23results about How to "Clear force transmission path" patented technology

The invention relates to the technical field of civil engineering, in particular to a steel sheet pile supporting device. The steel sheet pile supporting device comprises a pile plate body, an enclosing purlin assembly and a steel pipe support, and the pile plate body is fixedly connected with the enclosing purlin assembly through a hanging piece; the enclosing purlin assembly comprises a front plate, a rear plate and I-shaped steel, the front plate and the rear plate are connected through at least two sets of first bolts, and the length of the first bolts is larger than the distance between the front plate and the rear plate. The I-shaped steel is inserted between the front plate and the rear plate, and the number of the I-shaped steel is 2-3; the steel pipe support is a steel pipe, the steel pipe support is connected with the front plate, at least two sets of first stiffening ribs are arranged at the end of the side, close to the front plate, of the steel pipe support, and the steel pipe support is in threaded connection with the supporting piece through the first bolt holes. According to the supporting device, the assembling procedure is greatly simplified, the connection between the steel pipe support and the enclosing purlin assembly is firmer and more reliable, the load effect under the full working conditions of supporting tension, pressing and the like can be effectively resisted, and the overall stability and the bearing capacity of the supporting device are further improved.

The invention discloses a rotary drilling all-in-one machine and a using method, and belongs to the technical field of rotary drilling, the all-in-one machine comprises a frame, a rotary platform, a slewing bearing and a drilling mechanism, and the drilling mechanism is installed on the frame through the slewing bearing and can be driven by the rotary platform to integrally and horizontally rotate; the drilling mechanism comprises a first outer slide way capable of swinging in a pitching mode, a first inner slide way arranged in the first outer slide way in a sliding mode, a second outer slide way rotationally arranged at the front end of the first inner slide way, a second inner slide way arranged in the second outer slide way in a sliding mode and a pile hammer installed on the second inner slide way. And a plurality of driving devices for driving horizontal rotation, pitching swing, two-stage stretching and retracting, tail end swing and the pile hammer to work are further arranged. Through multi-degree-of-freedom cooperative movement, large-range and multi-angle accurate positioning and flexible operation of the pile hammer in a three-dimensional space are achieved, and the multi-degree-of-freedom pile hammer has the advantages of being compact in structure, good in rigidity, convenient and fast to operate, high in capacity of adapting to complex working conditions, high in construction efficiency and the like.

The application provides a water plant channel system, which comprises a support module and a channel module; the support module comprises: a plurality of parallel and spaced main beams; a plurality of columns, the columns and the main beams one-to-one constitute a single-frame; a secondary beam, which is horizontally and longitudinally arranged at an outwardly extending end of the main beam; a cantilever; and the channel module is a light thin-wall channel, which is detachably installed on the main beam, the secondary beam and the cantilever and located in the single-frame. The support module retains the main structure of bearing and anti-seismic, removes the wallboard, reduces the dead weight, and can achieve a better anti-seismic target; the light thin-wall channel is detachably installed on the support module, the force transmission path is clear, the deformation and displacement of the channel at the end are enlarged, the pressure relief plate device is excited to drain water, and the'solid-liquid' coupling reaction of the channel during the earthquake is weakened. The formed channel system has good structure and anti-seismic performance, is beneficial to achieving the anti-seismic target, is convenient to install and remove, has low cost, has good equipment and instrument compatibility, and has small construction space limitation.

The present invention relates to a groove-bite-type wind-resistant and seismic isolation bearing, comprising a rubber seismic isolation bearing arranged on a seismic isolation layer, wherein the upper and lower surfaces thereof are respectively provided with an upper end plate and a lower end plate for connecting the upper and lower structures of the seismic isolation layer; and a groove-bite-type wind-resistant stiffness adjuster arranged between the upper and lower end plates, comprising a horizontal sliding meshing plate, a reaction anchor plate, a horizontal pull rod, a groove-bite-type plate, a directional disc spring assembly and auxiliary accessories. The horizontal pull rod passes through the reaction anchor plate and is hinged to the groove-bite-type plate. The lower surface of the end of the groove-bite-type plate is processed with a groove that can be pressed into the top of the directional disc spring assembly, and the end of the groove-bite-type plate fits and hooks the horizontal sliding meshing plate. Compared with the prior art, the present invention improves the horizontal stiffness of the seismic isolation layer while also ensuring the seismic isolation effect, can automatically realize stiffness conversion, no parts are damaged during the whole process, and the performance is reliable; the horizontal stiffness value can be adjusted over a wide range, and can be adapted to various "wind vibration + earthquake" collaborative control scenarios.

