57 results about "Superstructure" patented technology

This invention provides a prototype pipe pile shaking table test system for simulating the effects of foundation and superstructure, belonging to the fields of structural engineering, earthquake engineering, and foundation engineering. It includes a shaking table, a prototype pipe pile specimen horizontally arranged on the shaking table surface, a foundation action simulation component, a pile top axial compression simulation component, a pile cap simulation component, and a superstructure dynamic simulation component. The foundation action simulation component is fixed to the shaking table surface and covers the outside of the prototype pipe pile specimen. The pile top axial compression simulation component penetrates the inside of the prototype pipe pile specimen and extends to the outside of the pile bottom. The pile cap simulation component is connected to the top of the prototype pipe pile specimen, and the superstructure dynamic simulation component is positioned above the pile cap simulation component. This invention, using the above-mentioned test system, solves the problems of existing prototype pipe pile shaking table tests, such as large space requirements, high cost of foundation simulation, difficulty in loading real superstructures, inconvenient adjustment of working conditions, difficulty in comprehensively simulating pile-soil-structure interactions, and inability to accurately measure dynamic changes in pile axial force.

This utility model proposes a safety protection device for walking during bridge superstructure construction, belonging to the field of bridge construction technology. The device includes two movable trolleys mounted above the bridge deck, each trolley equipped with a winch connected to a steel wire rope. A suspended platform is connected to the bottom of the steel wire rope and positioned below the bridge deck. Reinforcing cages for guardrail construction are located on both sides of the bridge deck. The device also includes a stabilizing mechanism fitted onto the steel wire rope and a fixing mechanism connected to the rear end of the trolleys. This utility model, applied during bridge structure construction, solves the problem of wear and tear on the steel wire rope and bridge deck caused by gaps between them and weather conditions such as wind. It also improves the overall stability of the suspended platform, enhances the convenience of trolley fixing, and facilitates trolley movement.

Reusable, essentially pyramid-shaped concrete point foundation, characterized by an integrated reinforcement to absorb tensile, compressive and bending forces, a mounting flange located at the upper end and embedded in the concrete for receiving superstructures, as well as two or more metal pipes passing through the foundation, wherein the metal pipes are connected to the reinforcement and completely surrounded by concrete, and the foundation is designed so that it can be lifted, transported and reused after use.

This invention discloses a mechanical superstructure design method and a mechanical superstructure designed using this method, belonging to the field of mechanical superstructure technology. The method includes establishing a finite element model of a multistable unit cell, which comprises a support frame and multiple sets of arc-shaped beam structures, each set consisting of two intersecting arc-shaped beams; setting initial geometric parameters for each set of arc-shaped beam structures; obtaining the jump load thresholds for the arc-shaped beam structures in each direction through finite element analysis; determining whether the jump load thresholds in each direction increase or decrease sequentially according to a preset spatial direction; if not, adjusting the corresponding geometric parameters and iteratively solving until the sequence requirement is met, forming a programmable multi-axis jump sequence; outputting the optimized final geometric parameters; and constructing multiple multistable unit cells based on the final geometric parameters and assembling them into an array structure along spatial directions. This invention provides a mechanical superstructure capable of independent deformation in multiple spatial directions and with a programmable jump sequence.

The application discloses a high-pile wharf superstructure prefabricated component mounting device, which comprises a longitudinal beam assembly, a longitudinal beam transverse moving walking assembly, a cross beam assembly, a cross beam longitudinal moving walking assembly and a crown block; the cross beam walking assembly is arranged on the top surface of a pile cap which has been constructed, the cross beam assembly is arranged on the cross beam longitudinal moving walking assembly through a supporting leg assembly, and the longitudinal movement of the cross beam assembly is realized; the longitudinal beam assembly is connected to the cross beam assembly through the longitudinal beam transverse moving walking assembly, and the transverse movement of the longitudinal beam assembly is realized; and the crown block is movably arranged on the longitudinal beam assembly. The cross beam assembly comprises two cross beams, the two ends of the two cross beams are connected through cross beam pull rods, and the lower end surfaces of each of the cross beams are respectively connected with a supporting leg assembly. The application aims at overcoming the defects of the prior art and providing a high-pile wharf superstructure prefabricated component mounting device and a mounting method, and the construction efficiency and safety are improved, and the comprehensive cost is reduced.

