21 results about "Lattice girder" patented technology

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.

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.

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.

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.

This invention provides a concrete formwork device suitable for backfilling over-excavated slopes in reservoir basins, belonging to the field of hydraulic engineering technology. The device includes a trolley assembly, a main truss beam, a first lifting arm, two auxiliary truss beams, a formwork beam structure, a second lifting arm assembly, and a formwork assembly. The trolley assembly includes a first trolley and a second trolley; the main truss beam is connected between the first and second trolleys; the first lifting arm is mounted on the second trolley, and its telescopic end is connected to the main truss beam for driving the main truss beam to rise and fall and adjust its inclination angle; the two auxiliary truss beams are installed on the main truss beam; the formwork beam structure is installed between the two auxiliary truss beams; the second lifting arm assembly is installed on the formwork beam structure; and the second lifting arm assembly is connected to the formwork assembly for driving the formwork assembly to press against the bedrock surface of the over-excavated area of ​​the slope. This invention improves the versatility for different slope gradients and over-excavated areas of different scales.

This utility model discloses a flexible cable structure for a double-row linked tracking flexible photovoltaic support system, relating to the field of flexible photovoltaic support technology, including a support frame mechanism. This application provides a flexible cable structure for a double-row linked tracking flexible photovoltaic support system. The cable body is reliably connected to the truss beam through anchors. The cable bodies are connected by a spatial three-dimensional support frame mechanism. In the support frame mechanism, the top frame, crossbeams, and connecting ribs form an inverted triangular pyramid structure. Combined with the diagonal reinforcing ribs and flexible cable layout, it can effectively resist lateral forces and distribute loads, forming a stable spatial force-bearing system. This application innovatively achieves the arrangement of double-row photovoltaic modules along the array direction. This layout significantly increases the power generation capacity per unit area without increasing excessive structural weight. The rigid connection design of the end supports combined with the flexible cable layout ensures structural force transmission stability while achieving a large-span, highly adaptable photovoltaic module arrangement.

The utility model discloses a kind of tunnel leveling layer concrete pouring walking chute, including blanking chute and support frame, the support frame includes truss beam and support leg, blanking chute feed inlet one end is hinged fixed with the front beam body of truss beam, blanking chute discharge one end is hanged below the beam body of the rear part of the middle of truss beam by lifting device driven by winch device, the bottom of support leg is fixed with walking wheel. A kind of tunnel leveling layer concrete pouring walking chute provided by the utility model, only needs to be according to concrete transport truck discharge port height and pouring height, the telescopic length of telescopic material receiving chute can be adjusted to meet the requirement of leveling layer concrete moving material pouring;And small, easy to make;With the characteristics of reasonable structure, simple production, low cost, repeated use.

The application discloses a machine room module and a data center. The machine room module comprises a steel structure frame and a plurality of temporary steel supports. The steel structure frame comprises opposite top frames, bottom frames and columns. A plurality of first connecting pieces are arranged on the top main beams, and a plurality of second connecting pieces are arranged on the bottom main beams. Each adjacent two first connecting pieces are provided with a second connecting piece. The two ends of the temporary steel supports are connected with the first connecting pieces and the second connecting pieces respectively, and two temporary steel supports are connected with the same first connecting piece or second connecting piece. According to the scheme, the temporary steel supports, the top main beams and the bottom main beams of the steel structure frame form truss beams. Through the temporary reinforcement measures of the truss beams, the deformation of the steel structure frame in the transportation and hoisting process can be effectively reduced. Moreover, the steel structure frame can effectively resist the horizontal force in the transportation and hoisting process, thereby preventing the swinging caused by the excessive weight of the top part in the transportation process and further preventing the destructive deformation of the machine room module.

This invention relates to the field of truss processing technology, and in particular to a truss bridge incorporating this mechanism. The mechanism includes support frames at both ends and placement slots on the support frames. It further includes: a fixed rod, fixedly installed on one side of one of the support frames; a sliding frame, slidably installed at its bottom on the outside of the fixed rod; a sliding bracket, slidably installed inside the sliding frame on both sides of the truss; a grinding plate, fixedly installed on the sliding bracket near one end of the truss, designed in an L-shape, and movably abutting against the truss surface; and a driving assembly, located inside the sliding frame, for moving the two grinding plates. The truss connection mechanism provided by this invention drives a rotating plate to rotate via a rotating shaft. By utilizing the sliding engagement between the movable slots at both ends of the rotating plate and the positioning rod at the top of the sliding bracket, the sliding brackets on both sides can be synchronously moved closer or further apart, thereby achieving synchronous approach or distance of the two grinding plates. This ensures the grinding effect while avoiding damage to the truss surface caused by rigid contact.

This utility model relates to a rotatable safety guardrail, comprising: a first bracket, spaced apart and installed on one side of a truss beam; a flat plate laid on the bracket; a guardrail, its lower side hinged to the outer end of the bracket; a first hinge support, fixed to the outer side of the guardrail's upright; a connecting rod, its upper end hinged to the first hinge support; a hydraulic jack, laterally fixed to the side of the truss beam, located below the first bracket; and a second hinge support, fixed to the piston end of the hydraulic jack and hinged to the lower end of the connecting rod. This utility model enables vertical rotation, facilitating the leveling of the guardrail so that it can pass under the concrete slab during subsequent slipform operations.

