tall buildings
National Conference Centre Hotel, Spencer Dock
The NCC Hotel comprises 35 storeys, 150m in height over an 8m high basement area. The hotel sub-structure is currently under construction on a site adjacent to the National Conference Centre at the quays in Dublin.
The 150m high structure has been designed as a full steel building with the absence of concrete core walls to allow architectural flexibility. The floor system carrying the gravity loads comprises lightweight concrete on metal deck on composite steel beams spanning up to 10.5m on built up steel columns.
The stability of the building is provided by a framed tubular structure which comprises perimeter tube, consisting of steel columns at 4.8m centres with internal moment resisting frames on two grids. This type of lateral load resisting system is known as a "Bundled Tube".
An interesting feature of the NCC Hotel was a Client requirement to provide a clear 24m span and to maximise the open areas and headroom in the basement area. To comply with this request the superstructure had to be transferred to the perimeter columns at level 5. To achieve this A-frames were used to carry the gravity loads and truss frames to carry the lateral loads.
Value: |
€300m estimated |
Area: |
59220m2 |
Services Provided: |
Civil / Structural / Environmental |
Client: |
Spencer Dock Development Company |
