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68results about How to "Reasonable power transmission" patented technology

Connecting structure for unmanned aerial vehicle body and wing

The present invention discloses a connection structure of an airframe-airfoil of an unmanned aerial vehicle, which is realized by the connection of a pair of front and back joints of the airfoil and a pair of front and back joints at the oil box soleplate of the airframe that is the front joint of the airfoil is connected with the front joint of the airframe by bolts, and the back joint of the airfoil is connected with the back joint of the airframe by bolts. The airfoil and the airframe are linked just by four pairs of joints and four connection pieces, and the force transmission of the connection pieces is reasonable, which reduces the connection of joint parts and the concentration of stress; a majority of load is discharged during flying, which improves the anti-fatigue performance. The present invention has the characteristics of small size, good flexibility and large production batch. The structure can improve the rigidity of the joints to ensure the firm connection of the airframe and the airfoil and the high efficiency of the structure, and the structure belongs to the external connection, which has strong changeability and meets the requirement of combat readiness.
Owner:BEIHANG UNIV

Steel pipe concrete column-steel beam outer separation plate type node structure and construction method thereof

The invention discloses a steel pipe concrete column-steel beam outer separation plate type node structure and a construction method thereof. The node structure comprises a steel pipe concrete column, a steel beam located on the outer side of the steel pipe concrete column, and a beam column connection structure connected between the steel pipe concrete column and the steel beam; the steel pipe concrete column and the steel beam are arranged vertically; the steel pipe concrete column comprises a rectangular steel pipe column, four groups of open vertical ribs and a core concrete structure; the beam column connection structure comprises an upper external separation plate and a lower external separation plate; and the outer end of the upper part of the steel beam is fixedly connected with the upper external separation plate, and the outer end of the lower part of the steel beam is fixedly connected with the lower external separation plate. The construction method of the node structure comprises the following steps: step 1, assembling and welding the open vertical ribs and the rectangular steel pipe column; step 2, welding the beam column connection structure; step 3, connecting the steel beam; and step 4, pouring concrete. The steel pipe concrete column-steel beam outer separation plate type node structure is reasonable in structure, simple and convenient to construct, good in use effect and clear in force transmission; stress concentration and deformation concentration problems of a steel pipe concrete column-steel beam node can be effectively alleviated, and the seismic resistance is good.
Owner:CHANGAN UNIV

Assembling and energy consuming structural system with combined fluted frameworks and shear walls

The invention discloses an assembling and energy consuming structural system with combined fluted frameworks and shear walls. The system is characterized in that the system comprises concrete-filled steel tubular columns, fluted web plate beams and fluted steel plate shear walls; the concrete-filled steel tubular columns, the fluted web plate beams and the fluted steel plate shear walls are connected through bolts; the cross section of each fluted web plate beam is of an H shape; flange plates comprising the fluted web plate beams with the H-shaped cross sections are smooth steel plates; web plates are fluted steel plates; the fluted steel plate shear walls are made of fluted steel plates. The assembling and energy consuming structural system with the combined fluted frameworks and the shear walls is an assembly type high-rise steel-structure energy consuming building system which has the advantages that the construction progress is fast, the force transmission path is simple, and the energy consuming capacity is high.
Owner:HEFEI UNIV OF TECH

Jacking system for closure section of continuous rigid frame bridge and jacking deviation rectifying method

The invention discloses a jacking system for a closure section of a continuous rigid frame bridge and a jacking deviation rectifying method. The jacking system is composed of a top plate jacking system and a bottom plate jacking system. The top plate jacking system comprises two sets of top plate embedded bases arranged at the ends of two cantilever beam sections of the continuous rigid frame bridge correspondingly, top plate rigid supporting structures supported between the two sets of top plate embedded bases and a top plate jacking mechanism. The bottom plate jacking system comprises two sets of bottom plate embedded bases arranged at the ends of the two cantilever beam sections correspondingly, bottom plate rigid supporting structures supported between the two sets of bottom plate embedded bases and a bottom plate jacking mechanism. The jacking deviation rectifying method comprises the steps of (1) measurement of position deviation of the cantilever beam sections, (2) adjustment of elevation deviation of the cantilever beam sections, (3) deviation rectifying adjustment and (4) longitudinal jacking. The jacking system is simple in structure, reasonable in design, easy and convenient to construct and good in using effect, the jacking deviation rectifying process of the cantilever beam sections on the two sides of the closure section can be completed easily, conveniently and rapidly, and the rectifying requirements of lateral deviation and reverse deviation of the cantilever beam sections can be met.
Owner:XIAN HIGHWAY INST

Fully assembled segmented anti-buckling supporting member with crossed cores capable of being directly replaced

The invention relates to a fully assembled segmented anti-buckling supporting member with crossed cores capable of being directly replaced, and belongs to the field of structural engineering. The anti-buckling supporting member is composed of two edge section crossed core components, n middle section crossed core components, two edge section assembled-type peripheral constraining devices, (n-1) middle section assembled-type peripheral constraining devices, 4(n+1) core outer side L-shaped connecting members, a first high-strength bolt group and a second high-strength bolt group. Based on a component segmented assembled-type designing concept, an ultra-long ultra-heavy anti-buckling supporting member is divided into a plurality of sections to overcome the inconveniences of long and heavy components during the processing, transporting and installing processes. The core outer side L-shaped connecting members and the core components are arranged to tightly jack and transmit axial force in segments, weakening areas are arranged on the core components to achieve plasticity damage control, the releasing and replacing of damaged cores can be achieved without dismantling the peripheral constraining devices from the anti-buckling supporting members by the above arrangements, and post-quake repairing operation is optimized.
Owner:BEIJING UNIV OF TECH

Wind power mixing tower barrel based on edge stiffening combined shell

The invention discloses a wind power mixing tower barrel based on an edge stiffening combined shell, and relates to the technical field of wind power generation. The upper portion of the wind power mixing tower barrel is a pure steel tower barrel, and the lower portion of the wind power mixing tower barrel is a combined tower barrel. The combined tower barrel is formed by splicing two to eight edge stiffening combined shells along the circumferential direction, and is assembled along the vertical section. The edge stiffening combined shell is composed of hollow interlayer steel tube concrete and outer end plates, inner end plates and stiffening plates arranged along the periphery of the hollow interlayer steel tube concrete. The hollow interlayer steel tube concrete is composed of an outerlayer steel tube, an inner layer steel tube and concrete. Bolts, steel angles, T-shaped steel parts or a combination of the three steel parts are welded on one side of the steel pipe in advance, andthen concrete is poured. According to the wind power mixing tower barrel, the advantages of the combined structure are brought into full play, the stress form is reasonable, the connection is reliable, all the components can be prefabricated in advance and assemblied in filed, the construction efficiency is high, the material consumption is saved, the transport is convenient, and the engineering application prospect is wide.
Owner:CHONGQING UNIV

Vehicle-mounted emergency rescue folding bridge

The invention discloses a vehicle-mounted emergency rescue folding bridge, which comprises a transport vehicle and a transport frame, wherein the transport frame is placed on the transport vehicle; bridge hydraulic cylinders are hinged to the upper end of the transport frame in a front-back symmetry mode. The output end of the bridge hydraulic cylinder is hinged with a bridge main body; a bridge steel cable is arranged between the transport frame and the bridge main body; the right end of the transport frame is slidably connected with a balance frame. A front supporting hydraulic cylinder anda rear supporting hydraulic cylinder are symmetrically arranged at the lower end of the transport frame. A first bridge surface hydraulic cylinder is hinged to the right end of the bridge main body; afirst bridge deck slab is hinged to the output end of the first bridge deck hydraulic cylinder; the left end of the first bridge deck slab is hinged to the bridge main body; and the left end of the bridge main body is hinged with a second bridge deck hydraulic cylinder. A temporary bridge can be erected on a damaged and blocked road in a disaster area, the requirement for erecting a temporary bridge in emergency situations such as natural disasters is specially met, and rapid folding, unfolding and transferring are facilitated.
Owner:辽源市汽车改装有限公司

Vehicle rear frame assembly

The invention relates to a vehicle rear frame assembly, which comprises a rear side wall inner plate casting and a top cover rear cross beam connected to the rear side wall inner plate casting. The rear side wall inner plate casting comprises a rear side wall inner plate and a D column joint which are cast into a whole, and the top cover rear cross beam is connected to the rear side wall inner plate casting through the D column joint. According to the vehicle rear frame assembly, the casting process design is adopted, a plurality of parts in the prior art are integrated, the structural integration degree is high, the number of the parts is reduced, and the assembling precision is improved.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

