STIFFENER Statement

STIFFENER, < set_name >,
     / PROF_SET = < profset_name >
     [ / MIN_LENGTH = < len > ]
     / END1_CUT = (type [,<par1>[, <par2>[,<par3>] ] ])
     / END1_DIST = < d >
     / END2_CUT = (type [,<par1>[, <par2>[,<par3>] ] ])
     / END2_DIST = < d >
     / PATTERN = (<pt1>[,<pt2>[,<pt3>[,<pt4>[,<pt5>] ] ] ] )
     [ / SIZE_LIM = (<size1>[,<size2>[,<size3>[,<size4>] ] ])]
     [ / END_DIST_MOULD ]
     ;

<set_name>

Is a name (string not longer than eight (8) characters) that uniquely identifies a stiffener pattern in a bracket.

PROF_SET

Specifies the name of a set of profile dimensions that shall be used when picking the profile. This set must previously have been defined in a PROFILE statement.

MIN_LENGTH

Normally stiffeners shorter than MIN_LENGTH will not be accepted (unless explicitly asked for by the user). Default value is 700 mm.

END1_CUT

Defines the endcut (type and parameters according to standards) for end 1 of the stiffener (close to arm A of the bracket).

If there is more than one stiffener they are all supposed to have the same endcut.

END1_DIST

Distance from end 1 of the stiffener (close to arm A of the bracket) from the contour of the bracket (see the figure below). Valid for all stiffeners on the bracket.

END2_CUT

Ditto for end 2 of the stiffener (close to arm B).

END2_DIST

PATTERN

Defines the name of the pattern that should be applied for the bracket. The patterns referred to must have been defined before in one or several PATTERN statements.

Several patterns can be defined to be selected depending on the depth of the bracket (denoted Z, see the PATTERN statement above). The first pattern (<pt1 >) will be used when Z <= <size1>,

If a certain pattern is set to an empty string (' ') this means that in 4the corresponding size interval there should not be any stiffener at all.

SIZE_LIM

Cf. PATTERN. The values should always be given in increasing order.

The SIZE_LIM attribute must always be given after the PATTERN attribute.

If the number of values assigned to PATTERN is N, then the number of values assigned to SIZE_LIM must be N-1.

END_DIST_MOULD

See figure below.

Figure 5:17. Options for measuring distance stiffener/contour.

When given the end point of the stiffener will be calculated from the end point on the mould line, otherwise from the closest point on the stiffener. In the latter case there will be a true gap according to END_DIST_MOULD between the stiffener ends and the elements against which they end (in the figure above 'd2' is the distance in case of option END_DIST_MOULD, 'd1' is the distance otherwise (default situation)).