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232 results about "Cable net" patented technology

Photovoltaic flexible support

The invention belongs to the technical field of photovoltaic supports, and particularly relates to a photovoltaic flexible support which comprises two edge supporting pieces, at least two assembly fixing cables, an assembly bearing cable, at least two wind-resistant frames and a ground anchor mechanism, and under the action of the wind-resistant frames, the assembly fixing cables and the assembly bearing cable can form a stable cable net structure. When a wind load acts on the cable net structure, force is transmitted to the wind-resistant frame through the assembly fixing cable, and then the wind-resistant frame distributes and transmits the force to the assembly bearing cable and the ground anchor mechanism, so that the wind resistance of the photovoltaic flexible support can be improved; therefore, the wind load is effectively dispersed and directly guided into the ground, the large-amplitude flutter and distortion of the cable net structure under the wind pressure are further inhibited, and the dynamic stability and the anti-fatigue performance of the whole photovoltaic flexible support are improved.
Owner:SUZHOU JSOLAR INC

Suspension cable soft platform formwork structure for silo conical shell construction and construction method

The invention discloses a suspension cable soft platform formwork structure for silo conical shell construction and a construction method, and relates to the technical field of silo conical shell construction.The formwork structure comprises a suspension cable net system, a formwork supporting system and an intelligent monitoring system.The suspension cable net system comprises main cables and auxiliary cables which are orthogonally arranged; the main cables are radially distributed along the silo top of the silo body, and the auxiliary cables are annularly arranged along the silo top of the silo body in a closed mode. The formwork supporting system comprises an auxiliary scaffold board and a full supporting frame which are arranged in the suspension cable net system, the upper portion of the full supporting frame is of a circular truncated cone structure forming a silo conical shell, a conical shell side wall mold is arranged on the arc face of the circular truncated cone structure, and a conical shell silo top mold is arranged on the upper bottom face of the circular truncated cone structure. The intelligent monitoring system comprises a load sensor and a tilt angle sensor. According to the method, through dynamic coupling of the orthogonal suspension cable net and the modular supporting system and combination of an intelligent monitoring system, precise control over the construction process is achieved, the steel consumption is reduced, the construction period is shortened, and safety and adaptability are improved.
Owner:CHINA CONSTR EIGHTH ENG BUREAU HUAZHONG CONSTR CO LTD

Large-opening spoke cable dome space structure system and construction method thereof

The invention provides a large-opening spoke cable dome space structure system and a construction method thereof, and relates to the technical field of building structure construction.The large-opening spoke cable dome space structure system comprises a supporting column system, a ring beam, a single-layer spoke type crossed cable net, an inner ring cable and a multi-stage cable system structure; the multi-stage cable system structure comprises a first endless cable structure, a second endless cable structure, a third endless cable structure, a fourth endless cable structure, a first supporting structure, a second supporting structure, a third supporting structure, a fourth supporting structure, a first stay cable structure, a second stay cable structure, a third stay cable structure and a fourth stay cable structure. The supporting column system is fixedly connected with the ring beam, one end of the single-layer spoke type crossed cable net is hinged to the ring beam, the other end of the single-layer spoke type crossed cable net is hinged to the inner ring cable, the multi-stage cable system structure is hinged to the ring beam, one end of a first supporting structure of the multi-stage cable system structure is connected with the inner ring cable, and the other end of the first supporting structure is connected with the first ring cable structure. The overall rigidity is large, the anti-collapse capacity is good, the length of the pressing rod is effectively reduced, buckling is avoided, and the problem that arrangement of a cable truss structure is limited is solved.
Owner:THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD +2

Method for correcting section of reflecting surface of radio telescope of large cable net supporting system

