SUBSTANCE: invention relates to construction, in particular to wall panels for constructing buildings, houses and similar structures. Wall panel contains a concrete plate, two crossbars, two ribs, the first heat-insulating plate, two second heat-insulating plates, two third heat-insulating plates, two U-shaped elements. Concrete plate is equipped with the outer surface, the inner surface, two side surfaces, the upper and the lower surfaces. Outer surface and the inner surface are made in the form of rectangles and have larger square if compared to the other surfaces of the concrete plate. Side surfaces are located on opposite sides, the upper surface is located on opposite side from the lower surface. One crossbar is located on the outer surface along its upper edge from one side surface to the other one, the other crossbar is located on the outer surface along its lower edge from one side surface to the other one. Ribs are arranged on the outer surface parallel to the side surfaces from the upper surface to the lower surface. Herewith the ribs are spaced from an appropriate to each of them side surface. Surface of each of the ribs opposite to the outer surface is located from the outer surface at a larger distance than surfaces of the crossbars opposite to the outer surface. First heat-insulating plate is arranged between the ribs flush with the ribs surfaces opposite to the outer surface. Second heat-insulating plates are located along corresponding to each of them ribs and with overlap onto the first heat-insulating plates. Each U-shaped element is arranged vertically so, that it covers the relevant second heat-insulating plate on the side opposite to the outer surface. Third heat-insulating plates are located on the side of ribs facing towards the appropriate side surface, between crossbars, from the outer surface to the surface of large rib opposite to the outer surface.
EFFECT: technical result is improvement of heat-insulating properties of joints of adjacent wall panels and arranging the concrete plate in the zone of positive temperatures in case if there is heating of the building.
1 cl, 4 dwg
SUBSTANCE: building structure with side walls containing thermoplastic polymer comprises multiple vertical walls arranged at multiple levels, besides, each wall contains at least one substantially continuous central panel, made of thermoplastic polymer, and a pair of layers of cement plaster, which are arranged on opposite sides of the appropriate first central panel and form opposite surfaces of the appropriate vertical wall. Vertical walls of the lowest level are attached in the lower section to the support panel, and vertical walls of each level are mutually connected to limit one or more closed perimetres. The structure also comprises at least one covering wall fixed in the upper section to vertical walls of each level, in order to form one or more closed spaces and to mutually separate levels, besides, the covering wall of the highest level forms a roof of the building structure; a metal structure for connection of at least vertical walls of each level. The metal structure comprises for each of the vertical walls two first reinforcement nets, which are mutually joined and arranged between the sides of the appropriate first central panel and each of the appropriate plaster layers. The first reinforcement nets facing the adjacent surfaces of two of vertical walls, which are mutually joined, are jointly connected to each other. The metal structure comprises for each of the vertical walls at least one pair of the first metal vertical elements, which are C-shaped and substantially do not contain ruptures, are arranged in the side ends of the vertical walls and form a seat to receive the appropriate first central panel. Also the method is described to erect a building structure.
EFFECT: reduced time of construction, absorption of stresses acting at vertical walls.
10 cl, 19 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to production of multilayer antirust structures. Proposed article comprises, at least, one steel layer, antirust layer, foam plastic layer and layer of dried wood fibers. Proposed method comprises making work pieces, preparing panels of flaps and applying powder coating. Coiled steel is precut into strips to be leveled and stretched before coiling so that roll is placed on unwinder, steel strips are leveled, leveled strip is fed to roll mill whereat rolls deform it to required shape. Steel section is cut to work pieces of required size. Billets of article box are made from cold-rolled or hot-rolled steel and functional openings are punched in said billets. Metal surface is pretreated by dipping steel layers in baths in turns during application of paint layer in polymerisation tunnel or cyclic chamber for reliable bonding of metal with said layer. Then, said surface is washed by water. To remove oxides and rust metal surface is etched by acid for 15-30 minutes. Then, it is washed by water again. Acid etching effects are neutralised by dipping in bath for 3-5 minutes and washing by water with subsequent conditioning in bath with liquid solution. Then, phosphatising is performed to produce zinc-phosphate rustproof film. Then, painting or applying transfer coating is carried out with the help of powder polyether dye based on carboxyl-bearing saturated polyethers containing film-forming agent in amount of 50-60 wt %, pigment and filler - 35-50 wt %, other additives and admixtures making the rest. Layer of wood dried fibers are treated by synthetic binders and compacted to mat to be shaped to straps of MDF applied on inside or outside of multilayer articles.
