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633 results about "Assembly (construction)" patented technology

Intelligent diagnosis and early warning method for potential safety hazards of construction quality of ship final assembly

The invention relates to the technical field of ship construction, and discloses an intelligent diagnosis and early warning method for ship final assembly construction quality potential safety hazards. The method comprises the following steps: receiving real-time sensing data of a plurality of detection nodes in ship construction, and analyzing the real-time sensing data through a pre-trained quality feature extraction model to generate a hidden danger feature vector and a risk level; and dynamically generating a hidden danger diagnosis strategy according to the sequence, wherein the hidden danger diagnosis strategy comprises a detection equipment scheduling instruction and a defect repair priority sequence. And utilizing the pre-trained hidden danger ship dynamic model to predict a defect diffusion trend, adjusting a dynamic response threshold value, optimizing, updating and repairing a priority sequence through an adaptive genetic algorithm, and outputting a quality early warning instruction to a ship construction management system. The method can accurately diagnose and early warn potential quality safety hazards, reasonably dispatch resources, improve the ship construction quality and safety, reduce the cost, and promote the intelligent development of the ship construction industry.
Owner:SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD +1

Auxiliary supporting mechanism for assembling internal parts of Tokamak and assembling method

According to the auxiliary supporting mechanism for assembling the internal parts of the Tokamak and the assembling method, all auxiliary stand columns and a center stand column are installed at the same center distance, and the center stand column is provided with an upper-layer disc-type turn buckle supporting mechanism and a lower-layer disc-type turn buckle supporting mechanism so as to be connected with the outer surface of a vertical section of a vacuum chamber ring petal; the outer side supporting mechanism is connected around the outer surface of the vacuum chamber ring valve set, the double-column type bottom supporting table is located below the vacuum chamber ring valve set, and the vacuum chamber ring valve set is supported from the outer side and the lower portion of the vacuum chamber ring valve set; a stand column connecting rod is connected between every two adjacent auxiliary stand columns, and a limiting mechanism capable of extending into a window in a vacuum chamber ring petal is installed on each stand column connecting rod. The U-shaped operation platform penetrates through the vacuum chamber ring petal set, and a plurality of small internal part assembling auxiliary tools are movably installed on the surface of the U-shaped operation platform. The method is wide in application range, can effectively solve the problems that transportation channels of internal parts are few and the assembly construction space is limited, and reduces the construction difficulty and the construction cost.
Owner:FUSION ENERGY (HEFEI) ENGINEERING DESIGN INSTITUTE CO LTD

Assembly type reinforced concrete-steel structure foundation pit supporting system convenient to disassemble and construction technology

The invention relates to the field of constructional engineering, and discloses an assembly type reinforced concrete-steel structure foundation pit supporting system convenient to disassemble and a construction technology, and the assembly type reinforced concrete-steel structure foundation pit supporting system comprises a top beam, a waist beam, a supporting pile and an inner supporting system; the inner supporting system is formed by assembling a standard steel-concrete beam section main support and a steel member auxiliary support in cooperation with a jack adjusting system. The invention further provides a new system on-site assembly construction process, namely detailed steps of assembly construction from the uppermost layer to the lower layer step by step. The fabricated structure integrates the advantages of two fabricated structures, is suitable for foundation pit supporting with large stress and strict deformation control, and has the advantages of being high in construction speed, short in construction period, low in construction cost, convenient to dismantle and capable of completely recycling most of inner supporting components compared with a traditional cast-in-place steel-concrete foundation pit supporting system.
Owner:THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD +2

Large-space steel truss assembly construction precision control method based on real-time monitoring technology

The invention relates to the technical field of steel truss assembly precision control, and discloses a large-space steel truss assembly construction precision control method based on a real-time monitoring technology. According to the method, through a sensing technology and a data processing system, steel truss supporting node coordinates, strain force and material temperature data are collected in real time and transmitted to a data processing center through a wireless network to be subjected to low-pass filtering and stress and thermal expansion calculation, and therefore it is ensured that the material state meets the assembling standard; error calculation and precision evaluation in the process not only can timely discover and correct deviation, but also can feed back to the assembling and adjusting equipment through intelligent signals to realize automatic precision control, and compared with traditional manual measurement, the method has the advantages that the influence of environmental factors on measurement accuracy is greatly reduced, the limitation of static measurement is overcome, and the measurement accuracy is improved. And real-time monitoring and correction capabilities are provided, so that structural deformation and safety risks are reduced, and the overall construction quality and safety of the steel truss are ensured.
Owner:CHINA RAILWAY 22ND BUREAU GRP RAIL ENG CO LTD +2

