CN115595895A - Method for installing reinforcement cage in continuous beam construction - Google Patents

Abstract

The invention discloses a method for installing a reinforcement cage in continuous beam construction, wherein: the installation of the reinforcement cage adopts a cantilever pouring and traveling integrated machine; the cantilever pouring and traveling integrated machine includes a support frame system and a travel system, and the travel system is arranged on the support frame system The lower part: the cantilever pouring and walking integrated machine walks to the front end of the poured continuous beam segment through the walking system, lifts the prefabricated steel cage from the back end of the supporting frame system to the front end, and adjusts the angle, front and rear and left and right of the steel cage The orientation is consistent with the angle, front and rear and left and right orientations of the next continuous beam pouring segment design position, and then lower the reinforcement cage to the design position between the assembled outer molds. The present invention can hoist the prefabricated reinforcement cage to the top of the design position of the next continuous beam pouring segment by adopting the cantilever pouring and walking integrated machine, and then lower it down, which can overcome the long construction period and engineering problems of the scattered reinforcement cage operation. Difficult to guarantee the quality of the problem.

Description

A method for installing reinforcement cages in continuous beam construction

technical field

The invention relates to the technical field of continuous beam pouring construction, in particular to a method for installing a reinforcement cage in continuous beam construction.

Background technique

At present, my country's construction industry is developing rapidly. Prestressed concrete continuous beams have many application advantages, including continuous beams with large structural rigidity, small deformation, and good dynamic performance. Large, crack-resistant and durable, can effectively control the deflection of the structure (even no deflection), save 40-50% of steel, save 20-40% of concrete, especially in long-span structures, it is more economical, therefore, At present, the application of prestressed concrete continuous girder bridge is more and more extensive, and it has become one of the core bridge types used in bridge engineering construction.

The cantilever pouring method is a commonly used method in the construction of continuous beam bridges, but its construction process is complicated, and there are still many construction technical problems to be solved. The existing continuous beam cantilever pouring hanging basket usually uses more manual auxiliary operations, and the construction period of cantilever pouring will be shorter. The longer it is, taking the construction of steel cages as an example, this link is to carry out on-site loose assembly after the continuous beam formwork assembly is completed. The construction period occupied by the steel cage loose assembly of each continuous beam segment is about 2~ 3 days, about 20% of the segmental construction time is taken up, the construction period is long, and because the reinforcement cage scattered work often needs to rely on the experience of the operators, and the site operation space is relatively narrow, and the tools are limited, which often leads to the quality of the reinforcement work. Poor, which further affects the engineering quality of continuous beams; in order to overcome the above-mentioned defects of steel cages, steel cages can be prefabricated in the factory, at the ground position of the construction site, or on the continuous beam section that has been poured, and how Safely lifting the prefabricated steel cage into the continuous beam formwork has become an urgent problem to be solved.

Contents of the invention

The invention discloses a method for installing a reinforcement cage in continuous beam construction. By adopting a cantilever pouring and traveling integrated machine, the prefabricated reinforcement cage can be hoisted to the upper part of the design position of the next continuous beam pouring segment, and then lowered. It can overcome the above-mentioned problems existing in the scattered reinforcement cage operation.

To achieve the above object, the technical solution of the present invention is:

A method for installing a reinforcement cage in continuous beam construction, wherein: the reinforcement cage is installed using a cantilever pouring and traveling integrated machine; the cantilever pouring and traveling integrated machine includes a support frame system and a travel system, and the travel system is set at the lower part of the support frame system for Realize the movement of the supporting skeleton system;

The cantilever pouring and walking integrated machine walks to the front end of the poured continuous beam segment through the walking system, lifts the prefabricated steel cage from the back end of the supporting frame system to the front end, and adjusts the angle, front and rear and left and right orientations of the steel cage The angle of the design position of the next continuous beam pouring segment, the front and rear and left and right directions are consistent, and then the reinforcement cage is lowered to the design position between the assembled outer molds.

Further, before the prefabricated reinforcement cage is hoisted, the cross section placed on the beam surface is perpendicular to the installation cross section, and when hoisted to the front side of the supporting frame system, it is rotated 90° to make the angle of the reinforcement cage consistent with the installation angle.

Further, the cantilever pouring and walking integrated machine also includes a steel cage assembly system, which includes a steel cage lifting track, a hoisting vehicle and a spreader mechanism, the steel cage lifting track is fixed on the upper part of the supporting frame system, and the lifting vehicle It can move back and forth between the front end and the rear end of the supporting frame system along the steel cage hoisting track, and the hoisting vehicle is connected with a spreader mechanism for hoisting the steel cage;

Hoisting the prefabricated reinforcement cage from the rear end of the support frame system to the front end specifically includes: moving the spreader mechanism to the rear end of the support frame system, lifting the reinforcement cage, and moving the reinforcement cage along the reinforcement cage lifting track To the front end of the construction, the spreader mechanism rotates and moves back and forth, left and right, adjust the angle, front and rear and left and right directions of the reinforcement cage to be consistent with the angle, front and rear and left and right directions of the design position, lower the reinforcement cage, and install it to the design position in the continuous beam formwork .

Furthermore, the spreader mechanism includes a rotating spreader, and the angle of rotation is not less than 90°.

Furthermore, the spreader mechanism includes a spreader load-bearing beam, a hoisting piece and a rotating spreader, and at least two of the hoisting vehicles are provided, and the spreader load-bearing beam is connected between them, and the lower part of the spreader load-bearing beam is arranged There is a hoisting piece, which can move laterally along the load-bearing beam of the sling, and a rotating sling is suspended below the sling, and the rotating sling is used for hoisting and rotating the reinforcement cage.

