38 results about "Rc frames" patented technology

The invention belongs to the technical field of power plant construction, and provides a high-intensity area steel support and frame connecting method and a high-intensity area steel support and frame connecting mechanism. The machined box-shaped steel component is placed at the joint, and a stirrup penetrates through a stirrup hole in a joint plate in the box-shaped steel component; pouring concrete in the reinforced concrete frame; and the support is connected with the gusset plate. In combination with the characteristic of coordinated stress of a steel member and reinforced concrete, a box-type steel pipe is directly pre-embedded into the connecting part of the steel support and the concrete; the rigidity of a connecting part is improved, the number of shear-resistant stirrups in a joint core area is reduced as a rigid domain, compared with a traditional embedded part, stress is more direct, and the shear-resistant and bending-resistant bearing capacity of the concrete member bearing the axial force of the steel inclined strut is improved.

The invention discloses an artificial fish reef and an artificial fish reef putting method, and belongs to the technical field of water ecological restoration and fishery engineering. The artificial fish reef comprises a reef body, an anchoring structure and a take-up structure. The reef body is of a reinforced concrete frame structure, a bottom plate is closed, other faces are open, protective nets and cross beams are arranged on the side portions, the cross beams are connected through connecting rods, and planting boxes can be installed on the connecting rods. The anchoring structure comprises an anchor hook and an anchor chain, and the take-up structure comprises a take-up box, a take-up roller, a spring and a spring trigger assembly. Through cooperation of the trigger rod and the limiting rod, automatic retracting, releasing and anchoring of the anchor chain are achieved, the structure is stable, installation is convenient and fast, water flow scouring can be effectively reduced, the survival rate of submerged plants is increased, a spawning and inhabiting place is provided for fishes, and the fish gathering effect is remarkably improved.

The invention discloses a construction method for a reserved hole plugging pull-up type formwork support. The construction method comprises the following steps that reinforced concrete frame beams are arranged on the periphery of a reserved hole; placing a cross beam above the reserved hole; a reinforcing steel pipe is placed on the shelving cross beam; the upper ends of the split bolts are fixed to the upper portion of the upper reinforcing steel pipe; a formwork is erected on the lower portion of the reserved hole, and a plurality of battens are fixed to the lower portion of the formwork at intervals; the formwork is correspondingly provided with open holes according to the positions of the split bolts, and the split bolts penetrate through the open holes of the formwork and the gaps between the battens. Lower reinforcing steel pipes are arranged below the battens, and a split bolt penetrates through a gap between the two steel pipes of each group of lower reinforcing steel pipes; the lower end of the split bolt is fixed below the lower reinforcing steel pipe; and floor slab steel bars in the reserved hole area are bound, concrete is poured, and plugging of the reserved hole is completed. The invention solves the problem that the template support frame body of the plugging structure cannot be erected due to the fact that the process equipment occupies the reserved hole.

To provide a reinforcement bar mount that facilitates easy placement of transverse reinforcement bars in a wall.SOLUTION: A reinforcement bar mount 10 is used for arranging transverse reinforcement bars 4 to be embedded in a reinforced concrete wall 1. The reinforcing bar mount 10 comprises: at least a pair of pillars 20 which are arranged separately at a predetermined distance on a floor surface 2; a horizontal connecting member 21 which connects the pillars 20 to each other, and diagonal braces 12. Each of the pillars 20 comprises: a channel steel 23 which extends upward from the floor surface 2; and a plurality of reinforcement bar supports 24 which are provided alongside the channel steel 23 in a vertical direction and to which transverse reinforcement bars 4 are locked. The reinforcement bar supports 24 are hook-shaped to prevent the transverse reinforcement bars 4 from falling off.SELECTED DRAWING: Figure 4