EFFECT: higher reliability, antirust protection.
6 cl, 15 dwg
SUBSTANCE: flaky construction board consisting of the main layer (1), which, at least at one flat side has a coating that serves as a bearing layer (4). The bearing layer (4) includes at least three layers, namely, a thin transition layer (5) of a mortar, which is applied on the main layer (1), a layer (6) of a fibre glass cloth and a binding layer (7), made of a non-compressible hardened coating mortar with smoothened surface.
EFFECT: invention makes it possible to increase board strength.
19 cl, 1 dwg
SUBSTANCE: invention is related to the field of construction, in particular to coating panel. Coating panel comprises joined upper and lower belts and intermediate elements installed in between them. All panels elements are made of glass-fibre plastic and are joined to each other by means of lock joints. Upper and lower belts are created by plates with elements of longitudinal lock joints on internal surface. Between belts in longitudinal direction there are intermediate elements arranged being stiffening ribs. Intermediate elements are equipped with lock elements on upper and lower edges, which interact with response slots arranged on internal surfaces of upper and lower belts. Stiffening ribs are made in the form of extreme ribs, intermediate ribs and connecting rib arranged along lateral sides of panel. Connecting rid is installed in the point of plates joint. Cavities are formed between ribs, and end plugs are installed in panel ends.
EFFECT: increased resistance of structure to aggressive mediums, increased durability, simplified unit of panel elements connection and improved operational properties.
8 cl, 8 dwg
SUBSTANCE: invention relates to construction technologies and, particularly, to three-layer panels. The panel contains hard framework made of wood bars, non-structural heat insulation and sheeting. The wood bars are made plate-glued. The glued interlayer planes are parallel to sheeting plane. The reinforcing mesh is embedded into the glued interlayer along the whole length of wood bars and projects to 0.1÷0.25 of bar width in outward direction and, at least, at one side of the bars. Besides, bar plates are grooved from the wide side and adjacent bar grooves are located in a staggered order.
EFFECT: improved panel strength and stability of shape.
3 cl, 3 dwg
SUBSTANCE: multilayer wall panel containing interconnected layers one of which is carrying layer and is formed between removable timbering and the other is heat-insulating layer. Carrying layer is made as inner one of expanded-clay concrete with embedded reinforcement of PVC (PolyVinylChloride) pipes installed vertically and of metal rods placed horizontally. Heat-insulating layer is made of foam plastic where communications are laid. Additionally, multilayer wall panel contains face layer of waterproof gypsum-fiber sheet (WPGFS), reinforcing layer of fine-meshed glass fiber net, thermo-, water- and soundproof layer of extruded polystyrene foam, layer for interior finish of waterproof gypsum board (WPGB). The layers are interconnected by bonding, and on top, between thermo-, water- and soundproof layer of extruded polystyrene foam and heat-insulating layer of foam plastic, gap is formed because face layer of waterproof gypsum-fiber sheet (WGFS) with thermo-, water- and soundproof layer of extruded polystyrene foam and heat insulating layer of foam plastic with layer for interior finish of WPGB are higher than inner carrier layer of expanded-clay concrete. Also method for wall panel manufacturing and method for building outer wall erection of wall panels are described.
EFFECT: improvement of service characteristics of multilayer wall panel, and improvement of works safety, lowering of labor consumption, construction costs during erection of monolithic buildings outer walls made of panels.
12 cl, 2 ex, 3 dwg
FIELD: construction, particularly building elements of relatively thin form for the construction of parts of buildings, for example, sheet materials, slabs, or panel.
SUBSTANCE: roof slab comprises longitudinal metal ribs, perforated frame members made of thin-walled profiles and heat-insulation made as monolithic panel. Longitudinal rib walls are provided with slots. Frame member ends have cuts for end insertion in longitudinal rib wall slots. Frame members also have transversal notches for thin-walled profile retention by profile rotation or bending of profile edges projecting beyond the slot. Thin-walled profiles are arranged at different longitudinal rib cross-section heights in longitudinal direction of the ribs. Monolithic panel has thickness exceeding longitudinal rib cross-section height.
