Bridge cantilever construction hanging basket and construction method thereof

Abstract

The invention relates to a bridge cantilever construction hanging basket and a construction method thereof, and belongs to the technical field of bridge construction equipment.The bridge cantilever construction hanging basket comprises a main truss piece, the main truss piece comprises a first connecting section used for installing a through hanging basket and a second connecting section detachably connected with the first connecting section, and when first blocks on the two sides of a bridge zero block are synchronously constructed, the second connecting section is detachably connected with the first connecting section; the first connecting sections are arranged in pairs and connected with each other, and when subsequent sections connected with the first bridge block are constructed, the first connecting sections and the second connecting sections are connected with each other. As the main truss piece adopts a spliced two-section truss structure, and the second connecting section at the tail part is detachably connected with the first connecting section, the main truss piece is convenient to disassemble and assemble, when a zero block of the continuous beam is short and two main truss pieces cannot be arranged at the same time for first block construction, the second connecting section at the tail part of the main truss piece can be disassembled, and the first connecting sections of the main truss pieces at the two ends are connected in a tail-to-tail manner; and the application range is wider, the construction efficiency can be improved, and popularization and application values are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction equipment, and in particular to a bridge cantilever construction hanging basket and a construction method thereof. Background Art

[0002] The hanging basket is the main equipment in the construction of bridge cantilever. The commonly used hanging basket structures include triangular hanging basket, diamond hanging basket, bowstring hanging basket, etc. The main load-bearing structure of these forms of hanging baskets is set on the top of the beam body, which is a top-bearing hanging basket. This type of hanging basket has a heavy deadweight, many reserved holes in the box beam, a high risk of overturning, and low travel efficiency. The steel bars cannot be hoisted as a whole and can only be tied on site, which is difficult to operate and affects the construction period.

[0003] The bottom-supported hanging basket can solve the above problems. The commonly used bottom-supported hanging basket currently adopts a side truss, and its load-bearing truss is placed on the side of the box beam, and is hung on the top surface of the box beam by a C-shaped hook, and runs on the top surface of the box beam. However, the existing bottom-supported hanging basket also has disadvantages in construction, as follows:

[0004] The C-hook beam is placed flat on the beam surface, and workers need to use a ladder to pass through the rear upper beam; the single-row rear upper beam is under stress, and the overall stability is poor; when the main truss is long and the 0# block section of the continuous box beam is short, the hanging basket cannot be used to construct the 1# block; due to the existence of the front upper beam, the hanging basket cannot move directly to the casting station of the joint section to carry out the joint section construction section, and an additional hanger needs to be set up to carry out the joint section construction, and the steps are cumbersome. Summary of the invention

[0005] In response to the shortcomings or one of the shortcomings raised by the above-mentioned background technology, the embodiment of the present application provides a bridge cantilever construction basket and a construction method thereof, which is convenient for on-site use, has the advantage of better overall stability, can realize the overall lifting of the steel cage, and is suitable for the construction scenario of shorter No. 0 block continuous box girder concrete, and has a wide range of applications.

[0006] In a first aspect, an embodiment of the present application provides a bridge cantilever construction hanging basket, comprising:

[0007] The main truss comprises a first connecting section for installing a bottom-supported hanging basket, and a second connecting section detachably connected to the first connecting section. When the No. 1 blocks on both sides of the No. 0 block of the bridge are constructed simultaneously, the first connecting sections are arranged in pairs and connected to each other. When the subsequent sections connected to the No. 1 block of the bridge are constructed, the first connecting section and the second connecting section are connected to each other.

[0008] In the first aspect, some embodiments further include a rear upper crossbeam for suspending and installing the main truss piece, and the rear upper crossbeam includes a C-hook crossbeam and C-shaped hooks connected to both ends of the C-hook crossbeam.

[0009] In the first aspect, some embodiments further include a traveling platform connected to the rear upper cross beam, and a rotating crane for hoisting the steel cage is installed on the traveling platform.

