942results about "Columns" patented technology

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.

According to the diffusion type six-degree-of-freedom pose estimation-based steel column bottom plate prizing-free downward insertion method, the performability problem of one-time prizing-free downward insertion of a steel column bottom plate under the condition that a porous array is in a limited space and disturbed is solved, a task window is established under a unified construction coordinate system, and bolt axes and hole centers are collected and registered according to array topology; predictive interference is eliminated through diffusion type six-degree-of-freedom pose estimation with insertion constraint preposed, an allowable insertion pose range tightened along with the height is generated according to clearance and safety margin, and a downward insertion channel and an insertion constraint set are constructed in a communicating mode; tubular model predictive control is established in a feasible region, bounded disturbance of wind disturbance and swing is considered, a nominal trajectory and a segmented speed limit value of a channel center are formed, input shaping swing suppression and online monitoring are implemented, and withdrawing and rapid regeneration control are performed along a channel when necessary; the method is used for installation of simultaneous sleeving of multiple holes in the steel column bottom plate, and has the beneficial effects that the minimum clearance is kept not lower than the safety margin, lateral contact and prying are avoided, and the forbidden area is not touched under the limited space and disturbance.

The invention provides a structure and method for reducing the steel consumption of a single-stand-column photovoltaic support steel column, and belongs to the technical field of photovoltaic support design. The structure comprises a cast-in-place pile, a steel column, an inclined strut, an inclined beam, a purline and a photovoltaic assembly; the steel column comprises a lower stand column and an upper stand column arranged above the lower stand column, and the installation position of the steel column is arranged outside the center of the photovoltaic module in a bias mode and coincides with the vertical projection of at least one row of purlines. Through the offset design, the bending moment of the column bottom is reduced by 20%-50%, the stability of the steel column is improved, and the deformation risk is reduced; after the column bottom bending moment is reduced, the section of the steel column can be optimized and reduced, and the steel consumption is reduced by 20-30%, so that the material cost is reduced; meanwhile, after the column bottom bending moment is reduced, the pile foundation bearing requirement is lowered, the size or depth of the cast-in-place pile can be reduced, the use amount of concrete is reduced, and therefore the construction cost is saved by 15%-25%.

The utility model discloses a corrugated plate self-resetting device suitable for a concrete filled steel tube latticed column, which comprises concrete filled steel tube column limbs, horizontal batten tubes and corrugated plate self-resetting devices, and the horizontal batten tubes and the corrugated plate self-resetting devices are alternately arranged between the two concrete filled steel tube column limbs; the corrugated plate self-resetting device is composed of a lug plate pair, a cover plate pair, a disc spring set, a split bolt set, a polytetrafluoroethylene plate and a viscoelastic plate. Under the action of a horizontal force earthquake, the concrete-filled steel tube column limb laterally moves to drive the lug plates to move up and down, the upper cover plate and the lower cover plate are pushed to be opened in the front-back direction through the meshing action of the corrugated plates on the lug plates and the corrugated plates on the cover plates, the disc spring sets on the split bolts are compressed to generate reset force, the upper cover plate and the lower cover plate are reversely extruded, and the lug plates and the concrete-filled steel tube column limb are pushed to reset. By means of the corrugated plate self-resetting device, earthquake residual deformation of the long and thin steel pipe concrete latticed column can be eliminated, stiffness mutation of a traditional tooth-shaped plate resetting device at the initial position is avoided, and the problem that the long and thin steel pipe concrete latticed column is insufficient in seismic toughness during an earthquake is solved.

The invention discloses a secondary structure constructional column concrete pouring device, and relates to the technical field of constructional column pouring, the secondary structure constructional column concrete pouring device comprises a movable base, the top end of the movable base is provided with a concrete storage tank, one end of the top of the movable base is provided with a vibration compacting mechanism, and the vibration compacting mechanism comprises a rack; according to the device, a formwork of a constructional column is intermittently knocked from the outer side, vibration force is transmitted to concrete poured in the formwork, and the concrete is vibrated, so that the concrete is compactly combined, bubbles in the concrete are eliminated, and the construction quality of the constructional column is improved. And the vibrating operation is carried out on the outer side of the template, so that the operation is more convenient, the vibrating operation is transferred to the outer side, is not limited by the pouring operation space of the constructional column, and is not in direct contact with the concrete, and the situation that part of concrete is adhered or drips after the vibrating is finished, and time is consumed for cleaning is prevented.

