58 results about "Beam length" patented technology

The invention discloses a composite beam plastic flexural capacity correction calculation method considering interface slippage. The method is suitable for a hogging moment area of a steel-concrete composite beam reinforced by an external prestress carbon fiber reinforced composite material rib. The method comprises the following steps: firstly, determining basic static boundary parameters and a shear connector constitutive model; in the iterative calculation, solving a temporary bearing capacity by utilizing an axial force and moment balance equation, and calculating interface slippage along the beam length and a deformation loss item at the support based on internal force distribution; then determining a rigidity degradation coefficient according to the average slip amount, and dynamically reducing the static yield bending moment to reconstruct the plastic hinge length; and finally, constructing a corrected deformation coordination equation, deducting a deformation loss item in geometric deformation calculation to obtain the real elongation of the in-vitro CFRP rib, and updating a stress parameter until a result is converged. According to the method, by introducing a deformation loss item and a rigidity degradation mechanism, deviation caused by traditional rigid connection assumption is corrected, and accurate prediction of the ultimate bearing capacity is achieved.

This application relates to the field of weighing sensors, and more particularly to a weighing sensor with variable sensitivity. The weighing sensor includes a frame, a curved clamp, a curved cantilever beam, a fixed magnet, a cantilever beam magnet, and a force display device. The curved clamp is mounted on the frame, one end of the curved cantilever beam is disposed within the curved clamp, and the other end of the curved cantilever beam is provided with a cantilever beam magnet. The fixed magnet is mounted on the frame and positioned above the cantilever beam magnet. The cantilever beam magnet is attracted by the fixed magnet, causing the curved cantilever beam to bend upwards. The force display device is mounted on the frame. The upward bending of the curved cantilever beam under the magnetic force of the two sets of magnets changes the effective length of the beam. When used for weighing, the curved cantilever beam moves downwards under a loaded load, changing its effective beam length, and simultaneously the magnetic force changes. This nonlinear stiffness structure achieves the function of variable sensitivity.

The present application relates to a kind of curved bridge PC precast beam pedestal and its wedge block adjusting device and construction method, pedestal includes concrete fixed pedestal, its both ends are provided with steel pedestal, steel pedestal includes beam length adjusting block, mobile pedestal, mobile pedestal end close to beam length adjusting block is provided with reserved notch, wedge block adjusting device is installed in this reserved notch, lower seat plate of wedge block adjusting device is fixed on the ground between two longitudinal tracks, the upper edge of apron is connected with the panel of mobile pedestal and beam length adjusting block, the lower surface of the panel of mobile pedestal and the panel of beam length adjusting block is attached to the upper side of the stop mortar pad plate outside apron, the ball hinge bolt is installed in the four corner positions of the upper seat plate and the lower seat plate of the wedge block adjusting device, and spherical support is provided in the center;The method is according to the steel pedestal part of beam length adjustment, after the wedge block adjusting device part is tightly blocked, concrete is poured;Before tensioning, lower lifting pedestal, avoid beam end splitting.

The invention discloses a reinforced beam bending resistance analysis method considering a material constitutive whole curve, and relates to the technical field of civil engineering structure performance calculation, and the method comprises the following steps: identifying and recording the position of a main crack in a reinforced beam; dispersing the reinforced beam into N reinforced beam units connected end to end according to the position information of the main crack; calculating a bending moment-curvature relation of each beam unit according to input information of a material constitutive relation, a component size and a reinforcement form in each beam unit; and determining bending moment distribution along the length direction of the reinforced beam, calculating curvature distribution along the length of the beam according to the bending moment value and the bending moment-curvature relation on each beam unit, and performing integral calculation on the curvature distribution to obtain deformation distribution and a load-deflection curve of the reinforced beam. According to the method, a stress-strain whole-process nonlinear relation is adopted as a material constitutive relation, sensitivity analysis of key design parameters of the beam on the bending resistance of the beam and efficient calculation of the bending resistance of the reinforced beam can be achieved, and a reliable method is provided for design of a novel civil engineering structure.

