503 results about "Rigid frame" patented technology

The invention relates to an intelligent continuous rigid frame bridge construction period deformation prediction system. The system comprises a construction data acquisition module, a data primary processing module, a feature extraction model construction module, a mode special model construction module and a deformation prediction module. According to the invention, original data is obtained through data acquisition; a data primary processing method of data standardization, weighted time sequence alignment, effect decoupling and data set segmentation is adopted; a multi-branch deep learning model is adopted as a feature extraction model, the time dynamics, the spatial topological relation and the physical mechanics priori of bridge structure response are integrated, and the completeness and the discrimination ability of feature expression are remarkably improved; a progressive strategy of firstly extracting and clustering features and then grouping and independently modeling is adopted, so that not only is the specificity of different construction stages fully considered, but also the prediction precision is improved through targeted model optimization, and the problem of mode diversity in a complex construction system is solved.

The invention discloses a continuous rigid frame aqueduct cantilever casting hanging basket stress monitoring and early warning method and system, and relates to the technical field of hydraulic engineering construction.The method comprises the steps that stress monitoring points and displacement monitoring points are arranged, and a stress-displacement double-system collaborative sensing model is constructed; carrying out double-channel vibration noise separation on the stress signal and the displacement signal which are collected in real time; respectively calculating wet weight values based on a stress-wet weight nonlinear mapping relation and a displacement-wet weight geometric inversion model, and verifying the consistency of wet weight value measurement results through a residual checking mechanism; constructing a multi-source driving safety threshold model, and generating a dynamic safety threshold in real time; and when the monitored wet weight value exceeds the dynamic safety threshold value, triggering graded early warning and executing risk control measures. According to the stress-displacement dual-system independent measurement and cross checking method, through a vibration frequency domain compensation algorithm, vibration interference is suppressed, a multi-source driving safety threshold model is constructed, and high-precision monitoring of the stress of a continuous rigid frame aqueduct cantilever casting hanging basket is achieved.

The invention relates to a planetary double-spoke cutterhead device for soft soil stratums, which comprises a rigid cutterhead frame, and the rigid cutterhead frame comprises two main spokes which are oppositely arranged in the radial direction and an auxiliary spoke which is arranged between the two main spokes; the main spokes and the auxiliary spokes are fixedly connected to the driving connecting base. The main spokes and the auxiliary spokes are fixedly connected to the driving connecting base. The scraping cutters are fixedly mounted on the main spokes and the auxiliary spokes; the output end of the planetary transmission mechanism is connected with the driving connecting seat, and the planetary transmission mechanism is configured to drive the driving connecting seat and drive the rigid cutter head frame to execute a compound planetary motion; the simple rigid frame is adopted to fix the scraping cutter, so that the structure of the cutter head is extremely simple, the extremely high aperture ratio is obtained, and the technical problem that mud cakes are easily formed on the cutter head in a soft soil stratum is effectively solved; and meanwhile, the framework is driven to perform specific planetary motion, so that the full-section excavation of the triangular section is successfully realized, and the high aperture ratio and the special-shaped section forming capability are integrated.

The invention relates to a device (1) for handling a drum and for unwinding a material wound onto the drum, wherein the handling device (1) comprises a rigid frame (2) comprising two side members (3) held at a distance from each other, and in which: - each side member (3) supports a wheel (4); - each wheel (4) is mounted, independently of the other wheel (4), so as to be free to rotate relative to the frame (2) about an axis (11) of rotation common to both wheels (4) and orthogonal to the side members (3); - each side member (3) is provided with a suspension member (5) arranged so as to be able to be fitted into an axial opening of the drum, wherein the suspension members (5) are suitable for being able to hold the drum at a distance from the ground so as to allow the drum to rotate on itself according to the axis of symmetry of the drum and to unwind the material wound onto the drum.

