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658results about How to "Guarantee safe and reliable" patented technology

Embedded type flash memory, storage system and method for power fail safeguard of data

The invention provides a flash memory, a system and a method for power fail safeguard of data. The embedded type system comprises an embedded type operating system, a file system, a memory and the like; the memory comprises a flash memory of which the storage space comprises a destination data area and a backup data area; and the embedded type storage system further comprises a power fail safeguard module used for executing the process of writing the data in the backup data area first, and then executing the process of writing the data in the destination data area after executing the writing process. The invention also relates to the method for power fail safeguard of data. The flash memory, the system and the method can easily and reliably realize the application of a general file systemin a severe embedded type environment and ensure the safety and reliability of the data.
Owner:RDA MICROELECTRONICS SHANGHAICO LTD

Cascade megawatt photovoltaic grid-connected inverter

The invention provides a cascade megawatt photovoltaic grid-connected inverter, wherein a topology structure of the cascade megawatt photovoltaic grid-connected inverter is composed of two levels, namely a DC / DC (direct current / direct current) isolation level and a DC / AC (direct current / alternating current) output level; the structures of three phases of circuits are the same; the output ends of a power inverter group of each single-phase of DC / DC output level are connected in a star shape; the input sides of power units of each single-phase level are provided with independent PV (photovoltaic) modules of the same structure; the DC / DC isolation level comprises high-frequency DC / AC, a high-frequency transformer and high-frequency AC / DC nodes of each single-phase for realizing isolation and boosting, and reducing the consumption of a switch tube via action of a resonant soft switch; the output level power transformer set adopts a bridge type inverter circuit; and the single-phase output level power units are connected with each other in a cascade mode. Based output cascade, the device can realize megawatt grid connection; as a high-frequency chain technology is used, the traditional low frequency transformer is omitted, and the power density is high; and compared with the existing photovoltaic grid-connected inverter structure, the device provided by the invention has the advantages of high energy conversion efficiency, excellent output energy quality, certain fault-tolerant capability and the like.
Owner:SOUTHEAST UNIV

Computer interlocking control system

The invention relates to a computer interlocking system, which comprises a ground region control center used for real-timely monitoring the train position and outputting the position information of a train; a safe computer interlocking subsystem used for receiving the train position output by the ground region control center, interlocking calculating according to the train position and output a control signal according to the calculation result; an output subsystem used for receiving the control signal output by the safe computer interlocking subsystem and controlling a field device to drive; and a communicating subsystem used for building safe communication connection among the ground region control center, the safe computer interlocking subsystem and the output subsystem. The computer interlocking system has the advantages of suitability for moving block, moving-like block and fixing block with high flexibility; the insurance of safety and reliability of system communication coming from the existence of a standard and safe communication port of the ATS system and ATP system ground ZC; and the support of the three modes of regularity, degradation and backup.
Owner:北京和利时系统集成有限公司

Escape automatic window breaking system for passenger vehicle and control method thereof

The invention discloses an escape automatic window-breaking system for a passenger vehicle and a control method thereof and belongs to the technical field of safety control of passenger vehicles. Glass embedded with electric heating wires is mounted on a vehicle window of the escape automatic window breaking system for the passenger vehicle, the electric heating wires are connected to a power supply of the passenger vehicle through a power supply main line, and an automatic control system is arranged on the power supply main line. The control method of the escape automatic window breaking system for the passenger vehicle, disclosed by the invention, comprises the following steps: respectively comparing a temperature value T in the vehicle, a smoke fog concentration value Sm and an external impact force P with preset critical values and processing through a controller according to all the values. The escape automatic window-breaking system for the passenger vehicle, disclosed by the invention, can be used for increasing the safety coefficient of the passenger vehicle and protecting the life safety of passengers to the greatest extent, and has important significance in reducing casualties and is wide in application range; and according to the control method of the escape automatic window breaking system for the passenger vehicle, disclosed by the invention, both an automatic control window breaking way and a manual switching way can be realized, and the safety and reliability of the window breaking system can be fully ensured.
Owner:SICHUAN AGRI UNIV

