47results about How to "Avoid demolition" patented technology

The invention belongs to the technical field of wind power, and particularly relates to an in-service fan in-situ transformation capacity expansion method. The method comprises the steps of foundation transformation, supporting tower lifting and transformation and generator set replacement. The foundation transformation comprises the steps that anchor rods are installed on an original foundation, reinforcing steel bars are implanted, flange screws are embedded, and concrete is poured so that the foundation face can be enlarged. The transformation of the supporting tower comprises the step of lifting and heightening an original supporting tower so as to adapt to a unit with a larger diameter; the generator set is replaced by installing components with larger power generation capacity on the top of a new tower drum, and the components comprise a cabin, a hub, blades and the like. The method is suitable for transformation and capacity expansion of the old wind power plant, the transformation cost can be greatly reduced, and the wind power generation efficiency is improved.

The invention relates to the technical field of transport rolling unloading operation, in particular to a ship unloader berthing rolling unloading system and method.The ship unloader berthing rolling unloading system comprises a rigid string protection mechanism and a rolling unloading mechanism, and the rigid string protection mechanism is arranged at the edge of a transport ship; the rolling unloading mechanism comprises a deck bridge head, a sleeper, an ashore bridge head, a slope track and a rigid gap bridge, and the deck bridge head is fixedly arranged on the transport ship and corresponds to the deck track; the sleeper is fixedly arranged on the berthing wharf, the ashore bridge head is arranged at the top, one end of the rigid gap bridge is hinged to the ashore bridge head, the other end of the rigid gap bridge is in free lap joint with the deck bridge head, one end of the slope track is located on the wharf track, and the other end of the slope track is located on the sleeper and connected with the ashore bridge head. By changing the traditional roll-roll loading mode of jacking, steering and rail falling and the conventional berthing mode of the transport ship, the effect that the ship unloader unloads the ship from the transport ship conveniently is achieved, the ship unloading risk of the ship unloader is reduced, and the working efficiency of roll unloading operation of the ship unloader is improved.

The present invention discloses a fully automatic ejector waste cleaning device, comprising a waste cleaning conveyor belt, a paper feeding conveyor belt, an upper ejector mechanism, a lower ejector mechanism, and a paper inserting conveyor mechanism, wherein a plurality of through holes are arranged in a matrix on the surface of the waste cleaning conveyor belt; the paper feeding conveyor belt is arranged at the head end of the waste cleaning conveyor belt; the upper ejector mechanism can be raised and lowered above the waste cleaning conveyor belt, and the lower ejector mechanism can be raised and lowered below the waste cleaning conveyor belt, and the upper ejector mechanism and the lower ejector mechanism cooperate to separate the printed product from the waste edge; the paper inserting conveyor mechanism is slidably arranged at the end of the waste cleaning conveyor belt, and the paper inserting conveyor mechanism is driven by a paper receiving driving device to move toward the direction of the waste cleaning conveyor belt to extend between the printed product and the waste edge to hold the printed product, and the printed product is sent to the second stacking device by the paper inserting conveyor mechanism, and the waste edge is sent to the waste frame by the waste cleaning conveyor belt. The present invention realizes fully automatic paper feeding, waste cleaning, and paper collection, speeds up the waste cleaning speed, and improves production efficiency.

The utility model relates to the technical field of stairs, in particular to a step ladder convenient for lossless disassembly and assembly, which comprises a ladder body, a top connecting structure and a bottom connecting structure, pedals are arranged on the ladder body; the top connecting structure comprises a stress beam and a transition part arranged on the stress beam, and the ladder body is detachably connected with the transition part; the bottom fixing structure comprises a mounting column and a base, the base is arranged on the outdoor terrace, and the mounting column is arranged at the bottom of the ladder body and inserted into the base. The detachable ladder has the advantages that the ladder body is detachably connected with a building through the top connecting structure and the bottom connecting structure, and welding is avoided; and therefore, the installation is convenient, and the welding steps are reduced. And through the bottom connecting structure, when the step ladder is dismounted, the bottom connecting structure can be directly separated only by dismounting the top connecting structure, and then the ladder body is taken down, so that the recycling of the step ladder is realized.