[0010] In the first aspect, in some embodiments, the accompanying platform includes a walking beam arranged parallel to the rear upper cross beam, and a connecting system connecting the walking beam and the rear upper cross beam, and the second connecting section is detachably connected to the walking beam.

[0011] In the first aspect, in some embodiments, a hanging frame is sleeved on the end of the C-shaped hook, and the hanging frame is connected to the first connecting section via a rotating shaft. A first lifting member for adjusting the inclination angle of the first connecting section is provided on the first connecting section or the second connecting section.

[0012] In the first aspect, in some embodiments, the hanging frame is connected to an anchor rod that passes through the C-hook beam, and the C-hook beam is provided with a second lifting member for driving the anchor rod to move so as to lift the hanging frame.

[0013] In the first aspect, some embodiments further include a front upper cross beam for connecting the first connecting sections on both sides of the bridge, and a detachable middle section is provided on the front upper cross beam.

[0014] In the first aspect, some embodiments further include a bottom mold, a side mold and an inner mold, wherein the bottom mold is arranged on the bottom-supported hanging basket, and the side mold is supported on the main truss.

[0015] In the first aspect, in some embodiments, the bottom-supported hanging basket includes a bottom basket template, and the four corners of the bottom basket template are connected to the first connecting sections on both sides of the bridge through suspension parts.

[0016] In the first aspect, in some embodiments, the suspension member includes a suspension rod and a third lifting member provided on the first connecting section, the third lifting member is used for lifting and lowering the suspension rod, and the suspension rod is connected to the bottom basket template via a sling.

[0017] In a second aspect, an embodiment of the present application provides a bridge cantilever hanging basket construction method, using any of the above-mentioned bridge cantilever construction hanging baskets, the construction method comprising:

[0018] After the construction of bridge block zero is completed, the bottom-supported hanging basket is installed, main trusses are arranged in pairs on both sides of bridge block zero, and the first connecting sections of two adjacent main trusses are connected to each other, the casting formwork is installed, the steel cage is hoisted, and the concrete of bridge block one is cast;

[0019] After the concrete pouring is completed and cured to the designed strength, the formwork is removed, the first connecting sections of the two adjacent main trusses are disassembled from each other and moved forward a segment distance, and at the same time, the lower support hanging basket and pouring formwork are adjusted, the steel cage is hoisted, and the concrete of the bridge block No. 2 is poured;

[0020] After the concrete pouring is completed and cured to the designed strength, the formwork is removed and the main truss is moved forward by a segment distance. At the same time, the position of the lower support basket and the pouring formwork is adjusted, the steel cage is hoisted, and the concrete of the subsequent segments of the bridge is poured;

[0021] Repeat the previous step until the bridge structure construction is completed.

[0022] The beneficial effects of the technical solution provided by this application include:

[0023] An embodiment of the present application provides a bridge cantilever construction basket and a construction method thereof, wherein the main truss comprises a first connecting section for installing a bottom-supported basket, and a second connecting section detachably connected to the first connecting section. When the No. 1 blocks on both sides of the No. 0 block of the bridge are constructed simultaneously, the first connecting sections are arranged in pairs and connected to each other. When the subsequent sections connected to the No. 1 block of the bridge are constructed, the first connecting section and the second connecting section are connected to each other.

[0024] Since the main truss adopts a spliced ​​two-section truss structure, the second connecting section at the tail is detachably connected to the first connecting section, which is convenient for disassembly and assembly. When the continuous beam block No. 0 is short and two main trusses cannot be arranged at the same time to construct the No. 1 block, the second connecting section at the tail of the main truss can be detached, and the first connecting sections of the main trusses at both ends are connected end to end, so as to realize symmetrical and rapid construction of the No. 1 block. It has a wider range of applications, can improve construction efficiency, and has promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic diagram of the implementation of the construction of the first bridge block according to the embodiment of the present application;