EFFECT: decreased metal consumption and structural height of roof slab cross-section.
SUBSTANCE: in the method to manufacture a mineral board, where they mix and homogenise initial raw water suspension in a raw materials tank, containing mineral fibre, a filler, binding substances, they feed and distribute the produced initial raw water suspension on a moving latticed conveyor, the initial raw water suspension is dehydrated using a self-flow gravity drainage and vacuum drainage to produce the main wet mat, the main wet mat is dried and shaped, additional treatment of the main mat is performed, and additional coatings are applied onto the surface of the dried main mat, they mix and homogenise the initial raw water suspension in the raw materials tank, which contains mineral fibre in the amount of 30-80%, a filler containing swollen perlite in the amount of 5-40%, clay in the amount of 5-30% at if required calcium carbonate in amount of not more than 20%, binding substances, which include starch in amount of 2-11% and if required cellulose binder in the form of paper in amount of not more than 10% of the total mass of dry solid substances of the board, they mix and homogenise in the additional raw materials tank the additional raw water suspension, containing liquid glass in the amount of 0.5-15% and/or thermosetting binder in the amount of 0.5-10% and if required clay in the amount of not more than 25% on the basis of total clay content in the mineral board equal to 5-30% and/or starch in the amount of not more than 9% on the basis of the total content of starch in the mineral board 2-11%, they apply the prepared water suspension in the form of foam with the help of a foam generator on the main wet mat with dehydration of the initial raw water suspension using vacuum drainage. At the same time in the mineral board local concentrations of components introduced as foam are gradually reduced along the thickness of the board in direction from the face to the rear side of the board, and local density of the board gradually decreases along the board thickness in direction from the rear to the face side of the board, and its value on the rear side of the board is not more than 1.2 times higher than its value on the face side of the board.
EFFECT: reduced energy costs for manufacturing of mineral boards and possibility to produce boards with improved quality characteristics.
2 cl, 3 dwg, 1 tbl
SUBSTANCE: multi-layer acoustic panel comprises a frame and a sound-absorbing board placed in its inner cavity. The frame is made in the form of a parallelepiped formed by front and rear walls, each "П"-shaped, with side ribs. Besides, on the walls there is slot perforation, made in the form of rectangles and arranged in rows with width of rows b1 and b2 and distance between them h1 and h2. Adjacent rows are arranged with displacement, and the number of slots in one row is even, and in the other one - odd, the perforation coefficient is accepted as equal or more than 0.25. There is a sound-absorbing board placed between front and rear walls of the frame. Walls of the panel are fixed to each other on top and bottom by vibration damping covers, which may be arranged with cells and be "П"-shaped. Front and rear walls of the frame may be made of stainless steel or galvanised sheet with thickness of 0.7 mm with a polymer protective-decorative coating of "Pural" type with thickness of 50 mcm or "Polyester" with thickness of 25 mcm, or from an aluminium sheet with thickness of 1.0 mm and with coating having thickness of 25 mcm. The sound-absorbing board comprises two perforated surfaces, between which two layers of sound-absorbing material are placed, adjoining the perforated surfaces and made of soft solid and shaped sound absorber, in which sound reflection coefficient is less than the sound absorption coefficient. Profiles of layers are formed by spherical surfaces, connected to each other so that as a whole each profile forms a solid dome-shaped profile, which focuses the reflected sound. Interrupted sound-absorbing layers arranged in focus of solid profiled layers, are made in the form of solids of revolution, for instance, in the form of balls, and are fixed with the help of rods parallel to perforated surfaces, which are stiffly connected to them by means of vertical fastening elements perpendicular to them, made, for instance, in the form of plates, one end of which is stiffly fixed on perforated planes, and the second one is made in the form of a yoke covering the rod and pulling it by a screw to the appropriate rod.
EFFECT: improved efficiency of sound suppressing.
