3549 results about "Steel frame" patented technology

A bilateral expanding excavation construction method for a middle pilot tunnel of a tunnel is provided. Section or excavation width of the middle pilot tunnel is generally not larger than that of a common double-line or double-lane tunnel; a step construction method is adopted, and the construction method is the same as that of a common double-line or double-lane tunnel; and the construction method is familiar to constructors, and the construction difficulty is avoided. A primary support section of the middle pilot tunnel can be expanded and excavated after being closed by at least 3 meters; if a side tunnel face is stable, and the problem of the operation height of manual installation of a steel frame and an anchor rod is solved, one-time excavation and support can be achieved, and the construction is more convenient; or otherwise, a side tunnel is excavated according to a two-step or three-step method. The primary support of the middle pilot tunnel can be timely closed; the primary support of the side tunnel and the primary support of the middle pilot tunnel can be completely connected in sequence, and various errors and deformation influences of surrounding rocks and the supportare left at an inverted arch part for treatment; and the construction progress is basically the same as that of the common double-line or double-lane tunnel.

The invention discloses a rice machine steel frame automatic welding method based on machine vision. The rice machine steel frame automatic welding method comprises the steps that S1, original image data are obtained; s2, performing denoising and gray scale standardization processing on the original image data to generate an enhanced image; s3, generating a weld joint candidate region image, a weld joint structure description vector and a stress weighted region image based on the three-dimensional CAD assembly model and the enhanced image; s4, a welding seam track generation model is constructed through the multi-mode pruning attention network, and a continuous three-dimensional welding track is generated; s5, dynamic feasibility verification and welding gun posture planning are carried out on the continuous three-dimensional welding track; s6, discretizing the verified three-dimensional welding track to generate a discrete track point sequence; s7, the discrete track point sequence is bound with welding parameters, and a linkage execution instruction set is generated; and S8, the linkage execution instruction set is sent to a welding control unit, real-time welding state data are collected, and closed-loop control over the welding process is completed. According to the invention, the executability and stability of the welding path are enhanced.

The invention relates to the technical field of box girder reinforcement framework machining, in particular to a bottom web stirrup integrated machining single-machine-head bending device and a forming method of the bottom web stirrup integrated machining single-machine-head bending device. The bending device comprises a straightening mechanism, a feeding and bending mechanism, a transferring mechanism, a welding device and a discharging mechanism. The straightening mechanism comprises a steel bar straightening machine; the feeding and bending mechanism comprises a bending platform, a bending head is arranged in the center of the bending platform, and a steel bar traction device is arranged between the bending head and the straightening mechanism. A reinforcing steel bar cutting device is further arranged between the bending head and the reinforcing steel bar traction device; a regular pushing device is arranged on one side of the bending platform; the transfer mechanism comprises a transfer gripper; the welding device is used for welding the stirrup meshes into an integrated structure; and the discharging mechanism comprises a discharging gripper. According to the bending device, all construction processes for producing the stirrup meshes are smoothly joined, the stirrup mesh bending operation is more efficient, the operation intensity of constructors can be reduced, and the production efficiency of the bottom web stirrup meshes is improved.

The invention belongs to the technical field of transmission tower accessory machining, and discloses a machining stamping device and method for transmission tower angle steel. The machining and punching device for the angle steel of the power transmission tower comprises a punching machine, a steel walking frame is arranged on one side of the punching machine, a lifting compression roller assembly and a lower driving roller assembly which are arranged in parallel up and down are installed on the steel walking frame, a concentric-square-shaped frame is fixedly installed on the side, away from the punching machine, of the steel walking frame, and a plurality of carrier rollers are rotationally installed at the top end of the concentric-square-shaped frame; elastic stress application type swing arm assemblies are installed on the front edge and the rear edge of the top end of the frame shaped like the Chinese character'hui ', and abrasive belt grinding assemblies are installed on the sides, close to the vertical center datum plane of the frame shaped like the Chinese character'hui', of the elastic stress application type swing arm assemblies. The L-shaped angle steel obtained after stamping is completed is conveyed to the multiple carrier rollers through cooperation of the lifting pressing roller assembly and the lower driving roller assembly, and the outer wall face of the L-shaped angle steel is subjected to deburring and grinding operation through the abrasive belt grinding assembly.

