32results about How to "Reduce on-site welding workload" patented technology

The invention discloses a steel-encased concrete composite beam-steel pipe column connection joint and a manufacturing method thereof. The joint comprises a steel pipe column, an upper through partition plate, a lower through partition plate, a lateral connection plate and the like; the upper through partition plate and the lower through partition plate are arranged on the steel pipe column in a transverse penetrating mode; hogging moment reinforcing steel bars are welded to the two ends of the end face of the upper through partition plate, the lower through partition plate and the lateral connection plate form a U-shaped device on the column side, and the U-shaped device can be made into a uniform cross-section or a variable cross-section form according to beam-column cross section size; a steel-encased girder is directly placed in the U-shaped device and connected with the U-shaped device through high-strength bolts. The steel-encased concrete composite beam-steel pipe column connection joint has the advantages that the welding work of the whole U-shaped device can be completed in a factory, a steel-encased girder bottom plate and a lateral plate are connected with the joint through high-strength bolts, the site welding work amount is greatly reduced, and construction and assembling are facilitated; the hogging moment reinforcing steel bars are directly welded to the upper through partition plate, the situation that steel pipe bearing capacity is weakened due to trepanning in the side wall of a steel pipe can be reduced, and force transfer is definite.

The invention provides a connecting node for a steel pipe concrete post and an outside U-shaped steel and concrete composite beam. In order to prevent the lamellar tearing of the steel pipe walls and the outer surface deformation of a post wall plate, a penetrating separation plate penetrating through steel pipes is arranged in the steel pipes arranged in a position of a composite beam bottom plate; the steel pipes are broken in a position of the penetrating separation plate; the upper steel pipe and the lower steel pipe are connected with the upper end surface and the lower end surface of the penetrating separation plate through butt-jointed welding seams with grooves; a U-shaped steel bottom plate is connected with the penetrating separation plate by the butt-jointed welding seams after the amputation; the welding seams cannot easily crack; the connection intensity is high; and the anti-seismic performance is good. The two opposite ends of the steel pipes in the length direction of the composite beam are correspondingly provided with sleeves capable of being movably connected with the end parts of negative reinforcement steel bars; and the sleeves are welded with the outer walls of the steel pipes. The structural form has the advantages that the weakening on the carrying force of the steel pipes due to the hole forming in the side walls of the steel pipes can be reduced; meanwhile, the welding workload is reduced; the construction is convenient; and the assemblage can be conveniently realized. In order to effectively transfer the load, a horizontal reinforcement plate is fixedly welded in a position, corresponding to the sleeves, of an inner cavity of the steel pipes.

The invention provides a node for connecting a concrete-filled steel tube column and an external wrapping U-shaped steel concrete composite beam. The node facilitates the pouring of concrete in a steel tube, easily guarantees pouring quality of concrete in a node area, is favorable for welding operation and easily guarantees weld seam quality. An outer annular plate is welded to the outer side of the steel tube at the position of a U-shaped steel base plate, the two opposite ends inside the outer annular plate in the length direction of the composite beam are connected with the U-shaped steel base plate having undergone limb cutting through butt joint weld seams, the weld seams do not crack easily, the connecting strength is high, and the vibration resistance is good. Sleeves capable of being movably connected with the ends of a hogging moment steel rib are arranged at the two opposite ends inside the steel tube in the length direction of the composite beam respectively; and the sleeves are welded to an outer wall of the steel tube. The structural type can reduce the weakening of steel tube bearing capacity caused by hole opening in a side wall of the steel pipe, the welding workload is reduced, and the construction and assembly are facilitated. To effectively transmit a load, horizontal reinforcing plates are fixedly welded to the positions of a steel tube inner cavity corresponding to the sleeves.

The invention discloses a concrete filled steel tube transfer joint structure and a construction method thereof. The concrete filled steel tube transfer joint structure comprises a strut, a batter post and a socket frame; the batter post is fixedly connected to the socket frame; the socket frame is fixedly arranged inside the strut and located at a top end of the strut; the socket frame comprises a vertical inner ribbed plate; the batter post is provided with a section including a cross section; a shape of the vertical rib ribbed plate corresponds to a shape of the cross section and a connecting ribbed plate extends out of the vertical inner ribbed plate; the connecting ribbed plate extending out is fixedly connected to an inner wall of the strut; the batter post is fixed on the vertical inner ribbed plate through the section. The concrete filled steel tube transfer joint structure is integrated with the advantages of a concrete-filled steel tube and a battery post transfer structure, and has the advantages of direct force transfer, high bearing capacity, small sectional dimension of the component, good utilization of building space, no need for support formwork, small field welding workload, guaranteed construction quality and the like. Two batter posts and a beam system form a triangular force transfer mode, and meanwhile, excellent side force resisting capability is realized.

