What is numbering and how to plan it

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Added January 16, 2020 by Tekla User Assistance tekla.documentation@trimble.com

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What is numbering and how to plan it

What is numbering and how to plan it

Before you can create drawings or accurate reports, you need to number all parts in the model. You do not need to number the model before you create general arrangement drawings.

Numberingprocess of assigning position numbers to parts, cast units, assemblies, or reinforcement

In Tekla Structures, the position numbers assigned in the numbering are shown in marks and templates, for example.

is the key to the production output, for example, drawings, reports, and NC files. Numbers are also needed when you export models. Part numbers are vital in the fabrication, shipping, and erection stages of construction. Tekla Structures assigns a mark to each part and assembly/cast unit in a model. The mark includes part or assembly prefix and position numberidentifier that is assigned to all similar parts, assemblies, cast units, or reinforcement

Position number consists of a prefix, separator, and running number. The prefix is part of the position number, identifying a numbering series. The running number is part of the position number, and is the assigned number in the numbering series, based on the start number. The separator is an optional character, such as a slash, that separates the prefix and the running number.

In Tekla Structures, the position numbers assigned in the numbering are shown in marks and templates, for example.

In the US, the term piece mark or ship mark is used to refer to a position number.

, and other elements, such as profile or material grade. It is useful to identify the parts with numbers to see which parts are similar and which different. Identical parts within a numbering seriesset of identifiers defined by the user, based on which Tekla Structures compares parts, assemblies, cast units, or reinforcement with each other during the numbering and gives position numbers

Numbering series is defined by a prefix and a start number.

The user can, for example, allocate separate numbering series to different phases or part types.

have the same number, which makes the planning of the production easier.

We recommend that you plan the numbering in an early phase of the project. If other users are using the same model, it is even more important to make a numbering plan that everybody in the project follows. You should have the numbering ready before you create the first drawings and reports.

When planning the numbering, it can be useful to number the model in phases, for example first floor of the building first, then the second, and so on.

Give start numbers in wide ranges so that you do not run out of numbers within a numbering series, and that any numbering series does not overlap with another. For example, start the first floor with the start numberfirst number of a numbering series

1000 and the second with start number 2000.

If the numbering of a part or assembly is not up to date, a question mark (?) is displayed in the part labelset of part properties that the user has selected to be displayed with the part in a model view

and in the Inquire object dialog box, for example:

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