The utility model belongs to the field of buildings, and particularly relates to a beam bottom infilled wall constructional column steel bar pre-embedding mold. Comprising beam side formworks, a beam bottom main formwork, combined formworks, fixing keels and positioning structures, the combined formworks and the beam bottom main formwork are arranged between the two sets of beam side formworks side by side in the beam length direction, and the multiple fixing keels are arranged on the lower sides of the combined formworks at intervals in the beam length direction and fix the combined formworks, the beam bottom main formwork and the beam side formworks; the positioning structure is arranged on the lower side of the fixed keel, positioning holes for positioning the steel bars are formed in the combined formwork, auxiliary positioning holes are formed in the positioning structure, and the steel bars sequentially penetrate through the positioning holes and the auxiliary positioning holes in the vertical direction. The combined formwork and the beam bottom main formwork are arranged between the beam side formworks side by side, the positioning holes for positioning the reinforcing steel bars are formed in the combined formwork, the auxiliary positioning holes are formed in the positioning structure, and the positioning holes and the auxiliary positioning holes are vertically and concentrically formed, so that the positions of the reinforcing steel bars are determined, the reinforcing steel bars are fixed, and displacement is avoided.

The utility model discloses a highway side slope drainage anchor rod frame beam, including crossbeam, longitudinal beam, transverse water intercepting rib, vertical water intercepting rib, drainage wedge and anchor rod, crossbeam and longitudinal beam perpendicular each other and form the grid frame beam main body fixed on the highway side slope, transverse water intercepting rib sets up on the crossbeam upper surface, and along crossbeam length direction extension, with crossbeam is integrative pouring and forms structure, vertical water intercepting rib sets up on the longitudinal beam upper surface, and along longitudinal beam length direction extension, with longitudinal beam is integrative pouring and forms structure, drainage wedge sets up in the higher side of crossbeam, and anchor rod one end anchors in the inside of side slope, and the other end passes through longitudinal beam and is fixed with longitudinal beam, and anchor rod along the grid edge of frame beam main body evenly distributes. This anchor rod frame beam structure, utilizes water intercepting rib and drainage wedge cooperation high -efficient drainage, can exclude the water in the frame, the surface precipitation on the frame beam body and part from the platform and scatter to the surface water in the frame beam body range, combines anchor rod steady support, effectively promotes the drainage capacity of anchoring side slope, strengthens its stability, guarantees the highway traffic safety.

This invention discloses a segmental precast steel pin diaphragm UHPC box girder and its construction method. The girder includes a UHPC box-shaped outer shell, within which are arranged multiple longitudinal structural steel bars extending along the beam length and spaced apart. Inside the UHPC box-shaped outer shell are multiple steel transverse diaphragms arranged at intervals along the beam length. The edges of the steel transverse diaphragms are fitted against the inner wall of the UHPC box-shaped outer shell. Multiple steel pin structures are connected to the steel transverse diaphragms to form steel pin-type diaphragms. Each steel pin structure is arranged at intervals along the edge of the steel transverse diaphragm and is embedded in the UHPC box-shaped outer shell, engaging with it. This segmental precast steel pin diaphragm UHPC box girder has the advantages of simple structure, low steel consumption, and low cost.

The utility model discloses a movable hanging basket, and belongs to the technical field of hanging baskets. A movable hanging basket comprises a folding hanging basket body, the folding hanging basket body is telescopically provided with a hanging piece used for being hung between the top walls of adjacent piece beams in the vertical direction, and a plurality of auxiliary supporting pieces making contact with the side walls of the adjacent piece beams are arranged on the two sides of the folding hanging basket body. Through the cooperative arrangement of the moving assembly and the auxiliary supporting piece, the hanging basket can stably move in the length direction of the sheet beam, the operation range of constructors is expanded, the constructors can easily conduct construction at different positions, the position of the hanging basket does not need to be frequently replaced, and therefore time and labor cost are saved, and construction efficiency is improved. The adjusting assembly is used for locking the moving assembly, it is ensured that the hanging basket can move according to requirements, the moving assembly can be locked and unlocked, and the stability and safety of the hanging basket are improved.