The application relates to a permanent and temporary combined loop pipe roof underground excavation construction subway station tunnel arch opening reinforcing structure and a construction method, and belongs to the underground space construction technical field. The structure comprises a temporary support structure and a permanent support structure. The temporary support structure comprises pipe roof lining arranged on the lower sides of loop pipe roofs near the opening area on both sides, and door-shaped support steel frames are arranged under the pipe roof lining and fixed to the bottom of the tunnel. The permanent support structure comprises a loop reinforcing beam, a longitudinal reinforcing beam and pipe roof anchor bars. The longitudinal reinforcing beam is arranged along the cross sections of the loop pipe roofs on both sides of the opening area. One end of the pipe roof anchor bar is implanted into the cross section of the loop pipe roof, and the other end is implanted into the longitudinal reinforcing beam. Loop reinforcing beams are arranged under the two ends of the longitudinal reinforcing beam. The loop reinforcing beam is fixed to the loop pipe roof in the non-opening area through loop reinforcing beam anchor bars. The temporary support structure and the permanent support structure are combined, the tunnel arch structure can be reinforced under the condition of a large opening, a new stable stress system can be formed after the loop pipe roof is partially cut off, and the safety of the tunnel construction is ensured.

The utility model provides a cutter head structure of a multi-needle machine, and belongs to the technical field of multi-needle machine equipment. Which comprises a fixed seat with a cutter feeding groove, a fixed cutter module is fixedly mounted on the fixed seat, and is characterized in that a movable cutter seat capable of being driven by a driving part to be close to or far away from the cutter feeding groove is slidably arranged on the fixed seat, a movable cutter frame is connected to the movable cutter seat through a fastener, a movable cutter is detachably mounted on the movable cutter frame, and the fixed cutter module is fixedly mounted on the fixed seat. The movable cutter is arranged in the sliding direction of the movable cutter holder and partially extends into the cutter feeding groove. According to the cutter head, the moving cutter holder connected to the driving part is prevented from being detached, the moving cutter holder is detached to integrally detach and replace the moving cutter, maintenance personnel can more easily maintain and repair the cutter head, the driving part does not need to be adjusted, stroke setting of the driving part is not affected, operation steps in the maintenance process are reduced, and the maintenance efficiency is improved. And the convenience of assembly, disassembly, repair and maintenance of the cutterhead is improved.

The invention provides a secondary reinforcing device and method for a reinforced concrete beam without dismantling a reinforcing steel plate, the device comprises an anchoring part, a connecting steel bar and a reinforced concrete layer, the steel plate is attached to the surface of the concrete beam and the reinforced steel plate, and the steel plate and the concrete beam are connected and anchored through bolts; the anchoring parts are connected with the concrete beam in an anchoring mode, meanwhile, the anchoring parts are arranged below the steel plate in a striding mode, the anchoring parts are connected into a whole through the connecting steel bars, and the area where the anchoring parts, the connecting steel bars and the steel plate are located is filled with the reinforced concrete pattern layer. On the basis that an existing reinforcing steel plate does not need to be dismantled, the flexural capacity and rigidity of the concrete beam are improved, construction steps are reduced, the construction efficiency is improved, meanwhile, the adopted geopolymer concrete is low in carbon emission and high in fireproof performance, and it can be guaranteed that the construction process is environmentally friendly and resistant to high temperature in the construction process.

The utility model discloses an assembly type adjustable eccentric support hanger device, which is used for solving the problem of deflection of an electromechanical support hanger base embedded in a building, and comprises a shelving top plate and an adjustable screw rod, the shelving top plate is arranged above the electromechanical support hanger embedded plate through an adjustable screw rod, is positioned on the central axis of the vertical pipe well, and is used for supporting electromechanical pipelines and equipment; the adjustable screw rod adopts a bending structure, and the top and the bottom of the adjustable screw rod are respectively connected with the shelving top plate and the electromechanical support hanger embedded plate through threads; by adjusting threads at the top and the bottom of the adjustable screw rod, the height adjustment between the shelving top plate and the electromechanical support hanger embedded plate in the Z-axis direction is achieved, and the transverse adjustment of the top of the adjustable screw rod in the X-axis direction is achieved. According to the utility model, the pre-embedded position of the pre-embedded plate of the electromechanical support hanger is rectified in X, Y and Z directions through the adjustable screw rod, so that the problem that the pre-embedded support hanger and the original position cannot be assembled is solved, and the precision of installing electromechanical pipelines and equipment is improved.