Furthermore, the rotating sling adopts an electric slewing mechanism.

Further, the support frame system includes columns, lower walking beams, upper load-bearing beams and a horizontal connection structure. Two columns, a lower walking beam and an upper load-bearing beam form a support truss, and the two support trusses pass through the horizontal connection structure. connect;

Wherein: the middle part of the upper load-bearing beam is connected to the upper end of the column located at the front side, and a steel cage hoisting track is arranged on the inner side, and the column is a telescopic structure.

Furthermore, in the support frame system, in the support truss enclosed by the column, the lower walking beam and the upper load-bearing beam, there are detachable frame braces and/or frame longitudinal beams connected to between two uprights;

and / or

A detachable frame brace is also connected between the front end of the upper load-bearing beam and the upright at the front side;

and / or

The rear end of the lower walking beam can be connected to the extended section of the lower walking beam, and the extended section of the lower walking beam is connected to the paper part of the column at the rear side with a detachable skeleton brace.

Further, an anti-pressure wheel mechanism is provided between the bottom of the supporting frame system and the poured continuous beam segment, and the anti-pressure wheel mechanism includes a roller pressure wheel, a protective frame, a connecting plate, a connecting rocker and a screw Joint, the length of the roller pinch can match the bottom of the pressing support frame system, the protective frame surrounds the upper and outer sides of the roller pinch, and is connected with the roller pinch through a bearing, The upper part of the connecting plate is connected with the protective frame, and the lower end is rotationally connected with the upper end of the connecting rocker, and the lower end of the connecting rocker is detachably connected with the screw joint, and the screw joint is upwardly opened by a lower port. The internal thread is used to fix the pre-embedded finish-rolled steel in the pre-embedded fixture; the anti-pressure wheel mechanism is used to keep the bottom of the support frame system from tilting forward during the running of the running system and the hoisting of the reinforcement cage.

Further, the traveling system includes a traveling wheel assembly, the traveling wheel assembly includes a traveling drive motor, a transmission, a driving wheel, a driven wheel and an enclosure steel frame, and the travel drive motor is arranged on the enclosure steel frame for The transmission is rotated to provide power, the transmission drives the driving wheel to rotate through the transmission part, and the driving wheel drives the driven wheel to rotate through the transmission part, the driving wheel and the driven wheel are arranged in the enclosure steel frame, and The bearing is connected with the surrounding steel frame, and can be matched and walked on the running track mechanism. The surrounding steel frame is provided with the fork lug of the surrounding steel plate, and the bottom of the supporting frame system is provided with the fork lug of the traveling beam. The fork lug of the guard plate and the fork lug of the traveling beam are connected by a pin shaft.

The installation method of the reinforcement cage in the continuous beam construction described above has the following advantages:

(1) By adopting the present invention, the uniformly prefabricated reinforced cage can be transported and hoisted to the design position in the outer formwork, which saves the time for loose assembly of the reinforced cage, effectively reduces the construction time of a single beam section, and speeds up the progress of the project , Improve the construction quality.

(2) Since the width of the steel cage needs to match the width of the continuous beam section, the width is relatively large. In order to reduce the width of the supporting frame system, the direction of setting the steel cage before hoisting in the present invention is perpendicular to the installation direction, and it is to be hoisted to the support When the front end of the skeleton system is to be installed, it is rotated 90° by the rotating hoist, and then lowered into the continuous beam formwork, which can effectively reduce the width of the supporting skeleton system and improve the safety of construction.

(3) The present invention also sets the column as a telescopic structure, so that the height of the column can be raised when the steel cage is hoisted from the rear end of the supporting frame system to the front end, so as to ensure the smooth passage of the steel cage, and the overall movement of the device for hoisting the steel cage At the same time, the height of the column is reduced, the center of gravity of the device for hoisting the steel cage is lowered, and the safety of the construction is improved.

Description of drawings

Fig. 1 is a front structural schematic diagram of a cantilever pouring integrated machine used in continuous beam segmental construction according to the present invention.

Fig. 2 is a schematic front view of another structural form of the cantilever pouring integrated machine involved in the present invention applied to continuous beam segmental construction.

Fig. 3 is a front view structural schematic diagram of the reinforcement cage assembly system.

Fig. 4 is a left view structural diagram of Fig. 3 (the multi-point hanger structure part is omitted).

Fig. 5 is a left view structural diagram of the multi-point hanger structure in Fig. 2 .

Fig. 6 is a top structural schematic view of the hanger longitudinal beam, the hanger beam and the connecting lugs in Fig. 5 .

Fig. 7 is a structural schematic diagram of the anti-pressure wheel mechanism.

Fig. 8 is a schematic structural diagram of the left view in the middle section of Fig. 7 .

Fig. 9 is a schematic structural view of the traveling wheel assembly.

Fig. 10 is a schematic cross-sectional structural view of the driving wheel in Fig. 9 .

Fig. 11 is an enlarged structural schematic diagram of the fulcrum lifting support mechanism in Fig. 2 .

FIG. 12 is a schematic cross-sectional structure diagram of FIG. 11 .

