928results about "Girders" patented technology

The invention provides a reinforcing beam reinforced by adopting an out-of-service wind power blade and a method for determining the bending rigidity. According to the reinforcing beam, a plurality of grooves are formed in at least one surface of a reinforced concrete beam; the reinforcing layer comprises reinforcing ribs and a cement-based composite matrix, a plurality of protrusions are arranged on the surface of the cement-based composite matrix, the protrusions are arranged at intervals in the length direction of the cement-based composite matrix, and the protrusions are correspondingly embedded into the grooves, so that the reinforcing layer is connected with the reinforced concrete beam to obtain a reinforced concrete reinforced beam; wherein the reinforcing ribs are obtained by disassembling and cutting a main beam of the retired wind power blade. According to the reinforcing beam, the combining capacity of the reinforced concrete beam and the reinforcing layer is high, mutual slippage is avoided, the retired wind power blade composite material resources are utilized, the environment is protected, and the cost is saved while high-performance reinforcing treatment can be conducted on the damaged reinforced concrete beam structure or the reinforced concrete beam structure with insufficient bearing capacity.

The utility model belongs to the technical field of tension beam structures, and particularly relates to a three-way pre-tightening steel wire tension beam structure. A three-way pre-tightening steel wire tension beam structure comprises a cross beam, a steel wire and a pre-tightening assembly, the pre-tightening assembly is installed on the cross beam, a steel wire groove is formed in the cross beam, and the steel wire is installed in the steel wire groove through the pre-tightening assembly; the utility model provides a three-way pre-tightening steel wire tension beam structure, and aims to solve the problem of balance between the bearing capacity and the self weight of a cross beam in a tension beam structure in the prior art.

Natural bamboo is chemically treated to remove at least some lignin therefrom. As a result, the bamboo becomes more porous and less rigid, while otherwise retaining the aligned microstructure of bamboo fibers and constituent cellulose nanofibers. In some embodiments, the treated bamboo can then be pressed such that the lumina therein at least partially collapse, thereby improving the strength and toughness of the bamboo among other properties. In some embodiments, the treated bamboo can be infiltrated with a polymer or polymer precursor, and / or have non-native particles added to surfaces thereof to tailor properties of the resulting bamboo structure. By further modifying, manipulating, or machining the treated bamboo, it can be adapted to various applications.

The utility model discloses a space truss system plant structure, which is characterized in that a longitudinal support, a gable support and a roof horizontal support are arranged, so that a plant forms a space truss system, a wind-resistant column and a frame column become bidirectional components without lateral displacement, the calculated length of a plant column is greatly shortened, and the plant column can be stably supported under the condition that the requirement of specifications on the stability of the plant column is met. The strength advantage is fully exerted, the column section size is reduced, a large number of engineering materials are saved, and meanwhile the plant appearance is light and attractive. The roof system is simplified into a plane truss, the plane truss, the longitudinal direction of the plant and the gable wall form a space truss system, rod pieces such as upper and lower chord members and web members on the roof are reduced, the roof is light and simple, materials are saved, the self weight is reduced, and the total height of the plant is reduced under the condition that the effective use height of the plant is guaranteed.

The invention discloses a stone masonry house anti-seismic reinforcing structure and a construction method, and relates to the technical field of house reinforcing. The anti-seismic reinforcing structure of the stone masonry house comprises a wall body, and a door body reserved opening and a window reserved opening are formed in the surface of the wall body. According to the anti-seismic reinforcing structure for the stone masonry house and the construction method, the structural strength and anti-seismic performance of the house can be improved, during caulking, the two sealing blocks are driven by the moving module to move away from each other in a mortar joint, and at the moment, a grouting cavity can be formed among the mortar joint, the two sealing blocks and a sealing plate; a high-performance fiber-reinforced cement-based composite material UHP-ECC can be grouted into the grouting cavity, and the pressure is detected through the pressure sensor, so that the length of the caulking strip is convenient to control, the pressure of the caulking strip during grouting is convenient to control, the conditions that the caulking strip has bubbles and is not compact are avoided, waste of caulking materials is avoided, the caulking quality is guaranteed, and the caulking efficiency is improved. And the reinforcing quality is further ensured.

