37 results about "Wide bridge" patented technology

The invention discloses a lightweight spliced bridge vibration monitoring system for cooperative work performance intelligent perception, and belongs to the technical field of bridge structure health monitoring, and the lightweight spliced bridge vibration monitoring system comprises a lightweight targeted sensing subsystem which comprises a plurality of perception assemblies arranged in a targeted manner; the intelligent edge acquisition and transmission subsystem has an independent addressing function and a time synchronization function and is used for preprocessing and lightweight processing; the cloud edge collaborative storage management subsystem performs hierarchical storage, security control and efficient retrieval on the data to form monitoring data; and the cooperative performance perception early warning subsystem realizes state evaluation and graded early warning of the cooperative work performance of the spliced bridge through multi-index fusion. By adopting the lightweight spliced bridge vibration monitoring system for cooperative work performance intelligent perception, the problems of insufficient lightweight and targeting performance, low data processing, transmission and storage efficiency, and inaccurate cooperative performance evaluation, damage positioning and early warning of traditional spliced bridge vibration monitoring are solved.

The utility model provides an ultra-wide large-span composite beam bridge which comprises a foundation, two side piers, two middle piers and a steel concrete composite beam, the steel concrete composite beam is composed of a steel main beam, a UHPC bridge deck slab and concrete, and the steel main beam is erected on the side piers and the middle piers; the thickness of the UHPC bridge deck slab is 6-10 cm, the steel main beam comprises a closed steel box and a cantilever arm, a motor vehicle lane and a pedestrian and non-motor vehicle lane are arranged on the UHPC bridge deck slab, and steel beam bottom plates of the two middle piers are combined with concrete. The utility model provides an ultra-wide and large-span combined beam bridge which can be suitable for a highway-rail combined bridge with the span of more than 200m and the ultra-wide bridge width, the bridge width meets the requirements of two-way eight-lane and two-lane light rails, a pedestrian and non-motorized vehicle lane can be arranged, the utilization efficiency of the bridge is improved, and the beam bridge structure is more attractive; and the development of the ultra-wide and large-span composite beam bridge is promoted.

The utility model discloses a widening bridge connecting device which comprises a widening bridge flange plate, an old bridge flange plate, a filling layer assembly, a pavement layer assembly and a connecting assembly, one side of the widening bridge flange plate is connected with the old bridge flange plate, a gap is formed between the widening bridge flange plate and the old bridge flange plate, the filling layer assembly is arranged in the gap, and the pavement layer assembly is connected with the connecting assembly. The filling layer assembly is used for improving the waterproofness of a gap between the width splicing bridge flange plate and the old bridge flange plate, and the pavement layer assembly is arranged on the upper portion of the width splicing bridge flange plate and the upper portion of the old bridge flange plate and used for improving the pressure resistance of the width splicing bridge flange plate and the old bridge flange plate; the connecting assembly is arranged in the paving layer assembly on the upper portion of the wide bridge flange plate and the upper portion of the old bridge flange plate and used for connecting and fixing the wide bridge flange plate and the old bridge flange plate. According to the utility model, the flange plate of the spliced wide bridge and the flange plate of the old bridge are fixed through the connecting assembly, so that the crack and cracking conditions of a concrete bridge deck pavement layer are effectively reduced, and the strength and durability of the bridge deck are improved.

The invention belongs to the field of bridge maintenance equipment, and particularly relates to a full-coverage maintenance system of a basket type steel structure arch bridge with a large span and a wide bridge floor. A first maintenance car is mounted at the beam bottom, and a second maintenance car is mounted on the arch rib; a first manhole and a first ladder stand are arranged at the top of the main beam for personnel maintenance; and a second manhole is formed in the combined section of the main beam and the arch rib, a second crawling ladder is installed in the combined section, and the second manhole is used for achieving communication of overhaul channels in the arch rib and the main beam. The first maintenance car is of a truss structure, is installed along the bottom of the main beam in a surrounding mode and can move in the longitudinal bridge direction along the bottom of the main beam to achieve maintenance. The second maintenance car can climb and move along the longitudinal bridge direction of the top surface of the arch rib, and part of the structure has rotating and telescopic functions, so that maintenance of the arch rib is realized. The arch rib diaphragm plate is provided with a third manhole and a third ladder stand; fourth manholes are formed in the joints of the arch ribs and the wind braces; and the third manhole and the fourth manhole are used for communicating an arch rib with a maintenance channel in the wind brace. Full-coverage maintenance of the basket type steel structure arch bridge with the large span and the wide bridge floor can be achieved.