The invention relates to the field of radio telescope structure analysis, and discloses a large-scale cable net supporting system radio telescope reflecting surface section correction method, which comprises the following steps: establishing a telescope cable net reflecting surface initial calculation model; calculating internal force and external force of the mass point; performing nonlinear static force calculation to obtain an equilibrium state model; calculating a main cable node space coordinate deviation between the equilibrium state model and the initial calculation model; reversely applying the obtained coordinate deviation to the initial calculation model, and updating the equilibrium state model; repeating the steps 3-5 to obtain model information in a reference state; calculating an ideal section size of each cable unit; the optimal ideal section size is matched for the cable unit in the cable unit section library; the initial calculation model is updated, and cable net section correction is completed. According to the scheme, initial form analysis of the cable net reflecting surface is carried out by utilizing a finite mass point method, and more uniform cable force distribution is realized by selecting a proper cable net section size in a given section library.
Owner:HARBIN INST OF TECH AT WEIHAI

Umbrella-like floating platform and tensioning method thereof

The invention provides an umbrella-like floating platform and a tensioning method thereof. The umbrella-like floating platform and the tensioning method are used for solving the problem that an existing floating platform is large in weight and high in manufacturing cost. Comprising a platform ring and a pressed ring which are arranged in parallel, and a plurality of side stand column buoys are vertically connected between the platform ring and the pressed ring; a central stand column is further arranged at the central axis of the platform ring and the pressed ring, the bottom end of the central stand column extends out of the lower end face of the pressed ring, and a plurality of first inhaul cables and second inhaul cables are arranged between the pressed ring and the top end and the bottom end of the central stand column respectively. The first inhaul cables and the second inhaul cables are arranged in an annular array mode along the central axis of the central stand column. By arranging the inhaul cables, the inhaul cable tension steel structure is pressed, a tension-compression balanced prestressed cable net system is formed, under the condition that the stress performance of the whole structure is kept unchanged, the steel consumption of the platform is remarkably reduced, the purpose of the lightweight structure is achieved, and then the manufacturing cost is reduced.
Owner:CIMC JIGUANG OCEAN TECHNOLOGY (YANTAI) CO LTD +1

Convolution and self-attention mechanism fused structural feature extraction and model correction system

The invention discloses a structure feature extraction and model correction system fusing convolution and a self-attention mechanism, relates to the technical field of structure engineering information, and aims at solving the problem that the structure feature extraction and model correction of a cable net structure can be realized by introducing a convolution-self-attention fusion mechanism and a double-domain consistency constraint optimization model in the whole process of cable net structure modeling, feature extraction and parameter correction. And the precision dynamic correction from the finite element simulation data to the actual measurement response data is realized. The output of the finite element modeling subsystem is used as a multilayer objective function, after the principal component screening subsystem extracts a sensitivity principal component, the system extracts a local correlation feature by using a convolutional neural network in a feature extraction stage, and then captures a global dependency feature by a self-attention mechanism, so that the model can pay attention to the micro-scale response of a local structure and also can pay attention to the global dependency feature. And the overall dynamic mode can be identified. Compared with a traditional mode, the disturbance consistency constraint and adversarial training mechanism is introduced, so that the network can still keep stable output under input disturbance.
Owner:FUJIAN UNIV OF TECH

Aircraft cable network layout determination method, device, equipment, medium and product

The invention discloses an aircraft cable network layout determination method, device and equipment, a medium and a product. The method comprises the following steps: receiving a cable network layout editing request, and determining aircraft connector information according to an electrical schematic diagram corresponding to a first aircraft; receiving a contact editing operation, and generating an aircraft contact distribution table according to the contact editing operation and the aircraft connector information; receiving a cable editing operation, and generating a cable information table corresponding to the first aircraft according to the cable editing operation and the aircraft contact distribution table; and in response to the layout information generation request, generating cable network layout information corresponding to the first aircraft according to the aircraft contact distribution table and the cable information table, so as to produce a cable network of the first aircraft according to the cable network layout information. According to the technical scheme, the effect of determining the cable network layout information in the aircraft based on the electrical schematic diagram of the aircraft is achieved, and the efficiency of determining the cable network layout information is improved on the basis of reducing the error rate of the layout information.
Owner:SUZHOU TONGYUAN SOFT CONTROL INFORMATION TECH CO LTD

Construction method of curved-surface cylindrical cable-membrane composite structure system