In the figure, the continuous beam 1, the traveling wheel assembly 2, the drive motor 201, the transmission 202, the driving wheel 203, the driven wheel 204, the fork lugs 205 of the enclosure steel plate, the enclosure steel plate 206, the support fixture 207, the lower travel beam 3, the skeleton Diagonal brace 4, multi-point hanger structure 5, rotating frame 501, flexible suspension unit 502, hanger longitudinal beam 503, hanger beam 504, connecting lug 505, steel cage hook 506, rotating hanger 6, lifting parts 7. Crane 8, steel cage hoisting track 9, upright column 10, upper load-bearing beam 11, steel cage 12, anti-pressure wheel mechanism 13, protective frame 1301, roller pressure wheel 1302, connecting plate 1303, connecting rocker 1304 , screw joint 1305, anchoring lower pin 1306, anchoring upper pin 1307, spreader load-bearing beam 14, traveling beam fork lug 15, running track 16, pre-embedded rebar 17, fulcrum jacking support mechanism 18, jacking distribution beam 1801, jacking jack 1802, jacking lower backing plate 1803.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the conventionally placed position when the product of the invention is used. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or into one body; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

A method for installing a reinforcement cage in continuous beam construction, as shown in Figures 1 and 2, wherein: the installation of the reinforcement cage adopts a cantilever pouring and traveling integrated machine; the cantilever pouring and traveling integrated machine includes a supporting frame system and a traveling system, and the traveling system is set The lower part of the supporting frame system is used to realize the movement of the supporting frame system; the supporting frame system is used to support the hoisting and installation of the steel cage. The installation method includes the following steps: the cantilever pouring and walking integrated machine walks to the front end of the poured continuous beam segment through the walking system, lifts the prefabricated reinforcement cage 12 from the rear end of the supporting frame system to the front end, and adjusts the reinforcement cage 12 The angle, front and back and left and right orientations are consistent with the angle, front and rear and left and right orientations of the next continuous beam pouring section design position, and then lower the reinforcement cage 12 to the designed position between the assembled outer molds.

The outer formwork is explained below. The formwork used for pouring continuous beams includes the outer formwork, inner formwork and bottom formwork. The bottom formwork is located at the bottom of the outer formwork device. The reinforcement cage is set between the outer formworks, and there is a channel in the middle to set the inner formwork. . The prefabrication of the reinforcement cage 12 may be prefabricated in a factory, prefabricated on the ground at the construction site, or intensively processed on the surface of the continuous beam. For the convenience of transportation, when constructing the 1# continuous beam segment, the steel cage 12 is prefabricated on the ground at the construction site and hoisted into the supporting frame system or the front end by tower crane. When constructing the 2# continuous beam segment and subsequent segments When the cantilever pouring and traveling integrated machine travels to the front end of the poured continuous beam segment through the traveling system, the steel cage 12 is transported to the cantilever pouring and traveling integrated machine by a flatbed transporter. The rear end can be hoisted from the rear end of the supporting frame system to the front end.

Further, since the width of the reinforcement cage 12 needs to match the width of the continuous beam segment, the width is relatively large. In order to minimize the width of the supporting frame system, the prefabricated reinforcement cage is placed on the cross-section of the beam surface before hoisting. The surface is perpendicular to the installation cross-section, and when it is hoisted to the front side of the supporting frame system, it needs to be rotated 90° to make the angle of the reinforcement cage consistent with the installation angle.

Further, the cantilever pouring and walking integrated machine also includes a steel cage assembly system, including a steel cage lifting track 9, a hoisting vehicle 8 and a spreader mechanism, the steel cage lifting track 9 is fixed on the upper part of the supporting frame system, and the lifting vehicle 8 can Move back and forth between the front end and the rear end of the supporting frame system along the steel cage hoisting track 9 , and the hoisting vehicle 8 is connected with a spreader mechanism for hoisting the steel cage 12 . Since the reinforcement cage lifting track 9 is provided, the reinforcement cage 12 can be hoisted by the spreader mechanism, and then the hoisting vehicle 8 is used to walk from the rear end of the support frame system to the front end, so that the reinforcement cage can be realized in the support frame system. move. For the reinforcement cage assembly system, the method for hoisting the prefabricated reinforcement cage from the rear end of the support frame system to the front end specifically includes: moving the spreader mechanism to the rear end of the support frame system, hoisting the reinforcement cage 12, and placing the reinforcement cage The cage 12 moves to the front end of the construction along the steel cage lifting track 9, the spreader mechanism rotates and moves back and forth, left and right, adjust the angle, front and rear and left and right directions of the steel cage 12 to be consistent with the angle, front and rear and left and right directions of the design position, and lower Reinforcement cages, installed to design positions in continuous beam formwork.

Furthermore, in order to realize the rotation of the reinforcement cage 12, the spreader mechanism includes at least a rotating spreader 6, and the angle of rotation is not less than 90°. The reinforcement cage 12 is rotated 90° by the rotating hoist 6, and then lowered into the continuous beam formwork, which can effectively reduce the width of the supporting frame system and improve the safety of construction.

Furthermore, this embodiment provides a spreader mechanism that is more convenient to realize the purpose of the present invention. As shown in FIG. 3 and FIG. There are at least two heavy vehicles 8, and the load-bearing beam 14 of the spreader is connected between them. The hoisting part 7 is arranged under the load-bearing beam 14, and the rotating sling 6 is suspended under the slinging part 7. The rotating sling 6 is used for hoisting And rotate the steel cage 12, the steel cage hook 506 upper end is connected with the hanger longitudinal beam 503. For the hoisting vehicle 8, in the present embodiment, due to the heavy weight of the steel cage 12, the steel cage hoisting track 9 can be provided with 2, each upper load-bearing beam 11 inboard is provided with one, and the hoisting vehicle 8 can be provided with 4 vehicles, the hoisting vehicles 8 on the same track are connected with the connecting longitudinal beams of the hoisting vehicles, and the connecting longitudinal beams of the hoisting vehicles are connected as a whole through the horizontal spreader load-bearing beam 14, and the spreader load-bearing beam 14 and the hoisting parts 7 connection, the hoisting part 7 can move laterally along the load-bearing beam 14 of the spreader. This structure can adopt an existing truss crane, or a hoisting structure similar to that of a gantry crane, or a hoist crane with a driving structure to drive the hoist Hanging moves left and right, and as the hoisting part 7, inevitably, the function of lowering and promoting the steel cage 12 can also be completed.

