RU2161231C1 - Curvilinear multilayer fence panel - Google Patents

Abstract

FIELD: construction engineering; members of prefabricated spatial coverings. SUBSTANCE: panel made by means of flexible form whereon concrete is placed has external bearing concrete layers and internal heat- and steam-insulating layers. Reinforcing cage of panel is made of planar nets arranged within external concrete layers, as well as transverse vertical mats and longitudinal bearing and transverse fixing rods spaced through certain distance apart. Vertical cage is made in the form of set of loop-shaped members rigidly fixed together by means of pins; their sides are bent out perpendicular to loop plane and passed behind planar net. Transverse locking pins are placed on bent-out ends and longitudinal ones are passed through eyes of loop-shaped members. On concave side of panel planar nets are spaced apart through certain distance between vertical cages and are locked on longitudinal working pins. EFFECT: facilitated manufacture. 2 cl, 7 dwg

Description

 The invention relates to the field of construction, in particular to external enclosing structures made of reinforced concrete, and can be used as an element of prefabricated spatial coatings of various sizes and curvatures, as well as for the device of bay windows or curved external wall panels.

 Known spatial reinforced concrete coatings of thin-walled single-layer prefabricated elements such as shells. To ensure rigidity and perception of the arising efforts, coatings have ribs and tightenings, and to ensure thermal insulation they require subsequent installation or spraying of insulation [1], and in some cases a reinforced base made of cement-sand mortar or concrete under the roof [2].

 In the well-known three-layer panels [3] with an insulating layer of effective heat-insulating material, one of the outer layers is a carrier, and the other performs a protecting function. The carrier layer has a significant thickness or is made with ribs, and the thickness of the layer creating the base of the rolled roof is selected for structural reasons, since this layer together with the carrier layer does not work on the perception of loads.

 The disadvantages of the known structures is the impossibility of solving the problem of performing three-layer curvilinear structures of the coating with external bearing layers.

 The closest in technical essence and the achieved effect is a reinforced concrete enclosing element, including the upper and lower slabs, contour and concrete cross ribs, seamlessly connecting the slabs, and insulation between them in the form of inserts [4].

 The disadvantage of this design is its practical impracticability due to the inability to form them on matrices with curved surfaces due to the technological difficulties of ensuring the design geometry of the product and the relative position of the structural elements when laying and compacting the concrete mixture, as well as the large overall dimensions.

 The technical problem is to simplify the manufacturing technology of a curved layered fencing panel with external bearing layers due to the possibility of using the method of perishing.

 The problem is solved in such a way that in the curved laminated panel of the fence containing the outer thin-walled concrete layers from the concave and convex sides of the panel and the internal vapor barrier and heat insulation layers connected by bonds, and the reinforcing cage according to the invention, the reinforcing cage is made of flat nets located in external concrete layers placed with a step of transverse flat vertical frames and longitudinal working and transverse fixing rods, while vertical frames are made In the form of a series of loop-shaped elements rigidly connected by rods with branch ends bent perpendicular to the plane of the loop and wound behind a flat mesh, the transverse fixing rods are laid on the bent ends of the branches, and the longitudinal ones are freely passed into the eyes of the loop-shaped elements, with flat grids placed from the concave side of the panel with the gap between the vertical frames and fixed on the longitudinal working rods, while the connections are made rigid or flexible. In addition, rigid bonds can be made of lightweight concrete.

 The proposed panel design differs from the known one in that the reinforcing cage is made of flat meshes located in the outer concrete layers placed between them with a pitch of transverse flat vertical frames and longitudinal working and transverse fixing rods, while the vertical frame is made in the form of a series of rigidly connected rods loop-shaped elements with branch ends bent perpendicular to the plane of the loop and wound behind a flat mesh, the transverse locking rods are laid on the bent ends of the branches s, and the free longitudinal skipped lugs of loop members, wherein the upper outer layer of the mesh fixed on the longitudinal operation rod and arranged with a gap between the vertical frames. To improve the thermal performance of the panel, rigid bonds can be made of lightweight concrete.

 The reinforcing cage made in this way has the ability to bend freely from the plane, taking a curved shape, which allows curvature to be given to the multilayer elements formed on the plane by dying in the period of time before the concrete mix loses its ductility. The joint work of the outer concrete layers, providing rigidity and increased bearing capacity of the panel, is achieved by connecting the layers with dowels made of light concrete or metal bonds.

