44results about How to "Prevent buckling damage" patented technology

The invention relates to a buckling-proof steel plate shear wall with end columns and construction method thereof. The buckling-proof steel plate shear wall comprises a steel structural framework consisting of a left upright column, a right upright column, an upper cross beam and a lower cross beam, wherein a buckling-proof steel plate wall connected with the upper cross beam and the lower cross beam is arranged inside the steel structural framework; the buckling-proof steel plate wall consists of an embedded steel plate in the middle and reinforced concrete cover plates on the two sides; the upper side and the lower side of the embedded steel plate are connected with the upper cross beam and the lower cross beam through an upper fish plate and a lower fish plate respectively; the two sides of the embedded steel plate are connected with a left end column and a right end column through a left fish plate and a right fish plate respectively; column connecting keys and connecting plates are arranged at the upper and lower ends of the end columns respectively; beam connecting keys are arranged on the left and right sides of the bottom side of the upper cross beam respectively; the column connecting keys at the upper ends of the left end column and the right end column are connected with the beam connecting keys of the upper cross beam through bolts respectively; the connecting plates at the lower ends of the left end column and the right end column are connected with the lower cross beam respectively. According to the invention, a stable boundary condition is provided for the steel plate shear wall, and the load-bearing performance and the energy-dissipating capacity of the steel plate shear wall are improved.

A one-way energy-dissipation supporting component comprises a main supporting rod, a one-way energy-dissipation part, end-portion connecting lug plates and pulling rods. The one-way energy-dissipation part is composed of an n-shaped connecting part, an E-shaped connecting component and a bolt connecting pair. The n-shaped connecting component is composed of a first end plate, two parallel plates and friction elements pasted on the surface of the two parallel plates. The first end plate is connected with the two parallel plates, and a kidney-shaped bolt hole is formed in each parallel plate. The E-shaped connecting plates are composed of a second end plate, two parallel clamping plates and a middle plate, wherein the second end plate is connected with the two parallel clamping plate and the middle plate, side surface connecting lug plates are arranged on the two parallel clamping plates, and bolt holes are formed in the two parallel clamping plates and the middle plate. The n-shaped connecting component and the E-shaped connecting component are connected into a whole through the bolt connecting pair. The one-way energy-dissipation component is connected with the main supporting rod. The pull rods are perpendicularly connected with the two parallel clamping plates through the side surface connecting lug plates. The one-way energy-dissipation supporting component has stable and good energy-consumption capacity in earthquakes or wind damage, can avoid buckling damage due to pressing, and can reduce after-calamity maintenance cost.

The invention discloses a pier energy-dissipating and crushing-preventing structure internally provided with energy dissipating steel plates and viscous-elastic material layers. The structure is characterized in that the four sides of a vulnerability area, namely, a bottom section, of a dry-joint section-assembled pier are each provided with two ultra-high performance concrete (UHPC) slabs, the viscous-elastic material layers are arranged between the bottom section of the pier and the UHPC slabs, the UHPC slabs and the bottom section are combined into a whole in the mode that prestress is applied through finish-rolled twisted steel, a pipe is reserved between every two corresponding UHPC slabs, and the energy dissipating steel plates are placed in the pipes. According to the pier energy-dissipating and crushing-preventing structure, it is prevented that the internal bottom section is crushed under exciting of the earthquake action through the UHPC slabs, and the energy dissipating steel plates in the pipes are prevented from being corroded through the compact performance of the UHPC structure; meanwhile, buckling damage to the energy dissipating steel plates can be prevented through UHPC in the peripheries of the pipes, and the energy dissipating steel plates and the viscous-elastic material layers are used for improving the energy dissipating capacity of the dry-joint section-assembled pier under exciting of the earthquake action. By means of the pier energy-dissipating and crushing-preventing structure, it can be guaranteed that the pier has good energy dissipating capacity under exciting of the earthquake action, the bottom section is prevented from being seriously crushed, and the pier is rapidly repaired.

The invention provides a partial filling type double-sleeve buckling-preventing support. The core-replaceable partial filling type double-sleeve buckling-preventing support can consume a large amount of earthquake input energy, reduces the damage to the structure under rare occurrence earthquakes, connects energy consuming cores and a node elastic region through a detachable bolted connection method, can also achieve post-earthquake replacement of the energy consuming core, reuses a restraint unit, and lowers repairing and replacement cost. The core-replaceable partial filling type double-sleeve buckling-preventing support at least comprises (1) the linear type energy consuming cores, (2) an internal steel sleeve restraining the linear type energy consuming core from partially buckling, (3) an external steel sleeve guaranteeing the overall stability of the support, (4) concrete filler between the internal steel sleeve and the external steel sleeve, (5) supporting node stiffening plates, (6) bolt connecting plates and bolts between the energy consuming cores and the supporting node stiffening plates, and (7) steel channel stiffening ribs. The core-replaceable partial filling type double-sleeve buckling-preventing support is convenient to support and is designed flexibly, the internal steel sleeve mainly prevents the linear type energy consuming cores from partial buckling and damage, the outer steel sleeve and the concrete filler mainly prevent the entire support from buckling failure, and the function of the internal steel sleeve and the function of the external steel sleeve are relatively independent. The core-replaceable partial filling type double-sleeve buckling-preventing support has the advantages of being low in machining cost, light in self-weight, good in economic benefit, convenient to construct and the like.