To provide a column structure capable of suppressing damage when receiving a horizontal load.SOLUTION: A column structure includes a column body supporting a load in a vertical direction, and a side plate attached to at least a part of a side surface of the column body and divided into two or more divided plates in a vertical direction.SELECTED DRAWING: Figure 1

The application relates to the technical field of shaped steel column, in particular to a shaped steel column structure capable of shock isolation, which comprises a column body assembly, a shock isolation assembly and a connecting assembly; the column body assembly comprises a cross plate and four groups of connecting plates connected to the cross plate, the top of the cross plate is provided with a cross groove, the bottom of the cross plate is provided with a cross mounting groove, the connecting assembly capable of being arranged in the cross groove and the cross mounting groove is arranged in the cross groove, the shock isolation assembly is arranged at the bottom of the cross plate, the shock isolation assembly comprises a protection box and a mounting plate, X-direction sliding buffer pieces and Y-direction sliding buffer pieces are arranged in the protection box; the X-direction sliding buffer pieces and the Y-direction sliding buffer pieces are matched in the application and can move within a certain range, the influence of external vibration on the shaped steel column as a whole is reduced, the influence of passive stress of the building system is reduced, and the adjacent column body assemblies can be stably spliced.

The utility model provides a special-shaped steel pipe column and support combined shear wall, and relates to the technical field of assembly type buildings, the special-shaped steel pipe column and support combined shear wall comprises special-shaped steel pipe columns and framework girders, the framework girders are arranged between two adjacent special-shaped steel pipe columns, the upper ends and the lower ends of the special-shaped steel pipe columns are used for supporting floors, the special-shaped steel pipe columns comprise square columns and a plurality of U-shaped columns, webs used for positioning and abutting against the two ends of the U-shaped column are arranged on the side portions of the square column. According to the special-shaped steel pipe column and support combined shear wall, the square column serves as the central section, the U-shaped columns are welded in the direction perpendicular to the four webs of the square column to form the special-shaped steel pipe concrete columns and the beam columns, space arrangement is flexible, the component finished product is high, the beam columns effectively improve the structural rigidity, and the use area rate of a building is high.

The application discloses a welding method for welding a combined column, which comprises a plurality of column assemblies arranged in sequence in a vertical direction, wherein each column assembly comprises an inner column, an outer column and a rib plate, the outer column has a storage cavity, the inner column is arranged in the storage cavity, and the rib plate is connected to the inner wall of the outer column and the outer wall of the inner column at two ends respectively; the welding method comprises the steps of temporarily fixing two adjacent column assemblies by a connecting plate, welding the inner columns of the two adjacent column assemblies, and then welding the rib plates of the two adjacent column assemblies. The welding method can effectively solve the butt joint problem of the combined column in a construction site, and the welding quality of the combined column is high.

The invention relates to the technical field of building construction, and provides a special-shaped bent and twisted steel column high-altitude in-situ assembly construction method which comprises the following steps: mounting a root steel column on a foundation steel column; first supporting jig frames are installed on the two sides of the root steel column, and the first supporting jig frames are fixed to the root steel column; a branch steel column is installed on each of the two sides above the root steel column, each branch steel column is fixed to the corresponding first supporting jig frame, and the lower surface of the outer wall of the top end of each branch steel column is connected with the top end of the corresponding first supporting jig frame in a matched mode; second supporting jig frames are installed on the outer sides of the first supporting jig frames, and the second supporting jig frames are fixed to the corresponding first supporting jig frames; a bent steel column is correspondingly installed at the top end of each branch steel column, and the top end of each second supporting jig frame is connected with the lower surface of the outer wall of the bent part of the corresponding bent steel column in a matched mode; and the cross beam steel column is mounted between the two bent and twisted steel columns. The problems of structural deformation, stress concentration and the like can be effectively avoided, and construction efficiency and construction safety are guaranteed.