 The design of the fencing panel is technologically advanced in manufacturing, provides industrialization of the construction process when assembling insulated spatial coatings of various curvatures. The thinness of concrete layers and their joint work reduce concrete consumption. As a result of the compatibility of the work of the outer concrete layers, the panel structure has great rigidity and high bearing capacity.

 In FIG. 1 shows a panel framework in a perspective view; in FIG. 2 - site of installation of metal bonds for a variant with flexible connections (axonometry); in FIG. 3 is a fragment of a longitudinal section of a panel for a variant with rigid connections; in FIG. 4 - the same for the option with flexible connections; in FIG. 5 is a fragment of a cross section of a panel; in FIG. 6 is a longitudinal section of the panel after the camber for the option with rigid ties; in FIG. 7 is the same for the flexible connection option.

 The curved laminated fence panel in thickness consists of external thin-walled concrete layers: 1 (from the convex side) and 2 (from the concave side), and inner layers: vapor barrier 3 and heat-insulating 4. The panel is reinforced with an armature frame made of transverse flat frames 5, including rigidly connected by rods 15 loop-shaped elements 6 with branches 16 bent at right angles to the plane of the loops, longitudinal working rods 7, fixing transverse rods 8, a continuous grid 9 and individual grids 10. Layers of a panel enes metal links 11 (for the embodiment of flexible links connecting the layers) or concrete splines 12 (for the embodiment of rigid links connecting the layers).

 The panel is formed on the plane by sequentially laying the frame elements and panel layers: a grid 9 is laid on a flexible pallet of form 13, the transverse frames 5 are bent at right angles to the plane of the loops 16 under the grid, and metal connections 11 are established with the institution of bent ends under the grid 11 ( for the option of connecting the layers with metal bonds); above the grid and the bends of the transverse frames and metal ties are installed transverse locking rods 8, fixed at the ends on the longitudinal sides of the form 14; the bottom layer of concrete 1 is laid; the insulation layer 4 is expanded; dowels 12 are poured (for the option of connecting the layers with dowels made of light concrete); vapor barrier 3 is laid; longitudinal rods 7 are passed into the eyes of the loop-shaped elements 6 of the transverse frames 5; individual nets 10 are laid out between the vertical frames 5 and tied to the rods 7; the upper concrete layer 2 is laid and smoothed. Prior to the setting of concrete, the molded panel is killed. When the panel dies, the longitudinal rods 7 are bent and slide in the body of the compressing concrete layer 2. The rods do not buckle, as they are passed into the eyes of the transverse frames 5 attached to the mesh 9. The mesh 9 is held in the design position by the rods 8 mounted on the sides of the mold 14 The volume reinforcing cage bends and dies in the design position when it dies. Separate nets 10 in the concrete layer 2 from the upper (concave) side are laid with a gap in order to avoid a significant shift of concrete by their transverse rods when the panel dies.

 1. Modern spatial structures (reinforced concrete, metal, wood, plastics): Reference / Ed. Yu.A. Dykhovichny, E.Z. Zhukovsky. - M.: Higher school., 1991 - 543 p.

 2. Spannut L.S. Design and static testing of KZHS shell panels for use in the Kamchatka region // Studies of reinforced concrete thin-walled spatial structures. - M .: NIIZHB, 1991 - S. 46-60.

 3. Architecture of civil and industrial buildings: Civil buildings: Textbook. for universities / Under the general. ed. A.V. Zakharova - M .: Stroyizdat, 1993 - 509 p.

 4. SU A. S. 992696 E 04 C 2/50. BI 4, 1983. Reinforced concrete enclosing element. Korobov L.A., Kachanovsky E.K., Korobov V.A., Belyanicheva L.G. (prototype).

Claims (2)

 1. Curved layered fence panel containing external thin-walled concrete layers from the concave and convex sides of the panel and internal vapor barrier and heat insulation layers connected by bonds, and a reinforcing cage, characterized in that the reinforcing cage is made of flat nets located in the outer concrete layers located with a step of transverse flat vertical frames and longitudinal working and transverse fixing rods, while vertical frames are made in the form of a series of loops rigidly connected by rods shaped elements with the ends of the branches bent perpendicular to the plane of the loop and wound behind a flat mesh, the transverse fixing rods are laid on the bent ends of the branches, and the longitudinal ones are freely passed into the eyes of the loop-shaped elements, and on the concave side of the panel, the flat grids are placed with a gap between the vertical frames and fixed on longitudinal working rods, while the connections are made rigid or flexible.  2. Curved laminated panel fencing according to claim 1, characterized in that the rigid connection is made of lightweight concrete.

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