The invention relates the technical field of connecting joints, in particular to a prefabricated plate wall inter-layer transverse seam connecting joint. The prefabricated plate wall inter-layer transverse seam connecting joint comprises a lower layer plate wall module upper end connecting joint body and an upper layer plate wall module lower end connecting joint body, connecting casing pipes matched with a cup mouth casing pipe are arranged on the two sides of the lower end of an upper layer plate wall module correspondingly, and the upper plate wall module is internally provided with the corresponding connecting joint body which is parallel to a transverse seam and comprises a connecting plate. The connecting plate and a second bolt are located in a C-shaped steel empty groove, and slurry injecting holes are formed in the two sides of the lower portion of the upper layer plate wall module correspondingly. The prefabricated modules can be multi-layer crossing modules, rapid assemblingof the prefabricated building modules can be achieved, and the construction period is shortened; the modules are connected through the anchoring effect of high-strength grouting materials, and a great amount of on-site welding workload is reduced; only a horizontal seam of 20 mm is reserved between the modules, and the on-site module support workload is reduced; and through the design of a cup mouth between the plate wall modules, the connecting strength and quality between the modules are ensured.

The invention relates to a stay cable joint for open chord strengthening of a space structure. Strengthening is achieved on an existing structure welded spherical joint (5). The stay cable joint comprises steel wire ropes (1), a stay cable (2), a dual-lug type cable head (3), a hinge pin (4) and limiting steel tubes (6), the hinge pin (4) penetrates through lug holes of the dual-lug type cable head (3), after the steel wire ropes wind across the welded spherical joint (5), the two ends of each steel wire rope are arranged on the hinge pin (4) in a sleeving mode, and the limiting steel tubes are fixed on the welded spherical joint (5), and used for limiting sliding of the steel wire ropes along a sphere.

The invention relates to a box type beam and column connecting assembly type node preparation technology and a node thereof. The node comprises a box type beam, a vertical column and a bracket, the end of the box type beam forms an H-type end through transition, the H-type end comprises an end upper flange, an end lower flange and an end web plate; the vertical column is connected with the bracketthrough welding, and the bracket is an H-type bracket which comprises a bracket upper flange, a bracket lower flange and a bracket web plate; the H-type end is in butt joint with the flanges and theweb plate of the H-type bracket, connecting plates are arranged on the two sides of the flanges and the web plate and firmly connected through bolts, and then the box type beam and column connecting assembly type node is formed. Accordingly, the manufacturing cost is greatly lowered, on-site construction is more convenient, the labor intensity is lowered, box type beam node complete assembly connection is achieved, the box type beam and column connecting mounting speed is increased, and the project construction period is shortened.

The invention relates to a multidirectional through concrete filled steel tubular column beam joint provided with steel corbels and a ring beam. The multidirectional through concrete filled steel tubular column beam joint comprises a plurality of steel corbels and the ring beam, wherein the steel corbels are radially connected to a steel tubular column; inner ends of the plurality of the steel corbels penetrate through the steel tubular column and are mutually welded and connected in the steel tubular column, and outer ends of the plurality of the steel corbels penetrate through the ring beam; the ring beam comprises a ring beam framework and inner concrete ring beam cores arranged in the ring beam framework; the ring beam framework comprises two layers of ring beam bottom ribs, two layers of ring beam top ribs and ring beam stirrups; a plurality of reinforcing steel bar rings of each layer of ring beam bottom ribs and each layer of ring beam top ribs are concentric, and are located on the same plane and bound by a plurality of stirrups; and the two layers of ring beam bottom ribs and the two layers of ring beam top ribs are bound by a plurality of the ring beam stirrups. The joint has the advantages that the joint is simple in structure, free of dense reinforcing steel bars and feeble fragile stress positions and stable in load transmitting, can safely and stably bear a frame beam, and is convenient to construct, short in period, low in cost and applicable to construction of high-rise and super high-rise buildings having multidirectional through concrete filled steel tubular column beam joints comprising steel corbels and ring beams.

The invention relates to a combined reinforcement structure for solving a cracked steel bridge deck by additionally arranging a fiber-reinforced layer. The combined reinforcement structure for solvingthe cracked steel bridge deck by additionally arranging the fiber-reinforced layer is characterized in that the combined reinforcement structure for solving the cracked steel bridge deck by additionally arranging the fiber-reinforced layer comprises the fatigue cracked steel bridge deck, a fiber-reinforced composite material layer, shear connecting parts, steel fabrics and a concrete layer, wherein the shear connecting parts are arranged on the fiber-reinforced composite material layer, the fiber-reinforced composite material layer is laid to a cracked part of the fatigue cracked steel bridgedeck, the steel fabrics are placed on the fatigue cracked steel bridge deck, the concrete layer is arranged on the fatigue cracked steel bridge deck in a pouring mode, the shear connecting parts andthe steel fabrics are covered with the concrete layer, and the concrete layer is connected with the fatigue cracked steel bridge deck.