A kind of I-beam section increasing fixed buckle device belongs to the field of building construction, it is by steel support, movable support component, double sleeve nut composition;Steel support plate and movable support component are connected by double sleeve nut, and are fixedly connected with I-beam and welded steel component.The present application realizes the double connection and fixation of traditional steel structure section increasing method construction, increases the stability and safety of connection;It is convenient to operate, low in cost and high in efficiency;Only need to hoist in place once, realize cost reduction and energy saving.

The utility model relates to the technical field of steel structure house building, and discloses a ring beam and steel beam connecting structure which comprises two steel beams, a ring beam, a first connecting piece and a second connecting piece, the two steel beams both extend in the length direction of a masonry wall and are arranged in parallel in a spaced mode in the thickness direction of the masonry wall, and the first connecting piece is connected with the second connecting piece. The masonry wall is located on the lower side of the interval between the two steel beams. The ring beam adopts a metal pipe, the metal pipe is arranged at the top of the masonry wall, and the metal pipe is fixedly connected with a constructional column of the masonry wall through a first connecting piece; the steel beams are fixedly connected with the metal pipes through second connecting pieces. The structure is simple, connection is reliable, the construction process is simplified, the construction period is shortened, and the technical problems that in the prior art, due to the fact that the space between the top of the masonry wall and the bottoms of the double steel beams is narrow, ring beam construction cannot be conducted through the concrete construction process in the prior art, and stability of the masonry wall is difficult to guarantee are solved.

The application relates to the field of building steel structure heat preservation, in particular to a steel structure system internal heat preservation system, which comprises a steel beam cold bridge heat preservation structure, the steel beam cold bridge heat preservation structure comprises an inside beam heat preservation structure, the inside beam heat preservation structure comprises a bonding agent layer, a foam glass layer, a troweling mortar layer and a fixing assembly, the bonding agent layer is used for pasting the foam glass layer on the inside of the steel beam, the troweling mortar layer is attached to the outside of the foam glass layer, the fixing assembly comprises a first connecting part and a second connecting part, the first connecting part penetrates into the inside beam heat preservation structure and is fixed on the inside of the steel beam, and the second connecting part is connected to the first connecting part and abuts against the troweling mortar layer. The application realizes the application of the foam glass layer in the steel structure through the pasting method, the foam glass is fixed through the special fixing assembly, the scheme does not need to damage the foam glass, and therefore the heat preservation performance of the steel structure is improved.

The utility model relates to the technical field of constructional engineering, in particular to a steel structure variable cross-section conversion joint. The steel structure variable cross-section conversion node comprises a connecting assembly, the connecting assembly comprises a first connecting piece and a second connecting piece, cavities are formed in the first connecting piece and the second connecting piece, one end of the second connecting piece is arranged in the cavity of the first connecting piece, and a gap is formed between the inner side wall of the first connecting piece and the outer side wall of the second connecting piece; a first partition plate is fixedly arranged in a cavity of the first connecting piece, the periphery of the first partition plate is fixedly connected with the inner side wall of the first connecting piece, and one end of the second connecting piece is fixedly connected with the first partition plate. Wherein the gap is constructed as a first grouting area, a second grouting area is constructed in the cavity of the second connecting piece, an overflow hole is formed in the side wall of the second connecting piece, and the first grouting area is communicated with the second grouting area through the overflow hole. The steel structure variable cross-section conversion joint is convenient to construct, and meanwhile the effect of beautifying the appearance can be achieved.