This invention discloses a prefabricated connection structure and construction method for a PVC-FRP pipe reinforced concrete frame and a light steel keel steel mesh foamed concrete wall. It includes: a PVC-FRP pipe reinforced concrete column, comprising PVC pipe, FRP strips, column stirrups, and column longitudinal reinforcement; a light steel keel steel mesh foamed concrete wall, comprising a light steel keel frame and a steel mesh; wall-side embedded connection components, including a vertical U-shaped connecting channel steel, an embedded connection box, an arc-shaped stiffening rib, and a wall-side arc-shaped connecting plate disposed outside the arc-shaped stiffening rib; and a column-side closed sleeve insertion assembly, comprising a closed-type round steel pipe sleeve connector and an open-box type column-side insertion connector. This prefabricated connection structure and construction method for a PVC-FRP pipe reinforced concrete frame and a light steel keel steel mesh foamed concrete wall can adapt to the outer contour of a round column, without damaging the PVC pipe and FRP strips, while simultaneously ensuring wall edge anchoring, insertion positioning, anti-slip properties, and reliable connection between the wall and the upper and lower beams.

The utility model provides a brick-concrete house transformation and reinforcement structure, and belongs to the technical field of brick-concrete structure building transformation and reinforcement. The structure comprises a brickwork outer wall, foundation beams are arranged at the bottoms of the inner side and the outer side of the brickwork outer wall, unloading beams are further arranged at the bottom of the brickwork outer wall, the unloading beams transversely penetrate through the brickwork outer wall and are connected with the foundation beams, and the inner side of the brickwork outer wall is reinforced through a cement mortar surface layer; the structural columns penetrate through the floors and extend to the bottom of the roof panel, and strip-shaped foundations are arranged at the bottoms of the structural columns; the structural beam plates are arranged on all the layers, the ends of the structural beam plates are connected with the structural columns or the masonry outer walls, and buttress columns are arranged at the ends, connected with the masonry outer walls, of the structural beam plates and extend downwards to the foundation beams along the masonry outer walls. On the premise that the external facade of the bare brick wall of an original building is not changed, the bare brick wall is transformed into a reinforced concrete frame structure for stress, and the anti-seismic performance, ductility and integrity of the building structure are improved.

The utility model belongs to the technical field of test, in particular relates to a reinforced concrete frame column test device, and aims to solve the problems that in the conventional reinforced concrete column test, particularly when an anti-seismic test is carried out on a reinforced concrete column, the reinforced concrete columns poured in different proportions are inconvenient to intuitively compare, and the test time is shortened. In order to solve the problems that in the prior art, in the prior art, in the prior art, a user often needs to be far away from a testing device during testing, personnel are prevented from being injured, and meanwhile testing personnel cannot conveniently observe details of the test in a close range, the following scheme is provided that the device comprises a base, a shaking base is arranged at the top of the base, and a first foundation pit and a second foundation pit are formed in the top of the shaking base. When the device is used, the shaking mechanism achieves the function of testing two reinforced concrete columns with different proportions by simulating a real earthquake environment, and the protection mechanism ensures the smooth proceeding of the test and the accuracy of the result by guaranteeing the safety of test personnel and facilitating observation and recording.

The invention relates to the technical field of building construction, in particular to a movable lifting frame for mounting a steel beam in a reinforced concrete frame structure, which comprises a preset track, a lifting frame chassis and a lifting assembly, two opposite bottom plates are provided with first mounting grooves, and each first mounting groove is internally provided with two first traveling wheels; a first driving motor for driving the first walking wheels to rotate is fixed to the side wall of the bottom plate, a lifting beam moving rail is fixed to the top of the stand column, the lifting assembly comprises a lifting beam and a lifting device capable of moving in the length direction of the lifting beam and lifting the steel beam, and second walking wheels are installed at the bottoms of the two ends of the lifting beam correspondingly. The bottom of the second walking wheel is located in the lifting beam moving track, and a second driving motor for driving the second walking wheel to rotate is fixed to the lifting beam. The movable lifting frame has the technical effects of being stable in structure, flexible to move and accurate in positioning.

