404 results about "Superstructure" patented technology

The invention discloses a construction method and a construction system for bridge joist pier replacement, and relates to the technical field of bridge construction.The construction method comprises the following steps that gate-type pier studs are arranged on the two sides of a to-be-replaced pier, two steel cover beams are arranged on the corresponding gate-type pier studs in the longitudinal direction of a bridge, and a sliding structure is arranged on the two steel cover beams; temporary supporting pieces are arranged on the two steel cover beams, and the bridge superstructure is supported through the temporary supporting pieces; a pier cap of the to-be-replaced pier is cut off, the pier cap is moved out through a sliding structure, and the steel coupling beam is moved to the position where the original pier cap is located through the sliding structure; and supporting the upper structure of the bridge by using the steel coupling beam, and removing the temporary supporting piece to complete pier replacement. According to the construction method, in the joist pier replacement process, the connection stability is high, the construction method is simple, and the construction efficiency and safety are ensured.

System and method for monitoring vehicular traffic on a bridge, including receiving digital data representing the response of the bridge to a traffic event, where the digital data has been collected during the traffic event, from displacement sensors and accelerometers mounted on the superstructure of the bridge, wherein the digital data from the displacement sensors embody bending responses of the bridge, the digital data from the accelerometers embody acceleration responses of the bridge, and the digital data from the sensor are synchronised in the same time space, providing a parametric model which uses modal parameters to simulate generalized boundary conditions and two-dimensional behaviour of the bridge; using the parametric model to process the digital data to solve for deformation of the bridge and characteristics of the vehicle traffic, and generating an output that describes the deformation of the bridge and characteristics of the vehicle traffic.

The invention discloses a bridge substructure modeling scheme generation method and device, equipment and a medium, and relates to the technical field of bridge engineering, and the method comprises the steps: obtaining bridge superstructure design input parameters, constructing substructure design task information, and generating design parameters through big language model reasoning; and a modeling script is automatically generated, and structural response calculation is carried out. Different modeling strategies are judged and executed according to the calculation result, finally, a target modeling scheme meeting the requirement is intelligently generated, design parameter generation and automatic modeling of the bridge substructure in a non-standard bridge type scene are achieved, and the design efficiency and accuracy are improved.

The invention relates to a bridge superstructure safety risk assessment method and system and a storage medium. The method comprises the following steps: acquiring disease score deduction information of a technical condition of a bridge superstructure; obtaining bridge superstructure technical condition scoring data of the sample bridge, bridge superstructure score-deducted indexes and disease classification categories of the score-deducted indexes, and analyzing common indexes in the score-deducted indexes according to the score-deducted indexes; calculating a deduction value of the disease classification category of the common index at each scale based on an LSHADE algorithm, and calculating a safety risk score of the bridge superstructure of the sample bridge; dividing safety risk levels; constructing a bridge safety risk evaluation model by adopting a CatBoost ensemble learning method, and training the bridge safety risk evaluation model by utilizing a frequency reduction coefficient and the like of a sample bridge; and evaluating the safety risk level of the bridge superstructure by using the trained bridge safety risk evaluation model. The method is high in evaluation efficiency, low in cost and high in accuracy.

The invention discloses an electromagnetic shielding technical scheme of a coding superstructure and an optimization design system. The electromagnetic shielding technical scheme comprises a reflectivity setting module which sets a reflectivity threshold according to target shielding performance; the superstructure construction module generates an initial candidate array based on the symmetric unit design; and the parameter optimization module dynamically adjusts the sub-block thickness and the unit ratio k value through a particle swarm algorithm, and realizes 1-18GHz broadband reflectivity optimization in combination with a piecewise evaluation function. According to the invention, through deep fusion of coding superstructure design and an intelligent optimization system, collaborative optimization of electromagnetic loss and phase regulation is successfully realized, and significant technical advantages are formed in key indexes such as broadband absorption, angle adaptability, system efficiency and the like.