The invention discloses a pre-embedded latticed column dynamic aligning and straightening device and a construction method thereof, the device comprises an adjusting mechanism, a locking piece and a supporting steel frame installed on the ground, the supporting steel frame surrounds the periphery of a latticed column, and a composite sensing system is further arranged at the top of the latticed column; wherein one end of the supporting steel frame is arranged in the movable platform in a sleeved mode, the supporting steel frame and the latticed columns are provided with mutually-corresponding preset hole positions for the locking pieces to penetrate through, the adjusting mechanism comprises a plurality of telescopic pieces extending in the vertical direction and the horizontal direction, one end of each telescopic piece extending in the horizontal direction makes contact with the supporting steel frame, and the other end of each telescopic piece makes contact with the latticed columns. The fixed end of the telescopic piece extending in the vertical direction is arranged on the movable platform, and the movable end of the telescopic piece is in contact with the supporting steel frame. According to the method, the straightening efficiency is improved, the couple unbalance and welding seam cracking risks of multi-equipment cooperative adjustment are reduced, a real-time feedback closed-loop control mechanism is formed, and the problem of manual reading error accumulation is avoided.

An assembly of parts for a structural moment connection includes a first connecting component and a second connecting component. The first connecting component is configured to be connected to a first structural frame member. The second connecting component is configured to be connected to a second structural frame member. The first connecting component includes an elongated protrusion. The second connecting component includes a body having an elongated cavity extending inside of the body from a side surface of the body. The elongated protrusion is configured to be received in the elongated cavity such that the first connecting component and the second connecting component produce a moment connection between the first structural frame member and the second structural frame member when the elongated protrusion is received in the elongated cavity.

The invention discloses a self-loading and unloading type diesel generating set structure, and belongs to the technical field of diesel generating sets, the self-loading and unloading type diesel generating set structure comprises a case for installing a diesel generator component, a rack is fixedly installed outside the case, and supporting steel frames are fixedly installed at four corners of the rack; an upper pull rod and a lower pull rod are sequentially and rotationally connected into the supporting steel frame from top to bottom, rectangular columns are rotationally connected to the sides of the upper pull rod and the lower pull rod, the upper pull rod and the lower pull rod are arranged on the supporting steel frame, the inclination between the rectangular columns is the same, and supporting vertical rods are slidably arranged in the rectangular columns in a sleeved mode. A supporting mechanism for keeping the lifting, loading and unloading balance of the case is arranged between the supporting vertical rod and the rectangular column, and the supporting vertical rod lifts to adjust and control the supporting mechanism to automatically stretch and fold for storage; the case can be supported and buffered in the lifting loading and unloading process through the supporting mechanism, the case can stably fall to the ground, loading and unloading vibration of the case is avoided, and the service life of the case is prolonged.

The invention discloses a tunnel construction method for a large deformation section of soft rock, and relates to the technical field of tunnel construction for the large deformation section of the soft rock, and the tunnel construction method for the large deformation section of the soft rock comprises the following steps: drilling shallow large-aperture stress release holes and deep small-aperture stress release holes to form a layered release system; differential pressure grouting is conducted around the stress release holes, and a deep reinforcing ring and a shallow coupling ring are formed; a steel frame is erected, and a three-stage stretching locking bottom supporting assembly is installed to form a closed supporting ring; the bottoms of the adjacent steel frames are crossly connected through prestressed pull rods to form an integral rigid grid; a secondary lining is constructed after the longitudinal attenuation conduction period is judged according to the surrounding rock deformation spatial-temporal characteristics; inverted arch first and then arch wall segmented pouring is adopted, and a delayed expanding agent is doped into arch wall concrete. The method can effectively control surrounding rock deformation in the tunnel construction process of the large deformation section of the soft rock, improves the overall rigidity and stability of a supporting system, ensures that the lining is tightly attached to the surrounding rock, and reduces the construction risk.