The utility model discloses a stress structure device of big cantilever double width ultra wide bridge middle connection becomes whole, it is arranged between two bridges, and every bridge includes box girder and the bridge deck of box girder top, and the inside of every box girder has web, and the bottom of bridge deck has a plurality of stiffening half beam, and every stiffening half beam extends horizontally, and the stiffening half beam on two bridge decks is opposite each other and is connected through post-cast strip and forms a plurality of stiffening main girder, and every stiffening main girder extends horizontally, and a plurality of stiffening main girders are arranged along the length direction of bridge, and through the setting of a plurality of steel truss, and cooperate every steel truss with two webs and corresponding stiffening main girder fixed connection, and every steel truss can participate in bridge deck collaborative stress, and reduce the stress of bridge deck in the middle, can increase the length of bridge deck connection in the middle, and, through the setting of maintenance access, facilitate subsequent structure detection and maintenance, bring the convenience for use, can be widely used.

The invention belongs to the technical field of bridge detection devices, and particularly relates to a wide bridge prestress detection device and method. A fixed frame is fixedly mounted on one side of the vibrating wire strain gauge, a storage groove for the rectangular plate to slide is formed in the fixed frame, a connecting block is fixedly mounted at the top of the rectangular plate, and a multi-stage telescopic plate is fixedly mounted on one surface of the connecting block; through the designed structure, rapid cleaning of a bridge installation area is achieved, meanwhile, the cleaning mechanism and the vibrating wire strain gauge are integrated, cleaning is convenient, meanwhile, carrying can be convenient, a worker does not need to additionally carry a cleaning tool, and the designed structure can be repeatedly and efficiently used. By cleaning the mounting area, when the vibrating wire strain gauge is used for mounting and detecting the prestress of the bridge, data can be accurately transmitted during subsequent detection, and data distortion is effectively avoided.

The invention discloses a line-driven bendable bridge and an operation method thereof. The line-driven bendable bridge comprises a plurality of bendable bridge unit structures, bridge piers and control lines. The bendable bridge unit structure comprises a small frame, a large frame, a wide bridge floor and a narrow bridge floor. All the bendable bridge unit structures are connected in series to form a zigzag arrangement mechanism; flattening or bending of the bendable bridge can be achieved by tightening and loosening different control wires. In the flattened state, vehicles pass through the wide bridge floor, and pedestrians pass through the narrow bridge floor. The amphibious device can be used by selecting different piers, has the advantages of being rapid in unfolding, high in bearing capacity and light in self weight, can meet the rescue requirement when major disasters suddenly occur, ensures that rescue actions are carried out in time, and protects life and property safety of people.

The invention relates to the related technical field of bridge engineering detection, and discloses a wide bridge prestress loss detection system and method, and the system comprises an operation table, the top of the operation table is fixedly provided with a stress sensor, the top of the operation table is fixedly provided with a data acquisition instrument, and the top of the operation table is fixedly provided with a temperature sensor. A circuit box, a displacement sensor and a stretching assembly are fixedly installed at the top of the operation table, a bending assembly is fixedly installed at the top of the stretching assembly, and a supporting assembly is fixedly installed on the outer side of the bending assembly. And a clamping assembly is fixedly mounted at the top of the bending assembly. By adopting the advanced sensing technology, the change of the prestress in the wide bridge can be accurately measured, the loss condition of the prestress can be accurately reflected, the accuracy of a detection result is ensured, the stability and the reliability are good, the detection work is ensured to be smoothly carried out, and the practicability is high.

The invention relates to the field of bridge incremental launching construction, in particular to an integral incremental launching construction method for a large-span ultra-wide bridge floor steel box tied arch bridge arch, which adopts a multi-point synchronous walking type incremental launching method to perform multi-round incremental launching on a beam body. An arch rib assembling support is arranged between the beam body and the arch rib and comprises a plurality of support units, a part of the support units comprise first supporting parts, second supporting parts and third supporting parts, the top ends of the first supporting parts and the top ends of the second supporting parts are connected to the arch rib, and the top ends of the third supporting parts are connected to the beam body. The bottom end of the first supporting part and the bottom end of the second supporting part are both connected to the beam body, and the distance between the top end of the first supporting part and the top end of the second supporting part is smaller than that between the bottom end of the first supporting part and the bottom end of the second supporting part; the third supporting part is located between the first supporting part and the second supporting part, the top end of the third supporting part is connected to the arch rib, and the bottom end of the third supporting part is connected to the beam body. Therefore, the stability of the whole pushing process of the beam and the arch rib is improved.