3 cl, 2 dwg
SUBSTANCE: invention relates to fire-resistant building boards and method of their production, namely to fire-resistant boards made of wool, produced by weaving thin metallic threads from waste cans, tin, iron, non-ferrous metals, etc. Invention consists in the production of fire-resistant building board made of wool, produced by weaving thin metallic threads from waste cans, tin, iron, non-ferrous metals, etc.
EFFECT: invention makes it possible to reuse materials, maximises fireproof, soundproof and heat insulating properties of boards, increases the proportion of recycled materials and reduces the amount of wastes when dismantling buildings, and thus contributes to the development of ecologically clean production.
9 cl, 15 dwg
SUBSTANCE: in sound-absorbing elements of a room comprising shaped and perforated walls, between which there is a layer of a sound-absorbing material, besides, one of the walls is made smooth, and the sound-absorbing material is arranged in two layers, one of which, the harder one, is solid and shaped, and the other one, the soft one, is made as interrupted and is arranged above surfaces of the first layer, the sound-absorbing elements of the room contain a frame, window, door openings, openings for placement of lamps and acoustic barriers, made in the form of stiff and perforated walls, between which there is a sound-absorbing material arranged into two layers, one of which, the harder one, is made as solid and shaped, of complex profile, made of inclined faces directed downwards, and connected with horizontal faces, in which resonant holes are made, and the other one - the soft one, is made as interrupted and is arranged under sound-reflecting surfaces of the first layer. The solid shaped layer of the sound absorbing material is made from a material, in which the coefficient of sound reflection is more than the sound absorption coefficient.
EFFECT: increased efficiency of noise absorption.
3 cl, 5 dwg
SUBSTANCE: invention is designed for use in the field of scattering and transfer of acoustic oscillations for the required distance, and also for use in the construction industry, for instance, as light bearing structures and heat-insulating covers protected against atmospheric and other effects, apart from the damaging mechanical one. The passive acoustic element comprises a foam plastic coated with a membrane from all sides - with a film of "Scotch tape" type, making it possible to bend the foam plastic without its damage and evenly distributed the acoustic signal along the entire cross section of the foam plastic.
EFFECT: cheaper and simplified design, bending of a panel in various planes at a certain thickness for any degree, without considerable deterioration of acoustic abilities, propagation o sound to all sides in three extends of freedom and outside of the material, increased sound capacity of oscillation transfer due to contactless action at a membrane only due to oscillated air, for instance.
FIELD: power industry.
SUBSTANCE: condensation steam turbine power plant includes an acoustic operator cabin that is sealed and equipped with a life support system in the form of an artificial microclimate system with a control panel, as well as a workstation. The cabin frame is made in the form of acoustic noise absorbing panels.
EFFECT: invention allows increasing operating efficiency of the power plant, rationally using secondary energy resources, as well as improving labour conditions of service personnel.
SUBSTANCE: heat insulation coating represents a mixture of metallised and non-metallised ceramic microspheres, as a binding substance of which a mixture is used containing styrene-acrylic latex (5.0-10 wt %), sodium liquid glass (1.0-3.0 wt %) and low-molecular silicon rubber (4.0-6.0 wt %). Metallisation of ceramic microspheres is arranged from a soft magnetic iron metal, with thickness of 800-900 angstrom. In process of coating application, microspheres are exposed to magnetic power lines, for creation of which on the reverse side of the surface of the item of complex configuration, in respect to the side, onto which a coating is applied, there is a steel core, an induction winding, wires to supply current and voltage.
EFFECT: higher efficiency and productivity of heat insulation works.
SUBSTANCE: structure of a room comprises a frame of a room, window and door openings, acoustic barriers of shop surfaces and unit sound absorbers of conical and prismatic types above noisiest process equipment. Acoustic barriers comprise profiled and perforated walls, between which a layer of a sound-absorbing material is arranged. Elements of a sound-absorber of prismatic type above noisiest process equipment comprise a frame suspended by hooks, for instance, on cables or directly fixed to a rigid wall or a ceiling of a production room. The frame is arranged by its form in the form of two cubic surfaces, one of which is external, the outer one, is arranged as perforated, and the other one, the inner one, - acoustically transparent, besides, the sound-absorbing material wrapped by a meshy nylon fabric is arranged in the gap between frames. The relation of the ratio (H/W) of parameters of the production room to thickness HI of the acoustic barrier is in the optimal range of values 0.0007÷0.006, and the relation of the ratio (H/W) of the room height to its width to the ratio (H2/R) of thickness of the sound absorber element to its height of suspension is in the optimal range of values 0.27÷0.68. Elements of the sound absorber of conical type comprise a rigid conical frame with a round cover, tightly adjacent to the base of the cone as a result of a fastening spring, arranged inside the frame and connecting a metal cap, arranged at the cone top with a hook for suspension to the production room ceiling. On the inner conical surface of the frame there is a sound-absorbing element from mineral fibre in a wrapper from coarse fabric or sackcloth. The frame with the round cover have perforation in the form of holes of round, slot or rectangular shape and are made of metal.