This invention belongs to the field of bridge construction technology. Addressing the technical problems of complex hydrological conditions in river tributaries, poor adaptability of traditional trestle bridge structures, high construction difficulty, low efficiency, and insufficient safety, it provides a steel trestle bridge structure for river tributaries and its stress calculation method. This application consists of a main trestle bridge perpendicular to the bridge direction and a steel platform extending along the bridge direction. Both include components such as steel pipe piles, double-section I-beam main crossbeams, Bailey bridge main beams, I-beam distribution beams, and steel plate bridge decks. Expansion joints are provided at specific locations on the main trestle bridge. Construction adopts the "fishing method," which uses crawler cranes to vibrate and sink steel pipe piles while simultaneously assembling the superstructure, advancing span by span. Simultaneously, the construction process employs a flow-line operation, dividing the work into sections based on spans. This application, through its unique vertical and horizontal combined structure, effectively adapts to changes in river topography and water flow; stress calculations and verification show that the steel trestle bridge structure has strong load-bearing capacity and good stability.

The application discloses a preparation method of a force-thermal superstructure with light load bearing and laser protection, adopts a double-point lattice structure design of light metal skeleton lattice and ablation type resin matrix composite lattice nested with each other, utilizes a 3D printing forming process, combines new technical advantages of selective forming of various materials, and realizes integrated high-precision forming of the force-thermal superstructure with light load bearing and laser protection by means of finite element numerical simulation and calculation optimization. The superstructure prepared by the method improves the specific strength and specific stiffness of the structure within the design range, and simultaneously has the laser protection function, so that the method has important significance for overall weight reduction and protection.

This invention discloses a combined particle-damped underwater superstructure hull noise suppression device, comprising an outer hull, an inner hull, and a superstructure connector; the inner hull and the outer hull are coaxially arranged and form a circumferential gap; several hull connecting blocks are arranged along the inner surface of the outer hull and the outer surface of the inner hull; the superstructure connector is arranged within the circumferential gap and periodically along the axial direction of the hull, and the superstructure connector is composed of several superstructure unit cells connected sequentially along the axial direction; the superstructure unit cell is a combined cubic structural unit, including a skeleton, a mass block, and a particle damping group; the skeleton is a hollow structure, forming a cavity inside; the skeleton is provided with connecting rods and connecting blocks to realize the fixed connection between adjacent superstructure unit cells and between the superstructure unit cells and the hull connecting blocks; the mass block is detachably connected to the skeleton; the particle damping group fills the cavity inside the skeleton.

This utility model provides a high-damping rubber seismic isolation bearing, relating to the field of rubber bearing technology. It includes: a first support plate; and a seismic isolation assembly, which includes a screw fixed to the first support plate. In normal use, the first support plate bears the load of the superstructure. When vibration occurs, the seismic isolation assembly plays a major role in vibration isolation. The high-damping rubber dissipates a large amount of vibration energy through its viscous hysteresis characteristics, while the low-stiffness rubber provides greater horizontal deformation capacity, allowing the bearing to have a certain displacement in the horizontal direction. By rotating the nut, the height of the bearing can be adjusted to adapt to different working conditions. The anti-overturning assembly ensures the stability of the bearing during vibration. The limiting rod slides within the hollow tube, limiting the horizontal displacement range of the bearing and preventing excessive offset. The limiting post is within the limiting seat, preventing the bearing from overturning. Thus, this seismic isolation bearing can effectively reduce the impact of vibration on the superstructure and protect structural safety.

The application provides a davit device and a hoisting method for superstructure hoisting, the davit device comprises a female plate, an elbow plate and a web plate, the female plate comprises a first part, a second part and a third part arranged side by side, the first part and the third part are arranged in parallel, and the first part and the second part form an included angle alpha; the davit hole on the first part is used during overall hoisting, the first part is removed after the overall hoisting is completed, and then the davit hole on the second part is used for floating hoisting. The davit device provided by the application can meet the overall hoisting demand and the floating hoisting demand, is helpful to shorten the construction period; in addition, the overall strength of the davit device is improved by arranging the elbow plate and the web plate, the hoisting reinforcement demand is reduced, and the steel waste is reduced; finally, the hoisting workload of subsequent cutting and polishing is small when the davit device provided by the application is used for hoisting, and the production efficiency is improved.