The utility model discloses a battery pack for simply testing the pressure between battery cells, which comprises a battery shell and the battery cells, the battery cells are assembled in the battery shell, a pressure testing assembly is further arranged in the battery shell, and the pressure testing assembly comprises first white paper, carbon paper and second white paper which are sequentially stacked together. The utility model aims to solve the technical problems in the prior art, provides the battery pack for simply testing the pressure between the battery cells, can be used for testing the full size of the battery cells, cannot cause larger errors due to point taking problems, and is simple in structure, convenient to test and low in cost.

A kind of low-pressure casting mould's turnover side mould, including side mould, side mould seat, the side mould is fixedly connected with side mould seat, side mould is used to cooperate with lower mould, upper mould and form cavity, a oil cylinder support is fixedly installed on mould base, the side mould seat is slidably fitted on the slide rail of oil cylinder support, an oil cylinder is fixed on the outside of oil cylinder support, the piston rod of the oil cylinder is hingedly fixed with side mould seat by passing through oil cylinder support, guiding device is arranged on the side mould seat, limiting device is arranged on the oil cylinder support, the position of guiding device and limiting device corresponds, the oil cylinder drives side mould seat to slide, so that guiding device and limiting device contact and form limiting guide structure, realize side mould turnover.

The present invention relates to the field of rail transit technology, and discloses a removable support structure suitable for assembled tracks of urban rail transit, wherein the support structure is a wedge-shaped support block, and the wedge-shaped support block is arranged between a prefabricated track plate and an arc-shaped shield segment, and the prefabricated track plate is composited with a vibration-damping pad layer, and the vibration-damping pad layer is located under the prefabricated track plate; two prefabricated plate reserved guide grooves that engage with the wedge-shaped support block are arranged on both sides of the prefabricated track plate, and before the filling layer is formed, the wedge-shaped support block is used to support the prefabricated track plate, and after the filling layer is formed, the wedge-shaped support block is unloaded internally, and the support of the wedge-shaped support block to the prefabricated track plate is cancelled, so as to achieve close contact between the vibration-damping pad layer and the filling layer. The present invention can quickly support and cancel the support of the prefabricated track plate by changing the internal structure of the support structure under the prefabricated track plate, and also ensures the vibration reduction effect of the assembled track of rail transit.

The present invention relates to the field of rail transit technology, and discloses a vibration-damping prefabricated track structure with unloadable support and a construction method, wherein the structure includes a grouting layer, a vibration-damping cushion layer and a prefabricated track plate in order from bottom to top; the vibration-damping cushion layer is arranged between the prefabricated track plate and the grouting layer; the grouting layer is made of a self-compacting concrete material with good fluidity, and the grouting layer is used to support the prefabricated track structure; the vibration-damping cushion layer and the prefabricated track plate are composited into one body, and the vibration-damping cushion layer is arranged under the prefabricated track plate for vibration reduction; two prefabricated plate reserved guide grooves that can be engaged with wedge-shaped support blocks are provided on both sides of the prefabricated track plate, and before the grouting layer is formed, the wedge-shaped support block is used to support the vibration-damping cushion layer and the prefabricated track plate, and after the grouting layer is formed, the wedge-shaped support block is unloaded internally, and the support of the wedge-shaped support block to the vibration-damping cushion layer and the prefabricated track plate is cancelled, so as to achieve contact between the vibration-damping cushion layer and the grouting layer. The vibration-damping prefabricated track structure of the present invention has a good vibration reduction effect.

