24 results about "Unit structure" patented technology

The invention relates to a radial frequency-doubled sound filtering metamaterial and a topological optimization design method thereof.The radial frequency-doubled sound filtering metamaterial comprises scatterers which are arranged on a base body and distributed in a concentric circle mode, and the topological optimization design method comprises the following steps that a two-dimensional axial symmetry model is established, the two-dimensional axisymmetric model corresponds to the cross section of the radial frequency-doubled sound filtering metamaterial in the radius direction and comprises periodically arranged unit structures, and each unit structure comprises a main board and a square design domain; a Floquet periodic boundary condition is applied to parallel boundaries of a unit structure in the radius direction, other boundaries are set as free boundaries, a genetic algorithm is adopted to carry out iterative optimization on the material distribution topology of a square design domain, the optimal material distribution topology of the square design domain is obtained, and then the final optimized shape of the radial double-frequency sound filtering metamaterial is obtained. Compared with the prior art, the invention has the advantages of capability of realizing omni-directional sound wave frequency doubling filtering, high design reliability and the like.

The application discloses a modular building unit structure and a modular building. The modular building unit structure comprises four cuboid building frame units, a supporting column movably connected between one straight angle end of each of the building frame units, the four building frame units distributed on the same plane, and the straight angle ends of the building frame units provided with the supporting column gathered and fixedly connected with each other, and the supporting column movable to approach or move away from the straight angle end of the building frame unit. The modular building unit structure and the modular building can remove the supporting column at the intersection of the four building frame units, so that the independent spaces in the four building frame units are connected to form a large space, the reconstruction of a large-span space can be realized on site, the reconstruction mode is simple and convenient, and the reconstruction mode can be adapted to various application scenarios.

The utility model relates to the field of constructional engineering, and discloses a construction protective fence for constructional engineering, which comprises a plurality of unit structures arranged side by side, the vertical telescopic sleeves are arranged on the left and right sides of the base; the vertical telescopic cylinder comprises a plurality of hollow cylinder bodies, and a connecting lantern ring is fixed to the outer wall of the top of each hollow cylinder body. Pull ropes are arranged on the left and right sides of the top of the blocking net, and the blocking net is fixedly connected with the connecting lantern rings through the pull ropes; and the top plate is arranged at the top of the vertical telescopic sleeve, and the lower surface is fixedly connected with the top of the innermost hollow cylinder. According to the device, the height of the protective fence is adjusted by mutually sleeving the hollow cylinders and sliding the hollow cylinders up and down, and then the height is locked in the first plug pin holes and the second plug pin holes through the plug pins, so that the purpose of quickly adjusting the height of the protective fence according to the actual requirements of a construction site is achieved. And meanwhile, the height of the protective fence can be reduced to the minimum during storage, so that transportation and storage are facilitated.

The invention relates to the technical field of buildings, in particular to a saw-toothed assembly type unit structure of an oversized aluminum plate decorative wing and a construction method.The assembly type unit structure comprises the aluminum plate decorative wing, and the mounting face of the aluminum plate decorative wing is a vertical face or an inclined face; the unit plate is arranged on one side of the installation face of the aluminum plate decoration wing, one end of the installation face of the unit plate is fixedly connected with the aluminum plate decoration wing through a reinforcing fixing piece, and the other end of the installation face of the unit plate is fixedly connected with the other end of the aluminum plate decoration wing through a secondary fixing piece; the two ends of the aluminum plate decoration wing are fixed to the installation face of the unit plate through the reinforcing fixing piece and the secondary fixing piece respectively so as to be of a linear structure convenient to transport. Wherein one end, connected with the unit plate, of the reinforcing fixing piece is fixedly connected with a main body structure through a switching system during formal assembly.

The utility model discloses a kind of assembled external elevator shaft;Including elevator shaft pedestal, several layer unit structures and several corridor components;Elevator shaft pedestal is arranged on the ground outside building, several layer unit structures are vertically arranged in turn, the layer unit structure in the lowermost layer is fixed with elevator shaft pedestal, and the cavity for reciprocating of elevator is formed in several layer unit structures inside;Corridor component is equipped between adjacent upper and lower group layer unit structures, and the corridor component at least includes two corridor support beams, one end of corridor support beam is detachably connected with corresponding layer unit structure, and the other end of corridor support beam is fixedly connected with building side wall.This assembled external elevator shaft uses assembled structure, and each component is installed on site, which greatly shortens construction period.Prefabricated bolt and detachable connection mode make installation process more convenient, reduce on-site construction time and labor force.It has little influence on building main body, and external elevator shaft does not occupy building internal space, which reduces the modification of building main structure.