The invention discloses a construction method of a curved-surface cylindrical cable-membrane composite structure system.The cable-membrane composite structure system is of a curved-surface cylinder structure with the middle concave inwards, a circle of the upper portion of the cylinder is of a steel truss structure, the upper portion of a cable net is connected with the steel truss structure, the cable net comprises a plurality of radial cables and annular cables, and the radial cables and the annular cables are arranged in a crossed mode to form grids; the construction method comprises the following steps that S1, the steel truss structure is installed, and an initial frame is formed; s2, an operation platform and a lifting tool frame are arranged, and a lifting point is set; s3, the radial cable and the lifting tool frame are connected and lifted to be separated from the ground; s4, a cable net lifting and tensioning scheme is determined, specifically, the cable net is lifted to the designed height in a staged mode, annular cables are synchronously installed, and radial cables are symmetrically tensioned in a staged and batched mode; s5, synchronously performing simulation calculation and analysis; and S6, based on the simulation calculation and analysis result, lifting and tensioning of the cable net are conducted, and finally cable net forming is completed. And S7, a membrane structure is installed, and the tension of the cable net is adjusted.
Owner:BEIJING ACAD OF BUILDING ENG +1

Multi-energy complementary ocean floating type power generation system

The invention discloses a multi-energy complementary ocean floating type power generation system which comprises a floating type wind power platform, a wave energy power generation device, a floating type photovoltaic platform array and a mooring device, and the floating type wind power platform is used for supporting and installing a wind generating set; the wave energy power generation device is arranged on the periphery of the floating type wind power platform, so that a protection water area is formed between the wave energy power generation device and the floating type wind power platform; the floating type photovoltaic platform array is arranged in a protection water area; according to the mooring device, the anchoring foundation, the underwater buoys, the main mooring cable and the branch mooring cables are used for constructing a mooring cable net, the floating type wind power platform, the wave energy power generation device and the floating type photovoltaic platform array are moored in one mooring cable net in a centralized mode, and by sharing the anchoring foundation and the main mooring cable, the number of anchor points and the total using amount of mooring materials are greatly reduced; the mooring structure is simplified, the manufacturing and mounting cost is reduced, and meanwhile the energy output efficiency of the whole system is improved.
Owner:CRRC TECH INNOVATION (BEIJING) CO LTD +1

Vertical self-balancing double-curved-surface cable net curtain wall supporting device

The utility model relates to the technical field of cable net curtain walls, in particular to a vertical self-balancing double-curved-surface cable net curtain wall supporting device which comprises multiple stand columns, wind blocking cables, reverse arch cables and balancing cables, the wind blocking cables and the reverse arch cables are arc-shaped, and the multiple stand columns are perpendicular to the wind blocking cables and arranged in the length direction of the wind blocking cables; the length direction of the reverse arch cable is parallel to the length direction of the stand column, a jacking assembly is arranged between the reverse arch cable and the stand column and used for controlling the radian of the reverse arch cable, and a tension assembly is arranged between the end of the reverse arch cable and the stand column and used for adjusting the tension of the reverse arch cable. And the balance cable is used for controlling the structural stability between the two adjacent reverse arch cables. The supporting structure has the effects that the loading force on the supporting structure is reduced, and the curvature of the cable net face tends to be consistent with the curvature of the outer vertical face of the curtain wall.
Owner:WUXI QINGDA ARCHITECTURAL DESIGN & RES INST CO LTD

Wind-resistant stabilizing system of flexible photovoltaic support

The utility model discloses a flexible photovoltaic support wind-resistant stabilizing system in the technical field of photovoltaic power generation, which comprises an assembly cable and a bearing cable, a plurality of photovoltaic assemblies are mounted at the tops of the assembly cable and the bearing cable, and a plurality of side anchor piles are connected to the two ends of the assembly cable and the bearing cable. Side beams are connected to the sides, close to the left end side anchor pile, of the assembly cable and the bearing cable, side columns are connected to the sides, close to the right end side anchor pile, of the assembly cable and the bearing cable, a triangular support is arranged between the assembly cable and the bearing cable, and an upper wind-resistant cable and a lower wind-resistant cable are arranged in the middle and at the bottom of the triangular support correspondingly. And a V-shaped support is arranged between the upper wind-resistant cable and the lower wind-resistant cable. According to the utility model, through cooperative arrangement of the assembly cables, the bearing cables, the triangular supports, the upper wind-resistant cables, the V-shaped supports and the lower wind-resistant cables, the support system forms a bidirectional cable net structure, the torsional rigidity of the flexible photovoltaic support structure is improved, and the flexible support structure can be effectively prevented from being subjected to torsional damage under the action of wind load.
Owner:POWERCHINA HUADONG ENG CORP LTD

