FT Infrastructures

How PEB differs from conventional steel Buildings

Structural weight is about 30% lighter through the-efficient use of steel. Primary framing members are (varying depth) tapered built-up plate sections with large depths in the areas of highest stress. Secondary members are light gage (light weight) cold formed (low labor cost) “Z” - or “C” shaped members

Conventional Steel Buildings

Primary steel members are selected from standard hot rolled “I” sections, which in many cases are heavier than what is actually required by - design. Members have constant cross-sections along the entire span, regardless of local stress magnitude. Secondary members are selected from standard hot rolled ‘I” and “C” sections, which again are much heavier than required.

Foundations are simple, easy to construct and light weight

Extensive heavy foundations required.

Design is quick and efficient since standardization of P.E.B. has significantly reduced design time

Each conventional steel structure is designed from scratch by the Consultant, with fewer design aids available to the Engineer. Maximum engineering required on every project.

Erection is easy, fast, step by step. Erection costs & time are accurately known, based upon extensive experience with similar buildings.

Slow, extensive field labor required. Typically 20% more expensive than a normal PEB building.

Outstanding architectural design at low cost. Conventional wall, and fascia materials, such a concrete, masonry and wood, can be utilized.

Special architectural design requires research and high cost.

Easier to incorporate future expansions due to modular nature of design.

More difficult to make expansions or changes.

Faster Completion time- as civil works can be completed parallel.

Slower completion time compared to PEBs.

Cost per SQM is about 30% cheaper than conventional structures.

Cost is higher compared to PEBs.

ft Products

Primary Members

Primary framing consists of columns and rafters with tapered web and variable flanges. These are manufactured by welding together cut plates to form the desired frame I – Sections. The tapered sections are welded at a factory / bolted at site splices to form the desired frame profile. These frames in PEB are normally moment resisting frames with fixed or pinned bases mandated by the design

Secondary Members

Secondary framing members used in PEB’s are roof purlins and wall girts, eave struts, flange braces etc.Purlins, Girts and eave struts are made o f cold formed sheets. Normally, secondary framing members are in Z or C shapes.Purlins which are used to support roof sheeting and the girts at longitudinal walls are normally designed as continuous members. However, the girts at transverse or short walls are normally designed as simply supported beams.The spacing of secondary framing members are primarily dictated by the capacity of the cladding to span in between the purlins/girts.

Sheeting/Panels/Cladding

Panels refers to exterior roof and wall panels, interior roof and wall liner panels, partition panels , fascia panels etc.Cladding comes in a variety of profiles which are customized to suit structural and aesthetic requirements

Accessories

Accessories consists of Structural fasteners, Sheeting fasteners, Washers, Sag rods, bracing rods, insulation etc.

Scope of Modular Construction

Today, steel is one of the most common materials in the world. We rely on it for our housing, transport, food and water supply, energy production, tools and healthcare. Nearly everything around us is either made of steel or manufactured by equipment made of steel. Steel has enabled our modern way of life. It has helped lift societies out of poverty, spurring economic growth, and continues to do so around the world today Developing societies require steel to build new roads, railway lines, buildings and bridges. They also need it to lay new pipelines for gas, water and sanitation and to build factories and machinery.