GREEN BUILD: THINKING AND LIVING THE GREEN REVOLUTIONS

STEEL BUILDS BETTER STRUCTURES WITH RECYCLABLE MATERIALS

There are many reasons why steel framing has come to the forefront as one of the best and most feasible alternative building materials for residential and commercial construction. Steel is a Superior Construction Material

1. Highest strength-to-weight ratio of any building material
2. 100% recyclable
3. 68% industry recycling rate
4. Non-combustible - does not burn nor contribute fuel to the spread of a fire
5. Inorganic - will not rot, warp, split, crack or creep
6. Dimensionally stable - does not expand or contract with moisture content
7. Consistent material quality - produced in strict accordance with national standards, no regional variations

CODE CCOMPLIANCE OF SITE CAST CONCRETE PANEL SYSTEM

Model Building Codes

The UBC, BOCA and CABO have and will approve Site-Cast Concrete (Stud Reinforced) Panel (SCPS) engineered building systems on an individual, case-by-case basis. No specific report or approval is required. ICBO evaluation is available.

Testing

SCPS type panels have been tested and approved by various domestic and foreign educational and testing agencies, and were found to successfully surpass all known criteria.

Fire Rating

These building systems have been tested and approved for most applications and occupancies.

ICBO/ICC Approvals Not Required

1. The SCPS design capacities for both in-plane and out-of-plane loading are based upon sound and straightforward engineering principles and can be found in the UBC under Section 1923 Anchorage to Concrete. The following is how the SCPS is designed as conventional construction found in the code:

• The tabs that are punched from the light gauge studs and track behave as embedded 'J' bolts or Nelson Studs in the concrete. Standard 'J' bolt equations in the 1997 UBC have been used to establish allowable loads for both shear and tension.
• The strength of the tabs is determined using the latest AISI standards for shear, tension and shear rupture capacity.
• The typical design for vertical loads uses only the structural properties of the light gauge metal studs. Out of plane lateral loads are carried by the composite section where the concrete is in compression and by the metal stud only when the concrete is in tension.
• The typical shear wall application in plane loads are carried to the concrete by the tabs in the top track flanges. The in plane loads are then carried by the concrete skin as a shear wall meeting all the requirements of the code. The loads are then transferred to the bottom track by the tabs.
• The composite strength of the SCPS is established through transformed section properties and is governed by stud size, stud and track gauge and the thickness and compressive strength of the concrete.

USGBC LEED POINTS EARNED

Steel construction is environmentally friendly, since most of the material is from recycled sources. As an internationally recognized green building system, LGS construction will be guaranteed 7 points automatically for LEED Green Building certification. Whether a developer is seeking a LEED® certification OR simply going green by selecting environmentally conscientious products, METRO-PANELS’s cold-formed metal framing products and accessories contribute toward LEED® credits in several areas:

Materials and Resources

MR Credit 4.1 and 4.2 Recycled Content (2 Points)
LGS products contain a high percentage of recycled steel comprised of both post-consumer and pre-consumer recycled content.

MR Credit 5.1 and 5.2 Regional Materials (2 Points):
The environmental impacts resulting from transportation can be greatly reduced as LGS’s manufacturing facilities and material sources are located within 500 miles of most project sites

MR Credit 2.1 and 2.2 Construction Waste Management (2 Points)
Since steel is World’s most recycled material, redirecting job site reusable resources back to the manufacturing process can also contribute toward Construction Waste Management points.

Innovation in Design

Composite Concrete Panels with LGS framing metal studs and tracks provide higher strength capacity from lighter gauge material creating a substantially lighter building footprint. This reduction in the amount of steel and concrete used in the building allows for a corresponding reduction in the amount of energy required to manufacture the steel. Our experienced customer representatives and LEED® Accredited Professionals are ready to assist you with your next LEED® project.