The invention discloses a variable cross-section friction damper, and relates to the technical field of structural damping. The device comprises a fixed connecting assembly and a sliding energy dissipation assembly. Outer steel plates are fixed to the two sides of a lower inner steel plate. The upper-side inner steel plate is located between the outer steel plates, friction plates are arranged on the two sides of the upper-side inner steel plate, the upper high-strength bolts penetrate through the outer steel plates, the friction plates and the upper-side inner steel plate, and the belleville spring gaskets are arranged on the upper high-strength bolts in a sleeving mode. A variable cross-section section is arranged on the surface of the upper inner steel plate, and when the friction plate and the upper inner steel plate generate relative displacement and slide along the variable cross-section section, the thickness change of the upper inner steel plate forces the outer steel plate to move relatively in the axis direction of the bolt, so that the belleville spring gasket deforms and generates extra pressure, and the pre-tightening force borne by the friction plate is dynamically adjusted. Follow-up change of friction force output is achieved, the energy dissipation capacity under large displacement is remarkably improved, the structure is compact, and the damping device is extremely suitable for wall type connection damping of an RC frame.

The utility model discloses an assembly type reinforced concrete frame structure beam assembly joint which comprises a stand column, and cross beams are arranged on the two sides of the stand column. Right-angle mounting plates are mounted on the two sides of the stand column respectively, each right-angle mounting plate comprises a transverse plate and a vertical plate, one end of each transverse plate is fixedly connected with the top of the corresponding vertical plate, and the included angle between each transverse plate and the corresponding vertical plate is 90 degrees; the transverse plates are sleeved with first n-shaped plates, and the tops of the two first n-shaped plates make contact with the bottom faces of the two cross beams correspondingly. The vertical plates are sleeved with second n-shaped plates, and the outer side walls of the two second n-shaped plates make contact with the two sides of the stand column correspondingly. Elastic buffer assemblies are mounted between the transverse plate and the cross beam and between the vertical plate and the stand column; a transverse reinforcing rib is fixedly installed between the transverse plate and the vertical plate, and the first n-shaped plate and the second n-shaped plate are both fixedly connected with the transverse reinforcing rib. Stable connection between the cross beam and the stand column can be achieved, the applicability and the bearing capacity of the joint are improved, the anti-pressure capacity of the joint is enhanced, and the service life of the joint is prolonged.

The invention relates to the technical field of anti-seismic house building construction, and discloses an anti-seismic house building construction method which comprises the following steps: S1, foundation treatment and foundation construction: carrying out geological investigation on a building site, and determining foundation bearing capacity and seismic activity parameters; a pile foundation or a raft foundation is adopted, a shock insulation layer is arranged between the foundation and an upper structure, and a shock insulation groove is formed in the edge of the foundation; s2, frame structure construction is conducted, a reinforced concrete frame with the strength grade not lower than C40 is adopted, and energy consumption devices are arranged at frame joints; and S3, wall construction is conducted, specifically, an aerated concrete block wall with the thickness of 200 mm is adopted, the shock insulation groove and the shock insulation layer can be used in cooperation, the impact of seismic waves on a building foundation is further weakened, the seismic load borne by the foundation can be reduced, L-shaped angle steel can be additionally arranged at the corner of the wall for reinforcement, and the anti-shearing capacity of the wall is further improved.

The invention provides a swing wall reinforced concrete structure design method based on toughness, which comprises the following steps: analyzing earthquake damage of an existing concrete structure, and evaluating the anti-seismic toughness level of the existing concrete structure according to an analysis result, so as to determine an anti-seismic toughness improvement target of the existing concrete structure; preliminarily determining design parameters for reinforcing the swing wall; the earthquake damage of the reinforced concrete structure is analyzed, the anti-seismic toughness level of the reinforced concrete structure is evaluated according to the analysis result, so that whether the anti-seismic toughness improvement target of the existing concrete structure is met or not is determined, and the design parameters, meeting the anti-seismic toughness improvement target, of swing wall reinforcement are obtained according to the determination result; the method has the beneficial effects that quantitative toughness evaluation and a reinforcing design scheme are organically combined, and a reinforcing design method of the existing reinforced concrete frame structure and the frame-shear wall structure is established by adopting a novel swing wall technology, so that the anti-seismic toughness level of the existing concrete structure is improved.

