Pre engineered buildings
The pre-engineered metal building system is a building enclosure system that always includes a structural system and often includes roof and wall cladding. The structural system consists of rigid frames that are fabricated from plate steel shape through a manufacturing process. These rigid frames consist of roof beams and columns that are field bolted together. These frames can span large distances without inter supporting columns. Pre-Engineered Building System in terms of versatility, flexibility and total value-engineering. The pre-engineered building system is, without doubt, one of the fastest growing building systems in the world. The advantages that it offers appeal to all parties involved in the project. After all, who can resist a building system that offers speed, quality and value Applications of pre-engineered buildings are numerous. Described in a few words, pre-engineered buildings are ideal for any non-residential low-rise building.Clear Span
A clear span is an open area without usual structural supports that allows the users to stack items in a variety of configurations without any obstacles. The clearer a span is, the spacious it will be.
The structural supports of the building are located in the walls and maybe larger than usual to accommodate the strain of the roof. The network of trusses and supports in the roof is carefully assembled to distribute weight evenly to the walls without sagging in the middle. Lightweight building materials are chosen because of their strength and durability.
Multi Span Building
A Multi-Span frame is consisting of more than one spans across the width of the building. Multi-gable buildings and single-gable buildings which have the interior columns are examples.
Multi storied steel buildings
In developed countries a very large percentage of multi-storey buildings are built with steel structure. Steel is not so commonly used in construction of multi-storey frame, but it is a better material than reinforced concrete. The use of steel in multi-storey building construction results in many advantages for the builder and the user. Depleting natural resources , and their rising costs have given rise to the need for an alternate to traditional, civil-construction Methods . With Pre-engineered steel building systems, multi-stories can now be scripted in the shortest time , along with substantial cost savings and many more benefits. Multi-storey steel frame structure consist of beams and columns from welded H-shaped steel, hot-rolled H-shaped steel. In this frames, the beam and column system takes the gravity load such as dead and live loads. Now steel frame structure is mostly used for residential, commercial, institutional buildings all over the world . A wide range of steel technologies may be used in commercial buildings. Specific technologies are chosen to match client requirements. Many long span steel solutions provide service integration within their depth, which saves on building height. Cellular beams combine an efficient manufacturing process with opportunities for service integration. Integrated beams minimise the floor zone while allowing services uninterrupted access below the floor soffit.
Sheeting
Built-up sheeting is assembled on site, and generally consists of four components:
- A thin internal liner to ensure air tightness.
- Insulation (such as mineral wool).
- Spacer bars/brackets to support the metal cladding.
- Profiled metal facing sheet to provide weather protection.
Built-up sheeting can be fitted in vertical, horizontal or diagonal patterns, and is usually fixed in place by self-tapping fixings designed to match the chosen finish. While curved systems are possible, they require careful installation.
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