22results about How to "Reasonable structural stress" patented technology

The invention relates to an opening and closing roof structure system which comprises a fixed roof and a movable roof, the fixed roof comprises an arched roof and a plurality of main diameter beams, the main diameter beams are distributed below the arched roof in an umbrella rib shape in the circumferential direction of the arched roof, one end of each main diameter beam is connected with the arched roof, the other end of each main diameter beam is fixed to a foundation, and a circular opening is formed in the center of the arched roof; the retractable roof is arranged on the fixed roof and composed of a plurality of petal-shaped movable roof units, and the movable roof units can move in the radial direction of the fixed roof so as to open or cover the circular opening. The movable roof units are driven to move in the radial direction of the fixed roof to open or cover the circular opening, so that mutual conversion between indoor space and outdoor space of a venue is achieved, natural conditions are fully utilized, the opening and closing roof has the advantages of being novel in opening and closing mode, reasonable in structural stress, convenient to drive and control and the like, the structural form of the opening and closing roof is enriched, and the service life of the opening and closing roof is prolonged. The method is suitable for function improvement of newly-built buildings and existing stadiums.

The utility model relates to the technical field of existing building foundation reinforcement treatment, in particular to an existing subway tunnel reinforcement structure adopting a concrete-filled steel tube mixing composite pile, which comprises a mixing pile and a concrete-filled steel tube core pile from outside to inside, the concrete-filled steel tube core pile is composed of a steel tube and concrete poured into the steel tube, the pile top of the concrete-filled steel tube mixing composite pile is located outside the duct piece, a reinforcement cage is arranged in the pile head of the concrete-filled steel tube mixing composite pile in a penetrating mode, and a longitudinal beam is arranged in the subway tunnel. And the longitudinal beams and the reinforcement cage are connected and fixed to form an integral structure. The utility model has the advantages of large pile forming, reasonable structure stress, high bearing capacity, short construction equipment, slight disturbance, no pollution, low vibration and low noise.

The invention discloses an abrupt slope mountain photovoltaic micro pile foundation construction method under complex geological conditions, and relates to the technical field of photovoltaic foundation construction. According to the method, in order to solve the problems that the slope of the abrupt-slope mountain land is large, the terrain is complex, large machines are difficult to operate, and the ecological environment is sensitive, the structural form of small-diameter pile groups and chamfered triangular bearing platforms is adopted, the heavy-load unmanned aerial vehicle hoisting technology is combined, and minimally invasive, efficient and green construction is achieved. The core of the method comprises the steps of construction preparation, measurement positioning, hole forming, reinforcement cage and bearing platform reinforcement installation, material transportation based on the heavy-load unmanned aerial vehicle, concrete pouring, maintenance and the like. The method is high in environmental adaptability, capable of overcoming 15-45-degree abrupt slopes and complex geological conditions and greatly reducing earth excavation and vegetation damage, high in structural bearing capacity and low in manufacturing cost, solves the problems that a traditional construction method is low in efficiency, serious in ecological damage and the like, and is suitable for mountain photovoltaic power station projects, particularly suitable for photovoltaic foundation construction of ecological sensitive areas.

The utility model relates to the technical field of offshore wind power foundations, in particular to a multi-foot stool type concrete-filled steel tube mixing composite pile foundation for offshore wind power, which comprises a multi-foot stool and a plurality of concrete-filled steel tube mixing composite piles arranged at the bottom of the multi-foot stool, and offshore wind power equipment is connected and supported above the multi-foot stool; the multiple concrete-filled steel tube mixing composite piles are vertically arranged below the multi-foot frame, the bottoms of the concrete-filled steel tube mixing composite piles are inserted into a seabed soil layer, and the parts, inserted into the seabed soil layer, of the concrete-filled steel tube mixing composite piles comprise mixing piles and concrete-filled steel tube piles from outside to inside. The steel pipe concrete pile is composed of a steel pipe and concrete poured into the steel pipe. The utility model has the advantages that: 1) the structure stress is reasonable, the foundation cost and construction difficulty are reduced, 2) the corrosion resistance of the foundation is improved, 3) the anti-fatigue performance is good, 4) the service life of the foundation is prolonged, 5) the impact resistance of the structure is strong, 6) the structure rigidity is large, the stability is strong, and the applicable seawater depth is large.