The utility model discloses a width-spliced bridge front transverse moving track supporting device which comprises a supporting seat, and a plurality of limiting grooves are formed in the top of the supporting seat. The number of the square timbers is multiple, and the lower portions of the multiple square timbers are located in any limiting groove; a reinforcing plate is arranged between every two adjacent square timbers; first baffles which are symmetrically distributed are arranged on the inner side face of the limiting groove in the width direction of the limiting groove, and second baffles which are symmetrically distributed are arranged on the inner side face of the limiting groove in the length direction of the limiting groove; the square timber storage rack has the advantages that square timbers abut against the space defined by the first abutting plate and the second baffle when being placed in the limiting grooves, limitation of the square timbers in the placing process is increased, and the fixing stability of the two square timbers is increased through the reinforcing plates; and a plurality of additionally arranged square timbers can be limited and reinforced respectively, so that the front transverse moving track of the spliced wide bridge can be better supported.

The application discloses a multi-truss type super-wide bridge construction hanging basket, and particularly relates to the technical field of bridge construction, which comprises a bridge main body and a hanging basket main body, the hanging basket main body is arranged at the end of the bridge main body, and the hanging basket main body comprises a forward moving mechanism, and a top bracing mechanism is fixedly installed at the top end of the forward moving mechanism. The application is provided with a bottom bracing mechanism, and is used in cooperation with the forward moving mechanism and the mold assembly, the inner bracing bolt rib is used in cooperation with the inner bottom bracing nut and the inner top bracing nut which are threadedly installed on the outer side of the inner bracing bolt rib, so that the inner middle frame and the inner side frame are supported at the inner middle position, the stability during subsequent concrete pouring is improved, and the inner middle frame and the inner side frame are prevented from being deformed due to the extrusion of the concrete. When the concrete is solidified to form a poured beam section, the outer frame, the inner middle frame and the inner side frame are removed, at this time, the inner bracing bolt rib is fixed in the bridge main body, and the cavity in the bridge main body is assisted to be supported.

The utility model discloses a novel wide bridge connecting expansion device, relate to road traffic technical field, including new abutment, integration layer, bridge deck pavement and C50 steel fiber reinforced concrete, the expansion gap is left between new abutment and old abutment, the top of new abutment and old abutment is provided with integration layer, and the top of integration layer is provided with bridge deck pavement, the top of new abutment has been irrigated with C50 steel fiber reinforced concrete, and C50 steel fiber reinforced concrete inside is provided with reinforced skeleton, the anchor bar is buried on the reinforced skeleton, this device has and through the steel fiber of C50 steel fiber reinforced concrete inside random distribution can effectively hinder the expansion of concrete internal microcrack and the formation of macrocrack, has improved the tensile, bending, impact and fatigue resistance of concrete significantly, has better ductility, and through the water guide pipe can play the water guide effect to the position of waterstop, and it is convenient for drainage.

The utility model discloses a multi-truss type ultra-wide bridge construction hanging basket which comprises a hanging basket body, an elastic protection plate used for achieving an anti-collision protection effect is arranged on the inner wall of the hanging basket body, a storage mechanism is arranged in the hanging basket body and comprises a first limiting plate, a limiting square rod is arranged above the first limiting plate, and a second limiting plate is arranged above the first limiting plate. A plurality of adjustable storage boxes corresponding to the limiting square rods are arranged above the first limiting plate at intervals, and a plurality of limiting separation pipes for limiting the adjustable storage boxes are arranged on the limiting square rods at intervals; according to the hanging basket, tools are stored in a classified mode through mutual cooperation of multiple structures, so that workers do not need to carry many tools, the use experience of a user on the hanging basket is improved, the stored tools can be subjected to height adjustment and posture adjustment, the user can conveniently take the stored tools, and the use experience of the user is improved. And the hanging basket is more humanized to use.

