*JOINTS

Keywords for ASCII file to be imported in DeepLines

Data cards :

An arbitrary number of lines of the following syntax:

ID_Jo Jo_Type N_No No_ID1 [No_ID2] N_Ch Ch_ID1 [⋯ Ch_ID_N_Ch ] N_Br Br_ID1 [⋯ Br_ID_N_Br]

Purpose :

To define a joint also called tubular intersection. All the beams which participate to a same joint must be of the same type among these two types: - Tube (circular section beam). - Rectangular (or square) section beam.

Details :

Parameter	Description
ID_Jo	Identification name of the joint
Jo_Type	Type of the joint which can take only one of these two values: 0 for a Circular Hollow Section joint 1 for a Rectangular Hollow Section joint
N_No	Number of end nodes at the extremities of the chords line: can take only the value 1 or 2
No_ID1	First end node ID which belongs to the first chord and a brace
No_ID2	Eventually, the last end node ID which belongs to the last chord and a brace only if the number of nodes is N_No=2
N_Ch	Number of chord beams (must be at least equal to 1)
Ch_ID1	First end node ID which belongs to the first chord and a brace
No_ID1	ID of the first chord beam
⋯ Ch_ID_N_Ch	Eventually, subsequent IDs of the chord beams (up toN_Ch)
N_Br	Number of brace beams (must be at least equal to 1)
Br_ID1	ID of the first brace beam
⋯ Br_ID_N_Br	Eventually, subsequent IDs of the brace beams (up to N_Br)

Note

All the nodes, chords and braces IDs must be integers.
Each node ID must reference a connection ID (see *CONNECTION) and must be referenced in the list of nodes (see *NODE). The coordinates of this node correspond to the coordinates of the meeting point of all chords and braces not taking account their eccentricities.
For a CHS joint, each chord or brace ID must be referenced in the list of the rigid beams (see *RIGID). For a RHS joint, each chord or brace ID must be referenced in the list of the flexible beams (see *FLEXIBLE).

Examples:

A joint can be of one of the following kinds:

One end node, one chord beam and a list of braces beams:

The data card in the TDL file will be, if the joint is CHS and its ID is 9000:

  9000 0 1 8 1 12 2 47 49

One node, two chords beams and a list of braces beams:

The data card in the TDL file will be, if the joint ID is 9001:

  9001 0 1 7 2 13 14 3 57 59 56

Two close nodes, three chords beams and a list of braces beams:

The data card in the TDL file will be, if the joint ID is 9002:

  9002 0 2 9 6 3 15 19 17 2 67 69

The generalized kind of the previous one: n close nodes, (n+1) chords beams and a list of braces beams:

The data card in the TDL file will be, if the joint ID is 9003:

  9003 0 2 1 101 5 25 29 28 22 26 5 77 70 79 78 76