The lightweight columbarium comprises a rigid frame made of a frame material, a number of decorative panels made of a decorative panel material, panel attachments for attaching the decorative panels to the rigid frame, and an enclosure defined within said decorative panels and said frame, for receiving a funeral urn. The frame material is less fragile than the decorative panel material and allows the frame to provide structural rigidity to the columbarium at less weight than if only the decorative panel material were used. The columbarium may be transported on a ritual transporter comprising a columbarium bed for carrying the columbarium and handles attached to the columbarium bed for transporting the transporter. The columbarium may be stored in a crate comprising a rigid protective shell attached to the columbarium externally thereof for protecting the columbarium against impacts; and an opening provided in the protective shell that is aligned with the bottom of the columbarium. The columbarium may be removed from the crate and installed on a base using a prop sized to fit within a shell opening in the crate so as to abut against the bottom of the columbarium and to protrude beyond the shell, for allowing the columbarium to rest on prop when the prop rests on the ground for facilitating egress of the columbarium from the crate and installation of the columbarium on the base.

A personal mobility assistance device includes a frame that includes a first ridged component moveable relative to a second ridged component by a linkage mechanism. The first rigid frame component has a first light emitter mounted in a first opening in the first rigid frame component and the second rigid frame component has a second light emitter mounted in a second opening in the second rigid frame component. The first light emitter is connected to a first component conductor portion of a conductor within the first rigid component and the second light emitter connected to a second component conductor portion of the conductor within the second rigid component. A conductor connection mechanism within the linkage mechanism includes a plurality of contacts that electrically connect the second component conductor portion to the first conductor portion when the linkage mechanism is in at least one position.

The invention relates to the technical field of mold machining, in particular to a numerical control drilling machine for mold assembly machining. Comprising a base and a supporting seat installed on the base. A drilling mechanism is arranged on the supporting seat; the double twist drills are driven by the driving part to achieve synchronous back-to-back drilling in a rigid frame formed by the fixed seat and the sliding seat, the efficiency bottleneck of single-spindle sequential operation is broken through in a parallel machining mode, and machining vibration is effectively restrained by forming a force closed loop through generated reverse cutting force; meanwhile, the chip removing part is used for removing chips through extrusion supporting and moving of the push rod in the U-shaped chip groove of the twist drill, directional spraying of the spraying pipe is matched, automatic removing, cooling and lubricating of the chips are achieved, and therefore the technical problems of low efficiency, vibration deflection and chip winding existing in circular mold drilling are solved cooperatively on the whole.

The application belongs to the technical field of bridge intelligent construction, and specifically discloses a high-pier large-span continuous rigid-frame bridge pier settlement displacement monitoring method and system, which comprises the following steps: collecting image sequences at a main target of a pier and at a reference point sub-target under a main girder construction condition; processing the images, including low-illumination image enhancement and high-precision segmentation of optical marker points under a complex background; identifying the optical marker point center coordinates at the main target and the sub-target based on an adaptive threshold gradient Hough transform (ATGHT), extracting the displacement values at the main target of the pier and the reference point sub-target, and then compensating for the camera self-motion measurement error, so as to obtain the pier settlement value of the main girder in the cantilever construction process. The application utilizes a non-contact device to monitor the pier settlement displacement in the main girder construction stage, realizes non-contact, multi-measurement-point, high-precision and high-efficiency monitoring of the pier settlement displacement of the super-high-pier large-span continuous rigid-frame bridge under a complex background, and has the advantages of low cost, convenient use and flexible measurement point selection.

The invention discloses a method for testing compression performance through a testing machine, which comprises the following specific steps: placing a sample on the upper end surface of a compression main body, and enabling two end surfaces of the sample to be parallel; after the extensometer is fixed, the testing machine is reset, and the extensometer is reset; starting the testing machine for compression, synchronously acquiring sample load data and average deformation data on two sides by the extensometer, transmitting the data into the testing machine, generating a stress-strain curve by the testing machine, and reading the compression yield strength, the compression elastic modulus and the compression strength from the curve. The extensometers on the two sides are directly hung between the upper cover and the compression main body to form a closed symmetrical measurement chain, so that knife edges on the two sides are located in the same rigid frame, bending deformation is offset, the reading difference is reduced to one tenth of the original value, meanwhile, a load line and a measurement line coincide, a secondary force transmission path is avoided, and the measurement accuracy is improved. And the flexibility of the rack only affects the overall displacement without changing the relative deformation in the gauge length of the extensometer, so that the repeatability of the elastic modulus is remarkably improved.

