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  1. MidwestStructE

    MWFRS vs. C&C loads for thick concrete roof (Storm Shelter)?

    Thanks for the replies! I think it's all about showing that a 700 sq. ft section "acts as one piece" as JLNJ indicated. We have 30.2.3: Tributary Areas Greater than 700 ft2 (65 m2). Would it be fair to argue that if C&C loads applied to areas smaller than 700 sq. ft do not cause failure or...
  2. MidwestStructE

    MWFRS vs. C&C loads for thick concrete roof (Storm Shelter)?

    Due to IBC 2018 (and later) requirement, storm shelters are being built across the US when cities expand schools. The shelter typically has a concrete or precast roof. There is a discussion about whether the uplift loads on this roof needs to be calculated as MWFRS or C&C, when the roof size...
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