A scaffold having an opposing pair of half funicular trusses that are detachably or pivotably connected in the middle to establish a funicular arched truss is provided, where when in a detached or pivoted state, storage and transporting a plurality of the half funicular trusses is simplified.

Disclosed herein is an article of manufacture that increases the efficiency of forming a building material having a keyed joint with a waterstop imbedded within the building material. The article allows the easy formation of a keyed joint between formed solid slabs (typically concrete) with a waterstop properly imbedded between the slabs.

Disclosed herein is an article of manufacture that increases the efficiency of forming a building material having a keyed joint with a waterstop imbedded within the building material. The article allows the easy formation of a keyed joint between formed solid slabs (typically concrete) with a waterstop properly imbedded between the slabs.

A system for retaining a flowable and curable building material to form a portion of a foundation includes side walls disposed in a predetermined configuration having a first side wall and a second side wall, and at least one component having an interior cavity disposed in one of the side walls. A bracket assembly includes an outwardly bounding reinforcement post for each of the side walls, a separator bar having a plurality of apertures sized to receive and retain each of the reinforcement posts at locations corresponding to nominal widths of the at least one component. A barrier is disposed between the outwardly bounding posts. The barrier and the component in the side wall is retained in the foundation after the building material cures. The barrier prevents backfill from filling a volume between the outwardly bounding posts.

A pocket isolator form, for placement around a footer before a concrete slab is poured, is formed from plural barrier sections. At least some of the sections are curved, so that a sharp re-entrant corned is not formed in the concrete slab. The curved sections may be assembled with straight sections to form barriers of various form shapes which avoid the creation of sharp re-entrant corners in the slab.

A pocket isolator form, for placement around a footer before a concrete slab is poured, is formed from plural barrier sections. At least some of the sections are curved, so that a sharp re-entrant corned is not formed in the concrete slab. The curved sections may be assembled with straight sections to form barriers of various form shapes which avoid the creation of sharp re-entrant corners in the slab.

The invention concerns the construction process and can be employed in the course of construction of buildings and structures of different purposes in order to reduce labor consumption during formation of floor slabs, and to facilitate integrity retention of a slab and hoisting equipment during the rotation operation. The carcassing method assumes simultaneous construction of bearing solid-cast reinforced-concrete structural vertical elements and hinged to them vertically oriented reinforced-concrete pivot floor slabs. The construction process involves preliminary installation of separating elements between slabs and bearing structures as well as between adjacent slabs. After the concrete has developed its strength, the above slabs shall be flipped to the horizontal position and butt joints between slabs and bearing vertical elements as well as between adjacent floor slabs shall be grouted. The vertical elements and floor slabs are formed in layers, vertical partition elements represent sheet-type or film-type polymer materials, the pivot hinge of floor slabs represent an elongated element located in the middle portion of a floor slab and whose longitudinal axis coincides with the slab rotation axis. Bearing elements shall be formed as columns. Tubular round-in-section hinge elements of horizontally adjacent floor slabs shall be located at opposite sides of the longitudinal axis of a column. Floor slabs shall be reinforced by a prestressed reinforcement cage made of a sheathed steel cable. Tendons shall be installed inside of floor slabs after their formation. For this, the solidifying grout is fed into cavity of the slip formwork inside a slab, linear voids are formed by means of channel formers. The longitudinal axis of a hinge runs through the mass center of a floor slab. Slabs shall be flipped in the ascending and descending order. Channel formers shall be shifted upon shifting the formwork or upon transition to the next layer. Channel formers shall comprise the broach for installation of tendons in channels. Channel formers are equipped with vibrators for compaction of the grout. After rotation of slabs, the reinforcing cable shall be placed inside transverse channels and shall be tensioned.

The invention concerns the construction process and can be employed in the course of construction of buildings and structures of different purposes in order to reduce labor consumption during formation of floor slabs, and to facilitate integrity retention of a slab and hoisting equipment during the rotation operation. The carcassing method assumes simultaneous construction of bearing solid-cast reinforced-concrete structural vertical elements and hinged to them vertically oriented reinforced-concrete pivot floor slabs. The construction process involves preliminary installation of separating elements between slabs and bearing structures as well as between adjacent slabs. After the concrete has developed its strength, the above slabs shall be flipped to the horizontal position and butt joints between slabs and bearing vertical elements as well as between adjacent floor slabs shall be grouted. The vertical elements and floor slabs are formed in layers, vertical partition elements represent sheet-type or film-type polymer materials, the pivot hinge of floor slabs represent an elongated element located in the middle portion of a floor slab and whose longitudinal axis coincides with the slab rotation axis. Bearing elements shall be formed as columns. Tubular round-in-section hinge elements of horizontally adjacent floor slabs shall be located at opposite sides of the longitudinal axis of a column. Floor slabs shall be reinforced by a prestressed reinforcement cage made of a sheathed steel cable. Tendons shall be installed inside of floor slabs after their formation. For this, the solidifying grout is fed into cavity of the slip formwork inside a slab, linear voids are formed by means of channel formers. The longitudinal axis of a hinge runs through the mass center of a floor slab. Slabs shall be flipped in the ascending and descending order. Channel formers shall be shifted upon shifting the formwork or upon transition to the next layer. Channel formers shall comprise the broach for installation of tendons in channels. Channel formers are equipped with vibrators for compaction of the grout. After rotation of slabs, the reinforcing cable shall be placed inside transverse channels and shall be tensioned.

The invention relates to a method for constructing a roof, the roof being intended for a building having a perimeter enclosure, the method having the production of a formwork configured to support the roof during its construction and to allow the casting of a slab, the construction of a supporting structure configured to ensure that the roof is mechanically resistant and that the roof is attached to the building receiving the roof, the casting of the slab performing a bonding material function, the slab being configured to transfer mechanical stresses within the supporting structure, and the construction of an external girdling, referred to as a cornice, connecting the roof to the building by girdling both a portion of an outer surface of the perimeter enclosure of the building and a portion of the girdling structure attached to the building, in order to increase the mechanical resistance of the roof to being torn off.

A concrete structure forming system includes a panel formed of a concrete material and a void former disposed on a section of the panel that is less than an entirety of the panel. The void former is monolithically formed in a single piece of a plastic material. The void former is removable from the panel in the single piece to leave a recess in the panel when the concrete material has reached a cured state.