Hoisting method and system for permanent cable net support

The invention relates to the technical field of cable-supported grid structures, and discloses a permanent cable net support hoisting method which comprises the following steps: hoisting a cable net to an initial mounting configuration; applying a pull-down force to the cable net through at least one measure cable; the inclination angles of the radial steel beams relative to the horizontal plane are changed by multiple times, and loads are applied to the radial cables in the cable net by the heat by multiple times; after the load is applied each time, the cable force of the measure cable is dynamically adjusted, so that the configuration of the radial cable is matched with a preset supporting rod or flying column connecting point, and connection is completed; and after all the connecting points are connected, the measure cables are dismantled, and final shape finding of the radial cables is completed. The invention aims to provide a construction method for mounting an upper steel structure on a flexible cable net based on load superposition and a mode of dynamically adjusting a pull-down tool cable, and solves the problem that a plurality of support radial units complete shape finding under the control of a single pull-down tool cable.
Owner:CHINA CONSTR FOURTH ENG DIV CORP LTD +2

Multi-stage combination automatic optimization method and system for satellite three-dimensional cable network path

The invention provides a multi-stage combination automatic optimization method for a satellite three-dimensional cable network path, and the method comprises the steps: judging the membership of a cable binding support, a connector and a cabin plate through reading a satellite three-dimensional satellite model, and defining the attributes of a cabin penetrating hole and a cross-plate connection point; constructing a three-layer information table of a cable network, a cable bundle and a cable branch; selecting the longest different plate / same plate branch as a main branch according to cabin plates at the head end and the tail end of the branch; decomposing stage by stage according to the distribution of main and branch cabin plates, and performing path optimization by adopting a plate path optimization algorithm based on a Floyd algorithm, an intra-region path optimization algorithm and a region path optimization algorithm; the slave branch selects the nearest access point for optimization based on the main branch path; and circularly processing all the cable bundles to complete the path planning of the whole cable network. Therefore, automatic optimization of the three-dimensional cable network path of the satellite deck is realized, the problems of low efficiency and poor quality of manual design of a general module are solved, and the method is adaptive to a whole satellite and a multi-deck satellite with a single / multi-plane deck and has universality.
Owner:CHINA ACADEMY OF SPACE TECHNOLOGY

Method for controlling installation and construction stability of high-altitude ultra-long and ultra-high steel member on flexible cable net

The invention discloses a high-altitude ultra-long and ultra-high steel member installation construction stability control method on a flexible cable net, which comprises the following steps: S1, a radial main beam is hoisted to the flexible cable net, and the lower part of the head end of the radial main beam is connected with a vertical main supporting rod; a plurality of vertical secondary supporting rods are evenly arranged on the bottom side of the radial main beam in the axis direction of the radial main beam at intervals. S2, the radial main beam is gradually lowered, and the tail end of the radial main beam is connected to the inner ring beam through a pin shaft; s3, the adjustable lateral cables connected to the two sides of the vertical main supporting rod in advance are preliminarily pre-pulled downwards, then the single steel component is gradually lowered, the vertical secondary supporting rod and the radial cables are sequentially connected through cable clamps, and the bottom end of the vertical main supporting rod and the inner side annular cable are sequentially connected through cable clamps; and S4, the adjustable lateral cable is connected, the telescopic length is adjusted, and the adjustable lateral cable is tensioned and fixed. The method can ensure that the steel member forms a stable structural system under the support of the cable net, a large amount of measure cost is reduced, and the mounting quality is improved.
Owner:CHINA CONSTR FOURTH BUREAU WUHU CONSTR INVESTMENT CO LTD +2

