Modular building methods and systems using lightweight modular panels, and specially configured transition panels for transitioning from wall to floor, or from wall to roof. Identically configured standard panels are used for constructing the walls, floor, and roof, with transitions from one structure to the next (e.g., wall to floor, or wall to roof). Each of the variously configured panel types includes channels (e.g., 2 pair of channels) formed through the length of the foam body, where the channels are configured to receive splines (e.g., flanges of an I-beam) therein. In the standard panel, the channels may include pairs of top and bottom channels, with the channels offset towards the respective panel major faces. In the transition panels, the channels may be similarly configured, but positioned differently to make the appropriate transition. The splines are connected to a frame, which acts as a template and transfers loads to a foundation.

A wooden module may include four cross-sectionally square longitudinal pieces of timber, at least six cross-sectionally square transverse pieces of timber, and at least two cross-sectionally square plugs, which may be connected to one another via a plurality of connection plugs. The four longitudinal pieces of timber may be arranged parallel to and spaced apart from one another such that the four longitudinal pieces of timber span a square. The at least six transverse pieces of timber may be arranged over a length of the four longitudinal pieces of timber and may be arranged between the four longitudinal pieces of timber. The at least two plugs may be arranged vertically parallel to one another and to at least four vertical transverse pieces of timber on at least two horizontal transverse pieces of timber and may project from a lateral face of the wooden module.

Modular building methods and systems using lightweight foam modular panels. Each panel includes one or more channels formed through the length of the foam body, where the channels are configured to receive splines therein. The channels may include pairs of top and pairs of bottom channels, each channel being offset from the center of the foam body, so that the channels are oriented towards the respective panel faces. Splines may also be positioned along the top and bottom of the panel (such splines forming a web center portion of an I-beam). In combination with the splines in the top and bottom channels, these web center portion splines form horizontally extending I-beams at the top and bottom of each panel, so that stacked panels include a horizontally extending I-beam there between. Side-by-side panels include vertical posts there between, such that the system forms a post and beam construction system.

A concrete building block includes indicators along each end to assist in aligning a pin placed in the block with a channel in a like block in a course below as a wall is being constructed.

A method for manufacturing modular retaining wall blocks in natural stone, wherein the blocks are trapezoidal blocks having top and bottom surfaces with channels that receive offset connectors in multiple orientations for building upright, offset, and curved walls. Stone from a quarry is cut or split to form substantially rectangular elongate blocks having top and bottom surfaces, opposed side faces, and opposed ends. A series of channels running parallel to the side faces is cut in each of the surfaces, the top channels lying across from the bottom channels but offset therefrom. The elongate blocks are then cut between opposing pairs of channels to form trapezoidal blocks having front and rear faces.

An improved system of interlocking building blocks is provided. The system of interlocking building blocks includes a top block component and a bottom block component that are removably attached to each other to form a modular block with a hollow interior. The hollow interior can interchangeably receive a number of components, for example motors, electronics, and batteries. The exterior of the modular block includes a system of octagonal openings that are shaped to receive an octagonal connector for coupling adjacent modular blocks, or for receipt of flange bearing for an axle for example. Collectively, interlocking blocks can be joined together to build and create a generally limitless number of robust and modular structures and devices.

A self-bracing, two-way moment frame precast system for industrial support structure and method of erecting a precast industrial support structure without temporary or permanent bracing or shoring are disclosed. This is accomplished by utilizing a moment frame element in two directions to create free standing tower that requires no bracing during erection or in service. The system also utilizes a connection that allows the erection crane to achieve alignment during erection such that the entire system can be erected by a ground based personnel.

According to one embodiment, an insulated structure includes a frame comprising a plurality of wall studs coupled together and a plurality of foam boards attached to the frame to form a continuous insulative wall. A plurality of fasteners attaches the foam boards to the frame. Each fastener includes an elongate shaft and a cap. The elongate shaft is configured to penetrate through a foam board and into a wall stud to couple the components together. The cap is configured to be positioned atop a foam board to distribute a load relatively evenly to the foam board. A sealing tape is applied across seams between adjacent foam boards and over the fasteners' caps to seal the wall. A sealing caulk is applied to secondary fasteners and penetrations to seal the wall. In some embodiments, the structure has a fastener density of about 1 fastener per 243 in.sup.2 of foam board.

According to one embodiment, an insulated structure includes a frame comprising a plurality of wall studs coupled together and a plurality of foam boards attached to the frame to form a continuous insulative wall. A plurality of fasteners attaches the foam boards to the frame. Each fastener includes an elongate shaft and a cap. The elongate shaft is configured to penetrate through a foam board and into a wall stud to couple the components together. The cap is configured to be positioned atop a foam board to distribute a load relatively evenly to the foam board. A sealing tape is applied across seams between adjacent foam boards and over the fasteners' caps to seal the wall. A sealing caulk is applied to secondary fasteners and penetrations to seal the wall. In some embodiments, the structure has a fastener density of about 1 fastener per 243 in.sup.2 of foam board.

An architectural building block system including a block having three side walls, each having an inside surface and an outside surface, the three side walls cooperate to form a triangular tube, the outside surface of each of the three side walls extending from the inner surface to the outer surface and the inside surface of each of the three walls is disposed substantially at right angle to each of the inner surface and the outer surface; and three channels, each channel disposed on one of the three side walls on the inner surface, wherein each channel extending from the inside surface to the outside surface of one of the three side walls and each pair of the three channels configured to receive a rebar.