[0027] Figure 2 This is a schematic diagram of the implementation of the construction of the bridge block No. 2 according to the embodiment of the present application;

[0028] Figure 3 for Figure 2 Schematic diagram of the cross section at AA in the middle;

[0029] Figure 4 for Figure 2 Schematic diagram of the cross section at the middle BB;

[0030] Figure 5 for Figure 2 Schematic diagram of the cross section at CC.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Main truss; 101. First connecting section; 102. Second connecting section; 2. Rear upper beam; 201. C-hook beam; 202. C-type hook; 3. Traveling platform; 301. Walking beam; 302. Connection system; 4. Rotating crane; 5. Hanging frame; 6. First jacking piece; 7. Anchor rod; 8. Second jacking piece; 9. Front upper beam; 901. Middle section; 10. Bottom formwork; 11. Side formwork; 12. Inner formwork; 13. Bottom basket formwork; 14. Suspension piece; 141. Suspension rod; 142. Third jacking piece; 143. Suspension strap. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] In response to the shortcomings or one of the shortcomings raised by the above-mentioned background technology, the embodiment of the present application provides a bridge cantilever construction basket and a construction method thereof, which is convenient for on-site use, has the advantage of better overall stability, can realize the overall lifting of the steel cage, and is suitable for the construction scenario of shorter No. 0 block continuous box girder concrete, and has a wide range of applications.

[0035] See also Figures 1 to 5 As shown, the first aspect of the embodiment of the present application provides a bridge cantilever construction hanging basket, comprising:

[0036] The main truss 1 includes a first connecting section 101 for installing a bottom-supported hanging basket, and a second connecting section 102 detachably connected to the first connecting section 101. When the No. 1 blocks on both sides of the No. 0 block of the bridge are constructed simultaneously, the first connecting sections 101 are arranged in pairs and connected to each other. When the subsequent sections connected to the No. 1 block of the bridge are constructed, the first connecting section 101 and the second connecting section 102 are connected to each other.

[0037] The main truss piece 1 of the bridge cantilever construction hanging basket of the embodiment of the present application adopts a spliced ​​two-section truss structure, and the second connecting section 102 at the rear is detachably connected to the first connecting section 101, which is convenient for disassembly and assembly. When the continuous beam zero block is short and two main trusses 1 cannot be arranged at the same time to carry out the construction of the No. 1 block, the second connecting section 102 at the rear of the main truss piece 1 can be detached, and the first connecting sections 101 of the main trusses 1 at both ends are connected end to end, so as to realize symmetrical and rapid construction of the No. 1 block, improve construction stability, have a wider range of applications, improve construction efficiency, and have promotion and application value.

[0038] Exemplarily, the main truss piece 1 adopts a splicable inverted trapezoidal truss structure, and the second connecting section 102 at the rear is connected to the first connecting section 101 by bolts, which is convenient for disassembly and assembly. When the continuous beam block No. 0 is short and two main truss pieces 1 cannot be arranged at the same time for No. 1 construction, the second connecting section 102 at the rear can be cancelled, and the first connecting sections 101 at both ends are connected end to end to achieve symmetrical and rapid construction of block No. 1.

[0039] It should be noted that the first connecting sections 101 at both ends are connected end to end. When the No. 1 blocks at both ends of the continuous beam block No. 0 are constructed symmetrically, the steel bars can be installed by overall lifting, which saves the time for steel bar binding and improves construction efficiency. When constructing subsequent sections connected to the No. 1 block, the second connecting section 102 is installed on the first connecting section 101.

[0040] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a bridge cantilever construction hanging basket, which also includes a rear upper beam 2 for hanging and installing a main truss 1, and the rear upper beam 2 includes a C-hook beam 201 and C-shaped hooks 202 connected to both ends of the C-hook beam 201.

