33results about "Building reinforcements" patented technology

Ultrahigh-toughness concrete and a preparing method thereof are disclosed. The concrete is prepared from, by weight, 380-580 parts of cement, 150-170 parts of slag powder, 250-380 parts of fly ash, 200-400 parts of quartz sand, 13-15 parts of bamboo wood phenolic alcohol liquified resin, 13-18 parts of polypropylene resin, 0.5-1.5 parts of carboxymethylcellulose, 23-47 parts of core-shell acrylic acid elastic emulsion, 5-10 parts of a chemical-resistant modifier, 14-18 parts of bamboo fibers, 2.5-8.5 parts of nanometer silicon particles, 7-13 parts of nanometer calcium carbonate, 3-5 parts of anionic polyacrylamide, 3.7-8.3 parts of poly(diallyldimethylammonium chloride), 0.4-1 part of poly(ethylene glycol) acrylate, 20-30 parts of an acrylic emulsion, and the like. The ultrahigh-toughness concrete has high tensile strength, high compressive strength, ultrahigh ductility, good energy consumption capacity and good elastic modulus.

Stay-in-place fascia forms and methods and equipment for installing thereof. A concrete form includes a vertical component and a horizontal component, the vertical component located substantially perpendicular to the horizontal component. Also, the form includes an interior surface, at least a portion of the interior surface providing a form for supporting uncured concrete; wherein the uncured concrete forms a concrete structural portion upon curing of the uncured concrete; and wherein the interior surface remains attached to the concrete structural portion after curing. The form may include inserts and compatible form attachments. Also, forms including recesses may be utilized to reduce the weight thereof. Lifting equipment and accessories may be utilized to lift the form from a form holder and set same in place. Forms contain the work area as soon as it is installed to minimize fall hazards and the time, costs, and downtime associated with installation of safety measures.

The invention discloses a grout sleeve for connecting prefabricated member steel bars and a construction method of the grout sleeve, relating to the technical field of precast concrete members. The grout sleeve is used for solving the connection problem of prefabricated member steel bars and has the advantages of simplicity in construction, low cost, high strength and reliability in connection. The grout sleeve comprises a sleeve body, sealing rings and a set bolt, wherein the sleeve body is provided with a grout hole and a vent hole; the set bolt is arranged in the middle of the sleeve body; massive bulges are arranged on the inner wall of the sleeve body; the sealing rings are arranged at two ends in the sleeve body. When a prefabricated member is assembled, two reserved steel bars of the prefabricated member are inserted from two ends of the sleeve body, are fixed by the set bolt and squeeze into the elastic sealing rubber rings, then, a cement-based grouting material is filled from the grout hole, and the two reserved steel bars are connected to form a whole body through the sleeve. The grout sleeve can be used for connecting various prefabricated member steel bars.

The invention discloses a building embedded part device for shaping, positioning and adjusting in the technical field of building construction. The building embedded part device for shaping, positioning and adjusting comprises an annular supporting part serving as a main body support and a positioning part used for limiting the position of a steel bar main reinforcement, wherein the annular supporting part can be rotationally driven through a screw rod piece, and the annular supporting part is translated; the positioning part comprises a sliding end, a telescopic end and a positioning end, and a clamping structure is installed on the positioning part. The building embedded part device can shape and position the steel bar main reinforcement of a building embedded part, the sliding end adjusts the position of the positioning part according to the arrangement modes of different steel bar main reinforcements, and the positioning part can adjust the angle position on the supporting part; before the steel bar main reinforcement is inserted into a wear-resistant sleeve, the steel bar main reinforcement can be rotated, finely adjusted and locked through a rotating sleeve, so that the steel bar main reinforcement can be quickly aligned and inserted, and a steel bar disc reinforcement can be quickly fixed to the strong-structure side of the steel bar main reinforcement through the clamping structure.

The invention discloses a precast pre-stressed beam with shelving corbel outs. The precast pre-stressed beam comprises a beam body and a pre-stressed steel strand as a main reinforcement embedded in the beam body. The beam body is provided with stirrups stretching out of an upper surface of the beam body. The precast pre-stressed beam is characterized in that ends of the precast pre-stressed beam are provided with shelving corbel outs; trapezoidal notches are arranged below the shelving corbel outs; and the beam body is provided with multiple supporting formwork through-holes in a longitudinal direction. The precast pre-stressed beam provided with the invention adopts the shelving corbel outs so that construction is convenient; a cost is low; and integrity is good. The trapezoidal notches at the ends of the beam body have large gradient so that inclined stirrup arrangement after beam installation is convenient and beam end shearing strength is improved.