The utility model discloses a concrete filled steel tubular column and split-level reinforced concrete frame beam connecting structure which comprises a concrete filled steel tubular column body, a cross-shaped fixing frame is fixedly installed in the middle of the concrete filled steel tubular column body, and a first split-level reinforced concrete beam is installed at the top end of one side of the cross-shaped fixing frame. A first split-level reinforced concrete beam is installed at the bottom end of one side of the cross-shaped fixing frame, a second split-level reinforced concrete beam is installed at the bottom end of the other side of the cross-shaped fixing frame, and first profile steel brackets are installed on the two sides of the connecting position of the first split-level reinforced concrete beam and the cross-shaped fixing frame. A built-in anti-bending steel corbel transition section is adopted to arrange an anti-shearing stud in a built-in steel cow leg section to ensure the cooperative work of a beam end combination section, and the combination section resists the bending moment transmitted by the beam end; meanwhile, an anti-shearing steel corbel is combined to resist shearing force; on the basis of the current specifications and atlas, the structure of the concrete filled steel tube and split-level beam connecting joint is supplemented.

The utility model provides a high-rise building reinforced concrete frame beam structure which comprises a frame beam and a frame column, the two ends of the frame beam are respectively provided with a connecting part, the four surfaces of each connecting part contract towards the center of the frame beam, and an installation space is formed between each connecting part and the frame beam. The ends, away from the frame beam, of the connecting parts are rigidly connected with the frame columns, first mounting grooves are formed in the four surfaces of the two ends of the frame beam correspondingly, second mounting grooves are formed in the positions, corresponding to the first mounting grooves, of the upper ends of the frame columns, and two telescopic ends of plate-shaped dampers are mounted in the first mounting grooves and the second mounting grooves correspondingly. The connecting part, the first mounting groove, the second mounting groove and the plate-shaped damper are arranged, the mounting positions of the two telescopic ends of the damper are arranged on the side faces of the frame beam and the frame column respectively, and the damper is located outside the frame beam and the frame column structure, so that a worker can conveniently make contact with the damper, and the working efficiency is improved. And maintenance is very convenient and fast.

The utility model relates to the technical field of architectural architecture, in particular to a node mechanism of a concrete filled steel tube composite column and a frame beam, which comprises a main body, a support mounting component fixedly connected to the bottom of the main body, a first pouring component arranged on the side surface of the support mounting component, and a beam hinge component arranged at the bottom of the first pouring component, a second pouring assembly is arranged at the bottom of the body. The beam longitudinal bars, the beam stirrups, the column longitudinal bars and the column stirrups are additionally arranged in the concrete pouring point, the number of concrete cracks on the top of the frame column can be reduced, stress of the frame beam bracket plate is low, the frame beam bracket plate and the frame beam bracket plate are all in an elastic state, and the reinforced concrete frame transfer joint has good technical and economic performance. The purpose of anti-seismic performance of strong joints and weak components can be achieved, and by means of the laminated connection structure of the frame beam bracket plates, the problem of frame beam steel bar welding can be solved, and the influence of eccentric stress of a reinforced concrete frame can be reduced.

The application is suitable for the technical field of reinforced concrete reinforcement, and provides an outer steel sleeve reinforced damaged reinforced concrete frame structure, which comprises two groups of end reinforcement mechanisms, the end reinforcement mechanism comprises four reinforcement angle steels, further comprises: a middle reinforcement mechanism, the middle reinforcement mechanism comprises two connecting plates, a plurality of pressing plates are distributed between the two connecting plates, reinforcement steels are arranged on the pressing plates, two first connecting rods are symmetrically installed on the reinforcement steels at both ends, and two second connecting rods are symmetrically installed on the remaining reinforcement steels; and a supporting mechanism, the supporting mechanism comprises a plurality of supporting angle steels, two supporting plates are symmetrically installed on the supporting angle steels, sliding blocks on the supporting plates are connected with push rods through transmission rods, and the push rods are connected with push plates. The device can effectively reinforce the frame column, has good supporting effect, and can make the frame column have a use function even if the frame column is damaged.

