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236 results about "Structure system" patented technology

Deep underground structure pseudo-dynamic test method and device

The invention belongs to the technical field of underground structure tests, and provides a deep underground structure pseudo-dynamic test method and device.The method comprises the steps that a numerical substructure and a test substructure are constructed, and an interaction boundary is arranged between the numerical substructure and the test substructure; and compensating the boundary prediction data according to the inertia force compensation coefficient based on the numerical sub-structure in each loading process, and loading the compensated prediction data to the test sub-structure, so that the test sub-structure outputs prediction response data and updates the rigidity of the numerical sub-structure, and determining a target balance force according to the prediction response data based on the numerical simulation substructure, driving a next loading process by using the target balance force, and obtaining a dynamic response rule of the soil-structure system when respective boundaries of the numerical simulation substructure and the test substructure meet displacement coordination and force balance. According to the method, the initial stress state of the deep underground structure can be accurately simulated, and the accuracy of obtaining the mechanical response rule of the underground structure is improved.
Owner:HUNAN UNIV

A robot and method for drilling and installing gypsum board ceilings

This invention discloses a robot and method for drilling and installing gypsum board ceilings, comprising: a movable platform system; a lifting structure system installed on the movable platform system to raise the top working platform to a corresponding height for construction operations; a drilling turntable system installed on the working platform, comprising a turntable, a motor turntable for driving the turntable to rotate, and dust removal, drilling, and repair spraying parts evenly installed around the turntable, for realizing the functions of drilling, dust removal, and repair spraying of gypsum board ceilings; a keel delivery system for delivering main and secondary keels and gripping gypsum board; a gypsum board lifting system for lifting gypsum board; and a gypsum board cutting system for cutting gypsum board. This invention integrates gypsum board ceiling drilling and installation, automatically completing commands such as drilling and installation of gypsum board ceilings, further improving construction efficiency and quality.
Owner:WUHAN CONSTRUCTION ENGINEERING GROUP CO LTD +1

Cable-stayed truss side bottom water pressure balance opposite-tie-bar-free easy-to-clean water tank

The utility model discloses a cable-stayed truss side bottom water pressure balanced opposite-tie-bar-free easy-to-clean water tank, and relates to the technical field of water tanks, the cable-stayed truss side bottom water pressure balanced opposite-tie-bar-free easy-to-clean water tank comprises a bottom plate, a top plate module and side plate modules, and a plurality of bottom side pressure self-balancing truss combined components are evenly distributed on the inner side of each side plate module; the bottom side pressure self-balancing truss combined member comprises a first bottom side pressure self-balancing truss combined member and a second bottom side pressure self-balancing truss combined member. According to the bottom side pressure self-balancing truss combined component, factory assembling and welding are adopted in advance, standard and unified welding and splicing modules are formed, so that a welding component is combined, the influence caused by external factors and welding operation is reduced to a great extent, the bending resistance and the tension resistance of the bottom side pressure self-balancing truss combined component are utilized, and the welding efficiency is improved. The bottom side pressure self-balancing truss combined component can safely and reliably transfer water pressure borne by the side plates to the upper top plate and the lower bottom plate to form a stable water tank structure system, so that opposite-pulling through ribs on the two sides are omitted, the internal moving space is large, and follow-up water tank welding, manual cleaning and construction maintenance are greatly facilitated.
Owner:芜湖君梦智能农机装备有限公司

High-efficiency and high-precision prediction method for minimum failure probability of aviation structure system based on exponential penalty learning mechanism

The invention provides an efficient and high-precision prediction method for the minimum failure probability of an aviation structure system based on an exponential penalty learning mechanism, and relates to the technical field of structural reliability analysis. Respectively generating an initial sample and a candidate sample according to the probability density function of the random variable of the performance function to be analyzed; real performance function responses corresponding to the initial samples are calculated to form an initial training sample set, and an initial Kriging agent model is constructed; selecting an optimal sample point from the candidate sample set through the proposed EPAL function; merging the optimal sample and the real response thereof into the initial training sample set, and iteratively updating the Kriging model until an error-based stopping criterion is met; judging whether the failure probability variation coefficient meets the requirement or not; and finally, calculating the failure probability of the structure based on a trained Kriging model and a Monte Carlo method.
Owner:NORTHEASTERN UNIV CHINA +1

Structure vulnerability analysis method and system based on earthquake magnitude, distance and site conditions, storage medium and computer program product

The invention provides a structure vulnerability analysis method and system based on earthquake magnitude, distance and site conditions, a storage medium and a computer program product. The method comprises the following steps: adopting a preset sampling algorithm to obtain preset earthquake magnitude, distance and site conditions, and acceleration time history samples corresponding to the preset earthquake magnitude, distance and site conditions; based on the acceleration time-history sample, performing nonlinear dynamic time-history analysis on a to-be-evaluated structure by using a finite element analysis method to obtain nonlinear structure seismic response corresponding to the to-be-evaluated structure and the acceleration time-history sample; establishing a change relationship between the statistical parameters of the seismic response of the nonlinear structure and the preset magnitude, distance and site conditions by using a regression fitting method; and constructing a vulnerability curved surface of a to-be-evaluated structure based on the preset earthquake magnitude, distance and site conditions based on the statistical parameters of the seismic response of the nonlinear structure and the change relationship between the preset earthquake magnitude, distance and site conditions. According to the embodiment of the invention, the four elements of a seismic source, a propagation path, a site and a structure can be completely coupled, and the method can be suitable for earthquake disaster risk analysis and rapid evaluation of post-earthquake disasters under various medium-short period structure systems.
Owner:INST OF GEOPHYSICS CHINA EARTHQUAKE ADMINISTRATION

Open cut tunnel bite pile support without counter-pulling steel formwork side wall and construction method

This invention provides a method for constructing a sidewall without tie rods using interlocking pile support in open-cut tunnels. The method includes: setting foundation pre-embedded bolts; pouring foundation concrete; binding sidewall reinforcement; installing sidewall steel panels and supporting trusses; installing and debugging the sidewall formwork support system; installing and testing the anti-buoyancy system; installing and debugging a multi-target distance sensing steel formwork deformation monitoring system; pouring sidewall concrete; and treating construction joint waterproofing. This invention solves the problem of limited construction space for formwork trolleys in local tunnel construction sections by optimizing the formwork structure system. Compared to traditional large-volume steel formwork installation, it offers lower material costs, more flexible installation and adjustment, and superior anti-buoyancy stability, significantly improving the overall construction progress. Simultaneously, the operational efficiency of the construction joint waterproofing and formwork deformation monitoring system is also significantly improved. This construction technology demonstrates multiple technical advantages in practical applications, including high quality, high efficiency, and high returns, with outstanding application results.
Owner:ZHEJIANG ZHENGFANG TRAFFIC CONSTR CO LTD

A subway existing line building waterproof system lap joint construction method

This invention discloses a method for overlapping construction of waterproofing systems in existing subway lines. It relates to the field of underground engineering waterproofing construction technology and includes: Step 1, current status investigation and deformation assessment; Step 2, overlapping structure system design; Step 3, key material selection and process matching; Step 4, refined overlapping construction process; and Step 5, full inspection after each process. This invention's method for overlapping construction of waterproofing systems in existing subway lines, through Step 1, involves structural deformation monitoring and analysis and diagnosis of the existing waterproofing layer; Step 2, involves deformation adaptation structure design and differential deformation compensation design; Step 3, involves material selection and process innovation; Step 4, involves base treatment, interface treatment, expansion joint and node construction, and reinforcement layer construction; and Step 5, involves process inspection. This method, tailored to the characteristics of existing subway lines, enables the effective combination of different waterproofing materials, adapts to continuous deformation, and ensures long-term reliability.
Owner:CHINA RAILWAY 16TH BUREAU GRP CO LTD +2

Wind power tower cylinder column section flange connection node and wind power tower cylinder vibration reduction structure system

The invention discloses a tower column section flange connection node and a wind power tower damping structure system, and belongs to the field of wind power, the flange connection node comprises a wind power tower, a first stiffening rib, a second stiffening rib, an inner friction plate, an outer friction plate and a pre-tightening force control device, the wind power tower is in a through shape, the inner side of the first stiffening rib is fixedly connected with an upper column section of the wind power tower, and the outer side of the second stiffening rib is fixedly connected with a lower column section of the wind power tower; the inner side of the second stiffening rib is fixedly connected with the lower column section of the wind power tower drum, the inner friction plate and the outer friction plate are attached to the inner side and the outer side of the first stiffening rib and the inner side and the outer side of the second stiffening rib and are connected through a pre-tightening force control device for providing pre-tightening force, and the inner friction plate, the outer friction plate and the inner side and the outer side of the first stiffening rib and the inner side and the outer side of the second stiffening rib jointly form a friction pair. The device has good seismic mitigation and isolation performance, by means of the characteristic of friction connection and the swing mechanism, the column sections of the wind power tower are connected through the flange joints, and the dual anti-seismic mechanism of friction energy dissipation and vibration reduction and swing seismic isolation is achieved.
Owner:CHINA TOWER CO LTD WENCHANG BRANCH

Curtain-wall-like system used in window-wall structure system

The utility model relates to the technical field of building external envelope systems, and discloses a curtain-wall-like system used in a window wall structure system, which comprises a plurality of glass curtain plates, each glass curtain plate is clamped and fixed by a vertical column and a transverse section bar, the transverse section bar comprises a cross beam and a pressing plate, the cross beam comprises a window wall fixing end and an extending end, and the window wall fixing end is connected with the pressing plate. The end portion of the extending end is provided with a protruding connecting boss, in the length direction of the cross beam, one side of the connecting boss is provided with an L-shaped first fixing groove, the other side of the connecting boss is provided with an L-shaped second fixing groove, the pressing plate is connected to the top of the connecting boss in a pressing mode so as to clamp and fix the glass curtain plate, and the first fixing groove and the second fixing groove are arranged in a staggered mode. The structure of the cross beam is changed, a window fixing piece fixing mode can be adopted for fixing during fixing, a glass-like curtain wall is formed, and the usable place of the glass-like curtain wall is enlarged; the two glass curtain plates fixed in the first fixing groove and the second fixing groove respectively are fixed in a staggered mode, a good curtain wall-like facade effect can be generated, and construction is simple.
Owner:GUANGZHOU D LAB ARCHITECTURE SYST CO LTD

Deep underground structure pseudo-dynamic test method and device

The application belongs to the technical field of underground structure test, and provides a deep underground structure pseudo-dynamic test method and device, which comprises the following steps: constructing a numerical substructure and a test substructure, and setting an interaction boundary between the numerical substructure and the test substructure; in each loading process, compensating boundary prediction data according to an inertia force compensation coefficient based on the numerical substructure, loading the compensated prediction data to the test substructure, so that the test substructure outputs prediction response data and updates the stiffness of the numerical substructure, determining a target balance force based on the numerical simulation substructure according to the prediction response data, and driving the next loading process with the target balance force, when the respective boundaries of the numerical substructure and the test substructure satisfy displacement coordination and force balance, obtaining the dynamic response law of the soil-structure system. The method can accurately simulate the initial stress state of the deep underground structure, and improves the accuracy of obtaining the mechanical response law of the underground structure.
Owner:HUNAN UNIV

Intelligent adjusting structure system of pressure reducing valve

The embodiment of the utility model provides an intelligent adjusting structure system for a pressure reducing valve, and relates to the technical field of fluid conveying, the intelligent adjusting structure system comprises an adjusting structure and an electrical control system, the adjusting structure comprises a pressure reducing valve body, a pressure gauge is installed on one side of the pressure reducing valve body, and a fixing support is fixedly installed on the top face of the pressure reducing valve body; a motor is installed on the top face of the fixing support and connected with the pressure reducing valve body through a coupler. Through transformation of a traditional mechanical pressure reducing valve and application of an intelligent control technology, the problem that the pressure reducing valve cannot be intelligently adjusted is solved; the system mainly comprises a pressure reducing valve, a motor, a pressure gauge, a programmable controller, a wireless transmission terminal, a relay, an electrical control basic element and the like, has the advantages of convenience in transformation, low cost, high automation degree and the like, and can be fully applied to the pressure reducing valve of fluid in the fields of water conservancy, agriculture, municipal administration, environmental protection, chemical industry, fuel gas and the like to realize intelligent control and adjustment.
Owner:NANTONG COLLEGE OF SCIENCE & TECHNOLOGY

Vibration reduction periodic structure for guiding directional transmission of vibration energy and design method