The invention discloses an assembled prefabricated floor connecting system and a construction method of the assembled prefabricated floor connecting system. The construction method comprises the following steps of 1) binding floor reinforcing mesh sheets in a workshop, embedding a plurality of longitudinal stressed reinforcing bars on the reinforcing mesh sheets, and connecting longitudinal stressed reinforcing bars on the two reinforcing mesh sheets through a plurality of connecting reinforcing bars and sleeves; 2) pouring concrete of the reinforcing mesh sheets to form floors; 3) screwing out the sleeves to separate the interconnected floors, and transporting the floors to a construction site; 4) welding an anti-shear steel plate to a steel beam at a construction site; 5) enabling the connecting reinforcing bars to penetrate through the anti-shear steel plate, and connecting the two ends of the connecting reinforcing bars with the longitudinal stressed reinforcing bars on the two floors through the sleeves; 6) and pouring concrete at the joints of the floors and the steel beam. The floors are effectively connected at the joints, the stress performance of the connection positionsof the joints is guaranteed, meanwhile, the prefabricated floors are manufactured in batch in the workshop, the on-site hoisting and mechanical connection operations are convenient, the construction speed is high, and the production efficiency is improved.

The invention relates to a combined-type fiber gridding rib layer product and a preparation method of the combined-type fiber gridding rib layer product. The combined-type fiber gridding rib layer product comprises a plurality of layers of fiber gridding cloth, the fiber gridding cloth is spliced by a sizing agent, and the plurality of layers of fiber gridding cloth is combined to the gridding rib layer in a stacked manner. The combined-type fiber gridding rib layer product is combined by adopting the plurality of layers of fiber gridding cloth, monofilament number and gridding density of sub-thread fiber bundle of the gridding rib layer are not limited by the fiber gridding cloth production process, reinforced density is greatly increased, the monofilament number of the sub-thread fiber bundle is reduced, the distribution uniformity of the ribs is improved, and the strength of a gypsum plaster board product and the levels of fire stability and fire endurance performance are effectively improved.

The invention provides a prefabricated whole filling wall and a structural connection method thereof. The filling wall comprises a wall body, a wall skeleton is arranged in the wall body, and is connected with a structural beam, a partition plate is arranged between the wall body and the structural beam, and sealing parts are arranged on the two sides of the partition plate. The structural connection method includes the following steps that the wall body is installed in place, and the wall skeleton of the wall body extends into pre-casting space of the structural beam; the structural beam is casted, and meanwhile an interval is reserved between the structural beam and the wall body; the partition plate is plugged into the interval; the two sides of the partition plate are sealed. The prefabricated whole filling wall and the structural connection method thereof have the advantages that an integrated prefabrication mode of the filling wall is changed, and the structural beam is separatedfrom the prefabricated filling wall through the partition plate; through the structure, force of the prefabricated wall is only transmitted to a structural beam on the lower layer, and cannot be accumulated downwards, and the stress requirement of the structure is met.

The invention provides a construction method of a long steel bar stool cast-in-situ floor, and belongs to the technical field of building construction. The method includes the steps of selecting steel bars, machining and manufacturing long steel bar stools, installing a formwork and beam slab steel bars, installing the steel bar stools, binding negative steel bars, casting floor concrete, carrying out overflow-surface leveling on the floor concrete, shearing off steel wires to take out the steel bar stools, repairing the concrete surface, cleaning the steel bar stools and the like. According to the method, the strength and rigidity of the steel bar stools are utilized for controlling deformation and sinking, caused by construction external force, of the negative steel bars, and thus the thickness deviation of negative steel bar protection layers of the floor is controlled; meanwhile, the height of the steel bar stools is utilized for controlling the thickness of the floor and the levelness of the floor concrete surface; the steel bar stools can be recycled, and construction is easier and more convenient.

The invention relates to a reinforcing protection and repairing method for a historical earthen site and an ancient building city wall. The method comprises the following steps of A, appearance sample reserving; B, surface mold drawing; C, frame beam laying; D, reinforcing mesh tying; E, concrete pouring; and F, curing agent spraying. The reinforcing protection and repairing method for the historical earthen site and the ancient building city wall aims at solving or at least relieving the problem that an existing repairing and protecting method cannot restore the original appearance of a historical site after repairing and reinforcing.