A portable stand includes a rigid frame portion, an actuator portion synchronously coupled to a transfer shaft, a plurality of rotatable leg assemblies, a plurality of transfer shaft pulleys corresponding to the respective leg assemblies, and a plurality of leg flexible connectors synchronously coupling the respective leg assemblies to the transfer shaft through the transfer shaft pulleys. A portable stand may include a linear actuator coupled to a transfer shaft by a leg pull cam, and the transfer shaft synchronously coupled to a plurality of rotatable leg assemblies by a plurality of corresponding transfer shaft pulleys acting on corresponding flexible leg connectors.

Insulated panels having suitable surface members separated by an inner layer of insulated foam are used for the walls and as structural members for the floor and roof of a building structure. A rigid frame supports the wall, floor and roof insulated panels. The wall insulated panels are supported on the exterior of the frame by rigid brackets with the insulated panels being suitably flashed or capped.

The invention provides a long-term deformation prediction method and system for a large-span rigid frame bridge, and relates to the technical field of bridge deformation prediction. The method aims at solving the problems that in the prior art, a prediction method insufficiently considers the coupling effect of geometric nonlinearity and the concrete shrinkage and creep effect and lacks the dynamic response capacity to damage events in the operation period, and consequently the deviation between a prediction result and the reality is large. According to the method, synchronous coupling analysis of the two effects is realized by establishing a space finite element model and constructing a structure balance equation which simultaneously considers the geometric nonlinearity and the shrinkage and creep effect; through reference simulation and damage event identification based on a probability distribution model, dynamic damage correction and simulation restart are carried out on the model in combination with monitoring data, a closed-loop prediction mechanism for identification, correction and restart is constructed, the precision and accuracy of long-term deformation and internal force prediction are effectively improved, and the adaptability in a complex scene is improved.

The invention relates to the technical field of water conservancy projects, in particular to a design method of a continuous rigid frame aqueduct. Comprising the following steps that the building position of the continuous rigid frame aqueduct is determined, and the aqueduct span arrangement of the continuous rigid frame aqueduct is drawn up according to the building position; hole span arrangement, side span and main span are determined according to a preset side-mid span ratio range of the continuous rigid frame aqueduct; the root beam height and the closure section beam height are determined according to the main span and the preset height-span ratio range of the continuous rigid frame aqueduct; the thickness range of a plate, the length of a pier top cast-in-place section, the length of a closure section and a groove body bottom curvilinear equation are determined, and a suspended casting section is segmented; the center distance of the double-limb thin-wall pier and the center distance of double limbs are determined; arranging prestressed steel beams for the continuous rigid frame aqueduct in the longitudinal direction and the transverse direction respectively; and constructing a finite element model and carrying out finite element analysis. According to the design theory and method of the continuous rigid frame aqueduct, rapid design of the continuous rigid frame aqueduct can be achieved, and a basis can be provided for standard compilation.

The invention provides an intelligent construction safety monitoring system and method for a U-shaped stacked box rigid frame aqueduct, and the system is suitable for the U-shaped stacked box rigid frame aqueduct for hanging basket construction, and comprises a sensing layer which is used for collecting the stress state of a hanging basket; the environment monitoring unit is a micro weather station mounted on an upper cross beam of the hanging basket; the posture monitoring unit is used for monitoring the lateral and longitudinal inclination angles of the hanging basket in real time; the execution layer comprises a catenary anti-overturning device arranged behind the rear anchor point of the hanging basket, the catenary anti-overturning device comprises a hinged steel chain, and the hinged steel chain and the foundation anchoring end form a catenary structure; the control layer comprises an edge computing terminal and a threshold library in which early warning thresholds are stored, and the edge computing terminal is used for receiving the data of the sensing layer in real time, performing multi-source data fusion analysis and judging whether an early warning or emergency mechanism is triggered or not according to an analysis result; and the interaction layer comprises a visual platform, and the visual platform is used for carrying out fusion display on the monitoring data and the BIM model and presenting the risk level in a color coding mode.

A ride-on power trowel has first and second engines mounted to a rigid frame. Each of first and second drive loops have a hydraulic pump powered by such an engine and a drive motor powered by the hydraulic pump. Rotor assemblies are coupled to the drive motors and configured to contact a concrete surface beneath the frame. A feedback controller sets rotor speed in each assembly to a power limited speed based on loads sensed in the drive loops. The power limited speed is an estimated maximum rotor speed achievable for the highest sensed load, which may be affected by operating data received from the engine associated with the highest sensed load.

