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157 results about "Lattice girder" patented technology

A lattice girder is a truss girder where the load is carried by a web of latticed metal.

Large-span steel truss girder overall lifting system and method

The invention relates to the technical field of steel structure construction, aims to solve the problem of low precision caused by an existing integral hoisting mode, and provides an integral hoisting system and method for a large-span steel truss girder. Comprising a control module, a hydraulic lifting module, a three-dimensional laser scanner, a total station and an identification acquisition identifier arranged on a steel truss girder to be lifted, and the hydraulic lifting module, the three-dimensional laser scanner and the total station are connected with the control module; a hydraulic synchronous lifting technology is fused with a space positioning technology and a three-dimensional laser scanning technology of the total station, and a hydraulic lifting module is automatically adjusted by adopting data feedback of the three-dimensional laser scanner and the total station, so that the synchronization rate and the accuracy during overall lifting are improved, and the system is suitable for overall lifting of the large-span steel truss girder.
Owner:CHINA 19TH METALLURGICAL CORP +1

3D printing concrete truss girder structure based on three-dimensional steel bar reinforcement and construction method

According to the 3D printing concrete truss girder structure based on three-dimensional steel bar reinforcement and the construction method, through space welding connection of the three-dimensional conical steel bars and the top plane steel bars, the interlayer bonding performance and the overall stress performance of a 3D printing concrete truss girder are remarkably improved. The three-dimensional conical steel bars comprise plane steel bars matched with the truss girder in length and width and a plurality of three-dimensional conical steel bar units, the three-dimensional conical steel bar units are arranged in the mode that the height of a three-dimensional space component formed by bending metal steel bars crosses over at least one or more concrete printing layers, and the plane steel bars are buried in the lower layer concrete. And the upper ends of the three-dimensional conical steel bar units are fixedly connected with the top vertical rod section steel bars of the top plane steel bars on the upper layer or the higher layer or the vertical bars of the next plane steel bars, so that an integral space steel bar framework is formed. The steel plate has higher shear bearing capacity, better ductility and a better failure mode, and is suitable for load-bearing components in various building and bridge engineering.
Owner:HEBEI UNIV OF TECH

Steel truss structure for mounting door opening curtain wall

The utility model relates to a steel truss structure for mounting a door opening curtain wall. The steel truss structure comprises a fixed plate, a rib plate seat and a truss girder, the fixing plates are used for being fixed to the left inner wall and the right inner wall of a door opening through anchoring parts, and rib plate bases are vertically installed on the end faces of the fixing plates at intervals up and down. The truss girder is horizontally distributed between the two fixed plates, and the end part of the truss girder is supported between the rib plate seats which are vertically arranged at intervals in the vertical direction; the left end and the right end of the truss girder are fixed to the fixing plates respectively and fixedly connected with the corresponding upper rib plate base and the corresponding lower rib plate base at the same time. And a mounting structure for mounting a curtain wall keel is arranged on the outer side of the truss girder. The door opening lintel effectively solves the problems that an existing door opening lintel is difficult to bear a curtain wall structure, and installation and lighting of a window can be affected due to the fact that a hanging component is arranged, not only is the aim of hanging a building facade curtain wall guaranteed, but also the appearance effect and quality of a facade are achieved.
Owner:CHINA CONSTR SEVENTH ENG DIVISION CORP LTD

Construction method for turnover bailey truss supporting system of ultrahigh large-span factory building

The invention provides a construction method of a turnover bailey truss supporting system for an ultrahigh large-span factory building. An innovative solution is provided for solving the problems that a traditional construction method is low in efficiency, insufficient in safety and the like. According to the construction method, midas software is used for carrying out bailey beam stress analysis, an optimal arrangement scheme is formed, a bailey truss supporting system in modular design is adopted, through tower crane hoisting, electric hoist reshipment and precise assembly, I-shaped steel transverse distribution beams are installed on bailey truss beams, and short steel pipes are welded to prevent sideslip. In the construction process, safety is guaranteed through a digital monitoring means, and the steel bar hanging rings are embedded in the top plate structure so as to achieve follow-up segmented safe dismantling and transportation. The method has the advantages of convenient and efficient construction, repeated turnover use, reduction of redundant procedures, safe and reliable construction and the like. The method is suitable for projects such as ultrahigh large-span large-area plants in a structural form of frame columns, frame beams, secondary steel beams and steel bar truss floor support plates.
Owner:CHINA CONSTR THIRD ENG BUREAU GRP CO LTD

