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Section 5
5-31
This example creates the 510 members of a ten story 3 X 4-bay
structure (this is a continuation of the example started in Section
5.12). The first input line creates the twenty columns of the first
floor:
1 1 21 ; 2 2 22 ; 3 3 23 ; ... ; 19 19 39 ; 20 20 40
The two commands (21 21 22 23 and REPEAT 4 3 4) create 15
members which are the second floor "floor" beams running, for
example, in the east-west direction:
21 21 22; 22 22 23; 23 23 24
24 25 26; 25 26 27; 26 27 28
... ... ...
33 37 38; 34 38 39; 35 39 40
The next two commands (36 21 25 39 and REPEAT 3 4 4) function
similar to the previous two commands, but here create the 16
second floor "floor" beams running in the north-south direction:
36 21 25; 37 22 26; 38 23 27; 39 24 28
40 25 29; 41 26 30; 42 27 31; 43 28 32
... ... ... ...
48 33 37; 49 34 38; 50 35 39; 51 36 40
The preceding commands have created a single floor unit of both
beams and columns, a total of 51 members. The REPEAT ALL now
repeats this unit nine times, generating 459 new members and
finishing the ten story structure. The member number is incremented
by 51 (the number of members in a repeating unit) and the joint
number is incremented by 20, (the number of joints on one floor).