35, revised as: 3.3 cccfal  fff         3.3 cccfal  fff        Section 12.2 , page 37, last paragraph revised as: For values of eccentricity greater than 0.1 h  and up to the point corresponding to the  balanced condition, the methodology provided in Appendix A Appendix D may be… Section 12.4 , page 37, last paragraph revised as: The value of k  1    k 2  in Eq. (11-7) can be taken as… Page 42 , design example, Step 3 Calculation in inch-pound units revised as: 19kips/in.(System B2.66   (System A)7.5kips/in. * fu* fu PP )    19kips/in.(System B)2.66   (System A)kips/7.15in. * fu* fu PP     Page 42, design example , Step 3 Calculation in SI units revised as: 3.33kN/mm(System B)2.66(System A)75.1kN/mm * fu* fu PP    3.33kN/mm(System B)2.66   (System 1.25A)kN/mm * fu* fu PP     Page 53 , design example, Procedure Step 2, revised as: Cross-sectional area:  A cg  = b e h  f + b w ( h   h  f  )  A cg  = b  f  h  f + b w ( h   h  f  ) Page 53 , design example, Step 2 Calculation in inch-pound units revised as: 324 24 in.2124 in.21(9.3914.5)=51,150 in.12       324 24 in.2124 in.21(9.39)= in.12     10.538,610   51,1507.75 in.852 r       in.852 r     38,6106.73   265==0.0058928,500  pe    ==28,500  pe  1650.00578   Page 53 , design example, Step 2 Calculation in SI metric units revised as:  3210 610 mm533610 mm533(238368)=2.1310mm12        32 610 mm533610 mm533(238)=12     10 266.71.61×10 mm   105 2.1310197 mm5.510 r       105 1.6110171 mm5.510 r       5 1138==0.005891.9610  pe    5 1138==1.9610  pe  0.00579   Page 53 , design example, Step 3 Calculation in inch-pound units revised as: 2 126.213.115.61471215.6(1)3605852360551,1507.75 bi           2 126.213.115.61471215.6(1)36058523605 bi         38,6106.73   5 310 bi        5 10 bi      2.88  Page 53 , design example, Step 3 Calculation in SI metric units revised as: 65210 563,31033339719910397(1)24,7005.51019724,7002.1310 bi             6510 563,31033339719910397(1)24,7005.51024,70010 bi           2 1711.61   5 310 bi        5 10 bi      2.88   Page 54 , design example, Step 7 Procedure revised as:  10.035 e pspepnet cc P AE            22 e r    10.035 e pspepnet c P E            22 e r   cg  A   Page 54 , design example, Step 7 Calculation in inch-pound units revised as: 22 126.213.10.0058910.0185236057.75  ps             22 126.213.10.0058910.018523605  ps           6.73   Page 61 , design example, Step 3 Calculation in inch-pound units revised as: 8.18 ksi6.5 ksi1.2 ksi3.30.425 l  f       8.18 ksi6.5 ksi ksi 3.3 0.425 l  f      1.260.95   Page 61 , design example, Step 3 Calculation in SI units revised as: 56.4 MPa44.8 MPa8.3 MPa3.3 × 0.425 l  f       56.4 MPa44.8 MPa MPa 3.3 × 0.425 l  f     8.70.95 Page 61 , design example, Step 4 Procedure revised as: 22 2 l ffffe  fbhn Et        22 2 l fffe  fbhn Et       Page 61 , design example, Step 4 Calculation in inch-pound units revised as:       223 1.2 ksi24 in24 in0.95233,000ksi0.013in8.810in   in n               22-3 .  ksi24 in.24 in.233,000 ksi 0.013 in.×8.8 × 10in.   in n   1.26  1.2 ksi0.180.086.5 ksi lc  f  f      
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