This application relates to the field of bridge engineering construction technology, and proposes a semi-prefabricated steel and UHPC shell prestressed continuous composite beam and its construction method. The semi-prefabricated steel and UHPC shell prestressed continuous composite beam includes: a continuous beam, including a positive bending moment zone and a negative bending moment zone; steel beams arranged along the entire length of the continuous beam, or only along the positive bending moment zone; a UHPC shell, located in the lower part of the negative bending moment zone; precast slabs, including precast slabs for the positive bending moment zone and precast slabs for the negative bending moment zone, applied to the upper part of the continuous beam; shear connectors, located on the upper flange of the steel beam; concrete, filling the interior of the UHPC shell; embedded parts, for connecting with the precast slabs in the negative bending moment zone; grouting connection zones, formed on the precast slabs and corresponding to the positions of the shear connectors and embedded parts; and prestressing tendons, arranged along the beam length of the continuous beam or only in the negative bending moment zone. This enables rapid, safe, and green construction of steel and concrete continuous composite beam bridges.

The utility model relates to the technical field of hoisting equipment, and discloses a modularized hoisting tool which comprises a main lifting hook, the main lifting hook is connected with a primary bearing beam through a main lifting rope, the bottom of the primary bearing beam is provided with a plurality of secondary bearing beams through auxiliary lifting ropes, and the secondary bearing beams are arranged at intervals in the length direction of the primary bearing beam. A hoisting rope is arranged at the bottom of each secondary bearing beam; according to the utility model, the hoisting efficiency can be improved, the quality can be ensured, the potential safety hazard during construction operation can be reduced, the installation operation cost is saved, the structure is simple, the operation is simple and convenient, and the practicability is strong.

The utility model discloses a counter-force device used for slant bearing capacity detection, which comprises a support, a counter-force beam, a ground anchor, a jack and a batter pile, the support comprises a first support mechanism and a second support mechanism, a set interval is arranged between the first support mechanism and the second support mechanism, the batter pile is arranged between the intervals, and the counter-force beam is connected with the ground anchor. The ground anchors are installed on the periphery of the first support mechanism and the periphery of the second support mechanism respectively in a supporting mode, one end of the counter-force beam in the length direction is installed on the first support mechanism in a rotating mode, the other end of the counter-force beam in the length direction is installed on the second support mechanism in a lifting mode in the vertical direction, and the jack is installed on a beam arm of the counter-force beam. And the jack and the inclined pile are leveled through a cushion block. The upper limiting rod and the lower limiting rod are used for fixing the left end of the counter-force beam, rotation of the counter-force beam at any angle is achieved by adjusting the height of the left end of the counter-force beam, and when the counter-force beam rotates to be parallel to the top face of the inclined pile, the jack is installed for inclined bearing capacity detection. Lifting of the screw rod can drive lifting of the left end of the counter-force beam, so that the detection requirements of different inclination angles are met, the defect that a pile body needs to be damaged in previous detection is overcome, and bearing capacity detection is more convenient and efficient.

The double-shaft positioning structure comprises X-axis guide rails and longitudinal beams, the two guide rails are arranged in the same vertical plane in parallel, the two longitudinal beams are arranged on the two X-axis guide rails in a sliding mode, T-shaped grooves are formed in the side faces, away from the X-axis guide rails, of the longitudinal beams in the length direction of the longitudinal beams, and sliding plates are arranged in the T-shaped grooves in a sliding mode. Connecting columns are fixedly arranged on the side faces, away from the X-axis guide rails, of the sliding plates. According to the double-shaft positioning structure and the towel rack, the towel rack body is arranged on the double-shaft positioning structure, the longitudinal beam of the double-shaft positioning structure can horizontally move along the X-shaft guide rail, the sliding plate for fixing the towel rack body can vertically move in the T-shaped groove of the longitudinal beam in the vertical direction, and when the towel rack is used, the towel rack body can be adjusted to a proper position; when the towel rack is not used, the towel rack body is lifted to be close to the ceiling position of a bathroom, space is not occupied, and collision with the towel rack is prevented.