The invention discloses a vibration reduction periodic structure for guiding directional transmission of vibration energy and a design method, and the vibration reduction periodic structure is formed by combining two basic unit cells with symmetrical structures to form the vibration reduction periodic structure in array arrangement; two basic unit cells are arranged on the two sides of a transmission path used for guiding directional transmission of vibration energy in the vibration reduction periodic structure respectively. Each basic unit cell is formed by original unit cells through rotation transformation; the original unit cell is of a hollow hexagonal embedded fan blade structure and comprises a hollow regular hexagonal frame and a plurality of fan blades evenly distributed on the inner side of the hollow regular hexagonal frame. The two basic unit cells in the vibration reduction periodic structure are obtained by rotating the fan blades in the original unit cells by the same angle in the forward direction and the reverse direction respectively. The problems that the implementation difficulty is increased and the vibration reduction effect is not ideal under the trend that a vibration structure system develops towards the direction of complexity, large scale and function diversification in an existing mode for reducing or avoiding harmful vibration are solved.
Owner:AVIC XIAN AIRCRAFT IND GRP CO LTD

Sintered multi-wall porous brick

The utility model discloses a sintered multi-wall porous brick which comprises a brick body and brick holes, and a plurality of brick holes with rectangular sections are uniformly formed in the brick body; reinforcing mechanisms are arranged in the brick holes, butt joint grooves are formed in one sides of the brick holes, clamping blocks are fixed to the other sides of the brick holes, and locking blocks are arranged on one sides of the interiors of the butt joint grooves. According to the utility model, the transverse reinforcing ribs and the longitudinal reinforcing ribs have better strength and rigidity, and a plurality of groups of transverse reinforcing ribs and longitudinal reinforcing ribs are longitudinally and transversely distributed in the brick holes in a staggered manner to form a net-state structure, so that the compression resistance and the bending resistance of the brick body can be effectively improved; moreover, the transverse reinforcing ribs and the longitudinal reinforcing ribs can effectively disperse and transfer loads, the brick body is prevented from cracking, deforming or being damaged when being stressed, and the transverse reinforcing ribs and the longitudinal reinforcing ribs are longitudinally and transversely distributed to form an effective anti-seismic structure system, so that the anti-seismic property of the brick body is improved.
Owner:PUJIANG COUNTY TIMES NEW BUILDING MATERIALS CO LTD

A flexible multi-body dynamics method validated experimental device

ActiveCN117949322Baccurate captureComprehensive and complex featuresKineticsAccelerometer
The application discloses a flexible multi-body dynamics method verification experimental device, which is used in the field of flexible multi-body dynamics experiments. The system comprises a structure system, a driving system, a measuring system and a connecting system. The structure system comprises a flexible test piece, an auxiliary beam and a counterweight piece. The driving system comprises a servo motor and a feedback control component thereof. The measuring system comprises an accelerometer, an angular displacement sensor, an eddy current sensor and a high-speed camera. The connecting system comprises equivalent torsional spring pieces and design modules for fixing two flexible beam test pieces together, and the system fundamental frequency of the flexible beam is adjusted by changing the torsional spring stiffness. The application provides a device for multi-section flexible beam dynamics experiments, which can accurately measure the displacement response and acceleration response of the test piece, is consistent with the modeling analysis results, and provides an important tool for related research and development.
Owner:BEIHANG UNIV

PLC control-based tower drum vibration active suppression method and system

The embodiment of the application relates to the technical field of tower vibration suppression, and provides a tower vibration active suppression method and system based on PLC control, real-time acquisition of tower acceleration signals, extraction of window vibration energy and dominant frequency characteristics, construction of a composite evaluation system containing performance degradation and model mismatch dimensions, utilization of index normalization and nonlinear weighted fusion technology, intelligent quantification of urgency of re-identification, triggering of a lightweight online identification and control parameter recalculation process only when system control performance significantly decreases and it is confirmed that the decrease is caused by model parameter drift, otherwise maintaining a low-power consumption monitoring mode, which effectively solves the performance attenuation problem caused by the fact that a traditional fixed parameter controller cannot adapt to the time-varying of tower structure characteristics, avoids excessive occupation of PLC computing resources by a persistent complex algorithm, realizes efficient and robust control of a time-varying structure system on a limited computing power platform, and ensures vibration reduction effect in the whole life cycle of a fan.
Owner:HUANENG RENEWABLES CORP LTD HEBEI BRANCH +2

Double-ring shock absorber based on variable rigidity, shock absorption platform system and cantilever beam structure system