This invention discloses an adaptive segmental beam bridge erecting machine compatible with multi-span combinations and its construction method. The bridge erecting machine includes: a main beam, comprising: two truss beams and two end cross braces; the truss beams have a triangular cross-section, including connecting sections at both ends and several standard sections between the two connecting sections; a longitudinal track is fixedly provided at the upper end of the truss beam along its length; front and rear support legs are detachably located at the bottom ends of the main beam; a middle support leg is located at the bottom end of the main beam and between the front and rear support legs; there are at least four middle support legs, used to support the main beam and / or drive the main beam to travel along the construction direction; two overhead cranes and two auxiliary cranes are all located at the upper end of the main beam via the longitudinal track and can move back and forth along the construction direction; the two overhead cranes are located between the two auxiliary cranes to collaboratively complete the hoisting of multiple segmental beam blocks. The bridge erecting machine of this invention can achieve adaptive and seamless switching of various complex span combinations.

This utility model discloses a UHPC inverted fish-belly prestressed truss bridge, comprising two sets of oppositely arranged inverted fish-belly truss beams, multiple support legs connected to the inner side of the inverted fish-belly truss beams, a bridge deck supported on the support legs, and transverse connectors for connecting the two sets of inverted fish-belly truss beams. The bridge deck is connected to the inverted fish-belly truss beams by cast concrete. The inverted fish-belly truss beams, support legs, bridge deck, and transverse connectors are all cast from UHPC. The UHPC inverted fish-belly prestressed truss bridge provided by this utility model features prefabricated structure, high strength, high toughness, light structural weight, and low maintenance.

The present invention relates to a retaining rail (1) for receiving sections of a piping (2) of a concrete core activation element (3), comprising (a) two longitudinal elements (4, 4') extending parallel and spaced apart from each other in the longitudinal direction of the retaining rail (1), which have a plurality of pipe receptacles (6) arranged in pairs opposite each other on the respective longitudinal elements (4, 4'), extending transversely in the longitudinal direction of the retaining rail (1) and each open to the same side; (b) a plurality of connecting elements (5, 5') arranged between the longitudinal elements (4, 4'), which connect the longitudinal elements (5, 5') to each other;and (c) a plurality of spacer elements (7, 7') which define the distance between the pipe receptacles (6) and a wall of the space to be tempered by the concrete core activation element (3), wherein the retaining rail (1) is characterized according to the invention in that the spacer elements (7, 7') are arranged in two sets, one set of spacer elements (7) defining a different distance between the pipe receptacles (6) and a wall of the space to be tempered by the concrete core activation element (3) than the other set of spacer elements (7'). Furthermore, the present invention relates to a concrete core activation element (3) comprising at least two retaining rails (1) according to the invention, a piping system (2) which is sectionally received into the pipe receptacles (6) of the retaining rails (1), and at least one lattice girder mat (1) applied to the retaining rails (1).

The present application relates to the technical field of construction machinery, and discloses a box girder concrete vibrating device, which comprises a truss girder, a longitudinal walking mechanism arranged at the lower part of the truss girder, a crane frame, a vibrating motor arranged at the lower part of the crane frame, and a vibrating rod; the longitudinal walking mechanism can drive the vibrating device to longitudinally displace above the prefabricated box girder; the vibrating rod is an execution component for vibrating concrete; the crane frame is at least two, the vibrating motor is arranged at the lower part of the first crane frame, and the middle section of the vibrating rod is connected with the second crane frame; the output shaft of the vibrating motor is connected with one end of the vibrating rod; the crane frame is connected with the truss girder and can laterally displace below the truss girder. The present application has the beneficial effect that the working end length of the vibrating rod is automatically adjusted, thereby realizing automatic up-and-down pulling and inserting operation and efficiently vibrating the concrete in the horizontal plate and web plate of the prefabricated box girder.

The present application relates to a kind of steel sleeve box formworks for water group pile concrete deck, including side mould, bottom plate and truss beam three parts, bottom plate is made of middle main rectangular frame and two sides auxiliary rectangular frame and is spliced into "*" type, truss beam is spliced into circle by special-shaped truss beam, side mould is divided into upper and lower side mould, and both are spliced by multiple arc-shaped side moulds.The bottom plate of the steel sleeve box formwork of the present application adopts detachable bottom plate structure, when bottom plate is removed, bottom plate frame height can be lowered using lifting device, leaving construction operation platform, which can save engineering materials, and is also beneficial to the convenience of bottom plate removal operation, and truss beam and side mould are both assembled structure, the overall performance requirement of the steel sleeve box formwork of the present application to lifting equipment is relatively small.

