2020 results about "Steel columns" patented technology

A novel building construction is described for exterior building walls. The construction comprises an interior frame formed of a plurality of laterally spaced studs or beams, a layer of rigid insulation adjacent to the exterior side of this steel frame, exterior building cladding adjacent the exterior side of the rigid insulation and a plurality of low conductivity connectors, e.g. insulating plastic connectors or thin metal strips having an insulating plastic foam coating, extending through the layer of rigid insulation and connecting together the exterior cladding and the interior steel studs or beams. Vertical channels are formed adjacent both the inside and outside faces of the insulation layer to remove moisture. This provides the required structural strength with a minimum of thermal conductivity from the warm side to the cold side of the building envelope, while providing exterior drain channels and interior moisture removing channels.

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.

The invention relates to a steel frame precast prestressed beam column joint with a post-earthquake recovering function. The joint comprises a steel frame column, a short beam section, a beam column connection device and an energy consumption device, wherein the steel frame column comprises a steel column, a column reinforced rib and a column reinforced plate; the short beam section comprises a short beam section web, a short beam section flange and a short beam section flange reinforced plate; the beam column connection device comprises a short beam section web reinforced rib, a prestressed cable and a beam end top plate; the energy consumption device comprises two channel steels and a high-strength bolt; and the two short beams are integrally connected with the column in a factory through a tension prestressed cable and two short beam section web reinforced ribs. When the earthquake action achieves a certain degree, the contact surface of the beam and the column is opened; the high-strength bolt is in friction energy dissipation so as to avoid destroying main components, such as beams and columns After the earthquake, the beams can be recovered to the former vertical position under the action of the prestress.

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.

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.

The fully prefabricated assembled steel-steel concrete structure includes two kinds of assembling forms. The first one is fully prefabricated assembled steel column-steel concrete structure, and its prefabricated steel column consists of H-shaped steel column, reinforcing concrete ribs, supporting steel plate and prestress-shearing force friction nodes with shear resisting strips. The second one is fully prefabricated assembled prefabricated steel pipe-concrete column-steel concrete structure, and the prefabricated steel pipe-concrete column consists of steel pipe with square cross section, micro expanding high strength concrete cast inside the steel pipe and shear resisting strips attached to the outer wall of the steel pipe to form preshearing force-friction type nodes. The present invention has raised antiseismic performance, area utilization, construction efficiency, fireproof performance, low cost and small member size, and is suitable for various buildings.

The invention discloses a single shaft tension loading device for testing the carbonation property of the concrete under tensile stress and a test method, wherein the hex nuts pre-embedded at the axis of two ends of the tested element connect the cylinder or rectangle tested element between two parallel steel plates, four same compressed springs are sheathed on four steel columns of the diameters smaller than the inner diameter of the springs, the two steel plates can parallel move between the four steel columns, the material parameters and the compressed quantity of the springs can be used to calculate the axial tensile load on the tested element, the tested element is axially patched with three stress sheets to find the actual tensile stress at different parts. The characteristic parameters of the springs can be changed to obtain the carbonation test parameters under different tensile stresses.

The invention relates to a normally-closed type power supply main switch device which comprises a shell (1), a current sampling unit connected with an integral load, a main control chip (7), a movable contact (9) and a static contact (10), wherein a magnetic coil (13) is wound on an iron core (15) and a steel column (14), and the magnetic coil (13) is supplied with power by a storage battery (12). The normally-closed type power supply main switch device is characterized by also comprising switch parts respectively connected with the magnetic coil (13) and the main control chip (7); the current sampling unit is respectively connected with the static contact and the main control chip; and the main control chip (7) collects a signal of a start switch (2) and a current signal of the current sampling unit for controlling the switch parts.

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.

A rotary system having a sectional drill steel column connecting a drilling machine and rotary drill bit and being constructed and arranged to accommodate internal fluid flow to the drill bit without pressure loss, and which column employs a coupler section having both threaded and multi-faced ends for joining adjacent drill steel sections; and further having supplemental bore reamers adjacent to the drill bit to maintain design bore dimensions and accommodate fluid flow and removal of cuttings.

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.

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.

Novel prefabricate prestressed steel frame girder-column pitch point with a post-earthquake self-reset function comprises steel frame girders and steel frame pillars, wherein the steel frame girders comprise middle girder sections, short girder sections, reinforcing devices, connecting devices and energy consumption devices. The middle girder sections comprise middle girder section webs and middle girder section flanges connected on the periphery of the middle girder section webs; and the connecting mode of the steel frame girders and the steel frame pillars is that short girder section webs are connected with steel pillars through scabs and high-strength bolts. When an earthquake reaches a certain degree, connecting surfaces of the middle girder sections and the connecting vertical plates are separated, and the high-strength bolts rub to consume energy, and thereby avoiding or reducing damage of main construction members such as the steel frame girders and the steel frame pillars. After the earthquake, the structure can return the original vertical position under the prestressed influence, and can restore original functions of the structure.

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.

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.

