Tie anchor and method for manufacturing insulated concrete sandwich panels

A tie anchor for use in the fabrication of insulated reinforced concrete panels having at least two concrete layers separated by a layer of rigid insulation material, said panels being fabricated by sequentially pouring said concrete layers in a horizontal plane in a form having a horizontally disposed bottom wall, said tie anchor comprising;

• a tie body comprising a generally flat, elongated rigid tension member having opposed face surfaces,
• an aperture adjacent each terminal end of said tie body, and
• chair support means connected to one end of said tie body and extending transversely to the plane of said tie body in each direction beyond said opposed face surfaces,
• whereby said tie body may be placed upright on the bottom wall of a panel form supported by said chair support means and reinforcing rods supported by said apertures for sequentially pouring said concrete layers in a horizontal plane.

A tie anchor for use in the fabrication of insulated reinforced concrete panels having at least two concrete layers separated by a layer of rigid insulation material, said panels being fabricated by sequentially pouring said concrete layers in a horizontal plane in a form having a horizontally disposed bottom wall, said tie anchor comprising;

• an elongated tie body having top and bottom ends and a bottom support surface,
• said body being of sufficient length so as to have said bottom end support surface located in the outside face of one said concrete layers and said top end embedded in the body of the other concrete layer,
• at least one aperture in said tie body adjacent each said top and bottom ends for the passage of concrete reinforcing rods,
• said tie body comprising a tension link extending through said insulation layer and structurally connecting said concrete layers,
• a cross member connected to the bottom end of said body and having a support surface thereon extending transversely to said tie body,
• said cross member support surface being of sufficient extent so as to cooperate with said bottom end support surface, when placed on the bottom wall of said form, to support the tie body in a vertical position and to maintain concrete reinforcing rods, extending through said apertures, in a horizontal plane at a predetermined distance from the bottom wall of said form for pouring said concrete layers.

An insulated reinforced concrete building panel comprising;

• an inner layer of concrete,
• an outer layer of concrete,
• each said layer of concrete having reinforcing strands embedded therein,
• a layer of rigid insulation material interposed between said layers of concrete,
• a plurality of spaced elongated connector ties interconnecting the concrete layers of said panel,
• said connector ties having one end located in the face of said inner layer of concrete and extending through said insulation layer and having their opposite ends embedded in said outer layer of concrete,
• each of said connector ties having certain ones of said reinforcing strands of each concrete layer passing through the body thereof,
• and support members connected to one end of each said connector ties located in the exposed face of said inner layer of concrete,
• said layers of concrete being successively poured in a horizontal form with the support members and associated connector tie ends seated on the form bottom to support the connector ties in an upright position and the associated reinforcing strands in a horizontal plane spaced a predetermined distance from said form bottom during pouring,
• said rigid insulation layer being placed on said inner layer of concrete about said connector ties and said outer layer of concrete being poured directly on top of said layer of rigid insulation prior to hardening of the inner concrete layer.

A method for fabricating a sandwich panel comprising;

• supporting first reinforcing strands on spaced upright tie anchors seated on the bottom of a horizontal panel form,
• said tie anchors including cross members connected to the bottom ends thereof forming support chairs for said strands,
• pouring a first layer of concrete about said first strands with the exposed ends of said tie anchors extending above said first layer,
• placing a layer of rigid insulation on the first layer,
• supporting second reinforcing strands from the exposed ends of said tie anchors spaced from said insulation layer, and
• then pouring a second layer of concrete about said second strands on top of said insulation layer.

A method for fabricating an insulated reinforced concrete sandwich panel comprising;

• supporting a first grid of reinforcing strands in a generally horizontal plane on the bottom of a concrete panel form,
• said first grid being spaced from the bottom of the panel form and supported by spaced upright tie anchors having horizontal cross support members connected to the bottom ends thereof forming grid chairs seated on the bottom of the panel form with certain of said reinforcing strands engaged by said tie anchors,
• pouring a first layer of concrete about said first grid with the exposed ends of said anchors extending above said first layer,
• placing a layer of rigid insulation on the surface of said first layer about the exposed upper ends of said tie anchors prior to hardening of the first layer,
• supporting a second grid of reinforcing strands in a generally horizontal plane above said rigid insulation layer
• said second grid being spaced from the rigid insulation layer and supported by said anchor with certain of the strands thereof engaged by said tie anchors;
• and
• then pouring a second layer of concrete about said second grid on top of said rigid insulation prior to hardening of said first layer.

A tie anchor for use in the fabrication of wall structures comprising;

• an elongated tie body comprising a generally flat elongated rigid member having opposing face surfaces,
• at least one aperture extending through said tie body between said face surfaces,
• chair support means on one end of said tie body and extending transversely to the plane of said tie body in both directions beyond said opposed face surfaces,
• whereby said tie body may be placed upright on the bottom wall of a panel form supported by said chair support means and reinforcing means supported by said at least one aperture.

A method for fabricating a sandwich panel comprising;

• supporting first reinforcing strands on spaced upright tie anchors seated on the bottom of a horizontal panel form,
• each said tie anchor comprising a generally flat elongated rigid member having opposing face surfaces and chair support means on one end thereof extending transversely to the plane of said member in both directions beyond said opposed face surfaces,
• pouring a first layer of concrete about said first strands with the exposed ends of said anchors extending above said first layer,
• placing a layer of rigid insulation on the first layer,
• supporting second reinforcing strands from the exposed ends of said tie anchors spaced from said insulation layer, and
• then pouring a second layer of concrete about said second strands on top of said insulation layer.