The present invention relates to a meta sheet capable of independently designing a Poisson's ratio and a coefficient of thermal expansion, and a design method for the meta sheet. In the meta sheet capable of independently designing a Poisson's ratio and a coefficient of thermal expansion, according to the present invention, polygonal unit structures having beams are continuously arranged and polygonal edges are hinge-connected such that the unit structures are rotated by an external force, thereby allowing expansion or contraction at a predetermined Poisson's ratio, and the beams are formed as double-layer beams in which two materials having different coefficients of thermal expansion are bonded in the longitudinal direction such that bending deformation occurs by heat, thereby allowing expansion or contraction even by external heat.

A heat exchanger includes a core capable of exchanging heat between a plurality of fluids. The core includes a core outer peripheral wall forming an outer surface and one unit structure or a plurality of unit structures arranged inside the outer peripheral wall.The unit structure includes a plurality of flow paths formed to extend in a predetermined direction as a whole, and a partition wall separating the plurality of flow paths from each other. The plurality of flow paths include a first flow path(s) in which a first fluid flows, and a second flow path(s) in which a second fluid flows to exchange heat to / from the first fluid through the partition wall. The partition wall includes a division wall part(s). The division wall part(s) has / have a twisted shape that rotates about a rotation center axis extending in the predetermined direction in accordance with a position in the predetermined direction, and is / are formed to extend in a spiral shape from the rotation center axis in a cross section perpendicular to the predetermined direction.

The invention discloses an overweight eccentric component orifice lifting point conversion supporting device which comprises two unit structures, each unit structure comprises a steel plate bracket, supporting profile steel is welded to the steel plate bracket, a butt joint steel plate is welded to the supporting profile steel, and the two unit structures are in butt joint through connecting bolts on the butt joint steel plate. A U-shaped lifting lug is welded to the supporting profile steel, and a fine adjustment lever is arranged on the outer side of the U-shaped lifting lug. The multi-group steel plate bracket is suitable for supporting various types of reinforcement cage components, is also suitable for eccentric components, is not limited by long and short edges by optimizing a penetrating steel pipe type bracket into a non-penetrating type bracket, and meanwhile, one or two supporting points are dispersed into a plurality of supporting points, so that the stirrup is stressed more safely, and the safety in the supporting process is ensured; the supporting profile steel is located on the outer side of the reinforcement cage component, the section size is not limited by the distance between the main reinforcements and the stirrups, the supporting profile steel is supported from the outer side of the reinforcement cage component and not affected by eccentricity of the reinforcement cage, the technical difficulty of construction is lowered, and manpower input can be saved.

The invention discloses a giant stepped internal thermal insulation modular plenum chamber fabricated structure system, and relates to the technical field of plenum chamber construction. The system comprises a supporting system, a modular plenum chamber assembling system, a sealing system and a heat insulation system which are arranged in a space below a step, and the supporting system is mainly composed of a channel steel frame, a channel steel main beam and a hanging rod; the modular plenum chamber assembly system mainly comprises modular plenum chamber unit structures mounted between the adjacent channel steel girders and between the channel steel girders and the channel steel frames. The system is scientific in design, reasonable in structure, small in size, light in weight, capable of achieving modular assembly type construction and good in using effect, the technical problems that a huge static pressure box of a concrete structure is large in size, large in structural load and incapable of achieving assembly type construction are solved, and construction and implementation of a modular assembly type box body of the huge stepped internal heat preservation static pressure box are facilitated.

