Seismic Demands in Nonstructural Components

This calculation determines nonstructural component seismic design forces per ASCE 7 or NBC 2020.

Input:

FₚWₚhhzz02004006008000204060Force (lb)z (ft)x: 300 y: 0x: 330 y: 3x: 360 y: 6x: 390 y: 9x: 420 y: 12x: 450 y: 15x: 480 y: 18x: 510 y: 21x: 540 y: 24x: 570 y: 27x: 600 y: 30x: 630 y: 33x: 660 y: 36x: 690 y: 39x: 720 y: 42x: 750 y: 45x: 780 y: 48x: 810 y: 51x: 840 y: 54x: 870 y: 57x: 900 y: 60x: 0 y: 30x: 600 y: 30x: 600 y: 0

Output:

    Definitions
    • Fp = Horizontal seismic design force applied at the center of gravity
    • Wp = Component weight
    • z = Height from the point of attachment to the seismic base
    • h = average roof height of the structure from seismic base
    • SDS = Design spectral acceleration at short periods
    • Ip = Component importance factor (1.0 or 1.5)
    Component parameters
    • Component = Custom
    • Amplification factor: ap = 1
    • Overstrength factor: Ω0 = 1 (for anchorage design in concrete or masonry)
    • Response modification factor: Rp = 1
    Calculate the horizontal design force, Fp
    • lb
    • lb
    • lb
    User Notes: