131results about "Bridge applications" patented technology

The invention relates to an inverted arch trestle system and a construction method, and belongs to the technical field of tunnel trestles, the inverted arch trestle system comprises a bridge body, a front approach bridge is hinged to one end of the bridge body, a rear approach bridge is hinged to the other end of the bridge body, a front support is arranged at one end of the bridge body, and a rear support is fixed to the other end of the bridge body; the front support comprises supporting legs, each supporting leg comprises an inner barrel, an outer barrel, a base plate and a hydraulic cylinder, the hydraulic cylinders are vertically located in the outer barrels, the inner barrels are slidably connected with the outer barrels, the piston ends of the hydraulic cylinders are fixedly connected with the inner walls of the tops of the inner barrels, and one ends of bodies of the hydraulic cylinders are detachably connected with the inner walls of the bottoms of the outer barrels. A limiting assembly used for controlling whether one end of a hydraulic cylinder body is connected with the bottom of the outer barrel or not is arranged on the outer barrel. An inserting hole is formed in the vertical side wall of the outer barrel, when the length of the hydraulic cylinder adjusting supporting leg needs to be indirectly increased, the base plate is horizontally inserted and embedded into the outer barrel, one end of the hydraulic cylinder body is rotationally connected to the top of the base plate, and the effects that the adjusting flexibility of the trestle in a tunnel is improved, and the adjusting limitation is reduced are achieved.

The utility model relates to an integral rapidly-assembled aqueduct bent frame column construction operation platform which comprises a vertical rod support. Three layers of operation bedplates are arranged in the height direction of the vertical rod bracket at equal intervals; the guardrails are installed on the periphery of the vertical rod support and located between the adjacent working platens. The one-truss operation module is composed of the vertical rod support, the three layers of operation platens and the guardrails, the adjacent operation modules are connected through the hook-shaped plug pins, the operation modules can be modularly produced in batches, and when the operation modules are used, only the corresponding number of operation modules need to be selected according to the heights of the framed bent columns, and the operation modules can be conveniently assembled. The aqueduct bent frame column construction operation platform can be assembled by vertically stacking the multiple truss operation modules and inserting the hook-shaped plug pins, during disassembly, only the hook-shaped plug pins need to be pulled out and the operation modules need to be disassembled, compared with a traditional on-site building and scaffold disassembly mode, the operation modules of the construction operation platform can be repeatedly used, and the construction efficiency is improved. Assembly and disassembly are easy and fast, time and labor are saved, and the construction progress is effectively accelerated.

The invention discloses a multifunctional safety type connecting bridge system for an LNG (liquefied natural gas) filling wharf boat, which comprises a connecting bridge body, the connecting bridge body comprises an LNG equipment cabin and a pedestrian guardrail, an LNG pipeline group is laid in the LNG equipment cabin, and two ends of the LNG pipeline group are respectively communicated with a fixed pipeline of the connecting wharf boat and are output / input outwards; the LNG equipment cabin comprises an anti-explosion partition plate and an anti-explosion sealing top plate, the anti-explosion partition plate and the anti-explosion sealing top plate jointly define a cabin space for laying of the LNG pipeline set, the pedestrian guardrail is fixedly connected to the top of the LNG equipment cabin, and the pedestrian guardrail and the LNG equipment cabin define a pedestrian path; the LNG equipment cabin is movably connected with the wharf boat and the wharf through universal hinge supports. Through mechanical design and flexible connection design of vertical space layering, physical isolation of a dangerous source and a personnel channel is achieved in a single bridge body, safety is improved, the overall design is miniaturized, and the device is more suitable for transformation projects with limited space and can adapt to wharf boat operation under various hydrological conditions.