The utility model relates to the technical field of rut testing machines, in particular to a high-applicability asphalt mixture rut testing machine which comprises a workbench, a machine cover is fixedly installed on the surface of the workbench, an air cylinder is fixedly installed on the top of the machine cover, a telescopic rod is fixedly installed at the output end of the air cylinder, and the telescopic rod is connected with the workbench. A lifting plate is fixedly mounted at the bottom end of the telescopic rod, a fixing block is fixedly mounted in the machine cover, and a translation block is slidably connected to the bottom face of the lifting plate. According to the device disclosed by the utility model, the bolt is pulled, so that the bolt slides in the convex block, meanwhile, the spring is extruded by the baffle block, and the bolt is respectively matched with the first insertion hole and the second insertion hole, so that an asphalt plate test piece on the surface of the mixing disc can be rotated, and personnel can conveniently carry out transverse and longitudinal tests on the asphalt plate test piece; the practicability of personnel to the rut testing machine is improved, the personnel are prevented from manually changing the position of the asphalt plate test piece, and the personnel operation is convenient.

The utility model discloses a ship fender capable of reducing impact force, which comprises a mounting plate, a box body arranged on the mounting plate, a sliding frame arranged in the box body in a sliding manner, a connecting plate arranged on the sliding frame, a plurality of first springs arranged between the connecting plate and the mounting plate, and a plurality of inserting blocks arranged on the connecting plate, according to the D-shaped fender, due to the rotatability of the rotating rod, when one end of the rotating rod is located in the notch, the rotating rod and the sliding rod are coaxial, so that the D-shaped fender can be smoothly placed on the inserting blocks, the rotating rod is pulled through the elastic force of the second spring to enable the sliding rod and the sliding piece to stretch out towards the top ends of the inserting blocks, and the D-shaped fender can be placed on the inserting blocks. Through rotation of the rotating rod, the rotating rod horizontally limits the bottom end of the D-shaped fender, connection between the D-shaped fender and the connecting plate is guaranteed through resilience force generated after compression of the second spring, and compared with the prior art, the D-shaped fender is convenient to install and replace, meanwhile, disassembly of the whole device is avoided, and loss is reduced.

The utility model discloses a vertical metal pressure vessel tank body, and relates to the technical field of vertical metal tanks. The vertical metal pressure vessel tank comprises a tank body, the lower surface of the tank body is fixedly connected with supporting legs, the outer surface of the tank body is sleeved with a mounting ring, the lower surface of the mounting ring is provided with a storage groove, the top wall of the storage groove is fixedly connected with a protective sleeve, the lower side of the protective sleeve is fixedly connected with a driving ring, and the outer surface of the tank body is fixedly connected with a sealing ring. A second containing groove is formed in the upper surface of the sealing ring, an extension block is fixedly connected to the outer surface of the sealing ring, movement grooves are formed in the upper surface of the extension block and the upper surface of the sealing ring, and driving assemblies are arranged in the movement grooves. And a worker can conveniently collect the protective sleeve through the driving assembly, so that the problem that the protective sleeve needs to be dismounted during repairing is avoided, and the overall efficiency during repairing of the tank body is greatly improved.

The utility model relates to the technical field of cutting devices, in particular to a high-temperature-resistant adhesive tape cutting device with a waste edge collecting structure. The device comprises a mounting frame, supporting assemblies are symmetrically arranged at the two corners of one side of the top of the mounting frame, a mother rolling rod is detachably arranged between the two supporting assemblies, a transmission assembly is movably arranged on the side face of one supporting assembly, and a pair of L-shaped supporting frames is arranged on the side, away from the supporting assemblies, of the top of the mounting frame; a connecting plate is arranged between the two L-shaped supporting frames, a sliding groove is formed in the connecting plate, a waste edge recycling assembly is downwards arranged in the connecting plate, and a pair of first mounting plates are arranged between the supporting assembly and the L-shaped supporting frames. The problems that when waste edges are collected by existing cutting equipment, waste materials need to be discharged frequently, so that the working efficiency is very affected, and a mother roll is very troublesome and complex to install are solved.

The utility model relates to the field of home decoration equipment, and discloses a hidden intelligent control ventilation assembly for home decoration, which comprises a base, a fan is slidably connected in the base, a ventilation pipe is fixedly connected to the top end of the fan, a fixing seat is fixedly connected to the front end of the ventilation pipe, clamping grooves are formed in the left end and the right end of the fan, and the fixing seat is fixedly connected to the fixing seat. The device comprises a base, placement grooves are formed in the left end and the right end of the base, clamping blocks are slidably connected to the interiors of the two placement grooves, pushing rings are fixedly connected to the outer sides of the clamping blocks, first pushing springs are arranged in the two clamping grooves, and connecting clamping rings are fixedly connected to the ends, far away from each other, of the two clamping blocks. According to the utility model, the base and the fan can be quickly disassembled, so that the base is prevented from being disassembled and reinstalled by spending extra time, the maintenance cost is shortened, the maintenance time is shortened, and the fan is simpler to maintain and replace.