The invention discloses a built-in vibrating device based on sleeve post-grouting construction. The device comprises a vibrating ring, a plurality of limiting supports and a vibration excitation device, wherein the vibration ring comprises a convex nozzle and a vibration main ring, the vibration excitation device comprises a clamping nozzle and an internal vibration excitation system, and the clamping nozzle is meshed with the convex nozzle to enable the vibration main ring to vibrate under the action of the internal vibration excitation system. The limiting support comprises a rectangular groove and a rubber limiting plug and is used for fixing the vibration ring. The device has the advantages of being convenient to install and easy to operate, the compactness of the grouting material forsleeve post-grouting construction can be effectively improved, and the connecting quality of components is guaranteed.

The invention relates to a structural stressed superposed component used for a concrete floor system, the superposed component is composed of a soleplate (1) and is characterized in that the invention also is provided with a top boom (2) and a web member (3); wherein, the top boom (2) is connected with the template (1) into a whole through the web member (3) thereby forming a force-bearing component of a truss board (4); the soleplate (1) is internally provided with at least a reinforcing steel bar (5) parallel to the top boom (2); the top boom (2) is connected with the reinforcing steel bar (5) into a whole. The invention is applicable to cast-in-situ reinforced concrete or a hollow floor system, a roof system, walls and a foundation slab of the prestressed reinforced concrete as well as a vierendeel bridge girder, and is particularly suitable for a hollow flat slab.

The invention relates to a side wall open-hole anchoring bidirectional off-position rod piece connector. The side wall open-hole anchoring bidirectional off-position rod piece connector comprises first elastic combination nuts, a first anchoring sleeve, a middle connecting sleeve, second elastic combination nuts, a second anchoring sleeve, a first pressure-bearing nut assembly and a second pressure-bearing nut assembly; the first elastic combination nuts and the second elastic combination nuts include a plurality of pieces of threaded clamping pieces in elastic reset parts, and the first anchoring sleeve and the second anchoring sleeve include open-hole anchor cups; the first pressure-bearing nut assembly and the second pressure-bearing nut assembly include pressure-bearing nuts and guide-out screwing combination pieces, and a plurality of window holes are formed in the side walls of first open-hole anchor cups and second open-hole anchor cups; the first elastic combination nuts and the second elastic combination nuts are oppositely arranged in the window holes of the side walls, and the first anchoring sleeve is connected with the second anchoring sleeve through the middle connecting sleeve, and the first anchoring sleeve and the second anchoring sleeve are anchored by the middle connecting sleeve; and the pressure-bearing nuts tightly press the anchoring sleeve to provide thecompressive capacity of rod pieces. According to the side wall open-hole anchoring bidirectional off-position rod piece connector, the size is small, the material consumption is less, the construction speed is fast, the detection and the inspection are convenient, and the acceptance criteria is clear.

The invention relates to an elastic combined anchoring ring spherical hinge steering connector of an offset rod piece. The offset rod piece is connected with two embedded components. The elastic combined anchoring ring spherical hinge steering connector comprises an elastic combined anchoring ring, a first anchoring sleeve, a second anchoring sleeve, a dumbbell connecting rod and a bearing nut assembly, wherein the dumbbell connecting rod is arranged between the first anchoring sleeve and the second anchoring sleeve and is suitable for multidirectional offset between two rod pieces; the elastic combined anchoring ring anchors the first rod piece, one end of the first anchoring sleeve anchors the elastic combined anchoring ring, and the other end of the first anchoring sleeve anchors a first spherical nut of the dumbbell connecting rod; and one end of the second anchoring sleeve anchors a second spherical nut of the dumbbell connecting rod, and the other end of the second anchoring sleeve anchors the second rod piece. The tensile function of the connector is realized, and the pressure-bearing nut compresses the first anchoring sleeve to realize the compression resistance of the connector. The elastic combined anchoring ring spherical hinge steering connector is small in size, less in material consumption, high in construction speed, convenient to detect and inspect and clear inacceptance standard, and the requirements of existing mechanical connection specification are met.

The invention discloses a frame beam steel bar connecting system of a profile steel column and concrete and a pouring construction method. The frame beam steel bar connecting system comprises a profile steel component, a steel bar component and a fixing assembly, wherein the profile steel component comprises a profile steel column body and a profile steel beam body; the fixing assembly comprises a fixing bolt and a fixing binding wire; the profile steel column body and the profile steel beam body are fixedly connected through a column beam connecting component; the column beam connecting component comprises a column body fixing clamping plate and a beam body fixing clamping plate; and the beam body fixing clamping plate is fixedly connected to the right side of the column body fixing clamping plate. The invention relates to the technical field of reinforced concrete connecting structures. According to the frame beam steel bar connecting system of the profile steel column and the concrete and the pouring construction method, a clamping groove of the profile steel column body is formed in advance according to a drawing, then the column body fixing clamping plate is clamped at the clamping groove, the beam body fixing clamping plate is clamped at one end of the profile steel beam body, and then the fixing bolt is used for fixing, so that the installation is accurate and rapid, the labor intensity and difficulty during construction are reduced, and the working efficiency is improved.