The application provides a large-space variable house type steel structure residence and a design method thereof, and relates to the technical field of steel structure residence design, and specifically comprises mutually connected column bodies and floors, the column body is sequentially provided with a concrete core, a rectangular steel pipe column and a first reinforced concrete cladding layer from inside to outside; the first reinforced concrete cladding layer comprises a steel mesh layer; the floor is sequentially provided with a top reinforced concrete layer, a middle layer and a bottom reinforced concrete layer from top to bottom; the middle layer is uniformly provided with a combined rib beam, a hollow square box and a floor rib beam; the combined rib beam is used for connecting the floor and the column body; a plurality of floor rib beams are vertically arranged to form a grid structure; the grid structure is symmetrically arranged on both sides of the combined rib beam; and the hollow square box is arranged in a grid hole of the grid structure. The scheme can provide a large-space beamless and columnless space, improve the use area in the suite, and be suitable for the dynamic change requirement of a family structure.

The utility model relates to the field of steel structures, in particular to a novel assembly type steel-concrete structure which comprises a steel column and a steel beam, the steel column and the steel beam are both H-shaped steel, first stiffened plates are welded to the two ends of the steel column, a plurality of first main ribs are arranged between the two first stiffened plates in a penetrating mode, and at least one main bracket is arranged between the two first stiffened plates. One end of the flange of the main bracket is embedded between the flanges of the two steel columns, the first main reinforcement penetrates through the flange embedded section of the main bracket, first concrete pouring cavities are formed between the flanges of the main bracket and the stiffened plates, the web of the main bracket extends out of the first concrete pouring cavities, mounting holes are formed in the extending parts of the web of the main bracket, and second stiffened plates are welded to the two ends of the steel beam. A plurality of second main ribs are arranged between the two second stiffened plates in a penetrating mode, a second concrete pouring cavity is formed between the two stiffened plates, and a matching hole is formed in the end of a web of the steel beam, and the main bracket and the steel beam are rigidly connected through a bolt penetrating through the mounting hole and the matching hole.

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 utility model relates to an inserting column end bearing type column base node which comprises a steel pipe concrete column, the steel pipe concrete column is composed of a steel pipe core column, peripheral reinforced concrete, a bottom plate and a bottom wrapping steel plate, the steel pipe core column extends downwards from the bottom face of the peripheral reinforced concrete, and the bottom plate is annularly welded to the periphery of the steel pipe core column on the bottom face of the peripheral reinforced concrete. The bottom wrapping steel plate wraps the periphery of the bottom of the peripheral reinforced concrete, a plurality of first stiffening ribs are welded to each side of the bottom wrapping steel plate and connected with the steel pipe core column in a welded mode, and the bottom plate extends outwards in the radial direction from the bottom wrapping steel plate. And a cup opening is reserved in the column foot foundation, and a plurality of groups of anchor bolts are pre-buried around the cup opening. The end of the concrete filled steel tubular column is supported on the top of the column foot foundation, the structure is simple, the anti-seismic performance is excellent, the quality is reliable, the construction speed is high, and the node construction method is high in cost performance.

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.

The invention relates to the technical field of steel structure engineering construction, in particular to a super-long independent steel column segmented locking type temporary stabilizing device and a construction method thereof, and is suitable for the overall lifting stage of a multi-layer aerial corridor. The device comprises a first locking assembly surrounding a concrete column and providing an X-direction lateral fulcrum; the second locking assembly is fixedly connected to the surface of the steel column to form a force transmission interface; and the connecting conversion assembly connects the steel column and the concrete column into a whole, so that the X-direction load of the steel column is transmitted to the concrete column in sections. The super-long steel columns are temporarily decomposed into short column stress sections with the length not larger than the designed length, and lateral displacement is remarkably restrained. The construction method comprises the steps that the device is installed at the corridor joint, pre-tightening force is synchronously applied, displacement is monitored in real time, overall dismantling is conducted after lifting is completed, and no residue exists after dismantling. The method is not pre-buried and fully recycled, super-long columns are restored to be in a short column stress state, lateral displacement is reduced, steel is saved, the construction period is shortened, green construction and appearance completeness are both considered, and the method is suitable for a large-span corridor overall lifting project.