The invention discloses a chiral paper folding superstructure connecting pipe for vibration control, and relates to the technical field of structural mechanics and vibration reduction performance of cylindrical shell type connecting pipes. The invention aims to solve the problem that the existing chiral superstructure cannot meet the vibration reduction requirements under different frequencies. The structure comprises a plurality of superstructure unit cells, the superstructure unit cells are sequentially arranged from top to bottom in the axial direction, every two adjacent superstructure unit cells are connected through a set of unit cell connecting rods, the superstructure unit cells comprise a plurality of unit cells arranged in the circumferential direction, the upper ends of the unit cells are twisted anticlockwise, and the lower ends of the unit cells are twisted anticlockwise. And the upper end inner blade angle of each unit cell is connected with the lower end inner blade angle of the adjacent unit cell through a unit cell connecting rod, and the upper end outer blade angle of each unit cell is connected with the lower end outer blade angle of the adjacent unit cell through a unit cell connecting rod. The method is used for superstructure vibration reduction design.

The invention relates to the technical field of rotary mechanical vibration control, in particular to a quasi-zero stiffness annular superstructure device and a sea water pump composite vibration isolation system.The quasi-zero stiffness annular superstructure device comprises an inner ring and an outer ring, and the inner ring and the outer ring are connected through a plurality of quasi-zero stiffness one-dimensional structures; the quasi-zero stiffness one-dimensional structure is formed by sequentially arraying a plurality of groups of quasi-zero stiffness cell structures from top to bottom, a gap is formed between every two adjacent groups of quasi-zero stiffness cell structures, the left side and the right side of each gap are respectively provided with a group of cantilever beams, and the tail ends of the cantilever beams are respectively and fixedly provided with mass blocks with different masses so as to generate a local resonance band gap; piezoelectric patches are pasted on the inclined side wall of the quasi-zero-stiffness one-dimensional structure, a shunt circuit is connected, and a band gap is adjusted through the circuit. Compared with the prior art, multiple band gaps can be generated at low frequency on the basis that the bearing capacity is guaranteed, and low-frequency broadband vibration control over the rotating machine is achieved.

The invention discloses an interlayer superstructure electromagnetic-mechanical collaborative design method based on machine learning and a heuristic optimization algorithm, relates to the technical field of material design, and is used for solving the technical problems that the mechanical property of an interlayer superstructure obtained through existing design is poor, and the requirements for strength, stability and durability in practical application are difficult to meet. The collaborative design method comprises the following steps: setting an objective function of an interlayer superstructure, and determining the configuration of the interlayer superstructure to be designed according to the objective function; establishing a proxy model according to a machine learning algorithm, and integrating the proxy model into a heuristic optimization algorithm; generating geometric characteristic variables of the interlayer superstructure in batches; obtaining the mechanical property and the electromagnetic property of the interlayer superstructure; feeding back the mechanical property and the electromagnetic property to a heuristic optimization algorithm to obtain a numerical value of an objective function; and according to the numerical value of the target function, carrying out iterative updating on the geometric feature variables until an optimal solution is obtained, and completing the design.

The invention discloses a load distribution method and system for multi-pier coordination of a scouring damaged beam bridge and a storage medium. The method comprises the steps that horizontal and vertical loads acting on a bridge superstructure are obtained; calculating a load distribution result of a vertical load acting on the upper structure of the bridge on the pier according to the counter-force influence line; calculating the horizontal load which acts on the upper structure of the bridge and is distributed to the pier by adopting an iterative method, namely calculating the pier top displacement according to the latest calculated horizontal load of the pier, calculating the equivalent stiffness according to the latest calculated pier top displacement, recalculating the horizontal load distributed to the pier according to the latest calculated equivalent stiffness, and calculating the horizontal load of the upper structure of the bridge according to the calculated equivalent stiffness. The pier top displacement is the pier top displacement of the pier-pile foundation under the conditions of scouring damage, flood load and vehicle load. According to the method, the influence of scouring damage, flood and vehicle load on load distribution is considered, and the accuracy of full-bridge bearing characteristic analysis is improved.