Active turbulent flow type sand blocking system

The invention discloses an active turbulent flow type sand blocking system. The active turbulent flow type sand blocking system comprises a first turbulent flow belt, wherein the first turbulent flow belt comprises a first supporting column, a first cable net and a first wind resistance plate; the plurality of first supporting columns are arranged side by side into a plurality of rows and are distributed at intervals; the first cable net is connected between every two adjacent first supporting columns in each row; and a plurality of first wind resistance plates are arranged on each row of first cable nets, and the plurality of first wind resistance plates on each row of first cable nets are distributed between the adjacent first supporting columns at intervals. According to the active turbulent flow type sand blocking system, the turbulent flow field is constructed and formed through point vortexes formed at all the wind blocking plates, the turbulent flow field is used for achieving active turbulent flow on wind-sand flow, macroscopic ordered kinetic energy efficient dissipation is conducted on the wind-sand flow, and the purposes of effective interception and sedimentation are achieved.
Owner:CHINA CONSTR THIRD ENG BUREAU GRP CO LTD

An electromagnetic impact protection device suitable for large-scale shaking table test

This invention relates to the field of shaking table testing technology and discloses an electromagnetic shock protection device suitable for large-scale shaking table tests. It includes multiple support columns spaced along the outer perimeter of the shaking table and a surrounding arresting cable net assembly. The support columns are equipped with pulley assemblies. The surrounding arresting cable net assembly includes steel cables and at least one set of electromagnetic arresting assemblies. The steel cables are wound around the pulley assemblies, and the ends of the steel cables are connected to the electromagnetic arresting assemblies. The electromagnetic arresting assemblies include a spool and a generator connected to the spool. The steel cables are connected to the spool, and the generator is electrically connected to a control device. The control device controls the damping force on the steel cables by adjusting the excitation current of the generator. This invention aims to solve the problems of existing mechanical or hydraulic arresting systems, which suffer from slow response and inability to adjust damping force in real time, resulting in a harsh shock protection process, high peak force, and potential secondary damage.
Owner:TIANJIN UNIV

Long-span photovoltaic flexible support

The invention belongs to the technical field of flexible photovoltaic supports, and particularly relates to a long-span photovoltaic flexible support which comprises two edge supporting pieces, at least two assembly fixing cables, an assembly bearing cable, a plurality of wind-resistant frames and a plurality of stable anchoring mechanisms. Due to the fact that the two ends of the assembly bearing cable are fixed to the two edge supporting pieces respectively, under the action of gravity, the middle of the assembly bearing cable can droop, the whole assembly bearing cable has a certain curvature, and the length of each wind-resistant frame is configured to be matched with a natural droop curve of the assembly bearing cable. Therefore, wind loads can be transmitted downwards more evenly and more efficiently through the wind-resistant frames, under the cooperation effect of the stable anchoring mechanisms and the wind-resistant frames, the bearing capacity of the whole cable net structure can be improved, and the large-span arrangement requirement is met.
Owner:SUZHOU JSOLAR INC

Roof cable net photovoltaic support system with adjustable angle

The utility model provides an angle-adjustable roof cable net photovoltaic support system, which comprises a photovoltaic panel, high transverse cables, low transverse cables, high longitudinal cables and low longitudinal cables, and is characterized in that the two ends of the high transverse cables and the two ends of the low transverse cables are connected to a parapet wall through transverse adjusting devices; the high longitudinal cables and the low longitudinal cables are connected to the parapet wall through longitudinal adjusting devices, photovoltaic panels are obliquely installed between the adjacent high transverse cables and low transverse cables, the high longitudinal cables and the low longitudinal cables are perpendicular to the high transverse cables and the low transverse cables, and cross buckles are arranged at the crossed positions of the high longitudinal cables and the high transverse cables. A cross-shaped buckle is arranged at the crossed position of the low longitudinal cable and the low transverse cable, the high longitudinal cable is located below the high transverse cable, and the low longitudinal cable is located below the low transverse cable. The solar photovoltaic support is scientific and reasonable in structural design, stable in supporting, small in influence on a house body, high in practicability, capable of making adaptive changes according to the illumination incident angle, capable of improving the sunlight receiving rate of a photovoltaic panel and high in power generation efficiency.
Owner:SHAANXI YANAN ELECTRICAL CO LTD +1