The utility model relates to the technical field of railway building components, in particular to a tree-shaped beam column structure for a railway station canopy, which comprises a support rod, the upper part of the left end and the upper part of the right end of the support rod are fixedly connected with fixing frames, and the lower end of the support rod is fixedly connected with a fixing plate. A drainage channel is formed in the middle of the upper end of the supporting rod and the middle of the upper end of the fixing plate, and a plurality of fixing holes are formed in the upper end of the fixing plate. According to the tree-shaped beam column structure for the rain shed of the railway station, due to the fact that the two fixing frames are arranged, when the tree-shaped beam column structure is used for installing and using the rain shed, the three supporting plates in the fixing frames can absorb and weaken wind vibration generated by the rain shed, the damping effect can be achieved, and the situation that the rain shed is damaged in the strong wind weather is avoided. The rain shed is damaged due to the wind vibration effect, the drainage channel is formed in the upper end of the device, when the device is used, rainwater falling on the rain shed slides to the upper portion of the supporting rod and flows away through the drainage channel, and it is avoided that the rainwater is retained on the upper portion of the device to cause corrosion of the device.

The present application belongs to the technical field of concrete beam-column structure, and specifically relates to a beam-column structure with locally internally arranged thin-walled steel pipes and a mounting method thereof. By reasonably arranging the internally arranged steel pipes and steel bars, the effects of reducing the self weight and improving the bearing capacity of the structure are achieved. The application of the steel pipes not only enhances the bending and shearing resistance of the concrete components, but also effectively delays the generation and expansion of cracks. In addition, due to the high strength and rigidity of the steel pipes, the structure can still remain stable under high load conditions, and is particularly suitable for occasions requiring high bearing capacity, such as bridges and buildings. A new design method of internally arranged steel pipe concrete is proposed by fully considering the stress characteristics of the beam-column components. Through detailed analysis of the structural details and working principles, professional technicians can implement the present application according to the description, so as to effectively improve the safety and economy of the engineering structure. The present application is used for improving the shearing, bending and overall stability of the structure.

The utility model discloses a two-truss support structure suitable for supporting a large-span clean flue, and relates to the technical field of flue gas purification. The device comprises a flue support arranged at the bottom of a clean flue, the left end of the clean flue is connected with an absorption tower, and the right end of the clean flue is connected with a chimney; the flue bracket comprises a first bracket and a second bracket; the first bracket comprises a first bracket steel column and a second bracket steel column which are arranged at an interval; the second support comprises a third support steel column, a fourth support steel column, a fifth support steel column and a sixth support steel column which are arranged at intervals. In order to overcome the defects of large occupied area, high cost, long construction period and the like due to the adoption of a multi-span concrete or steel structure bracket in the conventional design of a large-span and high-clearance clean flue bracket in a desulfurization system, the utility model provides a two-truss bracket structure for supporting a clean flue of a desulfurization system. The device has the advantages of small occupied area, good economical efficiency and convenience in construction.

The utility model provides a reinforcing steel bar positioning device for a concrete stand column, which belongs to the technical field of reinforcing steel bar positioning and comprises four reinforcing steel bar hoops, the four reinforcing steel bar hoops are arranged in a 4 * 4 rectangle, a connecting piece is arranged between any two adjacent reinforcing steel bar hoops, and a clamping block is fixed on one side, far away from the connecting piece, of each reinforcing steel bar hoop. The device has the beneficial effects that the device is placed at the position where a reinforcement cage needs to be installed, then auxiliary positioning pieces such as a laser positioner and a leveling instrument are connected to the clamping blocks in a clamped mode, the accuracy of the position of the device is guaranteed, a reinforcement is inserted into four reinforcement hoops, the reinforcement is fixed through the reinforcement hoops, and the reinforcement cage can be installed conveniently. And then the device is installed at a certain height again until the steel reinforcement framework is built, after it is determined that the position of the steel reinforcement framework is correct through the auxiliary positioning piece, the auxiliary positioning piece is detached, building of the steel reinforcement framework is completed, concrete pouring can be directly conducted, the positioning device does not need to be detached, and the construction efficiency of the concrete stand column can be effectively improved.

