Joining main/secondary purlins, posts and rails

There are innumerable possibilities for securing joining main/secondary purlins, posts and rails, depending on the particular requirements called for: aesthetics, accuracy, fire-security, load bearing etc.

System WT fasteners from SFS intec offer an easy method of producing such joints.

The sections are simply abutted, and the fasteners are drilled in directly without pilot drilling, so on-site preparatory work is eliminated.

This all saves time and increases the cost rationale. The hidden fasteners offer aesthetically pleasing results with a high fire resistance.


Whether in the workshop or on site, System WT gives you a fast, efficient method of concealed fastening that offers real support strength.


Strengthening conventional wooden joints

System WT can also be used to strengthen conventional joints like dove-tails, mortise and tenon and halving joints, with massive increases in the support capability.


The choice of fastener depends on the dimensions of the beams to be joined; as well as the load to be supported.

2 WT fasteners in a joint will normally hold up to 9,4 kN (940 Kg) depending on the dimensions, while 4 fasteners in a joint can support up to 16 kN [1600 Kg] axial loading (permissible loads).


Application Notes:

A newly constructed wooden bridge within the SFS HQ compound boasts a span of 31,5 metres and connects two production areas. This was the first example of System WT and WS being used for bridge construction



Technical Report: "Transverse joints" from: Der Zimmermann 7/2002

Applications in Timber Engineering Work


References:


Atomic Logistics Centre in Altenmark - Austria


Fire brigade station in Bad Ragaz, Switzerland

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