The invention belongs to the technical field of bridge superstructure installation and construction, and particularly relates to a construction device and method for installing a bridge superstructure through a modular barge combined automatic jacking system. Firstly, the operation platform is formed by splicing the modular barges, then the automatic jacking system and the steel platform are installed on the operation platform, the steel platform is used for loading and supporting a to-be-installed beam section on a beam section splicing and transferring wharf, the modular barges are driven by tugs to combine the automatic jacking system and the to-be-installed beam section to move to a designed erection position, and the beam section is assembled and transported. And the to-be-installed beam section is erected on the beam bottom support through the positioning piles and the anchor mooring system, and installation of the bridge superstructure is completed. The method is simple in installation and construction, and can effectively improve the installation and construction effect of the bridge superstructure. In the installation and construction process of the bridge superstructure, the modular barges are connected into a whole through the multiple sets of cross beams, the influences of water flow and waves can be effectively reduced, and the stability of the modular barges is improved. The device is simple in structure, reasonable in design, convenient to use and operate and good in using effect.

The application belongs to the technical field of aerospace, weapon equipment buffering and energy absorption protection, and particularly relates to a spring-like superstructure capable of repeated and efficient buffering and energy absorption, which is formed by spirally winding hollow tubes or filling tubes with circular, square, hexagonal, concave negative Poisson's ratio, self-locking or other special cross-sectional shapes; by adjusting the distribution forms of geometric parameters such as the spiral angle, polar angle, number of turns, pitch, winding diameter, tube diameter and wall thickness of the structure, the mechanical properties of the structure can be regulated and controlled. Compared with conventional foam, honeycomb and other traditional energy absorption materials, the application can achieve the purpose of efficient buffering and energy absorption, and can achieve the effect of being reusable.

The invention relates to an efficient assembly type steel-concrete composite beam bridge superstructure connecting structure and a construction method, and belongs to the technical field of bridge engineering. Comprising a prefabricated concrete bridge deck, a steel beam, an umbrella-shaped perforated steel pipe connecting piece, a high-strength hook, a wedge-shaped steel accessory, a pi-shaped metal part, an H-shaped high-strength steel accessory, a high-strength bolt and a nut. The wedge-shaped steel accessory is pre-buried in the transverse joint direction of the prefabricated concrete bridge deck slab through a pi-shaped metal part, the bridge deck slab in the transverse joint direction is fastened through an H-shaped high-strength steel accessory, and the H-shaped high-strength steel accessory and the wedge-shaped steel accessory are fastened through a high-strength bolt and a nut; the umbrella-shaped perforated steel pipe connecting pieces are welded to the steel beams, the high-strength hooks are pre-buried in the prefabricated concrete bridge deck in the longitudinal joint direction, the high-strength hooks and the umbrella-shaped perforated steel pipe connecting pieces are hooked tightly after the bridge deck is in place, longitudinal steel bars penetrate through the holes, in the bridge direction, of the umbrella-shaped perforated steel pipe connecting pieces, and finally high-performance grouting materials are poured in the longitudinal joints.

The invention provides a seismic isolation structure AMD control system based on the seismic energy storage principle, and relates to the technical field of structural engineering and damping control. The bottom of the building dissipates energy through the shock insulation support and the hydraulic inerter damper, earthquake input is converted into gravitational potential energy, mechanical energy and electric energy, and the energy storage module supplies energy to the active tuned mass damper arranged on the top of the upper structure. The system monitors structural response in real time through the acceleration sensor and the force sensor, the AMD intelligent control unit calculates and outputs control force capable of reducing upper vibration and generating reverse overturning bending moment, and therefore structural vibration is restrained and the shock insulation support is prevented from being pulled under the strong shock working condition, and the overall anti-seismic performance of the shock insulation structure is remarkably improved.

The application discloses a hoisting method for an ultra-high superstructure unit section of an ultra-large container ship, and is mainly used for hoisting the complete superstructure unit section of the ultra-large container ship. The method solves the problems of the interference and the ultra-highness of the superstructure after the structure of the superstructure is completed, and ensures the safety of hoisting the superstructure under the premise of the complete structure by means of reasonable hoisting methods and strengthened design under the condition that the lifting capacity and lifting height of the gantry crane are limited. The hoisting scheme comprises a lifting ring on a cab deck, structure strengthening, temporary strengthening and a steel wire rope of the gantry crane. The application can solve the problem of the structural integrity of the superstructure, shorten the dock period, reduce the high-altitude operation, and ensure the safety of hoisting the ultra-high superstructure.