The utility model discloses an exterior wall constructional column structure capable of being quickly installed, which comprises structural floor slabs and an exterior wall, the exterior wall comprises a plurality of parallel exterior wall constructional columns which are positioned between two adjacent layers of structural floor slabs and are arranged along the circumferential direction of the structural floor slabs, and each exterior wall constructional column is of an integrally formed structure. The utility model further discloses a building body using the outer wall constructional column structure capable of being rapidly installed. According to the utility model, line production can be easily realized, simultaneous construction of a plurality of working surfaces is realized, and the device can be widely applied to wall surface construction.

The utility model relates to the technical field of steel column connecting structures, and provides a connecting structure of steel columns. The mounting holes are formed in the surface of the symmetrical position of the mounting piece; the plurality of steel column bodies are movably embedded in the mounting holes; the multiple sets of supporting plates are fixedly installed at the symmetrical positions of the inner wall of the installation part; and a plurality of grooves. The connecting pieces are arranged at one end of the steel column body, the connecting pieces are embedded in the mounting hole, meanwhile, the surface of the steel column body makes contact with the supporting plate in the mounting piece, the supporting force is improved, meanwhile, the connecting pieces make contact in the mounting piece, and meanwhile the L-shaped grooves are formed in the surface of the mounting piece; the L-shaped connecting rod on the surface is embedded into the L-shaped groove through the mounting panel, meanwhile, one end of the L-shaped groove is embedded into the trapezoidal groove, riveting connection of the trapezoidal groove is completed, the supporting force is enhanced, and meanwhile mounting is convenient.

The utility model relates to a connecting structure of a masonry and a wall column. The connecting structure of the masonry and the wall column comprises the masonry and a wall column main body, and further comprises a connecting sleeve which is connected into the masonry in a pouring mode; the tie bars are connected into mortar between the building blocks of the wall column main body in an embedded manner; wherein one axial end of the connecting sleeve and one axial end of the tie bar are respectively provided with an internal thread and an external thread, and the internal thread is matched with the external thread, so that the connecting sleeve is in threaded connection with the tie bar. In the invention, the connecting sleeve is pre-embedded and connected into the masonry in a pouring manner, and the tie bar is embedded into mortar between the building blocks of the wall column main body after being in threaded connection with the connecting sleeve, so that the connection modes of drilling and bar planting on the wall column and retrograde tie are avoided, the main body structure of the wall column is prevented from being damaged, irreversible damage is avoided, and the service life of the wall column is prolonged. Therefore, the problem of potential quality hazards is avoided.

The application relates to an assembled multi-stage yield buckling support, which comprises a constraint member, a primary inner core and a secondary inner core which are embedded in the constraint member, the primary inner core and the secondary inner core are connected and extend outwardly through the constraint member, first end plates are arranged at two ends of the primary inner core, second end plates are arranged at two ends of the secondary inner core, the first end plates are connected with the second end plates through connecting shafts, the first end plates are in close contact with the second end plates at one end of the support, and a gap is reserved between the first end plates and the second end plates at the other end of the support, so that multi-stage yield is realized. The application solves the problem that the multi-stage yield buckling support member is difficult to replace in the prior art, and the whole support needs to be replaced when the structure is repaired after the earthquake, and realizes the reuse of the constraint member and the secondary inner core. In addition, the application has simple structure, low processing difficulty and is convenient to popularize.

The invention discloses a high-durability reinforced concrete structure, and relates to the technical field of reinforced concrete structures. Comprising four grouting steel pipes parallel to one another, the four sets of grouting steel pipes are evenly distributed in the circumferential direction, and a transverse fixing steel plate is connected between every two adjacent grouting steel pipes; binding steel bars are arranged on the inner sides of the four grouting steel pipes, and concrete is poured; sandwich structures are arranged on the outer sides of the four grouting steel pipes and the transverse fixing steel plates. The steel column filled with concrete outside the reinforced concrete structural member is combined with traditional reinforced concrete with bundled reinforcing steel bars embedded inside, the reinforced concrete structural member is structurally combined, so that the reinforced concrete structural member has the advantages of being good in anti-seismic performance, high in durability, excellent in fire resistance and the like, in addition, by arranging the anti-corrosion layer, the corrosion resistance of the metal member is improved, and the service life of the metal member is prolonged. Meanwhile, under the structural design, the anti-corrosion layer isolates corrosion permeation, the strength of the steel bars and the profile steel components is effectively guaranteed for a long time, damage is avoided, and it is better guaranteed that the reinforced concrete structure has the high durability characteristic.