FPGA (Field Programmable Gate Array)-based on-orbit reconfiguration system and method for satellite on-board computer

The invention discloses an FPGA (Field Programmable Gate Array)-based on-orbit reconfiguration system for a satellite on-board computer. The FPGA-based on-orbit reconfiguration system comprises an on-board FPGA chip, a control FPGA chip and an SPI (Serial Peripheral Interface) flash memory unit, wherein the on-board FPGA chip is internally integrated with CPU cores; the control FPGA chip is used for receiving configuration files, which are uploaded by a communication module of a satellite, for on-orbit reconfiguration, unloading the configuration files in the SPI flash memory unit, and controlling the on-orbit reconfiguration of the on-board FPGA chip; the SPI flash memory unit is used for storing the configuration files required for on-orbit reconfiguration; in the process of realizing on-orbit reconfiguration by means of running a JTAG (Joint Test Action Group) configuration mode, the control FPGA chip reads the configuration files required for the JTAG configuration mode from the SPI flash memory unit, and sends the configuration data to the on-board FPGA chip; in the process of realizing on-orbit reconfiguration by means of running an SPI configuration mode, the control FPGA chip informs the on-board FPGA chip of starting the SPI configuration mode, and the on-board FPGA chip reads the configuration files required for the SPI configuration mode from the SPI flash memory unit.
Owner:SHANGHAI ENG CENT FOR MICROSATELLITES

Stepless regulation constant tension device for hydraulic winch

ActiveCN102153027AAvoid safety accidentsMaintain system oil pressureWinding mechanismsFuel tankSafety valve
The invention discloses a stepless regulation constant tension device for a hydraulic winch, consisting of a power pump set, a reversing valve, a hydraulic motor, a winch, a one-way valve, a balance valve and a motor safety valve, wherein the power pump set is connected with an oil inlet of the reversing valve; a first oil exchange port of the reversing valve is connected with an oil return port of the balance valve; an oil inlet of the balance valve is connected with a rope folding side oil port of the hydraulic motor; a rope release side oil port of the hydraulic motor is connected with a second oil reversing port of the reversing valve; an oil outlet of the reversing valve is connected with an oil tank; a control port of the balance valve is connected with an oil path between the rope release side oil port of the hydraulic motor and the reversing valve; the one-way valve is connected between the oil inlet and the oil return port of the balance valve in parallel; the motor safety valve is connected between the rope folding side oil port and the rope release side oil port of the hydraulic motor in parallel; and the winch is connected with the hydraulic motor. The device achieves the function of keeping the tension of a steel wire rope constant when the hydraulic winch is positioned under various work conditions and can be used for carrying out remote on-line adjustment on theoutput capacity of the hydraulic winch. The stepless regulation constant tension device has the advantages of simple structure, low cost, convenience for use and high safety.
Owner:WUHAN MARINE MACHINERY PLANT

Washer for conveying parts in turntable stepping mode

The invention discloses a washer for conveying parts in a turntable stepping mode. A turntable system is arranged in a workshop body and connected with a rotating and driving mechanism through a rotating shaft, all washing steps are finished on the turntable system, thereby the volume of the washer is reduced. The rotating and driving mechanism pushes a swinging arm through a stepped driving device, exact circumferential stepping is realized under the coordination of a positioning bolt mechanism and a stopping bolt mechanism, and the safety and the reliability of the washer are ensured. The whole washing process of the washer is automatically controlled by a program, and sequences of the actions are mutually locked electrically, thereby interferences among the mechanisms are avoided. The invention has high degree of automation, reliable operation, low failure rate and small occupation area.
Owner:YICHANG ENHANCE ULTRASONIC ELECTRIC