Lifting closure construction method for arch ribs of arch bridge

InactiveCN112195799AShorten the construction periodSolve the problem that construction cannot be carried out at the same timeBridge erection/assemblyArch-type bridgeArchitectural engineeringStructural engineering
The invention provides a lifting closure construction method of arch ribs of an arch bridge. An arch rib is divided into two arch foot-arch rib sections, an arch rib lifting section and two arch rib closure sections for connecting the arch rib lifting section and the arch foot-arch rib sections. The arch foot-arch rib sections are directly assembled at the designed installation position, the archrib lifting section is assembled on a support below the designed installation position, and the arch rib lifting section is lifted to the designed elevation after assembly and connected with the archfoot-arch rib sections through the closure sections. The arch foot side arch ribs and the arch rib lifting section can be spliced at the same time, and the construction period can be shortened; the arch rib lifting section is machined at a lower position and then lifted to the designed elevation after machining is completed, so that the aerial work amount is reduced, the deformation amount of thearch rib in the horizontal direction and the vertical direction in the lifting process is reduced, and the construction safety and the installation precision are improved.
Owner:CCCC FOURTH HIGHWAY ENG

Connection structure of T-shaped superimposed shear wall edge member

The invention relates to a connection structure of a T-shaped superimposed shear wall edge member. The connection structure of the T-shaped superimposed shear wall edge member includes first superimposed flange wallboards, second superimposed flange wallboards, superimposed webs and a post-pouring zone of the T-shaped edge member; horizontal reinforcing bars in inner superimposed layers and outersuperimposed layers of the first superimposed flange wallboards, the second superimposed flange wallboards and the superimposed webs extend into the post-pouring zone of the T-shaped edge member to acertain length, and are bended and turned to extend into cavity layers of the superimposed wallboards to form semi-open annular horizontal reinforcing bars; horizontal hooped reinforcing bars in the post-pouring zone of the T-shaped edge member are overlapped on the semi-open annular horizontal reinforcing bars at the ends of the superimposed flange wallboards and superimposed web wallboards and are bound to form a plurality of enclosed hoops; and vertical load-bearing reinforcing bars are inserted into the enclosed hoops, and concrete is poured into the cavity layers of the superimposed wallboards and the post-pouring zone of the T-shaped edge member to anchor the horizontal reinforcing bars. According to the connection structure of the T-shaped superimposed shear wall edge member, the post-pouring zone of the T-shaped edge member is reliably connected with the superimposed wallboards on the three sides of the T-shaped edge member by inserting the vertical load-bearing reinforcing bars into the enclosed hoops.
Owner:WUHAN UNIV OF TECH

Bottom plate jacking system for jacking closure section of continuous rigid frame bridge and construction method of bottom plate jacking system

The invention discloses a bottom plate jacking system for jacking a closure section of a continuous rigid frame bridge and a construction method of the bottom plate jacking system. The bottom plate jacking system comprises two sets of bottom plate embedded bases arranged at the ends of two cantilever beam sections of the continuous rigid frame bridge correspondingly, rigid supporting structures supported between the two sets of bottom plate embedded bases and a jacking mechanism used for jacking the rigid supporting structures. Each set of bottom plate embedded bases comprises a left bottom plate embedded base and a right bottom plate embedded base distributed on the same cantilever beam section. The rigid supporting structures are supporting structures for longitudinal jacking or supporting structures for oblique jacking. One ends of the rigid supporting structures are the fixing ends, and the other ends of the rigid supporting structures are jacking ends. The construction method comprises the steps of (1) construction of the bottom plate embedded bases, (2) mounting of the jacking mechanism and (3) mounting of the rigid supporting structures. The bottom plate jacking system is reasonable in design, easy and convenient to construct and good in use effect, the jacking process of the cantilever beam sections on the two sides of the closure section can be completed easily, conveniently and rapidly, and the correction requirements of lateral deviation and reverse deviation of the cantilever beam sections can be met.
Owner:XIAN HIGHWAY INST