The invention discloses a latticed single-row reinforced Z-shaped sectional concrete column and a making method, and belongs to the field of shock absorption and disaster prevention. The concrete column consists of concrete 1, step grid-like common reinforcing meshes 2, latticed single-row reinforced nets 3 and steel ties 4; a reinforcement framework of the Z-shaped column is Z-shaped, and three latticed single-row reinforced nets 3 are welded to form two Z-shaped limbs; the step grid-like common reinforcing meshes 2 are vertically welded at the ends of the two limbs of the Z-shaped latticed single-row reinforced nets; and the steel ties 4 are vertically welded in the centers of transverse horizontal steel bars of the common reinforcing meshes 2. By adopting single-row reinforcement, the concrete column is simple in construction and low in consumption of steel bars; the reinforcement is formed by welded latticed reinforcement sheets, so that the concrete column is suitable for industrialized production; by adopting latticed reinforcement, oblique web ribs have good shearing resistance, crisp shearing damage of the special-shaped sectional short column can be prevented, and the anti-earthquake ductility is improved; the ends of the section of the column are tightly combined with ecological wallboards or ecological wall bricks by using short steel bars, so that the aims of reinforcing the integrity of a house and promoting the integral anti-earthquake and energy dissipation capacity are fulfilled, and the concrete column is suitable for a rural house.

The invention relates to the technical field of construction engineering, in particular to a full grout sleeve for building steel bar connecting. The full grout sleeve includes a sleeve body, a groutcavity is formed in the sleeve body, a grout pipe communicating with the grout cavity is integrally formed on the sleeve body, a butt-joint installation seat is arranged inside the grout cavity, and an insertion opening corresponding to the butt-joint installation seat is formed in the sleeve body. The full grout sleeve has the beneficial effects that the full grout sleeve for steel bar connectingcan quickly fix and install steel bars by clamping and fixing, and can further quickly connect and fix the steel bars whose positions cannot be effectively corresponded by universal connection devices, so that the speed of building construction can be effectively increased, the subsequent disassembly is further facilitated, and thus the full grout sleeve is more suitable for existing modular building construction needs.

The invention discloses a waterproof node for a steel stand, which comprises a cushion layer, a structure bottom plate, a leveling layer, a non-bonding steel strand, a steel plate, a novel waterproof cover and a waterproof rubber ring. Three layers of elastic waterproof coatings are coated between the cushion layer and the steel strand, water-meeting expansion rubber rings are sleeved on the steel strand at two positions in the structure bottom plate, a round groove is arranged on the upper surface of the structure bottom plate, a first ring groove is positioned at the bottom of the round groove, the waterproof rubber ring is arranged in the first ring groove, the steel is arranged at the bottom of the round groove to cover the waterproof rubber ring, the upper end of the non-bonding steel strand penetrates through the steel plate to be fixed on the steel plate through an anchor, the novel waterproof cover is fixed with the steel plate through a bolt to cover the steel strand and the anchor, the leveling layer is arranged above the structure bottom plate to completely cover the novel waterproof cover, and the upper surface of the leveling layer is in a horizontal shape. The waterproof node for the steel strand is excellent in waterproof performance.

The invention provides a joint structure, a building body and a joint structure construction method, and relates to the technical field of building construction. The joint structure comprises a flexible first connecting rib and a flexible second connecting rib, wherein the first connecting rib and the second connecting rib are fixed in a first construction component and a second construction component on the two sides of a joint respectively; the first connecting rib is provided with an exposed first connecting part so as to form a first annular structure on the side wall of the joint of the first construction component; and the second connecting rib is provided with an exposed second connecting part so as to form a second annular structure on the side wall of the joint of the second construction component; and the first annular structure and the second annular structure are correspondingly communicated and/or distributed in a staggered mode. The first annular structure and the second annular structure can form a connecting bolt with a cementing material in the joint, the structure of the connecting bolt is similar to an anchoring bolt with an external thread, the anchoring strength between the connecting rib and the cementing material can be effectively enhanced, and therefore the tensile and shear strength of the joint structure can be effectively improved so as to narrow the joint.

