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// CODE SNIPPET

2.4.2 Demand

California Administrative Code 2019 > 6 Seismic Evaluation Procedures for Hospital Buildings > 2 Procedures for Structural Evaluation of Buildings > 2.4 Analysis of the Building > 2.4.2 Demand
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All building components evaluated shall resist the effects of the seismic forces prescribed herein and the effects of gravity loadings from dead, floor live and snow loads. The following load combinations shall be used:

(2-1)

or

(2-2)

where:

Q = the effect of the combined loads.

QD = the effect of dead load.

QE = the effect of seismic forces.

QL = the effective live load is equal to 25 percent of the unreduced design live load but not less than the actual live load.

QS = the effective snow load is equal to either 70 percent of the full design snow load or, where conditions warrant and are approved by OSHPD, not less than 20 percent of the full design snow load except that, where the design snow load is less than 30 pounds per square foot, no part of the load need be included in seismic loading.

The seismic portion of the demand (QE) is obtained from analysis of the building using the seismic base shear (V) from Equation 2-3.

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