Furthermore, the rotary hoist 6 adopts an electric slewing mechanism. A common electric rotary mechanism is a mechanism in which the motor drives the worm, the worm drives the turbine to rotate, and then drives the rotating body to rotate. The electric rotary mechanism is a prior art, and will not be described in detail here.

Preferably, the support frame system includes a column 10, a lower walking beam 3, an upper load-bearing beam 11 and a horizontal connection structure, two columns 10, a lower walking beam 3 and an upper load-bearing beam 11 enclose a support truss, specifically , the upright column 10 is parallel and vertically arranged, the upper end is connected with the upper load-bearing beam 11, and the lower end is connected with the lower walking beam 3, and some sections of the upper load-bearing beam 11 and 3 sections of the lower walking beam are surrounded by the upright column 10 to form a supporting truss. The trusses are connected by a horizontal connection structure, and the supporting trusses are square. The horizontal connection structure can be connected between the columns 10, and/or between the upper load-bearing beams 11, and/or between the lower walking beams 3, and only two The support truss can be fixed as a whole, because the pressure on the hoisting steel cage at the front end of the support frame system is greater, therefore, preferably, the upper front beam is connected to the front ends of the two upper load-bearing beams 11, and the upper front beam is connected to the front ends of the two front columns. The front of the 10 lower part is also connected with the lower rear beam to better ensure the stability of the front side of the supporting frame system. In order to ensure the stability and support strength of the supporting frame system, in the supporting truss surrounded by the column 10, the lower walking beam 3 and the upper load-bearing beam 11, a detachable frame brace 4 and/or frame longitudinal beams are provided to connect the two Between the uprights 10, a preferred mode is shown in the figure of this embodiment, the middle part of the uprights 10 is connected with a skeleton longitudinal beam, and the skeleton brace 4 is connected between the top of the upright 10 and the middle part of the skeleton longitudinal beam, And between the bottom end of the column 10 and the middle part of the skeleton longitudinal beam. In order to prevent the steel cage 12 from being blocked by the support frame system when hoisting and lowering, the middle part of the upper load-bearing beam 11 is connected to the upper end of the column 10 on the front side, that is, the front end of the upper load-bearing beam 11 protrudes outside the column 10 on the front side, which is To ensure the support strength and stability of the upper load-bearing beam 11, a detachable frame brace 4 can also be connected between the front end of the upper load-bearing beam 11 and the column 10 on the front side; in order to ensure the balance of the entire support frame system, The lower walking beam extension can also be connected with the lower walking beam 3 rear end, and can be anchored by bolts between the lower walking beam extension and the lower walking beam 3, that is, the structure shown in Figure 2, the lower walking beam extension and the rear A detachable frame brace 4 is connected between the side columns 10 . For the detachable connection mode in the support frame system, bolt connection can be used to facilitate disassembly and assembly.

Preferably, the column 10 is a telescopic structure. The prefabrication of the reinforcement cage 12 can be completed at a fixed position above the continuous beam section, and there is still a certain distance between the entire device for hoisting the reinforcement cage 12 and running to the next pouring segment. , reduce the height of the column 10, and lower the center of gravity of the cantilever pouring and walking machine, which can improve the safety of construction, and when the reinforcement cage 12 is hoisted from the back end of the supporting frame system to the front end, the height of the column 10 can be raised to ensure that the reinforcement cage 12 passed smoothly without being blocked by the supporting frame system. For the telescopic structure of the column 10, it can be two casing structures, such as including an upper column segment and a lower column segment, and the lower end of the upper column segment is sleeved on the upper periphery of the lower column segment, and is fixed by bolts. When the height of the column 10 needs to be adjusted, the bolts are removed, and the upper column section is moved up or down. After the movement is completed, it can be fixed with the bolts. Of course, other forms that are convenient for expansion and contraction can also be adopted. The expansion and contraction structure of the columnar object is the existing technology, which will not be described in detail here. When the frame brace 4 is arranged between the columns 10, in order to adapt to the different heights of the columns 10, the frame brace 4 is also set to be detachable, and the connection between the frame brace 4 and the column 10 is connected by bolts, according to the column 10 The height can be replaced by a skeleton brace 4 of appropriate length, or in another form, the skeleton brace 4 can also adopt a telescopic structure. For the structure in which the frame brace 4 shown in the figure of this embodiment is connected between the top of the column 10 and the middle part of the frame longitudinal beam, and between the bottom end of the column 10 and the middle part of the frame longitudinal beam, and the column 10 adopts a sleeve type , when adjusting the height of the column 10, the skeleton longitudinal beam is connected with the upper column section, therefore, the length of the skeleton diagonal brace 4 above the skeleton longitudinal beam does not need to be adjusted, only the skeleton diagonal brace 4 below the skeleton longitudinal beam needs to be adjusted. For the above-mentioned support frame system, this embodiment provides a specific setting method for the steel cage lifting track 9. The steel cage lifting track 9 is arranged on the inner side of the upper load-bearing beam 11. In this embodiment, the upper load-bearing beam 11 adopts a section It is an L-shaped box girder, as shown in FIG. 3 , the bottoms of the L-shaped box girders of the two upper load-bearing beams 11 are arranged opposite to each other to provide support for the steel cage lifting track 9 . In this way, the existing supporting frame system can be fully utilized.