[0041] The rear upper crossbeam 2 of the embodiment of the present application is used to support the main truss piece 1 and the lower supporting basket connected to the main truss piece 1. The rear upper crossbeam 2 includes a C-hook crossbeam 201 and C-shaped hooks 202 fixedly installed at both ends of the C-hook crossbeam 201. The C-hook crossbeam 201 adopts a middle arch design, and a space of about 2m in height is reserved. On-site workers can pass through without the help of ladders, which is safe and convenient.

[0042] Exemplarily, the C-hook beam 201 stands on the beam surface of the continuous beam through a walking mechanism, and the space formed by the arch in the middle is convenient for on-site workers to pass through. The C-shaped hooks 202 fixedly connected at both ends extend under the flange of the continuous beam to facilitate the installation of the main truss 1.

[0043] The traveling mechanism includes a lifting cylinder, traveling wheels and a traveling cylinder installed at both ends of the C-hook beam 201. The traveling wheels cooperate with the tracks installed on the continuous beam. When the rear upper beam 2 is stationary, positioning is achieved through the lifting cylinder. When the rear upper beam 2 needs to move, it is moved through the cooperation of the traveling cylinder and the traveling wheels.

[0044] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a bridge cantilever construction hanging basket, which also includes an accompanying platform 3 connected to the rear upper crossbeam 2, and a rotating crane 4 for hoisting a steel cage is installed on the accompanying platform 3.

[0045] The accompanying platform 3 supported on the continuous beam is overlapped on the rear upper beam 2 of the embodiment of the present application, and a rotating crane 4 is installed on the accompanying platform 3. When the rear upper beam 2 moves, the accompanying platform 3 can follow the upper beam 2 and drive the rotating crane 4 to move, so as to facilitate the overall lifting and lowering of the steel cage by the rotating crane 4. That is, the steel frame that has been tied can be hoisted into the platform space of the casting template as a whole, so as to realize the overall lifting of the steel bars, without the need for on-site tying, which greatly saves the time of steel bar tying.

[0046] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a bridge cantilever construction basket, the accompanying platform 3 of the bridge cantilever construction basket includes a walking beam 301 arranged parallel to the rear upper crossbeam 2, and a connecting system 302 connecting the walking beam 301 and the rear upper crossbeam 2, and the second connecting section 102 is detachably connected to the walking beam 301.

[0047] The accompanying platform 3 of the embodiment of the present application includes a walking beam 301 and a connecting system 302. The walking beam 301 can adopt the same structure as the rear upper cross beam 2, ensuring that after the connecting system 302 between the walking beam 301 and the rear upper cross beam 2 is installed, it is convenient for workers on site to pass. The walking beam 301 and the rear upper cross beam 2 form a double row of C hooks, and the connecting system 302 is arranged in the middle, which increases the overall stability of the main structure of the hanging basket and provides an installation platform for the accompanying rotating crane 4.

[0048] Furthermore, the end of the walking beam 301 of the embodiment of the present application can be detachably connected to the second connecting section 102 of the main truss 1. When casting the second block and subsequent segments of the continuous beam, the walking beam 301 is connected to the second connecting section 102. The walking beam 301 and the rear upper cross beam 2 are used to simultaneously support the main truss 1, which can improve the stability during casting construction.

[0049] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a bridge cantilever construction hanging basket, wherein a hanging frame 5 is sleeved on the end of a C-shaped hook 202 of the bridge cantilever construction hanging basket, and the hanging frame 5 is connected to the first connecting section 101 through a rotating shaft, and a first lifting member 6 for adjusting the inclination angle of the first connecting section 101 is provided on the first connecting section 101 or the second connecting section 102.

[0050] The end of the C-shaped hook 202 of the embodiment of the present application is sleeved with a hanging frame 5, which is connected to the first connecting section 101 of the main truss piece 1 through a rotating shaft, so as to facilitate the rotation and adjustment of the front end height position of the first connecting section 101. For example, when the No. 1 block is cast, the tail end of the first connecting section 101 can be installed with a first jacking member 6, and the flange of the No. 0 block of the continuous beam is lifted by the first jacking member 6, so that the first connecting section 101 can be pitched and rotated around the hanging frame 5 to adjust to the designed position, so as to facilitate the tail-to-tail connection of the first connecting section 101.

