$ file fsum8.  Sum a static loading with dynamic loading in direct frequency 
$ response
diag 8,15
sol 108
include 'SSSALTERDIR:fsuma.alt' $
cend
title = Add static solution to frequency response solutions	fsum
subtitle = fsum alter demo problem, sol 108
echo=both
SPC = 1
mpc=2
DLOAD = 20 $ calls a dload card below
FREQ = 3
set 1011=10,11 $ tip grid points
DISP(SORT2) = 1011
set 1 = 1 $ grounded points
SPCF = 1
set 2 = 2,3 $ mpc points
mpcf = 2
set 110 = 1,10 $ base and tip elements
ELFORCE(phase) = 110
elstress(phase)= 110
strain(phase)= 110 $ rod elements don't output strain.  
$ add quad4 if you want to see strain.  It is in the alter
OLOAD = 1011
loadset=1 $ select the steady load
BEGIN BULK
cvisc,	111,	111,	1	11
pvisc,	111,	100. $ damper between base and tipe
grid,	1,	,	,	,	100.0
=,	*1,	=,	=,	=,	*100.0
=9 $ 11 equally spaced grid points
crod,	1,	1,	1	2
=,	*1	=,	*1,	*1
=8$ 10 rods which join them
prod,	1,	1,	1.0
mat1,	1,	1.e6,	,	,	0.3
$ sort of aluminum, with mass density 0.3 
FREQ1,	3,   	0.0,    0.5,	10 $ 0.0 to 5.0 by incr. of 0.5
$ input freq of 0.0, then others
$ steady load
rload1,	1,	1,	,	,	1 
tabled1, 1 $ 1.0 at zero freq, 0.0 elsewhere
,	0.0	1.0	.1	0.0	100.	0.0,	endt
grav,	10,	,	386.4	0.	0.,	-1. $ 
lseq,	1,	1,	10 $ grav load 10 is darea 1
$ oscillatory load
rload1,	2,	100,	,	,	2
tabled1, 2 $ 0.0 at zero freq., 1.0 elsewhere
,	0.0	0.0	.1,	1.0,	100.	1.0	endt
darea,	100	11,	3,	10000.0 $ oscillatory load at tip
dload,	20,	1.0,	1.0	1,	1.0,	2 $ sum both loads
SPC,    1,      1,      3 $ ground 
mpc,	2,	2,	3,	-1.0	3,	3,	1.0 $lock out 
$ element 2
ENDDATA