Download View - Daystar Software, Inc.

Chapter 2 Using Multiframe
To set the Member Offsets on a member

Select the member or members to be modified

Choose Member Offsets from the Frame menu

Click on the radio button corresponding to the axes from which the offset
connections will be measured.

Type in the size of the offset connections at both ends of the members.

Click on the OK button
The size of the offset connections may be specified using global or local axes. If local
axes are selected, the offset connections are measured relative to the local axes as defined
by the joints at the end of the members. (see Local Axes between joints below) Note that
this is distinctly different from the true local member axes which are aligned with the
actual position and orientation of a member after the member offset has been applied.
y'
y''
Local Member Axes '
z'
x'
z''
x''
Local Axes (between nodes) ''
If the offset is the same along the length of the whole member, then tick the “Same offset
at both nodes” checkbox and the offsets at the right hand node will be copied across.
Member End Springs
Modelling of semi-rigid connections in Multiframe is performed using Member end
springs. Each member end spring is modelled as an individual item within the structural
model. Furthermore each end spring is associated with only a single member and then
only with one end of the member. This distinction is important as an end spring should
not be considered to be properties of a member. Whenever a spring is specified at an end
of a member a new end spring is added to the model.
To add Member or edit end springs to a member
Page 129