Splicing construction method for three-layer overlapping assembly type station

The invention relates to the technical field of station construction, in particular to a three-layer overlapping assembly type station assembling construction method, and an overlapping assembly type station comprises a bottom plate, prefabricated side walls, cast-in-place side walls, middle stand columns, middle longitudinal beams, middle plates, top longitudinal beams, a prefabricated top plate and a cast-in-place top plate. The construction method specifically comprises the steps that concrete is poured in situ to form the bottom plate, then the prefabricated side walls are assembled, the cast-in-place side walls are poured, then the middle stand columns and the middle longitudinal beams are assembled, connecting joint concrete is poured, the middle plate is erected, the concrete is symmetrically poured at the two ends of the middle plate for forming, and single-layer construction is completed. When the station is constructed to the top sealing of the uppermost layer, the middle plate serves as the foundation, the cast-in-place side walls, the prefabricated side walls, the middle stand columns and the top longitudinal beams are spliced and poured in sequence, the prefabricated top plate is erected, and the cast-in-place top plate is poured to complete top sealing; the method is easy to control, the accuracy of structure construction is guaranteed, the construction period is short, the construction quality is stable and reliable, and the construction efficiency can be obviously improved.
Owner:CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD

Assembly construction method of wind power assembly type reinforced concrete tower drum

The invention discloses a wind power assembly type reinforced concrete tower tube assembly construction method, an assembly type reinforced concrete tower tube comprises a concrete tower splicing ring piece, a concrete tower full-circle ring piece and a steel tower conversion section, and the tower tube comprises the spliced ring piece, the full-circle ring piece and the steel tower conversion section from bottom to top; the construction method comprises the process of assembling the fabricated reinforced concrete tower drum through concrete tower piece splicing construction, concrete tower drum and steel tower conversion section hoisting construction and concrete tower drum prestress construction. According to the construction method, assembly and assembly of the concrete tower drum are completed through crawler crane line production, the fan foundation, the concrete tower drum and the steel conversion section are connected through concrete tower drum outer cable unbonded prestress construction, and the construction period is remarkably shortened. In addition, by optimizing the construction process, rapid installation of the prefabricated shell ring is achieved, the construction progress is accelerated, and meanwhile the construction cost is reduced.
Owner:CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD

Separating and using type high-altitude corridor system construction platform and construction method thereof

The invention discloses a separating and rotating type high-altitude corridor system construction platform and a construction method thereof. The platform comprises a first-stage mounting hole, a second-stage mounting hole, an additional supporting beam and a second-stage supporting beam. The supporting assembly comprises a panel, beam side and plate bottom support and a safety protection assembly. A detachable middle supporting assembly and a temporary support with the adjustable length are adopted, after corridor structure construction is completed, hoisting equipment is used for completing construction, a double-beam assembly composed of a transverse main beam and a longitudinal secondary beam is downwards hoisted to a second-stage mounting hole and a second-stage supporting beam, secondary reconstruction is conducted, and a corridor decoration platform is applied. Pressure relief is achieved by controlling and lowering the temporary support, and the separation difficulty of the middle supporting assembly is greatly reduced. In addition, according to the method, the combination process of the transverse main beams and the longitudinal secondary beams or small beams is completed on the ground, and safe, modularized and efficient splicing construction is achieved.
Owner:CHINA FIRST METALLURGICAL GROUP

Construction frame for building construction

The utility model discloses a scaffold for building construction, and relates to the technical field of scaffolds. The device comprises two groups of supporting columns in one-to-one correspondence and a pedal plate, the bottom end of the pedal plate is in elastic sliding fit with two limiting pins, a plurality of supporting limiting cylinders are arrayed on one side of each supporting column in the height direction, limiting grooves corresponding to the limiting pins are formed in the inner walls of the supporting limiting cylinders, and a telescopic rod is arranged between the two supporting columns in one-to-one correspondence. By arranging the telescopic rods, the distance between the two supporting columns in one-to-one correspondence can be conveniently and rapidly adjusted, then the inserting strips at the bottom ends of the pedal plates are inserted into the supporting limiting barrels on the side portions of the supporting columns, the L-shaped limiting strips are elastically clamped into the limiting grooves through the springs, the scaffold can be conveniently and rapidly assembled, and the assembling efficiency of the scaffold can be conveniently improved.
Owner:李二刚

