Construction of single-storey buildings of metal structures and sandwich panels

Modular frame technology allows the construction of residential houses in the shortest time at a relatively low material consumption. We will look at typical instruction on construction with lightweight thermal profile and structural insulated panels.

Houses made of metal and SIP are pre-fabricated buildings. The reliability of this technology is not in question, but only if they meet two key rules.

First, prior to the construction of the entire complex of design and survey activities is made, drawing up specifications, detailed drawings, plans and sections of the building, describes how to build. This is the most difficult stage: largely due to lack of technical and regulatory documentation, you can be guided only by Eurocode EN 1993-1-3, describing work with pre-fabricated steel structures.

Second, in the assembly process whole list of technical requirements is made, the work is done by qualified personnel. We look at the key moments of the construction on the basis of LSTC, which will help to keep a detailed control over the actions of contractors or quickly to navigate in the industry rules, if the work is being done on their own.

Among all the types of foundations in the context of pre-fabricated steel structures we should seriously consider only three of them.

First – pile-and-crib work foundation, which has an ideal ratio of material consumption and load capacity. LSTC buildings is lightweight, even on weak and unstable soils, they show a good integrity and seismic resistance.

The main problem is reduced to the supporting piles in dense layer below the freezing depth. Usually, piles drilling depth isn’t less than 1.8-2.5 m. Grillage is performed with two reinforcement layers of protective lines at 35 mm. With angular anchering mortgages for rigid connection to the foundation with the chassis are added to the fixture.

A second suitable type is MZLF. It makes sense to organize, if necessary, the organization of the basement or underground garage. Casting Technology basement monolithic design is quite standard, in order to save materials foundations are casted with a cascading section or operate expansion at the bottom.

The third recommended by the foundation under the house on a metal frame serves as UWB. Its design is also quite standard, but the Swedish stove is justified only in the construction of passive houses. Another argument in favor of the warmed plates may be willing to arrange a warm floor system. Because of the small thickness and, consequently, low heat capacity of the plate, it is recommended to arrange heating by jet pipes.

The device is simple enough overlap. The main load with a small length of the I-beam spans perceive or thermo trough. At considerable length spans are replaced on a two-zone portal farm.

The space between the beams is filled mineral-cotton insulation after fixing hem profile and mounting of the rough ceiling. Then on the floor of the upper floor plank steel sheet, on which polystyrene screed is performed with light concrete polymer reinforcement.

Roofing system follows the same type as the wood construction. Rafters are collected from the rack or double-T thermal profile, crate perform by hatter profile section. It is important to make a reservation: in the construction of MK and LSTC can be combined with auxiliary elements of thermal profile should be based on a ponderous system, but not vice versa.

Casing frame made of metal is carried out predominantly structurally insulated panels. At the same time frame cavities provide an opportunity to arrange an additional layer of insulation, which is often performed by ecowool.

Piggott & Whitfield company is one of the leading manufacturers of metal structures, roof and facade materials in UK and all over the world and a leader in building services.

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Cassandra Nelson

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