The utility model provides a novel protection and reinforcement integrated structure suitable for a fractured rock mass slope. The novel protection and reinforcement integrated structure comprises an anchor rod frame system, system anchor rods, a steel bar protection net, sprayed concrete and a vegetation layer. The anchor rod frame system comprises a reinforced concrete frame and node anchor rods; a node anchor rod is arranged at each frame node position, the node anchor rods are obliquely arranged in the broken rock slope, one end of each node anchor rod is anchored to the deep position of the stable bed rock, and the other end of each node anchor rod is connected with the reinforced concrete frame; arranging system anchor rods on the slope surface of the broken rock slope according to a certain row distance; a reinforcing steel bar protective net is laid at the bottom of the anchor rod frame system, and sprayed concrete is sprayed on the reinforcing steel bar protective net; and a vegetation layer is laid in each grid of the reinforced concrete frame. The structure can effectively cope with the instability problem of the fractured rock mass slope under the weathering and unloading effects, has the advantages of being high in stability, strong in durability, good in adaptability, ecological, environmentally friendly and the like, and has wide application prospects in the field of slope protection and reinforcement of water-power engineering.

The utility model discloses a modularized fast assembly reinforced concrete frame which comprises supporting columns, cross beams, clamping assemblies, a first connecting plate and a second connecting plate, and the clamping assemblies comprise clamping plates, side plates and reinforcing ribs. By arranging the multiple clamping assemblies, the first connecting plate and the second connecting plate, the supporting column and the cross beam can be connected in a wrapping mode, then rapid connection of the supporting column and the cross beam is achieved, and compared with connection of high-strength bolts, welding and other modes, the stability and the supporting capacity of connecting points after connection can be effectively improved; and in addition, the occupied building space after connection is small, then the grouting space is effectively increased, and the utilization rate of the building space is increased.

This invention discloses a precast reinforced concrete frame column and a frame structure, including a frame column body, an outer steel pipe, a steel end structure, and a steel connecting bracket. Based on the connection position of the external beam on the frame column body, the column reinforcement cage has an inward-facing annular groove. The outer steel pipe is fitted outside the annular groove of the column reinforcement cage, with its outer wall flush with the outer wall of the column concrete body. The steel end structure is embedded within the column concrete body. Adjacent frame columns are fixedly connected via the steel end structure. The steel connecting bracket is fixed between the outer steel pipe and the external beam. The frame structure includes precast reinforced concrete frame columns and main beams. Corresponding steel connecting brackets are provided on the outer wall of the outer steel pipe of the precast reinforced concrete frame column. The end of the main beam is fixed to the other end of the steel connecting bracket. This invention simplifies the structure and construction process of the frame columns, main beams, and secondary beams, reduces steel usage, and improves construction efficiency.

The utility model discloses a reinforced concrete frame beam-column joint, which relates to the technical field of building construction, and is characterized in that through the arrangement of a movable mounting structure and an adjustable enclasping assembly, two enclasping long strips are horizontally moved, so that the two horizontally arranged enclasping long strips are close to each other or far away from each other and are arranged on the two sides of the upper end or the lower end of an arc-shaped beam; after the four holding long strips are all in place, the two holding long strips which are arranged in parallel up and down are oppositely pulled and fixed through the oppositely-pulling fixing pieces and hold the end parts of the arc-shaped beam, so that the fixed connection of the arc-shaped beam and the supporting columns is completed; compared with line contact or point contact in the prior art, a surface contact clamping and fixing mode is adopted, the phenomena that end connection of the arc-shaped beam is unstable or the arc-shaped beam is prone to being damaged due to too large stress and the like are avoided, installation is stable, the method can be more suitable for reinforced concrete frame beam-column connection of the arc-shaped beam, the arc-shaped beams of various specifications can be held and fixed, and the service life of the arc-shaped beam is prolonged. The applicability is higher, and the actual use effect is better.

The utility model relates to the technical field of side slope protection engineering, aims to solve the problems of how to improve the mechanical structure stability of a prefabricated lining block and how to improve the adaptability of the prefabricated lining block to a curved side slope, and provides a prefabricated lining block for side slope protection and a side slope protection structure. The prefabricated lining block for slope protection comprises an internal steel reinforcement framework and an external concrete frame. The steel bar framework comprises inner triangular steel bars and outer triangular steel bars which are fixedly connected. The concrete frame wraps the inner triangular steel bars and the outer triangular steel bars, and the middle of the concrete frame is hollowed to form a through hole. According to the prefabricated lining block for slope protection, the stability of the structure is improved through the inner triangular steel bars and the outer triangular steel bars which are fixedly connected with each other, and permutation and combination of the triangular prefabricated lining blocks are more suitable for surface fluctuation of a curved surface slope. The triangular basic structures of the prefabricated lining blocks can improve the mechanical structure stability of the prefabricated lining blocks, and the combination of the triangular basic structures can improve the adaptability of the prefabricated lining blocks to a curved surface slope.

