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Instructions for stair connections
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- Instructions for stair connections
The most efficient, economic and sustainable way to connect concrete stairs and landings.
Cost-saving:
- Thinner landings (20-25% reduce concert consumption)
- Documented and certified solution
- Fast installation
- No need for shimming, leveling adjustment
- No extra lifting point on the stair flight needed
- Good tolerances
- Fire protection
- Safe to install
- Access stairs in the building process
Requirements for the stairs:
- Surface, Terazzo, see TSS
- Impact sound reduction see Memo no 47
- Fire protection, see page 9 memo 31 and Memo no 45
Download the guide:
 TSS – Terrazzo Stair Support Inner tube pulled out with a wire and return rope. No visual marks in the surface of the landing. |
 RVK – Repos Vegg Konsollfritt |
IC deliver several solutions for impact sound insulation, see Memo 47 and IC Academy film stair engineer.
 | TSS102 with vertical rubber flange, reduce sound impact by 20-25 dB. |
 | TSS/RVK with IC Box 100 SRU, reduce impact sound by 20-28 dB. |
 | TSS/RVK with vertical rubber flange, reduce sound impact by 10-12 dB. |
 | Fire protection is taken care of in a good way when using IC stair connectors. After installation the TSS/RVK will be completely covered with concrete. Fire rating in accordance with Eurocode CEN/TC 250 |
| Required fire resistance | R30 | R60 |
| Minimum cover «C» mm (Norwegian regulations) | 25 | 40 |
| Article no | Description | Capasity | Picture |
| TSS 60 P | Slim design allows thinner landings all the way down to ≥120 mm (full capacity 170 mm). Outer tube made of recycled HDPE. | 57kN |  |
| TSS 101 | Connector capacity up to 96 kN in a minimum 170 mm thick landing increasing to 100 kN for 200 mm thick landing. | 100kN |  |
| TSS 102 | Included impact sound reducing rubber. Connector capacity up to 96 kN in a minimum 200 mm thick landing increasing to 100 kN for 265 mm thick landing. | 100kN |  |
| Article no | Description | Picture |
| IC Box 100 | Recess box, out-block. Made of 100% recycled HDPE |  |
| IC Box 100 SRU | Recess box with SRU sound reduction, Recycled HDPE. |  |
| Special made recess box for walls that is cast with sliding formwork. |  |
| Article no | Description | Capasity | Picture |
| TSS 20 FA | Stair flight to landing, connector with leveling adjustment. | 20 kN |  |
| TSS 25 L | Stair flight to landing, connector with leveling adjustment and lifting device. No need for additional local reinforcement. | 25 kN |  |
| TSS 60 P | Slim design allows thinner landings all the way down to ≥120 mm (full capacity 170 mm). Outer tube made of recycled HDPE. | 57 kN | |
| Which model and capacity to choose ? | |
Our calculation tool helps you to find the correct model Ideas! TSS/RVK should be located as close to the front edge as possible to avoid uplift/negative forces in the rear end of the element. |  |
Reinforcement of stair connectors TSS/RVK landing-wall | |
| Standardized local reinforcement for TSS/RVK, see Memo 55, TSS / RVK, reinforcement |  |
| TSS 25 L, see Memo 65A TSS25L no need for additional local reinforcement, the backplate and flat steel is enough. Vertical load 25 kN, |  |
| Picture illustrate additional reinforcement for 12 kN lifting capacity.. |  |
| TSS 20 FA, see Memo 65 |  |
Slab thickness and edge distances
Se Memo 55, TSS / RVK, reinforcement
a) without simultaniously acting horizontal design support reaction.
b) with simultaniously acting horizontal design support reaction.
| Product series | Slab thickness (mm), a) | RVK 60 P | TSS 60 P | TSS 101 TSS 101 G | RVK 101 RVK 101 G | TSS 102 TSS 102 G |
| Load category a) | ||||||
| 120 | 34 | 34 | - | - | - | |
| 150 | 46 | 46 | - | - | - | |
| 170 | 57 | 57 | 96 | 96 | - | |
| 200 | 57 | 57 | 100 | 100 | 96 | |
| 265 | 57 | 57 | 100 | 100 | 100 | |
| Load category b) | ||||||
| 160 | 160 | 180 | 180 | 180 | ||
| 80 | 80 | 100 | 100 | 100 |
1) The TSS102 may in special cases fit into slabs with t=200mm if reduced concrete cover is acceptable. The unit should be placed centric in the slab, which will slightly reduce the height x8 below the minimum value stated in Table.