Flexible cable net supporting structure for offshore photovoltaic panel

The invention discloses a flexible cable net supporting structure for an offshore photovoltaic panel, and the structure comprises a cable net truss which comprises an upper-layer cable net unit and a lower-layer cable net unit, the upper-layer cable net unit and the lower-layer cable net unit are arranged at an interval from top to bottom, the upper-layer cable net unit and the lower-layer cable net unit are connected through a first supporting rod, and the upper-layer cable net unit is suitable for bearing a photovoltaic module; the upper-layer cable net unit comprises a plurality of upper chord cables which are arranged at intervals, and the lower-layer cable net unit comprises a plurality of lower chord cables which are arranged at intervals; the upper chord cable is of a concave structure so as to bear a downward load; the lower chord cable is of an upward convex structure and forms a reverse curvature with the upper chord cable so as to bear an upward load; and the frame truss is arranged at the peripheries of the upper-layer cable net unit and the lower-layer cable net unit and is used for fixing the upper-layer cable net unit and the lower-layer cable net unit. Through the reverse curvature design of the upper and lower double-layer cable nets and the frame trusses, the problem that a traditional single-layer cable net cannot adapt to the offshore bidirectional dynamic load is effectively solved.
Owner:HUADIAN HEAVY IND CO LTD

Cable-supported sound insulation barrier

The utility model relates to the technical field of noise control, in particular to a cable-supported sound insulation barrier. The sound insulation screen comprises side sound insulation screens arranged on the two sides of a road and a bridge and further comprises a top sound insulation screen arranged above the road and the bridge, the top sound insulation screen comprises a bearing cable net, a main frame, side frames and sound insulation plates, the main frame comprises main stand columns and main beams, and the main stand columns are arranged in the middle of the road and the bridge at intervals in the longitudinal direction of the road and the bridge. The girders are fixedly arranged at the upper parts of the main upright posts along the longitudinal direction of the road bridge; the side frame comprises side stand columns and side beams, the side stand columns are fixedly arranged on the edges of a road bridge at intervals in the longitudinal direction of the road bridge, and the side beams are fixedly arranged on the tops of the side stand columns in the longitudinal direction of the road bridge. The bearing cable net comprises a plurality of main inhaul cables, the main inhaul cables roughly extend in the transverse direction of the road bridge, the two ends of each main inhaul cable are fixed to the corresponding main beam and the corresponding edge beam respectively, the main inhaul cables are arranged at intervals in the longitudinal direction of the road bridge, and the sound insulation plates are arranged on the bearing cable net. The method can be widely applied to noise control projects in the traffic and transportation fields such as highways, railways, subways and high-speed rails.
Owner:QINGDAO CREATE ENVIRONMENT CONTROL TECH

Gas storage reservoir, energy storage device, and control method and mounting method for gas storage reservoir

A gas storage reservoir, an energy storage device, and a control method and a mounting method for the gas storage reservoir. An inner foundation structure surrounds the outer side of a ground film; an outer foundation structure surrounds the outer side of the inner foundation structure; the edge of an inner film is fixed to the inner foundation structure; an inner cable net is arranged on the outer surface of the inner film; an accommodating cavity is defined between the inner film and the ground film, and the inner film comprises a metal layer; an outer film structure covers the outside of the inner film structure; the outer film structure comprises an outer film and an outer cable net an interlayer cavity is defined between the outer film and the inner film; an air supply device is configured to inflate the interlayer cavity.
Owner:EXA ENERGY TECH (SHENZHEN) CO LTD

