21 results about "Laminated beam" patented technology

The application discloses a high-efficiency lacing construction of a laminated beam section and a construction method thereof. For the laminated beam with a common section width of 400-800 mm in engineering, different numbers of composite stirrups are combined, and the hook forms and positions of the stirrups are changed to facilitate efficient lacing. Compared with the prior art, the application solves the problem of collision between the 135-degree hook of the traditional stirrup and the longitudinal reinforcement by optimizing the stirrup construction form of the laminated beam section, increases the operation space for lacing the top reinforcement of the laminated beam, reduces the construction difficulty, and effectively improves the on-site construction efficiency of the laminated beam. The lacing construction of the laminated beam section solves the construction pain point of the difficulty in lacing the laminated beam of the existing fabricated frame structure, can avoid the quality problems caused by the difficulty in lacing the stirrup on site, guarantees the safety of the structure, and meanwhile, the optimized composite stirrup construction of the laminated beam is simple, convenient to produce, and can realize efficient processing and efficient construction.

The utility model relates to the technical field of buildings, in particular to an assembly type laminated slab supporting structure which comprises two laminated slabs, two laminated beams, a plurality of brackets and a plurality of connecting members, each connecting member comprises a mounting block, a fixing box, two fixing pins, a handle, a driving roller, a rotating piece, a moving disc and two locking arms, the two laminated beams are arranged on the laminated beams, and the two brackets are arranged on the mounting block. The fixing box is fixedly connected with the corresponding laminated plate, the mounting block is fixedly connected with the corresponding bracket, the mounting block is matched with the fixing box, the two fixing pins are slidably connected with the fixing box, the handle, the transmission roller, the rotating piece and the two locking arms are arranged on the fixing box, the transmission roller is fixedly connected with the handle, and the rotating piece is rotatably connected with the transmission roller. The movable disc is in sliding connection with the rotating piece, the two locking arms are in rotating connection with the movable disc, and the problem that when a plurality of adjustable brackets are disassembled and assembled, the adjustable brackets need to be disassembled and assembled through tools, and use is inconvenient is solved.

The application discloses a densely-spliced modular steel-concrete building, which comprises a plurality of steel-concrete building units; the steel-concrete building unit comprises a steel column, a top beam, a bottom beam and a connecting plate, the top beam and the bottom beam are connected to the top and the bottom of the steel column respectively to form a rectangular box type structure, the connecting plate is welded to the bottom surface of the bottom beam, and the upper edge of the connecting plate is welded to the bottom beam; the plurality of steel-concrete building units are stacked one on another, the lower edge of the connecting plate of the upper steel-concrete building unit falls on the top beam of the lower steel-concrete building unit and is welded to the top beam; in the application, the bottom beam of the upper steel-concrete building unit and the top beam of the lower steel-concrete building unit are connected through the connecting plate to form a new single laminated beam, the integrity of the whole steel-concrete building is improved, and the load bearing capacity of the building is stronger; meanwhile, the gap between the steel-concrete building units is smaller, a densely-spliced building effect is formed, and the building space can be expanded, and the subsequent waterproof construction and decoration construction are facilitated.

The application discloses an assembled longitudinal laminated beam sleeper damping system and belongs to the technical field of rail transit. The longitudinal sleeper is a laminated beam structure and comprises an upper beam and a lower beam. A damping layer is arranged at the interface between the upper beam and the lower beam. A transverse connecting piece is transversely connected between two longitudinal sleepers. An elastic damping component is arranged at the bottom of the longitudinal sleeper. The damping layer comprises two steel plates, and rubber is arranged between the two steel plates. The assembled longitudinal laminated beam sleeper damping system solves the three technical problems of difficulty in low-frequency vibration isolation, high stress concentration and high maintenance cost in the field of rail transit damping.

