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2020 results about "Steel columns" patented technology

Easily repaired steel-structure beam-column node

InactiveCN101812872ASolve the lack of ductilitySolve the problem prone to brittle failureShock proofingHigh intensitySteel columns
The invention relates to an easily repaired steel-structure beam-column node, in particular to an easily repaired steel-structure beam-column node which is applied in the field of structural engineering and particularly used in high-intensity earthquake-proof areas. The node comprises an upright H-shaped steel column and an H-shaped steel beam of which the end part is vertically connected on a side wing plate of the H-shaped steel column, and is characterized in that: connecting ends of a belly plate of the H-shaped steel beam and the side wing plate of the H-shaped steel column are connected by a reinforced connecting plate closely contacted with the belly plate of the H-shaped steel beam and high-strength bolts penetrating the reinforced connecting plate, the reinforced connecting plate is in welding connection with the side wing plate of the H-shaped steel column, and both sides of the connecting end of a bottom side wing plate of the H-shaped steel beam are in locked connection with the H-shaped steel column by a T-shaped connecting plate and penetrating high-strength bolts respectively; and the T-shaped connecting plate is transversely arranged, upper and lower ends of the T-shaped connecting plate in the vertical direction are in locked connection with the side wing plate of the H-shaped steel column by a washer and the penetrating high-strength bolts respectively, a transverse plate of the T-shaped connecting plate is supported on the lower part of the bottom side wing plate of the H-shaped steel beam and locked by the penetrating high-strength bolts. The structure can effectively avoid brittle failure, has good ductile fracture characteristic, and can be widely applied to structures of earthquake areas, particularly the high-intensity earthquake-proof areas; and the easily repaired steel-structure beam-column node of the invention also has the advantages of convenient construction and convenient after-earthquake repairing.
Owner:FUZHOU UNIV

Production process method of pipe whip restraint steel structure of main power house of nuclear power station conventional island

The invention belongs to the technical field of pipe whip restraint steel structures of main power houses of nuclear power station conventional islands, in particular to a production process method of the pipe whip restraint steel structure of the main power house of the nuclear power station conventional island, which comprises the lofting process, the marking-off and scribing process, the cutting processing process, the bevel processing process, the hole-making process, the correction process, the polishing surface, the material splicing process, the pre-splicing process of a steel member, the assembly process, the processing process of a friction surface, the welding process of the steel structure and the anti-slip test of the friction surface of the steel member before leaving a factory, sandblasting, derusting and coating of a base coat are carried out in the factory, and the production of the steel structure is divided into the production processing of a welded H-shaped steel column, the production of a steel beam, the assembly and the welding of a support part, the production of a combined steel beam, the assembly and the welding of a girder box body and an inclined support below the girder box body, and the assembly and the welding of a pipe whip restraint key. The production process method can improve the drilling precision, utilize a numerical control planar drilling machine to complete the drilling on a gusset plate, determine a variety of processing processes and welding process parameters, and ensure the dimension of the member after the assembly and the smooth proceeding of field installation.
Owner:EAST STEEL STRUCTURE BRIDGE

System for alternatively supporting whole lifting steel platform formwork by steel column casing rack and construction method

The invention discloses a system for alternatively supporting a whole lifting steel platform formwork by a steel column casing rack. The system comprises a steel platform, a template system, a scaffold system, a support system and a climbing system, wherein the support system comprises a casing rack support and a steel column support; the climbing system comprises climbing boosts and a hydraulic system; preformed core column holes are distributed on a core cylinder structure at intervals along the height direction; the casing rack support is fixedly arranged under the steel platform; the steel column support is fixed in the preformed core column holes under the construction state to serve as the support of a steel platform formwork under the construction state; under the climbing state, the steel column support is fixed to the upper end part of the concrete core cylinder structure and is used as the support of the steel platform formwork under the climbing state; and under the construction state, the steel column support is fixed to the steel platform by the climbing boosts. According to the system, the steel platform formwork system can greatly reduce the construction cost and save the engineering material by the whole hydraulic climbing supported by the tool type steel columns.
Owner:SHANGHAI CONSTRUCTION GROUP +1