This invention provides a green building life cycle assessment method and system based on pile foundation data. It acquires material and energy consumption data during the construction phase, including pile foundation data, and calculates the building's inherent environmental load by combining this data with an environmental impact factor database. During the service life, it collects pile foundation structural response monitoring data and uses a structure-foundation correlation model to invert and obtain the equivalent load time series of the superstructure reflecting the building's actual usage state. The equivalent load time series is input into a pile foundation performance degradation model to generate a maintenance plan and calculate the maintenance environmental load. Simultaneously, it identifies the building's actual usage mode and calibrates the building energy consumption model to calculate the operational environmental load. Based on the predicted state of the pile foundation performance degradation model at the end of the planned lifespan, it assesses the remaining bearing capacity of the pile foundation, formulates demolition, renovation, or reuse disposal strategies, and calculates the disposal environmental load. Finally, it summarizes the inherent, maintenance, operational, and disposal environmental loads to obtain the building's full life cycle environmental load assessment results.

The application discloses a whole-process uninterrupted skew cross-line bridge ectopic integral transverse jacking construction system and method, relates to the technical field of bridge engineering construction, and comprises a cross-road bridge pier, a side-position assembling platform arranged on the side of an existing line, a transverse sliding mechanism arranged on the side-position assembling platform, a quick-assembly bridge frame mechanism detachably connected between the assembling support and the cross-road bridge pier, and an auxiliary sliding mechanism arranged on the quick-assembly bridge frame mechanism. Bridge superstructure assembling is completed on the side, the transverse sliding mechanism is utilized to realize integral transverse jacking of the structure, and the auxiliary sliding mechanism and the quick-assembly bridge frame mechanism form continuous transition support, so that stable sliding of the bridge superstructure across the bridge pier area is realized. The technical scheme can complete bridge construction without interrupting existing traffic, has the advantages of high construction safety, good continuity and high structure positioning precision.

This invention discloses a lifting device and a bridge construction method for bridge construction. The lifting device includes a traveling mechanism, a lifting mechanism, a first traveling mechanism, a power mechanism, a bottom support structure, and a top support structure. The lifting device of this invention uses tire-type traveling wheels, occupying less lateral space. It is a cantilever structure arranged longitudinally, allowing for multiple traveling modes including lateral, longitudinal, and oblique movement. During construction, it is not constrained by the completion status of the main bridge structure, enabling simultaneous construction on multiple piers and multiple work surfaces, making it more mobile and flexible, and improving construction efficiency. The lifting device is arranged longitudinally along the bridge and can be supported by the top and bottom support structures, ensuring clear force distribution, high stability, and safety. It can be used for the installation of precast piers, precast cap beams, and precast beam superstructures (such as precast segmental beams), the installation and transfer of pier-side brackets, the installation of bridge deck ancillary facilities, and the loading and unloading of construction materials, demonstrating high comprehensive utilization.

The application discloses a bridge rescue training facility and method, and belongs to the technical field of bridge rescue training facilities.The bridge rescue training facility has a bridge area and an under-bridge area, and a plurality of engineering elevators and a plurality of staircases are arranged on the sides of the bridge area, the engineering elevators are used for assisting in carrying instruments to the bridge surface, the bridge rescue training facility is provided with structural stress monitoring sensors at structural stress points, the structural stress monitoring sensors are used for monitoring the structural stability in real time, and an automatic alarm is given when a structural member is damaged or reaches a maximum set stress value; the bridge area is provided with a bridge intact section, a bridge damaged section and a traffic accident occurrence section; the under-bridge area is provided with a dangerous chemical tank vehicle accident occurrence section; the bridge damaged section is provided with bridge damage points and a bridge fracture zone; the bridge damaged section simulates the bridge superstructure damage, the bridge substructure damage, the foundation damage and the bridge fracture scene after an earthquake disaster, and the bridge damaged section is used for carrying out the training of rapidly rescuing and repairing a damaged bridge; and the bridge damage points are located at the bridge surface plate, the beam plate, the anti-falling baffle, the support seat, the pier column and the foundation part.

