VERSA:T:™ advanced composite beams are custom fabricated from steel plate, then fitted with shear studs, support straps, and shop-installed rebar. Welded shear studs act as an anchor, eliminating slip between the steel form and confined concrete, and enabling the concrete to lend its load and stress-bearing properties to the composite assembly. Beams arrive to your jobsite ready to be erected and bolt-fastened, speeding up construction and eliminating the need for welding in the field.
VT beams provide consistent quality and maximum efficiency at both non-composite and composite stages:
- Prior to concrete placement, VT beams act as a floor support system, providing an immediate working platform
- After concrete curing, VT beams exhibit enhanced characteristics, including increased strength, stiffness, and crack control, as well as unprotected fire ratings of 2 hours or more
small. flexible. strong.
DIVERSAKORE framing systems can achieve structural depths equivalent to post tension systems while being shallower than conventional systems. The shallower structural depths can yield lower floor-to-floor heights translating into savings on both materials and operational expenses.
VERSA:T:™ Beams increase the application potential of hollowcore slab and composite metal deck, resulting in more flexibility in building design. When combined with our composite columns and beams these flooring systems can be used to solve many of the problems facing developers, architects, and engineers today. These systems and products share similar qualities: small footprints, efficient use of materials, minimal labor, and fast construction methods. Additionally, they represent advanced application of design and production techniques, ultimately yielding cost-effective structures that are fast to build and take up less space.
2 HOUR FIRE ASSEMBLY RATING WITHOUT SPRAY FIREPROOFING
When used with 8” or larger hollowcore slabs and 1-3/8” or larger concrete topping slab the VERSA:T:™ beam carries a 2-hour UL fire assembly rating, eliminating the need for fireproofing spray application.
Similar to traditional composite design, the beam is designed for two conditions: non-composite, prior to concrete placement, and the composite beam final product. In the non-composite stage the VERSA:T:™ beam acts as a floor support system and stay-in-place form, providing an immediate working surface and fast assembly. Prior to achieving full composite strength development, shoring at 6 to 8 feet spacing is required to support the VERSA:T:™ beam.
After concrete placement and curing, the VERSA:T:™ beam final product exhibits the optimized material use characteristics of the fully-composite design. The VERSA:T:™ steel form now acts as much more than a stay-in-place form; it contributes to increased strength and increased stiffness of the composite VERSA:T:™ beam. Welded shear stud connectors are engineered and provided during the fabrication of the VERSA:T:™ beam to eliminate slip between the steel form and confined concrete and ensure full composite action is realized.
Due to its poor thermal conductivity and non-flammable material components concrete provides the best fire-resistance of any common building material. The VERSA:T:™ beam utilizes the material characteristics of concrete to provide inherent fire resistance in each beam. Our beam design process includes analysis based on AISC Design Guide 19: Fire Resistance of Structural Steel Framing and International Building Code, Chapter 7 Fire-Resistance-Rated Construction.
In the event of a fire it is assumed that the VERSA:T:™ steel form would reach temperatures high enough to significantly reduce the material strength of the steel. This is accounted for in our fire-resistance design procedure by neglecting the strength contribution of the steel form. The residual strength of the remaining concrete section is utilized to meet project specific fire-resistance rating requirements. This approach has been tested and verified in Underwriters Laboratories® testing consistent with the requirements of ASTM E119. As a result of the testing the VERSA:T:™ beam carries a 2-hour UL® fire assembly rating (UL K916).