Machining method for steel cylinders with different plate thicknesses

ActiveCN119115443ASolving Manufacturing ChallengesReduce construction difficultyPipe fittingClassical mechanics
The invention discloses a method for machining steel cylinders with different plate thicknesses. The method comprises the steps that S1, parts are blanked and machined, specifically, the parts are cut through gas cutting or plasma cutting, and random spot check is conducted on site when the parts are blanked every time; s2, a cylinder pipe rolling and circle returning process which comprises the steps that S21, preparation work before cylinder rolling is conducted; step S22, rolling a cylinder; step S23, welding a longitudinal seam of the cylinder; step S24, secondary roundness correction of the cylinder; and S3, cylindrical pipe fitting assembly, specifically, S31, cylindrical pipe fitting assembly front requirements are met; step S32, carrying out a cylinder assembly construction process; s33, carrying out nondestructive testing on the cylinder welding seam; step S34, cylinder precision control; step S35, measuring the size of the cylinder; and S4, the cylinders are subjected to mark spraying treatment, and the cylinders are warehoused after being subjected to user inspection or final inspection. The manufacturing problem of large-diameter steel cylinders with different thicknesses is solved; the construction difficulty is reduced, and the manufacturing efficiency is improved.
Owner:GUANGZHOU WENCHUAN HEAVY IND

Integral lifting disassembly and assembly construction process for cantilever bent cap support

The invention discloses an integral lifting disassembly and assembly construction process for a cantilever bent cap support. The integral lifting disassembly and assembly construction process comprises the steps that S1, a comprehensive lifting device is hoisted to the top of a bridge pier column to be installed and fixed; s2, a cantilever bent cap support is assembled on the ground; s3, the cantilever cover beam support is integrally lifted to a preset position, the cantilever cover beam support is installed and fixed, and the comprehensive lifting device is dismantled; s4, the cantilever bent cap is poured through the cantilever bent cap support; s5, the comprehensive lifting device is hoisted to the top of the cantilever cover beam to be installed and fixed; and S6, the whole cantilever bent cap support is lowered to the ground, the cantilever bent cap support is disassembled, and the cantilever bent cap support is disassembled on the ground. According to the construction method, the cantilever bent cap support is assembled on the ground, and then overall lifting is conducted through the comprehensive lifting device, so that the high-altitude operation time can be effectively shortened, the high-altitude falling risk of workers is reduced, and the psychological pressure on constructors is reduced; and after construction of the bent cap body is completed, the whole bent cap body is put down for construction of the next work point, and the turnover efficiency is improved.
Owner:POLY CHANGDA ENGINEERING CO LTD

Straight web steel-concrete composite beam connecting structure and construction method thereof

The invention relates to a straight web steel-concrete composite beam connecting structure and a construction method thereof, and belongs to the technical field of bridge engineering.The straight web steel-concrete composite beam connecting structure comprises a prefabricated bridge deck slab, a steel beam and a locking connecting assembly used for penetrating, locking and connecting the prefabricated bridge deck slab and the steel beam, and the locking connecting assembly comprises a connecting sleeve rod, a pressing rod, a pressing spring, a wedge-shaped block and a locking ball; a threaded hole for threaded connection of the connecting sleeve rod is formed in the steel beam, a connecting hole for insertion of the connecting sleeve rod is formed in the prefabricated bridge deck slab, the pressing rod is coaxially arranged in the connecting sleeve rod, the pressing spring is arranged on the pressing rod in a sleeving mode, and the wedge block is arranged at one end of the pressing rod. The locking ball is located between the pressing rod and the connecting sleeve rod and located between the pressing rod and the wedge-shaped block, the wedge-shaped block is provided with a wedge-shaped face, the wedge-shaped face abuts against the locking ball, and a locking hole for the locking ball to stretch out is formed in the connecting sleeve rod. The locking device has the advantages that locking connection operation is simple and convenient, the locking effect is good, the locking device is suitable for assembly construction, and meanwhile, disassembly and maintenance of the local prefabricated bridge deck slab are facilitated.
Owner:JIANGSU HENGJE ROAD & BRIDGE ENG CO LTD