Reamed steel structure beam-column joint connected via end plate and construction method for same

The invention relates to a reamed steel structure beam-column joint connected via an end plate and a construction method for the same. The reamed steel structure beam-column joint connected via an end plate comprises a steel column and an H-section steel beam, which is characterized in that: a steel column flange is connected with the end plate via a friction-type high-strength bolt; the end plate is connected with a steel beam web via a steel beam web connection plate; the end plate is connected with an upper steel beam flange and a lower steel beam flange via a steel beam flange connection plate; the steel beam web connection plate and the steel beam flange connection plate are welded on the end plate via groove full penetration welds; oblong holes are disposed on the steel beam web connection plate and the steel beam flange connection plate; the steel beam web connection plate and the steel beam flange connection plate are connected with the steel beam web and the steel beam flange via friction-type high-strength bolts; and the steel column flange is provided with a shear-resisting support plate on the bottom of the end plate. The reamed steel structure beam-column joint connected via an end plate and the construction method for the same disclosed by the invention can remarkably enhance the ductile deformability and energy dissipation capability of the joint under the function of a rare earthquake, and have the advantages of being convenient in construction, easy to repair after an earthquake etc.
Owner:FUZHOU UNIV

Construction method for formed steel reinforced concrete beam-column nodes

The invention relates to a construction method for formed steel reinforced concrete beam-column nodes, belonging to the technical field of industrial and civil building construction. According to the invention, the problem for arranging and binding intricate and complicated steel bars and corresponding formed steel in formed steel beam and formed steel column connection node domains is creatively and sequentially solved; the boring of formed steel wing plates is avoided; the up-and-down adjusting and the bending for horizontal bars of X beams and Y beams can be realized through enabling the horizontal/longitudinal bars of the X beams and the Y beams to intersect with the formed steel columns and opening vertical long-strip holes on web plates of the formed steel columns; the area of the openings on the web plates of the formed steel columns is controlled to exceed 20% of that of the sectional area of the web plates, thus the negative influence on the strength of the web plates of the formed steel columns because of the openings is reduced to the maximum; and hoop bars are orderly arranged on the upper surfaces of column stiffening plates at intervals at the spatial staggered positions of column main bars, the column stiffening plates and column hoop bars, thus the number of steel bar joints is reduced. The construction method provided by the invention not only increases the construction efficiency, but also ensures to enhance the project quality and the node domain bearing capacity for the beam-column connection of formed steel reinforced concrete structures.
Owner:HUBEI HONGYI BUILDING DECORATION ENG

Hole-expanding type steel structure beam column node in short T-shaped steel connection and connection method of hole-expanding type steel structure beam column node

The invention relates to a hole-expanding type steel structure beam column node in short T-shaped steel connection. The hole-expanding type steel structure beam column node comprises two pieces of short T-shaped steel, a steel column and an H-shaped steel beam of which the end is vertically connected to a flange plate of the steel column, wherein a web plate of the short T-shaped steel is connected with the flange plate of the H-shaped steel beam; and the flange plate of the short T-shaped steel is connected with the flange plate of the steel column. The hole-expanding type steel structure beam column node is characterized by also comprising a flange steel cushion plate, wherein the flange steel cushion plate connects the web plate of the short T-shaped steel and the flange plate of the H-shaped steel beam by using a friction type high-strength bolt; the flange plate of the short T-shaped steel is connected with the flange plate of the steel column by using the friction type high-strength bolt; and a bolt hole in the web plate of the short T-shaped steel is a long circular hole. The invention also relates to a connection method of the hole-expanding type steel structure beam column node in the short T-shaped steel connection. The steel structure beam column node has quite high ductile deformation capacity and excellent energy-dissipation capacity; and the brittle failure of the steel beam or the steel column in a node area under the action of a seldom-occurring earthquake can be prevented.
Owner:FUZHOU UNIV