Column and curved beam horizontal and flexible connection space structure system

The invention provides a column and curved beam horizontal and flexible connection space structure system. Columns and curved beams are horizontally and flexibly connected through horizontal and flexible connecting devices, each horizontal and flexible connecting device comprises a column connector, a curved beam connector a and a steel pull rod for connecting the column connector with the curved beam connector. A vertical suspending connecting device is further connected onto each curved beam and comprises a curved beam connector b and a movable steel suspending rod. The column and curved beam horizontal and flexible connection space structure system is a grid structure and suspended-cable structure combined space structure system. In a space truss structure system, the strength and ductility of a grid curved beam structure are improved, bending resistance bearing capacity of the curved beams is remarkably improved, and deflection deformation of the curved beams is reduced. In a suspended-cable structure, suspended steel structure curved beams are connected through flexible suspending rods. The column and curved beam horizontal and flexible connection space structure system has the flexible connection characteristic, accordingly is simple in overall appearance, even in stress, good in anti-seismic energy dissipation performance and easy to repair and maintain and meets the comfort degree requirement of a suspended steel structure.
Owner:ANHUI HONGLU STEEL CONSTR (GROUP) CO LTD +1

Side plate connecting beam and column joint structure and connecting method

The invention discloses a side plate connecting beam and column joint structure and a connecting method. Two parallelly-arranged transverse reinforcing ribs are arranged between two column flanges ofan H type column, and the planes where the maximum surfaces of the transverse reinforcing ribs are located are simultaneously perpendicular to the planes where the maximum surfaces of the column flanges are located and the plane where the maximum surface of a column web is located; side plates are welded to the H type column, and lug plates are welded to the side plates; and enlarging wing platesare arranged on the two sides of beam flanges of an H type beam in the weak axis direction of the H type column, the end faces of the beam flanges and the enlarging wing plates are welded to the otherside faces of the side plates, and the side faces of the enlarging wing plates are welded to the side faces of the lug plates. Through the arrangement of the enlarging wing plate structures, the connecting strength of a beam and column joint is improved. By the adoption of the joint structure, under the effect of cyclic loading, plastic deformation is concentrated on end beam sections reinforcedby steel beam flange enlarging wings, a joint domain is in an elastic state, outward movement of a plastic hinge on the beam can be well achieved under the effect of cyclic loading, and the requirements of the ductility and the bearing performance of the joint are increased.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Composite foundation of large-diameter high-temperature fused salt storage tank and using method thereof

The invention provides a composite foundation of a large-diameter high-temperature fused salt storage tank and a using method thereof. The composite foundation comprises a variable rigidity top plate,a rigid base plate and an outer ring wall, wherein the variable rigidity top plate is connected with the outer ring wall, the rigid base plate is integrally poured with the outer ring wall, the variable rigidity top plate is tightly attached to the bottom of the storage tank, an outer thermal insulation layer is arranged between the variable rigidity top plate and the outer ring wall, an intermediate thermal insulation filling layer is arranged between the variable rigidity top plate and the rigid base plate, and warehouse separating steel beams are arranged in a vertical direction of the intermediate thermal insulation filling layer at equal intervals. According to the invention, load of a tank top, a tank wall and a tank body insulation layer and vertical pressure of fused salt in the storage tank are directly borne through the variable rigidity tapered top plate and a special-shaped ring beam, and all vertical loads and foundation reaction forces are borne through the rigid base plate; and the outer ring wall bears the lateral pressure of the upper fused salt and a thermal insulation material, the intermediate thermal insulation filling layer realizes thermal insulation and heat preservation, all parts are clear in division of labor and cooperatively work, and the composite foundation is new composite foundation capable of integrating bearing and insulating of the large-diameter high-temperature fused salt storage tank.
Owner:POWERCHINA XIBEI ENG

Totally-assembled type hollow interlayer steel pipe concrete combined tower barrel and joints