Intelligent hoisting equipment for suspension bridge truss girder in extreme wind environment and hoisting construction method

PendingCN121948274AEffectively offsets horizontal swingsImprove stabilitySafety gearArchitectural engineeringLattice girder
The invention belongs to the technical field of truss girder hoisting, and particularly relates to intelligent hoisting equipment for a suspension bridge truss girder in an extreme wind environment and a hoisting construction method.The intelligent hoisting equipment comprises a floating crane, and a hoisting tool component is fixedly installed at the lower end of a steel wire rope of the floating crane and comprises a posture adjusting device and an offset adjusting device. According to the intelligent hoisting equipment for the suspension bridge truss girder in the extreme wind environment and the hoisting construction method, by arranging the sling component and integrating the posture adjusting device and the offset adjusting device, multi-degree-of-freedom active adjustment can be conducted on the hoisted truss girder. The offset adjusting device generates reverse inertia force by driving the mass block to move, so that horizontal swinging of the truss girder caused by wind load is effectively counteracted; the posture adjusting device accurately corrects pitching and rolling postures of the truss girder by adjusting the length of the steel wire rope set, and therefore the overall wind resistance stability and posture keeping capacity of the hoisting system are remarkably enhanced in the extreme wind environment.
Owner:CCCC SHEC FIRST HIGHWAY ENG

Method for optimizing stability of large-span steel truss girder floating structure

The invention provides a method for optimizing the stability of a large-span steel truss girder floating support structure. The floating support structure is composed of a floating support ship, floating piers and a pressurized water tank. The pressurized water tanks comprise the counter-force pressurized water tank, the adjusting pressurized water tank and the equivalent pressurized water tank. The calculation method comprises the following steps: 1, determining a calculation working condition; 2, carrying capacity optimization design of the floating ship; 3, transverse stability optimization design of the floating ship; and 4, the longitudinal stability of the floating ship is optimally designed. According to the stability optimization method for the large-span steel truss girder floating structure, the stability design of the floating structure in the river-crossing construction process of the large-span steel truss girder through the floating-traction construction method can be provided, systematicness is high, the application range is wide, and standardization is high.
Owner:CHINA RAILWAY 15TH BUREAU GROUP CORPORATION LIMITED +2

Steel bridge inclined strut node fatigue assessment hot spot stress method based on machine learning

The invention belongs to the technical field of bridge construction, and particularly relates to a steel bridge diagonal bracing node fatigue assessment hot spot stress method based on machine learning. By constructing a hot spot stress concentration coefficient Gaussian regression process proxy model of the steel bridge inclined strut nodes, a mapping relation is established among geometric parameters of the steel bridge inclined strut nodes, welding seam type input variables and hot spot stress concentration coefficient output, so that the hot spot stress of different inclined strut nodes on different steel bridges is quickly determined. And in combination with a hot spot stress S-N curve and a random traffic flow loading method, realizing fatigue performance evaluation of the steel bridge diagonal bracing node. The method is suitable for various steel bridge structure systems including diagonal bracing nodes, including truss girders, box girders, long cantilever combined structures and the like, and has good engineering adaptability and popularization value.
Owner:HENAN JIAOTOU ZHENGZHOU EXPRESSWAY CO LTD +2

Linkage type flexible tracking truss photovoltaic support system and installation method

The invention relates to a linkage type flexible tracking truss photovoltaic support system and an installation method, and the photovoltaic support system comprises end support rotation systems disposed at two ends, and a middle support rotation system disposed between the end support rotation systems. Each end support rotating system comprises a four-foot steel vertical frame and an end truss beam, each middle support rotating system comprises a steel stand column and a middle steel beam, and a load-bearing upper cable and a load-bearing lower cable are arranged between each row of end support rotating system and the corresponding middle support rotating system; the driving device drives the end truss girders and the middle steel girders to rotate synchronously to adjust the inclination angle. The bearing capacity of the end steel beams is improved through the end truss beams, the stability of the end supports is enhanced through the four-foot steel vertical frames, and the front row and the rear row are rigidly connected through the rotating connecting rods. The whole flexible tracking support structure system end support is reasonable in stress, good in integrity and stability and large in span, rigid connection of the photovoltaic flexible support cable bodies in the front row and the rear row can be kept while rotation is conducted, and the wind resistance is high.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD

Anti-blocking structure for removing particles in ascending gas of slurry bed vacuum tower

The utility model relates to the technical field of slurry bed vacuum towers, and discloses an anti-blocking structure for removing particles in ascending gas of a slurry bed vacuum tower, which comprises a tower body, six fillers are arranged in the tower body, the six fillers are BED1, BED2, BED3, BED4, BED5 and BED6 in sequence from top to bottom, the six fillers are longitudinally arranged at intervals in sequence, and the six fillers are arranged in the tower body. The top of each of the six fillers is provided with a filler pressing ring, the bottom of each of the six fillers is provided with a filler support and a truss girder, and the BED1, the BED2, the BED3, the BED4 and the BED5 are structured fillers. A traditional four-line oil collecting tank is changed into the design that the lifting cylinders incline towards the extraction opening and are not equal in height, so that under the condition that the extraction opening is blocked, liquid is accumulated to the height of the low lifting cylinder and overflows from the low lifting cylinder, the high lifting cylinder is reserved to enable gas phase to pass, and the gas-liquid shunting function of the oil collecting tank can still be reserved; and the conditions of entrainment and blockage of the gas raising cylinder caused by gas and liquid walking in the same place are avoided.
Owner:PEI YANG NAT DISTILLATION TECH

Device for moving truss girder in construction

The device for moving the truss girder in the building construction comprises a first beam and a second beam located above the first beam, and the first beam and the second beam are connected through a jacking structure. The jacking structure comprises a first connecting seat, a second connecting seat, two first connecting rod pieces rotationally connected with the first connecting seat and two second connecting rod pieces rotationally connected with the second connecting seat, the far ends of the two first connecting rod pieces are rotationally connected with the first beam and the second beam respectively, and the far ends of the two second connecting rod pieces are rotationally connected with the first beam and the second beam respectively; the first connecting seat and the second connecting seat are in threaded connection with a driving rod, the driving rod is provided with a forward thread and a reverse thread, the forward thread is in threaded connection with the first connecting seat, the reverse thread is in threaded connection with the second connecting seat, and the driving rod can rotate to drive the second beam to be close to or away from the first beam; the two ends of the second beam are provided with two transmission wheels which are arranged in a rotating mode, and transmission chains are arranged on the transmission wheels.
Owner:ZHEJIANG XINGTU BRIDGE SPECIAL EQUIP MFG

Transfer platform for steel truss girder

PendingCN120867210ATruss-type bridgeLifting framesArchitectural engineeringTechnology research
The invention belongs to the field of building technology research, and provides a steel truss girder transfer platform aiming at the problems that an existing transfer device is large in occupied field area and multiple in transfer links, the direction of a steel truss girder cannot be kept unchanged all the time in the transfer process, and accurate splicing of the steel truss girder is affected. The hydraulic lifting brackets are arranged on two sides of the direction adjusting vehicle; the direction adjusting vehicle comprises a driving base, an operation table and a rotating assembly connected with the operation table in a matched mode. The steel truss device can be directly arranged at the starting point position of the conveying rail through the direction adjusting vehicle, direction correction can be conducted, multiple transfer devices do not need to be matched to adjust the direction of the steel truss, operation is easy and fast, a rail used for adjusting the direction of the steel truss beam does not need to be arranged, the occupied area is small, and the construction space is saved.
Owner:BEIJING MUNICIPAL ROAD & BRIDGE

Multi-camera image acquisition device for building three-dimensional model of bridge structure prefabricated part

