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Reinforcement of cantilevered concrete deck - Søsporten - Åarhus C, Denmark
Structural reinforcement
Reinforcement of cantilevered concrete deck - Søsporten - Åarhus C, Denmark
Søsporten is a building originally constructed in 1936 for Aarhus rowing club. Aarhus Municipality decided that the building should be preserved and therefore a renovation project was developed with the re-use of existing materials. The project has been nominated for the Renover Award 2023.
- Topic
- Reinforcement of cantilevered concrete deck
- Object
- Søsporten
- City
- Åarhus C
- State
- Aarhus
- Country
- Denmark
- Date
- 2021
Situation
On the exterior of the first floor, a cantilevered balcony runs along the entire gable. Due to the new construction with membrane and post-insulation, as well as decking and retrospective design requirements, the cantilevered porch had to be reinforced. Here, the existing clamping torque had to be increased to ensure the safety level of the load-bearing capacity. One of the challenges was that the main staircase to the first floor is located partly in the gable and the forces must be transferred to the load-bearing cantilevered deck. This means that a part of the cantilevered balcony entrance next to the stairwell is suspended.
Solution
To make up for the lack of capacity, the concrete deck needed to be reinforced at the gable end with the cantilevered deck and the carbon fibre solution was chosen as it does not add significant weight. As the building is also located in an aggressive maritime environment, carbon fibre also has the advantage of being a non-corrosive material.
S&P C-Laminate bonded with S&P Resin 220 HP on the top side, which had previously been levelled out with S&P Resin 230 HP, were used. The underside of the cantilevered deck outside the stairwell was reinforced with NSM solution, i.e. a solution where grooves are milled into the deck layer and carbon fibre rods are glued in. Carbon fibre rods S&P C-Rod with a diameter of 8 mm were used here together with adhesive type S&P Resin 220 HP.
Material
S&P C-Laminate + S&P Resin 220 HP + S&P Resin 230 HP on topside / S&P C-Rod + S&P Resin 220 HP on underside
Image Gallery
Seaside gable end with cantilevered balcony entrance.
Topside reinforcement with carbon fibre S&P C-Laminate 120/1.4mm.
Penetration in the façade wall to the anchorage zone inside the building.
Suspended part of the porch, which is reinforced on the underside in the foreground of the image.
Reinforcement of topside concrete deck.
Underside reinforcement with grooved/glued carbon fibre round bars ø8mm (NSM=Near Surface Mounted).
Service
Contact person
Morten Frost Kamphøvener
Morten FrostKamphøvener
Nordic Business Manager
- Location
S&P responsible site
Denmark
Simpson Strong-Tie A/S
Hedegaardsvej 11
DK-8300 Odder
CVR 65653818
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