The invention discloses a totally-assembled type hollow interlayer steel pipe concrete combined tower barrel and joints, and relates to the technical field of wind power generation. The system comprises a hollow interlayer steel pipe concrete barrel body, transverse joints, longitudinal joints and corresponding structures. The hollow interlayer steel pipe concrete barrel body is composed of an outer-layer steel pipe, an inner-layer steel pipe and concrete, studs, angle iron, T-shaped steel or the combination of the studs, the angle iron, the T-shaped steel is welded to one side of each steel pipe in advance, and then concrete pouring is conducted. The hollow interlayer steel pipe concrete barrel body is divided into 2-8 sheets in the ring direction, connection is conducted through the transverse joints, and two forms are adopted in the transverse joints. Segmented assembling of the hollow interlayer steel pipe concrete barrel body in the height direction is achieved, various segments are connected through the longitudinal joints, and two forms are adopted in the longitudinal joints. According to the system, the advantages of a combined structure are brought into full play, the stress form is reasonable, and joint connection is reliable. All the components can be prefabricated in advance, field assembling is adopted, transportation is convenient, the construction efficiency is improved, the material usage amount is reduced, and wide project application prospects are achieved.
Owner:CHONGQING UNIV

Full-assembly-type buckling-restrained brace with linear inner core capable of being replaced directly

ActiveCN108625652AOvercome the disadvantages of dismantling peripheral restraintsMeet the needs of post-earthquake function restorationProtective buildings/sheltersShock proofingBuckling-restrained braceAxial pressure
The invention relates to a full-assembly-type buckling-restrained brace with a linear inner core capable of being replaced directly and belongs to the field of structural engineering. The full-assembly-type buckling-restrained brace is constituted by two linear inner core components, an assembly-type periphery restraining device, two inner core outer side connecting cover plates and a first high-strength bolt group. On the basis of the inner core sectional assembly-type design concept, the axial pressure is transmitted through the linear inner core components in a sectional jacking mode, and axial tension is transmitted through the inner core outer side connecting cover plates and the first high-strength bolt group. The plastic developing areas of the inner core components are controlled by arranging dog bone weakening parts or grooving weakening parts on the linear inner core components, thus the two inner core components can be pulled away from the periphery restraining device to bereplaced only by disassembling the first high-strength bolt group and the inner core outer side connecting cover plates after an earthquake while the buckling-restrained brace meets basic bearing andenergy consumption, the disadvantage that when a traditional assembly-type buckling-restrained brace replaces an inner core, the periphery restraining device further needs to be disassembled is overcome, and the post-earthquake repairing work is optimized.
Owner:BEIJING UNIV OF TECH

Fully-assembled segmented anti-buckling support with I-shaped cores capable of being directly replaced

The inVention relates to a fully-assembled segmented anti-buckling support with I-shaped cores capable of being directly replaced and belongs to the field of structural engineering. The anti-bucklingsupport comprises two edge core components, n intermediate core components, two edge assembled peripheral restraining deVices with flange plates, n-1 intermediate assembled peripheral restraining deVices with flange plates, 2(n+1) core outer connecting coVer plates, a first high-strength bolt group and a second high-strength bolt group. On the basis of a segment assembled design concept of the components, the super-long and super-heaVy anti-buckling support is diVided into seVeral segments to oVercome the defect of inconVenience of the long and heaVy components in the process of machining, transportation and installation. An axial force is transmitted through segmented jacking of the core outer connecting coVer plates and the core components, and weakening parts are arranged on the core components to achieVe plastic damage control. Through the arrangement aboVe, according to the anti-buckling support, there is no need to dismantle the peripheral restraining deVices after an earthquake,the damaged core components can be directly detached from the peripheral restraining deVices for replacement, and post-earthquake repair work is optimized.
Owner:BEIJING UNIV OF TECH

Traction beam

The invention provides a traction beam which comprises two traction beam single pieces arranged side by side, wherein bent parts which are bent in opposite directions are respectively arranged at the front ends of the traction beam single pieces, so that a horn-shaped opening is formed in the front end of the traction beam; the front end of the traction beam is connected with a vehicle body buffering beam, and the rear end of the traction beam is connected with a sleeper beam. According to the traction beam, the vehicle body sleeper beam is safely connected with the buffering beam, so that the requirement for the intensity of the vehicle body is met; the horn-shaped opening structure is arranged at the front end of the traction beam, so that the requirement on a rotating angle of a vehicle hook is met; a vehicle hook mounting seat is connected with the traction beam through a rivet; due to welding heat input, the safety is improved; under the reinforcement action of a reinforcement plate, the structure of the traction beam is safer and more reliable; the traction beam single piece is made of a full 6-series opening-type profile, so that the anti-stress and anti-corrosion comparison is more outstanding; by the use of the full profile, the processing difficulty is reduced; by the adoption of welding of the profile and a plate, the weight reducing requirement is considered, and enough intensity can be met.
Owner:CRRC QINGDAO SIFANG CO LTD