The invention discloses a V-shaped pier continuous rigid frame non-support construction method, belongs to the technical field of bridge construction, and solves the problem of large occupied space of existing V-shaped pier construction. No floor supporting frame is arranged under the bridge, roads and channels under the bridge are not occupied, and vehicle passing or ship navigation under the bridge is not affected by bridge construction; according to the method, a constructed structure serves as a beam body pouring supporting platform, no support is arranged under a bridge, and therefore the temporary pile foundation engineering amount and the support engineering amount are reduced, the manufacturing cost is greatly saved, and economic benefits are remarkable; compared with an existing hanging basket construction method, the hanging basket construction method does not need a supporting frame, the beam body is poured through a hanging basket cantilever, only the bailey beam is needed, and a hanging basket is not needed. Compared with a bailey beam, the hanging basket is customized, the bailey beam only needs to be leased and assembled, the cost is low, meanwhile, the construction of the hanging basket has certain technical difficulty, and the construction of the bailey beam is relatively low in technical difficulty, small in risk and high in safety.

A device for retaining a solid sorbent includes a frame having a first rigid frame portion and a second rigid frame portion, and a non-rigid and porous structure forming one or more walls of a sorbent compartment having a selected shape, the sorbent compartment defining a volume for retaining the loose solid sorbent. The porous structure includes a first end attached to the first rigid frame portion and the porous structure is held in tension, the tension causing the porous structure to retain the selected shape when the loose solid sorbent is held in the sorbent compartment. The porous structure is held in tension by attachment to the first rigid frame portion and attachment to the second rigid frame portion, and / or by attachment to the first rigid portion and a weight of the loose solid sorbent.

A apparatus including: a silicone-based body oriented down a central axis, the silicone-based body comprising: a rigid frame having a top axial surface and a bottom axial surface, an outer surface, and a substantially arcuate inner surface; and a plurality of gas-permeable, flexible film membranes connecting the inner surface about a perimeter of the rigid frame at the top axial surface and the bottom axial surface respectively to define an internal void within the body, wherein the rigid frame has a plurality of corrugations along the top axial surface and the bottom axial surface, and wherein the internal void provides for a medically, biologically, chemically, or pharmaceutically active environment.

The utility model relates to the technical field of vehicle-mounted articles, in particular to a two-section type vehicle-mounted refrigerator rack which comprises a supporting frame, a sliding rail assembly movably connected with the supporting frame and a tray movably connected with the sliding rail assembly and used for carrying a refrigerator, and the supporting frame comprises a back plate and two side plates fixed to the two ends of the back plate respectively. The reinforcing plates are fixed to the two sides of the tray and the inner sides of the side plates, the connecting blocks are movably connected with the reinforcing plates, the reinforcing plates are provided with a plurality of rolling wheels arranged side by side, the front face and the back face of each connecting block are provided with first sliding grooves and second sliding grooves matched with the rolling wheels, and the rolling wheels are embedded into the first sliding grooves and the second sliding grooves to roll. The connecting block is arranged at the connecting position of the tray and the supporting frame, the reinforcing plates with the rollers are arranged on the tray and the side plates, the rollers are movably connected with the connecting block, and a rigid frame structure of the side plates and the back plate is matched, so that the structure is simplified, the production cost is reduced, and the structural rigidity can be improved.

The invention discloses a large-span continuous rigid frame light-weight multifunctional platform hanging basket structure suspended pouring and maintenance construction method. The method comprises the steps that I, construction preparation is conducted; iI, carrying out cantilever casting construction on the hanging basket; and III, box girder construction and maintenance. The surface of the box girder can be comprehensively and uniformly cured through the intelligent spraying and curing system, concrete is hardened under the appropriate temperature and humidity conditions, the quality of the concrete is effectively guaranteed, the overall strength and durability of the box girder are improved, corresponding swing sprayers are arranged at different positions of the spraying and curing system, and the spraying and curing efficiency is improved. All-directional and uniform curing of the box girder is achieved, it is guaranteed that concrete is hardened under the appropriate humidity condition, the strength increase and durability of the concrete are improved, the side face joints of the box girder are scabbled after the concrete strength reaches a certain standard, the cohesive force between new concrete and old concrete is enhanced, and the structural integrity is guaranteed.