A tensioned construction beam comprises a main longitudinal body defining a beam length and opposite longitudinal ends. The main longitudinal body includes a tubular part extending along the beam length and defining a cavity therein that is circumscribed by an inner wall of this tubular part. One or more steel cables extend within the cavity along the beam length and are embedded therein via grout filling the cavity. The one or more steel cables have been submitted to a tension force prior to being embedded and released from this tension force such that the tension force is applied to the main longitudinal body.

The invention belongs to the technical field of transformer substation construction, and provides a factory pre-welding transformer substation lattice type framework rectangular beam construction method and a rectangular beam, and the method comprises the following steps: respectively establishing function relations between the transportation cost, the installation difficulty, the structural stability, the weight and the volume, the structural rigidity, the construction feasibility, the material utilization rate and the beam length; scoring the value of the length of the precast beam according to each function relationship, and obtaining a comprehensive evaluation score according to a plurality of scoring results; determining a final beam length value according to the comprehensive evaluation score; according to the determined final beam length value, a plurality of prefabricated rectangular beams are manufactured in a welding mode; when the length of the precast beam is determined, the requirements of transportation cost, installation difficulty, structural stability, weight, size, structural rigidity, construction feasibility, material utilization rate and the like are considered, and the purposes of reducing the transportation cost, reducing the transportation difficulty, improving the stability, reducing the installation difficulty and the like can be achieved.

The utility model discloses a kind of end mould fixed subassembly, including end mould fixing part;End mould fixing part is along the longitudinal direction of end mould and is located at the outside of end mould, and is detachably connected with the end mould;The top of the end mould fixing part is respectively detachably connected with side mould back frame, and the bottom of the end mould fixing part is detachably connected with bottom mould.The utility model also discloses a formwork system comprising end mould fixed subassembly.The end mould fixed subassembly provided by the utility model can determine the connection position of end mould fixed subassembly and side mould back frame according to the length variation range of the beam to be prefabricated, satisfy the prefabricated construction of any beam length, ensure the accurate and reliable of end mould fixed position, and thus ensure the dimensional accuracy of beam body forming.

The utility model provides a prefabricated column connecting structure in a beam-column joint, and belongs to the field of fabricated buildings, the structure comprises an upper prefabricated column, a lower prefabricated column and a prefabricated beam, an anti-shearing piece is embedded in the end, close to the beam-column joint, of the prefabricated beam, and the prefabricated beam is at least provided with an anti-bending bottom bar, an anti-bending surface bar and a stirrup which are separated from the anti-shearing piece in the beam length direction; the anti-bending bottom bar is embedded in the bottom of the precast beam, the anti-bending surface bar is located on a post-cast laminated surface layer of the precast beam, and the stirrup is connected to the anti-bending surface bar and the anti-bending bottom bar; the prefabricated beam is arranged at the top of the lower prefabricated column through the shear-resistant piece, and the anti-bending bottom rib is fixed to the side portion of the lower prefabricated column; the upper prefabricated column is supported on the lower prefabricated column through the in-column main reinforcements of the upper prefabricated column and / or the in-column main reinforcements of the lower prefabricated column. Connection of the upper prefabricated column and the lower prefabricated column is achieved through mutual supporting in the beam column joints, visual inspection can be achieved, and the problems that grouting sleeve prefabricated columns are not accurate in alignment, not full in grouting and difficult to detect are thoroughly solved.

The present disclosure describes a microfabricated intravascular device configured for high axial strength, while the microfabricated intravascular device also maintains effective flexural flexibility. A pipe member includes a series of circumferentially extending rings that are interconnected by a series of axially extending beams. The transverse cutouts separate and define the rings. A series of axial cutouts are aligned with the beam and extend partially from the beam into the adjoining ring such that the beam length is nested partially within the axial length of the adjoining ring. This increases the functional length of the beam to provide flexural flexibility while still having sufficient ring structure to provide effective axial stiffness.

