8.5.1 Balustrade Construction
Balustrades shall be designed to withstand the vertical inertial force due to the weight of the balustrade and the horizontal seismic forces as follows:
(a) The component operating weight, Wp, is the sum of the balustrade dead load, decking weight if supported by the balustrade, and 70% of the machinery rated load (see 188.8.131.52.2) and the seismic force computed as defined in 8.4.13 and 8.4.14.
(b) The seismic forces resulting from the machinery rated load shall be distributed along the exposed length of the handrail from the entry newel tangent to the exit newel tangent as depicted in Figure 8.5.1.
Figure 8.5.1 Balustrade Handrail Force