2. Technical Information

KOMBI® Stair and Platform Systems consist of three primary modules designed in accordance with AS 1657 and AS/NZS 1170 under live load conditions

The support module, the platform module and the stair module. Each module is available in a variety of sizes which can then be adjusted.

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Install Videos

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System Assembly

POST SUPPORT ASSEMBLY

  • KOMBI post support structure is design to support a live load of 2.5kPa (250kg/m2).
  • KOMBI supports are available in three standard widths 610mm, 915mm and 1220mm. Custom widths can be manufactured.

 

Kombi Post Support Assembly

Installation Requirements

  • See configuration tables for set out of horizontal braces, bracing straps and lateral braces.
  • Lower horizontal brace struct KB520 is set at 150mm above bottom of post.

 

PLATFORM ASSEMBLY

  • KOMBI Platforms are designed to support a live load of 2.5kPa (250kg/m2 distributed load).
  • KOMBI Platforms are available in three standard external width dimensions 687mm, 992mm and 1297mm. Custom widths can be manufactured.
  • KOMBI Platforms can be joined together to create larger decks where required.
  • For dead loads such as an aircon unit, pallets etc please consult with the SAYFA design team to confirm correct configuration.

Kombi Platform Assembly

 

Installation Requirements

  • Platform mesh aperture to be a maximum of 15mm where persons have access to or work beneath the platform. The GW334 narrow width deck to be used in this application.
  • Guardrail posts to be space dat a maximum of 2000mm centres.
  • Maximum dimensions between underside of handrail to top of kneerail is 450mm.
  • Platform toe board is required where an object could fall from the platform onto an area to which access by persons is a possibility. Maximum gap between toe board and deck is 10mm.

 

STAIR ASSEMBLY

  • KOMBI Stairs are designed to support a load of 2.5kPa live load (250kg/m2).
  • KOMBI Stairs are designed to best suit a 40 degree angle however are suitable angles from 25 - 45 degrees.
  • KOMBI Stairs are available in three standard widths: 610mm, 915mm & 1220mm. Custom widths can be manufactured.

 

Kombi Stair Assembly

Installation Requirements

  • Minimum inside distance between stair stringers to be not less than 600mm.
  • Clear space between handrails/kneerails to be no less than 550mm.
  • The number of treads in a flight must not be less than 2 or greater than 17.
  • Treads are allowed maximum of 5mm variation in spacing as per AS1657:2018.

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Connection Details

KB004

KOMBI Joist to Bearer Bracket

Code

KB004

Material

Aluminium

Use

Connects KOMBI 80 joist to bearers

 

 

KB012

KOMBI 80 Horizontal Support Bracket

Code

KB012

Material

Powder coated stainless steel

Use

Fixes platform cross supports to platform stringers

 

 

KB013.80

KOMBI 80 Angle Bracket

Code

KB013.80

Material

Powder coated stainless steel

Use

90 Degree KOMBI 80 corners

 

 

KB013.180

KOMBI 180 Angle Bracket

Code

KB013.180

Material

Powder coated stainless steel

Use

90 Degree KOMBI 180 corners

 

 

KB014

KOMBI 80 Stair Bridge Mounting Plate

Code

KB014

Material

Powder coated stainless steel

Use

Connects stair stringer to platform structure

 

 

KB015.80

KOMBI 180 Angle Bracket Kit 45 Degrees

Code

KB015.80

Material

Powder coated stainless steel

Use

KOMBI 45 degree angle corners

 

 

KB016.80

KOMBI 80 Post Joining Plate

Code

KB016.80

Material

Aluminium

Use

Joins KOMBI 80 extrusion

 

 

KB016.180

KOMBI 180 Joining Plate

Code

KB016.180

Material

Aluminium

Use

Joins KOMBI 180 extrusion

 

 

KB019

KOMBI Stair Tread Connection Bracket

Code

KB019

Material

Aluminium

Use

Connects stair tread to stringers

 

 

KB021

KOMBI 80 Top Support Bracket

Code

KB021

Material

Powder coated stainless steel

Use

Connects KOMBI 80 post to platform

 

 

KB022

KOMBI 80 Post Through Bracket

Code

KB022

Material

Powder coated stainless steel

Use

Connects KOMBI 80 post to platform

 

KB026

KOMBI 80 Base Support Foot

Code

KB026

Material

Powder coated stainless steel

Use

Secures KOMBI post to ground

 

 

KB031

KOMBI 80 Stair Adjustable Bracket

Code

KB031

Material

Powder coated stainless steel

Use

Connects stair stringer to platform structure

KB034

KOMBI Stair Bridge Mounting Plate

Code

KB034

Material

Powder coated stainless steel

Use

Connects stair stringer to platform structure

 

 

Post Support Bracing Layout

Instructions For Layout

  • Step 1:  Identify correct post height.
  • Step 2: Determine correct post support kit.
  • Step 3:  Assemble post support bracing as per tables below.

Kombi stair and access platform bracing diagram

900 Series Bracing Layout

Kombi Stair and access platform bracing configurations

1200 Series Bracing Layout

Kombi stair and platform system bracing configurations
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Post Support Span Table

Post Support Spacing Information

  • KOMBI Platforms are designed to support a live load of 2.5kPa (250kg/m2).
  • Calculations assume maximum flooring mass of 12kg/m2 (weight of guardrail and aluminium deck).
  • Allowance for floor vibration has not been taken into account in design.
  • Platform deflection has been based on two variables, frequent access (less deflection) and infrequent access (greater deflection). Table below shows post spacings based on above.
  • Lateral bracing is required as per configuration tables.

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Lateral Brace Layout

Kombi Lateral Bracing LayoutLateral Brace Installation

  • KOMBI Platform proprietary design allows freestanding platforms of up to 6000mm.
  • Platforms above 3000mm require a horizontal brace mid span of the post in all bays.
  • For longer platforms exceeding triple span, up to 30m, lateral bracing is require in the first and last bay only.
  • For longer platforms from 30m - 50m, lateral bracing is required in the first, centre and last bay only.

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Platform Configuration

Platform Set Out Guidelines

  • Platform cross supports positioned at 600mm centres.
  • Post supports positioned as close to end of platform as possible. (250mm max from outside edge of platform to centre of post.)

Platform Set Out Guidelines

  • Platform cross supports positioned at 600mm centres.
  • Post supports positioned as close to end of platform as possible. (250mm max from outside edge of platform to centre of post.)

 

 

Platform Set Out Guidelines

  • Platform cross supports positioned at 600mm centres.
  • Post supports positioned as close to end of platform as possible. (250mm max from outside edge of platform to centre of post.)

 

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Technical Statement

Download a copy of the KOMBI® Technical Statement

CLICK HERE

CLICK HERE TO DOWNLOAD A COPY OF THE KOMBI TECHNICAL STATEMENT

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