[0051] For example, when pouring and constructing the subsequent segments connected to the No. 1 block, the second connection segment 102 is installed on the first connection segment 101, and the first jacking member 6 can be installed on the first connection segment 101. The wing surface of the No. 0 block of the continuous beam is lifted by the first jacking member 6, so that the first connection segment 101 can be pitched and rotated around the hanging frame 5 to adjust to the designed position, so as to facilitate the end-to-end connection of the first connection segment 101. The first jacking member 6 can use a jacking cylinder, which is equipped with a support wheel, and when the rear upper crossbeam 2 moves, it cooperates with the rear upper crossbeam 2 to realize the movement of the main truss 1.

[0052] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a bridge cantilever construction hanging basket, the hanging frame 5 of which is connected with an anchor rod 7 penetrating a C-hook beam 201, and the C-hook beam 201 is provided with a second jacking member 8 for driving the anchor rod 7 to move so as to lift the hanging frame 5.

[0053] The hanging frame 5 of the embodiment of the present application is equipped with an anchor rod 7 through a fastener. The anchor rod 7 penetrates the flange of the continuous beam and the C-hook beam 201 upward. The C-hook beam 201 is equipped with a second jacking member 8. The second jacking member 8 can lift the anchor rod 7 to separate the hanging frame 5 from the C-shaped hook 202 and abut and fix it on the flange of the continuous beam, thereby completing the conversion of the force fulcrum and concentrating the force on the C-hook beam 201 to ensure stability during pouring construction.

[0054] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a bridge cantilever construction basket, which also includes a front upper crossbeam 9 for connecting the first connecting sections 101 on both sides of the bridge, and a detachable middle section 901 is provided on the front upper crossbeam 9.

[0055] The main trusses 1 connecting the two sides of the bridge in the embodiment of the present application are also equipped with a front upper crossbeam 9. Specifically, the front upper crossbeam 9 connects the ends of the two first connecting sections 101 together to improve the bearing stability of the main trusses 1. A detachable middle section 901 is provided on the front upper crossbeam 9. During the jointing construction, it is only necessary to remove the middle part of the front upper crossbeam 9 and then walk directly to the casting station of the jointing section.

[0056] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a bridge cantilever construction hanging basket, which also includes a bottom mold 10, a side mold 11 and an inner mold 12. The bottom mold 10 is arranged on the bottom-supported hanging basket, and the side mold 11 is supported on the main truss 1.

[0057] The bridge cantilever construction hanging basket of the embodiment of the present application also includes a bottom form 10, a side form 11 and an inner form 12. During installation, the bottom form 10 is installed on the bottom-supported hanging basket, the side form 11 is supported on the main truss pieces 1 on both sides, and the inner form 12 is installed in the hollow hole of the continuous beam. By way of example, in this implementation, a bracket and a lifting cylinder can be set up on the main truss piece 1, and a transverse cylinder can be installed on the bottom-supported hanging basket to tighten the side form 11 to the flange and side wall of the continuous beam, and the inner form 12 is set up on the anchor frame in the hollow part of the connecting beam.

[0058] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a bridge cantilever construction hanging basket, the bottom-supported hanging basket of the bridge cantilever construction hanging basket includes a bottom basket template 13, and the four corners of the bottom basket template 13 are connected to the first connecting sections 101 on both sides of the bridge through suspension parts 14.

[0059] The bottom-supported hanging basket of the embodiment of the present application includes a bottom basket template 13, and the four corners of the bottom basket template 13 are connected to the first connecting sections 101 on both sides of the bridge through suspension parts 14, so as to realize the bearing of the bottom template 10. Exemplarily, the suspension parts 14 of the present embodiment are hinged to the bottom basket template 13, so that the inclination angle of the bottom basket template 13 can be adjusted conveniently by adjusting the suspension parts 14.