The invention relate to a reinforcing structure for a cracked steel bridge panel. According to the technical scheme, the reinforcing structure for the cracked steel bridge panel comprises the crackedsteel bridge panel, carbon fiber reinforcing battens, metal reinforcing battens, shear connecting parts, steel fabrics, an ultra-high performance concrete layer and a wearing layer, wherein the carbonfiber reinforcing battens are bonded to the cracked steel panel through organic structural adhesives; the shear connecting parts are welded to the metal reinforcing battens; the metal reinforcing battens with the shear connecting parts are directly welded or cemented on the cracked steel bridge panel, and alternately arranged with the carbon fiber reinforcing battens in parallel; and the steel fabrics are placed on the cracked steel bridge panel, the steel fabrics are composed of longitudinal steel bars and transverse steel bars, the longitudinal steel bars and the transverse steel bars are crisscrossed, the ultra-high performance concrete layer is arranged on the cracked steel bridge panel in a pouring mode, the carbon fiber reinforcing battens, the metal reinforcing battens, the shear connecting parts and the steel fabrics are covered with the ultra-high performance concrete layer, the ultra-high performance concrete layer is connected with the cracked steel bridge panel, and the ultra-high performance concrete layer is covered with the wearing layer.

The invention belongs to the technical field of boiler component structures, and particularly relates to a large-span suspended soot blowing platform structure which comprises a platform, two supporting frames, a hanging frame and a truss, wherein the lower part of the platform is supported by the supporting frames, and the truss is arranged between the supporting frames; one end of each supporting frame is fixed onto one corresponding vertical column, and the suspended end of the supporting frame is connected with the vertical column through the hanging frame, so that an upper-hanging and lower-bracket structure can be formed; the platform is composed of a plurality of platform frameworks, a horizontal support and a grid; the horizontal support is arranged on the side, close to a beam andthe vertical columns, of the platform; the platform frameworks are arranged side by side on the outer side of the platform; and the grid is laid above the platform frameworks and the horizontal support. According to the large-span suspended soot blowing platform structure provided by the invention, the brand-new supporting-hanging mode is adopted, no outer columns need to be arranged, the platform supporting structure is simplified, the large-span soot blowing platform layout demand is met, and the steel consumption and the civil engineering cost are reduced.

The invention discloses a slot device based on a self-similar curtain wall structure system and a construction method. The slot device comprises side plates, a slot body with an opening in the upper end is defined by the multiple side plates, a bottom plate is fixed to the bottom of the slot body, and a spring plate is arranged in the slot body; the plurality of spring plates are mutually enclosed to form a slot; the problems that in a traditional curtain wall structure column fixing structure and a construction method, precision is difficult to control, construction operation is difficult, and a reserved gap of a curtain wall column inserting core is difficult to control are solved.

The invention provides a giant concrete-filled steel tubular inclined column and inclined strut transferring joint structure. The giant concrete-filled steel tubular inclined column and inclined struttransferring joint structure comprises inclined supporting columns (1), a frame column (18), inclined struts (19), a transferring element and a frame beam (8), the inclined struts (19) are fixedly connected to the transferring element, the frame column is fixedly connected to the transferring element, the transferring component is fixedly arranged at the top ends of the inclined supporting columns, and the frame beam is fixedly connected or hinged to the transferring element. The transferring element comprises an elliptical transferring piece, a great circle-to-small circle transferring pieceand a circle-to-square transferring piece, wherein the elliptical transferring piece, the great circle-to-small circle transferring piece and the circle-to-square transferring piece are sequentiallyand fixedly connected. The elliptical transferring piece is connected with the inclined supporting columns, the great circle-to-small circle transferring piece is connected with the inclined struts, and the circle-to-square transferring piece is connected with the frame column. Annular stiffening rib plates and longitudinal stiffening rib plates are arranged in the inclined supporting columns, theframe column and the inclined struts, vertical internal rib plates parallel to the surfaces of the inclined struts, vertical internal rib plates perpendicular to the surfaces of the inclined strut and annular stiffening rib plates are arranged in the transferring element, and the inclined supporting columns are connected with the transferring element through a horizontal circular transferring ribplate and a vertical arc-shaped transferring rib plate.