A crane comprises: a superstructure designed to be able to swivel; a jib attached to the superstructure to be able to luff; a hook suspended to be able to be raised and lowered via the jib; an input device configured to input a designated path between a start position and an end position for transporting a suspended load with the hook; and a controller configured to generate a transport path for the suspended load from the start position to the end position via the designated path input into the input device.

The application discloses a superstructure meta-unit damper for a building structure and an assembling method thereof, and belongs to the technical field of civil air defense engineering. The damper comprises a connecting piece, a mass block and a rubber damper, the rubber damper is arranged on the mass block in an up-down mode, and the rubber damper is provided with the connecting piece on one side. When the meta-unit is subjected to external fluctuation and vibration, the internal vibrator also generates vibration, thereby attenuating the internal vibration wave; the local resonance of the mass vibrator consumes the external input energy; and theoretical analysis proves that the vibrator designed for a fixed frequency band, that is, the superstructure meta-unit, has a good vibration attenuation and wave attenuation effect.

This invention discloses a seismically resistant, liftable rigid-flexible composite foundation, comprising, from bottom to top, a reaction foundation, a damping foundation, an isolation layer, and an adjustable foundation. Both the reaction foundation and the adjustable foundation are made of flexible foundation materials. The damping foundation is made of rigid foundation materials and includes several horizontally alternating removable damping foundation units and several load-bearing damping foundation units. The isolation layer is made of a high-toughness, waterproof molecular material. When repair is needed, the isolation layer and the adjustable foundation are removed. Then, all removable damping foundation units are dismantled, and jacking equipment is installed at the locations where the removable damping foundation units were removed. The building structure is then lifted and leveled using the jacking equipment, while the damping foundation is gradually raised and reinforced to a new height. Finally, the isolation layer and the adjustable foundation are backfilled. The application of this invention effectively protects the superstructure from damage, greatly improving the safety of life and property.

The application discloses a bridge superstructure and substructure double-driving adaptive modeling method and system, wherein the modeling method comprises the following steps: a dynamic local coordinate system is established based on a bridge span line and a route normal line, a space included angle theta is obtained, and a virtual cutting plane is constructed; a three-dimensional boolean difference set operation is performed on a standard beam segment and the virtual cutting plane, and a skew beam segment geometric model is generated; a planar projection contour polygon of each pier is extracted, the contour polygon is discretized into a sample point set, ray collision detection is performed, terrain elevation is obtained, and the elevation range and local terrain cross slope in the contour range are calculated; when the local terrain cross slope exceeds a preset threshold, adaptive calculation of a stepped foundation or a non-equal-height pier is triggered, and top and bottom surface elevations are output; a parameter topology dependency graph is established; when local changes occur in the bridge span line or the digital terrain model data, the parameter topology dependency graph is traversed, affected nodes are marked as dirty nodes, and only the incremental recalculation of branch links where the dirty nodes are located is performed.

This invention discloses an underwater sound-absorbing composite superstructure based on a dual-resonance hybrid enhancement mechanism and its fabrication method, belonging to the field of underwater sound-absorbing structure design. This invention mixes local resonance and cavity resonance acoustic units as sound-absorbing matrices placed in a sandwich structure. The sandwich structure consists of orthogonal carbon fiber grids and buoyancy material panels, and specific viscoelastic matrix materials are configured for the two acoustic units. This invention significantly enhances sound dissipation performance by utilizing the coupling effect of the two resonance mechanisms, achieving broadband sound absorption. Furthermore, the sandwich structure effectively resists the influence of deep-water hydrostatic pressure, combining excellent sound absorption performance, load-bearing capacity, and lightweight advantages.

Bridge abutment (1), in particular concrete bridge abutment, for receiving a bridge element (29), with an abutment wall (12) having a total height (hW), wherein the abutment wall (12) has a bearing bench (17) for supporting a bridge superstructure, and wherein the abutment wall (12) has a chamber wall (11), wherein the chamber wall (11) is a precast concrete chamber wall and has a height (hK), characterized in that the abutment wall (12) has a bearing surface (13) at its superstructure-side end (15) at a height (hE), on which the chamber wall (11) is placed.