Further, due to the heavy weight of the steel cage, the front end of the cantilever walking integrated machine will bear greater gravity during hoisting. An anti-pressure wheel mechanism is arranged between the continuous beam segments. For the supporting frame system of this embodiment, an anti-pressure wheel mechanism is arranged between the lower walking beam 3 and the poured continuous beam 1 segment, as shown in Figure 7 As shown in FIG. 8 , the anti-press wheel mechanism includes a roller press wheel 1302 , a protective frame 1301 , a connecting plate 1303 , a connecting rocker 1304 and a screw joint 1305 , and the length of the roller press wheel 1302 can match the pressing down of the walking beam 3 , the protective frame 1301 surrounds the top and outside of the roller pinch wheel 1302, and is connected with the roller pinch wheel 1302 through a bearing, the upper part of the connecting plate 1303 is connected with the protective frame 1301, and the lower end is rotationally connected with the upper end of the connecting rocker 1304. The lower end of the rocker 1304 is detachably connected to the screw joint 1305, and the screw joint 1305 is provided with an internal thread upwards from the lower port to fix the pre-embedded finish-rolled steel in the pre-embedded fixture. Roller pressing wheels 1302 are set to press down the walking beam 3. When the hoisting device needs to move forward, since the roller pressing wheels 1302 can rotate, it can also ensure that the cantilever pouring and walking integrated machine can move forward efficiently under low frictional resistance. A protective frame 1301 is provided to protect the roller pinch wheel 1302 from being damaged by rainwater and dust. The protective frame 1301 may include an upper sealing plate and a side gusset plate. The two sides of the upper sealing plate are respectively connected with the side gusset plates. The pressure roller 1302 is located in the space surrounded by the upper sealing plate and the side gusset, and the two ends are respectively connected to the side gusset through bearings. The side gusset provides support for the rotation of the roller pressure wheel 1302, and can cooperate with the upper sealing plate to fix It is more preferable that the protective frame 1301 also includes a front side plate and a rear side plate, and the upper sealing plate, the side gusset plate, the front side plate and the rear side plate are connected from the top and the side of the roller pressing wheel 1302. Surrounding the roller pinch wheel 1302, there is a space for the roller pinch wheel 1302 to press the lower walking beam 3 below, and the specific side gusset, its cross-section is preferably set to an L shape, and the space between the two side gussets The shortest distance is greater than the width of the structure to be fixed, and the distance between the bottom end and the upper sealing plate is greater than the height of the structure to be fixed, so that the roller pinch wheel 1302 can be prevented from slipping and the bearing can be better supported. In this embodiment, the roller pinch wheel 1302 is a cast steel forged roller, and the protective frame 1301 is made of steel plate. There is a gap between the rotating surface of the roller pinch wheel 1302 and the upper sealing plate to ensure that the bearing plays a supporting role. At the same time, the rolling friction resistance is reduced, and at the same time, it is also ensured that the surface of the roller pressing wheel 1302 contacting the structure to be fixed maintains a good lubrication coverage to reduce contact resistance. For the connection mode of the connection plate 1303 , this embodiment also provides a preferred mode, the upper part of the connection plate 1303 is connected to the protection frame 1301 , and a through hole is provided to accommodate the roller pinch wheel 1302 to pass through. Combined with the structure of the protective frame 1301 described above, the upper edge of the connecting plate 1303 is connected to the bottom surface of the upper sealing plate, and the upper front and rear edges are respectively connected to the front side plate and the rear side plate, so that the connecting plate 1303 can be better fixed. As for the way in which the connecting plate 1303 is rotationally connected to the upper end of the connecting rocker 1304, in this embodiment, the lower end of the connecting plate 1303 is provided with a pin hole of the connecting plate 1303, and the upper end of the connecting rocker 1304 is also provided with a pin hole on the rocker. The upper pin hole of the plate 1303 and the upper pin hole of the rocker are pierced with an anchor pin shaft 1307 or an upper bolt so that the connecting plate 1303 and the connecting rocker 1304 are connected together. With this rotating connection, the lifting device can be moved forward. During the process, or when there is a small angle of forward inclination during the hoisting construction process, the rotating joint can also adjust a certain angle adaptively, and keep the downward verticality of the connecting rocker 1304, and the choice of using the anchor pin 1307 can be more accurate. Good to meet this requirement, and when using the anchoring upper pin 1307, the anchoring upper pin 1307 is connected with the connecting plate 1303 and the connecting rocker 1304 through bearings, so that it can greatly ensure that the anti-pressure mechanism reduces the pressure when the downward force is applied. Dragged action trend. For the detachable connection between the lower end of the connecting rocker 1304 and the screw joint 1305, the lower end of the connecting rocker 1304 is provided with a lower pin hole of the rocker, and the joint part is provided with a joint pin hole, and the lower pin hole of the rocker and the joint pin hole pass through. An anchoring lower pin shaft 1306 or lower bolt is provided to make the connecting rocker 1304 and the joint part fixedly connected together. For the joint part, the specific structure adopted in this embodiment includes a horizontal steel plate and two vertical steel plates. The gap between them can be matched and inserted into the lower end of the connecting rocker 1304. The vertical steel plate is provided with a joint pin hole corresponding to the position of the lower pin hole of the rocker, so that the connection with the connecting rocker 1304 can be better stabilized. Here, the The lower bolts are easier to disassemble. By adopting the above-mentioned technical solution of the anchoring mechanism 5, even during the moving process of the lifting device, the anchoring of the running support mechanism 6 can be realized so that it will not overturn forward, and further prevent the lifting device from overturning forward. More preferably, two sets of connecting plates 1303 are provided, which are symmetrical with respect to the vertical center line of the protection frame 1301 , and the distance between the connecting plates 1303 is greater than the width of the running support mechanism 6 . In this embodiment, the connecting plate 1303 is located on the inner side of the side gusset plate. Each group of connecting plates 1303 preferably includes two connecting plate 1303 units, and there is a gap in the middle to accommodate the insertion of the upper end of the connecting rocker 1304, so that it can be connected from the connecting plate 1303. Both sides of the rocker 1304 clamp the connecting rocker 1304 to prevent the structure to be fixed from colliding and damaging the connecting rocker 1304, prolong the service life of the anchoring device, and better ensure the stability of the connection. For the anchoring process, specifically: when pouring continuous beam section 1, the pre-embedded nuts and pre-embedded rebar 17 are in the continuous beam section 1, and the upper end of the pre-embedded rebar 17 protrudes from the continuous beam section 1. When pouring the next continuous beam 1 section, the cantilever pouring and walking integrated machine moves to the top of the embedded rebar 17, presses the roller pinch wheel 1302 on the lower walking beam 3, and releases the connection between the screw joint 1305 and the connecting rocker 1304 , tighten the screw joint 1305 to the upper end of the rebar, rotate the connecting rocker 1304, and make the lower pin hole of the rocker correspond to the position of the joint pin hole, and fix the connecting rocker 1304 and the screw joint 1305 with the anchor lower pin 1306 or the lower bolt Together, the overall anchoring of the cantilever pouring and walking integrated machine is completed. When it is necessary to adjust the anchoring position of the anti-pressure wheel mechanism, release the connection between the screw joint 1305 and the connecting rocker 1304, unscrew the screw joint 1305, and adjust the anti-pressure wheel mechanism and/or the cantilever pouring and walking integrated machine to a suitable position. Can. In the process of running and hoisting the steel cage, the anti-pressing wheel mechanism can be used to keep the bottom of the supporting frame system from tilting forward. In this embodiment, the length of the roller pressing wheel presses down the walking beam 3 to maintain the entire supporting frame. The system does not lean forward.