The invention provides a vehicle self-adaption compatible open island type elevated BRT station system which comprises an open island type elevated station structure, the elevated station structure comprises a ground layer and a two-layer composite layer arranged above the ground layer, and the two-layer composite layer comprises an open pedestrian overpass and an island type platform. The open type pedestrian overpass and the island type platform are of an integrated station-hall-free structure. The elevated station structure further comprises a central vertical traffic core connected with the ground layer and the two-layer composite layer. Passenger doors are arranged on the left side and the right side of a vehicle body of the BRT vehicle, a vehicle control system and an in-vehicle fare collection system are arranged in the BRT vehicle, and the vehicle control system is configured to automatically or manually control the passenger door on the corresponding side to be opened or closed according to the type of a stop platform. Through cooperation of station structure innovation, operation mode opening and vehicle configuration intelligence, the problems that a traditional BRT system is large in occupied area, poor in compatibility and rigid in dispatching can be solved.

The invention discloses a self-adaptive temperature control system of a large-span cable bridge and an installation method of the self-adaptive temperature control system. The self-adaptive temperature control system comprises a concrete support, a large-span bridge, a movable base, a limiting support, a fixed cable channel, a bridge cable channel, a first movable clamp, a second movable clamp, a movable wedge, a linear actuator, a third movable clamp, a fixed clamp and a cable. The two ends of the large-span bridge are arranged on the concrete supports on the corresponding sides through the movable bases and the limiting supports. A fixed cable channel arranged along the cable extension direction is arranged in the concrete support, and a through bridge cable channel is formed in the large-span bridge; the cable is fixedly laid in the channel through a plurality of fixing clamps. According to the scheme, the structural stability of the concrete support and the large-span bridge is protected, and the problem that in the prior art, a cable at the end of a large-span cable bridge is excessively abraded is solved.

The utility model provides an assembly type arch aqueduct supporting frame which comprises an arch rib, buttresses are installed at the bottom of the arch rib, a plurality of framed bent columns are arranged at the top of the arch rib, the tops of the framed bent columns are connected with an aqueduct body through an installation mechanism, and the installation mechanism comprises a connecting base and a slope installation column. A limiting groove is formed in the side edge of the inclined surface mounting column, the connecting seat is mounted at the top of the framed bent column, a mounting seat is mounted at the top of the connecting seat, a clamping assembly matched with the limiting groove is arranged in the mounting seat, and a pedal assembly matched with the clamping assembly is arranged on the outer surface of the mounting seat. Compared with the prior art, the aqueduct has the advantages that the aqueduct structure is formed by splicing the plurality of aqueduct bodies in a modularized mode, so that when a certain section of aqueduct body of the aqueduct is damaged, the aqueduct body at the damaged position can be replaced, and the maintenance cost of the aqueduct body is reduced.

The utility model discloses a river-crossing pipeline structure which comprises a foundation, two buttresses are poured on the foundation, the two buttresses are arranged on two banks of a river channel, and a pipeline main body structure is fixedly connected between the two buttresses. According to the river-crossing pipeline structure, the rigidity and the stability of the river-crossing pipeline are improved, the application range of the river-crossing pipeline is expanded, the overall sectional area of the structure is increased by utilizing the strength of the river-crossing steel pipe and adding the reinforced profile steel at the bottom, the structural stress in the middle of a large bending moment is reduced, and therefore when the span is large, the rigidity and the stability of the river-crossing pipeline are improved. Structures such as pipe bridges and trusses can be prevented from being used, the steel pipe can still be used for directly crossing the river channel, the application range of the river-crossing pipe bridge is widened, and remarkable economic benefits are achieved.

The utility model provides trench crossing supporting equipment. The ditch passing supporting equipment comprises an upper platform, a supporting frame and a moving mechanism, and the upper platform is installed at the top of the supporting frame; the supporting frame comprises at least two supports arranged in the X direction at intervals and a first connecting beam connected between the at least two supports. The moving mechanism comprises an axle, wheels installed on the axle and a telescopic rod capable of stretching out and drawing back in the Z direction, and the wheels move in the X direction. The telescopic rod is connected between the first connecting beam and the axle; when the telescopic rods stretch out, the lower surfaces of the supports are higher than the lower surfaces of the wheels. When the telescopic rods are compressed, the lower surfaces of the wheels are higher than the lower surface of the support, or the lower surfaces of the wheels are flush with the lower surface of the support. The supporting device can move, the supporting device can be moved on site according to the route of the cleaning vehicle, and efficient cleaning is achieved.