The invention relates to the technical field of ship construction, and discloses a container ship module block division method which comprises the following steps: S1, according to a functional system, a hoisting system and a segmented supporting tool, dividing a container ship into a cabin module block, a cargo hold module block, a bow module block and a superstructure module block; s2, the cabin module block is divided into a front cabin subsection, a rear cabin subsection, a cabin upper cover subsection and a rudder upper cover subsection by taking base distribution as a benchmark; s3, dividing the cargo compartment module block into a bottom section, a broadside section and a transverse bulkhead section by taking the length of the container as a reference; s4, dividing the bow module block into a bow lower ring section, a bow upper ring section, a bow upper section and a bow lower section by taking distribution of a liquid tank base and a lateral thrust tank base as a reference; and S5, taking the integrity of the cabin as a benchmark, and dividing the superstructure module block into one or more sub-segments. The weight and the height of each module block are increased, the number of segments included in each module block is reduced, and the construction period in the dock is shortened.

Described is a device for offshore arranging of a wind turbine or components thereof on a foundation present at sea. The device includes an elongate superstructure connected releasably to the foundation and extending between a lower surface and an upper surface thereof in the vertical direction from the foundation. The superstructure has an internal space which is accessible to a tower section of the wind turbine and in which the tower section can be received. Further present is a horizontally displaceable supply structure for a tower section. The supply structure is configured to move a tower section coupled thereto from outside the internal space into the internal space by a horizontal displacement. An engaging structure, received for vertical displacement in the internal space, is configured to lift an engaged tower section in the internal space by a vertical displacement, whereby sufficient space is created under the relevant tower section for receiving another, underlying tower section in the internal space.

The invention discloses an existing bridge high-precision three-dimensional reconstruction method based on laser point cloud data, and relates to the technical field of bridge engineering digital reconstruction. Multi-source laser point cloud cooperatively collects detail point cloud of key components of an existing bridge, point cloud of a bridge floor and an upper structure and point cloud of a shielding part; multi-source point cloud coarse registration is completed based on a target ball of a preset specification, and then fine registration is carried out by adopting an improved iterative nearest point algorithm of integrated normal vector constraint; and adopting a layered denoising strategy to carry out statistical filtering denoising on the flat area, and carrying out adaptive radius filtering on the vulnerable area to reserve cracks and peel off disease points. Through collaborative design of multi-source acquisition, precise processing, intelligent segmentation, parameterized modeling and hierarchical verification, data integrity improvement, consideration of point cloud processing precision and disease retention, semantic segmentation and instance identification precision optimization, BIM model engineering value improvement and achievement adaptability enhancement are realized.

The invention discloses a wave-absorbing superstructure multi-parameter collaborative design method based on RGB three-channel coding, and belongs to the field of electromagnetism. Through collaborative design of material-size-patterned metasurface and fusion of multiple parameters through RGB coding, a design space is expanded from a single dimension to a multi-dimensional space, more potential high-performance wave-absorbing superstructure design schemes can be excavated, and abundant possibilities are provided for innovation of wave-absorbing materials. After the forward prediction model is trained and optimized by a data set sample, the prediction accuracy of the wave-absorbing reflectivity of the wave-absorbing superstructure reaches 95% or above, and a reliable basis is provided for reverse design. Under the assistance of transfer learning, the reverse design model enables the generator model to converge quickly and generates wave-absorbing superstructure design highly matched with the target reflectivity, and efficient design of the multi-parameter wave-absorbing superstructure is achieved. The RGB image coding mode and the reverse design method constructed by the invention are applied to optimization of different wave-absorbing superstructure configuration scenes, and multi-parameter collaborative rapid optimization of the wave-absorbing superstructure is realized.

