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Technical Manual

 
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Tube Sizes

  

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Guide to Guardrail Bay Sizes

Download the Technical manual and refer to the guide chart at the top of page 12.

Set screws

All fittings are supplied with the set screws fitted as standard. The set screws are case hardened and proprietary coated to increase life. The set screws when tightened to a torque of 39 Nm gives a slipload of 900Kg to a safety factor of 2.

Cutting Charts

Sloping: Download the Technical Manual and refer to the charts on page 13 and 14
Level: Download the Technical Manual and refer to the charts on page 13
Bases: Download the Technical Manual and refer to the charts on page 14

Weather Caps 192 installation process

Download the Technical Manual and refer to the step by step process on page 14.

Heavy Duty Gate

For details on the correct method for building a gate wider than 1000mm. Download the Technical Manual and refer to the design for both the gate and heavy duty hinge on page 14.

Fitting specification

Tubeclamps fittings are an iron casting and galvanised to BS EN ISO 1461.

Selecting a tubeclamps™ fitting

Selecting a tubeclamps™ fitting is simple. Select the suitable fitting for the application required, select the suitable size of tube for the application required and combine the 2 reference numbers. I.E. Long Tee to suit 48.3 o/d tube = 104D.

General Instructions for the use of Tubular Fittings

GUIDELINES ON THE USE OF FITTINGS, DESIGN OF STRUCTURES AND INSTALLATION

All grub screws must be tightened to a torque of 39Nm.
Always ensure that the pointed, cutting end of the grub screw is placed against the tube and that the flat end points away from the tube.
Wherever possible, fittings should be assembled with the open faces of grub screws pointing downwards (or horizontally) to minimise collection and retention of rainwater etc.
• Do not re-use grub screws; replace with new screws from Tubeclamps Ltd.
• Do not modify fittings.
• Do not use fittings that are (or appear to be) damaged or defective in any way.
• Do not mix `tubeclamp` fittings with other brands, use only genuine fittings to which these instructions relate exclusively.

SPECIFIC LIMITATIONS ON THE USE OF TUBULAR FITTINGS

Types 149 and 150: must not be used to join top and mid rails within the same bay, not more than one joint is allowed between structural supports.
Note: [BS 5395] does not permit a joint to be further than 150mm from a structural support.
Type 150 must not be used for structural joints or to take a tensile load.
Types 148, 173, 167, 168 and 169: must not be used to support bending loads; entire structures must not be constructed from swivel fittings for reasons of stability.
Types 131: must not be used as base flanges to support guard railing, balustrades or dependent structures.
Types 132 and 152: must be used with fixing holes orientated in line with the applied load for maximum resistance.
Types 146: when used with spacers, maximum fixture thickness must be in accordance with the fixing manufacturer's recommendations.
Type 143: must not be used as a side-fix balustrade flange; use type 144 or 145 instead.
Types 138 and 140: when used as top and bottom pairs in gate hinges, the pins must be orientated in opposite directions to ensure gate retention.
The 'heavy duty gate hinge' design should be used (as detailed under gate construction on page 14 of the technical manual) for all wide or heavy gates.
Types 170 and 171: must be used with the retention clips as supplied.

JOINING TUBES WITHIN FITTINGS

Tube must not be joined within any barrel having only one grub screw unless first secured with a type 150 splice.
De-burring of cut tubes: In order to avoid the danger of cuts or snagging, cut ends must be de-burred, especially when used with types 150 or 133.
NOTE:
Combination (swivel) Fittings (167,168,169 and 173) are assembled from “M” (male) and “F” (female) fittings; special instructions apply.
The 173F fitting is used in the assembly of all swivels.

THE DESIGN OF STRUCTURES & INSTALLATION

Designers must be satisfied as to the fitness for purpose of such a construction and must refer to the current releases of the following standards or parameters, as applicable:-
Stated design parameters must be used.
Pin joint assumptions must be made for all fittings except those specifically classified as fixed joints: types 132, 152, 144, 145, 134 or 146. Cross bracing may be required to ensure the stability of structures, especially racking, and to protect from accidental impact, for example from fork lift trucks.
EN 14122 (Safety of machinery)
Note: National standards also apply:
BS 5395 (Stairs, ladders and walkways);
BS5950-1 (Structural use of steelwork in buildings);
BS 6180 (Barriers in and about buildings);
BS 6399 (Loading for buildings);
BS 7818 (Pedestrian restraint systems).
Building regulations parts K & M and reports issued from time to time by the Health & Safety Executive.

tubeclamps™ fittings are designed for use with tube produced to EN 39 (scaffold tube), EN 10210-1 (structural steel) as well as ISO 65/BS 1387 (gas tube).
When designing structures with vertical and horizontal members that cross within a fitting, tube continuity must be maintained for the vertical, unless there is a specific structural reason to do otherwise.
Anchors and fixings must be specified to take account of the fixture thickness and design loads according to the manufacturer's recommendations.
tubeclamps™ fittings are galvanised iron castings and are supplied, as standard, with coated and hardened steel grub screws. They are suitable for use in the construction of tubular structures using standard galvanised steel tubes.
Attention must be paid to the nature, mechanical properties and condition of the civil structure or substrate to which the structure is to be fixed to ensure its ability to withstand the design loads.
Consideration must be given to the environmental conditions (e.g.: saline, cyclical loads or vibration) which the structure will have to endure in service and the possible implications for service life.
Regular inspections to check the integrity and condition of structures and the tightness of grub screws is recommended.
tubeclamps™ fittings must not be used in scaffolding applications
tubeclamps™· fittings must not be welded

TRANSPORTATION AND STORAGE

There are no particular limitations as to transportation and storage of fittings other than they should be kept in a dry and ventilated environment.

ALWAYS REFER TO OUR TECHNICAL BROCHURE FOR FURTHER INFORMATION ON THE USE OF FITTINGS AND THEIR ASSEMBLY AND INSTALLATION.

IN CASE OF DOUBT, PLEASE CONTACT TUBECLAMPS LTD.