4261results about "Pillars" patented technology

The present invention relates to the technical field of fabricated buildings. Disclosed is a fabricated steel structure residence system. The fabricated steel structure residence system of the present invention comprises a frame portion and a shear wall portion, wherein the frame portion comprises a special-shaped column, a steel beam and a floor system; and the special-shaped column comprises a steel pipe and a plurality of T-shaped steels arranged along a peripheral wall of the steel pipe. A combined T-O section form of the special-shaped column provided by the present invention can realize relative separation of a pressure from bending on a combined section, such that the fabricated steel structure residence system has good bending bearing capacity and rigidity. The characteristic of an outer T-shaped steel is used such that a full-bolt connection form can be used between the steel beam and the special-shaped column. Moreover, a reinforcement member is provided at a beam-column joint, such that the rigidity and strength of the joint region are improved. In addition, specific structures of a floor system and a shear wall are further optimized, and a corresponding joint connection method is provided, such that the fabricated steel structure residence system that can be quickly assembled and is stable in terms of connection is formed.

Provided in the present invention are a prefabricated room module, a building and a construction method. The prefabricated room module comprises a shear wall body and a top plate body, wherein the shear wall body has a wall cavity configured for cast-in-place concrete, and a shear wall is formed after concrete is cast in the wall cavity; the top plate body has a casting area for cast-in-place concrete, and a top plate is formed after concrete is cast in the casting area; and the shear wall body is fixedly connected to the top plate body. According to the prefabricated room module, the building and the construction method provided by the embodiments of the present invention, prefabricated portions of a shear wall and a top plate are extracted in a modular manner and are assembled in a factory, thereby forming a standard module self-stressed system; thus, only hoisting and concrete casting works on the module are required at a construction site, and the hoisting of all or most of the small components, the erection operations of scaffolds and construction supports, and a large amount of welding and bolting operations can be avoided.

The utility model relates to a vertical connection node structure of a partially coated steel-concrete combination column, which is characterized in that a horizontal partition plate is preset at the bottom of an upper column, the horizontal partition plate is welded with the column in a factory, an upper column web plate can be reserved or cut off in a connection area, and a longitudinal steel bar and a vertical stiffening plate are welded on two sides of the horizontal partition plate of the upper column; it is guaranteed that the centers of the vertical stiffening plates and the centers of the longitudinal steel bars are aligned or deviated within a controllable range; when the upper column and the lower column are spliced on the construction site, only the flanges of the upper column and the lower column need to be welded in a butt joint mode, and the vertical stiffening plate of the upper column and the top partition plate of the lower column are welded. The thickness of the horizontal partition plate and the thickness of the vertical stiffening plate are designed and calculated, the reliability of force transmission of the horizontal partition plate and the thickness of the vertical stiffening plate are verified, and two connecting structures of a grouting-free joint and a grouting formwork-free joint can be achieved. Compared with the prior art, on-site construction procedures can be reduced, and construction efficiency can be improved.

The utility model discloses an FRP (fiber reinforced plastic) bar-steel bar mixed reinforced concrete column with high corrosion resistance and shock resistance toughness, which comprises a concrete layer, an FRP bar framework and a steel bar framework, the FRP bar framework is positioned on one side close to the surface of the concrete layer, the steel bar framework is positioned on the inner side of the FRP bar framework, and the steel bar framework is formed by a plurality of steel longitudinal bars and a plurality of steel stirrups. The FRP bar framework is formed by a plurality of FRP longitudinal bars and a plurality of FRP stirrup belts. According to the concrete column, the corrosion-resistant FRP longitudinal bars and the FRP stirrup belts are arranged on the outer side, the steel bars prone to corrosion are arranged on the inner side, linear elasticity and corrosion resistance of FRP materials and the excellent energy dissipation capacity of the steel bars are fully utilized, and the concrete column with the FRP bars and the steel bars in mixed reinforcement and good in corrosion resistance and seismic toughness is formed; and moreover, the used FRP ribs can provide stable secondary rigidity after the steel bars are yielded, so that residual deformation of the column after unloading is reduced, and rapid repair of the concrete column after an earthquake is facilitated.