The embodiment of the invention provides a shipyard steel framed bent scheme automatic optimization method and system. The method is applied to the technical field of buildings and comprises the following steps: selecting an initial size of a shipyard steel bent column beam section and bent design information based on engineering experience library data, and constructing high-precision input characteristics based on factory design information; based on the high-precision input features, constructing a physical constraint graph neural network, and predicting an initial design scheme meeting the physical constraint; and carrying out multi-objective reinforcement learning optimization on the initial design scheme meeting the physical constraint, and carrying out dynamic adjustment in a virtual simulation environment to obtain optimized steel bent design parameters. In this way, according to the method, the shipyard data are monitored in real time, the graph neural network is constructed for feature extraction and parameter optimization, the optimal steel frame parameters are obtained in dynamic adjustment, and the practical value is high.

This invention relates to the field of photovoltaic module technology and discloses a photovoltaic frame and a photovoltaic module. The photovoltaic frame, comprising multiple steel frame strips connected end-to-end in sequence and corner connectors joining steel frame strips adjacent to each other at a corner; wherein each steel frame strip comprises: a first mounting chamber and second mounting chamber, the second mounting chamber includes a fourth steel wall, the top and bottom of the fourth steel wall are bent to connect to the protruding / recessing portion and one side of the fifth steel wall, respectively, and the free end of the fifth steel wall has a bent section; the corner connector comprises a first connecting part and a second connecting part, joined by a bend; the first connecting part comprises a first connecting wall and a second connecting wall connected by a bend, while the second connecting part comprises a third connecting wall and fourth connecting wall connected by a bend; both the first connecting wall and the third connecting wall are vertical or horizontal steel walls, while the second connecting wall and fourth connecting wall can be horizontal or vertical steel walls; the upper end of the vertical steel wall snaps into the protruding / recessing portion, and the horizontal steel wall snaps into a chamber defined by the lower end of the fourth steel wall, the fifth steel wall, and the bent section on the free end of the fifth steelwall. Thus, the mechanical strength and installation stability of the photovoltaic frame can be improved, and the cost can be reduced.

The invention relates to the technical field of metal roof steel architecture buildings in general building structures, in particular to a damping structure of a metal roof steel architecture building. The device comprises steel structure stand columns, steel structure cross beams, arch-shaped upper suspension rods and metal roof panels. The left end and the right end of each steel structure cross beam are installed at the top ends of the two symmetrical steel structure stand columns. The middle of the arched upper suspension rod is located above the steel structure cross beam, the two ends of the arched upper suspension rod in the length direction correspondingly penetrate through suspension rod through holes formed in the two ends of the steel structure cross beam respectively, and the two ends of the arched upper suspension rod in the length direction are connected with the inner sides of the two steel structure stand columns through straight hole bolt limiting assemblies respectively. The left and right ends of the steel structure cross beam are mounted at the top ends of the steel structure stand columns through arc hole bolt spring limiting assemblies; and the metal roof panel is mounted on the arched upper suspension rod and the steel structure cross beam through the elastic universal assembly. The overall damping performance of the building can be effectively improved, and the safety of the overall structure of the building is better ensured.