The utility model relates to an integral abutment device suitable for a cold-bending curled U-shaped steel composite beam. At present, separated bridge abutments and semi-integral bridge abutments are complex in structure and tedious in construction, bridge heads are prone to damage, and durability is poor. The U-shaped cross-section cold-bending edge-curling concrete bridge comprises a cold-bending edge-curling U-shaped cross-section steel beam, a concrete bridge deck slab and an integral bridge abutment, the upper flange of the cold-bending curled-edge U-shaped-section steel beam is fixedly connected with the concrete bridge deck, the two ends of the cold-bending curled-edge U-shaped-section steel beam are embedded into the integral bridge abutment, and longitudinal load-bearing steel bars are arranged in the concrete bridge deck. Holes are formed in the two webs, close to the side of the integral bridge abutment, of the cold-bending curled-edge U-shaped-section steel beam respectively, and transverse penetrating steel bars are arranged in the holes. According to the utility model, the construction speed and the industrialization degree are improved, the bending and shearing resistance of the small and medium span beam bridge is enhanced, and the stability and durability of the beam body are improved.

The invention discloses a multi-stage main drive retaining design method for shield in-ground docking, relates to the technical field of shield tunnel engineering, and is used for performing main drive retaining reinforcement on a preceding shield during shield in-ground docking, and the shield in-ground docking is divided into two stages based on the distance between the preceding shield and a following shield. A retaining steel plate is arranged along the outer surface of the main drive in the first stage, when the left and right reaction torque oil cylinders are not disassembled, the main drive retaining steel plates of the upper semicircle and the lower semicircle are installed firstly, the main drive left and right reaction torque oil cylinders are disassembled in the second stage, the retaining steel plates continue to be arranged at the vacant positions, and theoretical support is provided for reinforcing and retaining construction of the main drive. Therefore, the safety and the stability of the advanced shield tunneling machine structure in the butt joint process are ensured. Furthermore, by designing the plane size of the main drive retaining steel plate, determining the welding seam range, determining the retreating force of the telescopic oil cylinder in the first stage and the second stage, checking and determining the thickness, the number and the distance of the retaining steel plates in the first stage and the second stage and the like, the scheme can be actually applied to the ground and is suitable for industrial popularization.

The utility model provides an overhanging type reservoir water taking pump house which comprises an overhanging supporting bent frame located in a still water area on the bank side of a reservoir, one side of the overhanging supporting bent frame is located in the reservoir, the other side of the overhanging supporting bent frame is located on a bank slope of the reservoir, and the top of the overhanging supporting bent frame is provided with a bent frame upper beam plate structure. A mounting room and a maintenance room are arranged on the beam plate structure at the upper part of the framed bent, the maintenance room is close to one side of a bank slope, a water pump system is mounted in the mounting room, a water pump water collecting pipe is mounted at the lower part of the water pump system, and the other end of the water pump water collecting pipe vertically extends downwards and extends below the water surface of a reservoir; and the other end of the water pump water outlet pipe is connected with the pump station water outlet pipe. The overhanging type reservoir water taking pump house has the advantages of being high in water taking guarantee rate, easy and convenient to install, convenient to operate and manage, capable of saving investment and the like, and wide in application prospect.

The invention discloses a novel reinforcing mesh for reducing tunnel rockburst harm and initial support cracking, which comprises transverse embossed wave-isolating reinforcing steel bars (11) and longitudinal embossed wave-isolating reinforcing steel bars (12) which are mutually woven, the upper and lower waveform interlacing parts of the transverse embossed wave-isolating reinforcing steel bars (11) and the longitudinal embossed wave-isolating reinforcing steel bars (12) are woven in a cross shape, and the interlacing parts (14) are fixedly connected; the transverse embossed wave-isolating reinforcing steel bars (11) and the longitudinal embossed wave-isolating reinforcing steel bars (12) are vertically arranged to form an embossed wave-isolating dense-grid fine reinforcing steel bar net (1) with one closed side, the reinforcing steel bar net is also provided with grids (1a) with the same size, and the outer end parts of the transverse embossed wave-isolating reinforcing steel bars (11) and the longitudinal embossed wave-isolating reinforcing steel bars (12) are respectively provided with a section of extending reinforcing steel bars (13) with reserved ends. The device has the advantages that energy generated by rockburst, earthquakes, deformation and the like can be effectively absorbed or buffered, and the safety of tunnel construction and operation is enhanced.