The present disclosure describes a microfabricated intravascular device configured for high axial strength while also maintaining effective bending flexibility. A tubular member includes a series of circumferentially extending rings interconnected by a series of axially extending beams. Transverse cuts separate and define the rings. A series of axial cuts are aligned with the beams and extend partially from the beams into the adjoining rings such that the beam length is partially nested within the axial length of the adjoining rings. This increases the functional length of the beams to provide bending flexibility while still having sufficient ring structure to provide effective axial stiffness.

The utility model discloses a kind of outer inclination curtain wall systems, including horizontal connecting component and first curtain wall glass;The horizontal connecting component is horizontally arranged along beam length direction, including horizontal connecting piece, pressing plate and buckling plate;Wherein horizontal connecting piece includes base and rotating member;The inner side of base is fixed with beam;The base is connected with pressing plate;The upper portion of the outer side of base is rotatably connected with the inner end of rotating member, and the outer end of rotating member is equipped with first upper rubber strip;The upper portion of the inner side of pressing plate is connected with second upper rubber strip;The upper space of installing first curtain wall glass is formed between the outer end of rotating member and pressing plate, the lower edge of first curtain wall glass is inserted into upper space, and the lower edge of first curtain wall glass is respectively pressed tightly with first upper rubber strip and second upper rubber strip on both sides;The buckling plate is fixed on the outer side of pressing plate.The utility model has the beneficial effects that: design rotating member, by matching base, curtain wall system of different outer inclination angle can be adapted, and it is strong in versatility, and it is high in economy.

This utility model discloses a high-speed railway single-track beam storage shared device that can be quickly converted, including a beam storage platform and a support structure set on the beam storage platform. The beam storage platform includes a double-track beam storage platform and a single-track beam storage platform set between the double-track beam storage platforms. It utilizes the space between the traditional double-track beam storage platforms. The supports are movably arranged on the top of the beam storage platform and grouped to support the bottom of the precast box girder. This allows the overall beam storage method to change from the traditional two sets of box girders to the parallel storage of three single-track box girders in a limited space. At the same time, it can adapt to changes in beam length and width, solve the beam storage problem of complex and numerous beam types in special beam yards, save land in precast beam yards, reduce construction costs, and improve economic efficiency. Moreover, the single-track beam storage platform is set higher than the double-track beam storage platform, which facilitates the subsequent retrieval of box girders on the single-track beam storage platform, reduces the possibility of wing plate collision during box girder hoisting, and improves the safety of box girder hoisting.

The utility model relates to the prefabricated beam production construction technical field, and disclose the prefabricated beam outer end adjustable formwork device of adapting beam length change, including main formwork frame, the both ends of main formwork frame are distributed with outer end formwork frame, the outer end formwork frame includes end frame, the outer wall of end frame is fixed with end support frame, the bottom of end support frame is fixed with end channel steel slide rail. The utility model discloses through main formwork frame and both ends outer end formwork frame composition, its outer end formwork frame can according to different prefabricated beam manufacturing demand carry out supplementary adjustment change, cooperate the both sides hydraulic tank drive of the end frame of both ends and carry, form both ends synchronous or separate unfolding regulation and control, along with end channel steel slide rail in the production site sliding adjustment telescopic, can match different beam length size, through hoist wedge block formwork and post splicing butt joint stability, form different adjustment length process, and the adjustment process does not need personnel frequent operation, saves manpower, promotes overall production efficiency.

The application discloses a railway simply supported beam curve arrangement checking method based on a plane line position, and belongs to the technical field of bridge engineering in the transportation industry. The method comprises the following steps: solving the equation of the line position in the plane graph; specifying the actual mileage of the starting point of the line position in the graph; solving the coordinates of the line position corresponding to any mileage in the graph; finding the coordinate point of the pier center mileage of the bridge on the graph; determining the position of the beam according to the offset distance, beam width, beam length, line spacing and beam joint increment; checking the offset angle on the graph and comparing it with the calculated offset angle; checking whether the minimum beam joint on the graph meets the requirements. The application provides a lofting method of the simply supported beam on the curve. The calculation result of the curve arrangement is displayed on the plane graph, so that the designer can intuitively feel the error between the calculation value and the field measured value, and the system error of the program cannot be found by only checking the input data during the checking of the curve arrangement calculation, which can cause irreparable losses in the construction process.