The utility model provides a tensile, shear-resistant and torsion-resistant reinforced concrete frame beam structure which comprises a steel bar frame, concrete is poured in the steel bar frame to form a concrete building body, a drainage groove is formed in the outer side of the middle of the concrete building body in the circumferential direction, and a reinforcing steel bar structure is arranged in the middle of the steel bar frame. The outer side of the middle of the concrete building body is provided with the drainage groove in the circumferential direction, the surface of the concrete building body is provided with a flow guide structure, the flow guide structure comprises a drainage face, and the top of the drainage face is obliquely arranged and communicated with the drainage groove. Water on the surface of a frame beam is reduced, the water drying speed is increased, corrosion of water to a steel bar frame and damage to concrete are reduced, and the strength of the steel bar frame and a concrete building body is improved.

The invention relates to the technical field of rail transit buildings, and discloses a rail transit elevated station in a subtropical region, the rail transit elevated station comprises two independent closed pitched roof houses, the two pitched roof houses are transversely arranged at an interval, the middle interval is used for accommodating a rail-mounted region, and pitched roofs of the two pitched roof houses are splayed; the gradients of the two pitched roofs are the same, and the gradient range is 20-40 degrees; each pitched roof house comprises a reinforced concrete frame structure with a hollow-out body, the pitched roofs are fixed to the tops of the reinforced concrete frame structures, a plurality of door openings are reserved in the transverse inner wall faces, close to a rail-mounted area, of the pitched roof houses, and each door opening is provided with a shielding door capable of being opened and closed. According to the rail transit elevated station, the technical problems of poor integrity, poor connection stability and high noise are solved.

The application relates to the technical field of reinforced concrete frame structures, and discloses an anti-seismic reinforcing device and a reinforcing method for a reinforced concrete frame structure, wherein the frame comprises a first framework, a first cross reinforcing member connected in the first framework, and a first concrete layer poured and covered outside the first framework; the stand column comprises a second framework, a transverse reinforcing member in the second framework, a longitudinal reinforcing member arranged in the transverse reinforcing member, and a second concrete layer poured and covered outside the second framework, the transverse reinforcing member and the longitudinal reinforcing member, and the upper and lower ends of the longitudinal reinforcing member are expanded to the two sides and then inserted into the corresponding first framework; the first cross reinforcing member and the first framework form an integral whole, the structural strength of the frame is enhanced, the first cross reinforcing member can enhance the structural strength of the frame, the transverse reinforcing member plays a role in transversely supporting the inside of the second framework, and the longitudinal reinforcing member plays a role in longitudinally supporting the inside of the second framework.

The invention discloses a fully-fabricated double-layer pig farm building and a construction method thereof, and relates to the field of farming and pastoral breeding buildings. A full-assembly type double-layer pig farm building comprises a main body structure, the main body structure is sequentially provided with a roof truss, a double-layer breeding area and an excrement collecting area from top to bottom, and an enclosure side wall is arranged on the outer side of the main body structure; a main body structure outside the roof truss adopts a fully-assembled reinforced concrete frame structure, and a horizontal stress component adopts a standardized fully-prefabricated beam and a fully-prefabricated ribbed plate; the system has the advantages of being low in construction cost, short in construction period, environmentally friendly, capable of saving energy, high in land utilization rate, high in automation degree and high in building quality, breeding automation, standardization and intelligence are achieved, production efficiency is improved, cost is saved, and management complexity is reduced.

