Apparatus and method for forming precast modular units and method for constructing precast modular structure

A method of forming precast modular units, comprising the steps of:

• providing at least two modular forms each having a plurality of reinforcement members disposed in each of the modular forms, and a plurality of connecting members each having a first end integrally connected to one of the reinforcement members and a second end extending from opposite side edges of each of the modular forms;
• positioning the modular forms side by side so that one of the side edges of one of the modular forms is disposed in confronting, spaced-apart relation to a corresponding side edge of another modular form;
• disposing a molding plate between the confronting side edges of the modular forms;
• releasably connecting the second end of each of the connecting members extending from the side edge of one of the modular forms to a corresponding connecting member of the other modular form to removably connect together the modular forms and the molding plate;
• pouring a construction material into the connected modular forms;
• allowing the construction material to cure;
• and removing the modular forms and the molding plate to form precast modular units.

A method for constructing a precast modular structure, comprising the steps of:

• providing a plurality of generally different precast modular unit sets each having a plurality of identical precast modular units, each of the precast modular units of each precast modular unit set having connecting surfaces;
• transporting the precast modular units of each precast modular unit set to a construction site;
• positioning each of the precast modular units on a ground surface at the construction site so that each of the connecting surfaces of each of the precast modular units is in confronting, spaced-apart relation to a corresponding connecting surface of an adjacent identical precast modular unit or a precast modular unit of another precast modular unit set;
• connecting the confronting connecting surfaces of each pair of adjacent precast modular units to form a channel therebetween;
• pouring a construction material into each of the channels formed between each pair of adjacent precast modular units;
• allowing the construction material to cure to form a rigid joint between each pair of adjacent precast modular units to integrally connect the precast modular units to form a wall structure having a predetermined shape, an interior space, and interior and exterior wall surfaces having the rigid joints;
• burying the wall structure;
• and forming a floor structure in the interior space of the wall structure.