The utility model discloses a heat-preservation and energy-saving building column foundation heat-preservation joint which comprises an embedded part, a steel column and a high-strength heat-preservation cushion block. The embedded part comprises a positioning plate and a column foot anchor bolt and is embedded in the positioning plate when a reinforced concrete structural plate is poured, a higher part of the column foot anchor bolt is exposed according to the elevation of a steel column foot bottom plate, a high-strength heat preservation cushion block is arranged on the upper portion of the positioning plate, a hole is reserved in the position, corresponding to the column foot anchor bolt, of the high-strength heat preservation cushion block, and the column foot anchor bolt penetrates through the hole. A steel column base bottom plate penetrates through a column base anchor bolt to fall on the high-strength heat preservation cushion block and is firmly connected with the column base anchor bolt through a nut, a steel cover plate is arranged on the periphery of the steel column, the steel cover plate and the ground surface layer are located on the same horizontal plane, and the space between the steel cover plate and the steel column base bottom plate is filled with foaming polyurethane. On the premise that the structure bearing requirement is met, cold (heat) breaking is conducted on the column foundation part, a heat preservation surface layer does not need to be additionally adopted to wrap a building inner structure column (steel column), the size of the built building inner structure column is appropriate, and building space does not need to be additionally occupied.

The invention discloses a steel structure petal column bottom support and a mounting method, the device is formed by irregularly arranging a plurality of groups of supports in a ring shape, and each group of supports comprises two single supports; each single support comprises a bottom disc, a middle disc, a top sealing plate, a main body circular pipe, an inclined steel column and a pouring plate; the bottom disc is arranged at the bottom of the body circular pipe, the middle disc is arranged in the middle of the body circular pipe, the top sealing plate is arranged at the top of the body circular pipe and supports the inclined steel column, the pouring plate is arranged beside the top sealing plate, and the method is achieved based on the device. According to the method, the quality safety problems of deformation, collapse and the like of the petal-shaped whole body due to the fact that the support is unstable or the design is not in place under the action of the gravity of a steel structure are solved; the stability, the safety and the reliability of the spirally rising steel structure column are ensured; and the device is prevented from being corroded.

The invention discloses a steel roof steel structure with anti-seismic continuous fusiform blades and a construction method of the steel roof steel structure. Comprising a first row of stand columns, a second row of stand columns, a third row of stand columns, a first row of cross beams, a second row of cross beams, a third row of cross beams, evenly-distributed forked columns, eccentric forked columns, a first row of continuous fusiform steel net frames, a second row of continuous fusiform steel net frames, a finger corridor connecting net frame and a cantilever canopy net frame. The steel roof in the shape of the two rows of continuous fusiform blades and the highest slope tip formed at the highest position of the second row of fusiform blades are novel and unique, have more sense of space, layering sense and rhythm sense, are more dynamic, can be integrally similar to the shape of a lotus treasure, and have the artistic conception of golden top Buddha light, mountain chain cloud sea and three-river confluence; a unique and novel steel reinforced concrete column and steel tube concrete column combined mode is adopted for supporting, the construction quality can be improved under the condition of large-span hoisting, and the construction difficulty is reduced.

An outdoor louvered tent includes a louvered tent roof and a louvered tent frame for mounting the louvered tent roof. The louvered tent frame includes stand columns and a ring beam, the louvered tent roof includes several louver plates, linkage strips for linkage cooperation with several louver plates, and an overturning driving device for driving the linkage strips to move. The overturning driving device includes a linkage assembly and a driving assembly, and the driving assembly includes a control member and a mounting seat. The driving assembly is mounted on any stand column, and a stroke cavity groove for the control member to move up and down is provided in the mounting seat.

A frame truss made of two walls and a roof structure. Each of the two walls have an outer and inner chord. The outer and inner chords of each respective wall are not parallel, but the inner chords of the two walls are parallel to each other. The arrangement of the inner and outer chords of each wall creates an exterior overhang with respect to the ground. Each of the walls converge at their bases and are attached at their bases to a plate. The roof structure attaches to the top of each of the walls and spans between them creating a frame that can be assembled in conjunction with similar frames to construct a building system.