The utility model discloses a steel beam convenient to position, which comprises a steel base plate, an upper connecting steel plate and a lower connecting steel plate, the upper connecting steel plate is positioned at the top of the steel base plate, the lower connecting steel plate is positioned at the bottom of the steel base plate, and the steel base plate, the upper connecting steel plate and the lower connecting steel plate are of an integrally formed structure. A movably-connected connecting sleeve is arranged on an opening in one side of the steel base plate, a connecting column is arranged on the other side of the steel base plate, and an inserting hole matched with the connecting column is formed in one side of the connecting sleeve. Through arrangement of a connecting sleeve and a connecting column, the two steel beams are guided during butt joint, then a positioning column of the connecting column is arranged in a positioning hole in a sleeving mode in the moving and inserting process of the connecting column, so that the two steel beams are subjected to auxiliary positioning in the butt joint process, and when the positioning column moves to a limiting groove, the connecting sleeve is driven to rotate; and the positioning columns are moved into the limiting grooves for limiting, so that the two groups of steel beams can be quickly positioned and butted.

The utility model discloses an angle steel member, which relates to the technical field of building steel structures, and adopts the technical scheme that the angle steel member comprises angle steel bodies, the adjacent angle steel bodies are detachably connected through a connector, and the connector is provided with a groove for one end of each angle steel body to insert. The angle steel body is detachably connected with the connector through a plurality of connecting pieces, and the connecting pieces are distributed on the inner side and the outer side of the connector and penetrate through the angle steel body. Through the structural design of the connector and the connecting piece, the problems that traditional angle steel is complex in installation and low in installation efficiency are solved, and the angle steel is suitable for industrial building scenes.

The invention relates to a longitudinally divisible lattice piece for a lattice boom, comprising two detachably connectable lattice piece parts that can be detached from one another for transport and pushed into one another transversely to the longitudinal direction, wherein each of the lattice piece parts comprises two corner posts extending in the longitudinal direction, which are firmly connected to one another via a plurality of diagonal and vertical bars and together with these define a side surface of the lattice piece, and at least two cross-connecting structures firmly connected to the corner posts, wherein the lattice piece parts can be detachably connected via connection means arranged on the cross-connecting structures.

The invention provides a manufacturing method of a small-spacing three-web box beam, which comprises the following steps of: S1, blanking and processing: cutting by adopting a numerical control flame and plasma cutting technology, blanking at high precision according to a design size, reserving a machining allowance and a groove form, and polishing after cutting; s2, assembling and positioning are conducted, specifically, components are assembled on the jig frame through the upside-down mounting technology, and positioning of a top plate is completed firstly; positioning an inner side web plate and a middle web plate; pre-penetrating positioning of U ribs, longitudinal beams and anchoring partition plates is sequentially completed on the middle web; and finally, positioning of the outer side web is completed. S3, bending position welding forming is conducted, specifically, a side web and a top plate are welded at a bending position; after flaw detection is qualified, middle webs and a top plate are fixed through downward welding; u-shaped ribs and longitudinal beams are welded and fixed in a bending manner; welding a bottom plate, and fixedly connecting the bottom plate with the middle web plate, the anchoring partition plate and the side web plate in a welding manner; finally, the stiffening ribs and the support base plate are welded and anchored; s4, flame cutting process allowance; and S5, sanding and coating are conducted, and manufacturing is completed. High-quality welding manufacturing is achieved, and the method is suitable for popularization.

The utility model discloses an upper beam assembly of a container type movable house. The upper beam assembly comprises an upper corner head and a beam body. A cavity structure is arranged in the upper corner head; a water outlet communicated with the cavity structure is formed in the upper corner head; the upper corner head is provided with at least one butt joint surface; a notch communicated with the cavity structure is formed in the butt joint surface; the beam body is provided with a water collecting groove extending in the length direction of the beam body. The beam body has a butt joint state of being in butt joint with the butt joint surface; in the butt joint state, the water collecting tank is communicated with the notch; the water collecting tank is provided with a bottom wall, a top opening opposite to the bottom wall, a first water retaining side wall formed on the bottom wall and located on the inner side of the bottom wall in the width direction, and a second water retaining side wall formed on the bottom wall and located on the outer side of the bottom wall in the width direction. And the top surface of the first water retaining side wall is higher than the top surface of the second water retaining side wall. Rainwater can be effectively prevented from overflowing to the top face of the container type movable house, the hidden danger of water leakage of the container type movable house is effectively reduced, and practicability is high.