The utility model discloses a steel beam butt welding device which comprises tool frames arranged on the two sides at intervals, and a connecting plate is fixedly connected between the bottoms of the tool frames. A plurality of pushing rollers are rotationally connected to the connecting plate; clamping wheel assemblies for clamping a steel beam are assembled and connected to the tool frame, each clamping wheel assembly comprises a plurality of clamping wheels assembled on the tool frame in a sliding mode, and sliding rods connected to the tool frame in a sliding mode are fixedly connected to the clamping wheels; the clamping wheel assembly further comprises a driving arm fixedly connected to the sliding rod, and the two ends of the driving arm are each provided with a pushing air cylinder. In the welding and pushing process of the steel beam, the clamping wheel assemblies are clamped on the two sides of the steel beam, and the pushing accuracy is kept. According to the device, in the steel material welding process, a steel beam is accurately pushed and aligned to a welded steel frame in a labor-saving and easy-to-adjust mode, and in this way, the welding difficulty is reduced while the welding efficiency is improved.

The utility model provides an automatic telescopic greenhouse shed which comprises a shed frame and a thin film, the thin film is located outside the whole shed frame, the shed frame comprises a barrel-shaped steel frame set, a steel frame shed rod and an anti-falling rail, and a lateral film rolling set is arranged on the barrel-shaped steel frame set; the steel frame shed rods are located on the upper portion of the barrel-shaped steel frame set, and a top film rolling set is arranged on the multiple steel frame shed rods. The anti-falling rail is fixed to the top of the barrel-shaped steel frame set and used for guiding the steel frame shed rods to slide and stretch out and draw back; a telescopic matching group is arranged among the plurality of steel frame shed rods, and the steel frame shed rod at one end is fixed on the anti-falling track; the greenhouse has the advantages that the internal temperature can be changed by changing the structural change of the greenhouse body, the greenhouse can be applied to more greenhouse use scenes with different temperature control requirements, the use of a temperature control device is reduced, and the temperature control efficiency is improved. And the method has extremely high economical efficiency.

The invention discloses a welding device of an inserting plate type steel support for a highway cast-in-place beam, and particularly relates to the technical field of positioning welding, the welding device comprises a dislocation synchronous positioning mechanism, the dislocation synchronous positioning mechanism comprises a groove pressing plate, a pressure sensor, a loop bar and a connecting strip, the groove pressing plate is fixedly connected to the bottom end of the pressure sensor, and the loop bar is connected with the groove pressing plate; the inclined face of one side of the inner wall of the groove pressing plate is slidably connected with a sleeve rod, and one end of the sleeve rod is fixedly connected with a connecting strip. Through the dislocation synchronous positioning mechanism, transverse and longitudinal dislocation synchronous positioning and fixing welding can be rapidly achieved even if the positioning and welding positions of the inclined steel frame, the vertical steel frame and the bent steel frame are staggered and complex, the positioning and fixing welding efficiency is higher, and the welding stability is better; therefore, the problems that the positioning, fixing and welding efficiency of the steel supports in different directions is low, and the positioning and welding firmness is poor are solved.

The utility model provides a split mounting type ALC partition wall board which comprises a bearing board, the bearing board comprises a three-dimensional steel bar net rack and a concrete layer covering the three-dimensional steel bar net rack, a plurality of first strip-shaped grooves and first strip-shaped protrusions which are arranged in parallel at intervals are arranged on the two sides of the bearing board, and a plurality of second threaded sleeves are arranged on the two sides of the bearing board; the bearing plate is used as a main body structure, the three-dimensional steel frame net rack is embedded into the bearing plate, and the bearing plate can bear the load; during manufacturing, the threaded sleeve structure is embedded, and the threaded sleeve structure is connected with a steel bar net rack and can be used for being fixedly connected with an adjacent structure.

The invention relates to the application of the Internet of Things technology in the technical field of shield tunnel design, and discloses a shield tunnel segment circular seam full-scale loading test device and method based on the Internet of Things, and the device comprises a steel frame supporting assembly which is used for providing a supporting frame of the whole test device. Comprising a supporting bottom beam, stand columns, a counter-force top beam, a counter-force bottom beam, a cross beam and a tensile diagonal rod, the stand columns are located on the supporting bottom beam, the counter-force top beam is arranged between the stand columns, the counter-force bottom beam is a box-shaped beam and is provided with a plurality of holes along the axis, and rotating shafts and brake bolt pins are arranged in the holes. Through the synergistic effect of the positioning steel tank, the positioning jack, the angle sensor and other components, accurate horizontal positioning and bilateral symmetry adjustment of the test duct piece can be achieved, in the test process, the strip-shaped hole design of the positioning steel tank allows the transverse rib of the inverted-T-shaped steel beam to slide left and right along the strip-shaped hole, and the fine adjustment function of the positioning jack is matched; and the duct piece can be ensured to be positioned at an accurate horizontal position and be bilaterally symmetrical before being loaded.