Intelligent protection system for forest disasters

InactiveCN105389936AEasy to monitorObserve carefully and comprehensivelyAlarmsWireless transmissionLandslide
The invention discloses an intelligent protection system for forest disasters, which is characterized by comprising a signal acquisition module, a wireless transmission module, a monitoring center, a GIS geographic information system, an alarm module, and a disaster identification module. The system can record a video of the whole process, can well monitor illegal mining, illegal logging and illegal hunting in forests with the aid of far-infrared signal acquisition equipment, and can monitor and alarm for torrential floods, mud-rock flow, landslide, rock falling and other disasters through identification and comparison by an image information and geographic information system. If there is an abnormal situation, the staff switches the camera from an automatic state to a manual state in time, and tracks, positions and amplifies a related target in order to observe the target more carefully and thoroughly.
Owner:XIAN TIANXUAN INTELLIGENT SYST TECH CO LTD

Mechanical property measuring device for natural gas hydrates

The invention discloses a mechanical property measuring device for natural gas hydrates. The device comprises a data collecting system, a vacuum pumping system, a natural gas pressurization air inlet system and a hydrate reaction still, wherein the hydrate reaction still comprises a reaction still base, an end cover, a force applying rod, a reaction still casing and a reaction bracket, the reaction still casing and the reaction still base are connected through a bolt and are sealed through a sealing ring, the end cover is connected with the reaction still base through a spiral stainless steel pipeline, the force applying rod penetrates in from the top part of the reaction still casing and is sealed through a sealing ring, one end of the force applying rod is propped against the end cover, the other end of the force applying rod is propped against the reaction bracket, a first inlet / outlet and a second inlet / outlet are formed in the end cover, a third inlet / outlet and a fourth inlet / outlet which penetrate through the center of a boss of the reaction still base are formed in the reaction still base, and the four inlets / outlets are connected with the vacuum pumping system and the natural gas pressurization air inlet system. The measuring device can be used for measuring the mechanical property of solids in situ under the conditions of high pressure and low temperature, the usage range of the existing device is expanded, and the measurement accuracy is improved.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Train door control method and system suitable for full-automatic drive train

The invention discloses a train door control method and system suitable for a full-automatic drive train. Faults and labor cost caused by operation of field staff can be reduced. The method comprises the steps that the opening and closing state information of a train door of the train and the opening and closing state information of a shielding door are collected through a vehicle on board controller (VOBC) system of the train with the train door to be controlled; whether the opening and closing states of the train door and the shielding door have a failure or not is judged according to the information; if the opening and closing state of the train door or the shielding door has a failure, failure information is generated and sent to a transportable intelligent agent system (TIAS); the TIAS receives the failure information and judges whether the train meets the condition of opening and closing the door in a remote mode; and if the train meets the condition of opening and closing the door in the remote mode, a control instruction of the door with the opening and closing state failure is generated according to the failure information and sent to the VOBC system, so that the VOBC system controls the opening and closing state of the door with the opening and closing state failure according to the control instruction.
Owner:TRAFFIC CONTROL TECH CO LTD

Network game virtual assets on-line management method and system

The invention discloses an on-line managing method and system for virtual asset of network game, which is characterized by the following: building on-line managing platform with register, transfer, transaction and payment to support user end; establishing an accommodator between management platform and operational businessman of network game; giving a series of standardizing definition for accommodator; exchanging data between managing platform and game database of operational businessman of network game; realizing on-line register, transfer, transaction and payment of virtual asset of network game for user end.
Owner:GOODHOPE CORP

Credible two-dimensional code system and application method thereof

The invention discloses a credible two-dimensional code system and an application method thereof. Through an embedded credible two-dimensional code system and an application method thereof, the invention solves the existing problem that a two-dimensional code is easy to counterfeit, ensures integrity, security and confidentiality of the two-dimensional code and develops a new application area of the two-dimensional code used as a data label conventionally, so that the authenticity of two-dimensional code can be checked in all stages of the circulation process, the safety and reliability of the system can be ensured and the phenomenon of counterfeit can be prevented, thereby realizing a safe and effective supervision on products, certificates and bills and the like.
Owner:SOUTH CHINA AGRI UNIV