The reinforcing structure comprises formworks defining a column body pouring space, profile steel is arranged in the formworks, the reinforcing structure further comprises a plurality of bases surrounding the outer sides of the formworks, baffles are supported on the inner sides of the bases, the baffles are arranged at the gap between the upper formwork and the lower formwork in a blocking mode, the bases are connected with pulling and connecting assemblies, and the pulling and connecting assemblies are arranged on the outer sides of the bases. The tie assembly penetrates through the baffle and a gap between the upper formwork and the lower formwork to be connected with the profile steel, and every two adjacent bases are connected through a connecting assembly. The construction method has the beneficial effects that the internal profile steel is used as an anchoring point, the baffle is tied on the outer side of the formwork, slurry plugging at the position can be achieved, the formwork at the position can be reinforced, and follow-up construction deformation is avoided; the size of the tie and the size of the connecting assembly can be flexibly adjusted, so that the whole structure can meet construction requirements of columns of different shapes and specifications, and the application scene is expanded; the formwork is additionally reinforced through the cross beams which are supported mutually and internally, the overall stability of the formwork is further improved, and the formwork is flexible, adjustable and convenient to turn over.

Provided in the present invention are a prefabricated shear wall and a building room module including same. The prefabricated shear wall comprises a lightweight formwork assembly, a steel skeleton and embedded columns, wherein the steel skeleton comprises a plurality of horizontal connecting members arranged in parallel in the direction of the height of the prefabricated shear wall and a plurality of vertical reinforcing bars penetrating the horizontal connecting members, the horizontal connecting members being configured to provide the stiffness for the building room module when the prefabricated shear wall serves as a wall structure of the building room module. For the prefabricated shear wall and the building room module including same provided in the embodiments of the present invention, using the lightweight formwork assembly can greatly reduce the amount of steel used and the weight of the shear wall, thereby avoiding corrosion prevention and electron shielding problems. Moreover, because the horizontal connecting members and the vertical reinforcing bars are used in the steel skeleton, the problem of a traditional reinforcement cage skeleton structure being difficult to connect to a lightweight formwork assembly and embedded columns is solved; and when the prefabricated shear wall serves as a prefabricated part of a wall structure of the building room module, the horizontal connecting members can provide enough stiffness for the building room module after concrete pouring.

A fabricated reinforced concrete prefabricated column connecting structure comprises a lower-layer prefabricated column upper section, an upper-layer prefabricated column lower section, cushion blocks, spiral positioning devices, stirrups, formworks, supporting fixing pieces and post-cast high-strength concrete. The lower-layer prefabricated column upper section, the upper-layer prefabricated column lower section, the cushion blocks, the spiral positioning devices, the stirrups, the supporting fixing pieces and the like are solidified together through post-pouring high-strength concrete to form the assembly type reinforced concrete prefabricated column connecting structure. According to the elevation of the upper section of the lower-layer prefabricated column and the post-pouring compaction requirement, the thickness of the cushion block is selected to control the elevation of the bottom of the upper-layer prefabricated column, horizontal positioning of the bottom of the upper-layer prefabricated column is accurately controlled through holes formed in the spiral positioning device of the pre-embedded steel rib support and the spiral positioning device pre-installed on the internal thread, and the construction precision is improved; high-strength concrete is adopted for post-pouring, the high-strength concrete fault-tolerant connecting technology is adopted for reinforcing steel bars, the lap joint and anchoring length is reduced, the construction difficulty is lowered, the engineering quality is guaranteed, and the construction progress is accelerated.

The utility model belongs to the technical field of building construction, and particularly discloses an assembly type prefabricated column and cast-in-place column connection reinforcing structure which comprises a formwork and a connecting piece used for connecting a cast-in-place column and a prefabricated column, the formwork defines a space used for pouring the cast-in-place column, the bottom of the formwork extends to the upper portion of the prefabricated column, and the connecting piece is used for connecting the prefabricated column and the cast-in-place column. The upper portion and the lower portion of the connecting piece surround the lower portion and the upper portion of the cast-in-place column and the lower portion and the upper portion of the prefabricated column respectively, the outer side of the connecting piece is sleeved with a buckling piece, and the buckling piece can fasten the connecting piece. The problem that the perpendicularity of the whole column is affected by deformation of the joint of the prefabricated column and the cast-in-place column of the assembly type concrete structure can be solved.