The intelligent damping device comprises a base, a piezoelectric laminated beam, a bearing, a bearing sleeve, an outer sleeve, an inner sleeve and a vibration isolation net, the inner sleeve, the vibration isolation net and the cutter are coaxially arranged, the vibration isolation net is located between the cutter and the inner sleeve, the bearing is arranged on the cutter in a sleeving mode, the bearing sleeve is arranged on the outer side of the bearing, and the piezoelectric laminated beam is arranged on the outer side of the bearing. The outer sleeve and the cutter are coaxially arranged, one end of the outer sleeve is connected with the base, the other end of the outer sleeve is suspended, and the multiple piezoelectric laminated beams are evenly arranged in the circumferential direction of the cutter. One end of the piezoelectric laminated beam is connected with the base, and the other end is connected with the bearing sleeve; the inner sleeve is connected with the handle; a piezoelectric layer capable of outputting acting force is arranged in the piezoelectric laminated beam, the outer sleeve is a rigid sleeve, and the piezoelectric laminated beam is connected with a piezoelectric actuator. Vibration reduction is conducted in the mode that active vibration suppression and passive vibration isolation are combined, and compared with a single passive vibration reduction or active vibration suppression mode, the vibration reduction effect is better improved, and the cutting stability is improved.

The invention provides a stiffened integrated plate, a stiffened integrated laminated plate, a stiffened integrated laminated beam-slab structure and a construction method thereof, and belongs to the field of fabricated buildings, the stiffened integrated plate comprises a hollow plate body and a plate rib connecting piece, a prestressed steel strand is tensioned in the hollow plate body, a plurality of holes are formed in the hollow plate body at intervals in the plate width direction, and plate ribs are formed on the side portions of the holes; the plate rib connecting pieces are at least embedded and installed in the plate rib direction of the hollow plate body, at least one plate rib connecting piece is located at the end of the hollow plate body, a post-pouring cavity capable of being poured firmly is formed in each plate rib connecting piece, post-pouring structural ribs are arranged in the post-pouring cavities, and the plate rib connecting pieces penetrate through additional shear-resistant ribs at the plate thickness center line position to form a post-pouring structure. The pre-stressed steel strand penetrates through the constraint inverted arch, the plate rib connecting piece is matched with the plate rib through the cavity after solid pouring to form a stiffening hidden beam, and the pre-stressed steel strand and the additional anti-shearing rib are connected into a whole, so that the structural safety and the anti-shearing performance are greatly improved.

The utility model discloses an array laser emitting device, which relates to the field of semiconductor lasers and comprises an emitting device body, laser emitting layers are arranged in the emitting device body in a layered manner along the vertical direction, laser emitting units are arranged on the laser emitting layers along the horizontal direction, and each laser emitting unit comprises a laser and a light beam reflecting part. The lasers are assembled in the transmitting device body in a stacked mode through the multiple layers of heat sinks, and the multiple light beam reflecting parts combine all lasers in the corresponding laser transmitting units into laminated beam combined lasers. The emitting device body is provided with a laser beam combining emitting port, and a layer laser beam combining part for combining all layer combined laser beams to form array combined laser beams which can be emitted from the laser beam combining emitting port is also arranged in the emitting device body. According to the array laser emitting device provided by the utility model, the space utilization rate is improved through multi-layer stacking and a three-dimensional beam combining light path; and a three-dimensional heat dissipation system is established by using multiple layers of heat sinks, so that the contradiction between heat dissipation and compact design of high-power equipment is solved.

The assembly type composite beam and slab mounting auxiliary device comprises a base assembly, a damping assembly, a bearing assembly and a locking mechanism which are sequentially connected from bottom to top. Universal wheels are arranged at the lower end of the base assembly; the upper end of the bearing assembly is provided with a containing face used for containing the assembly type superposed beam plate. The damping assemblies are distributed between the base assembly and the bearing assembly in a rectangular array mode. The locking mechanism is installed at the upper end of the bearing assembly and used for abutting against and positioning the assembly type composite beam plate. The mounting auxiliary device has the advantages that after being transported to a construction site along with a heavy truck, the assembly type laminated beam slab is transferred to the mounting auxiliary device, and the assembly type laminated beam slab can be stably and firmly transferred to the position where the lifting device is located in a labor-saving mode through the mounting auxiliary device.