The invention discloses a reinforcing steel bar lapping connector. The reinforcing steel bar lapping connector comprises large-radius main reinforcing steel bars and a connecting mould, wherein the large-radius main reinforcing steel bars are two large-radius main reinforcing steel bars which are lapped vertically up and down; the connecting mould comprises two hollow semicircular cylinders; a partition plate is arranged between the hollow semicircular cylinders; screw holes are respectively formed in the two hollow semicircular cylinders; the two large-radius main reinforcing steel bars are respectively placed into the two hollow semicircular cylinders; and the large-radius main reinforcing steel bars are fixed through nuts which penetrate through the screw holes. A connecting area of theconnecting mould is provided with an adjustable range; and the positions of the large-radius main reinforcing steel bars are adjusted by loosening the nuts. The reinforcing steel bar lapping connector is mainly applied to a reinforcing steel bar mounting process, is used for providing temporary support for a longitudinal reinforcing steel bar, and can make the perpendicularity of the main reinforcing steel bars be within an error range; and after the mounting of the reinforcing steel bars is finished, the device can also be detached very conveniently.

The invention discloses a composite wall. The composite wall comprises two pieces of composite wallboard foam boards or rock wool boards, a piece of composite wallboard is mounted on one side of a beam or a column or a wall frame, cement slurry is used for brushing the foam boards or the rock wool boards on the inner side of the wallboard, the foam boards or the rock wool boards are parallel to square steel and are plump without hollowing, a layer of cement slurry is scraped again, and a piece of composite wallboard is mounted on the other side of the beam or the column or the wall frame to form a wall structure with the interlayer of two pieces of composite wallboards as the foam boards or the rock wool boards. According to the composite wall, the novel steel framed composite wall is designed, thus on the basis that the stability of the original steel structure of the wall is maintained, steel materials can be greatly reduced, the cost is saved, the wallboards are lighter, and transportation is easy.

The invention provides a reinforcement-secured anti-floating assembly, comprising a base, a screw and a fixing hook. The base comprises an upper portion and a lower portion. The diameter of the upper portion is greater than that of the lower portion. A connection of the upper portion and lower portion is provided with a step. The bottom end of the lower portion is provided with a blind hole. The screw is in threaded connection with the blind hole. The fixing hook is composed of a connecting ring and a pull hook. The connecting ring is movably connected with the lower portion. The reinforcement-secured anti-floating assembly disclosed by the invention is capable of substituting an existing way of steel reinforcement being tensioned via steel wires and allows quick and fixed connection of the steel reinforcement and a formwork, and no wire end is left at the bottom of a floor after a hollow floor is cast, thereby ensuring no future trouble is left. The reinforcement-secured anti-floating assembly is applicable to hollow floor technologies.

The invention discloses a construction method of an adjustable assembly type stirrup bracket, and relates to the field of municipal engineering. The construction method comprises the following steps that step 1, the size of a stirrup is determined according to the installation height of a field sleeve, the size of thick angle steel is measured by using a steel ruler before the thick angle steel iscut, and the angle steel is cut by using a cutting machine according to the measured size; step 2, the angle steel is welded according to the size through a welding machine, full welding is required,and fixation must be stable; and step 3, four selected jacking supports are cut into equal-distance lengths, the jacking supports are welded to the stirrup after cutting is completed, and the distance is preferably within 300 mm to 500 mm. The construction method of the adjustable assembly type stirrup bracket is easy to operate, position accuracy is guaranteed, specifically, the large sleeve with the high precision requirement is adjusted and positioned, and when the sleeve with the diameter larger than 1000 mm is installed, the position of the stirrup bracket can be adjusted vertically andhorizontally, and the position accuracy of the stirrup bracket is guaranteed; and when the sleeve with the diameter larger than 500 mm and smaller than 1000 mm is installed, the stirrup bracket can betaken out and repeatedly used after installation except for vertical and horizontal position adjustment.

The invention aims to solve the problem that a conventional fiber rib cannot be bent, and provides a bendable fiber rib. The bendable fiber rib is characterized in that a fiber is soaked in a glue that is elastic and bendable after solidification, and finally the outmost layer is covered by a layer made of a glue that is rigid after solidification. After the fiber is soaked and solidified by the glue that is elastic and bendable after solidification, the fiber must be totally covered by the glue, and no fiber is allowed to stretch out the solidified glue. The fibers in the same bundle of bendable fiber ribs comprises at least a kind of fiber, and the fiber can be an inorganic fiber, an organic fiber, or a mixture of an inorganic fiber and an organic fiber. The bendable fiber rib can replace steel bar in a certain range, and is especially suitable for being applied to the tensile field. When the bendable fiber rib is bent, the outmost layer made of the glue that is rigid after solidification will be broken down, and the broken part can be repaired by painting the same glue.