The invention provides an anchor penetrating outer wrapping type story-adding steel column connecting joint and a building story-adding structure. The connecting joint comprises a story-adding steel column, a steel reinforcement framework and an outer wrapping concrete layer. The steel bar framework comprises a plurality of plate penetrating longitudinal bars and a plurality of stirrups, and the plate penetrating longitudinal bars surround the peripheral side of the frame beam-column joint at intervals and are distributed on the outer sides of the corners of the frame beam-column joint. The multiple stirrups are fixed to the peripheries of the multiple plate penetrating longitudinal bars in a surrounding mode. The bottom end of each plate-penetrating longitudinal rib is bent to form a horizontal bent section, and the horizontal bent sections of the two opposite plate-penetrating longitudinal ribs are in lap joint with each other and are fixedly connected with each other. The outer wrapping concrete layer wraps the peripheral areas of the storey-adding steel columns and the reinforcement cage, so that the storey-adding steel columns, the reinforcement cage and the reinforced concrete frame form an overall stress structure. According to the connecting joint provided by the embodiment of the invention, the structural reliability of connection between the connecting joint and an existing frame beam column joint can be effectively improved, so that the overall stress reliability and construction feasibility of the connecting joint are improved, and the structural service life is prolonged.

The application discloses a kind of assembled concrete frame beam-column joints with double longitudinal beams, it is characterized in that: the node includes: prefabricated frame beam-column joint core area, prefabricated reinforced concrete frame lower column, prefabricated reinforced concrete frame upper column, prefabricated reinforced concrete frame double longitudinal beam, prefabricated reinforced concrete frame crossbeam, connecting plate, concrete cover;Wherein, prefabricated frame beam-column joint core area is connected between prefabricated reinforced concrete frame lower column, prefabricated reinforced concrete frame upper column using steel column splicing, and is connected between prefabricated reinforced concrete frame double longitudinal beam, prefabricated reinforced concrete frame crossbeam using steel beam splicing;After splicing is completed, concrete cover is protected by pouring.The application is applicable to power plant main plant building assembled concrete frame beam-column joints with double longitudinal beams, meanwhile, the application can effectively solve the problems of the present prefabricated concrete frame structure node core area, such as great pouring difficulty, difficult connection quality control, long construction period and the like.

This provides a method for tying together reinforced concrete frames for precast box girders. [Solution] The reinforcing steel frame for the girder is divided into multiple reinforcing mesh sheets and steel strip mesh sheets. Here, the reinforcing mesh is directly processed into the desired shape, and the reinforcing mesh sheets are directly placed in predetermined positions on the tying stage, and subsequent tying is performed manually. For extra-large standard mesh sheets and irregularly shaped mesh sheets, one reinforcing bar is first processed in the form of a steel strip mesh and then placed in the desired position, and the steel strip mesh is used to arrange, lay, and tie the through-reinforcements.

The present application relates to a kind of force support for the reinforced concrete frame beam-column node section increasing reinforcement, closed cylindrical force steel support is provided at the connecting place of frame beam and frame column, closed cylindrical force steel support penetrates concrete floor;Closed cylindrical force steel support is composed of upper layer "mouth" shape steel support, lower layer "mouth" shape steel support and vertical steel connecting piece;Upper layer "mouth" shape steel support is located above concrete floor and is arranged along the top of concrete floor, lower layer "mouth" shape steel support is located below concrete floor and is arranged along the lower flange of frame beam;Vertical steel connecting piece is arranged along beam height direction, its upper end is close to the surface of upper layer "mouth" shape steel support steel plate, lower end is close to the surface of lower layer "mouth" shape steel support steel plate.The node of the present application section increasing reinforcement is simple in construction, high in safety, green and environmental protection, and the spliced ribbed steel plate component can be processed in factory, which is a new type of reinforced concrete frame beam-column node reinforcement technology worthy of popularization.

The utility model relates to the technical field of constructional engineering structure reinforcement, in particular to a connecting support for reinforcing a steel structure. The connecting support for reinforcing the steel structure comprises a reinforced concrete frame and a newly-added steel structure, a first connecting seat is fixedly installed on the reinforced concrete frame, a second connecting seat is fixedly installed on the newly-added steel structure, the first connecting seat comprises a first lug plate and a first base plate, and the second connecting seat comprises a second lug plate and a second base plate. The first base plate is fixedly installed on the side wall of the reinforced concrete frame, and the first lug plate is fixedly installed on the first base plate. Differential settlement of a new structure and an old structure can be coordinated, stress of the steel structure is effectively improved, and lateral deformation of the steel structure is reduced.