Temporary supporting system for splicing construction of wind power concrete tower drum

The invention relates to the technical field of wind power concrete tower drum assembly construction, in particular to a wind power concrete tower drum assembly construction temporary supporting system which comprises a supporting rod, two telescopic assemblies are arranged in the supporting rod, and a clamping rod is slidably connected into the telescopic assembly located at the lower end. A mounting rod is slidably connected into the telescopic assembly located at the lower end, a positioning plate is fixedly connected to the mounting rod, a guide slope block is fixedly connected to the upper end of the positioning plate, a slow descending slope block is fixedly mounted at the lower end of the positioning plate, a rotating sleeve is rotatably connected to the upper end of the supporting rod, and a ball assembly is arranged in the rotating sleeve. Rapid alignment and stable attachment of the tower drum are achieved through the telescopic assembly, the rotating sleeve and the like. The process is simplified through mechanical driving, the labor intensity is reduced, and the construction efficiency is improved; supporting is stable, buffering and falling prevention are achieved, and construction safety is guaranteed; the modular design is suitable for tower barrels of various specifications, repeated use can be achieved, and the construction cost is greatly reduced.
Owner:CHINA ENERGY ENG GRP TIANJIN ELECTRIC POWER CONSTR CO LTD

Steel structure cooling tower composed of double-layer trilateral and quadrilateral units

The utility model discloses a steel structure cooling tower consisting of double-layer trilateral and quadrilateral units. The cooling tower consists of an upper part and a lower part, the lower part is formed by connecting and combining double-layer trilateral units according to a certain rule, and each double-layer trilateral unit is a double-layer reticulated shell formed by connecting a trilateral outer side chord member and a trilateral inner side chord member through a series of web members; the upper part is formed by connecting and combining double-layer quadrilateral units according to a certain rule, and each double-layer quadrilateral unit is a double-layer reticulated shell formed by connecting a quadrilateral outer side chord member and a quadrilateral inner side chord member through a series of web members. According to the double-layer steel structure cooling tower, the internal force conduction path of the double-layer steel structure cooling tower under the action of lateral force is optimized, the space stress performance is good, the stability of the structure is guaranteed, and the overall steel consumption is further reduced. Through connection and assembly of modular unit assemblies, standardized design, industrial production and fabricated construction of the cooling tower structure are achieved.
Owner:广州容柏生建筑工程设计咨询有限公司

Siphon type roof drain matched with single-layer flexible roof

The utility model discloses a siphon type roof drain matched with a single-layer flexible roof, which comprises a water collecting hopper, a waterproof coiled material, a fixing ring and a shunting grating cover, the top end of the water collecting hopper radially extends to form a fixed supporting structure, the waterproof coiled material is arranged on the upper side of the fixed supporting structure, and the waterproof coiled material extends out of the fixed supporting structure. A through hole is formed in the position, corresponding to an upper end opening of the water collecting hopper, of the waterproof roll, the fixing ring penetrates through the through hole to be fixedly connected with the water collecting hopper, the fixing ring limits the waterproof roll on the side, away from the fixed supporting structure, of the waterproof roll, an anti-vortex structure is arranged in the fixing ring, and the flow dividing grating covers the fixing ring. The roof drain is better in waterproof performance, and the quality is guaranteed; on-site materials are few, and installation is easy; by the adoption of the assembly type construction technology, the site operation difficulty is lowered, the procedure steps are reduced, the construction efficiency is improved, and the construction quality is guaranteed; installation and maintenance are easy; siphon is generated at the lower water level in front of the bucket, and the load rising hidden danger caused by roof accumulated water can be reduced.
Owner:JUAL ROOFING TECHNOLOGY (SUZHOU) CO LTD

Reinforced concrete precast pile lock pin type connecting device convenient for prefabricated construction