The utility model relates to the technical field of aromatic hydrocarbon solvent rectification, in particular to a high-boiling-point aromatic hydrocarbon rectification heat exchanger which comprises a base, a rotating handle is arranged on one side of the base, a screw rod is installed on one side of the rotating handle, the surface of the screw rod is in threaded connection with a clamping block, and sliding grooves are formed in the two ends of the middle of the upper surface of the base. Sliding grooves are formed in the two sides of the heat exchanger body, sliding blocks are slidably connected into the sliding grooves, clamping grooves are formed in one sides of the sliding blocks, the heat exchanger body is installed at the tops of the sliding blocks, a feeding port is formed in the top end of one side of the heat exchanger body, a discharging port is formed in the top end of the other side of the heat exchanger body, and convex rings are installed on the two sides of the heat exchanger body. A cover plate is connected into the convex ring in a sleeved mode, and vertical frames are installed on the two sides of the outer surface of the convex ring. According to the improved heat exchanger, tedious bolt dismounting and mounting operation is avoided, the dismounting and mounting efficiency of the heat exchanger is improved, meanwhile, the interior of the heat exchanger is easier to clean and maintain, and the distillation efficiency of an aromatic solvent is improved.

The utility model discloses a battery pack and a power utilization device, the battery pack has a first direction, the battery pack comprises a box body, a plurality of battery monomers, a busbar and a flexible circuit board, the box body has an accommodating cavity, and the plurality of battery monomers are arranged in the accommodating cavity and are arranged along the first direction; the busbar is arranged in the accommodating cavity and is conductively connected with at least one battery monomer; the flexible circuit board is arranged in the accommodating cavity; the flexible circuit board comprises a first body, a connecting part and a connecting sheet, and the first body is arranged on one side, connected with the busbar, of the battery monomer; the connecting part is connected with the first body; the connecting part comprises a first bonding pad and a second bonding pad which are arranged along a first direction, and the first bonding pad is conductively connected with the second bonding pad; the connecting sheet is conductively connected with the first bonding pad or the second bonding pad; one end, away from the connecting part, of the connecting sheet is conductively connected with one busbar. The flexible circuit board can be used for many times, and the maintenance difficulty and the maintenance cost of the battery pack are reduced.

The utility model belongs to the technical field of electrical engineering construction, and particularly relates to a wire fixing device for electrical engineering construction, which comprises a mounting seat and further comprises a mounting ring fixedly arranged on the mounting seat and provided with an opening for placing a wire; the sealing ring is arranged in the mounting ring in a sliding manner and is used for sealing the opening of the mounting ring, and the sealing ring is also provided with an opening; by arranging the mounting ring and the sealing ring, if the electric wire is mistakenly selected and needs to be replaced, only the position fixation of the sealing ring needs to be removed, then the sealing ring is moved, the opening of the sealing ring is rotated again to correspond to the opening of the mounting ring, and the electric wire can be replaced. Therefore, the opening of the mounting ring can be vacant, and the original wire can be taken out from the vacant opening for replacement, thereby avoiding the disassembly of all wire clamps when the wire needs to be replaced.

The utility model relates to the technical field of fire-fighting smoke exhaust fans, and discloses a fire-fighting smoke exhaust fan convenient to clean. Comprising an air guide pipe and further comprises a telescopic hose arranged on one side of the air guide pipe, and the other end of the telescopic hose is connected with a fan body; by arranging the mounting assembly and the moving assembly, the mounting assembly can drive the telescopic hoses on the two sides of the fan body to be compressed, so that the flanges at the two ends of the telescopic hoses are separated from the flanges at the two ends of the fan body, and meanwhile, the fan body can be horizontally moved to the other side above the bottom plate through the moving assembly after being detached; the fan body is convenient to clean, the cleaning assembly is arranged, when the cleaning assembly is used, the two sides of the blade can be slightly cleaned through the cleaning brush, the blade can be installed in the support to be taken out and independently cleaned, then all the positions of the blade can be conveniently cleaned, the cleaning difficulty of the blade is lowered, and the cleaning dead angle during blade cleaning is reduced.