Anti-hanging cable arm

The invention belongs to the field of construction hoists, and provides an anti-hanging cable arm for a construction hoist, which comprises an arm body, a connecting rod device, a cable net sleeve, a force adjusting device, a clamping device and a limit switch, the arm body is of a cavity structure; the connecting rod device is hinged and fixed on the arm body through a shaft or a bolt and can rotate around a hinge point; a cable net sleeve is installed at one end of the connecting rod device, the other end of the connecting rod device is connected with the arm body through a force adjusting device, and when the connecting rod device rotates, the end of the connecting rod device acts to trigger a limiting switch installed on the arm body. The clamping device is installed in the cavity of the arm body and used for clamping a cable arranged in the arm body in a penetrating mode. The device can effectively solve the safety problems of cable snapping, structural deformation, cage outage and the like caused by interference with a building or a scaffold in the cable running process, and the running safety and the operation continuity of the construction hoist are guaranteed.
Owner:HUBEI JOINHAND CONSTR MACHINERY

Cable net structure prestress correction method and system based on multi-experiment sensitivity

The invention discloses a cable net structure prestress correction method and system based on multi-experiment sensitivity, and relates to the technical field of structural engineering and structural health monitoring. A sensitivity matrix is approximately constructed through a finite difference method, and construction of the sensitivity matrix is completed in combination with multi-working-condition displacement data; meanwhile, a parameter-aware Tikhonov regularization method is introduced to suppress the ill-conditioned error amplification problem, and self-adaptive step length optimization is realized by adopting left-one-out cross validation (LOOCV), so that the convergence efficiency of prestress correction is effectively improved. The method is not only suitable for a pre-stress identification scene of a cable net antenna, but also can be extensively applied to multiple fields such as large-span space structures, bridge engineering and civil engineering health monitoring, and provides effective technical support for parameter identification and finite element model correction requirements related to complex coupling structures in the fields; and the method has very wide application range and practical value.
Owner:DALIAN UNIV OF TECH

A power plant electrical engineering cable stay construction tool

The present application relates to the technical field of cable traction, and particularly relates to a power plant electrical engineering cable stay construction tool. The tool comprises a shell, two driving rings which are both slidingly and rotatably connected in the shell, an inner rotating ring which is rotatably connected to one of the driving rings, a cable net which is fixed to the shell, and a fastener which is fixed between the two driving rings. The two driving rings respectively drive the two sides of the fastener to move, so that the diameter of the circle in which the axis of the fastener is located gradually decreases, the cable net is subjected to a circumferential clamping force, the clamping force of the cable net on the cable is further strengthened, the stable state between the cable net and the cable is maintained, the probability of relative sliding between the cable net and the cable is reduced, and the efficiency of pulling the cable is ensured, and the abrasion of the cable skin is reduced.
Owner:CHINA ENERGY ENG GRP TIANJIN ELECTRIC POWER CONSTR CO LTD

Cable truss

A cable truss, including upper chord cable, lower chord cable, cable clamp, cable clamp support arm, cable end connecting block; the two ends of the cable clamp support arm are respectively provided with a cable clamp, the cable clamp is a cylindrical structure as a whole, which is composed of upper spiral body, middle spiral body and lower spiral body, the joint of the upper spiral body and the middle spiral body is provided with an upper chord cable through hole, and the joint of the middle spiral body and the lower spiral body is provided with a lower chord cable through hole; a plurality of telescopic locking pin shafts are arranged in the upper spiral body and the lower spiral body in the vertical direction, the middle spiral body is provided with locking pin shaft insertion holes corresponding to the locking pin shafts, and the locking pin shafts are inserted and matched with the locking pin shaft insertion holes. The application solves the design problem of the cable net node, reduces the adverse effect of the unbalanced force between the cable nets on the overall structure, increases the force rationality of the node and the safety of the whole cable net, reduces the processing and manufacturing cost and the construction difficulty, and can be applied to the "sky round place" structure of the "Dream of Red Mansions" drama fantasy garden engineering.
Owner:CHINA CONSTR FIRST BUREAU GRP NORTH CHINA CONSTR CO LTD +1