The lock pin type connecting device for the reinforced concrete precast pile is convenient for assembly construction. Which comprises a lower base (1), a socket column (2), a socket hole (3), an upper base (4), a threaded anchoring rib (5), a threaded hole (6), a bolt hole (7), a bolt rod (8) and a segmental precast pile (9), and is characterized in that: (1) the disturbance of the traditional cast-in-situ bored pile foundation on the environment and the stratum is overcome, and the ecological environment of a special region is favorably protected; and (2) the pile foundation sections and the connecting devices thereof are all prefabricated in a factory in a standardized manner, so that the construction efficiency of the pile foundation is effectively improved, and the flow of field assembly construction is simplified. The connecting device is simple in structure and convenient to operate, the number of the high-strength connecting pieces and the number of the reserved inserting holes can be adjusted according to actual engineering requirements, and construction flexibility is improved.
Owner:LANZHOU JIAOTONG UNIV

Large-span steel structure corridor sliding assembly construction technology

The invention relates to a large-span steel structure corridor sliding assembly construction process, and aims to solve the problems of high difficulty, low efficiency, difficulty in dismounting an auxiliary structure and the like in large-span steel structure corridor construction by a traditional hoisting method. According to the process, mounting of a longitudinal triangular truss, a middle shaft small truss and an outrigger is completed by assembling a door-type steel truss column truss on the ground or a roof, mounting a sliding rail and assembling a truss beam and the door-type steel truss. And the assembled door-type steel truss combination slides, the steps are repeated on the two sides, and finally the two-large-area steel structure corridor formed by assembling seven door-type steel trusses is formed. According to the process, the Z-shaped sliding rails and the detachable rollers are adopted, so that all mounting auxiliary parts can be independently separated from the truss structure after the structure is mounted, the construction efficiency is improved, the cost is reduced, and the aesthetic property and the functionality of the structure are ensured. The technology is suitable for rapid and efficient construction of the large-span steel structure corridor and has remarkable economic benefits and social benefits.
Owner:CHINA CONSTR THIRD ENG BUREAU GRP SOUTH CHINA CO LTD +1

Connecting structure of existing structure externally attached prefabricated frame and assembling construction method

The invention relates to a connecting structure of an external prefabricated frame of an existing structure and an assembling construction method.The connecting structure comprises the external prefabricated frame used for reinforcing the existing structure and an annular steel sheet, the existing structure comprises an existing component, and the existing component is provided with a disc groove and a non-penetrating steel bar planting hole channel I; the externally-attached prefabricated frame is formed by a plurality of externally-attached prefabricated parts in a staggered mode, penetrating steel bar planting hole channels II are formed in the positions, corresponding to the steel bar planting hole channels I, of the externally-attached prefabricated parts, the annular steel sheets are matched with the disc grooves, one faces of the annular steel sheets are fixedly embedded in the disc grooves of the existing parts, and the other faces of the annular steel sheets are tightly attached to the inner side surfaces of the externally-attached prefabricated parts. And through combined use of the annular steel sheets and the bolt pin steel bars, the shear bearing capacity of the connecting interface of the existing component and the externally-attached prefabricated component is remarkably improved, the use amount of shear-resistant connecting joints is greatly reduced, the construction cost is further reduced, and the drilling workload is also greatly reduced.
Owner:CHONGQING UNIV

General assembly construction data service encapsulation and construction method based on cloud native technology

The invention relates to the technical field of ship manufacturing, and discloses a general assembly construction data service encapsulation and construction method based on a cloud native technology. The method comprises the following steps: dividing a ship final assembly construction data source into design, production, quality inspection, logistics and operation and maintenance data units, and determining a data type and an interface protocol; then, constructing an initial service model based on a micro-service architecture and a containerization technology; then, dynamic service packaging is carried out, and cross-model data routing and load balancing are achieved; dynamically allocating resources and scheduling tasks through a multi-target scheduling algorithm model; iteratively optimizing the service model by utilizing an incremental learning mechanism; and finally, realizing gray release and rolling update by continuously integrating and continuously delivering assembly line deployment to a cloud native platform. The ship general assembly construction data processing efficiency, the system performance and the service quality are improved, and the problems of disordered data management, low processing efficiency, unreasonable resource allocation and the like in a traditional mode are effectively solved.
Owner:SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD +1

