TSC-500-ZD Hybrid
Area of Application
The TSC-500-ZD Hybrid is a low energy rockfall catchment fence that has a hinged connection to the base plate and so requires upslope retaining ropes to support the post head. Its design is based on the ETAG 27 tested TSC-500-ZD system with adaptations to allow it to function as a hybrid/attenuator.
Hybrid Functionality
Hybrid systems are designed to absorb rockfall impacts in the upper superstructure, reducing the energy as much as possible, before allowing the material to progress downslope to a lower point where maintenance can be carried out more easily.
Rope Guidances
The upper bearing rope is led through a rope guidance that is integrated on each post head. 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.
Retaining Rope Anchorage
The post head is secured using retaining ropes that lead to an upslope anchor in the middle of the field on either side of the post. This gives side-to-side stability of the post as well as the ability to lead forces into the ground. One anchor is shared between two posts. For this system, there are no brake elements on the retaining ropes.
Lateral Anchorage
Lateral anchoring or internal anchoring of long sections of fences are achieved normally with one anchor having the main bearing ropes attached with brake elements, thimbles and shackles.
AVT-phx Brake Element
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.Classification
| Model | TSC-500-ZD Hybrid |
| Style | Hinged System |
| Energy Class | 2 |
| Maximum Energy Level Certified/Tested [kJ (ft?tons)] | 500 / 527 (184 / 194) |
| Service Energy Level Certified/Tested [kJ (ft?tons)] | 170 (63) |
| Available Heights [m (ft)] | 4.0 - 5.0 (13.1 - 16.4) |
| Verification | Analytical |
| Certification | n/a |
Primary Net
| Model | Omega-Net 7.5/135 |
| Type | Steel Wire Cable |
| Rope Diameter [mm (inch)] | 7.5 (0.295) |
| Rope Construction | 1 x 7 Spiral |
| Single Wire Diameter [mm (inch)] | 2.5 (0.098) |
| Corrosion Protection | Zn or ZnAl (Class A) |
| Mesh Size [mm (inch)] | 135 x 135 (5.3 x 5.3) |
| Unit Weight [kg/m2(lb/ft2)] | 5.6 (1.15) |
| Mesh Tensile Strength calculated [kN/m (lbf/ft)] | 386 (26,449) |
| Connection to Main Ropes | Threaded |
| Connection to Adjacent Panel | 3/8" Shackle |
Omega-Net
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
| Quantity per fence segment | 2 |
| Rope Diameter [mm (inch)] | 20 (0.787) |
| Corrosion Protection | Zn or ZnAl (Class A or B) |
| Brake Element per rope | 2 |
| Brake Element Model | AVT-phx 60/30-2.5 |
Middle Ropes
| Quantity per fence segment | n/a |
| Rope Diameter [mm (inch)] | n/a |
| Corrosion Protection | n/a |
| Brake Element per rope | n/a |
| Brake Element Model | n/a |
Retaining Ropes
| Quantity per post | 2 |
| Rope Diameter [mm (inch)] | 16 (0.630) |
| Corrosion Protection | Zn or ZnAl (Class A or B) |
| Brake Element per rope | n/a |
| Brake Element Model | n/a |
Support Structure
| Post Type | HEA 140 |
| Integrated Ladder | Rungs every 0.5 m (19") |
| Rope Guides | Integrated |
| Post Weight as tested ([kg (lbs)] | 128 (282) |
| Base Plate Connection | Tongue and Pin |
| Base Plate Foot Print ([mm (in.)] | 650 x 200 (26 x 8) |
| Base Plate Weight [kg (lbs)] | 29 (64) |
| Anchors per base plate | 2 |
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.Anchor Eye;
3.Anchor
Lateral Anchorage
1.Side Stabilization Rope;
2.Upper Bearing Rope;
3.Lower Bearing Rope;
4.Brake Element;
5.Brake lock;
6.Anchor Eye;
7.Anchor;
8.Omega-Net
Anchor Forces
| Base Plate Fk,par [kN (kips)] | 88 (20) |
| Lateral Anchor Fk,lat [kN (kips)] | 183 (41) |
| Retaining Rope Anchor Fk,ret [kN (kips)] | 171 (38) |
Typical Recommended Anchors Based on Steel Grade
| Anchor Position | Quantity 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 Plate | 12 | 25 | 22 | site dependent |
| Lateral | 2 | 28 | 25 | R32-400 |
| Upslope | 7 | 28 | 25 | R32-400 |
Typical Cross Section
1.Post;
2.Rope Guide;
3.Base Plate;
4.Hybrid rope guide;
5.Omega-Net;
6.Retaining Rope;
7.Anchor Eye;
8.Retaining Anchor;
9.Anchor;
10.Hybrid guide anchor
Typical Layout
1.Post;
2.Hybrid rope guide;
3.Upper Bearing Rope;
4.Lower Bearing Rope;
5.Retaining Rope;
6.Downslope retaining rope;
7.Side Stabilization Rope;
8.Retaining Anchor;
9.Lateral Anchor
Top of Page