The utility model belongs to the field of constructional engineering, and particularly relates to an assembly type foundation pit transportation channel. Comprising a supporting structure, a cross beam, straight plates, bent plates and protective components. The supporting component comprises at least one bottom column part vertically connected with a supporting bottom column and a supporting frame in threaded connection with the top of the bottom column part, the supporting structure comprises two supporting components vertically arranged on the ground and a cross beam in threaded connection with the tops of the two supporting components, and protection components are symmetrically arranged at the two ends of the cross beam; the protection parts close to each other are connected in sequence; a plurality of groups of supporting structures are uniformly arranged at the bottoms of the straight plates and the bent plates, at least one straight plate is sequentially connected to form a straight plate path, at least one bent plate is sequentially connected to form a bent plate path, and the bent plate path is arranged between the two straight plate paths.

According to the trestle structure using the underground diaphragm wall and the top ring beam as the foundation near the subway foundation pit, during construction, a foundation pit first support is arranged between the top ring beam and the underground diaphragm wall, a limiting block is arranged on the foundation pit first support, an overhanging trestle plate is arranged on the top ring beam, and the overhanging trestle plate is arranged on the top ring beam; a trestle plate is installed on the foundation pit first support between the overhanging trestle plate and the limiting block and the top ring beam, a left partition plate is arranged on the left side of the trestle plate and on the top ring beam, and a right partition plate is arranged on the right side of the trestle plate and on the foundation pit first support. A gap between the cantilever trestle plate and the left partition plate on the top ring beam is filled with left filling concrete, and a gap between the right partition plate and the limiting block on the foundation pit first support is filled with right filling concrete. According to the utility model, the requirements of excavator standing and earthwork vehicle running can be met, the upper part of a subway can be effectively prevented from bearing a larger load, and a subway tunnel is effectively prevented from generating larger deformation.

This invention relates to the field of pipeline crossing structure safety technology in oil and gas transportation and water conservancy distribution engineering, specifically to a graded limiting design method and device for pipeline bridge supports based on time history analysis. The design method includes disc spring selection and parameter design, initial setting of graded limiting structure parameters, time history analysis verification and parameter optimization, device assembly and construction, and graded limiting layout. The supporting device includes disc spring assemblies, disc spring bases, upper pressure plates, limiting supports, and other components. The disc spring assemblies are made of stacked alloy steel, and the limiting supports have a Z-shaped structure with stiffening ribs. Each component is precision-machined and wear-resistant, and is fixed to a PTFE sliding plate with high-strength bolts. A sleeve provides sealing protection. This invention features a refined design, convenient installation, precise limiting, high stability, and flexible adjustment of the gap and disc spring combination to adapt to different pipeline bridge working conditions. It can effectively limit the lateral over-limit displacement of the pipeline bridge, avoid disc spring eccentric instability, and ensure the structural safety of the pipeline bridge under loads such as earthquakes and water hammer.

The application discloses an emergency repair method for a full-precast assembly type steel reinforced concrete structure, and comprises the following steps: 1, determining the position of the type steel reinforced concrete structure impacted; 2, non-destructive testing the position of the type steel reinforced concrete structure impacted; 3, determining the damage level of the position of the type steel reinforced concrete structure impacted; 4, determining the repair and construction scheme corresponding to each damage level; 5, determining the specific structure composition of the full-precast impact-resistant type steel reinforced concrete column, beam and wall structure. The application divides the damage of the type steel reinforced concrete structure into four levels by means of artificial visual observation and non-destructive testing of the type steel reinforced concrete structure impacted, in combination with the ratio of the actual impact force and the shear capacity of the oblique section, so that different emergency repair schemes can be formulated according to different damage conditions, the engineering facility use function can be quickly restored, and the use safety of the engineering structure can be ensured.