The utility model discloses a reinforcing device for tunnel engineering, which comprises a plurality of pairs of first support beams and second support beams with the same length, a plurality of vertically arranged lifting columns and a plurality of compensation pieces, a lower slot is arranged at the bottom of the middle of each first support beam, and an upper slot is arranged at the top of the middle of each second support beam. The middle parts of the first supporting beams and the corresponding second supporting beams are connected through rotating shafts, so that the first supporting beams and the second supporting beams are rotationally connected in an X shape by taking the rotating shafts as axes; the two ends of each first supporting beam or the two ends of each second supporting beam are symmetrically and rotationally connected with one lifting column correspondingly. The compensation parts are arranged on the top faces of the first supporting beam and the second supporting beam at intervals in the length direction and comprise telescopic parts arranged on the first supporting beam or the second supporting beam and extrusion parts arranged on the telescopic parts, and the telescopic parts can make the extrusion parts abut against the top face of the tunnel. The problems that the length of a top beam cannot be adaptively adjusted according to the actual width of a tunnel, and the top beam cannot form uniform and effective structural support with the top surface of the tunnel in the excavation process can be solved.

The utility model relates to a kind of heat storage type fabricated building wall, including transverse support assembly, longitudinal support assembly, wall fixed between transverse support assembly and longitudinal support assembly;Transverse support assembly includes horizontal beam, and the top surface and bottom surface of horizontal beam respectively have chute being set along horizontal beam length direction;Longitudinal support assembly includes longitudinal beam, and the top end and bottom end of the side of longitudinal beam respectively extend with clamping plate;Two clamping plates form firm bayonet between them;Longitudinal beam is also provided with fixed plate at the position of firm bayonet;Longitudinal beam is used to be clamped in horizontal beam by firm bayonet, so that two clamping plates are located at the two sides of horizontal beam and are fixedly connected with horizontal beam, and fixed plate is located in chute and is fixedly connected with horizontal beam.The utility model uses horizontal beam and longitudinal beam and makes longitudinal beam can slide along horizontal beam length direction, can flexibly adjust the spacing between longitudinal beam, meet the demand of wall length and space size in actual construction, improve construction adaptability and efficiency.

The utility model belongs to the technical field of wheat harvester frame front axle straight beams, and particularly relates to a wheat harvester frame front axle straight beam convenient to mount and maintain, which comprises a connecting seat, straight beam bodies are sleeved at two ends of the connecting seat, one end of each straight beam body is connected with a connecting piece, and a mounting hole is formed in the surface of each connecting piece. The adjusting knob is rotated clockwise, then the two-way screw rod is driven to rotate by means of the meshing relation between the first bevel gear and the second bevel gear, and the two-way screw rod is driven to rotate by means of the meshing relation between the first bevel gear and the second bevel gear. The two threaded connection blocks in threaded connection with the outer walls of the straight beam bodies can drive the guide sliding blocks to move oppositely along the guide sliding grooves, along with movement of the guide sliding blocks, one ends of the threaded connection blocks can drive the two straight beam bodies to move oppositely together, and therefore the straight beam can be conveniently placed at the installation position by shortening the length of the straight beam of the front axle of the frame during installation.

The utility model discloses hoisting equipment for hoisting an underground diaphragm wall reinforcement cage, which relates to the technical field of reinforcement cage hoisting, has the advantage of being capable of adjusting the length of a carrying pole beam and the position of a pulley on the carrying pole beam, and is characterized by comprising a plurality of mounting blocks which are arranged from left to right, every two adjacent installation blocks are connected through a connecting piece, at the moment, all the installation blocks form a carrying pole beam, the bottom end of the carrying pole beam is horizontally connected with a plurality of sliding plates in a sliding mode through sliding pieces, pulleys are arranged at the bottom ends of all the sliding plates, and hanging rings are arranged on the installation blocks located at the leftmost end and the rightmost end.