The invention relates to the technical field of building construction, and discloses a one-time forming method for a small-spacing sandwich structure, which is suitable for a double-wall interlayer with the spacing less than or equal to 300mm. According to the method, through a process of'filling module integrated design + one-time formwork erection + one-time pouring + convenient formwork removal ', a supporting-filling integrated filling module made of an extruded sheet or a plastic material is adopted; positioning blocks are integrally formed on the two sides of the modules, functional gaps of 20-30 cm are reserved between the modules, and a special positioning and fixing system composed of split bolts, PVC sleeves and elastic washers is matched, so that efficient and high-precision forming of the sandwich structure is achieved; the problems that in the prior art, an inner supporting unit is complex in structure, high in machining cost, prone to failure in turnover, free of functional gaps, difficult to dismantle, tedious in working procedure and the like are solved, and the inner supporting unit has the advantages of being simple in structure, controllable in cost, stable in turnover, high in functional adaptability, convenient to dismantle, free of damage to a wall and high in construction efficiency.

The utility model provides a glass rib unit type curtain wall system, and relates to the technical field of building curtain walls. The unit body structure is fixedly connected with the stand column and comprises a unit body lower cross beam and a unit body upper cross beam, and the unit body lower cross beam and the unit body upper cross beam are connected in an inserted mode; the unit body upper cross beam is fixedly connected with the first side of a first hanging lug, and the second side of the first hanging lug is fixedly connected with the main body structure; a glass rib is fixed on the first hanging lug; and the unit body lower cross beam and the unit body upper cross beam are fixedly connected with glass plates. According to the scheme, the splicing and hanging problems of combination of the glass rib and a traditional unit curtain wall are solved, reasonable stress of the whole unit is guaranteed through a reasonable connection mode, the force transmission path is clear, and the construction efficiency is high.

The application provides a concentric ring superlens based on assembly of two-dimensional unit structures and a preparation method thereof. The application obtains a simulation region of two-dimensional unit structures, obtains processable structures in the simulation region, constructs a unit structure library containing complete optical information according to the processable structures, obtains a two-dimensional structure section according to the unit structure library, rotates the two-dimensional structure section around an optical axis, and obtains the overall three-dimensional structure of the concentric ring superlens. The preparation method of the concentric ring superlens of the application makes the calculation power requirement for designing the concentric ring superlens no longer increase with the increase of the aperture, and the design time of the superlens with an aperture of the order of thousands of wavelengths is reduced from the order of weeks to the order of minutes, which has obvious speed advantages in overall structure assembly, layout generation, sample processing and the like. The focusing efficiency of the concentric ring superlens prepared by the application is obviously higher than that of a Fresnel lens of the same order.

The utility model relates to the field of air treatment, in particular to a separated all-air unit structure which comprises a base, a plurality of module boxes are slidably connected to the top of the base, a plurality of mounting frames are fixedly connected to the top of the base, and communicating blocks are fixedly communicated with the left sides and the right sides of the module boxes. And a mounting groove matched with the communicating block is formed in the mounting frame, and the communicating block is slidably connected with the mounting groove. During installation, the installation frame is fixed firstly, then the module box communication block slides into the installation groove, and finally the module box communication block is fixed through the moving block and the locking block, the installation process is simple, all parts can be transported in batches, and the installation problem in narrow or special places is solved. During maintenance, the moving block can be easily taken down by rotating the rotating plate, limiting on the communicating block is relieved, the module box can be conveniently taken down to maintain and replace components, and installation and maintenance are very convenient and efficient.

The utility model relates to an extruded polystyrene board for green building roof heat preservation, which comprises a bottom frame, an extruded layer, a waterproof layer, a facing layer and a plurality of nuts, the extruded layer, the waterproof layer and the facing layer are sequentially stacked in the bottom frame from bottom to top, and the facing layer extends to the upper part of the bottom frame. The multiple nuts are matched with the bottom frame to be connected and used for fixing the extrusion molding layer, the waterproof layer and the facing layer, so that a modular roof unit structure is formed among the bottom frame, the extrusion molding layer, the waterproof layer and the facing layer. According to the modular roof unit structure, the construction process of a roof heat preservation system is more standardized and normalized through the arrangement of the modular roof unit structure. Construction personnel only need to assemble a plurality of groups of modular roof unit structures to complete the installation of the roof thermal insulation system, so that the construction process is greatly simplified, the construction period is shortened, the investment of labor and materials is reduced, and the construction cost is reduced.