A two-row bicycle transport superstructure (4) consisting of lower superstructures (5) and upper superstructures (6) suitable for transporting 30 railway bicycles (19), which is fixed on the container fixing nails (2) of a sixty-foot container railway freight car (1), characterized in that it consists of two thirty-foot long lower superstructures (5) and five twelve-foot long upper superstructures (6), which lower superstructures (5) are welded together from outer longitudinal beams (11) made of closed section reinforced with ribs (15), cross beams (12) connecting them, inner longitudinal beams (13) and columns (14), and which upper superstructures (6) are welded together from upper outer longitudinal beams (20) made of closed section reinforced with ribs (15), upper cross beams (21) connecting them, upper inner longitudinal beams (22), upper columns (23) and upper are welded together from connectors (24),and by means of container fixing corner elements (7) formed at the bottom of which lower superstructures (5), the double-row bicycle transport superstructure (3) is fixed on the container fixing nails (2) of a sixty-foot container railway freight car (1), in addition, the upper superstructures (6) are fixed on the top of the lower superstructures (5) in such a way that the container fixing corner elements (7) welded to the upper superstructures (6) are connected to the semi-automatic swivel locks (8) placed in the container fixing corner elements (7) welded to the columns (14) of the lower superstructures (5), and two lower superstructures (5) are connected to each other by interposing a spacer (9), by a screw connection (10), and to the outer (11) and inner longitudinal members (13) of the lower superstructures (5), and to the upper outer (20) and upper inner longitudinal members of the upper superstructures (6) (22) Two nests (16) are welded to each railway wheel, which nest (16) consists of two L-profiles (17) turned opposite each other.,

This invention provides a demolition method for overbridges of rigid-frame bridges, such as π-type rigid-frame bridges and portal-type rigid-frame bridges, which can be dismantled and removed without obstructing traffic beneath the overbridge. [Solution] The method for dismantling an overbridge includes a bent assembly and installation step, in which a bent is assembled and installed at a position inside the center of gravity at the time of cutting the span to prevent the cut superstructure from tipping over; a scaffolding assembly and installation step, in which scaffolding is assembled and installed to prevent the cut superstructure from falling; a counterweight installation step, in which a counterweight is loaded and installed at a position outside the center of gravity at the time of cutting to prevent the cut superstructure from tipping over; a span cutting step, in which the superstructure is cut at any position within the span; and a jacking-up step, in which the cut superstructure is jacked up with vertical jacks. The jacked-up superstructure is then moved outward in the direction of the bridge axis using a feeding device installed on the uppermost part of the bent and scaffolding for dismantling and removal.

The application discloses a variable-capacity vapor chamber with a mechanical metamaterial composite support structure and a preparation method thereof. The variable-capacity vapor chamber comprises oppositely arranged upper and lower shells, liquid-absorbing cores fixed to the inner sides of the upper and lower shells, a plurality of superstructure columns arranged between the two liquid-absorbing cores, and a circumferentially arranged flexible sealing structure. The superstructure column is formed by wrapping the outer surface of the flexible liquid-absorbing core in the mechanical metamaterial in the full circumferential direction. The mechanical metamaterial serves as a bearing framework, and the flexible liquid-absorbing core serves as a capillary transport channel for working fluid return. The superstructure column is used for reversible deformation in the thickness direction to realize cavity volume change and maintain capillary transport continuity during the deformation process. Meanwhile, the nonlinear mechanical response of the mechanical metamaterial realizes vibration attenuation and impact energy absorption. The application integrates heat transfer, variable capacity, vibration isolation and energy absorption functions in one, and is suitable for application scenarios with dual stringent requirements for thermal management and vibration reduction, such as aerospace equipment and high-power electronic devices.

The application discloses a deck drainage pipeline system arrangement method for an outdoor walkway of a superstructure of a large ship, and comprises the following steps: S1, in the superstructure of the large ship, the number and position of total drainage pipes are reasonably planned according to the superstructure structure and the walkway distribution, and a plurality of up-and-down through arranged total drainage pipes are designed in advance as core drainage channels; S2, in the process of drainage, the downspout branch pipes of the decks of the outdoor walkways of each layer are directly merged into the total drainage pipes through the merging nodes; and S3, the accumulated water in the total drainage pipes is directly discharged to the overboard drainage outlets or the collection system of the upper deck through the gravity through the wave-proof valves. The application overcomes the problems of difficulty in draining the accumulated water of the lower deck and pipeline redundancy caused by the traditional 'layer-by-layer falling' arrangement mode, realizes efficient drainage through optimized arrangement, and ensures the safety of personnel passage.