The invention discloses a large-span eccentric lean-against type steel box tied arch bridge surface towing erection construction system. The system comprises a sliding system for supporting and longitudinal sliding of an upper structure of a bridge, a movable supporting device used for supporting the front side of the upper structure of the bridge and a traction system used for dragging the upper structure of the bridge to horizontally move forwards in the longitudinal bridge direction. The movable supporting device is located right in front of the sliding system. The sliding system comprises a temporary supporting structure, a lower sliding way and an upper sliding device. The movable supporting device is a supporting device which is located on a river way and can move forwards and backwards on the river way and comprises a barge and a temporary supporting frame for supporting the upper structure of the bridge. The traction system comprises a traction anchoring structure, a traction mechanism and a traction counter force seat, and the traction counter force seat is located right in front of the upper structure of the bridge. The large-span eccentric lean-against type steel box tied arch bridge surface towing erection construction system is simple in structure, reasonable in design, easy and convenient to construct, good in use effect and capable of simply, conveniently and quickly finishing the surface towing construction process of the large-span eccentric lean-against type steel box tied arch bridge.

The invention belongs to the technical field of civil engineering, and particularly relates to a corrugated steel plate coated cold-formed thin-walled shear wall with a self-resetting energy dissipation support. The corrugated steel plate coated cold-formed thin-walled shear wall comprises a wall panel, a steel wall body framework is arranged on the wall panel, a self-resetting energy dissipation supporting assembly and an anti-pulling piece are arranged in the steel wall body framework, one end of the anti-pulling piece is connected with the steel wall body framework, the other end of the anti-pulling piece is connected with the self-resetting energy dissipation supporting assembly, a self-tapping screw is arranged on the steel wall body framework, and a turn buckle is arranged between the self-resetting energy dissipation supporting assembly and the anti-pulling piece. By arranging the self-resetting energy dissipation supporting assembly, in the using process, the energy dissipation support and the cold-formed thin-walled steel keel type shear wall are connected through bolts, rod pieces in the support are connected through nuts, assembling is convenient, and the problem caused by the fact that the technical quality of constructors is not too hard can be solved; and after the building is dismantled, the steel can be recycled, so that the generation of construction waste is reduced.

A novel buckling energy consumption prevention pipe comprises an outer constraint pipe, an inner core energy consumption pipe and a cover plate; the inner core energy consumption pipe is arranged in the outer constraint pipe in a coaxial clearance manner; at least two rows of energy consumption devices are arranged on the inner core energy consumption pipe in the circular direction, and at least two energy consumption holes are formed in each energy consumption device; longitudinal stiffening ribs are arranged at the positions, between the adjacent rows of energy consumption devices, of the inner core energy consumption pipe, and transverse stiffening devices are arranged between the adjacent longitudinal stiffening ribs; and the two ends of the outer constraint pipe are fixedly connected with the cover plate, and the two ends of the inner core energy consumption pipe stretch out of the cover plate and are in sealed connection. The invention further provides a manufacturing technology of the novel buckling energy consumption prevention pipe. The novel buckling energy consumption prevention pipe and the manufacturing technology of the novel buckling energy consumption prevention pipe have the good ductility, good anti-fatigue performance, good impact resistance performance, good stability, good durability, good bearing force, and good energy consumption performance.

The invention provides a plugging control technology based on low-frequency electromagnetic signal communication and intelligent plugging ball positioning. The plugging control technology comprises afilter screen, a slurry pump, a pressure measuring device, an in-pipe wireless communication device, an out-pipe wireless communication device, an out-pipe plugging control system, a corrugated pipe,a battery, an in-pipe plugging control system and a pilot-operated electromagnetic release valve. The invention provides the plugging control technology based on low-frequency electromagnetic signal communication and plugging ball intelligent positioning. An efficient and accurate plugging process is carried out through accurate positioning of a plugging ball and timely pressurization and decompression of the plugging ball. A control system in the plugging control technology can efficiently and accurately control actions of all devices, finally all the devices can work in an optimal action fitmode, enough deflection can be provided for the plugging ball when the plugging ball passes through a three-way reversing valve through the structure of the corrugated pipe, and meanwhile the plugging position of the plugging ball can be mainly concentrated on two sides of the plugging ball in the plugging process.