The utility model relates to the technical field of hydraulic engineering, and discloses an aqueduct body inner membrane compression bar system which comprises I-shaped steel, the bottom end of the I-shaped steel is connected with a supporting rod, the I-shaped steel is provided with a finish rolling nut, and the bottom end of the supporting rod is fixedly provided with a connecting rod. The I-shaped steel, the connecting rods and the spiral supporting rod structures are arranged, the pressing rod system is assembled outside a site, the pressing rod system is hoisted to a construction face at a time after all the assembling is completed, the I-shaped steel and concrete are fixed through the deformed steel bars and the finish rolling nuts, and the connecting rods are fixed to the concrete through the transverse connecting pieces. The three spiral supporting rod structures play a role in supporting a steel formwork on the inner side of a U-shaped aqueduct body, the distance between the pressing rod systems in the longitudinal direction is 1.5 m, the pressing rod systems and a steel formwork on the outer side of the aqueduct body are connected into a whole, the formworks can be integrally spliced off site, the formworks can be integrally hoisted to a working face after being spliced, and the formworks can also be integrally dismantled at a time when being dismantled.

The invention relates to the technical field of rail transit, in particular to a construction method of a permanent large-span platform layer structure, a steel truss system is assembled under the prefabrication working condition, the steel truss system is formed by splicing a plurality of Bailey steel sheets, and the transversely adjacent Bailey steel sheets are fixedly connected through a transverse splicing structure to form a whole; a profiled steel sheet bottom die is welded on a steel truss system through a shear connector, a steel bar truss is welded on the profiled steel sheet bottom die, then concrete is poured to form a steel bar truss floor support plate, and the steel bar truss floor support plate and the steel truss system are fixedly connected to form a platform layer structure prefabricated assembly section of an integral structure. The method has the advantages that the assembly degree is high, the quality is guaranteed, the construction speed is high, the problem of a large-span structure without columns in the middle can be solved, cast-in-place large-size components and a field complex tensioning process are not needed, and meanwhile the vibration influence of a train is reduced to a great extent; and the special-shaped steel member is directly connected with the composite floor, so that the integrality is better.

The invention discloses a replaceable coal conveying trestle sliding support anti-falling device which comprises anti-falling steel sleeves, the anti-falling steel sleeves are arranged on the outer sides of the four edges of a sliding support at intervals, the sliding support is arranged on the upper surface of a supporting component in the longitudinal direction, and the supporting component is fixedly installed on a coal conveying trestle body structure. Comprising two transverse limiting assemblies and two longitudinal anti-skid assemblies, and the two transverse limiting assemblies and the two longitudinal anti-skid assemblies are fixedly connected through second bolts; the anti-falling steel sleeve is fixedly connected with the supporting component through a plurality of first bolts. The invention belongs to the technical field of coal conveying protection equipment, and solves the problems that in the prior art, anti-falling parts of a sliding support of a coal conveying trestle are unreasonably arranged, worn and rusted parts cannot be rapidly replaced under the condition that production is not interrupted, and the whole support is prone to falling off and falling off. The device has the advantages of high structural safety, simplicity and convenience in installation, wide applicability, convenience in maintenance, quickness in replacement and the like.

The application discloses an aqueduct cast-in-place support structure, which comprises a bent cap cast on the top of a pier column and a beam support arranged between the bent caps of two adjacent pier columns. The bent cap is provided with a pair of hanging pieces on the left and right sides respectively. Each pair of hanging pieces is arranged on the front and back sides of the bent cap and is fixedly connected through a fixing mechanism. The left and right sides of the hanging piece are respectively provided with a support seat and a mounting seat for mounting a lowering mechanism. The two ends of the beam support are detachably connected to the lower ends of the corresponding hanging pieces. The top of the beam support is provided with a formwork system, and the aqueduct is cast on the formwork system. The two ends of the aqueduct are supported on the bent caps of the two adjacent pier columns and are supported on the support seats of the corresponding hanging pieces. The support seat is supported on the bent cap. The application further discloses a method for dismounting the beam support of the aqueduct cast-in-place support structure. The aqueduct cast-in-place support structure and the method for dismounting the beam support thereof can reduce the loosening of the hanging pieces during the dismounting of the beam support and improve the overall stability.