The invention discloses a cable crane for a wide-bridge-floor space main cable suspension bridge and a control method, belongs to the technical field of cable cranes, and solves the technical problem that an existing cable crane cannot meet the hoisting requirement of a wide bridge girder. The cable crane comprises a hoisting truss, a controller and a horizontal detector; the horizontal detector is installed on the hoisting truss, sliding brackets and variable-amplitude driving mechanisms for driving the sliding brackets to reciprocate along the two ends of the hoisting truss are slidably arranged at the bottoms of the two ends of the hoisting truss correspondingly, the bottoms of the sliding brackets are rotationally connected with a walking rack used for walking along a main cable, and horizontal adjusting mechanisms are arranged at the two ends of the sliding brackets correspondingly. A main cable distance measuring device is arranged between the two walking racks, and the controller is electrically connected with the horizontal detector, the main cable distance measuring device, the variable amplitude driving mechanism, the walking racks and the horizontal adjusting mechanism. The variable-amplitude driving mechanism can be controlled to keep the distance between the walking racks consistent with the distance between the main cables, and the horizontal adjusting mechanism is controlled to keep the hoisting truss in a horizontal posture all the time.

The embodiment of the application provides a middle support mechanism and a chassis vehicle which can extend bridge construction work. The middle support mechanism comprises a guide seat, a middle support oil cylinder, a base, a middle support overturning oil cylinder, a support swing arm and an extension swing arm. The guide seat is used to support the inner main beam of the bridge during work and bear the weight of the bridge. The middle support oil cylinder is embedded in the support arm of the guide seat and controls the height of the guide seat through the extension and contraction of the oil cylinder. The base fixes the whole middle support mechanism on the deck of the middle part of the chassis vehicle. The middle support overturning oil cylinder is fixed at one end on the base and at the other end on the double-ear seat of the support swing arm, and the rising or falling of the support swing arm is realized through the extension and contraction of the oil cylinder. The support swing arm is used to support the outer main beam of the bridge during work and is fixed at one end on the base through a bolt, and the rotation function can be realized. The extension swing arm is used to support the outer main beam of the bridge during the work of wider bridges and is connected at one end with the support swing arm through a bolt, and the rotation function can be realized. The middle support mechanism can adapt to the work requirements of wider bridges, is convenient and easy to operate, and ensures the stability and reliability of the work.

The invention relates to the field of through arch bridge construction, in particular to a method for installing a reticular suspender of a large-span super-wide bridge floor steel box tied arch bridge without temporary support under a steel box main beam in some specific environments, which comprises the following steps of: disassembling a plurality of groups of arch rib assembling brackets which are transversely arranged on the arch bridge, and installing suspender cables; the multiple groups of arch rib assembling brackets are gradually disassembled from the middle part of the arch bridge to the two end parts of the arch bridge; the dismounting work of the arch rib assembling support and the mounting work of the suspender cable are alternately carried out. According to the scheme, under the condition that no temporary support exists under the steel box girder, in the suspender installation process, the arch bridge stress and the line type of the steel box tied-arch bridge are controllable, the design expectation is met, and the stability and the safety of the arch bridge can be reliably guaranteed.

The utility model relates to the technical field of waterproof equipment for bridge expansion joints, in particular to a waterproof device for an ultra-wide bridge expansion joint. According to the technical scheme, the waterproof expansion joint comprises a pair of bridge bodies and an expansion joint arranged between the bridge bodies, a waterproof mechanism is installed in the expansion joint, and the waterproof expansion joint further comprises a water collecting mechanism used for receiving water leaking and flowing down from the waterproof mechanism. Through cooperation of the water gathering mechanism, the alarm mechanism, the installation mechanism, the alarm, the water sensor and other structures, leakage of the waterproof device of the ultra-wide bridge expansion joint can be found in time, and therefore measures can be taken immediately to repair or replace the waterproof device such as a sealing rubber strip, the water leakage problem is prevented from being further expanded, and the service life of the waterproof device is prolonged. And the integrity and safety of the bridge structure are protected. Meanwhile, the water leakage problem can be found and repaired in time, the maintenance cost and loss can be reduced, the bad consequences of bridge structure damage, traffic interruption and the like caused by water leakage are avoided, and therefore the maintenance cost and the time cost are saved.

