STAAD.Pro

How to Use Member Splitter in Staad Tools

Expand a STAAD MEMBER PROPERTY list so each member gets its own line, or compact split lines back into TO ranges — including BY steps and hyphen ranges.

StruTools · 28 Aug 2026 · 5 min read

Member Splitter replaces Staad Member Splitter. Paste one or more property assignments. Split writes one line per member. Compact rebuilds consecutive IDs into TO ranges while keeping the property text.

What it does

The original Convert button replaced line breaks with spaces, found the first non-numeric property keyword (TAPERED, PRISMATIC, TABLE, and so on), and wrote one property line per member. The browser tool keeps that split, and exposes the reverse compact that the desktop helper never wired to Convert.

  • Individual IDs stay as listed: 1 4 9 TAPERED … becomes three lines.
  • An ascending TO range adds every intermediate integer.
  • TO … BY n steps through the range (1 TO 7 BY 2 → 1, 3, 5, 7).
  • Hyphen ranges such as 1-3 expand the same way as TO.
  • A descending expression such as 5 TO 1 keeps both endpoints 5 and 1, matching the desktop loop — it does not invent 4, 3, 2.

Workflow

  1. Paste the MEMBER PROPERTY assignment from the STAAD input.
  2. Click Split to get one member per line, or Compact to rebuild TO ranges for members that share the same property text.
  3. Copy or download the right-hand pane and paste it back into the STAAD input editor.
  4. Clear both panes before the next assignment so two different TAPERED strings are not mixed.

Multiple input lines

Two different property assignments stay in source order. Compact only joins consecutive member numbers that already share the same property string. Members 1, 2, 3 and 5 with the same TAPERED text become 1 TO 3 5 plus that text.

Common mistakes

  • The first non-numeric token is treated as the property keyword. Do not put comments before TAPERED / TABLE / PRIS.
  • Descending TO does not expand backwards. You get the two endpoints only.
  • Compact is for identical property text. Different flange sizes will not be merged.
  • This is a list rewriter, not a section checker. Use Built-up Check for mill limits.

This article provides general educational information. Project-specific structural design, calculations and drawings should be reviewed by appropriately qualified engineering professionals and checked against applicable project requirements and standards. StruTools does not replace engineering judgement or professional design review.

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