1404 results about "Beam column" patented technology

The invention discloses an assembly type prestressed self-resetting frame beam column replaceable energy dissipation joint which comprises a joint core area connecting device, a short steel beam connecting piece, an RC frame beam connecting piece, a replaceable energy dissipation device, a self-resetting device, a pin shaft and a friction base plate. The joint core area connecting device comprises a partition plate, a hoop and a short steel beam. The short steel beam connecting piece comprises a fixing plate, an anchoring plate and an outer friction lug plate; the RC frame beam connecting piece comprises an inner friction lug plate, an RC frame beam connecting end plate and embedded H-shaped steel; the hoop is connected with the fixing plate through the short steel beam, and the outer friction lug plate, the inner friction lug plate and the friction base plate are connected to form a friction energy dissipation device. The pin shaft is in running fit with the friction energy consumption device; the anchoring plate and the RC frame beam connecting end plate are connected through a replaceable energy consumption device; the RC frame beam connecting end plates are connected with the beam longitudinal bars. Two energy consumption devices are ingeniously designed, and the defect that the energy consumption level of the structure can only be in the low level after a single-form energy consumption component loses efficacy is overcome.

The invention relates to the technical field of reinforcement cage automatic machining, in particular to a rectangular beam column reinforcement cage automatic machining method which comprises the following steps that S1, longitudinal bars and stirrups are blanked and machined; s2, the stirrups are sequentially placed above a clamp system through a material placing robot; s3, conveying the single longitudinal bars to a synchronous conveying device through a single longitudinal bar conveying device; s4, the clamp system is conveyed to a transverse moving mechanism; s5, the pushing trolley, close to the assembling and welding device, of the synchronous conveying device drives the longitudinal bars to be synchronously conveyed to the assembling and welding device, and the longitudinal bars are conveyed back and forth through the pushing trolley close to the assembling and welding device till all the longitudinal bars are conveyed to the assembling and welding device; s6, the stirrups and the longitudinal bars are welded through a welding robot; through the intelligent processing technology, compared with the prior art, the efficiency of assembling and mounting is greatly improved, and compared with a conventional prefabricated part steel bar manufacturing mode, the carbon emission per unit yield of a component is remarkably reduced.

The present subject matter discloses a novel roof designs of a blow-molded storage shed that enhances structural stability while ensuring ease of assembly and disassembly. The roof assembly features a beam support frame with multiple interconnected beam columns and crossbars, providing robust support for the roof structure. A central roof panel, equipped with an embedded seamless folding groove, folds to create a roof peak during installation. Additionally, side roof panels are connected to the central roof panel, forming a cohesive and durable roof assembly. This design optimizes both strength and ease of construction.

The invention relates to a reinforced concrete structure model construction method and device and a medium. The method comprises the steps that a first finite element model is established according to geometric parameters of a bridge basic structure; obtaining a material constitutive relation of the bridge structure according to a reinforced concrete structure tensile experiment; determining a first crack width calculation formula based on section model construction of the fiber beam column unit; embedding the material constitutive relation and a first crack width calculation formula into a first finite element model; inputting a structural load effect, and obtaining a structural performance degradation parameter and a structural crack parameter by using the first finite element model; according to the invention, the technology of more accurate reinforced concrete structure simulation based on the fiber beam column unit is realized, and the technical problem of difficult reinforcement crack simulation in the reinforced concrete structure is solved.

The invention discloses an assembly type subway station main body structure construction method based on a cover-excavation top-down construction method. Comprising the steps of underground diaphragm wall construction, upper covering soil excavation and pile position drilling, prefabricated pile construction, prefabricated top beam lifting and placing, prefabricated top plate lifting and placing, top beam plate-column joint post-pouring, top plate-side wall joint post-pouring, upper covering soil backfilling, negative first layer earthwork excavation, prefabricated middle beam lifting and placing, prefabricated middle plate lifting and placing, middle beam plate-column joint post-pouring and middle plate-side wall joint post-pouring. Excavating a negative second layer earthwork, pouring a bottom plate cushion layer, prefabricating a bottom beam in place and suspending, binding bottom plate steel bars, post-pouring a bottom plate, and post-pouring a bottom beam column node. A bottom plate is cast in place, a top beam, a top plate, a longitudinal beam and a floor slab are fully prefabricated, and an underground continuous wall and a prefabricated pile serve as temporary enclosure components and also serve as permanent vertical supporting components; and only a simple template needs to be erected, and after the top plate is mounted, the covering soil is backfilled to restore the road surface, so that the construction period is greatly shortened, and the influence of construction on urban traffic and environment is reduced to the minimum.

