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Masonry Question

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Is there an allowable 1/3 stress increase when designing Masonry Shear Walls using the ASD Method?  If so could you please point me to the section of the ACI530/ASCE 5/TMS 602 or the 2007 CBC  where I can find it.  I know that there is a 1/3 stress increase allowed mentioned in section of ACI 530/ASCE 5/ TMS 602 when considering load combination c, d, or e (which contain wind or earthquake loads) of section of the ACI 530/ASCE 5/TMS 602.  However, section 2107A.2 of the CBC requires that section be deleted from the ACI 530/ASCE 5/TMS 602. Does the deletion of section mean that the 1/3 allowable stress increase no longer applies? Or does it mean that the 1/3 increase is still permitted where the ASD Load Combination includes wind or earthquake loading.  Please provide me with some information on this matter.  Thank You.



Salvador Dorado


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