The utility model discloses assembly type building superimposed beam side mould self -locking formwork, it includes the multiple L concave cavity steels welded in two side formworks opposite side, and the bottom of two side formworks is provided with steel bottom support, and two side formworks all slide in the top of steel bottom support, and the locking assembly is provided between two L concave cavity steels, the locking assembly includes L clamping bar, and the bottom of L clamping bar is located in the inner chamber of one L concave cavity steel. The utility model discloses through the insertion of vertical clamping bar into the inner chamber of one L concave cavity steel, then the operation of swivel lever drives gear to rotate, and the gear drives L clamping bar to move in the inner chamber of sliding sleeve through rack, until L clamping bar enters the inner chamber of another L concave cavity steel, at this moment, the toothed wheel is clamped on the surface of gear, can lock and determine the interval of two side formworks, prevent the lateral formwork from offsetting to the outside, can reach the purpose that the interval of shaking control locking can be self -locking and adapts to various side mould intervals.

The utility model relates to a composite prefabricated dense rib superposed beam plate. The concrete beam comprises a steel reinforcement framework and a cement base body, the cement base body is divided into a first beam body, a second beam body and a plate body connected between the upper portions of the two beam bodies, and an inclined downward bending part is formed at the connecting position of the plate body and the two beam bodies; the steel bar framework is divided into a first beam cage, a second beam cage, a distribution bar net and a downward bending steel bar set. A plurality of third stress ribs distributed at equal intervals are further arranged at the bottom of the distribution rib net, third structural ribs are connected between the third stress ribs and the distribution rib net, and reinforcing ribs wrapping the third stress ribs are arranged at the bottom of the plate body. The dense ribs have similar functions with truss ribs on an existing beam plate, have better mechanical strengthening effect and improve bending and cracking resistance effects. And no shielding object is formed on the upper surface of the plate body, so that free wiring of the pipeline is facilitated.

The present application relates to the technical field of laminated beam structure, and provides a composite beam and teaching aid thereof, which comprises a plurality of beams and split wedge block assemblies, the beams are provided with wedge block holes, and the plurality of beams are arranged in a laminated manner, and the split wedge block assemblies are fitted into the wedge block holes and can lock the beams of each layer. The split wedge block assembly comprises an adjusting member and at least one wedge block group, the wedge block group is provided with a plurality of wedge-shaped sliders, and the adjusting member is connected with the wedge block group, so that each wedge-shaped slider can move relatively along the extension direction of the wedge surface. The composite beam is designed in a modular manner, i.e. a single beam and a split wedge block assembly, and the single beam and the split wedge block assembly are combined and locked to form the composite beam, so that the single beam can be replaced or added quickly and conveniently, different combination modes can be realized quickly, the combination flexibility of the composite beam is improved, and the stiffness and structural strength of the beam can be changed quickly by adding or replacing the single beam.

The invention provides a vibration intelligent control parameter optimization method and system for a piezoelectric laminated beam, relates to the technical field of piezoelectric control, and aims to optimize the array layout of piezoelectric devices by using a multi-target genetic algorithm so as to improve the vibration suppression effect and the energy collection efficiency. And a self-adaptive PID closed-loop controller is adopted to dynamically adjust system parameters. Running state data, including stress, electric field intensity and the like, of the piezoelectric laminated beam are collected, correlation analysis is conducted through a Bouc-Wen model, output force is predicted in real time, and a control signal is generated to adjust a piezoelectric actuator. According to the method, the response speed and the control precision of the system are improved, the problems of fixed layout and inflexible response in the prior art are solved, and intelligent control of the piezoelectric laminated beam system is realized.