The invention discloses a construction method of a suspended bailey beam aqueduct body formwork. The construction method comprises the following steps that firstly, construction preparation is conducted; secondly, a bearing beam is installed; thirdly, a lifting sand box is installed and filled; fourthly, a bailey beam support is erected; fifthly, the bailey beam support is pre-pressed; sixthly, aqueduct formworks are installed; seventhly, concrete is poured in a layered mode; eighthly, the inner formwork is dismantled and maintained; ninthly, the movable groove-crossing reversely-hung working platform is in place; tenthly, the pressure of the lifting sand box on one side of the aqueduct is relieved, the outer formwork is removed, and the bailey beam support is removed; eleventhly, the lifting sand box on the other side of the aqueduct is subjected to pressure relief, an outer formwork is removed, and a bailey beam support is removed; 12, the bottom formwork and the bailey beam support at the bottom are reserved and maintained; and 13, pressure relief of the lifting sand box at the bottom of the aqueduct, dismantling of the bottom formwork and dismantling of the bailey beam support are conducted, the foundation reinforcement problem can be avoided, efficiency can be improved, cost can be reduced, and the construction period can be shortened.

The utility model discloses a buckle piece and a solid footpath plate. The buckle piece comprises a buckle main body, limiting plates are arranged at the two ends of the buckle body, and each limiting plate is provided with at least one locking opening. One side of the buckle main body is provided with one or more lug plates, and the lug plates can be bent to form bayonets; a first limiting space is formed between the two limiting plates in the length direction of the buckle body. A second limiting space is formed between the locking opening and the clamping opening in the width direction of the buckle body. The device can be installed without bolts, and is convenient to install, high in stability and high in safety.

The invention relates to the technical field of water conservancy projects, and discloses an emergency drainage structure and a design, layout and use method thereof. The emergency drainage structure comprises an aqueduct, a drainage channel and a control module; the aqueduct is provided with a water drainage opening used for emergency water drainage. The drainage channel is arranged on a drainage opening of the aqueduct and used for controlling opening and closing of the drainage opening, and the drainage channel comprises blocking layers connected through explosive bolts. The control module is arranged on the aqueduct and used for controlling detonation of the explosive bolts. The design method and the layout method are used for the emergency drainage structure. The using method is based on the emergency drainage structure. Therefore, top-speed response and accurate control are achieved, that is, the action time of the explosive bolt is at the millisecond level, the whole water drainage process is completed within several seconds, and an earthquake early warning window is perfectly matched. Layered design of the water drainage channel is achieved through a plurality of blocking layers, water drainage according to needs can be achieved instead of complete emptying, water resources are guaranteed to the maximum degree, and impact is reduced.

The invention relates to civil and hydraulic engineering construction, and discloses a large-span arch aqueduct main arch ring closed-loop regulation and control cast-in-place device and method. The device comprises a steel truss arch frame, a ring-dividing and section-dividing pouring control device, a monitoring regulation and control system, a buckle cable stabilizing system and an execution assembly. The arch ring is divided into an upper ring and a lower ring, each ring is divided into seven sections, namely symmetrical section groups I, II and III and an arch crown closure section IV, and isolation positioning assemblies are arranged for grout stopping and positioning. And the monitoring regulation and control system collects deflection, strain / stress and temperature and performs threshold judgment, rigidity reinforcement, cable force adjustment and / or temperature control maintenance are / is performed when the threshold is exceeded, and the operation is continued after the standard is reached through remeasurement. According to the method, the rings are put down and then put up, the rings I-III-II-IV are symmetrically poured, load-rigidity matching and linear-stress control are achieved, and the method is suitable for cast-in-place of the main arch ring of the arch aqueduct with the span larger than or equal to 100 m.

The utility model relates to the field of underground engineering building construction, in particular to a construction trestle which comprises a trestle bearing reinforced concrete frame structure and a bridge deck, the trestle bearing reinforced concrete frame structure comprises trestle columns, trestle longitudinal beams and trestle cross beams, and the bridge deck is formed by combining steel members. And the bridge deck slab is simply supported and fixed on the trestle cross beam. According to the bridge deck assembled by the steel members, the trestle can be quickly mounted and dismounted, the input of non-renewable resources and the generation of construction waste are reduced, the construction efficiency is remarkably improved, the whole life cycle cost is reduced, and the bridge deck has remarkable technical and economic advantages. The bridge deck slab adopts modular design and factory standardized production, and reduces field processing time, so that the construction period is shortened, the bridge deck slab can be reused, and resources are saved.