The utility model discloses an assembly type steel column butt joint auxiliary connecting piece which is used for assisting hoisting alignment of a lower steel column and an upper steel column and comprises a connecting piece body, an upper steel column and a lower steel column, and the connecting piece body is an L-shaped steel plate attached to the inner wall of the lower steel column and the inner wall of the upper steel column; connecting bolt holes are formed in the lower steel column and the upper steel column; and the connecting piece comprises a guide section and a connecting section which are distributed up and down. According to the utility model, the connecting section of the connecting piece can be arranged in the lower steel column, the connecting bolt hole corresponds to the locking bolt hole, the connecting bolt hole and the locking bolt hole are fixed through the fixing bolt, then the upper steel column is transported to the position above the lower steel column through hoisting equipment, then the upper steel column is descended, and the upper steel column is connected with the guide section of the connecting piece; the guide section is used for guiding the hoisting alignment process and assisting rapid connection of the upper steel column and the lower steel column, then the connecting piece and the upper steel column are connected through the fixing bolt, the purpose of rapidly completing hoisting butt joint of the upper steel column and the lower steel column is achieved, and construction is rapid and convenient.

The invention relates to the technical field of building construction, in particular to a tubular column foot pre-embedding positioning method and device. The method comprises the steps of obtaining a steel structure construction drawing; constructing a tubular column and embedded foundation bolt construction model according to a steel structure construction drawing; according to the construction model, a positioning relation between the embedded foundation bolts and the vertical main reinforcements is established; construction model collision analysis and a three-dimensional simulation experiment are carried out based on the positioning relation of the embedded foundation bolts and the concrete main reinforcements; and processing and mounting the steel structure device based on the construction model. By optimizing construction nodes, the engineering quality is improved, the problem that the embedded steel plate cannot be reused is solved, the vertical column rib and foundation bolt embedded steel plate grinding tool is controlled to freely stretch out and draw back to control the position of the reinforcing steel bar, the effect of reusing different column diameters is achieved, the construction efficiency is improved, the progress is accelerated, and the construction cost is reduced. And the method has good economic and social benefits.

Crown beam (100a, 100b, 100c, 100d) for a roof construction comprising a crown beam profile (10) and a gutter profile (110a, 110a'), for instance a gutter profile for collecting precipitation or a gutter profile for receiving conduits, wherein the crown beam profile (10) has an upper wall (11), a front wall (12) against which rafter profiles are for instance fixable, a rear wall (13) and a lower wall (14), wherein the crown beam profile (10) is provided with an elongate cavity (16) in which a screen roller (200) or a carrier profile (300) is receivable, wherein the lower wall is configured to be coupled to the gutter profile (110a, 110a'), wherein the gutter profile can be fixed pivotally to the lower wall and an intermediate profile (120) can be mounted removably between a bottom (114) of the gutter profile and the lower wall of the crown beam profile.

The invention discloses a circular wooden column-hole-hidden graphite hardwood-graphite layer-along-column foundation stone seismic isolation system which is mainly used for seismic isolation and self-resetting of the bottom of a wooden structure circular wooden column. The shock insulation system is composed of a round wooden column, hole-hidden graphite hardwood, concave spherical surface belt limiting edge column foundation stone, a graphite layer and an annular tempered glass sealing plate. The hole-hidden graphite hardwood is composed of a convex spherical section, a thick cylindrical section, a graphite-hidden hole and a thin cylindrical connecting key which are integrally processed, and the thin cylindrical connecting key is inserted into the round hole in the bottom of the round wooden column to achieve positioning butt joint. The graphite layer can reduce the friction force between the convex spherical surface of the hole-hidden graphite hardwood and the concave spherical surface of the column foundation stone. The concave spherical surface of the column foundation stone enables the round wooden column to reset automatically after an earthquake, and the limiting edge of the column foundation stone can limit excessive displacement of the bottom of the round wooden column in the vibration process. And the annular toughened glass sealing plate can be sealed and waterproof. The seismic isolation system has the advantages of reducing the seismic action of an upper structure through bottom seismic isolation of the circular wooden columns and achieving structural toughness seismic resistance through self-resetting after an earthquake.