High-rise building frame supported sectional steel concrete girder-like structural transfer floor construction method

InactiveCN101333825ASolve the difficulty of tyingSolve the problem of binding difficultiesBuilding constructionsConcrete beamsRebar
Disclosed is a construction method of the support frame steel concrete girder structure transfer floor for the high-rise buildings, which relates to the high-rise building structural transferring technology. Reinforced plates are welded on a profiled steel girder column flange plate and a profiled steel column flange plate; a profiled steel column stirrup is machined to an open stirrup which is welded on the reinforced plate. A perforation hole used for the stirrup to be inserted into is preset on the web plate of the profiled steel column; an angle table is welded on the profiled steel column flange plate; reinforced steel bars are in lap welding with the angle table. In the intersection of a non-frame girder and the profiled steel girder, the reinforced steel bars disconnect a bent anchor on the profiled steel girder web plate; wall body reinforced plates are generally welded on the upper flange wall body of the profiled steel girder; both sides of the wall body reinforced steel bars are welded on the wall body reinforced plates. Perforation holes used for the stirrup to be inserted into are prearranged on the upper flange of the profiled steel girder for the reinforced steel bar parts of the upper column and the concealed column of the profiled steel concrete girder; tie bars are welded with the tie bar reinforced plates. Spilt bolts are welded on both sides of the profiled steel web plate to reinforce the profiled steel concrete girder mould plate. The construction method of the support frame steel concrete girder structure transfer floor for the high-rise buildings has the advantages that the important technical problem the support frame steel concrete girder structure transfer floor in the construction process of the high-rise buildings is solved; the intensity, rigidity and the vibration resistance of the profiled steel concrete girder are reinforced.
Owner:BEIJING SHOUGANG CONSTR GROUP +1

Construction method of large-sized arc-shaped wall

The invention discloses a construction method of a large-sized arc-shaped wall. The method mainly comprises the following steps of: measuring and positioning; erecting a scaffold; mounting an arc-shaped in-column section steel column; binding a steel bar on the periphery of the section steel column; measuring and positioning, mounting an arc-shaped annular beam inner steel bar on the section steel column, and binding and fixing; mounting and fixing an arc-shaped column and an arc-shaped annular beam template on the steel bar; pouring concrete to form the arc-shaped column and an arc-shaped annular beam; measuring and manufacturing an arc-shaped plate; and mounting and fixing the arc-shaped plate on the arc-shaped column and the arc-shaped annular beam. According to the construction method of the large-sized arc-shaped wall, vertical sectioned construction is adopted, inner section steel and a steel bar structure of the arc-shaped column and the arc-shaped annular beam are erected layer by layer; the template is bound and is poured and molded; the poured arc-shaped column and the arc-shaped annular beam are continually provided with the upper-layer arc-shaped column and the arc-shaped annular beam; and finally, the arc-shaped plate which is designed and manufactured outside a field is mounted on the arc-shaped column and the arc-shaped annular beam, and process improvement can be carried out according to implementation effects.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Experimental device for researching drill column dynamic characteristic

InactiveCN103712790AResearch is accurate and feasibleMachine part testingCircular discElectric machinery
The invention relates to an experimental device for researching a drill column dynamic characteristic. The experimental device comprises a main machine frame, a well-wall-simulating assembly, a rotary assembly, a disc assembly, an excitation assembly, a weighing assembly and a detecting device. The well-wall-simulating assembly comprises an organic glass tube, a fixing clamping and a clamp mounting plate. The rotary assembly is provided with a motor, a driver, a coupler, a thin steel column and a top mounting plate, the rotary assembly penetrates through the whole main machine frame, the disc assembly comprises a disc and a cylinder, the disc is arranged on a floating platform, and the disc conducts rotary movement in the cylinder. An exciter in the excitation assembly excites the bottom of the disc according to the input signal type to simulate interaction of a drill head and rocks at the bottom of a borehole. The detecting device comprises a whirling motion track and a transverse vibration and longitudinal vibration detecting device. The experimental device for researching the drill column dynamic characteristic can simulate the vibration and deformation situations of a drill column and determine the parameters of the rotating speed, the bit pressure similarity ratio and the like according to the dynamic similarity ratio and the geometric similarity ratio.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Flat shim plate-adjustable grouting installation method