The invention provides a modular assembly type steel reinforced concrete combined beam column joint and an assembly method thereof. The modular assembly type steel reinforced concrete combined beam column joint comprises a joint core, a steel reinforced concrete combined column, a steel reinforced concrete combined beam, a plurality of single-side self-locking high-strength bolts and a plurality of common high-strength bolts. The node core comprises a node core cavity, at least one connecting end and at least one group of L-shaped connecting end plates; threaded holes are formed in the corresponding positions of the L-shaped connecting end plates. The steel reinforced concrete combination column comprises a column-shaped steel framework and column concrete wrapping the column-shaped steel framework. Bolt holes are formed in the corresponding positions of the columnar steel framework; bolt holes, grouting holes and grout outlet holes are reserved in the corresponding positions of the column concrete; the steel reinforced concrete composite beam comprises a beam shoe, beam H-shaped steel and beam concrete wrapping the beam H-shaped steel. Bolt holes are formed in the corresponding positions of the beam H-shaped steel. The beam shoe is used for being connected with the node core. The scheme has the advantages of convenience in field assembly, high connection reliability, short construction period, capability of realizing dry connection and the like.

The invention discloses a fabricated building module anti-seismic connection node structure, which relates to the field of fabricated buildings, is used for connecting beam columns and I-shaped beams, and comprises two connection plates symmetrically mounted at the end parts of the I-shaped beams; the fixing base is fixedly installed on the beam column, two symmetrically-arranged bearing parts are arranged on the fixing base, inserting grooves allowing the connecting plates to be inserted are formed in the bearing parts, and the connecting plates are connected with the bearing parts through bolts; the N first friction pieces are arranged between the two bearing parts; the first friction pieces and the second friction pieces are distributed in a staggered mode to form a friction contact face, during an earthquake, displacement of the beam column and the I-shaped beam forces the first friction pieces and the second friction pieces to slide relatively, kinetic energy is converted into heat energy to be dissipated, meanwhile, the N first friction pieces and the N + 1 second friction pieces are staggered to form multi-point friction, and the friction contact face is formed. The energy consumption efficiency is gradually increased along with the displacement magnitude, the anti-seismic energy consumption capacity of the structure is greatly improved, and damage of an earthquake to a building structure is effectively reduced.

The utility model discloses an H-shaped steel structure beam column splicing structure which comprises inserting block sets connected to the two ends of a transverse H-shaped steel structure beam column, each inserting block set comprises rectangular connecting blocks connected to the two sides of the transverse H-shaped steel structure beam column, splicing blocks are connected to the two sides of the rectangular connecting block on the single side, one side of each splicing block is connected with a sliding block, and the other side of each splicing block is connected with a sliding block. The longitudinal H-shaped steel structure beam column located beside the transverse H-shaped steel structure beam column is provided with a rectangular inserting groove and a sliding groove which are matched with the splicing block and the sliding block in an inserted mode, a plurality of first bolts are connected between the rectangular connecting block and the longitudinal H-shaped steel structure beam column, and a supporting rod is movably connected between the transverse H-shaped steel structure beam column and the longitudinal H-shaped steel structure beam column in an inclined mode.