The utility model relates to a compression mechanism of a grass material square bundle bundling machine, and belongs to the technical field of agricultural machinery. The compression mechanism comprises two cranks, a crank shaft, a crank shaft end cover and a bracket bearing seat, the connecting rod comprises a plurality of U-shaped channel steel frames, a front end plate, a reinforcing plate and a rear end plate; the small piston comprises two side push blocks, a plurality of middle push blocks, an upper cross beam, a lower cross beam, a connecting rod fixing sleeve and a connecting rod connecting plate; the large piston comprises two side pushing blocks, a plurality of upper middle pushing blocks, a plurality of lower middle pushing blocks, an upper cross beam and a lower cross beam; the piston combination and separation mechanism comprises a rotary cam shaft, a locking vertical plate, a locking vertical plate seat, an upper locking slide way seat, a locking support, a lower locking slide way seat and a tension spring. The piston combination and separation mechanism can achieve combination and separation of the large piston and the small piston, the mass of the pistons is decomposed, inertial impact and vibration during piston movement are reduced, and power consumption of the compression mechanism in the grass material compression process is effectively reduced.

The invention discloses a composite toggle type displacement amplification damping device of a self-resetting damper and an assembly method, and belongs to the technical field of structural engineering and structural earthquake resistance, the device comprises a steel frame structure, the self-resetting damper installed on the steel frame structure, a toggle type supporting rod piece and a right-angle curved bar; one end of the self-resetting damper is hinged to the steel frame structure, the other end of the self-resetting damper is hinged to a right-angle curved bar, the end of the first supporting piece and the end of the second supporting piece are hinged to the steel frame structure, and the end of the third supporting piece is hinged to the right-angle curved bar which is hinged to the steel frame structure. A movable triangular plane is formed among the second supporting piece, the third supporting piece, the right-angle curved bar and the self-resetting damper, and a plane formed by connecting lines between hinge points on the right-angle curved bar is a right triangle. The damper can solve the problems of low damping efficiency and large post-earthquake residual deformation caused by insufficient relative deformation of the two ends of an existing damper and incapability of fully dissipating earthquake energy.

The invention relates to a sleeper lateral resistance testing device considering the service state change of a ballast track. The sleeper lateral resistance testing device comprises a suspension assembly, a loading assembly and a measuring assembly, the suspension assembly comprises a suspension steel frame cross beam, a suspension steel frame side beam and a supporting cross beam; the suspension steel frame cross beam is installed on a steel rail, the supporting cross beam is installed on a sleeper, the suspension steel frame side beam is installed on a sliding rail of the supporting cross beam, and the side face of the suspension steel frame side beam is connected with the suspension steel frame cross beam; a side beam lower pressure sensor is mounted below the sliding rail; the loading assembly comprises two jacks which are arranged at symmetrical positions relative to a sleeper, and the jacks are arranged on a steel rail; the measuring assembly comprises a laser displacement sensor, a jack pressure sensor, a pressure data acquisition instrument, a displacement data acquisition instrument and a notebook computer; and continuous measurement of transverse resistance and displacement is realized. Compared with the prior art, the real service state can be kept; displacement can be accurately controlled; disturbance is reduced, and data reliability is high.