The utility model relates to an assembly combined type turnover overhanging discharging platform which comprises two main beams arranged in parallel at intervals, a plurality of secondary beams, protective guard plates, installation hanging rings, unloading hanging rings, embedded traction round steel and steel wire ropes, the secondary beams are arranged between the two main beams at intervals, and the two ends of each secondary beam are detachably connected with the two main beams through bolts respectively; one ends of the two main beams are fixed to a lower-layer building structure through U-shaped anchor bolts, the other ends of the two main beams extend out of the lower-layer building structure and are arranged in a suspended mode, structural plates are laid on the two main beams located outside the lower-layer building structure, and the protective fence plates are detachably installed on the upper surfaces of the main beams through bolts. Mounting lifting rings and unloading lifting rings are further arranged on the two main beams outside the lower-layer building structure, and the unloading lifting rings are connected with pre-embedded traction round steel on the upper-layer building structure through steel wire ropes. The overhanging type unloading platform effectively solves and optimizes the problem that an overhanging type unloading platform is difficult to transport, and the overall stability and safety of the unloading platform are improved.

According to the high-toughness superstructure manufacturing method based on gradient bionic spiral construction, a composite material superstructure with the excellent mechanical property is constructed through the synergistic effect of gradient bionic spiral laying layer design and a Z-pin anchoring technology, in a gradient bionic spiral laying layer, the spiral angle changes in a gradient mode, Z-pin anchoring penetrates through a composite material laminated plate, and the Z-pin anchoring technology is used for anchoring the composite material laminated plate. According to the manufacturing method, a three-dimensional reinforced network is formed, the interlayer strength and impact resistance are remarkably improved, the high-toughness superstructure is manufactured through an autoclave forming process, cooperative reinforcement of gradient bionic spiral construction and a Z-pin anchoring effect is achieved, and the prepared superstructure has high specific strength, high toughness and excellent layering resistance.

The invention relates to the technical field of bridge engineering, in particular to a mixed ultra-high performance concrete continuous structure system bridge and a construction method thereof. The mixed type ultra-high performance concrete continuous structure system bridge comprises bridge piers and a bridge superstructure, and the bridge superstructure comprises a web hollowed-out section box girder and a solid web section box girder; the bridge adopts a mixed large-span prestressed ultra-high performance concrete continuous structure system bridge, so that the weight of the bridge is reduced, and the span capacity of the bridge is greatly improved; the structure formed by the first pi-shaped beam, the groove beam and the stand column is designed, the construction bending moment is balanced in combination with external prestressing force, a certain thickness of each part is guaranteed, the problems of local buckling, shear instability and overall instability are effectively avoided, and the structure is more stable for the cross section distortion problem. Prestressed tendons are reasonably arranged and pre-tightening force is applied by means of the active constraint effect of prestress, so that buckling deformation of the cross section is effectively restrained.

The invention relates to a passenger vessel (1) comprising at least one superstructure (3) formed by a plurality of decks (P0-P5) comprising decks (P1-P4), each deck having at least one channel (5) in the longitudinal direction, the invention relates to a system (1) comprising a plurality of aisles (5), and said aisles serving a first set of facilities (40), such as cabins located on the port side, and a second set of facilities (42), such as cabins located on the starboard side, characterized in that at least one set of facilities (40, 42) of said sets of facilities is provided with structural bulkheads (70) parallel or substantially parallel to said aisles (5), said structural bulkheads (70) being arranged between these facilities (40, 42). 42) in the space occupied by the housing.

The present invention relates to the field of new material technologies, a multi-material composite superstructural unit capable of multi-state switching, a superstructure, and an application of the superstructure. The superstructural unit includes a soft matrix material unit and a hard matrix material unit. The hard matrix material unit is embedded inside the soft matrix material unit, and the difference in elastic modulus between the soft matrix material unit and the hard matrix material unit is more than two orders of magnitude. The superstructure is a periodic arrangement of two adjacent multi-material composite superstructural units. The beneficial effect of the present invention is that by combining flexible materials and rigid materials in a single structural unit, it becomes possible to achieve multi-stability and lightweight at a small scale.

