Cold-formed steel has been widely used in building construction, from residential houses to industrial buildings. Hyperion Structures have extensive experience with manufacturing process of cold-formed steel, the fundamental theories of cold-formed steel design, cold-formed steel applications in today’s construction market, and connection methods.
Why choose Cold Rolled Steel?
Cold rolled steel is the most economical portal building system available.
Speed of construction
The elements of your steel building arrive on site ready for assembly. No on-site measuring or cutting is normally required and the main structure of the building can usually be erected within hours.
Ease of assembly
Assembly is normally simple. Due to the lightweight nature of the beams and columns, heavy lifting equipment isn’t normally required during erection. Most elements can be carried so access to confined/remote areas of a property is not an issue.
Reduced foundation costs
The high strength to weight ratio of a cold rolled structure makes the overall building very strong but also lightweight. This reduces the need for expensive foundations, site dependent.
Specialised Structures uses high-tensile, pre-galvanised steel, cold rolled into an incredibly strong C-section, as the structural elements of your building. The columns and beams are bolted together with galvanised base, eaves and ridge plates into a rigid frame. It will be durable and maintenance-free for many years.
Cold rolled steel is completely recyclable. Using cold rolled technology, the energy required to fabricate building frames is extremely low. Also, the low weight – high strength ratio of the product reduces the amount of heavy haulage required for delivery to site.
As these buildings are bolted and screwed together, dismantling for relocation or cost-efficient expansion is simple.
Through our suppliers we have manufacturers Durability and Warranty on our materials.
Hyperion Structures Cold-formed shapes can be used for entire buildings and for complete roof, floor and wall systems. They can also be used as individual framing members such as studs, joists and truss members.
From structural standpoint, the cold-formed steel can serve as both primary structures and secondary structures. An example of the cold-formed steel used as primary structures is the steel stud load-bearing wall. Steel studs providing the lateral support to exterior wall finish are usually secondary structures since they rely on the primary structure for support.
Floor decks, roof decks and wall systems are the prime applications for cold-formed steel in panel form. These are made in both simple, or single-component types, as well as more complex units made up of several elements.
Permanent metal deck forms are fabricated from lightweight steel in thickness that vary from 0.020 to 0.075 inches (0.50 to 1.9mm) and depths of 2, 3, and 4-1/2 inches (51, 76 and 115mm), depending on slab thickness and design span. Permanent metal deck forms are usually galvanized.
Permanent metal deck forms are designed to support the wet weight of concrete, a construction load, reinforcing steel and the weight of the form itself.
Composite metal deck forms also provide the tension reinforcement for the slab. The embossments provide interlock between the deck and the concrete. The ribs are generally trapezoidal in shape for roof and floor deck applications, although they may vary by manufacturer. The panels may be punched with a pattern of holes to absorb sound.
Some deck systems use cellular cold-formed steel shapes to permit lightweight floors that reduce deadweight. These floor systems can provide electrical power, communications and data cable distribution as well as heating and air conditioning ducts.
This eliminates separate space requirements in floors, walls and ceilings for ductwork or conduit systems. The modular construction possible with cold-formed steel sections permits access to many points in the deck, making it easy to rearrange wiring or ventilation outlets.
Standing Seam Metal Roof
The cold-formed steel standing seam roof was introduced in 1969 as a new concept in roofing. Today, there is over a billion square feet of standing seam roofing installed.
The system consists of factory or job-site roll-formed panels with elevated, field-secured seams and concealed clips that fasten the panels to the structure and permit the panels to accommodate thermal expansion and contraction.
There are two basic types of standing seam roof systems:
The first type is structural standing seam roof panels that provide a water-tight barrier and are generally installed on low-slope applications, with a minimum slope of about ¼ in 12. These panels provide their own support, usually spanning about five feet (1.5m) between purlins. The system can also be installed over existing flat roofs by using a sloped sub-assembly system made of light steel structurals. The “attic” created by the sub-assembly affords a convenient area of adding insulation.
Leaving the old roof in place means avoiding the release of potentially hazardous materials into the environment and eliminating the cost of disposing of the existing roof. Most importantly, a new metal roof can be installed with little or no interruption to the building’s occupants. The preferred material for the roof panel is galvanized or aluminum-zinc coated sheet steel.
The second type is architectural standing seam roof panels. They are generally used on roofs with slopes of 3 to 12 or greater, and provide water protection as well as aesthetic value. These panels usually require some form of decking for support. The preferred materials for architectural standing seam roof panels are prepainted galvanized and prepainted aluminum-zinc coated sheet steel. The architectural possibilities provided by the variety of colors and patterns are limitless.
Cold-formed steel panels are also used for enclosing the building to keep out the weather and keep in the heat. There are now available cold-formed steel panels with insulation already incorporated in the construction of the panel. Some of these configurations make use of foamed in place rigid urethanes sandwiched in between the steel. Others use different types of insulation, the more conventional being fiberglass installed in the panels.
There are wide varieties of panel systems. The simple, single element is available primarily as a ribbed sheet; formed, coated and otherwise modified to fulfill special functions that may be required.
Panels for walls may be as straightforward as a painted ribbed panel or as interesting as a porcelain or metal and glass curtain wall system. In many metal buildings, the wall panel is similar to the ribbed roof panel, with either wide or narrow ribs, and is painted or aluminum coated for long service life. The same tongue and groove lap or standing seam joints is employed here.
More sophisticated systems are made from cold-formed steel for curtain wall systems of buildings. These may include varying amounts of glass, either tinted or clear, complex or simple trim work and clean expanses of sheet steel. There are many advantages in using these cold-formed steel curtain walls. They include high strength and lightweight, and modular installation for lower construction costs. They permit a beautiful surface, available in a variety of coatings, textures and colors to meet any architectural concept. Like other panels, these may have insulation pre-installed. The curtain wall module may span several window bays or several floors, to minimize installation time.
Metal stud framing is widely used as the structural support for the exterior brick veneer and exterior insulation finishing system (EIFS).
Building Interior Partitions
Cold-formed steel framing is also used for interior walls and partitions that provide flexibility in layout of interior spaces as well as the freedom to relocate and redesign.
The main advantages of these systems are strength, durability, noncombustibility, and a wide choice of coatings, including porcelain, vinyls and paints.
Another area in construction where cold-formed steel is finding wider application is in residential steel framing systems. Here, steel is used instead of lumber for joists, studs and other structural components of residential construction.
The steel components are usually of Cee, I or hat shape and galvanized or painted. They can be cut to the required length by the manufacturers, thereby minimizing construction labor.
Cold-formed, corrugated steel pipe is used for everything from storm sewers to utility tunnels, and simple tunnels under roadways to huge bridge structures. The corrugated steel pipe can be installed in a cut, covered with filled and topped out with a roadway to form an inexpensive and durable bridge.
Material handling and storage specialists rely on cold-formed steel racks and rack systems to efficiently store and retrieve everything from groceries to heavy steel bars. New rack systems are so huge they fill entire buildings and have stacker cranes that rise as high as 100 feet (30m).
There is a whole industry built around cold-formed steel building components. Manufacturers of pre-engineered metal building provide custom designed structures for anything from a small tool shed to a range of sophisticated structures such as schools, churches and complex manufacturing facilities.