The utility model discloses a double-ring damper based on variable rigidity, a damping platform system and a cantilever beam structure system, and relates to the field of vibration control and structural dynamics. In order to overcome the defect that in the prior art, effective and continuous rigidity adjustment and vibration suppression cannot be achieved on the premise that external energy and a control system are not needed, according to the technical scheme, an upper annular structure and a lower annular structure are included, and the upper annular structure and the lower annular structure are oppositely arranged and rotationally connected through a connecting component; each semi-elliptical sheet body comprises two cross beams arranged in parallel and two semi-elliptical sheet bodies symmetrically arranged at the two ends of the cross beams; the connecting component is used for realizing rotation of the upper annular structure in a preset angle range relative to the lower annular structure; and the contact rigidity between the upper annular structure and the lower annular structure is changed along with the change of the relative rotation angle. The self-adaptive vibration damper is suitable for working scenes such as a precision platform, a cantilever structure or an electronic equipment mounting base and the like which need to realize passive and self-adaptive vibration damping in a 40-100Hz medium-high frequency vibration environment.
Owner:SUZHOU DINGLING TECH CO LTD

High-toughness regenerated plastic dropper material based on waste mulching film and preparation method of high-toughness regenerated plastic dropper material

PendingCN122011654APlastic recyclingPlastic mulchRenewable Polyethylene
The invention discloses a high-toughness regenerated plastic dropper material based on a waste mulching film and a preparation method of the high-toughness regenerated plastic dropper material, belongs to the technical field of material regeneration, and is used for solving the technical problem that the tensile property and the impact resistance of a regenerated plastic dropper material in the prior art need to be further improved. According to the invention, a silica ion reinforcing component, boric acid ester modified regenerated polyethylene and hydroxyl carbamate flexible polyurethane are synergistically compounded, and a multi-scale structure system in which an inorganic-organic hybrid constraint structure, a dynamic reversible connection unit and a flexible dissipation channel are combined is constructed in the material; the material forms a stable interface coupling and continuous stress transfer path in the melting processing and service stress process, so that the material gives consideration to structural bearing, morphology stability and energy distribution capability, and is suitable for plastic dropper products with comprehensive requirements on mechanical properties and heat resistance.
Owner:ANHUI GUANHONG PLASTIC IND

Old-aged house integral construction system

The embodiment of the utility model relates to the technical field of indoor decoration, and provides an old-fit housing integral construction system, which comprises an environment monitoring sensor group, a controller, environment adjusting equipment and a wiring structure which are arranged in a housing main body, the controller is in wireless connection with the environment monitoring sensor group and the environment adjusting device. The environment monitoring sensor group is used for collecting environment signals in the housing main body in real time; the controller is used for outputting a control signal for controlling the environment adjusting equipment according to the environment signal; and at least one part of power supply cables of the environment monitoring sensor group, the controller and the environment adjusting equipment are accommodated in the wiring structure. By means of the embodiment of the specification, the problems that grooving and wiring construction in a house suitable for the old is complex, wall and ground structures are prone to being damaged, and therefore comfortable living of the old is affected can be solved.
Owner:BEIJING JINCHAO DECORATION DESIGN CO LTD +2

A smoking acid pipeline heat preservation connecting structure

The application provides a smoking acid pipeline heat preservation connecting structure, and belongs to the technical field of pipeline heat preservation connection. The smoking acid pipeline heat preservation connecting structure comprises heat preservation units and connecting units which are connected alternately. The heat preservation unit is composed of two opposite prefabricated modules which are wrapped outside the conveying pipeline. The heat preservation unit is spliced by two opposite prefabricated modules, and is connected by the connecting unit to form an integrated sealing heat preservation system with hot water circulation heat tracing. The opposite prefabricated modules are automatically pulled tight in the opposite surface by wedge-shaped cooperation of the limiting head and the limiting seat in the axial reverse movement mode. During the locking process of the locking ring of the butt joint end and the annular butt joint, the close opposite of the prefabricated module and the locking are automatically completed, and the sealing connection of the heat preservation unit and the connecting unit is also completed. The overall structure system is not only simple in installation process and convenient to install, but also effectively improves the heat preservation effect and the stability of long-term operation of the system, and is convenient for later maintenance.
Owner:NEI MENG GU JIN HUI XI KUANG YOU XIAN GONG SI

Supportless integral-assembly-type cut-and-cover vehicular tunnel structure system and construction method