Tool of structural supporting rod clamp

The utility model relates to the technical field of ship manufacturing, and discloses a tool of a structure supporting rod clamp, which comprises a supporting rod, a chuck and a connecting device, connecting devices are arranged at the two ends of the supporting rod respectively, and chucks are arranged at the other ends of the connecting devices. The chuck comprises a chuck main body, a movable part, a bolt, a bolt fixing plate and a spring; an assembly part mounting groove is formed in the main body; a connecting device is arranged on the outer side wall of one side of the chuck body, a movable part is arranged on the side wall of the other side of the chuck body and can move in the direction close to or away from the assembly part installation groove, the plug pin fixing plate is fixedly installed in the assembly part installation groove and forms a plug pin fixing groove with the chuck body, and the plug pin and the spring are arranged in the plug pin fixing groove. The spring can drive the plug pin to move in the direction close to the movable part to be locked with the movable part. The device solves the problems of tedious operation and poor adjustability when a section bar is used for fixing the assembly part in the assembly building process, and the tool is used for fixing the assembly part, so that the operation is simple, the convenience is good, and the reliability is high.
Owner:恒力造船(大连)有限公司

Top-down construction type assembly construction method for paved road surface

A top-down construction type assembly construction method for paved road surface, including the following steps: step I, manufacturing prefabricating slabs: using a top-down method to manufacture the prefabricating slabs, and providing bolt sleeves, inside the prefabricating slabs, which are evenly arranged in the prefabricating slabs; step II, mounting the prefabricating slabs: on a lower bearing plate, placing the prefabricating slabs in one step, performing a fine tuning on a position and an altitude of the prefabricating slabs, performing a grouting construction, finally forming the paved road surface; the prefabricating slabs are manufactured by laying bricks and pouring concrete, the prefabricating slabs are rolled over and mounted, thus eliminating on-site concrete bonding between bricks and the lower bearing plate, improving overall stability of the bricks and the prefabricating slabs after being mounted, assembled mounting for a paved road surface is implemented, and the construction period is shortened.
Owner:THE FIRST ENG CO LTD OF CTCE GRP +1

Dynamic energy consumption monitoring and energy-saving and carbon-reducing regulation and control method for final assembly construction production link

The invention provides an energy consumption dynamic monitoring and energy-saving and carbon-reducing regulation and control method for a final assembly construction production link. The method comprises the following steps: S1, acquiring energy consumption related data of each process in an industrial production cycle; s2, constructing an energy consumption prediction model which comprises a mechanical power energy consumption prediction model and a thermal process modification energy consumption prediction model; S3, inputting the data acquired in the step S1 into the energy consumption prediction model constructed in the step S2 to obtain related energy consumption prediction data; s4, converting the energy consumption prediction data into carbon emission, and calculating based on the carbon intensity coefficient of the energy type to obtain total carbon emission; and S5, inputting the total carbon emission into a multi-objective genetic algorithm to generate a Pareto optimal solution set, and obtaining an optimal combination of energy consumption and carbon emission. According to the method, the energy consumption cost, the carbon emission intensity and the production efficiency are planned as a whole through the multi-objective optimization algorithm, the global optimal decision under the equipment cooperation and dynamic working conditions is realized, and the complex requirements of multi-variety small-batch production are effectively met.
Owner:SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD +1

Linear control method for girder assembly in incremental launching construction

The invention relates to the technical field of bridges, and provides a linear control method for girder assembly in incremental launching construction, which comprises the following steps of: temporarily assembling a kth batch of girder sections according to a positioning height difference calculated value on a construction site, and determining an optimal space positioning parameter of a temporary stress-free linear shape when a girder section height difference measured value of each girder section is smaller than a preset threshold value; and welding the kth batch of beam sections, then carrying out incremental launching construction on the kth batch of beam sections in place, when the kth batch of beam sections is not the last batch of beam sections, obtaining a tail beam height difference measured value of the last beam section of the kth batch of beam sections, and determining a positioning height difference calculated value of the first beam section of the (k + 1) th batch of beam sections and positioning height difference calculated values of the remaining beam sections. According to the method, the splicing error construction of each batch is controlled, and the splicing construction of the next batch is guided through the correction of the actual tail end state after the pushing of the previous batch, so that the timely correction of the periodic linear error is realized, and the high-precision linear control of the main beam in the multi-round pushing construction is realized.
Owner:HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD

Land assembly type wind power tower drum foundation

ActiveCN222332757USolve problems such as uncontrollable pouring qualityEasy constructionWind motor supports/mountsWind energy generationReinforced concretePre stress
The utility model discloses a land assembly type wind power tower drum foundation which comprises a reinforced concrete bottom plate and a common concrete shell. A plurality of first pre-embedded pre-stressed anchor rods are pre-embedded in the top of the reinforced concrete bottom plate in the circumferential direction, and a plurality of second pre-embedded pre-stressed anchor rods arranged in the circumferential direction are pre-embedded in the inner sides of the first pre-embedded pre-stressed anchor rods. The foundation is unique in design, reduces the use amount of the profile steel, reduces the binding work of the steel bars, has the advantages of short construction period, less on-site input labor, high construction speed and the like, and meanwhile, the profile steel part of the inner layer of the foundation can be prefabricated in a factory in a segmented manner, so that the foundation has the advantage of convenience in transportation and assembly construction processes. The use amount of reinforced concrete materials is effectively reduced, factory prefabrication of most components is achieved, a standardized assembly process is adopted for assembly on site, and the construction efficiency is improved. And integral concrete pouring is combined, so that the integral stress performance of the foundation structure is further improved.
Owner:HUNAN UNIV

Standardized and rapid assembly construction method for tunnel secondary lining steel

The application discloses a tunnel secondary lining steel bar standardization rapid assembly construction method. The application has two technical paths: technical path A processes five segmental assembly secondary lining steel bars outside a hole, realizes inward bending through movable hinges between segments, achieves overall reduction of the secondary lining steel bars, and finally pours secondary lining concrete through walking, jacking systems of the secondary lining steel bar assembly trolley, space dislocation of forward movement of the secondary lining trolley and re-retreat positioning. Technical path B lengthens a reserved height of a tunnel inverted arch steel bar, reduces the overall height of the secondary lining steel bars, processes secondary lining steel bar annular pieces outside the hole, realizes longitudinal transportation of the secondary lining steel bar annular pieces through walking, jacking and rotating systems of the secondary lining steel bar assembly trolley, 90-degree rotation, space dislocation of forward movement of the secondary lining trolley and re-retreat positioning, and finally pours secondary lining concrete. The two methods can realize standardization production of secondary lining steel bars outside the hole and transportation to the tunnel for installation.
Owner:GUIZHOU JIAOTONG ECONOMIC & TECHNOLOGY RESEARCH & DEVELOPMENT CO LTD +2

A connecting component for prefabricated buildings

The present invention discloses a connection component for prefabricated buildings, comprising: a building column and a building beam, and a right-angle fastener fitted at the included angle between the building column and the building beam, the right-angle fastener being fixedly installed between the building column and the building beam; further comprising: a fastening groove, which is opened at the outer side position of the right-angle fastener, a first pressing member and a second pressing member are respectively snap-connected through the fastening groove at the front and rear sides above the right-angle fastener, the tops of the first pressing member and the second pressing member are overlapped with each other, the right-angle fastener, the first pressing member and the second pressing member are fixedly connected to the building column or the building beam through fixing screws, and the ends of the fixing screws are correspondingly connected with fixing nuts. This connection component for prefabricated buildings can be adaptively combined and used according to different joint structures, which is beneficial to improving the connection strength, can stably buffer, is convenient for rapid assembly, and is beneficial to improving the overall assembly construction efficiency of prefabricated buildings.
Owner:ZHEJIANG HONGAN CONSTR CO LTD

Assembly construction method of biological shielding wall of fusion device and biological shielding wall

The invention provides an assembly construction method of a biological shielding wall of a fusion device and the biological shielding wall. The assembly construction method of the biological shielding wall of the fusion device comprises the following steps: manufacturing a wall body framework of a prefabricated sub-module; the wall body frameworks of the prefabricated submodules are assembled in the circumferential direction to obtain an annular framework of the biological shielding wall module, and the biological shielding wall module at least comprises a top shielding module used for arranging embedded parts and a bottom shielding module used for arranging the bottom of a Tokamak Dewar base and an annular support; and the annular framework is hoisted to a pouring foundation, and the interior of the annular framework is poured after hoisting is completed every time. According to the method, on-site high-altitude, high-strength and long-time complex operation is reduced, and construction safety risks are reduced. In addition, if internal parts need to be replaced or overhauled in the future, corresponding structures on the specific prefabricated submodules can be directionally dismantled, and when the service life of the fusion device is over, modular dismantling of the biological shielding wall and waste treatment are more efficient.
Owner:聚变新能(安徽)有限公司

