Household goods pavilion, 30 × 60 m, Atyrau
A retail pavilion measuring 30.0 × 60.0 metres and 7.5 metres high. The building was delivered in two phases: single-storey at first, but the frame and foundations were designed from the outset for a future floor. Some time later the second storey was installed inside the finished, operating building — without touching the columns, the roof or the cladding.
Project at a glance
- Dimensions on axes
- 30.0 × 60.0 m
- Eaves height
- 7.5 m
- Ridge level
- 10.1 m
- Truss span
- 15 m
- Frame pitch
- 5.0 m
- Frame weight
- 42.6 tonnes
Frame design: Molibden Teplo Stroy LLP, Tekla Structures. Phase-two floor: 17.09-62 KM, Obninsk Stal Proekt LLC, 2017
Structural solution
The structure consists of columns, trusses, purlins and bracing. Phase one was built single-storey; phase two added an intermediate floor inside the existing volume.
The reserve was built into phase one
Columns, bases and foundations were designed not for the building being erected but for the building it would become. The single-storey pavilion traded for several years while the load-bearing system was already able to take a floor with a retail load. That decision is made once, at design stage, and costs a fraction of strengthening the structure afterwards.
A second storey inside a finished building
The floor was installed inside the operating pavilion. The roof was not opened, the cladding was not removed, the external columns were not strengthened — the beam grid was assembled between what already stood. For the client that meant the building never had to close for the duration of the works.
The floor beam grid
The floor bears on its own posts, set inside the bays at roughly 5.5-metre centres, and on the existing frame axes. Floor bracing uses Ø16 round bar tensioned to a controlled 1.5 tonnes. Some erection holes were provided as spares, to keep members interchangeable.
A roof on 15-metre trusses
The 30-metre width is spanned by two 15-metre trusses bearing on the centre axis. Frames are set at 5-metre centres — twelve bays over 60 metres of length. The eaves sit at 7.5 metres, the ridge at 10.1 metres.
Profiles and steel
The frame uses cold-formed LSZh profiles from 150 to 300 mm high and LS profiles up to 400 mm, together with plate components from 4 to 25 mm thick. Two steel grades: S245 and the higher-strength S345 where element loads are greater. The total weight of the frame steelwork is 42.6 tonnes.
Bolted assembly on site
Frame members are connected with M16 bolts. Welds are made in the shop by semi-automatic welding with a continuous seam using Sv-08G2S wire. Once the columns are set in their design position, the washers are welded around their perimeter.
What this gives the client
Phased construction spreads the investment over time: phase one starts earning, and phase two is funded out of a building that is already working. A steel frame makes this possible because the allowance for future loading is built into the member sizes, and the members themselves stay accessible for attaching new structures.
Project photos
Planning to build in phases?
We will build the allowance for a future extension into the frame — sizing members for the final load from the start. Commercial proposal within 24 hours.
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