The invention provides a preset assembly type elevator foundation device and an assembly method. The device comprises a first fixing base, a second fixing base and a connecting rod, wherein the first fixing base and the second fixing base are spliced with each other, and the connecting rod penetrates through the first fixing base and the second fixing base. Wherein a first limiting part is arranged on the first fixing seat, and a second limiting part matched with the first limiting part is arranged on the second fixing seat; the first limiting part and the second limiting part are buckled so as to splice the first fixed base and the second fixed base; the connecting rod penetrates through the first limiting part and the second limiting part at the same time. By means of the elevator foundation device, repeated use of the elevator foundation device can be achieved, and environmental pollution and resource waste caused when the foundation is broken and dismantled are reduced.

The present invention provides a dock upgrading and reconstruction structure and a dock upgrading and reconstruction construction method, wherein the dock upgrading and reconstruction structure includes a new dock arranged on the side of the old dock facing the water area, a plurality of foundation piles are arranged at the bottom of the new dock, a space is left between the old dock and the new dock, a plurality of transition plates are arranged in the space, one end of the transition plate is arranged on the old dock, and the other end is arranged on the new dock, a buffer plate is arranged between the rear side of the transition plate and the old dock, a buffer plate is also arranged between the front side and the new dock, and a buffer pad is arranged between the lower side of the transition plate and the old dock and the new dock. The present invention improves the construction efficiency of the upgrading and reconstruction of the old dock, shortens the construction period, reduces the construction cost, and reduces the operation interruption time caused by the upgrading and reconstruction of the old dock.

This invention discloses a wall tie for non-removable external scaffolding, relating to the field of building technology. The wall tie includes a wall-connecting plate in a herringbone shape. A fixing block is fixedly connected to the left side of the wall-connecting plate. Two symmetrical support frames are arranged on the side of the fixing block away from the wall-connecting plate. The two support frames have identical structures and are U-shaped. This wall tie for non-removable external scaffolding avoids safety hazards through installation and does not hinder subsequent construction processes. It effectively prevents workers from removing the wall tie during later wall construction and kitchen / bathroom waterproofing, ensuring a sufficient number and reasonable distribution of wall ties. It also eliminates the common quality problem of sealing wall openings. Traditional wall tie structures require pre-reserved openings during wall construction, leading to high costs and poor results in sealing these openings later, and even causing wall leakage.

The invention discloses an auxiliary positioning tool for a headlamp of a rail transit vehicle and an installation method, solves the problem that the installation efficiency of the headlamp is low in the prior art, and has the beneficial effects that the headlamp does not need to be carried repeatedly, and the installation efficiency of the headlamp is improved. Comprising a main frame assembly, the main frame assembly is in a frame shape and has the same radian as a headlamp mounting base, a headlamp can be clamped in the hollow position of the main frame assembly, the shape of the main frame assembly is consistent with the shape of a headlamp shell, the outer side face of the main frame assembly is matched with the headlamp mounting base, and the main frame assembly is provided with a first opening. The fastener penetrates through the headlamp shell and is connected with the first opening; positioning assemblies are arranged on the two opposite sides, away from the outer side face of the headlamp mounting base, of the main frame assembly correspondingly, the positioning assemblies are higher than the headlamp mounting base, and the positioning assemblies are detachably connected with the main frame assembly.