A dual-strut channel includes a web having a first end and an opposing second end, the first end including a first series of spaced-apart, alternating projections and notches to form a first tooth-like edge, and the opposing second end including a second series of spaced-apart, alternating projections and notches to form a second tooth-like edge. A first flange and an opposing second flange each have a plurality of spaced-apart and aligned apertures which respectively receive the first and second series of spaced-apart, alternating projections extending from the respective first and opposing second ends of the central plate to form an H-shaped dual-strut channel. Exposed upper portions of the first and second series of spaced-apart, alternating projections of the first tooth-like edge are pressed until the first and second series of spaced-apart, alternating projections are flattened and press-fitted within the corresponding ones of the first plurality of spaced-apart and aligned apertures.

The application discloses a replaceable connecting node function recoverable steel pipe recycled concrete frame, which comprises two steel pipe recycled concrete columns and a steel beam located between the two steel pipe recycled concrete columns, and the bottom of each side surface of the steel pipe recycled concrete column is connected with an ear plate, and the bottom of each steel pipe recycled concrete column is connected with a foundation slab, and the replaceable connecting node function recoverable steel pipe recycled concrete frame further comprises a plurality of weakened steel plate dampers, each of which is connected with the foundation slab and the ear plate through bolts, a plurality of prestressed tendons are connected between the upper part of each steel pipe recycled concrete column and the end of the steel beam through bolt anchoring, a fishbone block is connected on each prestressed tendon, and an L-shaped connecting plate is further connected between the upper part of each steel pipe recycled concrete column and the end of the steel beam. In an earthquake, the weakened steel plate dampers, the ear plates and the prestressed tendons can all play a role in energy dissipation, and the structure is connected through bolts, so that the frame can be replaced in time when the structure is damaged and fails, thereby effectively reducing the maintenance cost of the frame and prolonging the service life of the frame.

This invention relates to a sealed support profile with a built-in segmented, encapsulated moisture-absorbing medium and its manufacturing process, belonging to the field of composite building material profile production technology. This profile is made from composite fiber raw materials through room-temperature extrusion using a specially customized mold, followed by simultaneous gluing and shaping. The internal hollow cavity contains segmented, independently wrapped rod-shaped moisture-absorbing media made of non-woven fabric, with expansion space reserved during sealing. A microporous membrane combined with end-sealing forms a multi-layered moisture-proof structure. The product is divided into ordinary heat-insulating and fire-resistant heat-insulating types according to the base material formulation; the appearance color is purely decorative. This invention enables integrated continuous production, eliminating the need for secondary opening and filling. Defective products can be crushed and recycled, effectively solving problems such as easy deformation, media expansion damaging the profile, complex processes, and inconvenient functional identification in existing products. It has significant advantages such as stable structure, moisture resistance and durability, energy saving and labor saving, and cost reduction and efficiency improvement.

To prevent a wooden structural material from cracking due to a frame member fitted to the outer peripheral surface of the wooden structural material, to prevent the frame member from shifting out of position relative to the wooden structural material, reliably restrain the outer peripheral surface of the wooden structural material, prevent cracking failure of the wooden structural material, and maintain the joining strength between the wooden structural material and the structural material to be joined, since the frame member is attached to the outer peripheral surface of the wooden structural material with structural screws.SOLUTION: A drift pin DP is arranged perpendicular to the longitudinal direction of a wooden structural material W, a frame member F is fitted onto the outer peripheral surface of the wooden structural material, the frame member is fitted into a position close to an end face WK of the wooden structural material, and the frame member is secured to the outer peripheral surface of the wooden structural material with a structural screw B, which is arranged perpendicular to the axial direction of a drift pin DPN close to the end face of the wooden structural material.SELECTED DRAWING: Figure 1

