The Bow String Truss
The Bowstring Truss:
There’s a tremendous lack of understanding in the American Fire Service as to what accurately defines and comprises a Heavy Timber Bowstring Truss and the Operational and Safety Precautions that must be recognized, implemented and trained on, in order to achieve and maintain operational excellence, company integrity and firefighter safety on the fireground.
All bowstring trusses are not created equal and do not share the same characteristics when found in a building and occupancy.
They may have the same shape, but shape alone does not define the bowstring truss.
Based on the type, design, construction, materials, age, span, spacing, configuration, occupancy and application there are vast differences AND similarities.
There are significant differences in terminology when referring to them and tactics that should be employed on the fireground- and yes there are prominent differences between east coast and west coast types and tactics.
The Bowstring Truss- They are not All the Same
Do you know what they are?
I’m working on an article series for a major fire service publication with on-line accompaniments that will provide uniformity and clarity on the subject and the much needed continuity so were’ talking the same language.For the mean time let me offer the following terms that some of you may be familiar with – in your world. Here are some Bowstring Type Truss terms:
- The Heavy Timber Bowstring Truss,
- Arch-Rib Bowstring Truss,
- Laminate Cord Bowstring Truss,
- Lattice Bowstring Truss,
- Easybow Truss,
- Mack Truss,
- Summerbell Bowstring Truss,
- Mono-chord Bowstring Truss
- Duo-Chord Bowstring Truss,
- Segmental Multi-Cord Bowstring Truss,
- Tension Rod Bowstring Truss,
- Bowstring Arch Truss,
- Bowstring K-Truss,
- Split-Ring Bowstring Truss…..to name a few.
We’ll be posting lots more on this on CommandSafety.com as well as expanded coverage on Buildingsonfire.com …. Stay Tuned
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