Disclosed in the present invention is an intelligent high-pressure-resistant high-density underwater data center, comprising a foundation building, a controllable water tank mounted on one side of the foundation building, an overhead steel frame fixed to the bottom end of the controllable water tank, and a data center array fixed to an upper end surface of the overhead steel frame, wherein the data center array is formed by combining a plurality of data centers, each data center comprising a pressure-resistant chamber; horizontal bases are mounted on a lower end surface of the pressure-resistant chamber; a hinge is mounted at one end of the pressure-resistant chamber; a sealing chamber door is mounted at a rotating end of the hinge; and a chamber door bolt in threaded engagement with the pressure-resistant chamber penetrates an outer side of a surface of the sealing chamber door. In the present invention, the data center can resist high water pressure in natural deep water; moreover, a server cabinet system can be mounted inside the data center at high density, and the distance between server cabinet modules can be automatically adjusted by means of electric servo on the basis of requirements; and the interior of the data center is a fully nitrogen-filled oxygen-free sealed environment with constant and low humidity and no oxygen, thereby ensuring that a device in the data center has no possibility of oxidation and fire.

The invention relates to the technical field of pumped storage power stations, in particular to a pumped storage power station tunnel construction surrounding rock deformation safety control method which comprises the steps that firstly, a half side with the relatively low tendency is excavated, and an inclined rock stratum of the half side with the relatively high tendency is made to conduct creep displacement towards an excavated tunnel area; and then the half side with the relatively high tendency is constructed, so that the creep quantity of the half side in the later period can be reduced. The construction position of the half-side tunnel with the relatively high inclination is larger than the expected position of the tunnel, the excavated rock stratum is supported through the pipe shed pipe before excavation, and the inclined rock stratum can be prevented from sliding towards the excavated tunnel area under the action of the gravity of the inclined rock stratum through the supporting effect of the steel arch frame and the bottom plate steel frame in cooperation with the supporting effect of the steel arch frame and the bottom plate steel frame. According to the half-side tunnel with the relatively high inclination, the space between the steel arch and the second-layer steel arch is filled with broken stones to form a broken stone filling layer serving as a buffering layer of inclined rock layer creep deformation, and the influence of the creep deformation on the inner-layer steel arch is reduced. The method is particularly suitable for the conditions that the tunnel section is small and the deformation of the inclined rock stratum is relatively large under the influence of bias pressure, construction is easy, and popularization is facilitated.

The invention relates to the technical field of data processing, and discloses a shipyard steel framed bent scheme automatic optimization method and system based on a genetic algorithm. The method comprises the following steps: acquiring shipyard steel bent frame structure parameters and establishing an engineering experience database to obtain initial component section parameters; carrying out structure parametric modeling based on the initial parameters, generating a structure calculation model and carrying out load condition analysis; importing finite element software to carry out internal force analysis, and carrying out component standard checking calculation to obtain a stress ratio; performing multi-objective optimization through an NSGA-II algorithm to obtain a Pareto optimal solution set; and finally carrying out three-dimensional modeling and document generation to obtain an optimization design result. According to the method, the design scheme of the steel bent frame structure is automatically optimized while multiple load working conditions and design targets are considered, and it is ensured that the design result meeting the safety standard and with the optimal cost is obtained within the shortest time. By solving the problem, the design efficiency can be greatly improved, the design cost is reduced, and the structural safety is ensured.

The utility model belongs to the technical field of mechanical dispatching and packaging, and provides a vehicle wheel set dispatching and packaging device which comprises upper supporting frames and a base, the upper supporting frames and the base are of a steel frame structure, the base is used for supporting a first-layer wheel set, and the two sets of upper supporting frames are arranged between the first-layer wheel set and a second-layer wheel set; the support is used for fixing the first-layer wheel pair and supporting the second-layer wheel pair in cooperation with the base; according to the packaging device, an integral steel structure mode is adopted, the packaging mode that an existing long-distance shipping vehicle wheel pair adopts a sole timber and angle steel combined packaging mode is replaced, the packaging production cost and the wheel pair transportation cost are reduced, the problem that the sole timber is prone to corrosion and decay is solved, and the safety and reliability of long-distance shipping vehicle wheel pair packaging are improved; and meanwhile, the number of single packaging loading wheel pairs of the packaging device is increased to six, and the packaging use efficiency is also improved.