The invention discloses an I-shaped column-full dry type connection RC beam column joint and a connection method, and belongs to the technical field of building structure engineering. The joint comprises a prefabricated I-shaped column, a stepped beam, a shear connector and a U-shaped connecting steel plate. A long bracket and a short bracket are respectively arranged at the top and the bottom of the I-shaped column; the end part of the step-shaped beam is in an inverted step shape and is provided with an extending section; the shear connector is a long-strip-shaped steel member provided with a screw rod; and the U-shaped steel plate is provided with screw holes which are respectively matched with the shear connector and the beam end screw. During connection, rapid assembly is achieved in the mode that the brackets of the upper column and the lower column are in lap joint, shear key grooves are interlocked, the shear connectors penetrate into the square holes, the beam bodies are supported on the combined brackets, and finally the U-shaped steel plates are used for anchoring. According to the joint, complete dry type operation is achieved, cast-in-place concrete and steel bar welding are not needed, the construction efficiency is remarkably improved, wet operation is reduced, loads can be borne after installation, the overall performance is reliable, and the development requirement of fabricated buildings is met.

The utility model relates to the technical field of building structure engineering, in particular to a steel beam column joint structure suitable for steel beams with different section heights. Comprising steel columns and steel beams. Each flange connecting piece comprises a first connecting part in bolted connection with a steel beam flange and a second connecting part in bolted connection with a steel column; the first connecting part and the second connecting part are vertically intersected to form a T-shaped bending component; the web connecting piece comprises a third connecting part in bolted connection with a steel beam web and a fourth connecting part in bolted connection with a steel column; the third connecting part and the fourth connecting part are vertically intersected to form a bent component; the corner connecting pieces are used for fixedly connecting the adjacent second connecting parts which are located on the different sides of the steel column and located at the different section heights into a whole in the horizontal direction. The steel beam column joint structure is good in overall stress, extremely high in stability and easy to install and assemble.

The invention provides a counterweight difference adjustment method for hogging moment area jacking of a special-shaped multi-girder steel-concrete composite beam, which comprises the following steps of: establishing a finite element model of the special-shaped multi-girder steel-concrete composite beam, and arranging two ends and the middle part of the special-shaped multi-girder steel-concrete composite beam on a beam column; performing jacking height simulation of different numerical values on the special-shaped multi-girder steel-concrete composite beam at the middle supporting point for many times to obtain a first bridge deck stress result at the middle supporting point; carrying out balance weight difference adjustment finite element simulation on the basis of the first bridge deck stress result, and applying a balance weight along the line type of the main beam to adjust the pre-compressive stress of the bridge deck at the middle fulcrum of the main beam so as to achieve a design target; and the concrete bridge deck is constructed on the basis of counterweight data obtained through counterweight difference adjustment finite element simulation. By establishing a finite element model and carrying out multi-group jacking height simulation and subsequent counterweight difference adjustment simulation, the stress state of the bridge deck at the middle fulcrum of each main beam under different working conditions can be accurately determined. The counter weight is applied on the basis, so that the stress nonuniformity caused by a special-shaped structure and a multi-girder system can be effectively made up, the pre-compressive stress of the bridge deck at the middle supporting point of each girder is more uniform, and the design goal is accurately achieved.

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 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 discloses a novel reinforced concrete prefabricated pipe gallery construction method, relates to the technical field of industrial and civil structure reinforced concrete prefabricated pipe galleries, and solves the technical problems of short construction period and low cost. The method comprises the steps that firstly, concrete beams and columns of the reinforced concrete pipe gallery are split according to a construction drawing and then prefabricated in a prefabrication yard; 2, after construction of the cup foundation is completed, the corresponding prefabricated columns and prefabricated beams are transported to the side of the foundation, the prefabricated columns are hoisted and fixed in the cup foundation, temporary inclined struts are installed, then the prefabricated beams are installed and fixed layer by layer through an elevator or a crank arm vehicle, and formwork clamps are installed at the beam column connecting joints; thirdly, after completion, high-strength-grade non-shrinkage concrete is poured, and therefore the transverse frame without weakening of the integrity is formed; the construction method is simple and easy to operate, and the requirement for the construction technology is not high.