A foundation structure (1) for wooden constructions and the like comprises: constructions includes: a footing structure (2), which is designed to be buried to transfer and release the stresses of a superstructure of a construction to the ground and mechanical connection elements (3) for structurally fastening a superstructure of a construction to said footing structure (2), advantageously said footing structure (2) is mostly defined by a gabion structure (4) filled with inert material (5) and said mechanical connection elements (3) are firmly fastened to said gabion structure (4) and project upwards from said gabion structure (4).

This invention provides a sealing structure for building openings, relating to the field of building construction technology. It includes a cross-section enlargement structure installed on the exterior of corner columns; a main beam positioned along the stress direction of the building opening, with both ends connected to the cross-section enlargement structures on two adjacent corner columns; and secondary beams, which are composite beams composed of H-beams and a superstructure plate. The H-beams span between the main beams and are fixedly connected to them, with the superstructure plate covering the H-beams. This invention enhances the load-bearing capacity and deformation resistance of existing corner columns by installing cross-section enlargement structures on their exteriors, thereby improving the stability of the entire sealing structure. The newly added main beams are arranged along the stress direction of the building opening, and the new secondary beams are a combination of H-beams and a superstructure plate. The H-beams provide high-strength load-bearing capacity, while the superstructure plate further distributes the load, thus improving the overall bending stiffness and load-bearing capacity of the sealing structure.

A walking excavator (1) having a superstructure (2) and an undercarriage (29), and a cab (3) disposed on the superstructure (2), and four walking legs (4) pivotably disposed on the undercarriage (29), and an excavator arm (5) which is pivotably mounted on the superstructure (2) and to which an excavating tool (6), in particular an excavator bucket, is fastened or able to be fastened. A dual-action differential cylinder (7) pivots the excavator arm (5) up and down relative to the superstructure (2) and is articulated on the superstructure (2), on one side, and on the excavator arm (5), on an other side. For applying additional force along with the dual-action differential cylinder (7) when pivoting the excavator arm (5) down relative to the superstructure (2), a single-action differential cylinder (8) is additionally articulated on the superstructure (2), on one side, and on the excavator arm (5), on an other side.

This invention discloses a relative acoustic impedance prediction method for composite microperforated plate structures based on a surrogate model, belonging to the field of vibration and noise control technology. This invention considers the structural parameters of variable cross-section series-parallel composite microperforated plate structures and uses Latin hypercube sampling to generate parameter samples. Relative acoustic impedance data for different structures are obtained through numerical simulation. Fourier series functions are constructed using the relative acoustic impedance data to solve for the fitting coefficients, thus achieving a fit to the relative acoustic impedance. A multi-input / output multilayer perceptron neural network is built to predict the fitting coefficients based on the structural parameters, forming a relative acoustic impedance prediction surrogate model with the fitting coefficients as an intermediate bridge. The relative acoustic impedance prediction method of this invention effectively solves the contradictory problems of high accuracy but long time consumption in numerical simulation of acoustic superstructures, and high requirements for mathematical theory and low accuracy in analytical solution derivation, thus balancing the accuracy and efficiency of acoustic superstructure design.

The application relates to a multi-chassis adaptive modular adapter chassis and a use method thereof. Since the number of two longitudinal beams is fixed, and various sizes of cross bars and girder connecting structures are arranged, when different chassis are responded to, only the corresponding size of the cross bar and the girder connecting structure need to be replaced, the integral replacement is not needed, the cross bar and the girder connecting structure are regarded as replaceable modules, the dependence degree of platform superstructure and the chassis is reduced, the independence of the chassis is improved, the design response speed of the multi-chassis demand is improved, meanwhile, the overall structural precision of the device can be better ensured, the adaptive efficiency of the platform superstructure and the chassis is improved, the chassis adaptive cost is reduced, and the problem that the platform superstructure and the chassis cannot be one-to-one matched during product development due to different customer group demands and repeated design is solved.