# ===== BEGIN-OF-FILE: pier5_framer.frm =================================
# File:     pier5_framer.frm
# Date:     2026-11-01  (rev 3: cap-level lateral point load, as the pier page)
# Authors:  Gary Argraves & Claude
# Purpose:  Framer deck for the 5-leg test pier: an independent stiffness-
#           method answer key for the pier page's 5-leg decks.
# Usage:    run in Framer; compare the member end moments with the pier
#           page's "5 legs: Framer answer key" decks (Framer prints end
#           moments counterclockwise +, the page clockwise +: change sign)
# Features: cap 3.5 x 4 ft on five 3 x 3 ft legs, 18 ft to cap centreline,
#           four 14 ft spans, fixed bases, no overhangs (the I-84 type)
# Notes:    I as the exact ratio 224:81 (real I: cap 387072, legs 139968
#           in^4).  Long value lines get glued to their ' comment by the
#           compiler and the engine drops the last value; small integers
#           keep the line short.  Moments depend only on the ratio
#           (rotations and sway print scaled by 387072/224 = 1728).
#           Point loads: W = P/C over a strip C = 0.001 ft.
#             gravity strips centred on the load, A = x - 0.0005
#             lateral strip ends at the cap, A = 18 - 0.001: F is centred
#             0.0005 ft below the joint, so it acts at the cap like the
#             pier page's .lateral (offset effect ~0.02 ft-k)
# ======================================================================

.title   Pier test, 5 legs (1 story by 4 bays)

.stories 18                    # leg height, base to cap centreline (ft)
.bays    14 14 14 14           # spans, left to right (ft)
.base    fixed                 # fixed | pinned  (run pinned too: kr=0 check)

.members                       # I: 4 beams, 5 cols (ratio 224:81)
  story 1  beams 224 224 224 224   cols 81 81 81 81 81

.plot    page 1000 800   scale 10 200    # px, ft/in, kip-ft/in

.macro wind
  lateral   40000   17.999  0.001      # F = 40 k at the cap

.macro dead
  gravity  1      2.1   0       56     # cap self-weight, full length
  gravity  1 120000     4.9995   0.001  # P 120 k at x =  5  (span 1, a = 5)
  gravity  1 180000    22.9995   0.001  # P 180 k at x = 23  (span 2, a = 9)
  gravity  1 180000    31.9995   0.001  # P 180 k at x = 32  (span 3, a = 4)
  gravity  1 120000    51.9995   0.001  # P 120 k at x = 52  (span 4, a = 10)

.case Wind Only
  use wind

.case Dead Only
  use dead

.case All Loads
  use wind dead

# ===== END-OF-FILE: pier5_framer.frm ===================================