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Hull and Outfitting

Syntax 3

  • Last UpdatedDec 08, 2025
  • 3 minute read

The images below illustrate different situations in which a bracket can be generated according to syntax 3.

In the images, LIM means a limit, F a flange, L a shell profile and S a stiffener on an adjacent panel.

Except for a connection with a three-arm bracket, any of the involved panels can be the current one.

<syntax_3>::=

      [,A= <length_A>]
      [,B= <length_B>]
      [,K= <depth>]

           <F_ref>
      / { }
           LIM= <lim_no>

A

The length of arm A. Must always be give for two-arm brackets

If A=<a> (<10) then A=<a>*B.

For three-arm brackets A will be calculated from B as described in syntax 2 above (or from depth).

B

The length of arm B.

If B=<b> (<10) then B=<b>*A.

If B is not given for a two-arm bracket it will be set equal to A.

If B is not given for a three-arm bracket it will be calculated from A as described in syntax 2 above (or from depth).

K

See Syntax 2.

The definition of the position of the bracket arms is done in the following way:

  1. The arm along the current panel is defined after the first slash via a reference to a flange on the panel or to one of its limits.

  2. The position of the arm B can either be made via an external profile reference or limit on an adjoining panel or via a line, all of it before the first slash, or via a reference to a panel or hull curve.

    If a line is used, it must have such a direction that the bracket is to the left of the line if SI2 is not given.

  3. The position of the arm A for a three-arm bracket can be defined in the same way as for arm B, but following the second slash

SI2

Defines the position of the bracket relative to the limit before the first slash. Not relevant for profile and limit references and never for three-arm brackets.

When given together with a line it makes the direction of the line irrelevant.

<side_info>, see SIDE, Common Syntax

Regarding <line>, <line_1>, <line_2>, <ext_prof_ref>, <F_ref>, see General Layout of a Statement.

<panel>::= <curve>::= <name>

<lim_no>::= <integer>

Examples:

Bracket KC belonging to a deck web.

BRA, KC, COR=2, PSIDE=AFT, DOUBLE, A=2600, MAT=15, 'AA465-7', F1/F1;

Bracket B, one arm of which is defined by a line.

Note: The bracket will lie to the left of the line.

BRA, B, COR=2, SYNT=3, MAT=15, PSIDE=TOP, A=500, U=23200, T=270/LIM=4;

A bracket BR connecting a double floor bottom to a transversal.

BRA, BR, MAT=12, A=500, TR75/LIM=2;

A bracket along a limit with arm B restricted by a panel surface.

BRA, KL, MAT=12, A=700, ‘AB123-4’, SI2=PS/ LIM=3, ... ;

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