Abstract: A reinforcement system is provided to strengthen a precast concrete panel with a connector that joins the panel with another structure such as a floor joist or concrete slab. One or more hook bars can be embedded in the panel proximate to the receiving member to distribute forces from the connector to a much larger volume of the panel. To accomplish this distribution, at least one hook bar can be positioned in an anchor volume defined by anchor members of the receiving member, and at least one hook bar can be positioned outside of the anchor volume. The hook bars can be oriented with a main body portion positioned proximate to the receiving member of the connector to resist tension forces caused by a load on the connector, and end portions of the at least one hook bar encompass the larger volume of the panel.

Abstract: A method for calculating using a digital computer an approximation of properties of a concrete sandwich panel. The method allows for a manufacturer of concrete sandwich panels to design sandwich panels using a range of available components to meet architectural specifications.

Abstract: A method for calculating using a digital computer an approximation of properties of a concrete sandwich panel. The method allows for a manufacturer of concrete sandwich panels to design sandwich panels using a range of available components to meet architectural specifications.