The utility model belongs to the technical field of combined beams, and discloses a combined reinforcement superposed beam which comprises a fixing plate, a plurality of limiting shafts are fixedly arranged on the top face of the fixing plate, a plurality of limiting blocks are fixedly arranged on the two sides of each limiting shaft, the limiting blocks are evenly distributed on the two sides of each limiting shaft, and the limiting shafts are fixedly arranged on the top face of the fixing plate. A bridge deck body is clamped to the top face of the limiting block, a first limiting groove is formed in the bridge deck body, the limiting block is located in the first limiting groove, a second limiting groove is formed in the bridge deck body, the first limiting groove communicates with the second limiting groove, and the limiting block is located in the second limiting groove. By means of the scheme, the problem that positioning is difficult when the bridge deck slabs are laid is solved, the situation that the service life of the composite beam is shortened due to uneven distribution of the bridge deck slabs is avoided, the strength of the composite beam is improved, it is guaranteed that the centers of the bridge deck slabs can correspond to one another, and the attractiveness of the bridge deck is improved.

The application provides a damage rapid analysis method for a composite structure heterogeneous material interface, adopts a high-order laminated beam model based on a sub-laminated beam, accurately captures the laminated structure behavior of the heterogeneous material, and significantly improves the calculation efficiency. By introducing surface nodes, the high-order laminated beam model simplifies the characterization of the layered damage, and facilitates the insertion of the cohesive force unit between the sub-laminated beams. Under the framework of the cohesive force model, a damage-plastic interface constitutive relationship is established to simulate the interface behavior. Different from the traditional damage mechanics model, the damage-plastic interface constitutive model considers the friction dissipation and plastic dissipation effect, and significantly improves the modeling accuracy. The application decouples the damage and plastic deformation into two stages in the effective stress space, simplifies the complex problem into an ideal elastic-plastic problem, significantly reduces the calculation cost, and significantly improves the prediction accuracy.

The utility model provides an assembly type composite slab and composite beam temporary haunching supporting device, and relates to the technical field of supporting devices, the assembly type composite slab and composite beam temporary haunching supporting device comprises a plurality of supporting seats and opposite-pull screw rods, each supporting seat comprises angle steel, reinforcing plates are arranged on the two sides of each angle steel, and screw rod holes for the opposite-pull screw rods to penetrate through are formed in the angle steel. The device is simple and convenient to operate and high in efficiency, shortens the construction period of a template project, reduces the cost while ensuring the quality, and brings certain economic benefits.

The utility model relates to an edge protection device, belongs to the technical field of municipal administration, and particularly relates to a superposed beam steel structure edge protection device which comprises a superposed beam steel structure and a steel pipe fastener. The multiple vertical steel pipes are arranged, and the vertical steel pipes are fixedly installed on the surface of the superposed beam steel structure; the multiple transverse steel pipes are arranged, and the transverse steel pipes are arranged on one side of the vertical steel pipe; the steel pipe fastener comprises U-shaped steel clamped between the transverse steel pipe and the vertical steel pipe; according to the utility model, the effect of recycling is achieved, and the problems that a welding construction method is adopted in the prior art, the construction efficiency is low, the edge safety risk is increased, and the quality risk is generated on the superposed beam steel structure when the superposed beam steel structure is cut off through electric welding during dismantling are solved.

The invention discloses an assembly type longitudinal superposed beam sleeper vibration reduction system, and belongs to the technical field of rail transit, the assembly type longitudinal superposed beam sleeper vibration reduction system comprises a longitudinal sleeper, a transverse connecting piece and an elastic vibration reduction component, the longitudinal sleeper is of a superposed beam structure and comprises an upper beam and a lower beam, and a damping layer is arranged on a middle interface of the upper beam and the lower beam; the transverse connecting piece is transversely connected between the two longitudinal sleepers, and the elastic vibration reduction parts are arranged at the bottoms of the longitudinal sleepers. The damping layer comprises two layers of steel plates, and rubber is arranged between the two layers of steel plates. The fabricated longitudinal superposed beam sleeper vibration reduction system solves the three technical problems of difficult low-frequency vibration isolation, high stress concentration and high maintenance cost existing in the field of rail traffic vibration reduction for a long time.