The utility model discloses a multi-camera image acquisition device for building a three-dimensional model of a bridge structure prefabricated part, which comprises a portal steel frame and a track assembly, and the portal steel frame comprises truss columns respectively positioned on two sides of the bridge structure prefabricated part and a truss beam positioned above the bridge structure prefabricated part. The truss girder is mounted at the tops of the two truss columns; cameras are arranged on the truss columns and the truss girders at intervals to form a camera matrix which is fixed in relative position and is used for acquiring image data of the bridge structure prefabricated parts; the rail assembly comprises sliding rails arranged corresponding to the two truss columns respectively, the sliding rails are parallel to the length direction of the bridge structure prefabricated part, and the truss columns are installed on the corresponding sliding rails in a sliding fit mode. According to the multi-camera image acquisition device for building the three-dimensional model of the prefabricated part of the bridge structure, image data acquired by the cameras can be fused by fixing the position relation between the cameras, so that the three-dimensional model of the prefabricated part of the bridge structure is built.
Owner:CHINA RAILWAY ELEVENTH BUREAU GROUP FIFTH ENGINEERING CO LTD

High-performance low-cost triangular truss bailey steel bridge

This invention proposes a high-performance, low-cost triangular truss Bailey bridge, comprising an adjustable movable base, crossbeams, bridge deck, truss beams, and crash barriers. The truss beams include a first truss, a second truss, end upper chords, intermediate upper chords, and connecting blocks. Each crossbeam is internally equipped with wind-resistant tie rods and wind hooks. This Bailey bridge features a redesigned triangular truss frame; due to the difference in materials used, the strength of this triangular truss is significantly higher than that of the 200-type truss. This triangular truss Bailey bridge design can utilize standard modular components such as crossbeams, bridge decks, gap plates, wind-resistant tie rods, and wind hooks from the 200-type under-deck bridge, increasing the truss's adaptability and reducing material usage to save costs.
Owner:JIANGSU SUJIAN ROAD & BRIDGE MASCH CO LTD

A construction method of a steel column top end truss beam and inclined strut column node

The application discloses a kind of steel column top end truss girder and inclined strut column node construction method, solve how to build integral node and how to realize the technical problems of concrete pouring and vibrating at node;Integral node structure of the application can be calculated and designed by computer software, and is integrally processed and formed in factory, and the problem that node connection positioning, welding difficulty is caused by complex node form and numerous plate parts such as stiffening plate in traditional construction is solved by reserving bracket insertion framework;Two sides of the bolt and the reserved insertion framework are welded, which can solve the problem of template and steel beam connection, and ensure that the stiffness of the integral node part is not damaged;Layered concrete pouring and vibrating solve the problem of limited space caused by complex node form and numerous plate parts such as stiffening plate in traditional construction, and improve construction quality and shorten construction period.
Owner:SHANXI NO 3 CONSTR ENG

Steel structure truss beam multi-arc continuous bending tooling

The present application belongs to the technical field of truss girder bending, and particularly relates to a multi-arc continuous bending tool for steel structure truss girder. The tool comprises a tool main body, two support columns in cylindrical shape, a work station, a push hydraulic cylinder and a displacement sensor, a programmable logic controller, and a bending cutter. The top end of each support column is welded with a lifting lug and detachably inserted into the tool main body. The work station, the push hydraulic cylinder and the displacement sensor are installed on the tool main body. The programmable logic controller is electrically connected with the work station, the displacement sensor and the push hydraulic cylinder. The output end of the push hydraulic cylinder is provided with a displacement sensor and a cutter head. The bending cutter is installed on the cutter head. The two support columns are symmetrically located on both sides of the force application direction of the bending cutter. The sensing surface of the displacement sensor faces the displacement sensor. The present application adopts an intelligent springback compensation algorithm, can automatically calculate and accurately execute the compensation amount, fundamentally overcomes the dimensional deviation caused by material springback, ensures the high consistency of the batch workpiece size, and greatly reduces the dependence on the operator's experience.
Owner:SHANDONG MAGLEV TRAIN TRACK ENG CO LTD

