SUBSTANCE: invention relates to the field of construction, namely, to a support element designed for pasting-in into brick masonry and used in assemblies of slab support. The support element comprises a central rod and end anchor parts. The central rod is made of a concrete cylinder, having longitudinal corrugations on the outer side for better spread of an injectable formulation with depth of 0.1-0.5 cm and two transverse corrugations for installation of fixing rings with depth of 0.1-0.5 cm: an inner aligning ring in the form of a sprocket and an outer fixing ring with a reference hole in the upper part. In the centre of the cylinder there is a through hole for installation of the nozzle into it for injection of the chemical formulation.
EFFECT: increased strength of a support element.
3 cl, 3 dwg
The invention relates to the field of construction, and in particular to methods of repair works on objects with masonry load-bearing exterior and interior walls, in particular to the nodes bearing floor slabs, as hard and for free bearing floor slabs of various types on the bearing walls of solid and hollow brick.
Most modern methods of connection of the joists is the device grooves in the existing load bearing wall, followed by the bearing plate, which reduces the cross-sectional area of the wall and, as consequence, to decrease the bearing capacity.
Known reinforcing anchor element containing a rod of fiberglass enclosed in a sheath in the form of spiral windings of tape steel foil wound with an overlap of its coils. USSR author's certificate No. 1325152, IPC IS 5/07, 1987. A disadvantage of the known element is the impossibility of its use for connecting layers of concrete panels or walls of brick.
Known heating furnace lining, consisting of inner and outer layers of refractory smooth and burners, equipped in the walls of the furnace, characterized in that the walls of the furnace at a distance of 4-5 rows of the brickwork on either side of the axis of the burner units set nquery, moreover, the outer side of the anchorage of walls to perform step 1100-1500 mm, and the inner side in increments of 600-800 mm Anchors are made of heat-resistant metal plates with a thickness of 10 mm For fixing anchors in the refractory lining of the furnace use anchor pins with a diameter of not less than 16 mm, made of heat-resistant steel. Patent of Russian Federation # 26640, IPC7F27D 1/00, F27D 1/08, 2002
Known connecting element consisting of a Central rod and end anchor parts, made of unidirectional fibers, impregnated with a curable polymeric binder, and an anchor portion provided with a liner, the number of continuous fibers in any cross-section along the entire length of the element constantly and in the end anchor portions of the fibers are located at the periphery of the liner Patent of Russian Federation №2002009, IPC IS 5/12, 1993. The disadvantage of the coupling element is that it cannot use for connecting layers of concrete panels or walls of brickwork due to the reduced mesocestoides.
Known connecting element consisting of a Central rod and end anchor parts, made of unidirectional mineral fibers, impregnated with a curable polymeric binder, and an anchor portion provided with a liner, the number of continuous in the window at any cross section along the length of the element constantly and in the end anchor portions of the fibers are located at the periphery of the liner, in which the insert is made of unidirectional fibers, impregnated with a curable polymeric binder, or from a ceramic material and a Central core provided with a lock-stop. As the polymer binder used in the mixture of liquid and solid epoxy resins. As the polymer binder used vinyl ester binder. To anchor parts of the transverse corrugation depth of 0.1-0.5 mm Clip-limiter is made of a porous elastic plastic. The insert is made of a conical-cylindrical shape. The patent of Russian Federation №2147655, IPC IS 5/12, 2000 Prototype. The disadvantage of the coupling element is that it cannot use for connecting layers of concrete panels or walls of brickwork due to the reduced mesocestoides.
The technical result of the invention is the preservation of existing brick walls and pillars, reconstructed and restored buildings; use of older designs, as bearing; reduction shtrobleniya in existing walls and piers; increased strength, durability, spatial stiffness and seismic stability of buildings; preservation of the structural integrity of the structure.
The technical result is achieved in that the supporting element is designed for installation in masonry, containing C is tranny rod end anchor portion with the liner, lock limiter associated curable polymer or polymer binder, a Central rod made of concrete cylinder, having on the outer side of the longitudinal and transverse corrugation depth of 0.1-0.5 cm, in the center of the cylinder is made a through hole for the fitting (packer) for injection of the chemical composition, the latch stop is made in the form of two centering rings, the inner ring has the shape of stars, and the outer solid with a control hole in the top. The connecting element is provided with a supporting table, which is connected to a support element by chemical or mechanical anchors or support via is inserted into the connecting element of the valve. The reference element contains reinforcing bars. As an injectable composition used in the chemical composition based on epoxy resin type Hilti HIT RE 500.
