A beam for formwork systems, with a transverse cross-section that is symmetrical with respect to an axis of symmetry and having, in succession:

a first portion with two C-shaped profiles, which are arranged mirror-symmetrically with respect to the axis of symmetry, with mutually opposite cores and cavities directed outward, connected by a plate for connection between two mirror-symmetrical wings thereof,

a connecting element, which extends along the direction of the axis of symmetry, between the plate for connection and a base,

a second portion with two protrusions which extend from the base and are provided with transverse end elements.

A modular pipe brace assembly is provided for supporting a concrete wall panel, where the modular pipe brace assembly has a plurality of brace sections that each have a pipe with one of at least two standard lengths and a connection plate attached to each end of the pipe. At least two of the plurality of brace sections are attached together in longitudinal alignment by engaging the connection plates to define a pipe assembly with a desired length. An adjustable shoe assembly is attached to each end of the pipe assembly and is configured to engage a ground anchor or a concrete wall panel. The plurality of brace sections may, for example, include a low-load brace section that has a low-load capacity pipe and a high-load brace section that has a high-load capacity pipe.

A modular pipe brace assembly is provided for supporting a concrete wall panel, where the modular pipe brace assembly has a plurality of brace sections that each have a pipe with one of at least two standard lengths and a connection plate attached to each end of the pipe. At least two of the plurality of brace sections are attached together in longitudinal alignment by engaging the connection plates to define a pipe assembly with a desired length. An adjustable shoe assembly is attached to each end of the pipe assembly and is configured to engage a ground anchor or a concrete wall panel. The plurality of brace sections may, for example, include a low-load brace section that has a low-load capacity pipe and a high-load brace section that has a high-load capacity pipe.

Brackets for securing vertical strongbacks to horizontal walers secured to a face of a concrete wall form. Each bracket has a flange adapted to be mounted to an upper surface of the waler, a standoff connected to the flange and extending perpendicular to and beyond the waler to a distal end for defining a strongback-receiving pocket between the waler and the distal end for receiving the strongback. A wedge is operatively coupled to the distal end for pinching the strongback between the wedge and the waler for securing the strongback to the waler.

Brackets for securing vertical strongbacks to horizontal walers secured to a face of a concrete wall form. Each bracket has a flange adapted to be mounted to an upper surface of the waler, a standoff connected to the flange and extending perpendicular to and beyond the waler to a distal end for defining a strongback-receiving pocket between the waler and the distal end for receiving the strongback. A wedge is operatively coupled to the distal end for pinching the strongback between the wedge and the waler for securing the strongback to the waler.

A concrete forming system combining the ease of erection and load carrying capabilities of scaffolding with a simplified erection system. Scaffold frames provide the vertical support and walers, supported by and spanning from scaffold frame to scaffold frame, provide the horizontal support. The wet concrete's hydrostatic pressure is placed on the walers, which transfer the load to the scaffold frames that act like trusses. The scaffold frames have at least two legs and are secured at their bottom to perform as a cantilever or, when the hydrostatic pressure is greater, they are secured at their bottoms and tops to perform as a truss fixed at both ends. As such, this forming system does not use form ties which results in an obstacle free form face and facilitates forms that simply hang from the walers.

A concrete forming system combining the ease of erection and load carrying capabilities of scaffolding with a simplified erection system. Scaffold frames provide the vertical support and walers, supported by and spanning from scaffold frame to scaffold frame, provide the horizontal support. The wet concrete's hydrostatic pressure is placed on the walers, which transfer the load to the scaffold frames that act like trusses. The scaffold frames have at least two legs and are secured at their bottom to perform as a cantilever or, when the hydrostatic pressure is greater, they are secured at their bottoms and tops to perform as a truss fixed at both ends. As such, this forming system does not use form ties which results in an obstacle free form face and facilitates forms that simply hang from the walers.

A removable form tie system and methods of construction using same are disclosed. The removable form tie system may comprise first and second brackets for respectively mounting to a first and second forms spaced apart from one another. A wire runs from the first bracket to the second bracket. Each bracket preferably comprises a fastening wall and a channel adapted to receive one end of the wire. Each bracket may further comprise a holder for receiving the wire at a substantially orthogonal angle after being received by the channel. The holder may comprise a portion of a stiffening wall extending substantially orthogonally away from the fastening wall, as well as a detent extending substantially orthogonally away from the first stiffening wall. In the alternative, the holder may be an extension from the fastening wall, wherein the holder extends substantially orthogonally away from the first fastening wall and then bends back to be generally parallel to the first fastening wall. Where the forms are plywood, a bracket may include a stiffening wall extending generally orthogonal away from the fastening wall, wherein the stiffening wall includes a sleeve adapted to receive a pin. Methods of using the form tie system include using the brackets with sleeve and pin arrangement to secure one or more braces, such as walers or strong backs, to maintain rigidity of the forms. The disclosed inventions advantageously permit wet concrete to be poured between the forms and troweled with ease. The wire may be easily removed from the concrete, even days after the concrete has cured, for an aesthetically pleasing result without concern of wire oxidization issues.

A removable form tie system and methods of construction using same are disclosed. The removable form tie system may comprise first and second brackets for respectively mounting to a first and second forms spaced apart from one another. A wire runs from the first bracket to the second bracket. Each bracket preferably comprises a fastening wall and a channel adapted to receive one end of the wire. Each bracket may further comprise a holder for receiving the wire at a substantially orthogonal angle after being received by the channel. The holder may comprise a portion of a stiffening wall extending substantially orthogonally away from the fastening wall, as well as a detent extending substantially orthogonally away from the first stiffening wall. In the alternative, the holder may be an extension from the fastening wall, wherein the holder extends substantially orthogonally away from the first fastening wall and then bends back to be generally parallel to the first fastening wall. Where the forms are plywood, a bracket may include a stiffening wall extending generally orthogonal away from the fastening wall, wherein the stiffening wall includes a sleeve adapted to receive a pin. Methods of using the form tie system include using the brackets with sleeve and pin arrangement to secure one or more braces, such as walers or strong backs, to maintain rigidity of the forms. The disclosed inventions advantageously permit wet concrete to be poured between the forms and troweled with ease. The wire may be easily removed from the concrete, even days after the concrete has cured, for an aesthetically pleasing result without concern of wire oxidization issues.

The plastic formwork includes a main member made of polypropylene, stone powder, flame retardant, and reinforcing agent mixed together, where the main member has a number of channels inside and the channels are sealed by caps. To produce the plastic formwork, polypropylene, stone powder, flame retardant, and reinforcing agent are stirred, heated, and melted together, and the mixture is driven through a mesh forming machine to produce the main member. Finally, caps are attached to the main member to seal the channels. The manufacturing process allows convenient, precise, and uniform addition of materials, thereby improving production efficiency and product stability. The formwork provides fire retardation, heat isolation, sound proof, water tightness, and reusability. Additionally, cement paste is prevented from flowing into the main member, thereby avoiding the breeding of bugs and molds.