AS pre-engineered metal buildings are custom-designed and optimized in order to meet customer’s needs and exact requirements. Our pre-Engineered Steel Buildings are designed to provide maximum space utilization with highest safety standards and excellent strength. These buildings are malleable enough to suit different building dimensions which are easily expandable have maintenance free exteriors and can withstand harsh climatic conditions. Our pre-engineered buildings are suitable for commercial and industrial sector which includes factories,warehouses, workshops, aircraft hangars, cold storages, stadiums, supermarkets or any other high-rise buildings.

Primary Framing System

Our engineering strengths enable us to optimize complex building design into efficient building solutions to suit our customer’s needs. Our primary framing consists of all structural elements which transfer load to the foundation and comprises of Endwall frames Endwalls are constructed with either economical bearing frames or rigid frames.

These frames are complemented by wind bracing, connection bolts, anchor bolts if required.Wind Bracing: It consists of cross-bracing located in the side walls and roof in one or more bays depending on the type of load and the length of the building.

Crane Brackets: The crane brackets are the members holding up the cranes beams. The crane brackets in a primary framing system are attached to the columns which carry the load of the crane beams.

Our basic architectural measures include Building width: The building width is defined as the distance from outside of eave strut of one sidewall to outside of strut of the opposite sidewall. Building Length: The distance between the outside flanges of endwall columns in opposite endwall is considered the building length. Building length is a combination of several bay length. End bay length: It is the distance from outside of the outer flange of endwall columns to center line of the first interior frame columns

Interior bay length: It is the distance between the center lines of two adjacent interior main frame columns.

Secondary Framing System

Secondary framing consists of Roof Purlins, Wall Girts, Eave Struts, Clips etc which support the roof and wall sheeting and help in the load of primary framing

Roof Purlins: Roof purlins are C or Z shape cold form structured components with variable depth and thickness in accordance with the customized designs. These are fixed to the top flanges of the rafters with the help of clips bolted to the rafters, and the purlin web bolted to the clips which are connected in a continuous fashion and spacing.

Wall Girts: The wall girts are cold formed Z shape members, consisting of various thickness and variable depth depending upon the design. The wall girts plays a vital role in the secondary framing systems, which form the pre-engineered structure combined with the primary framing systems and the connectable sheeting. These are fixed to the outer flange of the side wall columns with the help of clips bolted to the column and girt web bolted to the clips.

Cranes & Mezzanine

Crane systems in building: There are various types of crane systems used in industry for various purposes such as EOT overhead crane, Overhung/under-slung crane system, Monorail crane system etc.

Mezzanine systems in Buildings: The standard Supertech mezzanine framing system consists of a steel deck supported by joists framed onto main mezzanine beams. The economy of a mezzanine system is affected by the applied loads (dead, live and collateral) and mezzanine column spacing. Consult a AS Building Systems  representative for advice on the most economical mezzanine design.

Mezzanines

• The Mezzanines are erected with the main frames, generally prior to sheeting.
• The mezzanines beams are first installed by connecting to the columns with clips and high strength bolts.
• The joists are then placed between the beams and connected with clips and mild steel bolts. An edge angle is then screwed at the perimeter of the mezzanine area, prior to laying and screwing the decking panels.
• The decking panels re attached by 32mm self drilling fasteners without washers. Openings for stairs and penetrations are framed before fixing the concrete reinforcement.
• It is important to advise the concreting crew about placement of concrete, particularly if a pump is to be used. The concrete should be evenly spread, concentrated piles of wet concrete could cause deflection in joists of decking.

Crane Beams

• Alignment of crane beams is very important, the centres of the crane beam webs should be equal to the centres of the crane wheels, with maximum tolerance. Alignment is achieved by setting each end of the beam to the correct dimension and stretching a line from end to end, alternately, a theodolite can be used if available.
• The crane beam brackets have slotted holes to assist in ease of alignment, if the building has been carefully plumbed, adjustment will be minimal. During alignment install the “T” brackets and shim plates, and install the angle braces form column to beam. Finally once alignment is confirmed, the bolts are fully tightened.