Roof photovoltaic cable net support device with windproof and damping functions

The utility model provides a roof photovoltaic cable net support device with windproof and damping functions, which comprises transverse cables, longitudinal cables, stabilizing devices and photovoltaic panels, a plurality of transverse cables are parallelly mounted between parapet walls, the transverse cables are arranged in pairs, the transverse cables and the longitudinal cables jointly form a photovoltaic cable net, the photovoltaic panels are fixedly mounted between each pair of transverse cables, and the stabilizing devices are arranged between the transverse cables and the longitudinal cables. The longitudinal cables are parallelly installed between the parapet walls at equal intervals, the longitudinal cables are perpendicular to the transverse cables, the transverse cables are located above the longitudinal cables, and stabilizing devices are arranged at the crossed positions of the transverse cables and the longitudinal cables. The photovoltaic cable net is scientific and reasonable in structural design, simple and convenient to install, capable of flexibly adjusting the height of the photovoltaic cable net, capable of effectively improving wind resistance and vibration resistance, capable of reducing damage to photovoltaic panels and capable of being used and popularized.
Owner:SHAANXI YANAN ELECTRICAL CO LTD +1

Carrier rocket cable network beam splitting data processing method, device and equipment

The invention provides a carrier rocket cable network beam splitting data processing method, device and equipment, belongs to the technical field of rocket manufacturing, and solves the problems of unreasonable layout, poor assembly compatibility and incapability of dynamically responding to system change in carrier rocket cable beam splitting design. The method comprises the following steps: acquiring rocket appearance data and cabin section layout data; analyzing and processing the rocket appearance data and the cabin section layout data to obtain spatial constraint data; determining a trunk line path according to the spatial constraint data; according to the cabin section layout data and the main line path, determining segmented current data; determining cable line diameter data according to the segmented current data; and determining rocket cable beam splitting data according to the cabin section layout data and the cable wire diameter data. According to the scheme, the layout reliability is improved, the space utilization rate is increased, and the electrical stability of the rocket is guaranteed.
Owner:HENAN TIANZHANG ROCKET CO LTD

Double fishbone light roof structure and construction method thereof

The present application relates to a kind of double fishbone butt type daylighting roof structure and its construction method, the roof structure includes: the fishbone type bottom framework that is horizontally fixed between two foundation components and is inclined in the middle horizontal two ends, is spliced into diamond grid by multiple lower ridge bones, bottom bone is connected in each diamond cell, bottom bone extends along the direction of two foundation components connecting line and is fixed between a pair of diagonal of diamond cell;Top framework is spliced by multiple upper ridge bones for glass panel fixed, which is matched with the shape of bottom framework;Support assembly, including several support seats distributed between bottom framework and top framework;Cable net, including several cables cross tied under bottom framework;Stand column assembly, including several stand columns, the lower end of stand column is connected with the column of cable that is cross set, the upper end of stand column is hinged to bottom framework;Roof panel, including several glass panels, for being installed on top framework.The present application is more prominent in the premise of guaranteeing structural strength, with visual impact effect.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

A hoisting device for construction of a building ring-beam steel net support assembly

The application discloses a hoisting equipment for construction of a building ring-shooting type steel net support assembly, which comprises a plurality of inhaul cables, a plurality of ring cables, a plurality of first node locks, a plurality of lifting lugs, a plurality of second node locks, a plurality of component force inhaul cables and a plurality of third node locks, the plurality of lifting lugs are all installed on top of the corresponding first node locks, a conical shell operation platform is arranged on top of the uppermost ring cable, the top end of the conical shell operation platform is symmetrically provided with a sling, a lifting appliance is fixedly installed on each group of slings, and a guide pipe and other structures are arranged in the hoisting process, so that the stability of the stand column in the hoisting process is maintained, the stand column can be conveniently inserted during subsequent erection of the conical shell formwork, the ring-shooting type is fully and uniformly stressed, the support performance is ensured, an extrusion frame and other components are arranged, the ring cable can be kept in a sufficient prestress during hoisting and installation, and the ring-shooting type cable net is kept in a stable working state under cooperation of the self weight.
Owner:SHANXI ERJIAN GRP CO LTD