The utility model discloses an adjustable steel structure connecting mechanism which comprises a positioning connecting disc and a steel structure body installed on the outer side of the positioning connecting disc. A positioning mechanism is arranged in the positioning connecting disc, the positioning mechanism comprises a positioning support, and lifting arc plates are arranged on the upper side and the lower side in the positioning support in a sliding mode; an adjusting mechanism is arranged in the positioning connecting disc, the adjusting mechanism comprises an adjusting rotating shaft, and the adjusting rotating shaft is arranged in the center of the interior of the positioning connecting disc in a fixable mode. According to the adjustable steel structure connecting mechanism, locking installation is conducted on different numbers of steel structure parts through the detachable positioning support in the positioning connecting disc, so that the steel structure parts rotate around the positioning connecting disc to achieve adjustment in the process that the steel structure parts need to be adjusted, and building lap joint requirements under different conditions are met.

The invention discloses a concrete foundation beam made of a composite carbon fiber reinforced material, and belongs to the technical field of civil engineering structures. The beam comprises a concrete body, a plurality of rows of longitudinal load-bearing steel bar groups arranged up and down, a positioning bracket, a transverse constraint steel bar combination, an embedded anchoring connecting piece and an external composite carbon fiber reinforced layer, wherein the transverse constraint steel bar combination is composed of closed main stirrups and Z-shaped additional tie bars; the embedded anchoring connecting piece comprises an end metal anchor plate and radial lateral anchor bars; the external composite carbon fiber reinforced layer is formed by sticking a plurality of layers of unidirectional carbon fiber fabrics which are longitudinally arranged along the beam and impregnated with resin, completely wraps the edges of the bottom, the two sides and the top surface of the beam, and is in bolted connection with the anchor plate through a mechanical pressing sheet at the end part; longitudinal through reserved hole channels are further formed in the beams and used for allowing prestressed tendons or sensor cables to penetrate through. The anti-bending and anti-shearing capacity, ductility, durability and multifunctional adaptability of the structure are improved.

A truss structure, which has a main part comprising a compression chord and webs connecting between the compression chord and a tension chord, the compression chord having a non-linear centreline and being separated from the tension chord by the webs, and the tension chord crossing the centreline of the compression chord at at least one point, wherein, in use, the compression chord is in compression and the tension chord comprises a tension member.

To improve the rigidity of a truss frame to ensure a larger column-free space. [Solution] A truss structure (4, 5) comprising a plurality of truss members made of lightweight steel frame material, and spanning two structures (21, 22 and 23, 24) arranged at a distance from each other. The plurality of truss members include upper chord members (40, 50), lower chord members (41, 51) arranged parallel or approximately parallel to the upper chord members, and web members connecting the upper chord members to the lower chord members. Of the plurality of truss members, at least the upper chord members and lower chord members are made up of pairs of lightweight steel frame material, and the lightweight steel frame material that makes up these upper chord members and lower chord members has a web (W) and upper and lower flanges (F) extending in one direction from the upper and lower ends of the web. The pairs of lightweight steel frame material that make up the upper chord members and lower chord members are arranged with their webs adjacent to each other and joined by connectors (DS).

The present disclosure relates to a method for assembling a truss pillar (16) comprising a plurality of monolithic truss modules (2), each of the truss modules (2) comprises at least three hollow frame elements (4) extending in a first longitudinal direction (L), and stiffening rods(14) integrally connecting the hollow frame elements (4), wherein the hollow frame elements (4), preferably each, have at least one external groove (6) and a receiving space (8) extending in the first longitudinal direction (L); the method comprising the steps: Lining up the truss modules (2) in the first longitudinal direction (L) directly adjacent to one another, with the hollow frame elements (4) of the truss modules (2) aligned to form continuous receiving spaces (8) and the external grooves (6) of each truss module (2) aligned to form at least one continuous groove (6); Inserting of a tube element (34) into each of receiving spaces (8) in the first longitudinal direction (L); Positioning of a first connection device (18) on a first end in the longitudinal direction (L) of the truss pillar (16) and a second connection device (20) on a second end in the longitudinal direction (L) of the truss pillar (16), which is located opposite of the first end in the longitudinal direction (L), whereby openings (27) of truss coupling portions (26) of the first connection device (18) and of the second connection device (20) are positioned in extension with the receiving spaces (8) in such a way that the tube elements (34) are fixed to the truss coupling portions (26) and the truss modules preferably locked in the first longitudinal direction (L); Inserting a banner, preferably a silicone edge graphics, in the continuous groove (6) in the first longitudinal direction (L). The present disclosure further relates to the truss module (2) for said method.