Mechanism for controlling valve opening and closing, variable valve device and method

The invention discloses a mechanism for controlling opening and closing of a valve, a variable valve device and a method. The problem of poor in-cylinder braking effect in the prior art is solved, thebeneficial effect of realizing in-cylinder braking is achieved, the specific solution of the mechanism for controlling the opening and closing of the valve comprises a plunger sleeve, a rotatable control sleeve is arranged on the plunger sleeve part in the circumferential direction, plungers are arranged in the plunger sleeve and the control sleeve, oil control molded lines are arranged in the plungers, protrusions capable of moving along the oil control molded lines of the plungers are arranged on the inner sides of the control sleeves, one ends of the plungers exceed the control sleeve, oilinlet and return holes and oil outlet holes are formed in the side portions, close to the other ends of the plungers, of the plunger sleeve, oil cavities are formed between the end parts of the plungers and the plunger sleeve in the plunger sleeve, the ends, away from the oil outlet holes, of the plungers are arranged in a shell, a rolling body is movably arranged in the shell, the rolling body can move along the inner side of the shell under the action of external force and can make contact with the end parts of the plungers.
Owner:LONGKOU ZHONGYU THERMAL MANAGEMENT SYST SCIAND TECH

Hanging board, hanging part, installing node of outer hanging board and preparation method of hanging board

The invention relates to a hanging board, a hanging part, an installing node of an outer hanging board and a preparation method of the hanging board. The hanging board comprises a hanging board body, wherein a reinforcing groove is formed in the middle of the hanging board body, a first portion and a second portion are formed at the upper portion of the hanging board body, the first portion comprises a connecting board, a clamp-connecting groove is formed in the upper end of the second portion, a cover board is fixedly arranged at the upper portion of the connecting board and is provided with a groove, the groove of the cover board and the reinforcing groove of the connecting board form a penetrating-connecting hole, the first portion and the second portion are connected, the included angle formed by the first portion and the second portion is an acute angle, and a connecting portion is arranged at the bottom end of a hanging part body. The characteristic of the strong tension resistance capability of a steel material are fully utilized. In addition, the hanging part does not deform itself due to a shear force and a bending moment force, the thickness of the connecting board or the hanging board can be appropriately decreased, the cost is saved, the economic benefits are increased, and the hanging board is ingenious in design and reasonable in stress.
Owner:CHINA MINGSHENG DRAWIN TECH INVESTMENT CO LTD

Hanging board, hanging part, installing node of outer hanging board and preparation method of hanging board

The invention relates to a hanging board, a hanging part, an installing node of an outer hanging board and a preparation method of the hanging board. The hanging board comprises a hanging board body, wherein the hanging board body comprises a hanging-connecting board, a connecting board, a fixing board and a diagonal pull plate, one end of the connecting board is connected with the hanging-connecting board, the other end of the connecting board is connected with the fixing board, a first connecting portion and a second connecting portion are arranged at the upper portion and the lower portion of the hanging-connecting board respectively, the fixing board is arranged at the upper portion of one end of the connecting board, one end of the diagonal pull plate is connected with the connecting board, and the other end of the diagonal pull plate is connected with the fixing board. The connecting board and the fixing board are connected by adopting the diagonal pull plate, so that the diagonal pull plate bears a certain pull force, the shear force and bending moment force borne by the connecting board are decreased, and the characteristic of the strong tension resistance capability of a steel material are fully utilized. In addition, the hanging part does not deform itself due to the shear force and the bending moment force, the overall thickness of the connecting board or the hanging board can be appropriately decreased, the cost is saved, the economic benefits are increased, and the hanging board does not form a weak portion due to the influence of the shear force and the bending moment force and is ingenious in design and reasonable in stress.
Owner:CHINA MINGSHENG DRAWIN TECH INVESTMENT CO LTD

Prestressed carbon fiber-reinforced plastic plate anchorage device and manufacturing method thereof