The invention discloses a corrugated steel plate improved assembly type steel frame combination joint which comprises square steel pipes, a steel frame and a corrugated steel plate. The two groups of H-shaped steel beams are arranged, the adjacent H-shaped steel beams are detachably connected through connecting mechanism components, corrugated steel plates connected with the H-shaped steel beams through SMA bolts are arranged in the middles of the beam ends of the H-shaped steel beams located at the ends, corrugated steel plates connected with the H-shaped steel beams through welding are arranged on the two sides of the H-shaped steel beams through welding, and the corrugated steel plates and the side walls of the square steel tubes are fixed through welding; the side walls of the square steel pipes are located on the upper and lower sides of the end beams and are connected with gusset plates on the joint parts of the H-shaped steel beams through rotating assemblies connected with SMA rods; and when the SMA rod and the corrugated steel plate are damaged, a new force transmission path can be formed in a node area to prevent progressive collapse while the functions of shock absorption, energy consumption and self-resetting are achieved. Reinforcing pieces are arranged at the beam ends and comprise corrugated steel plates, and the corrugated steel plates are arranged at the connecting joints of the two H-shaped steel beams.

The invention belongs to the technical field of mechanical parking, and particularly relates to a rear cantilever type two-wheeled electric garage lifting device which comprises a steel frame structure, a lifting driving assembly, at least one upper-layer vehicle carrying plate, a lower-layer vehicle carrying plate, a drag chain, a fence and a walking track. Wherein the steel frame structure comprises a top cross beam and a pair of channel steel rails which are arranged on the rear side of the equipment in the vertical direction and are mounted face to face, and a closed lifting guide channel is formed; the inner wall face of the channel steel rail is a rolling contact face of the lifting walking wheel, and an opening of the channel steel rail faces forwards, so that the vehicle carrying plate is only restrained and guided by the rear side rail in the lifting process, the front area is completely opened, and a user can conveniently push in or push out the two-wheel electric vehicle. The structure that a single lifting point is matched with four lifting traveling wheels ensures that the vehicle carrying plate is kept in a horizontal posture in the whole lifting process, and the phenomena of inclination, shaking or clamping stagnation are avoided; the steel wire rope tensioning assembly automatically adjusts tension, loosening slipping or too tight breakage is avoided, and long-term reliable operation is guaranteed.

The invention provides a large-diameter shield tunnel anti-floating method and system based on an anti-floating coefficient, and belongs to the technical field of tunnel anti-floating. The method comprises the steps that static and dynamic multi-dimensional anti-floating parameters are obtained, anti-floating coefficients are calculated after preprocessing, an early warning value is set according to the anti-floating coefficients, an anti-floating pile arrangement scheme is selected, and pile arrangement design is optimized through a genetic algorithm; a stratum is reinforced through partition differential grouting, parameters of a steel frame and a pre-stressed anchor cable are optimized by combining a genetic algorithm aiming at a gate-type structure, and a collaborative anti-floating reinforcing system is constructed; and real-time anti-floating monitoring is carried out, a tunnel anti-floating digital twin mirror image is established based on data, state prediction and system dynamic optimization are carried out, and a final reinforcement result is output. According to the method, the problem that in a traditional method, the stratum resistance static value is not matched with actual construction disturbance is effectively solved, and the accuracy and engineering applicability of anti-floating design are remarkably improved.