Disclosed in the present invention are a supportless integral-assembly-type cut-and-cover vehicular tunnel structure system and a construction method. A bottom slab of the lowermost tunnel is of a cast-in-place bottom slab structure. Side walls and a top slab of each tunnel are each of a composite slab structure, and the composite slab structure comprises a prefabricated slab facing the inside of a tunnel and a cast-in-place layer facing the outside of the tunnel. The cast-in-place layers of the side walls and the top slab of the uppermost tunnel are integrally cast, while the cast-in-place layers of the remaining side walls and those of the corresponding top slabs are independently cast. During construction, corner connecting members are provided between the bottom slab and the side walls, between the bottom slab and a middle partition wall, between the top slab and the side walls, or between the top slab and the middle partition wall of each tunnel. During construction, the side walls and the top slab of each tunnel are assembled one by one, and the prefabricated slab of each side wall and a wall-attaching enclosure are used as an in-situ casting formwork for concrete casting of the side wall. By means of the present invention, neither supports nor formworks are required during construction, thereby improving the efficiency and environment.
Owner:SHANGHAI URBAN CONSTRUCTION DESIGN & RESEARCH INSTITUTE (GROUP) CO LTD

Tubular structure system for vehicles

The invention relates to a tubular structure system for a vehicle comprising two lateral tubes and at least one transverse tube (21). Each transverse tube (21) is held in position at each lateral tube by a junction. This junction has a non-through hole in the lateral tube (20). The transverse tube (21) has a first through hole. The junction has a screw passing through the first through hole and the non-through hole. The system is notable in that it includes a plate (22) having a U-shaped cross-section defining a bottom and two edges. This bottom is positioned between the lateral tube (20) and the transverse tube (21). The plate (22) covers the lateral tube (20). The edges are positioned on the lateral tube (20). The bottom has a second through hole configured for the passage of this screw. (See Fig. 1 for abbreviations.)
Owner:STELLANTIS AUTO SAS

Plastic structure mold for preventing plastic from sticking to the mold

The application provides a plastic structure mold for preventing plastic sticking, relates to the technical field of plastic structure molds, and comprises a mechanical structure system, a hardware execution system and an intelligent control system. The mechanical structure system comprises a bottom plate, a guide rod, a lower mold and a mold sticking prevention mechanism, the lower mold is provided with a mold groove and an air pipe connector, the hardware execution system comprises a driving motor, an air pipe electromagnetic valve, a hydraulic cylinder and various sensors, and the intelligent control system comprises a mold sticking prevention intelligent control, a mold closing buffer control and a sensor adjustment and calibration module. The mold sticking prevention mechanism and airflow are cooperated to break the dependence on a release agent, and the product oil stain problem is solved. The intelligent module dynamically regulates and controls airflow parameters and mold closing states, reduces forming defects and improves efficiency. The sensor adjustment and calibration guarantee reliable data, maintain equipment stability, effectively solve the problems of mold sticking, low production efficiency and equipment damage of existing molds, and improve production stability and product quality.
Owner:SHENZHEN XINYUDA PLASTIC MOULD CO LTD

Mic building shear wall structure system and design method thereof

The application discloses a MIC building shear wall structure system and a design method thereof. The structure system comprises a plurality of standard layer building structures. Each standard layer building structure comprises a cast-in-place area, a first module unit, a second module unit and a third module unit, and the first module unit, the second module unit and the third module unit are all hexahedral structures. The first module unit comprises a prefabricated shear wall, a concrete support shell, a top prefabricated layer and a bottom plate. The second module unit comprises a one-side wall mold, a concrete support shell, a top prefabricated layer and a bottom plate. The third module unit comprises a prefabricated shear wall, a one-side wall mold, a concrete support shell, a top prefabricated layer and a bottom plate. When the structure is spliced on site, the outside of the one-side wall mold is supported on site, and the one-side wall mold is formed into a cast-in-place shear wall in the module by binding steel bars and then pouring concrete. The cast-in-place area comprises a cast-in-place core tube and a cast-in-place area outside the module. The standard layer building structure takes the cast-in-place core tube as a core, and the cast-in-place area outside the module, the first module unit, the second module unit and the third module unit are arranged outward along the cast-in-place core tube.
Owner:ARCHITECTURAL DESIGN & RES INST OF SOUTH CHINA UNIV OF TECH