The invention relates to a flat shim plate-adjustable grouting installation method, belonging to a method for installing a steel column or a device. The method comprises the following steps: symmetrically welding rectangular plates with holes on the back and forth of the left side and the right side of a flat shim plate at intervals; cutting a grouting pit outside the foundation bolt or the preset hole of the concrete foundation of an installation device; arranging four screw holes which are arranged into a rectangle in the grouting pit; correspondingly and vertically plugging four screws the upper ends of which are respectively screwed with a regulating nut into the four screw holes; correspondingly sheathing the holes on the four rectangular plates of the flat shim plate onto the four screw in a penetrating mode so that the flat shim plate is supported on the regulating nuts; utilizing the regulating nuts to regulate the scale height and the levelness of the flat shim plate; leveling the flat shim plate for the fist time, arranging a grouting box on the foundation surface at the periphery of the grouting pit and placing a grouting material into the grouting box; when the grouting material is prehardened, utilizing the regulating nuts to accurately level the flat shim plate so that both the scale height and the levelness of the flat shim plate reach the installation requirements. When the steel column or the device is installed, an inclined shim plate is not needed for leveling, thus the method is convenient and speedy.
Owner:CHINA MCC17 GRP

Fully-enclosed assembled string structural system and construction method thereof

InactiveCN103147509AOvercome applicabilityOvercome tightnessArched structuresVaulted structuresLong axisSteel columns
The invention discloses a fully-enclosed assembled string structural system, which comprises a bearing structure and a building envelope, wherein lattice dual-rod truss steel beams are connected with lattice dual-rod truss steel columns through flanges and bolts to construct portal lattice dual-rod truss steel beam columns; a plurality of steel beam columns are arranged symmetrically in parallel at certain intervals along the long axle direction of the structural system to construct a load-bearing light steel framework; an upper string cord and a lower string cord are connected between the steel beam column at the outermost end and an adjacent steel beam column; a flexible cable is tensioned by using internal steel beams; a plurality of stay poles are uniformly distributed between the flexible cable and lower chords of the steel beams; and the building structure is a film material covering a roof surface and a wall surface. The structural system designed by the invention has the advantages of easiness, practicability, light dead weight, convenience in transporting and assembling, and capability of meeting the requirement of repeated use. The invention provides a detailed construction method specific to the structural system. The method is easy to implement, the construction efficiency can be ensured, and the space utilization and repeated utilization ratio can be ensured. The fully-enclosed assembled string structural system can be widely applied to open type large-space light steel structural systems.
Owner:BEIJING ARCHITECTURAL & ENG DESIGN

Steel column and beam structure with corrugated steel web and special welding device thereof

The invention relates to a steel column and beam structure used in the building and a welding device thereof, particularly discloses a steel column and beam structure with a corrugated steel web and a special welding device thereof. The steel column and beam structure comprises an upper wing plate, a lower wing plate and a web plate arranged between the upper wing plate and the lower wing plate, wherein the upper wing plate and the lower wing plate are made of plates with the thickness of 4-30mm, the web plate is a corrugated steel web plate with the thickness of 4-10mm, and the surfaces of the upper wing plate, the lower wing plate and the web plate are prepared with 50-500Mu m of roughness; the welding device of the steel column and beam structure with the corrugated steel web comprises a welding tractor and a welding gun arranged on the welding tractor, wherein tool sliding bars which are symmetrical are arranged on the welding tractor, a magnetic adsorption piece is arranged at the bottom of the welding tractor, four driving wheels are symmetrically arranged at two sides of the magnetic adsorption piece, and a track positioning retainer is arranged in a bracket at the middle part of the welding tractor. The middle web plate adopts the corrugated steel web plate, the steel beam and column with the corrugated steel web is welded by using the special welding device, therefore, the invention has the advantages of light weight and strong earthquake resistance.
Owner:ZHEJIANG CTB WAVEFORM STEEL WEB