The invention is illustrated in figure 1-3.
Figure 1 shows the General view is inserted into the brick wall of the support element on the side showing the main component parts. Alternatively, the illustrated bearing slabs through the supporting table, which is fixed to the support element by chemical or mechanical anchors, where: 1 - epoxy compound, 2 - concrete cylinder (reference ale is NT), 3 - hole injection, 4 - ring-star, 5 - ring with a control hole, 6 - supporting table, 7 - floor slab, 8 - brick wall.
Figure 2 - shows a front view of the support elements, where: 1 - epoxy compound, 2 - concrete cylinder (reference element), 3 - hole injection, 8 - brick wall.
Figure 3 - shows a General view is inserted into the brick wall of the support element on the side. Alternatively, the shows host bearing floor slabs using affixed to the support element rebar: where: 1 - epoxy compound, 2 - concrete cylinder (reference element), 3 - hole injection, 4 - ring-star, 5 - ring with a control hole, 7 - floor slab, 8 - brick wall, 9 - rebars
The support element 1 can evenly and over a larger area to transfer the load from the floor slab 5 on the brick wall 8. The hole for the insert concrete cylinder 1 in a brick wall 8 is made using diamond crowns of the appropriate diameter.
Pre-installation concrete cylinder 1 into the hole produced manually, concrete cylinder 1 is fixed to a brick wall 9 plastic ring 3 with the control hole. The control ring hole 4 is installed at the highest point. As the support element using concrete cylinder 1, in which the SAR is ü axis made the hole for injection 2. Previously in this hole for injection 2 install fitting (figures not shown)on the outer side of which is made of longitudinal and transverse corrugation depth of 0.1-0.5 cm
For the alignment of in-drilled-hole concrete cylinder 1 use the second (inner) ring in the form of "stars" 3. Then in the annular gap through the nozzle inject epoxy compound 7. After appearing in the inspection hole of the ring 4 epoxy composition 7 injectiona stop. After dialing the chemical composition of the strength of the supporting element can be used to support the floor slabs by setting as an expansion anchors, chemical anchors. Also it is possible to manufacture the supporting elements 1 with embedded items.
Plastic ring 4 allow you to lock the support element 1 in the hole immediately before injection and during the process of injection prevent extrusion of the support element 1 from the hole. Injectiona epoxy composition is performed by the dispenser. Mixing of the components is carried out in the spout of the faucet. Injectiona stop when the epoxy composition 7 in the inspection hole of the ring 4. After dialing the chemical composition strength plot of a brick wall with 8 installed in it a support element 1 can be used to set the base element 1 chemical anchors, and for pasting into supporting element 1 threaded rods and reinforcing bars to create a site bearing floor slabs 5 in the reconstruction of civil buildings.
Concrete cylinder 1, which is inserted into the brick wall 8, being a fairly durable material, able to perceive and point loads and transfer them to turn over the entire surface of the hole through the adhesive 7 on the brick wall 8. Since the surface area of the adhesive composition is quite large, the load is distributed evenly, allowing for use as load-bearing elements of the existing brick wall 8. At the same time the adhesive composition penetrates into the pores and cracks of the existing masonry, produces its volumetric hardening in the contact layer to a depth of 20-40 mm Inset produced by setting the support element 1 in the prepared hole and pumping the chemical composition based on epoxy resin type Hilti HIT RE 500 and analy. The compositions are used on the basis of the injection well as micro cements, injection materials based on silicates, isocyanates, acrylic gels.
1. Supporting element is designed for installation in masonry, containing a Central core and an end of the anchor portion, wherein the Central rod is made of concrete cylinder, having on the outer side of the longitudinal reef is recommended reading for a better spreading of the injection composition depth of 0.1-0.5 cm and two transverse ribs for installing retaining rings depth of 0.1-0.5 cm: inner centering ring-shaped sprocket and the outer retainer rings with a control hole in the top, in the center of the cylinder is made a through hole for the nozzle for injection of the chemical composition.
2. Supporting element according to claim 1, characterized in that it has a reference table, which is connected to a support element by chemical or mechanical anchors.
3. Supporting element according to claim 1, characterized in that the supporting element contains reinforcing bars.
SUBSTANCE: device to reinforce beam structures includes prestressed four-branch braced ties fixed at ends of the beam in its upper part, resting in areas of bending at hinged cylindrical supports with a pad, installed in the lower part of the beam and tightened by yokes. In the upper end zone of the beam there are angular profiles installed onto a footing, where braced ties are fixed as a tightened assembly.