Plate welding assembly tool and welding method thereof

The invention discloses a plate welding assembly tool and a welding method thereof. The tool comprises a plane supporting platform and a support, wherein the support is located above the supporting platform and used for fixing a truss beam of a pressing mechanism; the pressing mechanism at least comprises two groups of telescopic air cylinders or oil cylinders; a strip-shaped opening is formed in the middle of the steel structure plane pressing plate; a slotted copper liner of which the middle part is provided with a strip-shaped groove; the tool is used for butt seam welding of a plane to-be-welded plate. According to the tool, non-rigid pressing plate connection is adopted, an air cylinder piston rod is only in surface contact with the pressing plate, and the problem of insufficient local pressing caused by traditional rigid connection is solved; the shape is controlled by adopting the slotted copper gasket, a groove matching structure is arranged, and the qualification rate is greatly improved in combination with the high thermal conductivity of the gasket; the tool can be automatically matched, is matched with the repeated positioning precision of a robot welding system, is simple in structure and convenient and fast to operate, and can guarantee the assembly precision, the pressing effect and the back face forming quality at the same time.
Owner:CRRC MEISHAN CO LTD

Method and apparatus for manufacturing lattice girders from wires

PCT designated stageWO2026006868A1Wire networkWire rodLattice girder
The invention relates to a method for producing lattice girders (1) from wires, wherein the lattice girders (1) comprise: chords, with a lower chord arrangement having at least one lower chord (2), in particular two lower chords (2), and an upper chord (3) which is arranged at a specific height (H) relative to the lower chord arrangement; and at least one, in particular two, diagonal chords (4) which extend, for example, in a zigzag manner back and forth between the lower chord arrangement and the upper chord (3), wherein the wires for the chords are fed in a forward direction (V), and the at least one diagonal chord (4) is welded to the lower chord arrangement and to the upper chord (3), wherein the height (H) is adjusted to produce lattice girders of different heights. In order to achieve efficient production of lattice girders in a simple manner, according to the invention, in order to adjust the height (H) between successive lattice girders (1), a completed lattice girder (1) is positioned with a feed-side end (6) at a cutting position (5), whereupon the height (H) is adjusted, after which the completed lattice girder (1) is severed, and the severed wires are retracted in a reverse direction (R) in order to produce the next lattice girder (1) with the adjusted height (H). The invention also relates to an apparatus for carrying out such a method.
Owner:EVG ENTWICKLUNGS U VERWERTUNGS GESELLSCHAFT MBH

Truss girder and web girder parameter equivalence method and device based on deformation control

The invention provides a truss girder and web girder parameter equivalence method and device based on deformation control, and belongs to the technical field of aircraft structure design. The method comprises the steps that a mechanical model of a truss girder structure is established, and structure parameters of all pull rods in the truss girder structure are determined; constructing a deformation expression of the truss girder structure under the given load based on the structure parameters of the pull rods; establishing a mechanical model of the web beam structure, and determining structural parameters of edge strips and webs in the web beam structure; constructing a deformation expression of the web plate girder structure under the given load based on the structural parameters of the edge strip and the web plate; the deformation of the truss girder structure and the deformation of the web girder structure under the given load are kept consistent, so that a rigidity equivalent expression is obtained based on the deformation expression of the truss girder structure and the deformation expression of the web girder structure, and the equivalent relation between truss girder structure parameters and web girder structure parameters is obtained based on the rigidity equivalent expression.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Construction device of large-span steel pipe truss beam-column structure

The invention belongs to the technical field of truss beam columns, and particularly relates to a construction device of a large-span steel pipe truss beam column structure, which comprises a crane and a steel pipe truss base, a lifting seat is mounted above the crane, a truss beam column body is mounted above the steel pipe truss base, and a counterweight transverse seat is mounted at the end part, far away from the crane, of the lifting seat. Two sliding seats are arranged at the bottom of the balance weight transverse seat in a sliding mode, fixing frames are installed at the bottoms of the two sliding seats, winding steel ropes are arranged below the fixing frames, and the winding steel ropes are used for fixing a truss beam column body and lifting the truss beam column body upwards through a lifting seat; by controlling movement of the sliding seat, the fixed frame and the winding steel rope, the winding steel rope can fix multiple positions of the truss beam column body, the problem that due to the fact that the number of asymmetric structures of the truss beam column body is large, hoisting of the truss beam column body is troublesome is solved, the problem that the truss beam column body swings in the hoisting and transferring process is solved, construction of the truss beam column body is facilitated, and the construction efficiency is improved. And the safety is high.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD +1