The utility model discloses a large span and large conversion height spherical net rack suspended ceiling conversion connecting structure, which comprises a conversion steel plate, a vertical support rod, an inclined pull rod and a conversion beam, the conversion steel plate is fixed at the bottom end of a spherical net rack spherical node through a high-strength bolt, the conversion beam is correspondingly arranged below the conversion steel plate, and the conversion beam is parallel to a suspended ceiling main keel. The vertical supporting rods are arranged in the vertical direction, the top ends and the bottom ends of the vertical supporting rods are fixed to the conversion steel plate and the conversion beam respectively, the inclined pull rods are arranged in pairs, the two inclined pull rods arranged in pairs are correspondingly arranged on the two sides of the vertical supporting rods, the top ends and the bottom ends of the inclined pull rods are fixed to the conversion steel plate and the conversion beam respectively, and rod bodies of the inclined pull rods are arranged in an inclined state. The connecting structure is simple in structure, clear in force transmission path and stable in stress, effectively solves the problems that a suspender is prone to'softening and bending 'when the conversion height is large, and a conversion beam is prone to downwarping when the span is large, and achieves the purposes of reducing cost and increasing efficiency.

The invention relates to the technical field of rope-driven parallel robot testing, in particular to a tension cable aerodynamic resistance simulation loading device and loading method in a steady-state flow field environment. The loading device comprises a first cable moving end point and a second cable moving end point, a flexible cable is arranged between the first cable moving end point and the second cable moving end point, a plurality of loading pipes are arranged on the flexible cable at intervals, and a self-adaptive elastic piece is arranged between every two adjacent loading pipes; the pulling mechanism is arranged on the loading pipe, the pulling mechanism comprises at least two stages of pulling assemblies which are arranged in a stacked mode, each stage of pulling assembly comprises a plurality of groups of pulling pieces, and the group number of the previous stage of pulling pieces is two times of the group number of the next stage of pulling pieces; and one end of the loading stay wire is connected with the pulling mechanism, and the loading stay wire penetrates through the sliding mechanism. The distance between the loading pipes is automatically adjusted through deformation of the flexible cable, so that aerodynamic loads uniformly act on the whole cable body, even if the shape of the flexible cable is changed, the stress uniformity can still be kept, and the accuracy of a simulation result is improved.

The application discloses a beam-slab-column assembled cross node connected by steel wedges, which comprises a column unit, four beam slabs matched with the column unit, a first opening arranged on each beam slab, a first groove arranged on the inner wall of the first opening, four beam slabs arranged in parallel and spliced to form a second opening, the column unit arranged at the second opening, a plurality of prefabricated part groups prefabricated in the column unit, each prefabricated part group comprising a pair of prefabricated parts, the first groove used for placing the prefabricated parts, a through hole arranged on the column unit and the beam slab, and a steel wedge penetrating through the through hole to fix the beam slab and the prefabricated part groups on the column unit, wherein the opening direction of the through hole is perpendicular to the opening direction of the first groove, and the two first grooves are arranged in perpendicular. The application has reasonable structure, clear force transmission path, extremely simple construction, industrialized batch production, detachable feature, recycling, high economic benefit and high environmental benefit.

The invention relates to the technical field of vehicle structures, and discloses a vehicle body frame front structure and a vehicle, the vehicle body frame front structure comprises a first anti-collision beam, a second anti-collision beam, a front end frame, a left front longitudinal beam assembly, a right front longitudinal beam assembly, a second beam left extension piece, a second beam right extension piece, a left front wheel cover and a right front wheel cover; the left ends and the right ends of the first anti-collision beam and the second anti-collision beam are fixedly connected with the front end frame, the front ends of the left front longitudinal beam assembly and the right front longitudinal beam assembly are fixedly connected with the first anti-collision beam, and the first anti-collision beam, the left front longitudinal beam assembly and the right front longitudinal beam assembly are located at the same height. The second beam left extending piece is fixedly connected with the front end frame and the left front wheel cover, the second beam right extending piece is fixedly connected with the front end frame and the right front wheel cover, and the second anti-collision beam, the second beam left extending piece and the second beam right extending piece are located at the same height. The first anti-collision beam can transmit collision force to the vehicle body, the second anti-collision beam can transmit the collision force to the left front wheel cover and the right front wheel cover, and the anti-collision performance of the front structure is improved.