Furthermore, the running system includes a running wheel assembly 2, which can directly use multiple rolling wheels. In order to reduce the height of the entire lifting device, this embodiment also provides a preferred structure, combined with Figures 9 and 10 As shown, the traveling wheel assembly 2 includes a traveling drive motor 201, a speed changer 202, a driving wheel 203, a driven wheel 204 and an enclosure steel frame 206, and the travel drive motor 201 is arranged on the enclosure steel frame 206, and the enclosure steel frame 206 is for walking The driving motor 201 provides support, and the walking driving motor 201 provides power for the rotation of the transmission 202. The transmission 202 drives the driving wheel 203 to rotate through the transmission part, and the driving wheel 203 drives the driven wheel 204 to rotate through the transmission part. The transmission part can be a belt or a sprocket wheel, according to As the actual situation chooses, the transmission 202 can be selected as a gear or sprocket structure with a smaller radius than the driving wheel 203 . The driving wheel 203 and the driven wheel 204 have the same radius, are arranged in the enclosure steel frame 206, and are connected with the enclosure steel frame 206 by bearings, the enclosure steel frame 206 can be set to a square, and keep a certain gap with the running track mechanism 3, It can provide protection for the driving wheel 203 and the driven wheel 204, and at the same time provide supporting force for the bearings connected to the rotating shafts of the driving wheel 203 and the driven wheel 204. The driving wheel 203 and the driven wheel 204 can match and walk on the walking track mechanism 3. The protective steel frame 206 is rotatably connected with the lower traveling beam 3 . Each track is matched with a driving wheel 203 and a driven wheel 204, two parallel driving wheels 203 and two driven wheels 204 are arranged on the two tracks, and each walking support mechanism 6 can select the driving wheel assembly 4 as needed. Quantity, through the structure of the preferred traveling wheel assembly 4, can guarantee the supporting force to the above structures of the traveling support mechanism 6, and ensure the stability of movement. Since the walking support mechanism 6 may be a frame structure, it will have a tendency to tilt outward due to gravity when the steel cage 12 is lowered. The upper end of the fixture 207 is connected with the enclosure steel frame 206, and the lower end extends to the outside of the track. The bit post snaps under the I-beam flange. More preferably, the enclosure steel frame 206 is provided with enclosure steel frame fork ears 205, and the lower traveling beam 3 is provided with travel beam fork ears 15, and the enclosure steel frame fork ears 205 and the travel beam fork ears 15 are passed through pins. shaft connection. With this pin connection method, when the hoisting device is moving forward, or when there is a slight angle of forward inclination during the hoisting construction process, the pin connection can also be adjusted to a certain angle adaptively to prevent the The travel wheel assembly at the rear end has come off the track.