To provide a fireproof structure having high workability and a method for constructing the fireproof structure.SOLUTION: A fireproof structure 30 has a steel material 31, an air layer 32 surrounding the steel material 31, a woody fireproof covering material 33 surrounding the air layer 32, and a connecting material 34 connecting the steel material 31 and the woody fireproof covering material 33 in the air layer 32. The woody fireproof covering material 33 is formed of a plurality of wood plate parts arranged to surround the steel material 31 and joined to each other. The connecting material 34 has a steel material-side connecting part 55 fixed to the steel material 31 and a woody fireproof covering material-side connecting part 60 fixed to the woody fireproof covering material 33. In the connecting material 34, the steel material-side connecting part 55 and the woody fireproof covering material-side connecting part 60 are engaged.SELECTED DRAWING: Figure 1

The utility model discloses a steel column mounting and fixing tool, and relates to the technical field of building construction. The device comprises a supporting power assembly, the supporting power assembly comprises a base, a positioning groove is formed in the top of the base, and a stabilizing assembly is fixedly matched with the outer top of the base. The stabilizing assembly comprises arc-shaped supporting plates symmetrically and fixedly connected to the outer top of the base, and sliding plates are slidably connected to the peripheral side faces of the arc-shaped supporting plates in a penetrating mode. The steel column is synchronously fixed through the two first clamping plates and the two second clamping plates, and the two sections of the outer wall of the steel column are fixed, so that the stability of the fixed steel column is better, the traditional mode of fixing the steel column through multiple bolts is avoided, the operation amount is reduced, and the working efficiency is effectively improved.

The utility model discloses a building structure with a positioning mechanism, and particularly relates to the technical field of building structures, the building structure comprises a supporting column, a transverse plate is arranged at the top of the supporting column, and a connecting sleeve is arranged at the bottom of the transverse plate and the outer side of the supporting column in a sleeved mode. A twisting handle is twisted to drive a first screw rod to rotate, the first screw rod drives a sliding block to push a connecting rod to drive an inserting block to move downwards relative to the outer side and push a baffle on the outer side of the connecting shell to drive a fixing rod to be inserted into an inserting hole, connection between the supporting column and the transverse plate is achieved, operation is convenient, the assembling efficiency is higher, and practicability is higher; and through the limiting assembly, the second screw rod can be driven to rotate synchronously in a transmission mode, the two extrusion blocks are synchronously driven to move towards the opposite inner sides synchronously to push the insertion rods to move upwards to be inserted into the insertion grooves to fix the inclined struts, and the supporting columns, the transverse plate and the inclined struts are connected more firmly.

The invention relates to the field of steel member engineering, in particular to a prestressed concrete combined double-chamber box-section bent steel member and a manufacturing method thereof, and the manufacturing method comprises the following steps: S1, welding an inner box chamber and forming an assembly hole; s2, first bolts and second bolts are inserted into the assembly holes; s3, first bolts and second bolts are initially screwed to apply inward prestress to the two webs and the two flange plates, and the side wall of the inner box chamber is made to generate inward concave elastic pre-deformation; s4, welding the outer box chamber and the reinforcing plate; s5, an expansion material is injected into a cavity of the inner box chamber; s6, the expansion material expands to enable deformation of a web plate and a flange plate of the inner box chamber to be reset to the design form; and S7, finally screwing the bolt and stabilizing the pressure. The circumferential confining pressure state of the expansion material is achieved through the prestress bolt system, the compressive strength of the expansion material is multiplied, and therefore the axial compression buckling ultimate load, the compressive bearing capacity and the stability of the bending component are greatly improved.

