THIN-WALL™ by OCIS panel system uses a proprietary glass fiber reinforced polymer (GFRP) shear connector to achieve composite action between the exterior and interior concrete wythes.
Thermal Design
• A non-composite precast concrete wall which depends on the interior wythe for structural capacity, is generally 15 inches
(total width), with the interior 8-inch wythe designed to support the full load.
• With a THIN-WALL™ by OCIS system, only 10 inches (total width) is often adequate – a 3-inch interior wythe, plus XPS insulation, plus 3-inch interior wythe. Both wythes would be designed to share in resisting the load. The exterior could be clad with ½″ thin brick facing that is integrally precast with the panel or other architectural features such as reveals.
Design of the THIN-WALL™ by OCIS panels is created by the precast producer and/or their engineering consultant using proprietary spreadsheets and validating reports available to the licensed producer. Design tools and additional resources are available to the licensed precast producers and directly from those producers to the designers who support them.
THIN-WALL™ by OCIS is a partially composite action beam spring truss where we use the following percentages for design:
One important advantage of THIN-WALL™ by OCIS is the low modulus of elasticity of the connectors, this greatly reduces the amount of thermal bowing. They stretch and shorten as the outside temperature changes relative to the inside conditioned space. More pronounced bowing would result when stiff concrete block-outs and/or steel connectors are used to achieve composite action.
Design of the THIN-WALL™ by OCIS panels is done by the precaster directly, or in conjunction with a engineering consultant. Proprietary design spreadsheets and validating reports are available to the licensed producer.
As a method for efficient production of the insulated wall panels, THIN-WALL™ by OCIS involves sourcing an insulation of choice, from a supplier of choice. With the aid of a “foam former”, Nu-Tie connectors are installed in the polystyrene foam (XPS or EPS) in a bottomed prior to placement at the casting bed. This keeps a larger crew more productive to the point that maximizes efficiencies.
Design of the THIN-WALL™ by OCIS panels is done by the precaster directly, or in conjunction with a engineering consultant. Proprietary design spreadsheets and validating reports are available to the licensed producer.
As a method for efficient production of the insulated wall panels, THIN-WALL™ by OCIS involves sourcing an insulation of choice, from a supplier of choice. With the aid of a “foam former”, Nu-Tie connectors are installed in the polystyrene foam (XPS or EPS) in a bottomed prior to placement at the casting bed. This keeps a larger crew more productive to the point that maximizes efficiencies.
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