The invention relates to a gravity type anchoring super-long cableway bridge in a complex wind field alpine and canyon area and a construction method, which are characterized by comprising the following construction steps: step 1, construction preparation; step 2, rock anchor cable construction; thirdly, concrete anchorage pier construction is conducted; fourthly, I-shaped steel distribution anchor beams are installed; step 5, mounting a bearing cable; sixthly, a handrail steel rope is installed; seventhly, bridge deck system cross beams are installed; 8, mounting a bridge floor steel wire mesh; ninthly, angle steel guardrails are installed; and tenthly, wind cable construction is conducted. The cableway bridge is constructed above the riverway in the alpine and gorge area of the complex wind field to assist in construction of rigid frame bridge beams and pier columns, and the problems that no construction road exists on cliff walls on the two sides of the riverway, water flow kicks rapidly in the waterlogging period, and transportation of materials, personnel and small construction machines cannot be conducted are solved.

The present application relates to the technical fields of bridge engineering, and discloses a rigid frame bridge main girder closure gap top force applying device and closure construction method, which comprises a supporting assembly, a top locking assembly, and a main girder closure construction method based on corresponding facilities. The present application has the following advantages and effects: the supporting assembly is arranged between the top plate and the bottom plate, the supporting beam of the supporting assembly is supported on the concrete of the top plate and the bottom plate, the supporting beam evenly spreads the huge locking force to the top plate and the bottom plate of the main girder through the contact surface with the concrete of the top plate and the bottom plate, and compared with the direct support on the top plate and the bottom plate and the web of the main girder, or the support on the corbels and the embedded parts, or the force transmission mode through the cast concrete tooth blocks, the present application has the advantages of light structure, clear stress, strong bearing capacity, simple operation, no influence on the closure gap concrete pouring, no tensile stress cracks on the main girder, and low cost.

This invention relates to the field of landscape bridge technology, and discloses a V-shaped pier-truss cable-stayed composite bridge structure and its construction method. The V-shaped pier-truss cable-stayed composite bridge structure includes piers, main beams, bridge towers, and cables. The piers include V-shaped main piers. The load of the main beam is transferred to the truss structure via the cables through the cable-stayed towers. The truss structure then transfers the force to the V-shaped main piers. The V-shaped piers provide support and constraint to the main beams through their rigid frame action. Thus, through the interconnection and support between the rigid frame structure, truss structure, and cable-stayed structure, the overall stiffness of the combined bridge structure is greater than the sum of the stiffnesses of the individual structures. This optimizes the stress on the cable-stayed towers and the overall bridge structure, allowing the V-shaped pier-truss cable-stayed composite bridge structure to reduce the tower height compared to existing cable-stayed bridges for the same span, thereby meeting the building height requirements of urban planning or enabling it to be suitable for larger bridge spans.

This invention relates to an integrated demolition and construction method for rebuilding a suspension bridge on the same site after demolishing an old rigid frame bridge. The method involves first demolishing the old bridge, then constructing the anchorages, main towers, and side spans of the new suspension bridge, installing the main cables and cable-mounted cranes, and using the cable-mounted cranes to dismantle the closure section of the middle span, the side spans, and the cantilever of the main beam of the middle span of the old bridge, and hoisting the steel box girder of the new suspension bridge. Simultaneously, crawler cranes are used to sequentially dismantle the closure section of the side spans, the cast-in-place section of the side spans, and the side piers of the old bridge. This invention allows for overlapping and simultaneous demolition and construction, which helps shorten the construction period. Utilizing the old bridge deck as a traction platform for the pilot cable of the new suspension bridge across the river does not affect navigation and saves costs. Using the cable-mounted cranes from the new suspension bridge construction for demolition ensures high construction efficiency and safety.

The utility model relates to the technical field of steel frame reinforcement, in particular to a prestressed suspension cable structure for reinforcing a portal rigid frame, which comprises a main suspension cable, two ends of the main suspension cable are connected with main support rods, the main support rods are positioned at positions, close to steel columns, of steel beams, the main support rods are fixedly connected with the steel beams, the main suspension cable is connected with multiple sections of steel cables, and one ends, away from the main suspension cable, of the steel cables are connected with the steel beams. And the steel cable and the main suspension cable are in a tensioning state, so that the effects of reinforcing the portal rigid frame and not influencing the effective space in the portal rigid frame room are achieved.