A system and method for mine top support of a structure includes a top support device including a cylindrical cover defining a hollow interior and a plurality of bamboo segments disposed within the hollow interior and extending coaxially with an axis of the cylinder. In addition, the top support device with the cylindrical coating comprises a hollow interior, a plurality of bamboo sections are arranged in the hollow interior and are coaxial with the axis of the cylinder, gaps are formed between adjacent bamboo sections, and filling materials such as polyurethane foam are injected into the gaps to keep the bamboo sections positioned when the top support device bears loads. The support device is configured to be loadable and yieldable in a predetermined manner to control sudden failure of the mine roof.

The invention relates to the field of horizontal warehouse roofs, in particular to a horizontal warehouse roof sliding mechanism which comprises a protection mechanism and a sliding mechanism, the protection mechanism comprises a steel stand column, a cross beam is arranged on the steel stand column, a supporting column is arranged on the cross beam, a top beam is arranged on the supporting column, an oblique beam is arranged on the top beam, and a first groove and a second groove are formed in the oblique beam; channel steel is arranged in the first groove, a cover plate is arranged on the channel steel, the cover plate is in a herringbone shape, a sliding part is arranged on the channel steel, a rolling part is arranged on the cover plate, and a pulling part and a buffering part are arranged on the rolling part; the locking mechanism comprises an insertion block at one end of a cover plate, a butt joint groove and an air cavity are formed in the other end of the cover plate, a clamping part is arranged at the bottom of the cover plate, and a locking part is arranged in the air cavity; the sealing mechanism comprises a strip-shaped block on the cover plate, a first strip-shaped groove is formed in the strip-shaped block, and a sealing part is arranged on the cover plate. And through the arrangement of the protection mechanism, the locking mechanism and the sealing mechanism, the roof on the top of the horizontal warehouse can be conveniently installed.

The utility model relates to a steel folding beam, which relates to the technical field of steel structures and is used for solving the problem that a steel beam has weak points at joints of variable elevation positions in the prior art. The steel folding beam comprises a high-elevation steel beam section, a low-elevation steel beam section, a vertical rib plate assembly, a horizontal stiffening rib plate assembly and a web plate assembly, the high-elevation steel beam section and the low-elevation steel beam section are connected through the vertical rib plate assembly, the web plate assembly is connected with the vertical rib plate assembly, and the horizontal stiffening rib plate assembly is connected with the web plate assembly. The horizontal stiffening rib plate assembly is connected with the vertical rib plate assembly, and the horizontal stiffening rib plate assembly is perpendicular to the vertical rib plate assembly. The structure strength and stability of the transition part between the high-elevation steel beam section and the low-elevation steel beam section can be guaranteed, the construction time can be saved through a prefabrication mode, operation is easy and convenient, and the technology is simple.

To provide a covering structure with high heat resistance for steel beams. [Solution] A steel beam 10 having a pair of flanges 20 and a web 30 that is continuous with the pair of flanges 20 and has an insertion hole 32 through which a pipe 210 is inserted, and the surface 21 of the flange 20, the surface of the web 30 31 The device also comprises a coating layer 50 made of the same material and having heat insulating properties, which continuously covers the inner circumferential surface 33 of the through hole 32, the coating layer 50 having a first coating layer 51 that covers the surface 21 of the flange 20 and the surface 31 of the web 30, and a second coating layer 52 that covers the inner circumferential surface 33 of the through hole 32, the thickness T52 of the second coating layer 52 being smaller than the thickness T51 of the first coating layer 51. The device includes a surface layer 60 that covers only the first coating layer 51 and does not cover the second coating layer 52.