In order to ensure that the cantilever pouring and walking integrated machine runs according to the predetermined route, the running system also includes a running track 16, which includes a track 1601, track connecting beams and beam surface supporting pad beams 1602, wherein the beam surface supporting pad beams 1602 are spaced parallel to each other. Setting, laying along the moving direction of the construction equipment, two tracks 1601 are provided, parallel to each other, vertically arranged on the beam surface to support pad beams 1602, and track connecting beams are connected at intervals between the tracks 1601, and the track connecting beams connect the tracks 1601 to form As a whole, since the beam surface of the continuous beam 1 will have unevenness, the beam surface supporting pad beam 1602 is laid to maintain the smoothness of the running track 16, and the running track 16 provides a running track for the running wheel assembly 2. In this embodiment, four sets of running wheel assemblies 2 are matched under a lower running beam 3, and each two groups are parallel to each other to maintain the balance of the lower running beam 3. Two sets of running wheel assemblies 2 that are parallel to each other run on the same On the two tracks 1601 of the running track 16 , and each cantilever pouring and walking integrated machine has two lower walking beams 3 , which also match the two running tracks 16 . In this embodiment, the track 1601 is welded by double I40 I-beam positioning, the track connecting beam is made of channel steel, and the two ends are welded to the track 1601. The running track 16 can be assembled in multiple sections, and the front and rear ends of the running track 16 All are provided with track connectors, and the 16 groups of running tracks can be put together by fixing the track connectors with bolts. The front end of the running track 16 is preferably equipped with a stopper to prevent the running wheel assembly 2 from running beyond the designed position.

Preferably, this embodiment is also provided with a fulcrum lifting support mechanism 18. The fulcrum lifting support mechanism 18 includes a jacking jack 1802. The fixed end of the jacking jack 1802 is connected to the front end of the bottom surface of the supporting frame system. In this embodiment, it is It is connected with the front end of the bottom surface of the lower walking beam 3. Since the front end of the cantilever pouring and walking integrated machine hoisted the reinforcement cage 12, which was heavy, the cantilever pouring and walking integrated machine showed a tendency to lean forward, and by lifting the jack 1802, an upward force could be applied to the front end of the supporting frame system to slow down the cantilever pouring The overall forward trend of the walking and walking machine. The fixed end of the jacking jack 1802 is connected to the support frame system 6. When the cantilever pouring and traveling integrated machine stops moving forward, the piston of the jacking jack 1802 is extended to apply an upward force. When the cantilever pouring and traveling integrated machine moves, the jack The piston of lifting jack 1802 is shortened, does not affect the movement of walking wheel assembly 2. More preferably, this embodiment also provides a fulcrum lifting support mechanism 18 capable of stabilizing the front end of the cantilever pouring and walking integrated machine, as shown in Fig. 11 and Fig. 12 , it also includes a jacking distribution beam 1801 and a jacking lower backing plate 1803, there are at least two jacking jacks 1802, the top of the fixed end is connected to the jacking distribution beam 1801, and the bottom of the telescopic end is connected to the jacking lower backing plate 1803, that is, two or more jacking jacks 1802 The top surface is connected by lifting the distribution beam 1801, the bottom end is connected by lifting the lower backing plate 1803, and the connection with the support frame system is realized by lifting the distribution beam 1801 on the bottom surface, and the lifting force of the lifting jack 1802 is upward Through the jacking distribution beam 1801, it is evenly transmitted to the walking support mechanism 6 for the jacking, and the jacking lower backing plate 1803 can be matched and buckled on the top of the running track 16, as shown in the figure, it can be the jacking lower backing plate On both sides of the 1803, there are lower backing plate positioning parts protruding downwards. The distance between the two lower backing plate positioning parts can be matched and buckled on the top of the running track mechanism 3, which can prevent deviation and at the same time move the running track The supporting force of 16 is transmitted to jacking jack 1802 evenly. The fulcrum jacking support mechanism 18 also has the function of protecting the traveling wheel assembly 2 at the same time, preventing all the working loads from being stressed at the traveling wheel assembly 2 .

In order to ensure that the steel cage is not easily deformed during the hoisting process, this embodiment also adopts a multi-point hanger structure 5 for the lifting of the steel cage. 5, the multi-point hanger structure 5 includes a hanger beam 504, a hanger longitudinal beam 503, a connecting lug 505, a flexible suspension unit 502, a swivel frame 501 and a steel cage hook 506, and the hanger beam 504 is at least provided with Two, and connected by multiple hanger longitudinal beams 503, the hanger beam 504 is provided with connecting lugs 505, and at least four connecting lugs 505 are arranged symmetrically with respect to the longitudinal center line of the hanger beam 504, and through flexible suspension The hanging unit 502 is connected with the rotating frame 501 , the rotating frame 501 is connected with the rotating hanger 6 , the upper end of the reinforcement cage hook 506 is connected with the hanger stringer 503 , and the lower end is used to hook the reinforcement cage 12 . The rotating hanger 6 rotates, driving the rotating frame 501 to rotate, and the rotating frame 501 drives the hanger beam 504 and the hanger longitudinal beam 503 to rotate, and then drives the steel cage 12 to rotate. There are 14 connection lugs 505 shown in this embodiment, and each hanger beam 504 is connected with 7, of which, there is one in the middle of the hanger beam 504, relative to the longitudinal center line of the hanger beam 504, each side There are three sets, which are arranged symmetrically, wherein the three connecting lugs 505 on the same side are respectively connected to one end of the corresponding side of the swivel frame 501 through steel chains or steel bars, and the middle one connecting lug 505 is connected through steel chains or steel bars. The steel bar is connected to the middle of the corresponding side of the swivel frame 501 , and the steel chain or steel bar is the flexible suspension unit 502 . Through the multi-point hanger structure 5, the problem of deformation of the steel cage 12 during the hoisting process can be avoided, and at the same time, the problem of uneven hoisting force of the steel cage 12 during the hoisting process can be solved.