The application discloses a kind of adjustable track box girder crash barrier elevation measurement methods, box girder is placed in the elevation measurement device of a kind of adjustable track box girder crash barrier designed to assist, the device includes rail, wedge steel plate, connecting steel bar, steel plate, reinforcing rib plate, anti-rollover support frame, the rail is directly anchored on measuring platform, the wedge steel plate is welded into a whole and placed on rail, the connecting steel bar is used to connect two sides wedge steel plate, the steel plate, reinforcing rib plate is directly welded to wedge steel plate bottom end, the anti-rollover support frame is welded to one side of wedge steel plate, the device can be adjusted support mechanism according to actual beam length and beam cross slope size, it is convenient to install, strong flexibility, easy to operate, high practicality, the elevation measurement method of a kind of adjustable track box girder crash barrier in the application is with the aid of rail platform, simplifies measurement procedure, saves the measurement time of box girder crash barrier elevation, improves work efficiency.

The utility model provides a prestressed concrete ribbed beam single-T plate, a prestressed concrete ribbed beam single-T plate group and a superposed beam-slab structure, and belongs to the field of fabricated buildings, the single-T plate comprises a ribbed beam and a panel, and at least a reinforcement cage, prestressed tendons and a pre-buried sleeve are arranged in the ribbed beam. Furthermore, the reinforcement cage comprises top ribs, bottom ribs and stirrups. The prestressed ribs are arranged between the bottom ribs and the top ribs along the beam length direction of the ribbed beams; the embedded sleeve is embedded in the end of the ribbed beam and located between the bottom rib and the top rib, and an additional shear resistant rib is assembled in the embedded sleeve. The ribbed beam is of a complete beam structure, and the reinforcement cage, the prestressed tendons and the pre-embedded sleeves are arranged in the ribbed beam, so that the structure of the ribbed beam is improved, and meanwhile, the tendons distributed at the two ends of the ribbed beam are staggered in a post-pouring space formed on the frame beam, and the safety and convenience of installation are achieved when the ribbed beam is opposite end to end.

The utility model relates to a kind of floating type trowelling assembly with light collecting function, the assembly includes the trowelling frame beam being arranged in parallel along frame beam length direction, its both ends are equipped with profiled support wheel, can abut the profiled ring outer circumferential wall of the both ends of wind power generation tower cylinder prefabricated formwork, provide radial positioning;Linear guide rail assembly is installed between the both ends of trowelling frame beam and frame vertical plate, so that trowelling frame beam can be freely slid in vertical direction, realize overall lifting floating;Horizontal moving lead screw is installed in parallel on trowelling frame beam, one end is connected drive motor, provides horizontal moving drive for trowelling head;Horizontal moving slider is equipped on horizontal moving lead screw, drives trowelling head horizontal movement;Trowelling head is connected to horizontal moving slider, and the surface of concrete segment is trowelled;Light collecting mechanism connected to the both sides of trowelling head carries out light collecting to the surface of trowelled concrete.The utility model effectively improves the quality and efficiency of concrete segment surface trowelling and light collecting operation, reduces manual labor intensity.

A fluidized bed treatment system includes a vessel having a vessel wall and a plurality of chemical feed distributors coupled to the vessel wall and extending into an interior volume of the vessel. Each of the chemical feed distributors includes a distributor body forming a chemical feed flow path and a plurality of chemical feed outlets. The fluidized bed treatment system also includes at least one intermediate beam having a plurality of slots spaced along a beam length. The intermediate beam is coupled to the vessel wall at both ends, each chemical feed distributor passes through one of the slots of the intermediate beam, and the intermediate beam provides vertical support for each of the plurality of chemical feed distributors. The fluidized bed treatment system can include lateral guides. The intermediate beam and the lateral guides vertically and laterally support the chemical feed distributors.