The utility model relates to an anti-overturning bridge plate device for installing a photovoltaic panel of a bolt-sphere net rack, and belongs to the technical field of installation of the photovoltaic panel of the bolt-sphere net rack. Comprising transverse supports and a bridge plate arranged on the upper portions of the transverse supports, barrier strips are arranged on the lower portions of the two sides of the bridge plate, purlines parallel to the transverse supports are arranged on the upper portions of the bridge plate, S-shaped hooks are arranged between the purlines and the transverse supports, upper hooks of the S-shaped hooks are hung on the purlines, lower hooks of the S-shaped hooks are hung on the transverse supports, and connected linear anti-overturning rope clamps are arranged between the S-shaped hooks hung on the same transverse support. The linear anti-overturning rope clamp is in contact with the upper end surface of the bridge plate; the device is simple in structure, convenient to assemble and disassemble and reliable in safety coefficient, does not turn over when being treaded, and improves the working efficiency; the S-shaped hook can be directly hung on a purline of a net rack through the handheld piece, installation operation is facilitated, the limiting blocks are arranged at the two ends of the transverse support, the lower hook of the S-shaped hook can be directly fixed to the inner side, slipping of the lower hook is avoided, and the safety coefficient of the whole device is improved.

The utility model discloses a large-span navigation hole trestle which comprises two straight approach bridges, a navigation section bridge, a slope section bridge and supporting steel pipe piles, and the two straight approach bridges are located on the two sides of the water surface respectively. The navigation segment bridge is located in the middle of the water surface; the straight approach bridges at the two ends are respectively connected with the two ends of the navigation section bridge through the slope section bridge which is gradually inclined upwards; the thickness of the slope section bridge is larger than that of the straight approach bridge, and the thickness of the navigation section bridge surface is larger than that of the slope section bridge surface; a plurality of sets of supporting steel pipe piles are arranged, each set of supporting steel pipe piles comprises two parallel supporting steel pipe piles, and the multiple sets of supporting steel pipe piles are sequentially supported below the straight approach bridge, the navigation section bridge and the slope section bridge. The large-span navigation hole trestle is arranged on the water and can meet the requirements of navigation and vehicle operation at the same time.

The utility model discloses a kind of temporary passageway convenient to install and fix, including bottom plate, support frame being set to the bottom of bottom plate and two groups of two groups of guardrails being respectively installed in opposite sides of support frame, bottom plate is plywood, support frame and guardrail are all connected by several vertical and horizontal interlaced steel pipes, and every interlaced position of steel pipe is connected by fixed fastener. Use plywood as bottom plate, use steel pipe to make guardrail, utilize construction site existing material, need not transport procurement from outside, reduce material cost, save material transport time, construction material is secondary utilization, reduce building waste discharge;It is connected by fixed fastener, guarantees the structural stability of temporary passageway, the support frame and guardrail built by using steel pipe can guarantee bearing capacity, integrally form a temporary passageway with stability and bearing capacity, improve personnel traffic efficiency, greatly improve construction efficiency, effectively shorten construction period for project.

The utility model belongs to the technical field of aqueduct design in the water conservancy industry, and discloses a prestressed aqueduct pier top connecting structure which comprises transition sections, end rib sections and connecting sections, the transition sections are integrally formed at the two ends of an aqueduct in a pouring mode, and the end rib sections are integrally formed at the outer side ends of the transition sections in a pouring mode. The connecting section is arranged between the nearby end faces of every two adjacent aqueducts, the connecting section and the nearby end rib section are integrally formed in a pouring mode, an expansion joint is arranged in the middle of the connecting section, a water stop unit is arranged at the expansion joint, and the connecting section and the end rib sections are fixedly connected with the pier top. According to the utility model, the permanent seam is directly arranged on the end rib section, and the post-pouring section is replaced by the connecting section arranged on the pier top. The connecting section reinforcing steel bars are not arranged as long as the prestressed groove body section and are independent pouring sections, construction of subsequent procedures is facilitated, meanwhile, a water stop unit is arranged, and the anti-seepage safety is improved.