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.

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.

The invention discloses a standardized node connector of a steel structure, comprising a steel column and a connection board. The connection board is fixedly connected on the side surface of the steel column; the free end of the connection board is a bolt connector; both ends of the steel column are fixedly connected with a flange on which a connection hole is arranged; the steel column is provided with a vertical through seam matched with the connection board; the connection board penetrates through the vertical through seam; and the connection board is fixedly welded with the penetrated part of the steel column. The invention has standard structure and convenient use as well as strong carrying capacity, can be applied in industrialized production and is very beneficial to promotion and application.

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.

The invention relates to a box section beam column node structure and sintering method that is sintered from box steel column and girder steel. Enforcing internal partition board is set in the steel column. Two sides of each horizontal steel board sinter clearance between steel column board and make the enhanced internal partition board with steel column to integrity. The total thickness of the two or three boards of horizontal steel boards matches to the external steel girder steel flange thickness that always larger or equal to the thickness of external steel girder steel flange. The invention ensures the sintering quality and saves producing cost.

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.

The invention relates to an active thermal control focusing device for a space camera. The device comprises a secondary mirror component and a focusing component, wherein the secondary mirror component comprises a secondary mirror chamber (1), a secondary mirror pressure ring (2) and a secondary lens (3); the focusing component comprises a heatproof mat (4), an invar steel column (5), an aluminum ring (6), a heating piece (7), a radiator (8) and a thermistor (9); the secondary lens (3) is tightly pressed in the secondary mirror chamber (1) through the secondary mirror pressure ring (2). The device has the advantages of consistency with a space using condition, stable performance, high accuracy and reliable structure.

The invention discloses an electric throwing and backing device for protecting a pressure plate, which comprises a pressure plate connecting sheet, a pressure plate base, a position checking bracket, a drum cover, and a magnet steel column, a lifting column, a straight edge rebounding ring, a bevel edge thrust ring, an E-type spacing collar and a drive motor which are mounted inside the drum cover. The device transforms the whirling action of the driving motor into the release, the whirl, the pullback and other movement of the pressure plate connecting sheet through driving the drive motor and the transmission coordination of all internal components, so that the throwing and the backing movements of the pressure plate are transformed. The device has the advantages of simple and reasonable structure, lower production cost, convenient operation and use, good throwing and backing property and reliable mechanical breakpoint.

The invention discloses a construction method for temporarily supporting and strengthening a reinforced concrete structured beam by using a steel column. The method for temporarily supporting and strengthening the reinforced concrete structured beam is finished by the following construction steps of: arranging a base steel plate of the steel column; stringing a bolt hole to draw and lift steel column members; adjusting the verticality of the steel column and limiting the position; arranging and fixing a steel column jacking support; tightening and prepressing the steel column by using a simple jack, welding to form a steel column bearing base support, and the like. The construction method has the advantages of simple assembly and disassembly, low labor intensity, low labor and material consumption, and good effect of the formed temporary support structure.

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.

The invention discloses a fast hoisting-aligning method for Large-sized steel frames, and a steel frame base structure. The method comprises: precisely positioning a light steel bottom plate; drawing center lines on the steel bottom plate and a steel column ready to be connected; aligning a center line on the steel bottom plate with the center line on the steel column during alignment; and welding and fixing the steel column and the steel bottom plate. The method has the advantages of convenient fast alignment and capability of greatly accelerating project progress, reducing construction cost, preventing anchor bolts from being destroyed during construction and improving project reliability.

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.

The present invention is one kind of automatic continuous concrete contraction and stress measurer. On one test stage, there are two concrete molds, one for measuring stress and the other for measuring contraction. The mold for measuring concrete stress has one end fastened to the frame and the other end connected to the frame with screw and nut, and the other end of the screw has dynamometric quartz sensor connected with output signal fed to instrument or microcomputer. The mold for measuring concrete contraction has central hole in the two ends for the small steel column pre-buried inside concrete, one eddy current sensor is installed on the frame, and some interval is reserved between the small steel column and the sensor. When concrete contracts, the interval will change and the shrinkage of concrete may be measured and the signal the eddy current sensor outputs is fed to the instrument or microcomputer. The present invention has high measurement precision.

The invention relates to a light-steel light-concrete structural system and a construction method thereof. The structural system consists of pillars, beams, walls, floor plates and a roof panel; the pillars, the beams, the walls, the floor plates and the roof panel are formed by casting light steel and light concretes in situ; and the light-steel pillars and the light-steel walls are formed by connecting light-steel section bars and connecting sheets, and the floor plates and the roof panel are formed by connecting light steel, connecting sheets and steel meshed sheets. The structural system has light dead weight, good aseismicity, integrity and waterproofness and favorable thermal insulation and sound insulation performances, solves the problems of waterproofing, fireproofing and rust-proofing of the traditional light-steel structure, has the advantages of high industrialized degree, low overall cost, convenient construction and environmental protection, and is suitable for common civil buildings and light industrial factory buildings.

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.