The invention relates to the field of building structures, in particular to a spoke type single-layer rigid reticulated shell structure which comprises an inner ring beam, an outer ring beam and a plurality of inner ring beams. The outer ring beam is of a plane structure, and the plane where the outer ring beam and the plane where the inner ring beam are located are not coplanar; the web members are arranged between the inner ring beam and the outer ring beam and used for connecting and supporting the inner ring beam and the outer ring beam which are not coplanar. The inner ring beam and the outer ring beam which are not coplanar and the web members jointly form a reasonable spatial curved surface form, the overall structure is in a three-dimensional stress characteristic, an internal force self-balancing system is formed, only vertical force is transmitted to a lower supporting structure, and the bending moment effect is not generated. Compared with an existing frame and truss structure, the structure height of the support is smaller, the section of the lower supporting structure is smaller, and the structure is light, attractive and economical and applicable; compared with an existing spoke type tensioning structure, the tensioning structure is large in rigidity, small in deformation, easy and convenient to design and construct and higher in adaptability to a building envelope. The invention can be used for building roof structures.

The application relates to the technical field of a driving system of a hot-crossover vehicle, in particular to a double-clutch motorcycle gear shifting system which comprises a gear shifting driving source and a gear shifting shaft, the gear shifting driving source is used for driving the gear shifting shaft to translate, and the double-clutch motorcycle gear shifting system further comprises an auxiliary driving source, the auxiliary driving source is also used for driving the gear shifting shaft to translate. The application forms a double-power cooperative mechanism by adding the auxiliary driving source and the gear shifting driving source to jointly drive the gear shifting shaft to translate, and the gear shifting response speed is obviously improved.

The invention provides an undercarriage of an all-terrain vertical take-off and landing device, an aircraft and a folding and unfolding method. The all-terrain vertical take-off and landing device landing gear comprises a supporting column, an actuating cylinder, a buffer, a connecting rod assembly and a skid, one end of the supporting column is hinged to one end of the buffer to form an axis L4, the other end of the supporting column is provided with an axis L1, one end of the actuating cylinder is hinged to the supporting column, the other end of the actuating cylinder is provided with an axis L2, and the axis L2 is connected with the axis L1. One end of the connecting rod assembly is hinged to the buffer, the other end of the connecting rod assembly is provided with an axis L3, the axis L1, the axis L2 and the axis L4 are parallel, the supporting column and the connecting rod assembly form double rocker arms of the undercarriage, and the end, away from the supporting column, of the buffer is hinged to the skid to form an axis L5. The complex terrain take-off and landing / emergency take-off and landing capacity of small and medium-sized vertical take-off and landing aircrafts is achieved, the requirements of task execution on the ground and the environment are lowered, and the aircraft task execution territorial range is expanded.

The invention relates to an energy dissipation steel module, an assembly method thereof and a building structure, the energy dissipation steel module comprises energy dissipation steel module bodies and trepanning connecting pieces, and the energy dissipation steel module bodies comprise an integral energy dissipation steel module and a separated energy dissipation steel module; the energy dissipation beams are used for replacing ceiling beams in a traditional module to achieve energy dissipation of the steel module. Vertical splicing of the module columns is achieved between the energy dissipation steel module bodies through perforated connecting pieces, and the adjacent energy dissipation steel module bodies in the horizontal direction are spliced through bolts. The invention is high in modularization degree, easy to assemble and good in energy consumption effect, and belongs to the technical field of structural engineering.

The utility model relates to a rigid joint for an open-web truss. The rigid joint is used for connecting a vertical web member and a chord member in an open-web truss structure. The node comprises a reinforced concrete chord member, a steel-encased sleeve, a concrete-filled steel tube vertical web member and a reinforced concrete secondary beam, steel-encased jackets are pre-arranged at the joints of the reinforced concrete chord members, and the junctions of the concrete-filled steel tube vertical web members and the steel-encased jackets are subjected to full penetration groove welding; a stud is arranged on the inner wall of the steel-encased sleeve, a hole is reserved in a vertical web of the steel-encased sleeve, the reinforced concrete chord member can directly penetrate through a cavity in the steel-encased sleeve, a longitudinal bar in the secondary beam can penetrate through the reserved hole, and integrated connection is achieved through concrete grouted in the steel-encased sleeve through pressure. The connecting structure is safe and reliable in node connection, clear in force transmission path and convenient in site construction, and has engineering application value.