Contact arc extinguishing structure of switch

A contact arc extinguishing structure of a switch belongs to the technical field of low-voltage apparatuses. Comprising an arc extinguish chamber and a contact system, the arc extinguish chamber comprises a pair of side walls, a plurality of grid sheets and a pair of gas generating parts, the grid sheets are arrayed between the pair of side walls, the gas generating parts are spaced to form an arc channel, the contact system comprises a moving contact, the moving contact comprises a long contact sheet and a short contact sheet, the long contact sheet extends into the arc channel, and the short contact sheet extends into the arc channel. The short contact piece is located on the outer side of the opening of the arc channel, the arc extinguish chamber further comprises a pair of matching surface bosses corresponding to the short contact piece, the matching surface bosses are matched with the swinging track of the short contact piece, a distance is kept between the pair of matching surface bosses and the head of the short contact piece, and the distance is smaller than 2 mm. As the matching surface boss which enables the end, facing the short contact piece, of the arc extinguish chamber is additionally arranged in the structure system of the arc extinguish chamber, a gap between the head of the short contact piece and the arc extinguish chamber can be greatly reduced through the matching surface boss, the amount of arc gas flowing into the head of the short contact piece is remarkably reduced, and breakdown at the short contact piece is effectively prevented.
Owner:CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)

Lightweight inflatable bag panel supporting structure

PendingCN121929349ASpace shuttlesCosmonautic safety/emergency devicesClassical mechanicsDiagonal
The light-weight inflatable bag panel supporting structure comprises a main structure framework, a panel and an air bag, the main structure framework is of an oblique quadrangular prism structure formed by rigidly connecting a plurality of truss rod pieces through a plurality of multi-way wrapping and sleeving pieces, and the truss rod pieces are arranged on the two parallelogram side faces of the main structure framework along the short diagonal lines correspondingly; the inclined quadrangular prism structure is divided into two horizontal triangular prism structures, and the multi-way wrapping and sleeving piece comprises a plurality of sleeves for installing truss rod pieces. The panels are fixedly connected to the upper surface and the lower surface of the main structure framework; the space between the panel and the adjacent horizontal triangular prism structure is filled with the air bags, and the air bags are inflated to be used for supporting the panel. According to the panel supporting structure, an inflatable bag structure system is adopted, the out-of-plane static and dynamic rigidity of a large-breadth panel in wing and rudder components is effectively improved, and the panel supporting structure is simple in structure, efficient and beneficial to achieving light-weight design.
Owner:BEIJING AEROSPACE TECH INST +1

Steel reinforcement framework structure system for expanding geotechnical cloth bag and using method

The invention belongs to the technical field of cloth bag pile structures, and discloses a steel reinforcement framework structure system for expanding a geotechnical cloth bag and a using method. Comprising a multifunctional integrated reinforcement cage framework, a multi-stage self-adaptive variable-diameter expansion mechanism, a geotechnical cloth bag and a program-controlled cascade power transmission system, cascade steel strands are asymmetrically tensioned through a winding machine, and all stages of hinge units are driven to sequentially turn over according to a preset time sequence; and the sleeve type elastic telescopic arc-shaped pipe is driven to abut against the irregular hole wall in the telescopic compensation state, grout is injected into the double-layer sandwich sealing cavity through the grouting flow channel synchronously, and a plurality of active grout leakage prevention barriers are constructed in the complex karst stratum through the composite sealing pressure intensity generated by mechanical extrusion and chemical expansion. The problems of serious slurry leakage, out-of-control filling coefficient, pile breaking hidden danger and the like caused by irregular hole walls in complex karst stratum construction of traditional cloth bag piles can be effectively solved, and the cloth bag pile has the characteristics of high construction precision, low material loss, high stratum self-adaptive capacity and the like.
Owner:CHINA FIRST METALLURGICAL GROUP

Construction system for connecting steel pipe pile and bearing platform and construction method

The invention provides a construction system for connecting a steel pipe pile and a bearing platform and a construction method. The construction system for connecting the steel pipe pile and the bearing platform comprises a steel pipe pile body, a connector component, a pile top anchoring component and bearing platform concrete, the connector component comprises a steel pipe pile connecting section and a first connecting plate, the pile top anchoring component comprises a second connecting plate and a plurality of shear plates, and the steel pipe pile body is connected with the connector component through a fastener. The connector component and the pile top anchoring component are connected through a fastener, and the bearing platform concrete wraps the part of the outer wall, close to the top, of the pile body of the steel pipe pile, the connector component and the pile top anchoring component. According to the construction system for connecting the steel pipe pile and the bearing platform, the construction procedure can be simplified, the construction efficiency can be improved, and the mechanical property, especially the anti-seismic and anti-drawing capacity, of connection of the pile body of the steel pipe pile and the bearing platform can be guaranteed.
Owner:SHANGHAI CONSTRUCTION GROUP CO LTD