[0060] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a bridge cantilever construction hanging basket, wherein the suspension component 14 of the bridge cantilever construction hanging basket includes a suspension rod 141 and a third lifting component 142 arranged on a first connecting section 101, wherein the third lifting component 142 is used for lifting and lowering the suspension rod 141, and the suspension rod 141 is connected to a bottom basket template 13 via a sling 143.

[0061] The suspension member 14 of the embodiment of the present application includes a suspension rod 141, a third lifting member 142 and a sling 143. In the present embodiment, the front end suspension rod 141 upwardly penetrates the first connecting section 101 and the front upper cross beam 9 and is fixedly connected to the bottom basket template 13 through the sling 143. The third lifting member 142 supporting the suspension rod 141 is installed on the front upper cross beam 9. At the same time, the rear end suspension rod 141 upwardly penetrates the lower chord of the first connecting section 101, and the third lifting member 142 supporting the suspension rod 141 is also installed on the lower chord, thereby cooperating to realize the lifting and lowering of the bottom basket template 13.

[0062] See also Figures 1 to 5 As shown, the second aspect of the embodiment of the present application provides a bridge cantilever hanging basket construction method, using the bridge cantilever construction hanging basket of any of the above embodiments, the construction method includes:

[0063] After the construction of bridge block zero is completed, the bottom-supported hanging basket is installed, main trusses 1 are arranged in pairs on both sides of bridge block zero, and the first connecting sections 101 of two adjacent main trusses 1 are connected to each other, the casting formwork is installed, the steel cage is hoisted, and the concrete of bridge block one is cast;

[0064] After the concrete pouring is completed and cured to the designed strength, the formwork is removed, the first connecting sections 101 of the two adjacent main trusses 1 are disassembled from each other and moved forward by a segment distance, and at the same time, the lower support hanging basket and the pouring formwork are adjusted, the steel cage is hoisted, and the concrete of the bridge block No. 2 is poured;

[0065] After the concrete pouring is completed and cured to the designed strength, the formwork is removed, the main truss 1 is moved forward by a segment distance, the positions of the lower support hanging basket and the pouring formwork are adjusted, the steel cage is hoisted, and the concrete of the subsequent segments of the bridge is poured;

[0066] Repeat the previous step until the bridge structure construction is completed.

[0067] The construction method of the embodiment of the present application uses the bridge cantilever construction hanging basket of the above embodiment, which has the following advantages compared with the ordinary hanging basket:

[0068] 1. A walking beam 301 and a rear upper cross beam 2 are used to form a double row of C hooks, and a connecting system 302 is arranged in the middle, which increases the overall stability of the main structure of the hanging basket and provides an installation platform for the accompanying rotating crane 4;

[0069] 2. A small portable rotating crane 4 is provided on the connection system 302, which can hoist the steel bar skeleton that has been tied into the platform space of the casting formwork as a whole, so as to realize the hoisting of the steel bar as a whole, greatly saving the steel bar tying time;

[0070] 3. The C-hook beam 201 of the rear upper beam 2 adopts a middle arch design, which reserves a space of about 2m in height. On-site workers can pass through without the help of ladders, which is safe and convenient;

[0071] 4. The main truss piece 1 adopts a splicable inverted trapezoidal truss structure. The first connecting section 101 at the rear is connected to the second connecting section 102 by bolts, which is convenient for disassembly and assembly. When the continuous beam block No. 0 is short and two main truss pieces 1 cannot be arranged at the same time to construct the block No. 1, the second connecting section 102 at the rear can be cancelled, and the first connecting sections 101 at both ends are connected end to end to achieve symmetrical and rapid construction of the block No. 1.

[0072] 5. The front upper cross beam 9 is designed in sections and has a detachable middle section 901. During the jointing construction, it is only necessary to remove the middle section 901 of the front upper cross beam 9 and then walk directly to the casting station of the jointing section.

