(at roof) = 1.5 (Standard Sec. 13.1.3) Ip Gravity (non-seismic) supports provided every 10'-0" (given) System working pressure 200 psi (given) (P) = ASTM A53 Pipe = 35 ksi, threaded connections (given) Fy Dead Load = 16.4 D = = Wp = 31.7 Longitudinal brace spacing = 80 feet (given) According to Section 13.3.1 (and repeated in Sec. 12.3.4.1), the redundancy factor does not Standard apply to the design of nonstructural components. 18.5.2.2 Seismic Design Forces. (Standard Eq. 13.3-1) (Standard Eq. 13.3-2) (Standard Eq. 13.3-3) Eq. 13.3-1 governs the horizontal seismic force on the piping system. Standard 18.5.2.3 Performance Criteria. System failure must not cause failure of an essential architectural, mechanical, or electrical component (Standard Sec. 13.2.3). Component seismic attachments must be bolted, welded, or otherwise positively fastened without considering the frictional resistance produced by the effects of gravity (Standard Sec. 13.4). The effects of seismic relative displacements must be considered in combination with displacements caused by other loads as appropriate (Standard Sec. 13.3.2).
(at roof) Ip = 1.5 (Standard Sec. 13.1.3) Gravity (non-seismic) supports provided every 10'-0" (given) System working pressure (P) = 200 psi (given) ASTM A53 Pipe Fy = 35 ksi, threaded connections (given) D = Dead Load = Wp = 16.4 = 31.7 Longitudinal brace spacing = 80 feet (given) According to Standard Section 13.3.1 (and repeated in Sec. 12.3.4.1), the redundancy factor does not apply to the design of nonstructural components. 18.5.2.2 Seismic Design Forces. (Standard Eq. 13.3-1) (Standard Eq. 13.3-2) (Standard Eq. 13.3-3) Standard Eq. 13.3-1 governs the horizontal seismic force on the piping system. 18.5.2.3 Performance Criteria. System failure must not cause failure of an essential architectural, mechanical, or electrical component (Standard Sec. 13.2.3). Component seismic attachments must be bolted, welded, or otherwise positively fastened without considering the frictional resistance produced by the effects of gravity (Standard Sec. 13.4). The effects of seismic relative displacements must be considered in combination with displacements caused by other loads as appropriate (Standard Sec. 13.3.2).
121715_DesignExamples_15-18.docx