Large and long prefabricated part sling

The invention provides a large and long prefabricated part sling which comprises two universal beams and two truss beams, the two universal beams are connected through a connecting beam, lower side lifting ropes connected with the truss beams are arranged at the two ends of the universal beams respectively, balance adjusting mechanisms are arranged on the upper sides of the universal beams, and lifting connecting mechanisms are arranged on the lower sides of the truss beams; the balance adjusting mechanism comprises a balance beam, the upper side of the balance beam is provided with a top lifting rope, and the lower side is provided with an upper lifting rope; the lifting connecting mechanism comprises an upper pressing beam, the upper side of which is provided with a bottom lifting rope and the lower side of which is provided with a sling. According to the sling for the large and long prefabricated part, the self-adaptive longitudinal slope lightweight design is suitable for offshore large-span and large-tonnage prefabricated box girder hoisting, the sling assembly and sling disassembly efficiency is high, box girder hoisting is safe and reliable, the great popularization value is achieved, the social benefit is good, and a reference function is provided for offshore large box girder hoisting.
Owner:CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP CO LTD

Aeroelastic model of truss girder and cable-stayed bridge tower

The invention relates to the technical field of bridge engineering, and particularly discloses a truss girder and cable-stayed bridge tower aeroelastic model which comprises a truss girder and a bridge tower. The truss beam is divided into a plurality of beam sections, and each beam section comprises a chord member core beam, a vertical web member core beam and a cross beam core beam; the bridge tower comprises an upper tower column core beam, two or more layers of parallel steel bar sets are installed at the bottom of the upper tower column core beam, each steel bar set comprises four steel bars, and the four steel bars extend in four directions respectively. The four lower tower column core beams are connected to the end parts of the four steel bars, and the two lower tower columns are connected to the end parts of the four steel bars; the upper tower column core beam and the lower tower column core beam are sleeved with a second outer mold. The invention aims to provide a truss girder and cable-stayed bridge aeroelastic model which is used for meeting the damping ratio requirement of the truss girder in a full-bridge aeroelastic model wind tunnel test.
Owner:SOUTHWEST JIAOTONG UNIV

A reinforcing structure between a beam column steel frame of a steel structure factory building

The utility model discloses a kind of reinforcing structures between steel structure factory building beam column steel frame, including the inclined brace component being arranged between existing steel column and existing steel frame beam, inclined brace component includes inclined brace rod, and column connecting plate and beam connecting plate being arranged at both ends, column connecting plate connects the existing steel column, and beam connecting plate connects the existing steel frame beam;Existing steel column is provided with column reinforcing plate in the region of connecting the column connecting plate, and existing steel frame beam is provided with beam reinforcing plate in the region of connecting the beam connecting plate;Adjacent the existing steel column between being arranged at factory building side wall is further provided with detachable intercolumnar rigid tie rod, and the setting height of the intercolumnar rigid tie rod is not lower than the height of column connecting plate at the position. Through the above setting, the safety and stability of the roof truss beam can be better ensured, the roof permanent load can be increased, the overall structure is simple, and the original structure does not need to be disassembled or adjusted, so the installation and construction are easy.
Owner:WUHAN HENGGUANG TECH CONSTR CO LTD

A damper device for a double-layer steel truss beam arch combined system bridge

The present application relates to a kind of damper device of double-layer steel truss beam arch combination system bridge, comprising: oil cylinder, oil cylinder two ends are connected with end bridge body and suspender respectively, piston is slidably connected in oil cylinder, piston end towards suspender is rotatably connected with pull rod, pull rod extends out of oil cylinder and is fixedly connected with outer tube, outer tube is slidably sleeved on oil cylinder;Multiple flow-through holes are opened on piston, and flow-through hole is inclinedly penetrated through piston in ring direction.The beneficial effects of the present application are: piston is arranged in damping device, piston and pull rod are rotatably connected, and the kinetic energy of damping medium is converted into friction heat by setting inclined flow-through hole, and then the energy brought by vibration is consumed, to play the role of buffering and energy consumption;Several flow-through holes are arranged on piston, and part of flow-through hole is provided with elastic pad, by setting metal sheet with different bending strength, piston is provided with elastic pad that is opened correspondingly under different vibration, so that damper can automatically adjust energy consumption effect.
Owner:ANHUI COMPREHENSIVE TRANSPORTATION RES INST CO