Claims (10)

1. A method for installing reinforcement cages in continuous beam construction, characterized in that: The installation of the reinforcement cage adopts the cantilever pouring and traveling integrated machine; the cantilever pouring and traveling integrated machine includes the support frame system and the travel system, and the travel system is set at the lower part of the support frame system to realize the movement of the support frame system; The cantilever pouring and walking integrated machine walks to the front end of the poured continuous beam segment through the walking system, lifts the prefabricated steel cage from the back end of the supporting frame system to the front end, and adjusts the angle, front and rear and left and right orientations of the steel cage The angle of the design position of the next continuous beam pouring segment, the front and rear and left and right directions are consistent, and then the reinforcement cage is lowered to the design position between the assembled outer molds. 2. the installation method of reinforcement cage in the continuous beam construction according to claim 1, is characterized in that: Before hoisting the prefabricated reinforcement cage, the cross-section placed on the beam surface is perpendicular to the installation cross-section. When hoisting to the front side of the supporting frame system, rotate 90° to make the angle of the reinforcement cage consistent with the installation angle. 3. the installation method of reinforcement cage in the continuous beam construction according to claim 1, is characterized in that: The cantilever pouring and walking integrated machine also includes a reinforcement cage assembly system, which includes a reinforcement cage lifting track, a hoisting vehicle and a spreader mechanism. The hoisting track of the steel cage moves back and forth between the front end and the rear end of the supporting frame system, and the hoisting vehicle is connected with a spreader mechanism for hoisting the steel cage; Hoisting the prefabricated reinforcement cage from the rear end of the support frame system to the front end specifically includes: moving the spreader mechanism to the rear end of the support frame system, lifting the reinforcement cage, and moving the reinforcement cage along the reinforcement cage lifting track To the front end of the construction, the spreader mechanism rotates and moves back and forth, left and right, adjust the angle, front and rear and left and right directions of the reinforcement cage to be consistent with the angle, front and rear and left and right directions of the design position, lower the reinforcement cage, and install it to the design position in the continuous beam formwork . 4. the installation method of reinforcement cage in the continuous beam construction according to claim 3, is characterized in that: Support frame system, which includes columns, lower walking beams, upper load-bearing beams and horizontal connection structures. Two columns, one lower walking beam and one upper load-bearing beam form a support truss, and the two supporting trusses are connected through a horizontal connection structure; Wherein: the middle part of the upper load-bearing beam is connected to the upper end of the column located at the front side, and a steel cage hoisting track is arranged on the inner side, and the column is a telescopic structure. 5. the installation method of reinforcement cage in the continuous beam construction according to claim 3, is characterized in that: The spreader mechanism includes a rotating spreader, and the angle of rotation is not less than 90°. 6. according to the installation method of steel cage in the continuous beam construction described in claim 3 or 5, it is characterized in that: The spreader mechanism includes a spreader load-bearing beam, a hoisting piece and a rotating spreader, and at least two of the hoisting vehicles are arranged, and a spreader load-bearing beam is connected between them, and a hoisting piece is arranged under the spreader load-bearing beam, The sling can move laterally along the load-bearing beam of the sling, and a rotating sling is suspended below the sling, and the sling is used for hoisting and rotating the reinforcement cage. 7. according to the installation method of steel cage in the continuous beam construction described in claim 5 or 6, it is characterized in that: The rotating sling adopts an electric slewing mechanism. 8. the installation method of reinforcement cage in the continuous beam construction according to claim 4, is characterized in that: In the support frame system, in the support truss surrounded by the column, the lower walking beam and the upper load-bearing beam, there are detachable frame braces and/or frame longitudinal beams connected between the two columns between; and / or A detachable frame brace is also connected between the front end of the upper load-bearing beam and the upright at the front side; and / or The rear end of the lower walking beam can be connected to the extended section of the lower walking beam, and the extended section of the lower walking beam is connected to the paper part of the column at the rear side with a detachable skeleton brace. 9. the installation method of reinforcement cage in the continuous beam construction according to claim 1, is characterized in that: An anti-pressure wheel mechanism is provided between the bottom of the supporting frame system and the poured continuous beam segment, and the anti-pressure wheel mechanism includes a roller pressure wheel, a protective frame, a connecting plate, a connecting rocker and a screw joint. The length of the roller pinch can match the bottom of the pressing support frame system, the protective frame surrounds the upper and outer sides of the roller pinch, and is connected with the roller pinch through a bearing, and the connection The upper part of the plate is connected with the protective frame, and the lower end is rotationally connected with the upper end of the connecting rocker, and the lower end of the connecting rocker is detachably connected with the screw joint, and the screw joint is provided with an internal thread from the lower port upwards. The pre-embedded finish-rolled steel used to fix the pre-embedded fixture; In the process of running and hoisting the reinforcement cage of the walking system, the anti-pressure wheel mechanism is used to keep the bottom of the supporting frame system from tilting forward. 10. the installation method of reinforcement cage in the continuous beam construction according to claim 1, is characterized in that: The traveling system includes a traveling wheel assembly, the traveling wheel assembly includes a traveling drive motor, a transmission, a driving wheel, a driven wheel and an enclosure steel frame, and the travel drive motor is arranged on the enclosure steel frame to rotate for the transmission Provide power, the transmission drives the driving wheel to rotate through the transmission part, and the driving wheel drives the driven wheel to rotate through the transmission part. The driving wheel and the driven wheel are arranged in the enclosure steel frame, and are connected to the The enclosure steel frame is connected and can be matched to walk on the running track mechanism. The enclosure steel frame is provided with enclosure steel fork lugs, and the bottom of the support frame system is provided with traveling beam fork lugs. The enclosure steel plate fork lugs It is connected with the fork lug of the traveling beam through a pin shaft.

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