The utility model provides a bridge floor drainage structure which comprises a bridge floor, a plurality of transverse intercepting ditches, a plurality of longitudinal drainage grooves and a sedimentation basin, the bridge floor is provided with a bridge floor cross slope and a bridge floor longitudinal slope, the transverse intercepting ditches are arranged on the bridge floor at equal intervals along the bridge direction, and the transverse intercepting ditches extend along the bridge floor cross slope. A certain included angle is formed between the transverse intercepting ditch and the transverse axis of the bridge floor, the longitudinal drainage groove extends along the longitudinal slope of the bridge floor, the transverse intercepting ditch is communicated with the longitudinal drainage groove, and the sedimentation tank is connected to the tail end of the longitudinal drainage groove in the water flow direction and externally connected with a vertical drainage system of the bridge pier. The transverse intercepting ditches and the design that the transverse intercepting ditches and the transverse axis of the bridge floor form a certain included angle are adopted, bridge floor drainage paths are increased, and drainage efficiency is improved; and the transverse intercepting ditches are in bidirectional gradient, so that the effect of accelerating rainwater is achieved, the distance from rainwater on a wide bridge floor to the intercepting ditches is effectively shortened, and the time of rainwater overflowing on the bridge floor is shortened.

The invention discloses an intelligent monitoring system and method for the whole construction process of a large-span steel box tied arch bridge. According to the system and the method, aiming at key technical problems in integral incremental launching construction, real-time monitoring, accurate analysis and dynamic control of structure line shape, stress, temporary structure stress and multi-point synchronism in the incremental launching process are realized by integrating sensing monitoring, data acquisition, an incremental launching construction finite element model as shown in figure 4 and a feedback control module. Graded early warning and control logic (as shown in Figure 5) in the incremental launching process is particularly constructed, the industrial pain points that wide bridge incremental launching is asynchronous, prone to deviation and high in safety risk are effectively solved, and the automation level, the intelligence level and the safety of incremental launching construction are remarkably improved.

The invention discloses a vertical shear stiffness quantitative identification and safety monitoring evaluation method for a new and old widened bridge joint, and belongs to the field of bridge engineering safety detection and structural performance monitoring. The invention relates to a method for identifying the rigidity of an abutted seam of a widened bridge, which is characterized in that under the excitation of a low-speed vehicle load, the ratio of response time cumulants of quasi-static displacement generated in the midspan of a new bridge and an old bridge and the vertical rigidity of the abutted seam connecting the two have a clear and stable mathematical mapping relationship; and a stable and reliable dimensionless identification index which is directly associated with the abutted seam rigidity is constructed, so that quantitative evaluation of the health state of the abutted seam is realized. The invention discloses a new and old widened bridge joint safety assessment method. The method comprises the following steps: step 1, arranging a new and old widened bridge joint structure performance monitoring system; 2, deploying a signal processing module and a parameter calculation and state evaluation module in a background; and step 3, deploying a display and monitoring early warning module on a client, wherein a manager can see the content of the display and monitoring early warning module.

The utility model discloses a longitudinal wet joint connecting structure for a staggered splicing wide bridge structure, which comprises a first wide bridge, a second wide bridge is arranged on one side of the first wide bridge, and a staggered butt joint fixing mechanism is arranged between the second wide bridge and the first wide bridge. Hoisting mechanisms are arranged at the top ends of the first wide bridge and the second wide bridge, and the staggered butt joint fixing mechanism comprises staggered butt joint assemblies arranged on the inner sides of the first wide bridge and the second wide bridge; by designing the dislocation block A, the dislocation block B, the connecting groove, the connecting block, the limiting groove and the limiting buckle, accurate butt joint limiting of the first wide bridge and the second wide bridge can be achieved, meanwhile, the first wide bridge and the second wide bridge can be firmly positioned in cooperation with the designed positioning hole, the through hole and the positioning rod, and compared with the prior art, the butt joint of the first wide bridge and the second wide bridge is achieved. And the connection work of the first wide bridge and the second wide bridge is greatly facilitated.

The application discloses a hanging basket for large-span and super-wide bridge, and belongs to the technical field of bridge construction, which comprises a hanging basket body, front and rear upper cross beams fixed at the front end and the middle part of the hanging basket body respectively, the front upper cross beam is connected to the front lower cross beam through a front suspender, and the rear upper cross beam is connected to the rear lower cross beam through a rear suspender; a first support is fixed on the front lower cross beam, the first support is hingedly connected to one end of a diagonal bracing beam, the other end of the diagonal bracing beam extends upward and inclines to the side where the front suspender is located, an upright plate is fixed to the upper end of the diagonal bracing beam, a horizontal guide rod is fixed to the upright plate, the guide rod is slidingly arranged in a sliding sleeve fixed on the front suspender, a damping spring is sleeved outside the guide rod, and the two ends of the damping spring are connected with the upright plate and the front suspender respectively; a longitudinal damping device is connected between the front suspender and the rear suspender, and a transverse damping device is arranged between the rear suspender and the rear upper cross beam. The hanging basket can effectively resist the hidden danger of the hanging basket caused by wind force and improve the safety of construction personnel.