The invention discloses a prestressed carbon fiber-reinforced plastic plate anchorage device and a manufacturing method thereof. The device comprises an upper steel plate and a lower steel plate and the upper and lower steel plates are used for clamping a plate. The manufacturing method comprises that multiple wedge-shaped grooves are arranged between the upper and lower steel plates, the surfaces of the wedge-shaped grooves are uniformly coated with a release agent, the grooves are filled with epoxy resin, the upper and lower steel plates are fastened through anchor bolts, the plate is slowly inserted into one end of the two steel plates from the other end along the surface groove, and after the epoxy resin is completely cured, the plate is anchored to a concrete member to be reinforced through anchor bolts. The prestressed carbon fiber-reinforced plastic plate anchorage device is prepared through the above method. The anchorage device has a simple design, reasonable force transmission, good reliability and good stability. The anchorage device has high efficiency anchoring performances. The plate does not slide or the anchorage device inner plate is not damaged even if the carbon fiber plate can be stretched until cracking.
Owner:HARBIN INST OF TECH

Vertical connecting node for fabricated building edge module and using method thereof

The invention relates to the field of building construction, in particular to a vertical connecting node for a fabricated building edge module. The vertical connecting node for the fabricated buildingedge module and a using method thereof comprise columns (1) and beams (2), and the vertical connecting node is characterized by further comprising connecting corner pieces (3), a T-shaped connectingpiece (4), a backing plate (5) and inclined supporting plates (6), wherein two connecting members (7) are sequentially arranged in the vertical direction and the columns (1) are arranged vertically, and one ends of the two connecting members (7) are connected through the T-shaped connecting piece (4); and the backing plate (5) is arranged between the two beams (2). The using method of the verticalconnecting node for the fabricated building edge module is characterized by comprising the following steps of (1) manufacturing the connecting members; and (2) building. The vertical connecting nodeis convenient to install, high in environmental adaptability and high in mechanical performance.
Owner:SHANGHAI BAOYE GRP CORP

Non-conventional winding system for high-multiplying-power bridge crane

The invention discloses a non-conventional winding system for a high-multiplying-power bridge crane. The system comprises a winding barrel, a fixed pulley block, a balanced pulley block, a movable pulley block and a steel wire rope, which are arranged from top to bottom, wherein a rope unwinding end and a rope winding end of the steel wire rope are fixed at two sides of the winding barrel respectively; a rope unwinding section of the steel wire rope sequentially winds around rope unwinding pulley combinations in the movable pulley block and the fixed pulley block in a mutual staggering manner;a rope winding section of the steel wire rope sequentially winds around rope winding pulley combinations in the movable pulley block and the fixed pulley block in the mutual staggering manner; the steel wire rope is located at a transition section between the rope unwinding section and the rope winding section and winds around the balanced pulley block. According to the non-conventional winding system disclosed by the invention, hoisting tonnages are improved through the increasing of multiplying power of the pulley blocks; the maximum deflection angle of an unwinding barrel of the steel wirerope is reduced through improving a rope winding manner, a transverse force on a side wall of a winding barrel rope groove is reduced, the abrasion of the steel wire rope is reduced, the safety and reliability of hoisting are improved and the winding problem of the high-tonnage and high-multiplying-power bridge crane is solved; the non-conventional winding system has the characteristics of economical efficiency, practicability, novelty and the like.
Owner:KERUN ELECTRO MECHANICAL ENG

Floating type wind power foundation with steel-concrete mixed structure

The invention discloses a steel-concrete mixed structure floating type wind power foundation, and relates to the technical field of offshore wind power generation. The system comprises a buoy, a transition section, a transverse support steel pipe, an inclined support steel pipe, a heaving plate and a horizontal coupling beam. The buoys are made of concrete materials, prestressed tendons are arranged in the radial directions of the buoys, and upper joints of the buoys are reinforced through inner and outer double-layer steel pipes. The upper part of the transition section is connected with the bottom of the tower drum through a flange; the lower part of the transition section is welded with the steel pipe in the buoy; the transverse supporting steel pipe is used for being connected with the buoy and penetrating the transverse supporting steel pipe into the buoy. The inclined strut steel pipe is used for connecting the buoy and the horizontal coupling beam, and the two ends of the inclined strut penetrate into the buoy and the horizontal coupling beam; the heaving plate is a concrete plate at the bottom of the buoy; and the horizontal coupling beam is used for connecting a heaving plate below the buoy. The system gives full play to the advantages of steel and concrete, is reasonable in stress form, reliable in connection and low in manufacturing cost, and has wide engineering application prospects.
Owner:CHONGQING UNIV