The utility model discloses a combined building beam, column and shear wall reinforcement cage building system, which belongs to the technical field of building engineering, and comprises a beam reinforcement cage, a column reinforcement cage and a beam column connecting piece, the top of the column reinforcement cage is spliced with the bottom surface of the beam column connecting piece, the side part of the beam column connecting piece is spliced with one end of the beam reinforcement cage, and the other end of the beam reinforcement cage is spliced with the column reinforcement cage. The beam reinforcement cage and the column reinforcement cage are assembled after being prefabricated, and the beam column connecting piece is designed at the joint of the beam reinforcement cage and the column reinforcement cage, so that connection between the beam reinforcement cage and the column reinforcement cage is facilitated, and the beam reinforcement cage and the column reinforcement cage can be assembled conveniently. And the on-site construction time can be greatly saved.

The invention discloses a connecting structure and a connecting method of an adjustable prefabricated reinforced concrete beam column, a straight thread reverse thread sleeve is directly pre-buried in the prefabricated reinforced concrete beam during factory prefabrication, and no steel bar is exposed at the beam end. The pre-embedded sleeve is reserved on the prefabricated reinforced concrete column, correction of horizontal and vertical installation deviation in the installation process is facilitated, correction of installation deviation in the beam-column connection axis direction is guaranteed through the adjustable connecting piece, and connection length deviation, horizontal deviation and vertical deviation at the joint can be adjusted within a certain range. After a plurality of in-beam longitudinal bars are anchored through the end plates, the in-beam longitudinal bars are converted into a small number of pre-buried straight-thread reverse-thread sleeves, the number of connecting pieces is greatly reduced, and the workload and difficulty of site prefabrication, installation, construction and alignment are remarkably reduced.

The invention relates to the technical field of fabricated buildings, in particular to a function-recoverable fabricated beam structure beam column stress node which comprises a first circular steel pipe column, second circular steel pipe columns are fixedly connected to the top and the bottom of the first circular steel pipe column, and cover plates are fixedly connected to the opposite sides of the two second circular steel pipe columns. The surface of the first round steel pipe column is rotationally connected with four web plates which are annularly distributed at equal intervals. The joint has the advantages of improving ductility and rotation capacity and enhancing connection strength, firstly, the gap is formed between the first round steel pipe column and the web, the ductility of the joint is improved, the structure can absorb and disperse energy more effectively when stressed, the rotation capacity of the joint is further enhanced, and the joint is not prone to deformation; the damage risk of the structure under the action of dynamic loads such as earthquakes is reduced by avoiding direct extrusion and collision between the first round steel pipe column and the web, and therefore the durability and safety of the whole structure are improved.

The invention relates to a long rectangular steel reinforced concrete column and steel reinforced concrete beam connecting joint and a design method. The long rectangular steel reinforced concrete column and steel reinforced concrete beam connecting joint comprises a steel reinforced concrete column arranged in the vertical direction, a steel reinforced concrete beam arranged in the horizontal direction, a section steel assembly located in a joint area, connecting section steel, reinforcing steel bars and concrete. The profile steel assembly comprises a first web plate, a second web plate and two flange plates which are welded and fixed, the first web plate and the second web plate are vertically arranged and are perpendicular to each other, and the two flange plates are arranged on the two sides of the second web plate correspondingly; the connecting profile steel comprises a third web and two connecting flanges located at the upper end and the lower end of the third web. The first web is welded with a flange of in-column profile steel arranged in the steel reinforced concrete column, the connecting profile steel is welded with a flange plate, in-beam profile steel arranged in the steel reinforced concrete beam is in bolt welding equal-strength connection with the connecting profile steel, and the second web is arranged parallel to the axial direction of the steel reinforced concrete beam; the problems that the built-in profile steel of the beam column cannot be directly connected and the shear bearing capacity of a node core area is insufficient due to the fact that the beam is flush with the column edge are solved.