The utility model relates to the technical field of curtain walls, in particular to a curtain wall unit structure of a spatial hyperbolic special-shaped building, which comprises a curved surface curtain wall, a framework mechanism is arranged on the curved surface curtain wall and is used for assembling and installing the curved surface curtain wall, and the framework mechanism comprises a connecting component, a fixing component and a fixing component, shaft heads are fixed at the upper end and the lower end of the connecting seat, and a main shaft seat is fixed at the rear end of the connecting seat; the supporting assembly comprises supporting frames installed on the left side and the right side of the connecting base and is used for supporting the curved surface curtain wall; the fixing assembly comprises a fixing frame pivoted to the shaft head, and auxiliary shaft seats are fixed to the upper side and the lower side of the rear end of the fixing frame; accurate positioning of the building curtain wall is achieved through the multi-direction angle adjusting function, and the complex curved surface installation requirement is met; and by adopting the design of quick alignment and self-adaptive contact, the mounting efficiency and the structural stability are remarkably improved, the wind resistance and earthquake resistance are effectively enhanced, and the hidden danger of stress concentration is eliminated.

The utility model relates to a split type caisson structure which comprises a lower caisson, an upper caisson, a lower caisson and an upper caisson. The plurality of partition walls are transversely and longitudinally arranged in the first rectangular space and are divided into a plurality of first cabin grids; connecting pieces are pre-buried at the intersections of the partition walls; the upper caisson comprises an upper outer wall, a connecting column and a rectangular cabin body; the upper outer wall is connected with the lower outer wall; the connecting column is connected with the connecting piece, and the connecting column comprises a cylindrical surface; the rectangular cabin is located in the second rectangular space and abuts against the upper portion of the partition wall. An arc-shaped surface attached to the cylindrical surface of the connecting column is arranged at the external corner of the rectangular cabin body; the top plate abuts against the top of the upper caisson; the top plate is provided with a first through hole allowing the connecting column to penetrate through, the connecting column penetrates through the first through hole and then is connected with a pressing plate, and the pressing plate abuts against the upper portion of the top plate. According to the utility model, the upper caisson can be divided into a plurality of unit structures, so that the detachable hoisting is convenient.

The application discloses a rotary-in-place steel structure modular building structure and a construction method thereof, which comprises multiple-layer unit structures stacked together, and the unit structure comprises: two-layer bases, each of which comprises four base plates arranged in a matrix mode, the base plate is provided with a through hole, and two adjacent base plates of each base are connected with a cross beam; four vertical pipes, the upper end of the vertical pipe and the base plate of the bottom base are respectively provided with a plug-in connector coaxially arranged with the vertical pipe, the upper and lower ends of the vertical pipe are movably arranged in the through hole of the base plate of the two-layer base, the lower end of the vertical pipe is sleeved with the plug-in connector on the base, the lower end of the vertical pipe of the upper-layer unit structure is sleeved with the plug-in connector on the vertical pipe of the lower-layer unit structure, the clamping block of the plug-in connector is embedded in the clamping hole of the vertical pipe through the gap of the vertical pipe, and the base plates of two adjacent unit structures in the horizontal direction are connected together. The application solves the problem that the connecting structure between steel structure modular building modules cannot be applied to multiple vertical pipe module unit assemblies.

To provide a construction method of a unit structure with excellent workability.SOLUTION: A construction method of a unit structure 100 in which a plurality of anchor bolt attaching holes 12d are formed in a lower part and a plurality of cylindrical jack insertion portions 12e projecting downward from a lower surface are provided, includes: a unit structure placing step S5 of hanging up the unit structure 100 and then lowering it, and inserting an insertion portion 302 of a jack 300 arranged on a base portion 200 into the jack insertion portions 12e, to place the unit structure 100 on the jack 300; an anchor bolt attaching step S9 of attaching an anchor bolt 401 to the anchor bolt attaching hole 12d; a formwork forming step S11 of forming a formwork 500 surrounding a lower part of the unit structure 100 on the base portion 200; and a foundation forming step S12 of pouring concrete into the formwork 500 to form a foundation.SELECTED DRAWING: Figure 1

