Area of Application

The TS-5000-ZD is a high energy rockfall catchment fence that has a hinged connection to the base plate and so requires upslope retaining ropes to support the post head. It has been tested according to the ETAG 27 guidelines and carries a CE marking. It fully meets the requirements for Consequence Class 3 of Appendix E of the ONR 24810 “Technical protection against rockfall – Terms and definitions, actions, design and construction, and monitoring and maintenance” and carries the highest performance rating available according to the Austrian Department of Avalanche and Torrent Control’s rockfall catchment fence type list. As such, it may be used on projects with all levels of risk.

Rope Guidances

The upper and lower bearing ropes are led through a rope guidance that is integrated on each post head and base plate. A similar guidance is used for the middle ropes. Each guidance provides large curved surfaces to help protect the ropes and allow unobstructed movement. The guidance is designed to be robust and with no movable parts in order to ensure longevity and zero maintenance.

Integrated Ladder

Each post has an integrated ladder composed of rungs spaced at 50 cm intervals in the webbing of the I-beam. The ladder assists in the installation of the fence as well as routine inspection and maintenance.

Base Plate

Hinged systems have independent base plates that are connected to the post using a pin. The lower bearing rope is led through a guidance attached to the base plate similar to that of the head of the post. The base of the post is secured to the foundation/subsurface through two rock or soil anchors, the front compression anchor oriented perpendicular to slope while the rear tension anchor is at 45 degrees to the base plate.

Lateral Anchorage

Lateral anchoring or internal anchoring of long sections of fences are achieved normally with four anchors having the main bearing ropes and the four middle ropes attached with brakes, thimbles and shackles. Brake elements on the middle ropes allow for more elongation than the upper and lower brakes to maximize energy absorption while maintaining a large residual height.

AVT-phx Brake Elements

The AVT-phx series of brake elements are steel coils that unravel when a force is applied. The gauge, width and number of coils can be specified in order to control the amount of energy absorbed and the total displacement. With no moving parts, these are some of the safest and most reliable brakes in the industry.
ModelTS-5000-ZD ETA
StyleHinged System
Energy Class8
Maximum Energy Level
Certified/Tested [kJ (ft?tons)]
5000 / 5315
(1844 / 1960)
Service Energy Level
Certified/Tested [kJ (ft?tons)]
Approved Heights
[m (ft)]
6.0 - 7.0
(19.7 - 23.0)
VerificationFull Scale Tested
CertificationETAG27 / EAD 340059-00-0106 certified
Test Report Summary
Test Height
[m (ft)]
Maximum Elongation
[m (ft)]
Residual Height ClassA (≥50%)
Component FailureNone
Primary Net OpeningNone
Secondary MeshNone
European Technical Assessment ETA
Issuing BodyOIB Austrian Institute of Construction Engineering
Date of IssueOctober 28, 2010
Certificate of Conformity
Certificate Number1379-CPR-022/14
Issuing BodyTVFA-ZERT TU Graz
Date of IssueJuly 26, 2017
Primary Net
ModelOmega-Net 10.5/180
TypeSteel Wire Cable
Rope Diameter
[mm (inch)]
Rope Construction1 x 19 Spiral
Single Wire Diameter
[mm (inch)]
Corrosion ProtectionZnAl (Class A)
Mesh Size
[mm (inch)]
180 x 180
(7.1 x 7.1)
Unit Weight
Mesh Tensile Strength
calculated [kN/m (lbf/ft)]
Connection to Main RopesThreaded
Connection to Adjacent Panel1/2" Shackle

The primary net material used in Trumer systems is called the Omega-Net. It is a steel cable net made from spiral rope that has thick individual wires to resist abrasion. The strands of rope are pre-bent into arcs resembling an omega shape and then woven together to make the net. This process yields an extremely strong net with high flexibility and energy absorption characteristics.

Bearing Ropes
per fence segment
Rope Diameter
[mm (inch)]
Corrosion ProtectionZn or ZnAl (Class A or B)
Brake Element
per rope
Brake Element ModelAVT-phx 80/30-3.5
Middle Ropes
per fence segment
Rope Diameter
[mm (inch)]
Corrosion ProtectionZn or ZnAl (Class A or B)
Brake Element
per rope
Brake Element ModelAVT phx 80/30-4.5
Retaining Ropes
per post
Rope Diameter
[mm (inch)]
Corrosion ProtectionZn or ZnAl (Class A or B)
Brake Element
per rope
Brake Element ModelAVT phx 80/30-2.5

Support Structure
Post TypeHEB 400
Integrated LadderRungs every 0.5 m (19")
Rope GuidesIntegrated
Post Weight
as tested ([kg (lbs)]
Base Plate ConnectionTongue and Pin
Base Plate Foot Print
([mm (in.)]
790 x 350
(31 x 14)
Base Plate Weight
[kg (lbs)]
per base plate
Post Base Support
1.Post; 2.Rope Guide; 3.Base Plate; 4.Hinge Pin; 5.Anchor Nut; 6.Washer; 7.Anchor; 8.Micropile Tube
Retaining Rope Anchorage
1.Retaining Rope; 2.Brake Element; 3.Anchor Eye; 4.Anchor
Lateral Anchorage
1.Side Stabilization Rope; 2.Upper Bearing Rope; 3.Lower Bearing Rope; 4.Middle Bearing Rope; 5.Brake Element; 6.Anchor Eye; 7.Anchor
Anchor Forces
Base Plate
Fk,par [kN (kips)]
Lateral Anchor
Fk,lat [kN (kips)]
Retaining Rope Anchor
Fk,ret [kN (kips)]
Typical Recommended Anchors Based on Steel Grade
Anchor PositionQuantity
per 50 m
10 m post spacing
500/550 MPa
(e.g. GEWI)
670/800 MPa
(e.g. GEWI Plus)
min 470 MPa
(e.g. IBO)
Base Plate124035site dependent
Typical Cross Section
1.Post; 2.Rope Guide; 3.Base Plate; 4.Omega-Net; 5.Retaining Rope; 6.Brake Element; 7.Anchor Eye; 8.Retaining Anchor; 9.Anchor;
Typical Layout
1.Post; 2.Upper Bearing Rope; 3.Lower Bearing Rope; 4.Middle Bearing Rope; 5.Retaining Rope; 6.Side Stabilization Rope; 7.Retaining Anchor; 8.Lateral Anchor
MEL Pre-test Photo, Side
MEL Post-test Photo, Side
MEL Pre-test Photo, Front
MEL Post-test Photo, Front
Top of Page