[0073] In summary, the present application has a reasonable design, which solves the shortcomings of the traditional bottom-supported hanging basket, such as weak overall stability, inability to adapt to the construction of shorter zero-block continuous box girders, and inability to directly construct the joint section. It has a wider range of applications and truly realizes the overall lifting of steel bars, saving steel bar binding time and improving construction efficiency. It has certain promotion value and application value.

[0074] Exemplarily, the specific steps of the construction method of the embodiment of the present application are as follows:

[0075] S1. Install the hanging basket and construct the No. 1 block: Assemble the bottom-supported hanging basket off-site in advance, and do not install the main truss piece 1 for the time being. After the construction of the continuous beam block No. 0 is completed, the pre-assembled bottom-supported hanging basket is hoisted as a whole, and the tails of the first connecting sections 101 of the main truss pieces 1 on both sides are connected to each other by bolts. After the installation is completed, adjust to the designed linear elevation, hoist the steel cage, and pour the concrete of the No. 1 block.

[0076] S2. Demoulding: After the pouring of concrete block No. 1 is completed and the concrete has reached the designed strength after curing, demoulding is carried out after tensioning and grouting are completed. The demoulding order is: side mould 11 → bottom mould 10 → inner mould 12.

[0077] The side mold 11 is demoulded by using the lifting cylinder and the transverse cylinder; the bottom basket mold 13 is lowered and demoulded by using the front and rear lifting cylinders of the suspension member 14 on the bottom basket mold 13; and the inner mold 12 is flipped and demoulded by using the flipping cylinder.

[0078] S3, fulcrum conversion before traveling: remove the connecting bolts of the first connecting sections 101 on both sides, lift the lifting cylinder connected to the anchor rod 7, loosen the nut on the anchor rod 7, and then lower the lifting cylinder connected to the anchor rod 7, so that the hanging frame 5 connected to the main trusses 1 on both sides falls on the C-shaped hook 202, and manually remove the anchor rod 7;

[0079] The lifting cylinders on the walking beam 301 and the rear upper cross beam 2 are retracted synchronously at the same speed, so that the running wheels on the walking beam 301 and the rear upper cross beam 2 fall into the track on the continuous beam.

[0080] S4. Move forward to the casting position of block No. 2: Use the walking cylinder on the bridge deck to push the hanging basket forward as a whole by a segment distance.

[0081] S5. System conversion before pouring: install the second connecting section 102 on the main truss 1, extend the lifting cylinders on the walking beam 301 and the rear upper cross beam 2 synchronously at the same speed, so that the running wheels on the walking beam 301 and the rear upper cross beam 2 leave the track on the continuous beam, manually install the anchor rod 7, control the lifting cylinder connected to the anchor rod 7 to move upward, and anchor.

[0082] S6, mold closing: use the front and rear lifting cylinders of the suspension member 14 on the bottom basket template 13 to complete the mold closing of the bottom mold 10; use the lifting cylinder and the transverse cylinder to complete the mold closing of the side mold 11.

[0083] S7, lifting of the steel cage: using the accompanying rotating crane 4 to lift the pre-tied steel cage as a whole, and complete the connection with the reserved steel bars of the previous section.

[0084] S8, move the inner form 12 forward and anchor it, connect the inner and outer form tensioning steel bars, and prepare to pour concrete.

[0085] S9. Continue to construct subsequent sections of the continuous beam by referring to the above steps.

[0086] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0087] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0088] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A bridge cantilever construction hanging basket, characterized in that: include: A main truss (1) comprises a first connecting section (101) for installing a bottom-supported hanging basket, and a second connecting section (102) detachably connected to the first connecting section (101); when No. 1 blocks on both sides of No. 0 bridge block are constructed simultaneously, the first connecting sections (101) are arranged in pairs and connected to each other; when subsequent sections connected to No. 1 bridge block are constructed, the first connecting section (101) and the second connecting section (102) are connected to each other.