The invention discloses an automatic rapid bar penetrating device in a narrow space, which comprises supporting legs, a sliding rail, a cross beam, a bar penetrating mechanism and adjustable steel bar supporting rods, the two ends of the sliding rail are arranged on the supporting legs, the two ends of the cross beam are arranged on the sliding rail, the bar penetrating mechanism is arranged below the cross beam, and the two side edges of the bar penetrating mechanism are arranged on the adjustable steel bar supporting rods below the cross beam. The lifting and advancing device has the beneficial effects that during rebar penetrating, the advancing device moves repeatedly in a small space to quickly and automatically penetrate rebars, the rebars with one half of the circumference are inserted every time the rebars move for one cycle, the advancing device returns to the original position when one half of the circumference of the rebars is left through the rebars lifting device, and the rebars are inserted into the rebars through the rebars lifting device. Manual dragging is replaced by reciprocating rapid movement of an automatic machine in a small range; the circular motion of a motor bearing is converted into an efficient elliptical motion path, so that the rib penetrating speed in a narrow space is increased; no working face or preposed working condition is added, and a special construction site does not need to be erected.

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

The present invention provides a concave metal plate unit based on the external hanging of a plane curtain wall. When the plane component-type curtain wall is installed, it directly passes through the interlayer panel from the main structure, and the external hanging has a strong load-bearing capacity and a three-dimensionally adjustable transfer system. The concave perforated metal plate unit is processed and assembled in the factory by various aluminum profile components, modeling metal plates and fasteners, and is integrally hung on the external hanging transfer system on site through a hanging system, and an anti-seismic anti-slip and anti-side sliding device is also provided. The present invention has the advantages of complete and beautiful effect, reasonable structural force, safety and reliability, superior waterproof performance, simple and convenient processing and installation, simple and easy quality precision control, strong adjustability, good replaceability, strong applicability, good economy, etc., and has a good prospect for promotion and application in the field of building curtain walls.

The present invention is an inner partition wall of a steel structure pool and a steel structure pool, wherein the inner partition wall of the steel structure pool includes a steel plate with a vertically arranged plate surface, and a plurality of transverse stiffening ribs and a plurality of longitudinal stiffening ribs are fixedly arranged on the plate surfaces on both sides of the steel plate, the axial direction of the transverse stiffening ribs is arranged along the vertical direction, and the axial direction of the longitudinal stiffening ribs is arranged along the horizontal direction. The surrounding of the steel plate is fixedly connected to the steel structure body of the steel structure pool, and both ends of the transverse stiffening ribs and both ends of the longitudinal stiffening ribs are fixedly connected to the steel structure body of the steel structure pool. The present invention can be applied to large pools that need inner partition walls, and has a simple structure, reasonable force, convenient construction, and low cost.

The invention discloses a photovoltaic prefabricated pipe pile bearing capacity enhancing structure and a construction method thereof, and belongs to the technical field of photovoltaic power generation pile foundations. The structure comprises a prefabricated pipe pile and a bearing capacity enhancing mechanism, and the bearing capacity enhancing mechanism is arranged at the lower end of the prefabricated pipe pile and partially extends into the prefabricated pipe pile. On the basis that the original structure of the prefabricated pipe pile is not changed, a bearing capacity enhancing mechanism is additionally arranged at the lower end of the prefabricated pipe pile, so that the bearing capacity of the prefabricated pipe pile is improved through the bearing capacity enhancing mechanism, the strength and rigidity of the prefabricated pipe pile are ensured, the structure of the prefabricated pipe pile can be prevented from being complicated, and the manufacturing cost of the prefabricated pipe pile can be reduced; the construction process is simplified, and the construction efficiency is improved.

