Ground bearing external stair systems

A ground bearing external stair system typically comprises of items such as surface, balustrade guarding and system accessories.

Uniclass2015 - Ss_35_10_25_35 Ground bearing external stair systems
Reference Notes
NBS Code

30-05-25/135 Ground bearing external stair system

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NRM1

2.5.6 Facade access/cleaning systems

Rules of measurement | Cost benchmarks

2.4.1 Stair/ramp structures (default)

Rules of measurement | Cost benchmarks

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Download manufacturer object defintion template

Manufacturer Product Data template

Complete this electronic spreadsheet to ensure that your Ground bearing external stair systems product information meets the requirements of Level 2 BIM. This is important as it will enable your customers to select, specify and use your products within the BIM environment. Once you have completed this template you can host it on your own website or distribute it to your customers. Please note that we do not host completed product data templates within the BIM Toolkit.

1

Requirement

Visual information to assist the client in identifying project objectives/elements. Expect drawings and diagrams showing important parameters or constraints. The intention is to develop and understand the initial project brief and Client requirements.

Purpose of information

To provide a visual indication of proposals at a Feasibility stage identifying key requirements.

Plan

The above illustration is for Ground bearing external stair systems from the NBS section External stair and ramp systems. This is indicative of the LOD requirements for Ground bearing external stair systems.

2

Requirement

Visual information to provide general principles of the design. Showing arrangement of key features, and key project criteria to suit a client’s brief. General descriptions would be expected to communicate principles of size, location, quantity, scope and context. Expect strategic co-ordination with other professions, such as architects and engineers (civils & highways), to show general principles of the design.

Purpose of information

To provide a visual representation of proposals at a Concept Stage and support general spatial co-ordination of features.

Plan

The above illustration is for Ground bearing external stair systems from the NBS section External stair and ramp systems. This is indicative of the LOD requirements for Ground bearing external stair systems.

3

Requirement

Visual information to provide developed principles of the design to a greater level of detail. Developed coordination between relevant professions, such as architects and civil engineers. Visual development showing co-ordination of landscape feature and primary relationships between other elements of the external works construction.

Purpose of information

To provide a visual representation of proposals, confirming brief for Technical Design stage supporting full spatial co-ordination.

Plan
2D Section

The above illustrations are for Ground bearing external stair systems from the NBS section External stair and ramp systems. This is indicative of the LOD requirements for Ground bearing external stair systems.

4

Requirement

Information to be updated to production level of information and to link drawn information back to external works performance specification.

Purpose of information

To provide sufficient information for contractor to issue to sub-contractors and to refine the external works construction programme.

Plan
2D Section

The above illustrations are for Ground bearing external stair systems from the NBS section External stair and ramp systems. This is indicative of the LOD requirements for Ground bearing external stair systems.

5

Requirement

Visual information to provide finalised set of information to support construction / installation. Visual representations showing final co-ordination between relevant professions, such as architects and engineers, for landscape features and relationships between other elements of the external works construction. Typical installation details produced separately linked to model element and adjacent constructions. Information to be updated to reflect ‘Final Construction Issue’.

Purpose of information

To be updated during the construction process to reflect the final design, and to provide a future reference to sit alongside the O&M Manuals.

Plan
2D Section
2D Detail

The above illustrations are for Ground bearing external stair systems from the NBS section External stair and ramp systems. This is indicative of the LOD requirements for Ground bearing external stair systems.

Download manufacturer object defintion template

Manufacturer Product Data template

Complete this electronic spreadsheet to ensure that your Ground bearing external stair systems product information meets the requirements of Level 2 BIM. This is important as it will enable your customers to select, specify and use your products within the BIM environment. Once you have completed this template you can host it on your own website or distribute it to your customers. Please note that we do not host completed product data templates within the BIM Toolkit.

2

Provide an outline description of the deliverable.

Name Definition
Description A description of the type of object to detail any design intent.
3

Provide information relevant to the specific performance of the deliverable. Information to specify the completion (cleaning, testing, spares, training...) of the deliverable should also be provided in the associated specification.

Name Definition
Design of straight external stair systems Design, Category of loaded area and Arrangement.
Design of spiral and helical external stair systems Design standard, Category of loaded area and Layout.
Structural performance of external ramp and stair systems Design standard and Imposed loading.
Slip resistance of external ramp and stair systems Slip resistance value – water wet (minimum) and Demonstrating performance.
4

Provide information relevant to the specific child products of the deliverable to allow suitable products from manufacturers to be selected. Information covering the completion and execution of the deliverable and its child products should also be provided.