2. The bridge cantilever construction hanging basket as claimed in claim 1, characterized in that: It also comprises a rear upper crossbeam (2) for suspending and installing the main truss piece (1), wherein the rear upper crossbeam (2) comprises a C-hook crossbeam (201) and C-shaped hooks (202) connected to both ends of the C-hook crossbeam (201).

3. The bridge cantilever construction hanging basket as claimed in claim 2, characterized in that: It also comprises a travelling platform (3) connected to the rear upper cross beam (2), and a rotating crane (4) for hoisting a steel cage is installed on the travelling platform (3).

4. The bridge cantilever construction hanging basket as claimed in claim 3, characterized in that: The accompanying platform (3) comprises a walking beam (301) arranged in parallel with the rear upper cross beam (2), and a connecting system (302) connecting the walking beam (301) and the rear upper cross beam (2), and the second connecting section (102) is detachably connected to the walking beam (301).

5. The bridge cantilever construction hanging basket as claimed in claim 2, characterized in that: A hanging frame (5) is sleeved on the end of the C-shaped hook (202), and the hanging frame (5) is connected to the first connecting section (101) via a rotating shaft. A first lifting member (6) for adjusting the tilt angle of the first connecting section (101) is provided on the first connecting section (101) or the second connecting section (102).

6. The bridge cantilever construction hanging basket as claimed in claim 5, characterized in that: The hanging frame (5) is connected to an anchor rod (7) penetrating the C-hook beam (201), and the C-hook beam (201) is provided with a second lifting member (8) for driving the anchor rod (7) to move so as to lift the hanging frame (5).

7. The bridge cantilever construction hanging basket as claimed in claim 1, characterized in that: It also comprises a front upper cross beam (9) for connecting the first connecting sections (101) on both sides of the bridge, wherein a detachable middle section (901) is arranged on the front upper cross beam (9).

8. The bridge cantilever construction hanging basket as claimed in claim 1, characterized in that: It also comprises a bottom mold (10), a side mold (11) and an inner mold (12); the bottom mold (10) is arranged on the bottom-supported hanging basket, and the side mold (11) is supported on the main truss (1).

9. The bridge cantilever construction hanging basket as claimed in claim 1, characterized in that: The bottom-supported hanging basket comprises a bottom basket template (13), and the four corners of the bottom basket template (13) are connected to the first connecting sections (101) on both sides of the bridge through suspension members (14); The suspension member (14) comprises a suspension rod (141) and a third lifting member (142) arranged on the first connecting section (101); the third lifting member (142) is used to lift and lower the suspension rod (141); and the suspension rod (141) is connected to the bottom basket template (13) via a sling (143).

10. A method for constructing a bridge cantilever hanging basket, using the bridge cantilever construction hanging basket as claimed in any one of claims 1 to 9, characterized in that: Construction methods include: After the construction of bridge block No. 0 is completed, the bottom-supported hanging basket is installed, main trusses (1) are arranged in pairs on both sides of bridge block No. 0, and the first connecting sections (101) of two adjacent main trusses (1) are connected to each other, the casting formwork is installed, the steel cage is hoisted, and the concrete of bridge block No. 1 is cast; After the concrete pouring is completed and cured to the designed strength, the formwork is removed, the first connecting sections (101) of the two adjacent main trusses (1) are disassembled from each other and moved forward by a segment distance, and at the same time, the lower support hanging basket and the pouring formwork are adjusted, the steel cage is hoisted, and the concrete of the bridge block No. 2 is poured; After the concrete pouring is completed and cured to the designed strength, the formwork is removed, the main truss (1) is moved forward by a segment distance, the positions of the lower support hanging basket and the pouring formwork are adjusted, the steel cage is hoisted, and the concrete of the subsequent segments of the bridge is poured; Repeat the previous step until the bridge structure construction is completed.

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