WO2016153366A1

WO2016153366A1 - The connecting member of a construction element

Info

Publication number: WO2016153366A1
Application number: PCT/PL2015/000046
Authority: WO
Inventors: Piotr PYRTEK
Original assignee: Tacn Sp. Z O.O.
Priority date: 2015-03-25
Filing date: 2015-03-25
Publication date: 2016-09-29

Abstract

A connecting member used as a single connector or a pair of connectors, with a single connector being an elongated structural element ended with funnel-shaped fastening elements, characterised in that it is equipped with a central corrugation (9), which prevents the movement of the connecting member after pouring concrete, grooves (8) making it possible to add further reinforcement to a concrete wall, and equipped with threads (3) at both ends to facilitate safe disassembly of the formwork by removing the funnel-shaped fastening element.

Description

The connecting member of a construction element

The subject of the invention is a connecting member of a construction element for connecting formwork panels made of foamed material (used to erect concrete walls).

The state of the art knows a connecting member, e.g. from U.S. Patent US 5704180 A, and from Polish Patent PL 205 634 Bl, which connects two parallel panels made of high-density foam.

In the publication EP0995854A1 it was disclosed a building component including first and second high density foam panels each having inner and outer surfaces, top and bottom, and first and second ends, the panels arranged in spaced parallel relationship with their inner surfaces facing each other, and at least two bridging members extending between and through and molded into the panel members. Each bridging member includes a pair of elongated end plates oriented vertically and abutting against the outer surfaces of the panels; a thin narrow strip member joining the mid-areas of the end plates; a series of first narrow bracing members extending from positions adjacent a mid-point of the narrow strip member to positions spaced a short distance from the ends of the end plates; and a series of second narrow bracing members extending from positions on the first bracing members to positions on the strip member intermediate the plates and the mid-point of the strip member.

In the publication US2012186183A1 it was disclosed a masonry anchor and method of use for connecting first and second spaced-apart walls defining a cavity therebetween, the anchor including an anchor bracket including a slot and a pintle engaging and carried by the anchor bracket and extending outwardly from the anchor bracket and bridging a cavity between the first and second walls. The pintle includes first and second laterally spaced-apart hooks for being positioned and locked in the slot of the anchor bracket. The hooks have a nominal spacing between them that is greater than a width of the slot, and are deformable into a position wherein the hooks are spaced apart by a distance that is less than the width of the slot for allowing the hooks to be inserted into the slot, and have sufficient positional memory to return from its deformed position to its nominal spacing when manual pressure is released.

In the publication US2013277531A1 it was described an insulating formwork block, including an inner wall, and an outer wall connected to the inner wall by connection and/or reinforcement means, the outer wall being thicker than the inner wall. The insulating formwork block is characterized in that the outer wall consists of the first element attached to the inner wall, and a second element made of an insulating material applied to the first element, and in that the second element is provided in the form of a slide which is applied to the first element by a slider and which is L-shaped. The invention can be specifically used in the field of manufacturing insulating formwork blocks.

In the publication US2014150361A1 it was described an insulated core for a building block for a building wall, the block has spaced apart parallel face shells with the insulating core filling the space between the parallel face shells. The insulating core defines spaced apart parallel surfaces for engaging the respective face shells. The insulating core is provided with channels such that when the block forms part of a wall with other blocks, the channels form intersecting uninterrupted passageways for receiving elongated reinforcing members and grout to provide a reinforcing structure to the wall. A method of preparing a structural insulating wall for buildings and an insulating core including a metal connecting bar with lateral wings provided within at least one male interlocking member to provide a thermal break are also disclosed.

In the publication US2014174014 it was described a tie system is provided for use with a wall form for a cementitious backup wall and for use with a wall tie to connect between the cementitious backup wall and a veneer. The tie system includes a backup wall connector and a form connector. The form connector is connectable to the form and secures the backup wall connector in position as the wall form is filled. The connector may have heat transfer reducing perforations. The connector may have an outwardly positioned flange to which external wall members may be attached. The connector may have multiple gap-setting features.

In the publication WO2014087352 it was disclosed a dismountable module (for manufacturing at least one portion of a repeatably dismountable wall (of a construction. The module comprising: a first body adapted to define an outer surface of said wall, at least one structural member adapted to withstand the loads generated by the wall); the structural member (comprises a main body elongated along a first axis, arranged vertically in use, and a thickening protruding from said main body transversally to said first axis; the thickening defines a first face and a second face opposite to the first face and adapted to cooperate, either directly or indirectly, with a further module, superimposable on said module according to said first axis, so as to transfer a load from the further module to said structural member.