The invention discloses a concrete floor reinforcing method which comprises the following steps that a reinforcing area is selected on the top face of a concrete floor, a groove is formed in the reinforcing area, a plurality of embedded steel bars are embedded in the groove, a plurality of first structural steel bars are placed in the groove, and the top ends of the embedded steel bars and the first structural steel bars are mutually fixed; and finally, the groove provided with the first structural rib is subjected to filling treatment. When the reinforcing method of the concrete floor slab is used for reinforcing the concrete floor slab, after the structural ribs are additionally arranged in the reinforcing area, the tensile bearing capacity of the reinforced concrete beam to the concrete floor slab can be improved, and particularly, the tensile bearing capacity of the concrete floor slab can be improved on the basis that beam columns and concrete do not need to be additionally arranged; the risk that due to the fact that the construction quality is not tightly controlled and deviation exists in slab top steel bar construction, the tensile bearing capacity of a slab top is insufficient, and slab top concrete cracks is reduced, the construction process is simpler, and the construction difficulty is lower.

The invention proposes a three-dimensional modeling method based on multi-view image fusion and AI semantic material decoupling, and the method comprises the steps: employing a self-adaptive overlapped region weighted fusion strategy in an image preprocessing stage through an improved pyramid block matching algorithm, dynamically adjusting the gray value of a pixel through an inverse distance weighting function, and carrying out the dynamic adjustment of the gray value of the pixel; exposure differences and splicing gaps among multi-view images are eliminated, building structure features are extracted through a graph convolutional network by constructing a two-channel deep learning network and a space geometric channel, semantic segmentation of eaves and beam column components is achieved, and in the two-channel deep learning network, a material decoupling channel adopts an adversarial generative network; according to the method, the texture alignment precision can be improved to 0.3 pixel level in an ancient building digital case, the material attribute restoration error is lower than 8%, the model is supported to directly perform weathering simulation and virtual restoration operation in a Unity / Unreal engine, and a new technical normal form is provided for digital protection and activation utilization of cultural heritage.

The invention discloses a self-resetting steel reinforced concrete frame with a swing wall and an assembly method thereof. Compared with a traditional reinforced concrete structure, the steel-reinforced concrete structure has the advantages of being large in bearing capacity, large in rigidity, good in anti-seismic performance and the like. The system comprises three parts, namely steel-reinforced concrete frames on the left side and the right side and a swing wall YBQ in the middle, wherein the steel-reinforced concrete frames on the left side and the right side comprise two steel-reinforced concrete columns and two steel-reinforced concrete beams; the steel-reinforced concrete column is connected with the steel-reinforced concrete beam through the beam-column joint LJD; the swing wall YBQ is connected with the frames on the two sides through the four flexible supports ZC. A column base joint ZJD is arranged at the bottom of the steel-reinforced concrete column and connected with a foundation through a foundation bolt. Under a horizontal earthquake, the swing column, the energy dissipation beam column joint and the swing wall act together, the anti-seismic capacity and the self-resetting capacity of the structure can be greatly improved, and meanwhile the energy dissipation joint is easy to install and can also be replaced after being damaged.

The invention discloses a fabricated concrete industrial factory building structure, and relates to the technical field of industrial factory buildings. The assembly type concrete industrial factory building structure comprises a plurality of layers of laminates, the laminates are connected and supported through prefabricated concrete stand columns, each layer of laminate comprises a frame built through a concrete steel structure and a pavement structure laid on the top of the frame, and the frame comprises concrete cross beams, concrete longitudinal beams and concrete secondary beams. The concrete cross beams, the concrete longitudinal beams and the prefabricated concrete stand columns are perpendicularly connected through the main nodes. Concrete and I-shaped steel are combined and poured into a firmer beam column, stable installation and connection can be achieved only by using main joints and secondary joints to be matched with bolts at the connecting positions of all the parts, then a small amount of welding is conducted, more stability is achieved, the construction efficiency is high, follow-up dismantling work can be conveniently conducted, and the top surface layer is spliced through non-rib-out laminated plates, so that the construction cost is reduced. And then the concrete pavement is paved, so that the construction is relatively simple and rapid.