The application discloses a formwork supporting device for small-space column joint between double structural columns and a construction method thereof. The positioning assembly of the edge locking device tightly grips the corner of the rectangular column formwork, so that displacement of the rectangular column formwork is avoided during concrete pouring. The two edge locking devices are locked by the elongation of the jacking assembly, and then supported between the two rectangular column formworks, so as to provide sufficient supporting force for the rectangular column formwork and avoid the problems of formwork expansion and formwork explosion. The formwork supporting device for small-space column joint between double structural columns is vertically stacked and inserted through a multilayer unit structure, so as to adapt to structural columns with different height specifications, and three-dimensional adjustment in three directions of the width of the structural column, the distance between the two structural columns and the height of the structural column is realized. The application solves the problem that the existing formwork reinforcing system has great difficulty in reinforcing operation in the limited space between the double column distance.

Disclosed are a meta-sheet capable of independent design of a Poisson's ratio and a coefficient of thermal expansion, and a method of designing the same, the meta-sheet including: unit structures shaped like polygons, formed of beams, and arranged continuously with polygonal edges connected by hinges so that the meta-sheet can expand or contract at a predetermined Poisson's ratio as the unit structures are rotated by external force, wherein the beam is formed as a bilayer beam into which two materials different in the coefficient of thermal expansion are jointed in a longitudinal direction, and bending deformation occurs due to heat so that the meta-sheet can expand or contract by external heat.

The invention discloses a sea reclamation engineering underground structure advanced construction method which comprises the following steps: prefabrication of underground engineering unit structures: designing a main body structure based on application, load and functional requirements of underground engineering, dividing the main body structure into a plurality of unit structures, and prefabricating each unit structure according to design conditions, an interface is reserved for butt joint assembly; carrying out underwater soft foundation reinforcement on a preset area in which the underground engineering needs to be built; the unit structures in the first step are conveyed to a preset area in a floating mode and are placed in a preset position in a sinking mode to be in butt joint, and a main body structure is formed; carrying out hydraulic reclamation on the outer part of the butted unit structure to form a land area; the filler in the unit structure is cleaned and transported; the wall body at the joint is dismantled, so that the internal spaces of the two adjacent unit structures are communicated with each other; an upper region of the subterranean structure is built. The problems of long construction period, high cost and high risk of the underground engineering structure of the traditional reclamation engineering are solved.

An information processing device 1 includes a feature detection unit 28 for detecting, from a construction image acquired by an imaging device by capturing an image of a construction that includes a plurality of unit structures respectively having identical or similar external structures, a feature relating to the external structures, and a unit structure estimation unit 29 for estimating parts of the construction image that correspond respectively to the plurality of unit structures included in the construction on the basis of a plurality of the detected features.

The utility model discloses a kind of assembly type external elevator shaft's veranda connecting structure, including veranda support beam, upper and lower unit structure and front column shear component. Front column is composed of cavity main body and both sides sealing plate, lower layer sealing plate is provided with notch, upper layer sealing plate is inlayed with notch and is compressed support beam;Support beam end portion welding shear plate, after being inserted into the shear hole of upper and lower front column, it is locked with front column vertically by first, third bolt, it is locked with horizontal rack transversely by second, fourth bolt, form three-dimensional shear system.Nut is pre-welded on shear plate, only bolt is tightened on site, improve construction efficiency, bearing capacity is improved, when maintaining, it can be single piece dismounting, suitable for high anti-seismic assembly type external elevator shaft.

To efficiently exchange heat between the first fluid and the second fluid. [Solution] The economizer 10, which is a heat exchanger, has a three-dimensional structure 20 skeleton in which unit structures 24 formed of heat transfer walls 23 are arranged regularly and continuously in the XYZ directions. The unit structures 24 include a first unit structure 241 in which both sides of the heat transfer wall 23 are set to flow path portions 31 for combustion gas G2, and a second unit structure 242 in which one side of the heat transfer wall 23 is set to flow path portion 32 for water W and the other side is set to flow path portion 32 for combustion gas G2. The second unit structure 242 is provided with a heat-conductive partition wall 25 at its end in at least one direction of the XYZ directions, and is arranged continuously in the direction in which the partition wall 25 is not provided, thereby forming a fluid channel 28 in which the flow path portions 32 of water W communicate with each other. The first unit structures 241 are arranged to surround the direction in which the partition wall 25 of the second unit structure 242 is provided.