In the publication WO2006075827A1 it was disclosed a multipurpose sectional block which is easy in assembly and provides excellent durability, thereby being applicable for interior of a building or for armoring of the building. The sectional block includes: a block having two fixing holes symmetrically formed therein along the central line thereof; and bolts, each bolt having a bolt head formed on the upper portion thereof and having a threaded hole axially perforated therein, and a threaded bar formed on the lower portion thereof, whereby the bolts are securely fit into the fixing holes of the block. The fixing hole includes a hole drilled in the lower portion thereof for inserting the threaded bar thereto, a bolt insertion hole formed in the upper portion of the hole for inserting the bolt head thereto in such a way as for the bolt head to be depressed inside the block, and a tool insertion hole formed on the upper portion of the bolt insertion hole. The tool insertion hole is formed to be larger than the bolt insertion hole so that a user manipulates the bolt with a tool in a state where the bolt head is inserted into the fixing hole. The block includes a recess part formed on the edge thereof for providing a beautiful outward appearance and for forcedly fitting a shelf thereto.

In the publication WO2013093600A2 it was disclosed a structure with prefabricated concrete elements comprises metallic connection means for the vertical superimposed connection of said prefabricated elements, and blocking means of said connection means; said connection means are englobed in said prefabricated concrete elements, and said blocking means comprise screw fastening means. In the publication US2014182224A1 it was described a composite, prefabricated panel for building construction. A panel includes a central core having a first face and a second face. The central core includes structural framing members assembled to define at least one opening. A substantially rigid insulation is disposed in the at least one opening of the structural framing members. A settable cement, which may be, for example, phosphate ceramic, is provided on each of the first face of the central core and the second face of the central core to form a first face of the panel and a second face of the panel. The insulation may define a plurality of passages, each with phosphate ceramic extending through the passage between and being monolithic with the phosphate ceramic on the first face of the central core and the phosphate ceramic on the second face of the central core. A building system with such panels is provided.

The purpose of the invention is to provide such a structure of a connecting member that would facilitate the disassembly of the formwork after the erection of a concrete wall without causing any damage to the panels so that they can be reused.

The described invention is distinguished by ease of use, as well as the speed and precision of the assembly of foam elements. A connecting member has a cross-section of an l-bar whose ends are circular fastening elements (removable). Single or double combined members are used interchangeably for joining panels.

The nature of the invention involves two external, removable (circular) fastening pieces screwed into a central connecting member (corrugated) embedded in concrete. The piece in the double set is equipped with a flat that combines two connecting members thus increasing their strength.

The solution according to the invention allows for easy detachment of foamed material panels from a connecting member. The fastening element of the panels and the panels themselves can be reused.

An indisputable advantage of the invention is that a wall of poured concrete can be easily reinforced with a bracing structure by placing reinforcing elements and fastening them to the connecting members inside a concrete wall.

The subject of the invention is shown as an embodiment in figures, in which Fig. 1 shows the side view of the connecting member, Fig. 2 shows the top view, Fig. 3 shows the longitudinal and transverse sections, Fig. 4 shows the isometric views. The subject of the invention with a formwork system shown as an embodiment in figures, in which Fig. 5 shows the view of the formwork with the fastening elements of the connecting member, Fig. 6 shows a B-B cross-section of the formwork together with the connecting member, Fig. 7 shows a cross-section of the formwork system with the connecting member, Fig. 8 shows the axonometric view of the formwork system.

Fig. 1 shows a single connecting member in the form of a tubular element (2) ended with funnel-shaped fastening pieces (1) screwed/unscrewed from the connecting member to a thread (3) inside the connecting member, which makes it possible to rotate the fastening piece by 90° thus allowing it to be reused. The connecting member also includes a central corrugation (9), which prevents the movement of the connecting member after pouring concrete, and grooves (8) that make it possible to add further reinforcement to a concrete wall.

Fig. 2 shows a double connecting member in the form of two cylindrical elements (2) ended with funnel-shaped fastening pieces (1). Both connecting members are combined via a connecting plate (4), which provides rigidity.

Fig. 3 shows longitudinal and transverse cross sections of the cylindrical connecting member (2) together with a cross-section through the thread (3).

Fig. 4 shows an axonometric view of a double connecting member

(2) (combined via a connecting plate (4)), with the funnel-shaped fastening elements (1), and without them.

Fig. 5, 6, 7 and 8 show the construction element consisting of two panels made of foamed material (5) parallel to each other and connected via single and double connecting members.

Fig. 7 shows a cross-section of the formwork (5) and the view of the double connecting member (7). The figure shows the method of joining two construction elements made of foamed material. The formwork had been made in a manner so that the filling material did not flow out of the elements (6).

To remove formwork panels without damaging them, after the wall is erected, the funnel-shaped fasteners (1) should be unscrewed from the connecting member (2) with one move of the hand. The pieces removed in this way can be reused.

Claims

Patent claims

1. A connecting member used as a single connector or a pair of connectors, with a single connector being an elongated structural element ended with funnel-shaped fastening elements, characterised in that it is equipped with a central corrugation (9), which prevents the movement of the connecting member after pouring concrete, grooves (8) making it possible to add further reinforcement to a concrete wall, and equipped with threads (3) at both ends to facilitate safe disassembly of the formwork by removing the funnel-shaped fastening element (1).

2. The member according to claim 1, characterised in that at both ends of the connecting member there are funnel-shaped fastening elements (1) that facilitate the disassembly of the formwork so that both elements can be reused.