This utility model discloses a connection node between a composite column and a steel truss beam. The composite column has a transverse H-shaped steel beam end and an inclined box-shaped web member end welded to its steel pipe. The box-shaped web member end is directly below the H-shaped steel beam end and the two are welded together. A steel beam positioning plate and a steel beam connecting plate are provided at the end of the H-shaped steel beam end away from the composite column, and a web member positioning plate is provided at the end of the box-shaped web member end away from the composite column. A transverse beam top reinforcement plate is welded to the steel pipe near the top of the H-shaped steel beam end. Several transverse grooved reinforcement plates are welded circumferentially around the steel pipe. Vertical web member side reinforcement plates are welded to the left and right sides of the box-shaped web member end, a vertical web member bottom reinforcement plate is welded to the bottom of the box-shaped web member end, and a transverse web member front reinforcement plate is welded to the front of the box-shaped web member end. This node can form a truss load-bearing system to distribute the load, control installation deviations, and ensure the positional accuracy of the outer layer of reinforcement in the composite column.

The utility model discloses a cantilever underhanging formula steel hanger body for decorating curtain, including structural shear wall, the bracket structural shear wall is connected with truss beam, the outside welding of truss beam has vertical main keel, vertical main keel is connected with longitudinal main keel, both perpendicular settings, every longitudinal main keel all welds 2 20# channel steel, 20# channel steel is fixedly connected with the decoration curtain secondary keel through stainless steel bolt, cantilever structure combines vertical and longitudinal main keel and forms stable frame, can effectively disperse decoration curtain load, strengthens the stability under the action of wind, earthquake and other external force, cantilever formula design does not occupy indoor space, will not reduce indoor net height, is favorable to the reasonable planning and use of building indoor space, promotes space comfort degree and functionality, and each part can be prefabricated in the factory, and the on -the -spot is assembled, reduces the high altitude operation amount, improves construction efficiency, shortens the period of construction, reduces construction cost and safety risk.

To provide a horticultural house with an end-face truss beam, which is capable of resisting wind pressure acting from the end-face direction of a connective horticultural house, which can also serve as a training beam, and which allows reduction of building costs.SOLUTION: A horticultural house with an end-face truss beam 8 is provided, wherein, below the valley portion of the end face of a connective house, an outer chord 8a of the end-face truss beam 8 is provided in the horizontal direction along the entire width of an end face 9 in contact with end columns 6, an inner chord 8b is disposed parallel to the outer chord 8a, and lattices 8c are arranged between the outer chord 8a and the inner chord 8b so as to form one or more consecutive triangles, symmetrically on both sides from the ridge center toward the valley and the sides, thus configuring the structure of the end-face truss beam 8 relative to the end face.SELECTED DRAWING: Figure 1

The present application relates to a kind of mountainous area long-span cable-stayed bridge tower area truss beam reverse construction method, first bracket is installed in cable tower lower crossbeam, then the crossbeam of lighter weight is hoisted to bracket using tower crane, and is installed in place by sliding, using crossbeam as bridge deck crane assembly platform, the installation of bridge deck crane is completed in advance, then the longitudinal beam of heavier weight is hoisted using bridge deck crane, and the installation of tower area truss beam is completed.The present application can effectively solve the problem that longitudinal beam of tower area truss beam cannot be hoisted when there is no large hoisting equipment in mountainous area.

The utility model discloses a compacted soil soil column preparation device, including the bottom plate, a pair of threaded vertical rods is connected perpendicularly on the bottom plate, a pair of threaded vertical rods are equipped with truss beam, and truss beam is fixed on a pair of threaded vertical rods through two pairs of fixed nuts. Threaded holes are arranged in the middle of truss beam and are connected with screw threads, and the bottom end of screw rod is fixed with support bearing. The bottom surface of support bearing is fixedly connected with circular steel plate, and the bottom surface of circular steel plate is fixedly connected with ejector rod. The bottom of circular steel plate is also vertically fixedly connected with fixing frame, and the side of fixing frame close to ejector rod is provided with digital display displacement meter. The end of telescopic rod of ejector rod is fixedly connected with circular pressing plate, and soil column cylinder is placed on the bottom plate below circular pressing plate. The problem that the compaction density cannot be accurately controlled in the prior art, resulting in poor uniformity of the prepared soil column, is solved.

The present invention relates to a method for the optimized design and fabrication of a three-dimensional, self-supporting truss girder based on multi-axis 3D printing and to the technical field of civil engineering. The method comprises the following steps: detection of a curved print surface of a given structure, integrated structural optimization, and integrated fabrication using 3D printing. Advantageous effects of the invention: Optimization results from traditional layout and geometry optimizations are used as initial values ​​to obtain the optimized structure and its corresponding print surface, and the print surface of the optimized structure is determined by an optimization problem for the local print directions. Through an integrated optimization process that simultaneously adjusts the structure and the print surface, overhanging components are eliminated or their number is reduced.An iterative semi-integrated method is proposed to improve the quality of the initial solution of the integrated optimization problem, thereby reducing the number of overhang features in the structure and realizing the optimized design of a three-dimensional self-supporting truss girder for multi-axis 3D printing.