The application provides a large-load lightweight aircraft, which comprises a fuselage, wings and several tail wings at the tail of the fuselage, wherein the fuselage comprises a front fuselage part and a rear fuselage part which are fixed through a butt joint frame; the front fuselage part comprises a front fuselage inner frame and a front fuselage outer skin structure, and the rear fuselage part comprises a rear fuselage inner frame and a rear fuselage skin structure, two tail wing connecting heads are symmetrically installed on the rear fuselage inner frame; the wings comprise a wing main body and an aileron, the wing main body comprises a wing skeleton and a wing outer skin structure; the aileron comprises an aileron body and aileron rib boxes installed at both ends of the aileron body; the tail wing comprises a stabilizer provided with a mounting groove at the rear side, and a control surface is installed in the stabilizer mounting groove, and the control surface is driven by a transmission shaft. The application maximally utilizes composite materials for lightweight design, and metal materials are used for reinforcement at key stress positions, so that the light weight, the maneuvering performance, the aerodynamic performance, the durability and the service life are guaranteed.

The invention discloses a reinforced concrete fabricated beam-column wet connection joint and a construction method thereof. The fabricated reinforced concrete frame is one of the main application forms of a fabricated concrete structure. Brackets are arranged at the tops of the prefabricated lower-layer columns, meanwhile, support negative reinforcements are arranged at supports of the prefabricated part of the superposed beam, the requirements for hoisting, erecting and beam end shear resistance of the prefabricated part of the superposed beam are met, longitudinal reinforcements of the upper-layer prefabricated column and the lower-layer prefabricated column are connected through straight threaded sleeves, and beam-column joints are achieved through two-time pouring. According to the method, the bearing capacity of the precast beam can be effectively improved, the requirement for erecting the large-span and large-section precast beam is met, and the problem that the large-span and large-section precast beam end is insufficient in shear resistance is solved. And meanwhile, the hoisting overturning risk of the large-span and large-section precast beam is effectively reduced, and construction safety is guaranteed.

The present invention proposes a detachable connection node and construction method for modular steel structure buildings. The node is used to complete the horizontal and vertical connection between each module unit, including a module unit corner, a vertical node plate, a connecting plate, a vertical high-strength bolt and a lateral single-sided blind hole bolt; the module unit corner includes a module column and two module beams vertically connected to each other, a horizontal node plate, a tooth groove and a sealing plate; the teeth and grooves between the module columns are engaged with each other during on-site construction, and the vertical node plate and the side wall of the module column are connected through the lateral single-sided blind hole bolt during on-site construction to complete the horizontal connection of the module unit; the horizontal node plate and the connecting plate of the upper module unit and the horizontal node plate of the lower module unit are connected through the vertical high-strength bolt during on-site construction, and the positioning holes on the sealing plate and the positioning heads on the upper and lower surfaces of the connecting plate are inserted and positioned during on-site construction to complete the vertical connection of the module unit.

The invention discloses a terrace system for reducing settlement of a first floor building terrace, which is characterized in that the terrace system comprises a floor slab, a cushion layer, a ring beam, a constructional column, a bearing wall and a foundation beam, the floor slab is arranged at the lower part of the first floor, and the cushion layer is arranged below the floor slab; the ring beams are arranged on the periphery of the floor slab, and constructional columns are further arranged at the corners, the ends and the large-span middle position of the floor slab. The bearing wall is arranged on the lower portion of the ring beam, and a foundation beam is arranged below the bearing wall. Compared with the prior art, the rigid floor slab is arranged, the load of the rigid floor slab is directly transmitted to the pile foundation through the bearing wall and the foundation beam, and a backfill soil layer is completely bypassed. The settlement of the fill stratum has no influence on the surface of the floor (terrace), the problems of terrace settlement and cracking are fundamentally solved, the terrace system is independent, the design is simplified, and the terrace system is a self-contained system, is separated from a main body frame of a building and does not depend on the main body frame of the building. The influence on the design of the main body frame is avoided, and the design calculation of the floor structure is simplified. According to the terrace system, the ring beams and the constructional columns are arranged, so that differential settlement and temperature stress are effectively resisted, the terrace structure is higher in integrity, and the service life is longer.