Method and system for online payment of the virtual property trading of the network game

A method and system for online consignment of the virtual property trading of the network game, the main theory is to setup a trading platform with the function of online payment to support a great deal of dealer terminals, and set an adapter between the trading platform and the network game provider system, by defining a serious of standardization for the adapter, make it possible to perform the data exchange between the trading platform and the game database of the network game provider system, so as to realize the changing of the coincidence relation between the virtual property formed from the network game and the game account through the operation of the user terminal, to realize the really safe consignment of the virtual property of the network game, thus ensure that the virtual property trading of the network game carries out smoothly.
Owner:WANG KE

Digital asset right confirmation transaction method based on block chain technology

ActiveCN108764877AGuarantee safe and reliableRealize remote point-to-point secure interactionPayment protocolsPaymentDigital fingerprint
The invention discloses a digital asset right confirmation transaction method based on a block chain technology. The method comprises the following steps of carrying out unique identification identitycoding on each stage property and character role; carrying out real-name system registration through utilization of an account registration management module; sending out a transaction request through utilization of a transaction payment module, and generating a pair of public key and private key through adoption of an asymmetric algorithm; encrypting identity codes, digital funds, the stage properties and the character roles through utilization of a pubic key and feeding back a private key to a buyer and a seller; encrypting the identity codes, the digital funds, the stage properties and the character roles through utilization of a Hash algorithm after the identity codes, the digital funds, the stage properties and the character roles are encrypted through utilization of the pubic key,and generating a digital fingerprint; and storing the digital fingerprint to Mysql databases, forming a transaction block chain, and storing information to the Mysql database of each transaction nodein a distributed mode. The method has the advantages that the method is secure and reliable, is convenient for query and is reliable in data storage, and illegal tampering is avoided. The method has very high practical value and popularization value in the technical field of digital asset right confirmation transaction.
Owner:密钥科技(深圳)有限公司

5G and WiFi-based safe and intelligent image transmission system and method for electric power internet of things

The invention discloses a 5G and WiFi-based safe and intelligent image transmission system and method for an electric power internet of things. The system comprises a video service terminal used for providing an original video data stream; an edge calculation module used for WiFi access authentication and video image processing of the video service terminal and establishing a data bidirectional encryption tunnel with a security isolation device; a 5G base station and a core network which are responsible for establishment and maintenance of a 5G wireless channel of the edge computing module anda data bearing function; a security isolation platform used for isolating and filtering data and establishing an encryption tunnel; an image transmission data center used for monitoring all video service terminals; and an Internet of Things management platform used for completing network topology generation and remote configuration of the edge computing module and the video terminal. According tothe invention, the safety and reliability of the system are guaranteed through access safety authentication of the video terminal and data encryption of the 5G channel, the management modes of various terminals are unified through the Internet of Things management platform, and the operation efficiency of the system can be effectively improved.
Owner:STATE GRID ELECTRIC POWER RES INST +4

Multi-rotor drone autonomous landing method based on monocular vision and fuzzy control