Name Definition
System manufacturer The System manufacturer of the Ground bearing external stair systems.
Site preparation - Preparation products Products such as Non-selective contact herbicides.
Site preparation - Subgrade improvement layer Products such as Base, bed and fill coarse aggregates.
Site preparation - Geotextile below granular sub-base Products such as Plastics sheets.
Site preparation - Granular sub-base Products such as Base, bed and fill coarse aggregates.
Site preparation - Geotextile below laying course Products such as Plastics sheets.
Surface - Layout The Surface - Layout of the Ground bearing external stair systems.
Surface - Going Products such as Clay pavers.
Surface - Rise Products such as Clay bricks.
Surface - Landings Products such as Concrete tactile flags.
Surface - Laying course Products such as Laying course fine aggregates.
Surface - Jointing Products such as Cement gauged designed mortars.
Surface - Dpc Products such as Bitumen-impregnated softboards.
Surface - Applied anti-slip treatment Products such as Slip resistant cast inserts.
Surface - Applied stair nosings Products such as Rigid stair nosings.
Balustrade guarding The Balustrade guarding of the Ground bearing external stair systems.
System accessories Products such as Natural stone surface channels.
5

Provide information relevant to the specific child products of the deliverable to allow for purchasing. Information covering the completion and execution of the deliverable and its child products should also be provided.

Name Definition
System manufacturer The System manufacturer of the Ground bearing external stair systems.
Site preparation - Preparation products Products such as Non-selective contact herbicides.
Site preparation - Subgrade improvement layer Products such as Base, bed and fill coarse aggregates.
Site preparation - Geotextile below granular sub-base Products such as Plastics sheets.
Site preparation - Granular sub-base Products such as Base, bed and fill coarse aggregates.
Site preparation - Geotextile below laying course Products such as Plastics sheets.
Surface - Layout The Surface - Layout of the Ground bearing external stair systems.
Surface - Going Products such as Clay pavers.
Surface - Rise Products such as Clay bricks.
Surface - Landings Products such as Concrete tactile flags.
Surface - Laying course Products such as Laying course fine aggregates.
Surface - Jointing Products such as Cement gauged designed mortars.
Surface - Dpc Products such as Bitumen-impregnated softboards.
Surface - Applied anti-slip treatment Products such as Slip resistant cast inserts.
Surface - Applied stair nosings Products such as Rigid stair nosings.
Balustrade guarding The Balustrade guarding of the Ground bearing external stair systems.
System accessories Products such as Natural stone surface channels.
6

Provide the information specific to the installed deliverable that is required for operation and maintenance. Information covering the detailed maintenance should also be provided in the associated PDF manuals.

Name Definition
Asset type An indication of whether the object is fixed or movable.
Manufacturer Email address for the organisation responsible for supplying or manufacturing the object
ModelNumber The product, item or unit number assigned by the manufacturer of the object.
Warranty guarantor (parts) Email address for the organisation responsible for the parts warranty.
Warranty duration (parts) Duration of parts warranty.
Warranty guarantor (labour) Email address for the organisation responsible for the labour warranty.
Warranty duration (labour) Duration of labour warranty.
Warranty duration unit Duration of warranties (typical value is 'years').
Replacement cost An indicative cost for unit replacement.
Expected life The typical service life of the object.
Duration unit Duration of expected life (typical value is 'years')
Warranty description Description of the warranty content and any exclusions.
Nominal length Typically the larger or primary horizontal dimension.
Nominal width Nominal width of product, typically the characteristic or secondary horizontal or characteristic dimension.
Nominal height Typically the vertical or secondary characteristic dimension.
ModelReference The name of the object as used by the manufacturer.
Shape Characteristic shape of product.
Size Characteristic size of product.
Colour Characteristic or primary colour of product.
Finish Characteristic or primary finish of product.
Grade Standard grading which the product corresponds.
Material Characteristic or primary material of product.
Constituents Optional constituent features, parts or finishes.
Features Other important characteristics or features relevant to product specification.
Accessibility performance The accessibility issue(s) which the object satisfies.
Sustainability performance Description of the sustainability issue(s) which the object satisfies
Code performance The code compliance requirement(s) which the object satisfies
Serial number The serial number assigned to an occurrence of a product by the manufacturer (per instance).
Installation date The date that the manufactured item was installed (per instance).
Warranty start date The date on which the warranty commences.
Tag number The tag number assigned to an occurrence of a product by the occupier (per instance).
Bar code The identity of the bar code (or rfid) given to an occurrence of the product (per instance).
Asset identifier The identification assigned to an asset that enables its differentiation from other assets.