The utility model provides a leading-in device of an assembly type steel column foundation, which relates to the technical field of buildings and comprises a steel column mechanism, and a foundation mechanism is arranged below the steel column mechanism. In the utility model, when the steel column mechanism and the foundation mechanism are assembled and butted, along with the slow descending of the positioning plate, the guide head with the thinner bottom end can be easily inserted into the guide groove at the top of the concrete foundation, and the gradually thickened part can be gradually contacted with the inner wall of the guide groove, so that certain guide and self-adjustment effects are provided for the guide column; even if slight deviation exists during initial insertion, the thicker part is limited and guided by the groove wall of the guide groove along with the increase of the insertion depth of the guide head, so that the deviation is automatically corrected, and the square guide column can be smoothly inserted into the guide groove in the top of the concrete foundation; at the moment, the mounting holes in the surface of the positioning plate are just penetrated by corresponding steel bars, excessive adjustment is not needed, operation is convenient, and the assembling efficiency is effectively improved.

The invention relates to an assembly type steel structure beam-column joint with replaceable arc-shaped energy dissipation plates. The assembly type steel structure beam-column joint mainly comprises an H-shaped steel column, an H-shaped steel beam, a plurality of sets of arc-shaped energy dissipation plates and a plurality of connecting pieces. According to the technical scheme, the H-shaped steel column is connected with the upper flange and the lower flange of the H-shaped steel beam through the T-shaped piece and the energy consumption device composed of the multiple sets of arc-shaped energy consumption plates so as to bear the bending moment effect; the H-shaped steel column is connected with a web of the H-shaped steel beam through a T-shaped piece so as to bear vertical shearing force. Under the action of an earthquake, the beam component can rotate around the end part of the upper flange, so that the damage to a floor slab is effectively reduced; and the post-earthquake damage of the joint is concentrated on the arc-shaped energy consumption plate which is easy to detect and replace, and the main body beam column component is not damaged, so that the post-earthquake recovery capability of the joint is greatly improved. In addition, the geometric configuration of the arc-shaped energy consumption plate can be flexibly adjusted, so that the mechanical parameters of the joint have high adjustability.

The utility model discloses a steel column connecting structure which comprises a vertical steel column, a buffer assembly and a connecting assembly, the buffer assembly comprises a fixing ring, a buffer, a supporting spring and hinge seats, the outer side of the vertical steel column is connected with the fixing ring in a sliding mode, the fixing ring is fixedly provided with a plurality of sets of hinge seats, and the connecting assembly is connected with the buffer. The buffer is hinged to the lower end of the hinge seat, two sets of supporting springs are clamped to the inner side of the buffer, the connecting assembly comprises a connecting block, a limiting groove, a first fixing plate and a second fixing plate, and the connecting block is arranged at the upper end of the vertical steel column in a penetrating mode; and three sets of limiting grooves are formed in the outer side of the connecting block in a penetrating mode, four sets of first fixing plates are symmetrically arranged on the left side and the right side of each limiting groove, and the lower end face of the connecting block is connected with a second fixing plate through bolts. The connecting strength between the cross beam and the vertical steel column can be enhanced, so that the bearing capacity of the cross beam is improved, and collapse caused by overload of the cross beam is avoided.

The utility model discloses a garden landscape pavilion, which relates to the technical field of gardens, and comprises a pavilion seat, the upper surface of the pavilion seat is fixedly connected with four pavilion columns, a pavilion top, a protection mechanism and two seat plates are arranged above the pavilion seat, the pavilion top and the seat plates are fixedly connected with the pavilion columns, the protection mechanism comprises two servo motors fixedly connected with the pavilion columns, and the servo motors are fixedly connected with the pavilion columns. The output shaft ends of the two servo motors are fixedly connected with protection assemblies rotationally connected with the pavilion columns. According to the landscape pavilion, the pavilion base, the pavilion columns, the pavilion top and the protection mechanism are arranged in a matched mode, when tourists play in a garden and encounter rainy days, rainwater can be shielded through the extensible protection assembly, the rainwater is prevented from floating into the landscape pavilion, and therefore the tourists leaning on the pavilion columns in the landscape pavilion are prevented from being affected; and meanwhile, the protection assembly can be limited, the possibility that the protection assembly is blown and shaken is reduced, and therefore the rain and wind shielding effect of the garden landscape pavilion is guaranteed, and the playing comfort of tourists is improved.