EFFECT: increased bearing capacity due to balance of forces in all bands of a braced system.
2 cl, 4 dwg
SUBSTANCE: invention relates to the field of construction, in particular to protection against oxidation of the active and passive frames laid in the concrete mass. A method of injecting fluid into a porous material or a material having boundary lines, comprising the following steps is revealed in the invention: attachment of an injector to the indicated material, which defines the boundaries of a compression chamber at least with one surface of the indicated material; injection of the indicated fluid into the indicated compression chamber under low pressure; influence on the indicated fluid by an acoustic wave of high power by means of an oscillating element, passing directly into the indicated compression chamber.
EFFECT: provision of deep impregnation of surfaces or boundary lines of heterogeneous materials.
14 cl, 3 dwg
SUBSTANCE: invention relates to methods of reinforcing power constructions, which have existing or predictable collapsing sections, by means of strips of composition material. As strips used is woven or non-woven reinforcing filling agent from glass, basalt, synthetic polymer or carbon fibres. Said fibres are impregnated with polymer composition in amount 30÷60% from composite weight, providing their adhesion to power constructions and further hardening from +5°C to +100°C for from 5 minutes to two days. Polymer composition contains in wt %: epoxy resin 100, active epoxy diluent 5÷130, hardening agent 15÷110, thickening agent 5÷50, pigment or dye 0.5÷50. As gardening agent it contains product of interaction of amine component with monocarboxylic acids. as amine component used is mixture, consisting of primary aromatic amine or mixture of aromatic amines (A), secondary aliphatic amino alcohol (B) and tertiary aliphatic amino alcohol (C) in weight ratio A:B:C from 98:0.2:1.8 to 80:5:15. Monocarboxylic acid (D) is introduced in form of 25÷80% solution in monoatomic aliphatic or aromatic alcohol, or their ether with mono- or dicarboxylic acid, in ratio (A+B+C):D from 90:10 to 60:40 counted per 100% acid with further interaction by mixing in reactor at temperature from 50 to 130°C for from 20 to 120 minutes at rate of mixer from 100 to 3000 revolutions per minute.
EFFECT: increased adhesion of reinforcing strips from composition materials to the surface of constructions and their more effective reinforcement are provided.
SUBSTANCE: in the method to repair a building facade, including dismantling, of at least a part of masonry of oil facing bricks and development of new masonry of facing bricks with fixation on the bearing wall of the building, according to the invention, development of new masonry and its fixation is done by fixing anchors in the bearing wall of the building, onto which horizontal rows of reinforcement are laid, on each of which, using mortar, they lay several rows of bricks with a gap relative to the bearing wall of the building, at the same time the first and last rows of the new masonry of facing bricks are arranged with horizontal ventilation gaps in respect to the old masonry. Besides, as the masonry is fixed onto the bearing wall of the building, in the specified gap they lay mortar in the form of vertical strips that connect areas of fixation of anchors, for additional fixation of bricks and elimination of anchor corrosion.
EFFECT: increased service life of a repaired facade of a building without change in its appearance, elimination of moisture condensation on a facing brick and in a facing brick due to formation of a ventilation gap in the facade, due to which a directed air flow from bottom up, which carries away warm moist air from a wall, preventing moisture condensation, increased service life of a facade happens due to suggested reliable fixation of facing brick masonry on a bearing wall of a building.
SUBSTANCE: reconstructed building includes the old building with foundation and upper overlapping, additional foundation located lengthwise outer perimeter of the old building, vertical columns located on additional foundation with at least one interfloor overlapping located above the old building, and overlapping installed on upper part of vertical columns and connected to them, and walls fixed between vertical columns. Reconstructed building contains in addition at least one load-bearing suspension located above the old building and connected to the mentioned overlapping. Additional foundation is made so that its loading is out of the area of power impact of the old building on the foundation. Overlapping is designed as load-carrying structure. Interfloor overlapping is connected to load-carrying structure by at least one load-bearing suspension, it is mounted in direction from load-carrying structure to upper overlapping of the old building and is designed with possibility of interaction with vertical columns.
EFFECT: improving operating reliability of reconstructed building.
SUBSTANCE: spacers of a steel shell are made in the form of a pair of angular stands and connection planks, which are fixed to each other by means of a welded joint in the form of a complex joint, at the same time the connection plank is made as a steel plate, dimensions and shape of the end and middle section of which is taken from the conditions of the bearing capacity of the plank and the welded joint.