The invention belongs to the technical field of concrete beam column structures, and particularly relates to a beam column structure locally internally provided with thin-wall steel pipes and a mounting method of the beam column structure. By reasonably arranging the internally-arranged steel pipes and the reinforcing steel bars, the effects of reducing the dead weight of the structure and improving the bearing capacity are achieved. Due to the application of the steel pipe, the bending resistance and the shearing resistance of the concrete member are enhanced, and generation and expansion of cracks are effectively delayed. In addition, as the steel pipe has high strength and rigidity, the structure can still keep stable under the condition of high load, and is particularly suitable for occasions needing high bearing capacity, such as bridges and buildings. The stress characteristics of beam column components are fully considered, and a novel design method for internally-arranged steel pipe concrete is provided. Through detailed analysis of construction details and working principles, professional technicians can implement the method according to description, so that the safety and economical efficiency of an engineering structure are effectively improved. The shear resistance, the bending resistance and the overall stability of the structure are improved.

The invention relates to the technical field of valve drilling, and discloses large-diameter valve automatic indexing flange plate drilling equipment which comprises a base and a cross beam stand column fixedly installed above the base, an X-axis platform is arranged above the cross beam stand column, a Z-axis platform is arranged on one side of the X-axis platform in a sliding mode, a drilling machine is fixed to the Z-axis platform, and the drilling machine is fixed to the base. A rotary working table driven by a servo motor is arranged above the base, a valve is arranged above the rotary working table, the rotary working table supports the valve to rotate so as to conduct indexing flange drilling, a brake system is arranged on the outer side of the rotary working table, and the clamping and fixing part is arranged above the base. According to the device, the first telescopic plate is matched with the placement seat, and then the extension plate and the placement seat are matched with the valve, so that the extension plate is pushed out from the interior of the placement seat, the extension plate extends to the upper surface of the valve to adsorb drilling chips on the valve, and the cleaning effect of a valve hole is improved.

The invention discloses a temporary structure suitable for an assembly type station ending end, which comprises a temporary support structure arranged in a shape like a Chinese character'tian ', the temporary support structure is divided into a foundation support frame provided with an outer ring and a cross-shaped inner support frame body arranged between the foundation support frames, and the temporary structure further comprises an underpinning system arranged in the temporary support structure; through the construction method and structure of firstly building temporary steel beam columns and firstly supporting and then underpinning, the assembly starting point and end point positions of the full-prefabricated rectangular flat-top assembly type station are suitable for the working condition, the method can solve the problem of space and time conflict between the assembly trolley and the temporary steel stand columns, it is ensured that the assembly trolley is normally put into use, and the construction efficiency is improved. Meanwhile, the mounting and dismounting workload of the temporary section steel beam column is reduced, the construction efficiency is improved on the premise of ensuring the splicing quality, the high-place operation risk is reduced, meanwhile, normal construction of a post-pouring beam column system can be ensured, and the mounting and dismounting amount of large section steel components is reduced.

The utility model relates to a beam column reinforcing steel bar connecting structure of a concrete prefabricated assembly type building, which comprises a prefabricated column die cavity, a prefabricated beam die cavity and a prefabricated floor die cavity, and a prefabricated column reinforcing steel bar keel and a prefabricated beam reinforcing steel bar keel are pre-mounted in the prefabricated column die cavity and the prefabricated beam die cavity respectively. The prefabricated column steel bar keel comprises at least two column outer side steel bars and at least two column inner side steel bars, the prefabricated beam steel bar keel comprises at least two beam outer side surface bars and at least two beam inner side steel bars, and the column outer side steel bars and the beam outer side surface steel bars are manufactured by bending the same first reinforcing steel bar to form an upper section and a lower section which are perpendicular to each other. The lower section is pre-installed in a prefabricated column steel bar keel, and the upper section is pre-installed in a prefabricated beam steel bar keel in a prefabricated beam mold cavity. The connecting strength of the prefabricated column and the prefabricated beam is improved, and the pressure resistance, the shock resistance, the supporting stability and the house safety are improved.