InactiveCN109885084AHigh accuracy of pose detectionLarge detection distance rangePosition/course control in three dimensionsAdaptive controlMathematical modelSequence ID
The invention discloses a multi-rotor drone autonomous landing method based on monocular vision and fuzzy control. A landing gear printed with a two-dimensional code identifier is deployed in a targetlanding area of the drone, the drone returns to the vicinity of the target area by means of GPS navigation and searches and detects the identifier based on the monocular visual information to obtainan identifier relative spatial pose and a two-dimensional code identifier sequence ID value. Based on the fuzzy control method and visual image feedback information, autonomous landing planning and control is carried out for the drone. In order to ensure the safety in the narrow takeoff and landing space, the inverted cone safety area is designed as the space position constraint of the drone landing. The drone is smoothly and safely landed on the landing gear where the target identifier is located in a smooth and efficient manner. The method overcomes the defect that the landing accuracy is insufficient due to the GPS positioning alone, has low cost, overcomes the problem of overshoot and relying on the accurate mathematical model common in PID control by fuzzy control, is safe and reliable in flight area and convenient in application, and has important engineering value.
Owner:NANKAI UNIV

Resource collection task management method, resource collection task management device, storage medium and resource collection task management system

The embodiment of the invention discloses a resource collection task management method, a resource collection task management device, a storage medium and a resource collection task management system,and belongs to the technical field of the internet. The method is applied to a blockchain network; the blockchain network comprises multiple application servers as data nodes; and each data node is configured with the same blockchain and pre-set database. The method comprises the steps of: when a task query request of a first terminal is received, querying task data of a resource collection taskfrom the blockchain, querying schedule data from the pre-set database, and sending the schedule data to the first terminal; obtaining resource transfer data of the first terminal; and generating a second block used for recording the resource transfer data, and adding a second block into the blockchain, so that an updated blockchain is obtained. According to the embodiment of the invention, by utilization of the characteristic that the data of the blockchain is tamper-resistant, loss or tampering of the resource transfer data is avoided; the security and the reliability of the resource transferdata are ensured; and an event that a malicious user tampers or denies transfer resources can be avoided.
Owner:TENCENT TECH (SHENZHEN) CO LTD +1

Integral lifting template of main pylon of single-pylon cable-stayed bridge without dorsal cables and lifting construction method thereof

The invention discloses an integral lifting template of a main pylon of a single-pylon cable-stayed bridge without dorsal cables and a lifting construction method thereof. The method comprises the following steps of: (1) preparation before construction; (2) lower bridge structure construction; (3) upper bridge structure construction comprising the following construction processes of: lower pylon concrete pouring construction, lower beam construction, middle pylon segmental pouring construction, alternate segmental pouring construction of an upper pylon and a middle suspension cable beam segment and stayed-cable mounting, wherein an integral lifting template is used for segmental construction on both the middle pylon and the upper pylon; and (4) bridge surface system construction. The integral lifting template has reasonable structural design, convenient processing, manufacture, mounting and arrangement, low investment cost, simple construction method and steps and high construction speed and can quickly and safely complete the construction task of the main pylon of the cable-stayed bridge by utilizing simple construction tools and investing less labor, and various technical indexes of the main pylon of the constructed and molded cable-stayed bridge meet the requirements of the design and a construction specification.
Owner:CHINA RAILWAY 20 BUREAU GRP +3

Computer language transformation system and transformation method from C language to MSVL (Modeling, Simulation and Verification Language)

ActiveCN103150200AImplement model checkingGuarantee safe and reliableProgram controlMemory systemsLexical analysisLexical rule
The invention relates to a computer language transformation system. The computer language transformation system is used for transforming C language program into MSVL (Modeling, Simulation and Verification Language) program, and comprises a lexical analysis module, a syntax analysis module and a transformation processing module, wherein the lexical analysis module is used for transforming character sequences into word sequences; the character sequences comprise definitions of key words, identification characters, constants, operators, header files and comment lines in C language; the syntax analysis module is used for identifying specific sentences in C language based on related lexical rules of C language specified in yacc (Yet Another Compiler Compiler); and the transformation processing module is used for transforming C language into MSVL language according to a language transformation rule between C language and MSVL language.
Owner:XIDIAN UNIV