EFFECT: higher reliability of operation of welded joints in a butt joint and overlapping, reduced metal intensity and higher fire protection of steel shell spacers to reinforce a column.
15 cl, 11 dwg
SUBSTANCE: device for reinforcement of ceiling with wooden beams includes metal beams along its whole length, mounted in the gaps between wooden beams. Bottom point of metal beams is located below the top of wooden beams with total inner dimension of the rest of ceiling. At metal beam top, a top rod band passing through a wooden beam and connected by supports with lower rod band is mounted, with the wooden beam resting on lower rod band over supporting plates.
EFFECT: enhanced structural capability of ceiling under reconstruction.
SUBSTANCE: device for ribbed concrete plate reinforcement includes relief angles connected to a channel attached to transverse rib of the plate and to V-shaped reinforcement element positioned under reinforced longitudinal ribs and fixated to heel joints by bolts. Surfaces of reinforced ribs facing the reinforcement element are notched along the whole height of rib and element contact area. Free space between reinforcement element and ribs is filled with stressed sand concrete.
EFFECT: enhanced structural capability of a structure.
SUBSTANCE: device to unload bearing walls of buildings comprises metal unloading stands installed in holes made between windows inside an unloaded wall and connected to each other by frames of window openings, each of which consists of angles arranged at the inner and outer side of the unloaded wall, tightened to each other by threaded braces. At the same time the metal stands of unloading rest onto an existing foundation strengthened with augercast piles.
EFFECT: invention provides for unloading of bearing walls of buildings.
SUBSTANCE: adhesive contains at least 100 pts.wt unsaturated polyester resin suitable for air drying, 1-5 pts.wt hydrogenated castor oil, 10-250 pts.wt filler and 1-15 pts.wt anti-shrinking agent.
EFFECT: material for filling stone cracks according to the invention has advantages such as good permeability and reduced shrinkage, no stickiness after hardening and a glossy surface after polishing.
11 cl, 15 ex
FIELD: building, particularly for concrete structures reinforcing.
SUBSTANCE: structure includes trussed tie bar and additional compressed member. Structure is provided with telescopic post having spring. Post is arranged between trussed tie bar and compressed member formed of channel bar. Compressed member is located in level with lower belt of beam to be reinforced and encloses it. Trussed tie bar ends are connected to compressed member, which in turn is secured to beam to be reinforced by compressed member ends through collars.
EFFECT: increased load-bearing capacity, reliability and service life of reinforced concrete floor beams and longitudinal ribs of ribbed slabs, possibility of full residue bearing capacity usage of structure.
FIELD: building, particularly to prevent separation of roofing material layers during roof repair.
SUBSTANCE: method involves injecting material forming liquid bitumen layer in roof area of separation through orifices arranged in waterproofing mat above the area; consolidating the area to be repaired. Orifices are spaced 0.2-2.0 m apart. At the beginning of material injection process air or water is removed from the cavities through above orifices and then emulsified bitumen, including 30-80% of bitumen, is fed. Emulsified bitumen is spread in cavity over the full area of separation using weight, which is moved over the roof surface. Before compaction the area of separation is heated up to 100-160°C and then held at this temperature up to bitumen dewatering and water vapor discharge from the area through above orifices in atmosphere.
EFFECT: increased reliability of waterproofing mat gluing in presence of water cavities regardless of separation area and reduced time of roof repair.
FIELD: building, particularly building reconstruction.
SUBSTANCE: method involves forming main drilled piles along building foundation perimeter, where the piles are arranged outside the foundation; mounting the main load-bearing supports on the drilled piles so that load-bearing supports are arranged in pairs from opposite sides of the building; mounting load-bearing girders on load-bearing vertical support heads, wherein the bearing girders are arranged in rows; erecting additional stories on the bearing girders. Main drilled piles extend for depth not less than building foundation depth in ground. Upper pile parts are pulled together in pairs. Additional drilled piles adapted to support additional load-bearing vertical supports are driven outside the building foundation beyond the main ones. At least one additional load-bearing support is arranged in the main vertical support row from one building side.
EFFECT: prevention of service performance reduction.
16 cl, 2 dwg, 2 ex
FIELD: building, particularly to recover load-bearing capacity of reinforced concrete frames of industrial and civil buildings.