The invention relates to the technical field of building construction, and provides an existing building column structure reinforcing construction method which comprises the steps that a rough surface is manufactured on a concrete bonding surface of an original concrete column structure layer; positioning and determining a steel bar planting hole site on the original concrete column structure, drilling, and then cleaning and checking the hole; chemical steel bar planting glue is poured into the holes, and the chemical steel bar planting glue comprises vertical steel bar planting and horizontal steel bar planting; binding and fixing the main reinforcements subjected to vertical bar planting through stirrups; a formwork is reinforced after main reinforcements are bound and fixed, then a hole is formed in a building floor on the top of an original concrete column structure, back-jacking is conducted on the bottom of the holed part of the building floor through a supporting structure, concrete is poured to increase the size of the original concrete column structure after back-jacking is completed, then formwork removal and maintenance are conducted, and reinforcement of the original concrete column structure is completed. The technical problems that cooperative work efficiency of new and old materials is insufficient, a weak layer is easily formed at the junction, reinforcement construction is uncontrollable and the like can be solved, and on-site construction safety and construction quality can be guaranteed.

The utility model provides a bamboo fiber pipe concrete column, and relates to the technical field of concrete. Comprising a column shell body, a cage-shaped structure is arranged in the column shell body, the column shell body is filled with concrete, the cage-shaped structure is filled with the concrete and wrapped with the concrete, a protective layer is arranged on the periphery of the column shell body, the cage-shaped structure is formed by weaving steel bars and bamboo bars in a staggered mode, bamboo fibers are arranged in the concrete, and the protective layer is arranged on the periphery of the column shell body. And the protective layer is connected with the outer surface of the column shell through an adhesive. According to the bamboo fiber reinforced concrete column, the tensile property, the compression resistance and the durability of the concrete column are remarkably improved by arranging a composite reinforcing structure of the bamboo reinforcement-steel reinforcement cage, the bamboo fiber concrete and the multiple bamboo fiber protective layers.

This utility model relates to the technical field of heavy-duty steel structure box-type columns, specifically a deformation-resistant heavy-duty steel structure box-type column. It includes a box-type column body, with a stiffening partition inside. A mesh rib is integrally formed on the outer side of the stiffening partition, and a wear-resistant cover is welded to the outer side of the stiffening partition. Bolts are installed through the box-type column body, and anti-slip pads are fitted at the connection points between the bolts and the box-type column body. A cable conduit is welded through the middle of the stiffening partition. By using bolts and anti-slip pads to fix the stiffening partition inside the box-type column body, deformation of the box-type column body can be effectively reduced. Fixing the stiffening partition with bolts effectively reduces welding, thereby reducing thermal deformation caused by welding.

The invention discloses a reinforcing steel bar positioning structure and method for a special-shaped supporting column, and relates to the related field of reinforcing steel bar positioning, the reinforcing steel bar positioning structure comprises a reinforcing steel bar positioning main body, the reinforcing steel bar positioning main body is formed by combining four groups of positioning corner frames arranged at the upper end and the lower end of the reinforcing steel bar positioning main body, and positioning frames are mounted on the inner sides of the positioning corner frames; electric push rods are installed on the inner sides of one set of fixing blocks, and the outer sides of the fixing plates are welded to the inner sides of the positioning corner frames. According to the reinforcing steel bar positioning structure and method for the special-shaped supporting column, the peripheral size of the reinforcing steel bar is accurately matched through the adjusting mechanism and the scale bar; the attaching rollers of the positioning frame are matched with the detachable embedded plate and the clamping mechanism, so that the device is prevented from interfering with the positioning hoop, and the steel bars are prevented from deviating; meanwhile, the distance can be visually checked through the scale strips, reinforcing steel bar binding is assisted, the problems of errors of traditional manual marking and difficulty in collinear of positioning points are thoroughly avoided, and the special-shaped column reinforcing steel bar positioning precision and construction quality are remarkably improved.