Safe food processor

The invention provides a safe food processor comprising a motor base, a cup body, and a cup lid. The cup body is arranged on the motor base, and the cup lid is bucked on the cup body. The food processor further comprises a master control circuit and a load. The load comprises a motor and heating devices, the motor is arranged in the motor base, the heating devices are arranged on the cup body, a circuit board bearing the master control circuit is arranged in the motor base, a coupler for communicating the motor base and electric parts in the cup body is arranged on the cup body and the motor base, a switch is arranged on the cup body, opening and closing of the cup lid and the cup body control on-off of the switch which is arranged between the load and a mains supply, and the switch is communicated with the load and the mains supply through the coupler. According to the arrangement that the switch is arranged to allow the on-off of the same to be controlled by the cup lid, during operation, the switch is off when the cup lid is separated from the cup body, in other words, a load circuit is disconnected, and the load no longer operates in the absence of the cup lid, so that safety of users in using of the food processor is guaranteed, and quality of the whole food processor is improved as well.
Owner:JOYOUNG CO LTD

Service access method, portal switching server and service access system

The embodiment of the invention relates to a service access method, which can select a target service gateway to be connected according to the current load condition of each service gateway of a user in the regional service cluster, so as to perform subsequent service flow. The embodiment of the invention also provides a corresponding portal switching server and a corresponding service access system. With the service access method, the portal switching server and the service access system of embodiment of the invention, the service access speed of the user can be improved considerably, the service operation of the user is convenient, the system operation efficiency is improved and the safety and reliability of the system are ensured.
Owner:深圳市领航创展实业有限责任公司

Deep water pipeline multi-circuit bridging system and testing and installing method thereof

The invention discloses a deep water pipeline multi-circuit bridging system and a testing and installing method thereof. The deep water pipeline multi-circuit bridging system comprises a seabed manifold, an underwater electric distribution assembly, a first underwater Christmas tree, a second underwater Christmas tree, a first underwater umbilical cable terminal and a second underwater umbilical cable terminal, wherein the seabed manifold, the underwater electric distribution assembly, the first underwater Christmas tree, the second underwater Christmas tree, the first underwater umbilical cable terminal and the second underwater umbilical cable terminal are connected through a hydraulic bridging wire and a water and gas injection pipeline. The hydraulic bridging wire comprises male connector terminals and female connector terminals matched with the male connector terminals. The testing and installing method of the deep water pipeline multi-circuit bridging system includes the following steps that a leakage test and a flushing test are performed on the male connector terminals and the female connector terminals, after the tests are finished, the water and gas injection pipeline and the hydraulic bridging wire are moved underwater, and the water and gas injection pipeline and the hydraulic bridging wire are installed between underwater equipment respectively through the ROV operation. According to the deep water pipeline multi-circuit bridging system and the testing and installing method thereof, fast connecting and disconnecting between the underwater equipment can be achieved, it is ensured that all key parts and moving portions can be recycled, and the stopping and connecting states of an ROV can be safe and reliable.
Owner:CHONGQING QIANWEI SCI & TECH GRP

Isolation double-stage chain type current transformer applied to energy storage of high-capacity battery

The invention provides an isolation double-stage chain type current transformer applied to energy storage of a high-capacity battery. A bidirectional isolation full-bridge current transformer with a high-frequency isolation current transformer is additionally arranged between each H bridge module of a conventional chain type current transformer and the battery, so that a battery side is insulated from a high-voltage power grid. The bidirectional isolation full-bridge current transformer is controlled to keep voltage of a middle direct-current side; meanwhile, secondary pulse power on the battery side of the chain type current transformer can be buffered; a chain type energy-storing current transformer can be used as an interface of battery energy storage and the power grid, so that high-voltage direct-current grid connection can be realized, the power dispatching of the power grid is accomplished, and the volumes of harmonic and filter elements of an energy storage system, which are accessed into the power grid, can also be reduced. According to the isolation double-stage chain type current transformer disclosed by the invention, the requirements on an insulation grade of a battery module can be reduced, the secondary pulse power on the battery side is reduced, and the safety and the reliability of the battery are guaranteed; and meanwhile, different types of batteries with different voltage grades can be accessed so that the isolation double-stage chain type current transformer can be easily produced in a large scale, and is suitable for a large-capacity, high-voltage and grid-connected battery energy storing system.
Owner:SHANGHAI JIAO TONG UNIV

