Custom Fabricated Conventional Structural Prefabricated Steel Pre-Engineered Building

Pre Engineered Steel Buildings

Conventional Structural Steel Buildings

1) Design Criteria ISO Universal

1) Design Criteria normal domestic standard

2) Design: Quick and efficient since standardization of pre-engineered steel buildings has significantly reduced design time. Basic designs are used over Specialized computer analysis and design programs reduce design time and optimize material required. Drafting is also computerized with minimal manual drawings. Design, detail drawings and erection drawings are supplied free of charge by the manufacturer. Approval drawings may be prepared within ten days to 3 weeks. Consultant in-house design and drafting design is significantly reduced, allowing more time for coordination and review, and increasing margins in design fee savings.

2) Design: 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. Generalized computer analysis programs require extensive input/output and design iterations. Drafting is manual or only partially automated.Much Consultant time and expense is devoted to design and drafting, as well as coordination and review.

3) Weight: About 30% lighter through the efficient use of steel. Primary framing members are designed with tapered built-up plate sections with the most steel in the areas of highest stress, using high strength steel.Secondary members are light gage cold formed “Z” or “C” shaped members. Members are roll-formed for minimum weight and labor cost.

3) Weight: Steel member sizes must be selected from standard hot rolled sections, which in many cases are heavier than what is actually required by design. Members are the same cross-section along the entire length, regardless of local stress magnitude? Secondary members are from standard hot rolled “I” and “C” sections. In many cases members are heavier than required, and therefore are not as economical as cold formed members.

4) Base Material: Rigid Building pre-engineered steel buildings system uses almost all steel to meet 50,000 P.S.l. minimum yield including the cladding.

4) Base Material: In most of the cases (90%) Base Material is 36,000 P.S.I. minimum yield.

5) Foundation: Simple design, easy to construct and lightweight.

5) Foundation: Extensive heavy foundation required.

6) Accessories (Windows, Doors, Venti