Design method for connecting structure of combined aqueduct with steel truss beam and corrugated water trough

The invention discloses a design method for the connection structure of a steel truss beam and a corrugated water trough combined aqueduct, belonging to the technical field of steel structure aqueducts. Based on the functional requirements, the overall structure of the connection structure of the steel truss beam and the corrugated water trough combined aqueduct is designed, and the design and calculation formulas for the height of each force-bearing part of the partition board are established, improving the refinement and design efficiency of the design; based on the principle of the overall structure and separate force-bearing, the force-bearing and stiffness calculation models of the partition board of the connection structure of the steel truss beam and the corrugated water trough combined aqueduct are constructed, and the design thickness calculation formula of the partition board of the connection structure is provided, providing a convenient and fast design method for the connection structure of the steel beam and the corrugated trough combined aqueduct; considering the influence of the opening of the partition board structure of the connection structure on the stiffness calculation, the calculation result of the stiffness calculation model of the partition board is closer to the true force-bearing state of the structure, improving the reliability of the design.
Owner:ANHUI TRANSPORT CONSULTING & DESIGN INST

Goaf slope lattice beam strain monitoring and demodulating system based on MEMS optical fiber sensing

The invention provides a goaf slope lattice beam strain monitoring and demodulation system based on MEMS optical fiber sensing, and belongs to the technical field of goaf slope lattice beam strain monitoring and demodulation. In order to solve the technical problems that an existing lattice beam monitoring system can only measure physical quantity in one direction, cannot achieve full-time coverage and cannot monitor dynamic and static strain of a lattice beam at the same time in measurement, the adopted technical scheme is that balls capable of rotating are arranged at the top and the bottom of a first rolling screw and the top and the bottom of a second rolling screw; the first rolling screw and the second rolling screw can roll on a first rolling screw limiting groove formed in the horizontal direction through the balls, and the first rolling screw and the second rolling screw are connected and fixed through a first connecting rod. A first spiral compression spring is arranged in the first spring limiting groove, and a second spiral compression spring is arranged in the second spring limiting groove. The method is applied to goaf slope lattice girder strain monitoring.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

Method of hoisting a cable crane

The present application relates to the technical field of bridge construction, and provide a kind of hoisting method and hoisting system of cable crane, the hoisting method of cable crane includes: by two the trolley respectively two running mechanisms are moved to the upper of main cable using lifting point conversion mode, two running mechanisms are connected to the set position of main cable;By two trolley respectively two main girder section is moved to the upper of running mechanism using lifting point conversion mode, two main girder sections are connected to running mechanism respectively;By two trolley cooperation, intermediate truss girder is lifted to between two main girder sections, and two ends of intermediate truss girder are connected to main girder section respectively;Two cable winding machines are lifted to corresponding running mechanism respectively, and two cable winding machines are connected to corresponding running mechanism;The present application can be applicable to the portal frame with smaller structure and without sliding system in the early design stage, increase the application range and versatility of hoisting system.
Owner:CHINA RAILWAY JIUJIANG BRIDGE ENG +1

Carbon capture tower and method for making carbon capture tower

The invention provides a carbon capture tower and a method for manufacturing the carbon capture tower, and the carbon capture tower comprises a carbon capture tower body and a filler layer arranged in an inner cavity of the carbon capture tower body, and further comprises a truss girder arranged in the inner cavity of the carbon capture tower body, the truss girder is positioned at the lower end of the packing layer and is used for supporting the packing layer; the node connecting pieces are fixedly arranged at the two ends of the truss girder and fixed to the inner wall of the carbon capture tower body, the truss girder serves as a core supporting component and is directly located at the lower end of the packing layer to form a rigid supporting face, and the truss girder and the inner wall of the carbon capture tower body are fixedly connected through the node connecting pieces. According to the arrangement, holes do not need to be formed in the wall of the carbon capture tower body, and the structural integrity of the carbon capture tower body is reserved.
Owner:CHINA ENERGY LONGYUAN ENVIRONMENTAL PROTECTION CO LTD