The utility model relates to the technical field of steel structures, in particular to an auxiliary mounting device for accurately positioning a steel structure, which comprises a base, an embedded part, a positioning device, a positioning device, a positioning device and a positioning device, and is characterized in that the top of the base is fixedly connected with the embedded part; the mounting mechanism is arranged at the top of the base; wherein the mounting mechanism comprises a mounting frame arranged at the top of the base, adjusting cylinders are fixedly connected to the two sides of the inner wall of the mounting frame, and adjusting rods are slidably connected to the inner walls of the adjusting cylinders; according to the device, an inflator, an adjusting cylinder, an adjusting rod, a positioning frame, a ball and a first roller are utilized, so that a mounting frame is placed in the middle above a base, then rapid positioning of a steel structure beam column is achieved, the convenience of using auxiliary mounting equipment is improved, and a bidirectional lead screw, a sliding block and a second roller are utilized, so that the mounting efficiency is improved. The descending positions of the front end and the rear end of the steel structure are limited, and it is guaranteed that a steel structure beam column is rapidly and accurately positioned on the embedded part.

The invention discloses a two-stage friction energy dissipation type self-resetting beam column joint structure, and relates to the technical field of structural damping. The cantilever beam is vertically arranged on the middle-section side wall of the stand column; the splicing beam and the cantilever beam are arranged at an interval, and the free end of the cantilever beam is arranged opposite to the free end of the splicing beam; an upper wing plate of the cantilever beam is connected with an upper wing plate of the splicing beam; a lower wing plate of the cantilever beam is connected with a lower wing plate of the splicing beam; a two-stage friction energy consumption device is arranged between the free end of the cantilever beam and the free end of the splicing beam; two disc spring reset devices are arranged on the two faces of a web of the cantilever beam side by side respectively. Different lengths of the arc-shaped long holes in the friction plate are used for controlling graded friction energy consumption of nodes under different seismic intensities; the friction plate can return to the initial position through the disc spring reset device, the problem of residual displacement of the friction plate is solved, residual deformation of a structure after an earthquake is effectively reduced, and post-earthquake loss of a building structure is reduced.

The utility model provides a fireproof structure of an assembly type light steel keel partition wall and beam column connecting joint, and relates to the field of building facilities, the fireproof structure of the assembly type light steel keel partition wall and beam column connecting joint comprises a beam column body and a light steel keel partition wall, and the light steel keel partition wall is tightly attached to the beam column body. Light steel keel shooting nails are arranged in the light steel keel partition wall at equal intervals, the light steel keel shooting nails penetrate through the light steel keel partition wall to be nailed into the beam column body, and alkali-resisting glass fiber gridding cloth is arranged on the surface of the light steel keel partition wall. According to the fireproof structure of the assembly type light steel keel partition wall and beam column connecting joint, the light steel keel is a framework, and the mechanical stability is good. The main body parts are connected in a mechanical anchoring mode, and compared with a traditional building mode, the safety performance is more reliable. Through cooperation of the T-shaped battens, the threaded columns, the base rods and the sliding pieces, the connecting effect of the beam column and the light steel keel partition wall is improved, and the overall firmness is improved. Fine sand is additionally filled in the T-shaped strip plate, so that the fireproof effect at the connecting joint is improved.

The invention provides a self-resetting assembly type beam column joint based on sawtooth-shaped flange resetting connecting pieces and self-balancing disc spring web connecting pieces, and the self-resetting assembly type beam column joint mainly comprises a steel column with a cantilever beam section; a steel beam; the sawtooth-shaped flange self-resetting connecting assembly enables the steel beam and the cantilever beam section to be connected and fixed at the upper flange and the lower flange through sawtooth mechanical occlusion and disc spring bolts, sliding friction energy consumption is achieved through sawtooth mechanical occlusion, and self-resetting is achieved through the disc spring bolts; the self-balancing disc spring web connecting assembly connects and fixes the steel beam and the cantilever beam section at the web through a self-resetting disc spring set, and self-resetting is achieved through the self-resetting disc spring set. The self-resetting beam-column joint provided by the invention has an efficient composite self-resetting function, and can restore to an initial position after an earthquake is ended, so that residual deformation is remarkably reduced, and the post-earthquake repair cost is reduced.