The invention discloses a variable-stiffness friction slippage anti-swing three-dimensional shock isolation device and a shock absorption method thereof, and belongs to the technical field of building shock isolation and shock absorption. According to the technical scheme, the vibration damper comprises a top plate, a horizontal rubber support, a center mass block, a spring support, a limiting plate, a friction plate, a vertical rubber support and a bottom plate. The multi-stage self-adaptive rigidity mechanism has the beneficial effects that the friction material is arranged between the limiting plate and the friction plate, and the friction sliding position and the motion state can be controllably adjusted by adjusting the pre-tightening force of the bolt, the friction coefficient and the rigidity of the vertical rubber support, so that the multi-stage self-adaptive rigidity mechanism is formed; and the shock insulation and self-resetting performance of the structure under the action of horizontal and vertical earthquakes is obviously improved. The device has good three-dimensional shock insulation and swing resistance, and is simple in structure and convenient to install and maintain. The dynamic response of the upper structure applying the device under the earthquake action can be effectively inhibited, so that the structural safety and the use comfort are guaranteed.

The present application belongs to the technical field of bridge wind tunnel test device, and provides a kind of wind tunnel test device simulating nonlinear vibration of bridge structure, including rigid model, rigid rod, rigid circular arc suspension arm, linear tensile spring, nonlinear elastic element and light high-strength fine rope.Nonlinear elastic element can adopt cable structure, membrane structure, nonlinear tensile spring, mechanical super material or superstructure.By designing the nonlinear stiffness characteristics of nonlinear elastic element, the layout mode and the combination mode of linear tensile spring, various target nonlinear stiffness modes can be realized to carry out large amplitude vertical torsional coupled flutter test of bridge structure under nonlinear stiffness.In the process of large amplitude vibration of model, the center hanging point of nonlinear elastic element and linear tensile spring can always maintain vertical displacement and deformation, and the device can ensure stable stiffness, damping, mass and mass moment characteristics.

A crane (10) includes a carrier unit (20) having a chassis (22), tires (24) connected to the chassis, a carrier deck (26), and outriggers (28). A superstructure (30) is mounted on the carrier unit, the superstructure including a telescopic boom (38). A slope sensor (80) is operably connected to the carrier unit and configured to detect pitch and / or roll of the carrier unit during a lifting operation. The crane further includes a system (50) for monitoring a load lifted by the telescopic boom. The system is configured to: determine a current load lifted by the telescopic boom; receive pitch and / or roll information of the carrier unit from the slope sensor; adjust coordinates of the crane in a coordinate system based on the pitch and / or roll information; use the adjusted coordinates to determine a transformed operating radius; and compare the lifted load to a rated capacity at the transformed operating radius.

The application discloses a bridge substructure modeling scheme generation method and device, equipment and medium, relates to the field of bridge engineering technology, and comprises the following steps: obtaining bridge superstructure design input parameters, constructing substructure design task information, generating design parameters by using a large language model reasoning, and then automatically generating a modeling script and performing structure response calculation. According to the calculation result, different modeling strategies are judged and executed, and finally a target modeling scheme meeting the requirements is intelligently generated, the design parameter generation and automatic modeling of the bridge substructure in a non-standard bridge type scene are realized, and the design efficiency and accuracy are improved.

The invention provides a cabin door sealing device of a main hull and superstructure elastic connection transition area, which comprises a main hull, a superstructure and a transition area, the transition area is positioned between the main hull and the superstructure, and the cabin door sealing device is characterized in that a door opening structure is arranged on the main hull; a first opening is formed in the position, corresponding to the door opening structure, of the superstructure, the door opening structure penetrates through the first opening, and a cabin door is installed on the door opening structure; a sealing assembly is arranged at the joint of the main hull and the external structure of the superstructure and used for preventing an external liquid medium from entering the transition area. The cabin door is installed on the door opening structure penetrating through the first opening, so that the cabin door does not make direct contact with the superstructure, and the relative displacement between the main ship body and the superstructure does not affect the cabin door only installed on the main ship body; meanwhile, external liquid media are prevented from entering the transition area through the sealing assembly.