Integrated device for fumigating, freezing, storing and transporting gametes based on liquid nitrogen

An integrated device for fumigating, freezing, storing and transporting gametes based on ultra-low temperature liquid nitrogen comprises a movable trolley, a primary liquid nitrogen storage tank, a storage tank thermal insulation cover, a liquid nitrogen recovery tank, a low-temperature valve, a gamete carrier frame and a temperature feedback device. The primary liquid nitrogen storage tank adopts polyurethane insulation materials or vacuum multilayer insulation to keep warm, is provided with a polyurethane insulation cover, and can achieve that the outer surface of a storage tank body does not frost and dew. The primary liquid nitrogen storage tank is design in a form that a cushion chamber and an operating chamber are separated to form a communicating vessel, stability of a liquid level and the temperature of the operating chamber is guaranteed, and serious fluctuation caused in a liquid adding process is avoided. Temperature measuring and displaying functions are provided, and temperature information is used for adjusting the height of the liquid level simultaneously. The integrated device can achieve single-step fumigation and safety transportation of the gametes.
Owner:SHANGHAI JIAO TONG UNIV

Mobile Internet security service system

The invention relates to a mobile Internet security service system. The system comprises a safety operation management device, a safety application service device, a virtual safety communication device and a safety electronic market server. The safety operation management device comprises a key management platform, an equipment management and control platform and an Anvi Smart Defender platform. The safety application service device comprises a short message encryption server, a voice encryption server, an E-mail encryption server and a mobile office server and provides the short message encryption, voice encryption, E-mail encryption and mobile office service. The virtual safety communication device comprises a safety gateway and a strategy management server and provides a virtual safety channel and the safety protection function. The safety electronic market server stores a safety application program set checked and issued by the safety operation management device so that a user terminal can download application software. The system can provide the functions of mobile equipment management, safety secrete communication and malicious code searching and killing, the anti-secrete-leakage, anti-leakage and secrete communication service is provided for a user, safety and reliability of communication are guaranteed, and the supervision control and management capacity of a mobile Internet is improved.
Owner:INST OF INFORMATION ENG CHINESE ACAD OF SCI

Concrete-filled rectangular steel tube column-box girder full-bolt connection node and construction method

The invention belongs to the technical field of building structure engineering, and relates to a concrete-filled rectangular steel tube column-box girder full-bolt connection node. The concrete-filled rectangular steel tube column-box girder full-bolt connection node comprises a concrete-filled rectangular steel tube column, a box girder, an upper run-through clapboard, a lower run-through clapboard, a lower cover plate, a plurality of high-strength bolts, a plurality of connection plates and two shear plates. The upper run-through clapboard and the lower run-through clapboard penetrate through a concrete-filled rectangular steel tube column wall and are welded with the surrounding of the steel tube column wall of the concrete-filled rectangular steel tube column; the two webs of the box girder are welded together with the groove of the concrete-filled rectangular steel tube column via one shear plate respectively; the upper flange of the box girder is connected with the upper run-through clapboard by the high-strength bolts via the connection plates arranged in the box girder; the two webs of the box girder and the two shear plates are connected by the high-strength bolts via the connection plates arranged in the box girder respectively; and one end of the lower cover plate is connected with the lower flange of the box girder via the connection plate, and the other end of the lower cover plate is connected with the lower flange of the lower run-through clapboard via the connection plate. The invention provides a construction method for the node aforementioned simultaneously. The node and the construction method disclosed by the invention have the advantages of being convenient, fast, and easy to realize.
Owner:TIANJIN UNIV
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