To provide a solar panel.SOLUTION: A solar panel, comprising a power generation assembly (1100) and a wire (1200), wherein the power generation assembly (1100) comprises a rigid frame (11) provided with a receiving hole, a cell sheet (12) arranged in the receiving hole, and a back plate (13) arranged in the receiving hole and located on the cell sheet (12), and an adhesive film (1600) is arranged between the back plate (13) and the back plate (13); An insulating plate (14), wherein the conducting wire (1200) is disposed between the insulating plate (14) and the back plate (13).SELECTED DRAWING: Figure 1

The application discloses a constant-tension-based textile multidirectional tensile strength automatic testing device and method, relates to the tensile strength detection technical field, and comprises a rigid frame system; a high-elastic fabric optical response mechanism is integrated on a double-column portal frame of the rigid frame system and is used for reacting fiber damage processes through light transmittance and light spot change of the fabric; the high-elastic fabric optical response mechanism comprises a sealed light isolation component, a light source component and an imaging component; the light source component comprises a pulse LED light source array, a lampshade and a horizontal movement driving unit which are equidistantly arranged along a fabric stretching direction. The application improves the prior art which can only record the limit value when a sample is completely broken and cannot capture microcracks generated by fiber step-by-step failure in a stretching process when the fabric tensile strength is detected. The application has the advantages that the fiber breaking process in the fabric can be directly reflected through light spot change formed by light penetration of the fabric when the fabric tensile strength is detected.

This invention provides a high-precision, rapid positioning device for cable guide tubes, comprising a rigid frame and a cable guide tube body, and two positioning device bodies symmetrically arranged on the rigid frame. The two positioning device bodies are located at the upper and lower openings of the cable guide tube body, respectively, with the upper positioning device body higher than the lower one. The cable guide tube body is suspended on the two positioning device bodies. Each positioning device body is equipped with a left-side mileage control mark, an offset control mark, and a right-side mileage control mark for positioning. Positioning is achieved by using left-side, offset, and right-side mileage control marks on the positioning device bodies, eliminating the need for self-made auxiliary positioning covers and avoiding the impact of machining errors of pipe fittings or other components on positioning accuracy.

The invention relates to the technical field of building formworks, and discloses a concrete component pouring mold which comprises two pouring side plates used for bearing poured concrete after being enclosed, a plurality of connecting assemblies are installed at the joint of the two pouring side plates, and supporting assemblies used for keeping the pouring side plates stable in the pouring process are arranged outside the pouring side plates. The surface of the supporting assembly is further provided with a vibration assembly used for conducting vibration defoaming on poured concrete and a driving assembly used for driving the vibration assembly to longitudinally ascend and descend. According to the supporting assembly, the pouring side plate is enclosed through the four supporting rods, the supporting rods are matched with the supporting plate to form a rigid frame structure, meanwhile, the pouring side plate is restrained in an auxiliary mode through clamping connection of a lifting groove and a lifting disc, and the problems of top shaking and deformation caused by concrete side pressure during high-size pouring are effectively counteracted; it is ensured that the section size and perpendicularity of the component meet design requirements, and the defects that the top of a traditional die expands outwards and the size is out of tolerance are overcome.

The invention relates to the technical field of magnetic material linear cutting, in particular to a three-axis machining forming device based on magnetic material linear cutting, which comprises a cutting machine, a rack and three rollers, a cutting line is wound on the three rollers, a lifting rack is further mounted in the cutting machine, a plurality of tools are mounted on the lifting rack, a rigid frame is placed on the tools, and the rigid frame is connected with the cutting machine. The three-axis machining forming device comprises a rigid frame, a magnetic blank is placed on the rigid frame, limiting frames are arranged on the two sides of the magnetic blank, a plurality of first rubber rollers rotationally connected with the limiting frames are installed on the limiting frames, and driving parts are symmetrically arranged in the rigid frame. The limiting frame automatically descends and ascends in the cutting process in cooperation with the linkage effect of the driving part and the arc-shaped protrusion; and the first rubber roller is in contact with the side wall of a sheet formed after cutting, continuous lateral supporting is provided, and the sheet is prevented from toppling over under high-speed movement of a cutting line and disturbance of cutting oil.