Cornice aluminum plate curtain wall construction system for built-in snow melting system of upright quadrangular pyramid grid roof

The utility model relates to a cornice aluminum plate curtain wall construction system of an upright quadrangular pyramid grid roof built-in snow melting system. The cornice aluminum plate curtain wall construction system comprises a steel keel and concrete structure connecting system, a steel keel ground jig frame accurate assembling system, a steel keel whole truss hoisting system and a gutter cornice snow melting system. According to the steel keel and concrete structure connecting system, the transverse and vertical keels are reasonably stressed, the overall performance of the wall is good, the firmness degree of the steel keel and the building body is improved, and good technical and economic benefits are achieved; according to the precise assembling system for the steel keel ground jig frame, the auxiliary control assembling precision is improved, errors generated during construction assembling are reduced, the situation that assembling construction of keel units on the ground is inconvenient is avoided, and the assembling construction efficiency is improved; when the steel keel whole truss hoisting system hoists the keel main body, through limiting and fixing arrangement of the clamping pieces, the stability of the keel main body during use is guaranteed, and the construction risk of steel keel whole truss hoisting is reduced.
Owner:CONSTR & INSTALLATION ENG THE THIRD ENG GROUP OF CHINA RAILWAY +1

Fabricated shear wall structure and construction method thereof

The invention provides a fabricated shear wall structure and a construction method thereof, and relates to the technical field of construction.After a lower prefabricated wall is installed and fixed, a prefabricated beam is hoisted, a beam end connecting assembly at the end of the prefabricated beam is connected with a lower wall top connecting assembly arranged at the top of the lower prefabricated wall, and a prefabricated floor slab can be hoisted after connection is completed; the prefabricated floor slab is placed on the top of the prefabricated beam or the lower prefabricated wall, then the upper prefabricated wall is hoisted, the upper wall bottom connecting assembly on the upper prefabricated wall is connected with the lower wall top connecting assembly, and therefore connection of the prefabricated beam, the upper prefabricated wall and the lower prefabricated wall is completed. Continuous and rapid assembly construction can be achieved, the construction period is effectively shortened, and the technical problems that in the prior art, grouting sleeves are adopted for connection between prefabricated concrete floors and shear walls and connection between beams and shear walls, the construction period is long, and temporary supporting structures need to be additionally used are solved.
Owner:POWERCHINA HUADONG ENG CORP LTD

Electromechanical pipeline comprehensive arrangement evaluation implementation system and application evaluation method

The invention relates to the technical field of construction engineering comprehensive pipeline arrangement, in particular to an electromechanical pipeline comprehensive arrangement evaluation implementation system and an application evaluation method. The evaluation implementation system adopts a modular construction technology of an assembly type prefabricated pipe comprehensive as the implementation content of an electromechanical full-specialty pipeline implementation stage; and evaluating the application effect of the modular construction of the pipe comprehensive from a plurality of evaluation indexes so as to form an evaluation system of the application effect of the modular construction of the pipe comprehensive, and evaluating the modular construction technology of the electromechanical full-specialty pipeline based on the evaluation system of the application effect of the modular construction of the pipe comprehensive. Therefore, whether the technology adopted in the electromechanical pipeline comprehensive arrangement evaluation system meets the requirements of construction efficiency and construction quality or not is determined, whether the technology meets the current building assembly construction concept or not is judged, and whether the electromechanical full-professional pipeline modularization construction method meets the requirements of cost, clear height, work efficiency and the like or not is judged. Scientific and reasonable reference basis is provided, and the accuracy of application evaluation is ensured.
Owner:CCCC FOURTH HARBOR ENG CO LTD

Block assembly construction method and sheet material

To improve the workability of a block assembly formed by assembling a plurality of blocks.SOLUTION: A block assembly construction method for forming a block assembly by assembling a plurality of brick blocks 32, includes: a block arrangement step of arranging the plurality of brick blocks 32 along sealing portions 84 that protrude from a surface 82A of a sheet material 80 and extend in the shape of joints M of a brick block wall 30; and a filling step of filling the joints M of adjacent brick blocks 32 with a filling material 36.SELECTED DRAWING: Figure 8
Owner:TAKENAKA CORP