Manufacturing method of fish ball production machine capable of remarkably increasing yield

The invention discloses a manufacturing method of a fish ball production machine capable of remarkably increasing yield. The manufacturing method comprises the following steps: support columns are respectively welded and fixed at lower ends of a pill making chamber, close to two side walls, wherein the support columns are in steel column structures with length of 1.5m and diameter of 20cm, a discharge hole with diameter of 10cm is formed at the middle end of the bottom of the pill making chamber, the lower end of the discharge hole is perpendicular to the ground and is suspended at the bottom of the pill making chamber, and a left rotary table and a right rotary table are horizontally welded and fixed at the middle part inside the pill making chamber; a stirring chamber is welded and fixed at the upper part of the pill making chamber, a stirring motor is welded and fixed at the center position of the upper part of the stirring chamber, a stirring auger is sheathed and fixed on the lower end of the output shaft of the stirring motor, and the stirring auger is perpendicular to a gap between the lower ends of two material slipping plates and is suspended at the center position inside the stirring chamber. The manufacturing method has the advantage of simplicity, the manufactured fish ball production machine has simple structure, high strength and high production efficiency and can rapidly make fish balls, the fish ball products have the same specifications and are sanitary and clean, the production cost is saved, the labor intensity of workers is reduced and the structure is compact.
Owner:QINGDAO JINLONGYI FOOD

Blasting demolition method for cylindrical steel column structure buildings

The invention belongs to the technical field of engineering blasting and particularly relates to a blasting demolition method for various cylindrical steel column structure components and buildings, wherein the cross sections of the cylindrical steel column structure components and buildings are shaped like Chinese character 'tian' or 'ri' or are of a square shape. The blasting demolition method is characterized by comprising the steps of (a) pouring concrete 2 in a columnar steel structure 1 to be blasted, (b) maintaining the concrete 2, (c) conducting oxyacetylene metal-cutting and drilling a blast hole 3 in the obverse side of the columnar steel structure 1, (d) precutting a seam 7 in the columnar steel structure 1, (e) determining blasting parameters, charging powder and connecting lines, (f) conducting protection and (g) conducting blasting. By means of effective implementation of the blasting demolition method for the cylindrical steel column structure buildings, the purpose of blasting demolition of the cylindrical steel column structure components or buildings through industrial explosive materials (emulsion explosives) can be achieved, and the blasting demolition method has the technical advantages of being safe, efficient and low in cost compared with a traditional manual demolition means.
Owner:中铁二十三局集团(湖北)爆破有限公司

Steel structure grain bin and mounting method thereof

The invention provides a steel structure grain bin and a mounting method thereof, and belongs to the technical field of grain storage equipment. The steel structure grain bin comprises a floor, a steel structure frame, walls and a roof, and the floor is a composite layer floor and is provided with sill anchors in an embedded mode. The steel structure frame is fixedly connected with the sill anchors and comprises steel columns, steel beams, wall purlines, roof purlines, wall bracing bars and roof bracing bars. The steel columns and the steel beams are connected through bolts to form a door type frame in even distribution, and the wall purlines are arranged on the outer sides of the steel columns and are perpendicular to the steel columns. The wall bracing bars are fixedly arranged between the wall purlines through bolts, and the roof bracing bars are fixedly arranged between the roof purlines through bolts. The walls are waterproof walls and are fixedly arranged on the outer side of the steel structure frame, and wash aprons are arranged at the bottoms of the outer sides of the walls. A plurality of windows are arranged on the walls, and each window is provided with a window transfer bar. A double-layer bin gate is arranged on the wall on one side, and ventilation holes are evenly formed in the lower portion of the wall on the opposite side. The roof is a waterproof roof and is arranged on the top of the steel structure frame. The steel structure is firm and is good in waterproof performance and heat insulation performance.
Owner:辽宁福瑞达建筑科技有限公司
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