SUBSTANCE: method to recover load-bearing capacity of reinforced concrete column subjected to concrete and reinforcement corrosion by column surface moistening, scoring, column cross-section widening, enclosing with ferrule and reduction of longitudinal compressing force application eccentricity involves deforming steel pipe; reducing steel pipe cross-section by compressing thereof with two rollers to impart oval cross-section to the pipe so that major oval axis is equal to three minor axes; cutting the pipe in longitudinal direction; inserting damaged column in steel ferrule so that major cross-sectional axis is directed in plane of compressing force application eccentricity and reducing eccentricity; connecting two halves of oval pipe in air-tight manner and filling gaps between steel ferrule and damaged column with expanding fine concrete injected through nozzles in the cavities in bottom-top direction; compacting concrete with vibratory action and applying stress to cross-section during concrete setting by compressing thereof from all sides by steel form to reinforce the whole structure.
EFFECT: possibility to recover load-bearing building frame capacity without production process stopping and decreased labor inputs.
FIELD: building, particularly to repair beams, walls, columns and poles.
SUBSTANCE: method involves installing reinforcing members on structure to be reinforced and connecting the members with fastening members; welding the fastening members to one reinforcing member; heating thereof and welding the heated members to opposite reinforcing member; terminating the heating operation. The fastening members may be installed between reinforcing member surfaces or laid on ends thereof. In the first case initial fastening member length is determined from the following equation: L=SBH-α·(T-Ta), where SBH is distance between inner reinforcing member surfaces, α is linear expansion factor of fastening member material, T is fastening member heating temperature, Ta is ambient temperature. In the second case fastening member length is defined as L≥So, where So is distance between outer surfaces of reinforcing members.
EFFECT: increased reliability of structure to be reinforced.
FIELD: building, particularly roof repair and waterproofing.
SUBSTANCE: method involves arranging roof paper between coating area to be repaired and movable heating member; heating organic binding material to soften thereof by means of the heating member; compacting the coating along with rolling-on roofing paper to heated coating.
EFFECT: increase service life of waterproof covering.
5 cl, 1 tbl
FIELD: building, particularly to repair waterproof coatings and roof coverings including organic binding agent.
SUBSTANCE: method involves determining brittle temperature of organic binding agent; calculating plastic range thereof; heating organic binding covering with heating member laid on the covering and compacting the covering. The organic binding agent is heated up to temperature 1.6-3.2 times greater than plastic range.
EFFECT: increased service life of repaired coating and increased quality thereof.
FIELD: repairing, for instance filling cracks, restoring, altering, enlarging, particularly for repairing monuments, museum pieces and applied and decorative art pieces.
SUBSTANCE: method involves drying joint and filling thereof with dry non-combustible materials before lead-based molten material pouring in joint; filling the joint with lead-based molten material, which is supplied through pouring channel system made of molding material, wherein the molding material provides predetermined geometry of sealed joint. The molten material is supplied as continuous jet. Joint to be sealed may be located in vertical or horizontal planes or in plane inclined at 0-90° angle with respect to horizontal plane. The lead-based molten material may be reused for repairing work performing.
EFFECT: reduced labor inputs and material consumption, increased environmental safety and joint sealing reliability, elimination of additional mechanical or chemical treatment.
17 cl, 2 dwg
FIELD: construction, particularly building reconstruction.
SUBSTANCE: method involves erecting foundation of inserted structure, forming through pass in-between and constructing one or several stories over the foundation. The stories are built of kit including vertical panels and floor panels, which are connected with existent building walls by tie members. Joints are hermetically sealed. Floor panels are installed on guiding means having opened parts. Opened parts of guiding means are welded with each other after structure assemblage. Roofs of adjacent buildings are extended up to inserted structure walls. Projection adapted to drain water from the structure is hermetically installed over joint between the roof and the inserted structure. Guiding means are made as outer centralizers in upper parts of vertical and floor panels and as inner centralizers in lower panel parts.
EFFECT: increased strength and air-tightness.
12 cl, 14 cl, 2 ex
FIELD: construction, particularly working measures on existing buildings.
SUBSTANCE: superstructure skeleton comprises lower row transversal frames arranged within the limits of building length and lower end transversal frames projecting out of the building length and including two belts. The end transversal frames have columns and trusses located from building outside and provided with parallel belts. Arranged in the trusses are upper row and end frames having two belts and including columns and trusses. Skeleton also comprises floor panels. Lower superstructure stories are provided with central columns installed in lower frame truss joints and are united with each other by structural stands of intermediate stories. Space of one intermediate story is free of frame structures. Main beams of upper intermediate stories are secured to upper frame trusses by means of suspension brackets.
EFFECT: decreased metal consumption of superstructure skeleton.