The invention provides a honeycomb separated anti-seismic insulation wall, which belongs to the technical field of building construction. The beneficial effect is that it has the characteristics of excellent anti-seismic performance and remarkable thermal insulation effect. The set cable-stayed support improves the strength of the wall body. The bond can provide shear bearing capacity when the concrete cracks in the filled fiber concrete and the bearing capacity is reduced. The elastic bonding material can significantly improve the damping ratio of the wall structure, provide damping while the wall meets the rigidity requirements, and reduce the building structure. Earthquake response, the foam steel plate installed has good ductility and excellent energy dissipation capacity, which can make up for the deficiencies of the traditional wall in seismic resistance and prevent wall buckling damage. The aerated concrete used in the inner and outer leaf wall panels reduces the self-weight of the wall , which greatly improves the seismic capacity of the wall structure, not only solves the shortcomings of the traditional wall thermal insulation effect and insufficient durability, but also maximizes the seismic performance of the wall and significantly reduces the disaster caused by the wall rupture.

The invention discloses a steel/high molecular material interlayer tubular joint for jackets, truss column and other types of ocean platforms. One end of a second metal outer tube is connected with the side wall of a first metal outer tube; the inner cavities of the first and second metal outer tubes are respectively coaxially sheathed on a first inner tube and a second inner tube at intervals; the outer walls of the first and second inner tubes are respectively fixed with a first locating ring and a second locating rings which are clamped in the corresponding grooves in the inner walls of the first and second metal outer tubes; the openings at both ends of the first metal outer tube are respectively connected with a first cover plate in a sealing mode; the non-connecting port of the second metal outer tube is connected with a second cover plate in a sealing mode; an integral casting cavity is respectively formed between the first metal outer tube and first inner tube, between the second metal outer tube and second inner tube, and between the first and second cover plates; a core is cast in the cavity; and the core is made of polyurethane and formed by curing after mixing and reacting polyhydric alcohol and isocyanate in the volume ratio of 1:1. The invention can effectively reduce the stress peak in the tubular joint region, enhance the fatigue strength and have favorable material stability and durability.

The invention discloses a profiled steel sheet-ardealite-calcium silicate board composite floor and a manufacturing method thereof. The manufacturing method comprises the steps that a profiled steel sheet and C-shaped connecting pieces are blanked according to design requirements, and the C-shaped connecting pieces are mounted on the top surface of the profiled steel sheet through self-tapping screws; after all the C-shaped connecting pieces are mounted, the profiled steel sheet with the C-shaped connecting pieces is mounted on a floor beam, and then ardealite slurry is poured; after the ardealite slurry is formed and reaches the strength and the water content required by the design, the calcium silicate board is mounted on the top surfaces of the C-shaped connecting pieces by using special screws for mounting the calcium silicate board. The composite floor gives play to the ardealite filling performance, and the buckling failure risk of the profiled steel sheet is reduced; the strength performance of the ardealite is exerted, and the bearing capacity and the deformation capacity of the floor are improved; the heat preservation, thermal insulation and fire resistance of the ardealite are exerted, and the thermal performance and fireproof ability of the floor are improved; and in addition, application of the ardealite in the floor can further open up a new direction for resourceutilization of the ardealite.

The invention discloses a corrugated steel plate concrete composite shear wall with embedded columns, which is characterized in that two corrugated steel plates are oppositely distributed, concrete is poured between the two corrugated steel plates, concrete layers are arranged on the outer sides of the two corrugated steel plates, and a plurality of first J-shaped hooks are arranged on the inner sides of the two corrugated steel plates; the first J-shaped hooks on the inner sides of the two corrugated steel plates are in one-to-one correspondence, the first J-shaped hook on the inner side of one corrugated baffle is connected with the corresponding first J-shaped hook on the inner side of the other corrugated steel plate in an opposite-pulling mode, embedded columns are arranged at the ends of the two corrugated steel plates, embedded column longitudinal bars are located in a concrete layer, and one C-shaped steel bar corresponds to one corrugated steel plate. The middle of the C-shaped steel bar is connected with the embedded column longitudinal bar, the end of the C-shaped steel bar is fixed to the outer side of the corresponding corrugated steel plate, the second J-shaped hooks are fixed to the inner sides of the two corrugated steel plates, the second J-shaped hooks on the two corrugated steel plates are connected in an opposite-pulling mode, and the shear wall is excellent in anti-seismic performance.