problem description
title="Distributed load sample problem (Logan #5.22, p. 192)"
nodes=3 elements=2

nodes
1 x=0	y=0	constraint=fixed
2 x=10		constraint=pin
3 x=20		constraint=free

beam elements
1 nodes=[1,2] material=steel load=half1
2 nodes=[2,3] material=steel load=half2

material properties
steel E=29e6*12*12 Ix=150/12/12/12/12 A=1.0

distributed loads
half1 direction=perpendicular values=(1,0) (2,-2000)
half2 direction=perpendicular values=(1,-2000) (2,-4000)

constraints
fixed Tx=c Ty=c Rz=c
free  Tx=u Ty=u Rz=u
pin   Tx=c Ty=c Rz=u

end