The invention relates to a prefabricated steel concrete beam, a prefabricated steel concrete combined beam column and a production method thereof, the prefabricated steel concrete beam comprises a prefabricated U-shaped beam frame body, a U-shaped groove formed by a bottom steel plate and webs on two sides, a beam shell with a cavity formed in the middle and a pouring opening formed in the upper part, and at least one connecting part is arranged between the webs on the two sides; the upper reinforcing profile steel is arranged on the upper end face of the side web and at least covers the upper end face and the outer side face of the side web; the lower reinforced profile steel is arranged on the lower end face of the side web and at least covers the lower end face and the inner side face of the side web; the reinforced connecting section steel is arranged at the upper part of the pouring opening of the beam shell at intervals and is welded between the upper reinforced section steel; the beam end connecting steel plate is arranged on the bottom steel plate, the bottom of the connecting plate is connected with the bottom steel plate, the connecting plate is perpendicular to the bottom steel plate, and the beam end connecting steel plate partially extends out of the outer end of the bottom steel plate, partially extends into the bottom steel plate and is used for being connected with external beams and columns. The device can be assembled and transported on a production line, and is reliable in quality, high in efficiency and low in cost.

The invention relates to a reinforcement construction method for a reinforced concrete column by adopting an FRP material, and belongs to the technical field of construction of water supply and drainage engineering in the fields of civil construction, bridge engineering, ancient buildings and water conservancy projects. When a reinforced concrete column is reinforced by adopting an FRP sleeve method, at present, FRP cloth is wound and pasted in multiple layers, or the FRP cloth is spliced, and clamps and the like are used as connecting devices at vertical joints. After a long time, the adhesive loses efficacy along with the aging of the adhesive, and then the adhesive falls off; the connecting device of the FRP sleeve transforms the linear load along the seam in the FRP sleeve into a plurality of concentrated loads, and the connecting device can also be corroded to lose efficacy. A self-made FRP strip is adopted, an FRP woven mesh is woven on site and coated with a matrix medium to form an FRP sleeve, and ultra-high performance concrete is poured on the inner side of the sleeve. The FRP sleeve manufactured according to the scheme is integrated, higher bearing capacity can be provided, workers with special skills are not needed, and cost is saved.

The invention relates to the field of buildings, in particular to an externally-reinforced concrete-filled steel tube column and a peak bearing capacity calculation method, and the externally-reinforced concrete-filled steel tube column comprises a steel tube and core concrete located in the steel tube; a UHPC layer is poured on the outer ring of the steel pipe, the section of the outer ring of the UHPC layer is square, and the center line of the UHPC layer coincides with the axis of the steel pipe. Stirrups located on the outer ring of the steel pipe are embedded in the UHPC layer, and longitudinal steel bars are arranged on the inner ring of the stirrups in the vertical direction. The invention provides an external reinforcement type concrete filled steel tubular column. The method can reinforce the concrete filled steel tube with the annular void area, so that the actual bearing capacity of the concrete filled steel tube exceeds the original design value level. The invention further provides a method for calculating the peak bearing capacity of the externally-reinforced concrete-filled steel tube column, the peak bearing capacity of the reinforced concrete-filled steel tube can be quantitatively evaluated, and a theoretical basis is provided for subsequent use and maintenance of the concrete-filled steel tube.

The utility model discloses a BIM-based assembly prefabricated structure positioning processing device, which relates to the technical field of assembled building construction. The utility model includes: a counterweight chassis, a positioning support assembly, a low-position support member, a lifting and rotating member, a marking positioning member, a positioning plate and other structural components. The utility model uses the positioning plate to initialize the insertion and positioning of the protruding steel bars of the column crane base whose position has been fixed, and then lifts the lifting and rotating member and the positioning plate to perform "high-position" insertion and coordination with the assembled column crane above. At the same time, the marking positioning member is used to perform position positioning coordination with the assembled column crane, and the column crane alignment mark is marked. When the assembled column crane descends and approaches the column crane base, the positioning plate is separated by a secondary rotation, and the pre-adjusted marking positioning member is used to perform real-time dynamic coordination with the column crane alignment mark on the side of the assembled column crane, thereby safely and accurately completing the assembly of the assembled column crane and the column crane base.