The utility model discloses a composite beam slab non-abutted seam support and side mould integrated device, which comprises a composite beam slab body and a side plate mould, both ends of the upper surface of the composite beam slab body are provided with insertion ports, U-shaped insertion blocks can be inserted into the insertion ports, the U-shaped insertion blocks are fixedly mounted on the upper surface of the side plate mould, a top sealing mechanism is inserted into the U-shaped insertion blocks in a sliding manner, and the top sealing mechanism is fixedly mounted on the side plate mould. Therefore, the top sealing mechanism can automatically extend towards the two ends from the U-shaped inserting block after being pressed by the laminated beam plate body, and the top sealing mechanism can extend to abut against the abutted seam between the inserting opening and the U-shaped inserting block. Through the design of the top sealing mechanism, in the process of the main installation action that the side plate mold is inserted into the insertion opening of the laminated beam plate body, sealing treatment of the abutted seam is synchronously and automatically completed, the construction procedures are reduced, the operation time is shortened, the construction efficiency is improved, and the labor cost and the labor intensity are reduced.

The application discloses a risk analysis method for a large-span cavern in a horizontal joint rock stratum, belongs to the technical field of geotechnical engineering and rock mechanics, and solves the problem that the spatial relationship between the inclination and strike of a horizontal joint and the axis of a cavern cannot be fully considered in the prior art, thereby leading to inaccurate risk assessment. The application obtains the geometric parameters of horizontal joints in a target cavern area; analyzes the material properties inside the horizontal joints; constructs a plate girder and laminated beam mechanical model of a crown rock mass based on the geometric parameters of the horizontal joints and the material properties inside the horizontal joints; calculates the bending deformation of each rock beam under the action of gravity and deformation of underlying rock strata, and obtains the interlayer displacement, thereby evaluating the crown falling risk; calculates the stress concentration coefficient of the arch foot, thereby evaluating the arch foot risk; and determines the cavern risk grade based on the crown falling risk and the arch foot risk. The application is used for risk analysis of a large-span cavern in a horizontal joint rock stratum.

The utility model relates to the field of building construction, in particular to a superposed beam plate and cast-in-place beam column joint steel bar positioning device which comprises a lead screw and sleeves in threaded connection with the two sides of the surface of the lead screw. The fixing assembly horizontally slides on the surface of the sleeve; the fixing assembly comprises a sliding plate arranged on one side of the sleeve, a clamping sleeve is arranged on one side of the sliding plate, and an abutting plate is arranged below the sliding plate. By arranging a sliding plate, a clamping sleeve and a bolt of the fixing assembly, a worker can conveniently adjust and fix the angle and the position of a steel bar, so that the steel bar is not affected when concrete is poured into a beam column, and the stability of the steel bar can be effectively improved; by arranging the lead screw, the sleeve and the angle plate, a worker can conveniently install the whole positioning device on beam columns of different specifications, meanwhile, the debugging mode is simple, convenient and rapid, convenience can be provided for the worker, and meanwhile the accuracy of steel bar shape adjustment can be kept.

The application relates to the technical field of building structures and discloses a dry-wet mixed type connecting structure of a concrete beam-plate joint and a construction method, which comprises the following structure: a connecting box top is open, the side wall of the connecting box is provided with first anchor bars, and the connecting box and the first anchor bars are both pre-buried into a prefabricated bottom plate; an L-shaped connecting piece comprises a horizontal part and a vertical part, the horizontal part is arranged at the top of a laminated beam, the bottom surface of the horizontal part is vertically provided with second anchor bars pre-buried into the laminated beam, and the vertical part is attached to the side wall of the connecting box and is bolted; the top of the prefabricated bottom plate and the top of the laminated beam are poured with concrete; the connecting structure does not have the problem of position conflict between the reserved external steel bars of the prefabricated bottom plate in the composite slab and the stirrups of the laminated beam, the construction progress is accelerated, the industrialized construction efficiency of the fabricated building is greatly improved, and after the composite laminated slab is connected with the laminated beam, the whole concrete is uniformly poured to realize wet connection, thereby greatly improving the integrity of the beam-plate joint.