The utility model discloses a multi-station material receiving device for silicon steel sheets, which belongs to the field of silicon steel sheet processing and comprises a stand column and a silicon steel sheet material receiving mechanism, the silicon steel sheet material receiving mechanism comprises two guide rails, the guide rails are fixedly connected with the stand column, and a moving table is arranged between the two guide rails; by arranging the guide rail, the moving table, the driving assembly and the multiple sets of silicon steel sheet receiving plates, multi-station receiving can be conveniently conducted on silicon steel sheets in the silicon steel sheet receiving process, the silicon steel sheet receiving plates can be pulled out by arranging the mounting plates and the rollers, and therefore the silicon steel sheets can be conveniently received. In this way, the silicon steel sheet receiving plate stacked with silicon steel sheets can be conveniently hoisted subsequently, the problem that when a traditional receiving trolley is used for receiving materials, an upper-layer receiving structure needs to be dismantled, and operation is tedious is solved, the time needed for hoisting is saved, and therefore the production efficiency of the silicon steel sheets is improved.

The present invention discloses a temporary diagonal brace reinforcement method suitable for cantilever steel frames, which belongs to the technical field of building structure construction, and comprises the following steps: step one, hoisting and welding the fixed end main beam and the cantilever column of the reinforcement layer respectively, and hoisting multiple groups of fixed end main beams in parallel; step two, welding the end plates at the shear wall node position and the cantilever column node position respectively, and welding the two ends of the temporary diagonal brace to the end plates at the two node positions respectively; step three, constructing the multi-span parts in the same way as the above steps, welding the end plates and temporary diagonal braces of the corresponding span areas; step four, after the reinforcement layer structure is installed, installing the upper structure on the upper side of the reinforcement layer; step five, after the upper structure is installed, cutting off all the end plates of the reinforcement layer, and removing them together with the temporary diagonal brace, and the reinforcement layer is transformed from a truss system to a frame system to reach a designed forming state. The present invention can solve the problem of inconvenience in cantilever steel frame construction without temporary piers.

The utility model belongs to the technical field of composite rollers, and particularly relates to a composite roller. Comprising a roller body sleeved with a roller sleeve; the roller shafts are arranged at the front and rear ends of the roller body; the dismounting assembly is arranged on the roller sleeve and used for locking the roller sleeve on the outer side of the roller body; the disassembling and assembling assembly comprises a left rotating cover, a right rotating cover and a rotating shaft, the rotating shaft is arranged on the left rotating cover; the connecting plate is rotationally arranged on the rotating shaft; the right rotating cover is arranged on the connecting plate, the right rotating cover covers the outer right side of the roller sleeve, and the right rotating cover is in contact with the left rotating cover; and the locking part is arranged on the left rotating cover and the right rotating cover and is used for fixing the left rotating cover and the right rotating cover into a whole. The utility model provides a composite roller with a detachable and reusable roller sleeve.

The invention discloses an assembly type building enclosure which comprises a frame provided with a plurality of nodes and further comprises a plurality of assembly units, the assembly units are installed on the frame, each assembly unit is composed of an enclosure main unit and a plurality of enclosure auxiliary units, the enclosure main units are arranged on the nodes, and the enclosure auxiliary units are arranged on the nodes. The multiple enclosure slave units are arranged on the periphery of the enclosure main unit.

According to the pier-beam reverse construction method for the side pier cast-in-place beam of the cable-stayed swivel bridge, a pier column jointly supported by a main bridge cast-in-place beam and an approach bridge cast-in-place beam is constructed in two times, the first time of construction is conducted to the elevation position of the padstone bottom of the main bridge cast-in-place beam, and steel bars needed by the second time of construction of the approach bridge side pier column are reserved during the first time of construction of the pier column. When the first-time concrete strength meets 85% of the design strength, a support of the approach bridge cast-in-place beam is constructed, meanwhile, the position of a tensioning notch of main beam closure prestress is reserved, and meanwhile, it is avoided that a temporary support intrudes into the position of an originally-designed support. A support is erected on a main bridge cast-in-place beam according to design requirements to complete cast-in-place section construction at the position of a side pier and closure block construction after rotation, tensioning grouting and anchor sealing of closure prestressed steel beams are completed after closure block concrete strength meets requirements, and then approach bridge side pier lifting and padstone and support pre-burying construction is completed according to pier column construction requirements. And after the concrete strength of the approach bridge side abutments, the supports and the like reaches the standard, permanent supports are installed, the approach bridge temporary supporting columns are dismantled, the approach bridge cast-in-place beams completely fall on the permanent supports, and system conversion of the approach bridge cast-in-place beams is completed.