Splicing joint at steel plate combined shear wall variable section

PendingCN107761991ANo partial bendingAddress weak areasWallsSplice jointShear wall
The invention relates to a splicing joint at a steel plate combined shear wall variable section. The splicing joint comprises an upper steel plate combined shear wall and a lower steel plate combinedshear wall. A partition plate is arranged between the upper steel plate combined shear wall and the lower steel plate combined shear wall. The width of the upper steel plate combined shear wall is different from the width of the lower steel plate combined shear wall. The upper steel plate combined shear wall is provided with an upper reinforced plate. The lower steel plate combined shear wall is provided with a lower reinforced plate. The thickness of the upper reinforced plate is different from that of the lower reinforced plate. The upper steel plate combined shear wall, the lower steel plate combined shear wall, the upper reinforced plate and the lower reinforced plate are fixedly connected with the partition plate. A through hole is formed in the middle of the partition plate, and theposition of the through hole corresponds to a cavity of a steel plate combined shear wall. The splicing joint has the beneficial effects that by arranging the thickened reinforced plates, the load ofthe upper steel plate combined shear wall is effectively transmitted to the lower steel plate combined shear wall by the thickened reinforced plates, and the upper steel plate combined shear wall is arranged to be tightly attached to a side plate; and meanwhile, by arranging a plugging and welding hole, it is ensured that local bending and bulge cannot appear in the reinforced plates , and workshop making is facilitated.
Owner:HANGXIAO STEEL STRUCTURE

Steel pipe constraint profile steel type recycled concrete column-beam assembly type joint and mounting method

The invention discloses a steel pipe constraint profile steel type recycled concrete column-beam assembly type joint and a mounting method. The joint is mainly composed of two frame columns, an external pipe sleeve, a connecting component and a profile steel concrete spiral stirrup beam, the external pipe sleeve is arranged between the joints of the two frame columns, the connecting component comprises a threaded fastener, a connecting plate, first H profile steel and U profile steel, the connecting plate is fixed to the frame columns and the external pipe sleeve through the threaded fastener, the first H profile steel is fixed to the connecting plate through the threaded fastener, the steel reinforced concrete spiral stirrup beam is internally provided with second H profile steel matched with the first H profile steel in shape, and the first H profile steel and the second H profile steel are in butt joint and are fixedly in butt joint through the U profile steel and the threaded fastener. The U profile steel is arranged in grooves of the first H profile steel and the second H profile steel, fastening connection is achieved through the threaded fastener, and therefore the structure is stable, and installation is convenient; and the construction method reduces the difficulty and complexity of field construction, and improves the construction efficiency.
Owner:GUANGZHOU UNIVERSITY

A four-angle steel fully assembled anti-buckling bracing that can directly replace the cross-shaped core

ActiveCN108589954BOvercome the disadvantages of dismantling peripheral restraintsMeet the needs of post-earthquake function restorationProtective buildings/sheltersShock proofingAxial pressureClassical mechanics
The invention relates to a four-steel-angle fully-assembled-type buckling-restrained brace with crossed inner cores capable of being directly replaced, and belongs to the field of structural engineering. The buckling-restrained brace comprises two crossed inner core components, a four-steel-angle assembled-type peripheral restraining device, four inner core outer side L-shaped connecting pieces and a first high-strength bolt group. On the basis of the inner core segmented-assembled-type design concept, axial pressure is transmitted through segmented jacking of the crossed inner core components, the inner core outer side L-shaped connecting pieces and the first high-strength bolt group transmit axial tension, dog-bone weakening areas or grooving weakening areas are arranged on the crossed inner core components to control an inner core component plastic development area, thus the buckling-restrained brace meets basic bearing and energy consumption, meanwhile, the two inner core components can be detached from the peripheral restraining device only by detaching the first high-strength bolt group and the inner core outer side L-shaped connecting pieces after an earthquake, the defect that a peripheral restraining device needs to be detached when inner cores of a traditional assembled-type buckling-restrained brace are replaced is effectively overcome, and post-earthquake restore work is optimized.
Owner:BEIJING UNIV OF TECH
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