EFFECT: invention makes it possible to increase efficiency of noise absorption due to expansion of the frequency range and secondary absorption of sound waves reflected from a sound absorber.
2 cl, 5 dwg
SUBSTANCE: sound-absorbing structure of a room comprises a frame of a room, window and door openings, acoustic barriers of shop surfaces and unit sound absorbers of conical and prismatic types above noisiest process equipment. Acoustic barriers comprise profiled and perforated walls, between which a layer of a sound-absorbing material is arranged. Elements of a sound-absorber of prismatic type above noisiest process equipment comprise a frame suspended by hooks, for instance, on cables or directly fixed to a rigid wall or a ceiling of a production room. The frame is arranged by its form in the form of two cubic surfaces, one of which is external, the outer one, is arranged as perforated, and the other one, the inner one, - acoustically transparent. The sound-absorbing material wrapped with a meshy nylon fabric is arranged in the gap between frames. The relation of the ratio (H/W) of parameters of the production room to thickness HI of the acoustic barrier is in the optimal range of values 0.0007÷0.006, and the relation of the ratio (H/W) of the room height to its width to the ratio (H2/R) of thickness of the sound absorber element to its height of suspension is in the optimal range of values 0.27÷0.68. Elements of the sound absorber of conical type comprise a rigid conical frame with a round cover, tightly adjacent to the base of the cone as a result of a fastening spring, arranged inside the frame and connecting a metal cap, arranged at the cone top with a hook for suspension to the production room ceiling. On the inner conical surface of the frame there is a sound-absorbing element from mineral fibre in a wrapper from coarse fabric or sackcloth. The frame with the round cover have perforation in the form of holes of round, slot or rectangular shape and are made of metal.
EFFECT: invention makes it possible to increase efficiency of noise absorption due to expansion of the frequency range and secondary absorption of sound waves reflected from a sound absorber.
2 cl, 5 dwg
SUBSTANCE: method includes filling of slots with an elastic sealing material or a putty, soundproof properties of which meet normative requirements. Measurements are additionally carried out in one-third octaves in the range of frequencies of 100-1,250 Hz. A panel from silicate glass is used as a soundproofing measure with the following normative values of sound insulation, serving as calibration assessments with permissible deviation of ±0.5 dB: 100 Hz…R=23 dB; 125 Hz…R=24.5 dB; 160 Hz…R=26 dB; 200 Hz…R=27.5 dB; 250 Hz…R=29 dB; 315 Hz…R=30.5 dB; 400 Hz…R=32 dB; 500 Hz…R=33.5 dB; 630 Hz…R=35 dB; 800 Hz…R=33 dB; 1,000 Hz…R=31 dB; 1,250 Hz…R=29 dB.
EFFECT: invention makes it possible to expand the mode of testing.
FIELD: building units, particularly for heat insulation.
SUBSTANCE: article comprises layer of heat-insulation material and mineral fiber material having opposite sides, two major surfaces and thickness defined by above surfaces. Article includes fastening means to provide article fixation. Fastening means extends from the first article end in the first direction substantially parallel to one major surface. The first and the second ends of fastening means adjoin corresponding layer side. Fixing means may be increased in length to secure article to building structure so that fixing means may extend outwards from article sides. Length increase is carried out by applying pulling force to fixing means end.
EFFECT: provision of article adjustment in length and shape, possibility to connect article to itself, to adjoining sheets, to structure to be insulated and so on.
26 cl, 6 dwg, 2 ex