Features, Specifications and Helpful Notes
 


Truss - Key Features

Standard lengths and types (Other lengths available from 0.5 meter up to 5 meter):
  • 9.84 ft./3 meter
  • 6.56 ft./2 meter
  • 3.28 ft./1 meter
  • Square (Box), Triangular and I-Beam (flat) types
  • Various angle corners, cross and T-junctions available.
Attributes:
  • 11 7/16” (290 mm) overall width
  • 2” approx. (50 mm) outer diameter tubing
  • 3/4” approx. (20 mm) diagonal bracing
  • 0.08” (2 mm) wall thickness
  • 6082-T6 Aluminum alloy composition
  • TÜV approved
  • Conical coupling system
  • Connecting hardware included w/ each segment (1 end)

Crank Stands & Tower Lifters – Key features

  • Anti-corrosion zinc plating
  • Self-lubricating ball bearings
  • Sealed European crank mechanisms
  • Selected models TÜV approved
  • Various models of strength for a wide array of applications
  • Lighting T-bars, speaker/monitor mounts and latching truss adaptors available

Welding Points on Diagonals:

Welds that travel all the way around the diagonal are not necessary up to certain types of applications such as heavy duty and extra heavy duty. Welds that do travel all the way around are usually found on truss that measures 18” wide or larger.

An opening of 3-5 mm wide is necessary in order to allow the inert gas to completely escape the filler tube. This actually creates a stronger, more precise weld for light/medium duty truss such as our F32, F33 and F34 series.

What is a Deflection?

Deflection is the maximum allowable amount of bowing or bending. It is usually measured in inches or millimeters. This determines just how much bending is ‘OK’ and how much is ‘NOT OK’.

 


What is TÜV

TÜV is a 3rd party certification body and a Nationally Recognized Testing Laboratory (NRTL), just like OSHA. TÜV’s range of services includes consultancy, inspections, tests and expert opinions as well as certification and training. All the while, maintaining objectives such as reliability, safety and quality, environmental protection and cost effectiveness.

Established over 130 years ago in Bavaria, TÜV is a globally active company, represented internationally by more than 130 locations and is headquartered in Munich, Germany. On a global scale, over 24,000 product and 12,000 quality management system certifications have been issued by TÜV.

Management Service division: TÜV is an accredited Management Systems Registrar in the US, Europe and Asia, providing ISO 9000, ISO 14001, QS-9000, TE Supplement, AS9100, VDA 6.1, EN 46000, ISO 13485/13488 and ISO/TS 16949 certification services. http://www.tuvam.com

Certificates: A certificate of welding is available confirming such standards set forth by TÜV are carefully observed and maintained throughout the welding processes.

Welding:

What type of welding process is used on the truss? Global truss is made using the TIG welding process. TIG stands for Tungsten Inert Gas. It is also called GTAW (Gas Tungsten Arc Welding). The arc is started with a tungsten electrode shielded by inert gas. A filler rod is fed into the weld puddle separately. This process is more time consuming than other types, but it produces a more precise weld, can be used at lower amperages for thinner metal and can be used on exotic metals.

What is Inert Gas?

Inert gas (a.k.a. noble gas) is any of a group of rare gases that include helium, neon, argon, krypton, xenon, and sometimes radon and that exhibit great stability and extremely low reaction rates. They are used to shield the electric arc from outside contaminants and gases that may react with the weld.

What is UDL and CPL?

UDL stands for Uniformly Distributed Load. This describes how the weight or load is distributed on the truss and how the values found on the loading and deflection table are generated.

CPL stands for Center Point Load. Again, describing the distribution of weight on the truss.Other types of loads are TPL (Third Point Load) and QPL (Quarter Point Load).

How to Calculate the Loading of Circular Truss:

To determine how much weight a circular truss can hold depends on a few characteristics (e.g. the size of the circle, the # of support legs, etc.). Below is a key and step-by-step calculation method easily done with most calculators.

Key:
C = circumference
D = diameter
R = radius
L = length
p (pi) = 3.1416

Step #1
Find the circumference: C = 2p or C = pd
Step #3
Compare this length to those listed on the load table for straight segments of the same type.
Step #2
Take C ÷ number of supports = L
Step #4
Load ÷ 5 for both UDL and CPL.

These are the allowable loads.
#1 - 4xp = 12.57m (C) #3 - 4m UDL = 158 lbs/ft
#2 -12.57m ÷ 3 (# of legs) = 4.19 meters (L) #4 - 158 lbs ÷ 5 = 31.6 lbs/ft. is the UDL 1048 lbs. ÷ 5 = 209.6 is the CPL