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VK STEEL
DESCRIPTION AND ANALYSIS OF STEEL CONSTRUCTIONS
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1.
The integrity checks that the programme is going to carry
out when you choose the “Topology Check” command, are
the following:
MEMBERS DEFINITION. The programme will attempt to
trace a sub-carrier. As sub-carrier we define the part of the
structure that is not connected through a member to the
rest of the structure. Usually sub-carriers are formed when
we delete members. When a sub-carrier is traced, the user
must either erase it or determine at least one member that
will connect the disconnected carrier to the rest of the
structure.
2.
SUPPORTS DEFINITION. The programme will search for
joints that are defined as support. VK STEEL needs at least
one support so as to do the structural analysis. The
appropriate number of supports depends upon the form
and the dimensions of the structure, as well as from the
static laws. The demand of the programme for at least one
support relates more to the programme’s ability to do the
analysis than to the sufficiency and integrity of the
particular structure’s support. If the relevant message
appears on your screen, you will have to determine the
supports on certain joints where from no more than 1
members run through. If there are no such joints,
theoretical members of support must be designated.
3.
CHECK FOR ZERO VALUES. The programme checks its
records for possible zero values .The programme is unable
to do the structural analysis if it traces a zero value. The
value has to change either by changing the member or by
changing the member’s load.
4.
CHECK FOR MEMBERS LENGTH LIMITS. The programme
checks the structure for possible exceedingly long or short
members.
5.
CHECK FOR MATRIX INTEGRITY STRUCTURE(fast or
extended). There are three kinds of structures: static,
over-static and mechanisms. Mechanisms cannot be
analysed by Statics. As a result, the programme is unable
to do their structural analysis. Consequently, the part of
the structure that constitutes a mechanism must be traced
and then the bearing conditions of its consisting members
VK STEEL USER’S GUIDE
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