System for forming an insulated structural concrete wall

A system for constructing a concrete structure, the system comprising:

• at least four interconnected wall frames for at least four respective walls, each of the wall frames comprising:
• a plurality of frame members spaced apart along the length of the respective wall, each of the frame members extending substantially the full height of the respective wall and comprising:
• an elongate outer member defining a longitudinal axis, the outer member comprising a flange extending between its opposite longitudinal ends, and adapted to have an outer layer connected thereto;
• an elongate inner member substantially parallel to the outer member and adapted to have an inner layer connected thereto;
• a plurality of tie members each having a first end for connection to the inner member and a second end for connection to the outer member, the tie members extending in a transverse direction between the outer and inner members at longitudinally spaced apart locations to interlock the outer and inner members together in a spaced apart, substantially parallel relationship, wherein at least one opening is defined between the tie members and the outer and inner members, the at least one opening being sized to permit flow therethrough of uncured concrete poured between the outer and inner layers to form a concrete core;
• at least one outer anchor associated with the outer member for securing the outer layer relative to the outer member;
• and
• at least one inner anchor associated with the inner member for securing the inner layer relative to the inner member substantially parallel to the outer layer;
• and
• cross ties extending between the spaced apart frame members to secure the frame members together, the cross ties:
• (i) being distinct from reinforcement for the concrete core;
• and (ii) positively engaging the spaced apart frame members to secure the frame members together against movement toward or away from one another;
• at least one corner securing member connecting the ends of adjoining said walls of the structure to form a corner therebetween and resist relative movement between the walls when the concrete core is poured;
• and
• wherein the frame members of at least one of the wall frames comprise:
• longitudinally spaced apart apertures in the flange of the outer member,
• elongate connectors having one end engaged in the spaced apart apertures and an opposite end extending from the outer member for connection to an associated said at least one outer anchor of the at least one of the wall frames to connect the outer member to the associated said at least one outer anchor, the extent of engagement of the connectors in the apertures being adjustable to facilitate adjustment of a spacing between the flange of the outer member and the associated said at least one outer anchor.