The utility model discloses a non-interruption traffic bridge splicing differential settlement prevention device in the technical field of bridge construction, which comprises a splicing width bridge pier, an old bridge pier is arranged on one side of the splicing width bridge pier, a connecting component force plate is connected between the splicing width bridge pier and the old bridge pier, and a web plate is mounted at the top of the connecting component force plate. The upper end of the outer side of the old bridge pier is sleeved with a hoop, the two ends of the web are connected with the widening bridge pier and the hoop respectively, and a plurality of L-shaped anchoring steel bars are embedded in the upper end of the interior of the widening bridge pier. Through the matching arrangement of the connecting component force plates, the L-shaped anchoring steel bars, the web plates and the hoops, synchronous fixation and uniform load distribution of the wide bridge piers and the old bridge piers are achieved, damage to bridge splicing seams caused by differential settlement is effectively prevented, the splicing seams can better bear and disperse loads, the overall bearing capacity is improved, and the service life of the bridge is prolonged. And the traffic safety and comfort of the bridge during operation are ensured, so that the service life and the maintenance period of the bridge are prolonged.

The utility model relates to a supporting device for a bridge erecting machine of a spliced wide bridge, which comprises a supporting frame, the supporting frame comprises a plurality of supporting columns, a plurality of supporting cross beams, a plurality of connecting assemblies and a supporting beam used for supporting the bridge erecting machine, the supporting beam is arranged on the supporting columns along the horizontal direction, one end of the supporting beam is erected on an old bridge floor, and the other end of the supporting beam is erected on the old bridge floor. The bottom ends of the supporting columns are arranged on a cover beam of the spliced wide bridge, the supporting cross beams are arranged between every two adjacent supporting columns in the horizontal direction, and the connecting assemblies are arranged between the supporting columns and the supporting cross beams. By means of the specific structural arrangement of the connecting assembly, the problems that an existing supporting device is too large and not convenient to disassemble subsequently, so that a special tool needs to be arranged for transportation arrangement, construction difficulty is large or the supporting device cannot be used and is difficult to coordinate, and meanwhile construction cost is too high are solved.

Compared with the prior art, the bridge structure applied to nuclear power cold source interception and filtration has the advantages that net bags are arranged between pile foundations, a plurality of pile foundation cross beams below cross beams are transversely arranged, the supporting stability of the cross beams is guaranteed, a plurality of cross beams are longitudinally arranged along longitudinal beams, the pile foundations are connected through the cross beams and the longitudinal beams, and the supporting stability of the cross beams is guaranteed; the transverse beams are arranged in a thickened mode, the extending beams are arranged at the two ends of the thickened transverse beams in an equal-thickness mode, the stability of net bag opening and closing equipment on the extending beams is improved, then the stability of the net bag opening and closing equipment on net bag collecting, releasing and filtering can be improved, and the overall strength of the bridge structure is improved. And moreover, a wide bridge is formed, mechanical equipment such as net bag opening and closing equipment can be conveniently cleaned and maintained, cleaning and transporting vehicles can pass through the net bag, the net bag can be conveniently lifted to be cleaned, and the efficiency is improved.

The utility model discloses a full assembly type steel-concrete combined groove type girder bridge adapting to a wide bridge floor, which relates to the technical field of assembly type buildings and comprises two side girders, a plurality of middle girders, a plurality of section steel cross beams and a prefabricated bridge deck, the two side girders are respectively arranged on two sides of the bridge floor, the middle girders are respectively arranged on two sides of the bridge floor, and the section steel cross beams are respectively arranged on two sides of the bridge floor. The plurality of middle main beams are arranged between the two side main beams; the side main beams and the multiple middle main beams are adopted, the requirement for wide bridge deck building is met, the steel side main beams, the steel middle main beams, the steel profile steel cross beams and the prefabricated bridge deck slabs poured through concrete are adopted, the construction speed of the structure is increased, the assembly rate is increased, the structure is simple and light, and the force transmission path is clear; the multiple middle main beams can effectively share the load borne by the bridge floor, meanwhile, certain convenience is achieved in the construction process through the arrangement mode of the multiple middle main beams, and the main beams with the small size are easier to manufacture, transport and hoist.