The present invention discloses a glue-free aluminum plate curtain wall structure in the field of aluminum plate curtain wall technology, including an aluminum plate curtain wall and a keel, wherein the keel is used to connect two adjacent aluminum plate curtain walls, and the aluminum plate curtain wall has an "L"-shaped presser foot, and the keel is provided with a side baffle, a first rubber strip notch and a nose head, a first rubber strip is arranged in the first rubber strip notch, a pressing plate fixes the presser foot between the side baffle and the nose head and makes the first rubber strip pressed against the keel by the presser foot; the pressing plate is fixed on the nose head; a second rubber strip notch is arranged on the pressing plate, a second rubber strip is arranged in the second rubber strip notch, and the second rubber strip is pressed against the presser foot by the pressing plate. The glue-free aluminum plate curtain wall structure of the present invention is waterproof by adopting a waterproof rubber strip, and does not need to be glued, and only two waterproof rubber strips are used for sealing and waterproofing, and the waterproof effect is good.

A floor structure support negative reinforcement net module relates to the technical field of buildings and comprises an integrated stressed reinforcement group, a plurality of distributed reinforcements, a plurality of horizontal displacement resistant short reinforcements, end triangular support split heads, middle triangular support split heads, position marks and integrated management information. Compared with the prior art, the reinforcing steel bar binding device has the advantages of being capable of achieving integrated management of reinforcing steel bar information, reasonable in structural stress, good in stability, capable of being used for cast-in-place and assembly structures, free of construction procedures of supporting split heads, capable of improving the construction environment of reinforcing steel bar binding, capable of reducing the acceptance workload of a working face, and capable of improving construction quality and construction speed.

This utility model discloses a wind-resistant and stable photovoltaic (PV) support and a PV fixing system. The PV support includes PHC pipe piles and a support structure fixed to the PHC pipe piles. The support structure includes a diagonal beam, a front column, a rear column, a front diagonal support, a rear diagonal support, an upper clamp, and a lower clamp. The front and rear columns are fixed to both sides of the PHC pipe piles by the upper and lower clamps. A Z-shaped crossbeam, diagonal brace, and crossarm are fixed between the front and rear columns. A first support block is fixed between the crossarm and the upper clamp, and a second support block is fixed between the upper and lower clamps. The first and second support blocks are located on both sides of the PHC pipe piles. The diagonal beam is used to fix the PV panels. The front diagonal support, rear diagonal support, and diagonal beam are arranged in a triangular pattern. This utility model, by setting support blocks and reinforcing ribs, enables the PV support to withstand greater wind force, saves 20% of steel material, and reduces weight.

The invention belongs to the technical field of building structure construction, provides an inner film external spraying method for building a thin shell structure, particularly can be used for building various special-shaped thin shell structures, and has the characteristics of high adaptability, diversity and applicability and high economical efficiency. The structure stress is more reasonable, the adaptability is wider, and the diversity of building appearance forming is remarkably improved. And by adopting the overall one-time forming technology of the outline, the stress of the structure is more reasonable, the overall integrity and stability are firmer, and the appearance is excellent under various external forces, so that the application value and the use safety are further improved. Meanwhile, the technology subverts a traditional cast-in-place concrete pouring technology, layered and segmented operation construction is conducted through sprayed concrete, operation of constructors is reduced, risk factors are reduced, the construction efficiency is improved, and construction is safer and more reliable.

This utility model belongs to the field of offshore wind power and provides an underwater three-pile jacket structure for offshore wind power and marine ranching, which includes a wind turbine section and a marine ranching section. The wind turbine section consists of pipe piles, a wind turbine tower, a wind turbine foundation column, wind turbine diagonal braces, wind turbine cross braces, and jacket leg columns. There are three pipe piles, and the upper end of each pipe pile is connected to a jacket leg column. Each jacket leg column is connected to the lower end of the wind turbine foundation column through a corresponding wind turbine cross brace. The upper end of each jacket leg column is connected to a wind turbine diagonal brace and a gabion diagonal brace, forming a Y-shaped node. Each wind turbine diagonal brace is connected to the wind turbine foundation column. The marine ranching section includes a gabion frame and a netting. The netting is wrapped around the outside of the gabion frame.