The invention relates to a sectional type positioning installation method and system for a steel structure frame, and relates to the technical field of building structure construction. The method comprises the steps that three-dimensional coordinate measurement is conducted on the embedded bolt through a total station, a deviation value recording table is obtained, and a control network and a marking system are established; the method comprises the following steps: performing ultrasonic flaw detection and pre-tension reinspection on a steel structural member, performing ground pre-assembly to obtain a single-section steel frame model, and performing optimization treatment to form a number marking system and an assembly sequence diagram; a steel structure is divided into a plurality of independent installation units, and preliminary positioning is achieved through a temporary fixing technology; secondary measurement is carried out, fine adjustment is carried out through an ejector and a wire drawing device, accumulated deviation is dispersed through an overall balance method, and the pre-camber is set to obtain a stable frame system; the high-strength bolts are finally tightened, and welding construction is conducted; the roof system is installed in a batched concentrated hoisting mode. The problem that accumulated errors are difficult to control in traditional steel structure installation is solved, and the installation precision and efficiency are improved.

The invention discloses a high-performance sealed viscous damping wall. The high-performance sealed viscous damping wall comprises a viscous damper, the steel frames are symmetrically arranged at the two ends of the viscous damper, and the outer side of each steel frame is fixedly connected with a lug plate; the embedded part is arranged on the wall body, a setting hole is formed in the lug plate, and the inner wall of the top hole is connected with the outer wall of the embedded part in a sliding mode and is fixed to the embedded part through a fixing cap in a threaded mode; the gapless spherical hinges are arranged at the joints of the two ends of the viscous damper and the steel frame, and hinge joint of the viscous damper and the steel frame is achieved; the invention belongs to the technical field of civil engineering structure damping walls, and achieves the technical effects that vibration mechanical energy is efficiently converted into heat energy to be dissipated through nonlinear damping force generated when damping liquid in the viscous damper flows through a piston throttling hole, the acceleration and displacement response of the structure are greatly reduced, and the damping effect is good. And the hot zinc spraying and paint anti-corrosion layer ensures long-acting service in a severe environment.

The invention discloses a hoisting module, a hoisting system and a construction method for crossing-intersection cast-in-place beam construction, the hoisting module comprises a reverse hoisting steel frame, a bottom platform, a plurality of reverse jacking devices and a plurality of hoisting rods, and the reverse hoisting steel frame is supported by two segmental beams; a plurality of first lifting holes are distributed in the reverse lifting steel frame; second lifting holes are formed in the positions, corresponding to the first lifting holes, of the bottom platform. The upper end of each hanging rod penetrates through one first hanging hole, the lower end of each hanging rod penetrates through one second hanging hole, and the upper end and the lower end of each hanging rod are in threaded connection with locking nuts respectively. A reverse jacking device is arranged between each segmental beam and the bottom platform; each reverse jacking device comprises a lower jacking block, an adjusting nut, a lifting screw and an upper jacking plate, and the upper jacking plates and the lower jacking blocks apply pressure to the segmental beams and the bottom platform correspondingly. Through a double stress balance structure of reverse hoisting of the reverse hoisting steel frame and reverse jacking of the reverse jacking device, the construction safety is greatly improved.

The invention relates to a shape memory alloy plate buckling restrained brace with friction energy dissipation and a using method. The buckling restrained brace comprises a core plate, stiffening plates arranged at the two ends of the core plate, buckling restrained cover plates arranged on the upper side and the lower side of the core plate, angle steel used for connecting the stiffening plates and the buckling restrained cover plates, and filling plates arranged between the core plate and the buckling restrained cover plates. The core plate is an iron-based shape memory alloy plate and can recover deformation caused by earthquake load under local heating; long slotted holes are formed in the stiffening plates, the buckling constraint cover plates and the angle steel, the stiffening plates and the angle steel are connected through bolt assemblies, the buckling constraint cover plates and the angle steel are connected through bolt assemblies, the filling plates and the buckling constraint cover plates on the two sides are connected through bolt assemblies, and energy is consumed between the bolt assemblies and the long slotted holes through friction. Compared with the prior art, the buckling restrained brace can be used as a lateral force resistance and energy consumption component of a steel frame structure, and has the advantages of being easy to reset, high in energy consumption, easy to assemble and disassemble and the like.