The utility model provides a pipe pile splicing positioning device which comprises a sleeve arranged on the outer side of a pipe pile head and an inter-pipe positioning mechanism, the inter-pipe positioning mechanism comprises a positioning platform, an outer supporting piece and an inner supporting piece, and the outer supporting piece is movably arranged on the positioning platform and can move in the direction close to or away from the sleeve so as to abut against the inner wall of the sleeve; the inner supporting piece is movably arranged on the positioning platform and can move in the direction close to or away from the pipe pile head so as to abut against the outer wall of the pipe pile head. By arranging the positioning platform, the inner supporting piece and the outer supporting piece, a force transmission system of the casing pipe, the outer supporting piece, the positioning platform, the inner supporting piece and the pipe pile head is formed, the overall force transmission path is simple, clear and reasonable, enough support can be provided for the casing pipe to resist the lateral pressure of the outer side soil body borne by the casing pipe, and the construction efficiency is improved. The sleeve is prevented from deviating or inclining, and the construction quality of pile splicing is ensured.

This invention discloses a scaffold connector for easy disassembly of tall formwork structures, comprising uprights, horizontal bars, vertical diagonal bars, a movable hinge plate, and a connecting plate. The uprights and horizontal bars are connected by the connecting plate. The front end of the connecting plate has six connecting teeth, and the inner edge of the connecting plate has three V-shaped connecting hooks. The front end of the horizontal bar includes six horizontal bar protrusions and three diamond-shaped connecting hooks. The horizontal bar protrusions connect with the connecting teeth, and the diamond-shaped connecting hooks connect with the V-shaped connecting hooks. The movable hinge plate is connected to the horizontal bar, and its upper and lower ends are threaded to the diagonal bars. This scaffold connector, through the rational arrangement of the structure of each component, reduces the local pressure on the connecting plate, and the connecting plate and the horizontal bar can be quickly connected or disassembled using a simple push-pull engagement.

The invention relates to a novel multilayer composite traffic steel truss girder bridge and a construction method thereof. The novel multi-layer composite traffic steel truss girder bridge comprises equal-height section truss piece sets, middle fulcrum bracket section truss piece sets, an upper-layer bridge deck system, a lower-layer bridge deck system, equal-height section supporting rods, bracket section supporting rods, bracket section transverse links, track bridge piers, track beams, hanging type stairway beams and hanging type gallery bridges. The equal-height section steel truss girder is a space truss structure system composed of an equal-height section truss piece set, an upper-layer bridge deck system, a lower-layer bridge deck system and equal-height section supporting rods. The equal-height section steel truss girder is connected with a bracket section steel truss girder composed of a middle fulcrum bracket section truss piece set, a bracket section transverse link and a bracket section supporting rod. According to the rail bridge, the rail bridge piers and the rail beams are arranged at the center positions of the upper chord nodes of the main trusses of the truss piece sets at the equal-height sections, the span application range of the steel truss bridge is expanded, the wide prospect of large-scale application is achieved, and sharing of bridge location resources in urban dense areas is promoted.

The invention relates to the technical field of railway line overhead engineering, in particular to a railway auxiliary beam overhead system and an implementation method. A plurality of cross beams are arranged in the extending direction of the track, each cross beam is arranged between the sleepers in a penetrating mode, the two ends of the cross beams are fixedly connected through longitudinal beams, and the longitudinal beams are detachably connected to the tops of the cross beams through high-strength bolts. The transverse lifting beams are supported at the bottoms of the longitudinal beams and fixed to a ground foundation through supporting structures, and a plurality of transverse beams are arranged between every two adjacent transverse lifting beams at intervals. According to the novel railway auxiliary beam overhead system, the advantages of an existing overhead system are fused, the stress mode that the transverse lifting beams and the longitudinal beams are combined is adopted on the whole, a transverse stress system of the transverse lifting beams and a longitudinal beam stress system of a local section are synergistically integrated, the problem that the span of the overhead system is limited is solved, stress is definite, and the construction efficiency is improved. The force transmission path is clear, and the structure is more stable.