The invention relates to a multi-truss type hanging basket for ultra-wide bridge construction and a working method thereof, the multi-truss type hanging basket comprises a gate type supporting frame and a hanging basket body arranged on the gate type supporting frame, the gate type supporting frame comprises supporting legs on two sides and a cross beam connected to the supporting legs on the two sides, and the hanging basket body moves back and forth along the cross beam through a transmission device and a guide device which are arranged on the cross beam; besides, the top end of an output shaft of a double-shaft motor drives a rotating rod and a protruding block to periodically extrude two second movable plates, the two second movable plates are controlled through air pressure to drive two rack plates, a second transmission gear is linked to adjust the angle of a communicating pipe, the dripping direction of lubricating oil is dynamically adjusted according to the gear meshing position, covering is more comprehensive, lubricating is more efficient, and the service life of the lubricating oil is prolonged. Meanwhile, the structure is guaranteed to be cyclically reset through a reset spring, and then abrasion caused by long-term use of the transmission structure is further avoided.

The utility model provides a kind of bridge deck pavement maintenance automatic watering cart, it is related to watering cart technical field, including watering cart body, the bottom of watering cart body is provided with fixed plate, the outer surface of fixed plate is located at center and is equipped with round hole, the inner wall of round hole is rotatably connected with pipeline, one end of pipeline is fixedly connected with first sprinkling pipe, the outer surface of pipeline is fixedly equipped with first gear wheel.The utility model, by setting motor drives first gear wheel rotation to rotate and drive first rotating rod, first rotating rod rotation will drive second rotating rod to move, second rotating rod is extended by moving to first sprinkling pipe, the length of first sprinkling pipe can be rotated and extended according to the width of road surface, so that watering cart can be covered in one watering to the wider bridge deck comprehensively, to improve the working efficiency of automatic watering cart.

The utility model discloses a front landing leg balancing device of a widening bridge frame beam, which comprises symmetrically distributed first steel pipes and symmetrically distributed second steel pipes, an adjusting mechanism is arranged between the first steel pipes and the second steel pipes, the adjusting mechanism comprises an adjusting bolt, a fixed transverse pipe and a movable pipe, the fixed transverse pipe is arranged on the outer wall of the first steel pipe, and the movable pipe is arranged on the outer wall of the first steel pipe. The movable pipe is arranged on the outer wall of the second steel pipe, one end of the movable pipe extends into the fixed transverse pipe, a nut is installed on the outer wall of the fixed transverse pipe, the adjusting bolt is in threaded connection with the nut, and one end of the adjusting bolt can abut against the outer wall of the movable pipe; the movable pipe and the second steel pipe are of an integrated structure, and scale marks are arranged on the movable pipe. The beneficial effects of the utility model are that through the designed adjusting mechanism, the movable pipe can move in the fixed transverse pipe, the distance between the first steel pipe and the second steel pipe is adjusted, and the use convenience is increased.

The utility model discloses an ultra-wide bridge hanging basket structure which comprises hanging sliding rails, the number of the hanging sliding rails is two, hydraulic cylinders are arranged on the upper end faces of the hanging sliding rails, one ends of the two hydraulic cylinders are arranged on a suspension beam, and positioning air cylinders are arranged on the two sides of the outer wall of the suspension beam. Telescopic wires are arranged on the two sides of the outer wall of the suspension beam, one ends of the telescopic wires are connected to the two ends of the containing frame, supporting frames are arranged on the two sides of one end of the suspension beam, supporting bottom plates are fixedly connected to the outer walls of the supporting frames, and adjusting assemblies are arranged on the upper end faces of the supporting bottom plates and comprise hanging basket frames, protective covers and motors. The hanging basket frame is fixedly installed on the supporting bottom plate, protection plates are arranged on the front side and the rear side of the outer wall of the hanging basket frame, a fixing plate is fixedly arranged in the middle of the hanging basket frame, a motor is arranged on the upper end face of the fixing plate, and a protection cover is installed on the outer wall of the motor. And the height of the standing frame can be adjusted, so that a worker can conveniently pour and maintain a bridge section.