The utility model belongs to the technical field of power transmission line engineering, and particularly relates to a door-shaped high-voltage cable bridge structure which comprises profile steel stand columns, profile steel beams and cable supports, the bottoms of the profile steel stand columns are fixed to a foundation, and the side walls of the tops of the profile steel stand columns are fixed to profile steel longitudinal beams and profile steel cross beams. The plurality of profile steel longitudinal beams and the plurality of profile steel cross beams are vertically fixed; cable supports are fixed to the tops of the profile steel stand columns and the profile steel beams and comprise vertical limbs and supporting arms, the vertical limbs comprise two sets of first short vertical limbs on the inner side of the cable supports and second short vertical limbs on the outer side of the cable supports, the supporting arms are arranged in multiple layers, one ends of the supporting arms are fixed to the second short vertical limbs, and the other ends of the supporting arms are fixed to the second short vertical limbs. The top of the inner end of the supporting arm on the uppermost layer is fixed with the bottom of a first short vertical limb, multiple layers of supporting arms are arranged in the cable support, different supporting arms can be connected with different cable fixing pieces, and the effect that all cables are convenient to supervise and maintain is achieved.

The present invention provides a method for excavating a pilot tunnel with a micro-core soil, and relates to the technical field of underground construction engineering. The method for excavating a pilot tunnel with a micro-core soil comprises the following steps: S1. A small guide tube is set along the top of the pilot tunnel excavation surface, and then grouting is performed in the small guide tube; S2. The pilot tunnel is excavated with a full section, and the micro-core soil is retained in the pilot tunnel at the same time; S3. Initial concrete is sprayed on the pilot tunnel excavation surface, and then a steel frame N2 with a large arch side wall grid is installed in the pilot tunnel; S4. Next, a side wall grid steel frame N3 is installed in the pilot tunnel, and a connecting plate is used to connect the side wall grid steel frame N2 with a large arch and the side wall grid steel frame N3; S5. Concrete is sprayed on the surface of the initial concrete spraying for a second time to a designed thickness. The present invention provides a method for excavating a pilot tunnel with a micro-core soil, which is convenient and quick to install, improves the excavation efficiency, and solves the problem of arch top sinking and low efficiency in step method excavation.

The present invention relates to an assembled large-span steel mesh hollow floor structure, which includes a bottom plate, a box fixing, a longitudinal stress-bearing steel mesh of the bottom plate, a built-in box, adjustable legs of the box, a protective layer pad and a reinforced steel mesh, wherein the bottom plate is arranged at the bottom, the longitudinal stress-bearing steel mesh of the bottom plate is fixed between the bottom plate and the built-in box, the reinforced steel mesh fixes the bottom plate and the protective layer pad together by rivets or self-tapping screws, a plurality of box fixings are arranged at intervals on the bottom plate, a plurality of the built-in boxes are arranged at intervals through the box fixings and fixed on the bottom plate above the stress-bearing steel mesh, the four top corners of the built-in box are provided with adjustable legs of the box, the reinforced steel mesh is buckled on the top of the built-in box, and the bottom of the reinforced steel mesh is spaced from the bottom plate by a plurality of protective layer pads. The present invention has a simple and reasonable structure, low labor intensity, low cost, fast construction progress and easy quality control.

The present invention proposes a punching and buckling pliers device, wherein the first clamp assembly includes a first bracket, and a first driving mechanism and a first clamp installed on the first bracket, the first driving mechanism is connected to the first clamp, and drives the first clamp to slide up and down; the second clamp assembly includes a second bracket, and a second driving mechanism and a second clamp installed on the second bracket, the second driving mechanism is connected to the second clamp, and drives the second clamp to slide up and down; the screwing mechanism is connected to the first bracket and the second bracket, drives the first clamp assembly to apply torque to the drill in a first direction, and drives the second clamp assembly to apply torque to the drill in a second direction opposite to the first direction; the offset mechanism is connected to the first bracket and / or the second bracket, and drives the first clamp and the second clamp to move away from each other in the left and right directions. Only two clamps are needed to realize the buckling operation and the buckling operation, and the structure is reasonably stressed. The present invention also proposes a method for using the above-mentioned punching and buckling pliers device.