TSC-3000-ZD Hybrid
Area of Application
The TSC-3000-ZD Hybrid is a high energy rockfall attenuator/hybrid rockfall fence that has a hinged connection to the base plate and so requires upslope retaining ropes to support the post head. A major difference to traditional fences is that the lower bearing rope has been removed from the base plate to a point lower down the slope (or optionaly completely left out). This allows debris that is stopped by the fence to progress further downslope to a point more suited for removal. It has been tested following the ETAG 27 guidelines.
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.
Base Plate
As with all hybrid rockfall systems, the lower bearing rope has been removed off the base plate to a position further downslope. This allows the debris to move through the system to a lower point. The base plate uses the standard anchor configuration of one tension anchor and one compression anchor.
Lower Bearing Rope Plate
The use of the lower bearing rope is optional. In the case of a hybrid system, it is recommend to use a lower bearing rope that is anchored at a plate with a spacing at least equivalent to the post spacing. This will help contain debris at the bottom of the system. In contrast, if the system is being used as an attenuator, the bearing rope can be completely neglected.
Brake Locks
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. In some cases, it may be desired to limit the activation of brake elements in order to reduce maintenance of following minor events. Both the 1000 and 3000 kJ hybrid systems have been tested with brake locks that prevent the expansion of the brake elements until a per-determined load is applied.Classification
| Model | TSC-3000-ZD Hybrid |
| Style | Hinged System |
| Energy Class | 6 |
| Maximum Energy Level Certified/Tested [kJ (ft∙tons)] | 3000 / 3060 (1106 / 1128) |
| Service Energy Level Certified/Tested [kJ (ft∙tons)] | n/a |
| Approved Heights [m (ft)] | 5.0 - 7.5 (16.4 - 24.6) |
| Verification | Full Scale Tested |
Test Report
| Report Number | 0212/01 |
| Issuing Body | Montanuniversität Leoben |
| Date of Issue | May 9, 2012 |
Primary Net
| Model | Omega-Net 9.0/185 |
| Type | Steel Wire Cable |
| Rope Diameter [mm (inch)] | 9.0 (0.354) |
| Rope Construction | 1 x 7 Spiral |
| Single Wire Diameter [mm (inch)] | 3.0 (0.118) |
| Corrosion Protection | Zn or ZnAl (Class A) |
| Mesh Size [mm (inch)] | 185 x 185 (7.3 x 7.3) |
| Unit Weight [kg/m2(lb/ft2)] | 6.8 (1.39) |
| Mesh Tensile Strength calculated [kN/m (lbf/ft)] | 465 (31,862) |
| Connection to Main Ropes | Threaded |
| Connection to Adjacent Panel | 7/16" 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)] | 24 (0.945) |
| Corrosion Protection | Zn or ZnAl (Class A or B) |
| Brake Element per rope | 2 |
| Brake Element Model | AVT-phx 60/30-3.5 |
Middle Ropes
| Quantity per fence segment | 4 |
| Rope Diameter [mm (inch)] | 24 (0.945) |
| Corrosion Protection | Zn or ZnAl (Class A or B) |
| Brake Element per rope | 4 |
| Brake Element Model | AVT phx 60/30-4.5 |
Retaining Ropes
| Quantity per post | 2 |
| Rope Diameter [mm (inch)] | 24 (0.945) |
| Corrosion Protection | Zn or ZnAl (Class A or B) |
| Brake Element per rope | 1 |
| Brake Element Model | AVT phx 60/30-2.5 |
Support Structure
| Post Type | HEA 300 |
| Integrated Ladder | Rungs every 0.5 m (19") |
| Rope Guides | Integrated |
| Post Weight as tested ([kg (lbs)] | 580 (1278) |
| Base Plate Connection | Tongue and Pin |
| Base Plate Foot Print ([mm (in.)] | 790 x 350 (31 x 14) |
| Base Plate Weight [kg (lbs)] | 75 (165) |
| 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.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.Brake lock;
7.Brake bypass;
8.Omega-Net;
9.Anchor Eye;
10.Anchor
Anchor Forces
| Base Plate Fk,par [kN (kips)] | 302 (68) |
| Lateral Anchor Fk,lat [kN (kips)] | 313 (70) |
| Retaining Rope Anchor Fk,ret [kN (kips)] | 259 (58) |
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 | 40 | 35 | site dependent |
| Lateral | 6 | 40 | 35 | R51-660 |
| Upslope | 12 | 40 | 30 | R38-550 |
Typical Cross Section
1.Post;
2.Rope Guide;
3.Base Plate;
4.Hybrid rope guide;
5.Omega-Net;
6.Retaining Rope;
7.Downslope retaining rope;
8.Brake Element;
9.Anchor Eye;
10.Retaining Anchor;
11.Anchor;
12.Hybrid guide anchor
Typical Layout
1.Post;
2.Hybrid rope guide;
3.Upper Bearing Rope;
4.Lower Bearing Rope;
5.Middle Bearing Rope;
6.Retaining Rope;
7.Downslope retaining rope;
8.Side Stabilization Rope;
9.Retaining Anchor;
10.Lateral Anchor
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