1. Clear span
A Clear span
frame in a pre-engineered building
provides an open area without any structural support that helps the owner to stack items in various configurations without worrying about obstacles. Clearance is especially important in facilities where large items are stored. Inadequate space can make it harder to store supplies and may also make it difficult to move vehicles such as forklifts and delivery trucks. Therefore, a clear span frame is commonly used in the construction of industrial warehouses, aircraft hangars
, auditoriums, etc. Like most prefabricated steel buildings
, the clear span frame is durable, versatile, economical, and can be assembled very quickly.
frame consists of two or more spans across the width of the building. A pre-engineered building
with a Multi-span frame is suitable for manufacturing plants and distribution centers. Columns can be placed wherever they are needed and are usually hidden in walls. Additionally, rafters and beams can be tapered or straight, providing multi-span buildings with design flexibility.
3. Built-up curved rafter
Built-up curved rafter
is another standard frame of the pre-engineered buildings
with curved steel structures that offers numerous advantages such as giving a special appearance to the building, providing natural light, and a sense of spaciousness and grandeur in public facilities. Contrary to some expectations, the construction of a built-up curved rafter is no more expensive than other frame structures. This kind of steel buildings
finds popularity in the construction of airports, stations, shopping centers, sports halls, and recreation centers.
Built-up curved rafter creates a spectacular appearance for the buildings
4. Roof system
A Roof system
frame for pre-engineered buildings
consists of roof rafters, purlins and sheets specially designed to be installed on a planned or existing substructure. The substructure is usually made of concrete or masonry. It must be physically suitable for the required PEB Steel's anchor bolts and is designed for proper load transfer from the roof system to the foundation. A roof system frame is generally not economical compared to a complete pre-engineered building
, especially for intermediate and large spans. This is because the rigid frame of a prefabricated steel building optimally distributes the stresses across the frame, resulting in a lighter and more economical overall structure, while in a roof system the stresses are concentrated at the mid span of the roof rafter which require heavier rafters.
is a frame of steel buildings
developed by PEB Steel. PebHybrid can save the rafter weight up to 20% as well as fabrication time when using cold-formed galvanized materials without welding or painting. PebHybrid is more environmentally friendly by optimizing the materials used and is convenient for delivery to construction sites.
PebHybrid – a super durable standard framing system