A large-tonnage swivel bridge ball hinge positioning structure and construction method

Abstract

The application discloses a large-tonnage swivel bridge ball hinge positioning structure and a construction method, and relates to the technical field of bridge construction.The large-tonnage swivel bridge ball hinge positioning structure comprises a lower rotating disc, a support pile body and a plurality of traction assemblies, the bottom center of the lower rotating disc is provided with a spherical swivel body, the top of the support pile body is provided with a spherical groove matched with the spherical swivel body, and the spherical swivel body is rotationally connected in the spherical groove; the plurality of traction assemblies are distributed on the circumferential side of the support pile body, the traction ends of the plurality of traction assemblies are all connected to the lower end face of the lower rotating disc, and the lower rotating disc is leveled by being pulled downward. The support pile body replaces a large support frame, a large amount of steel is saved, the steps of steel structure welding are simplified, transportation cost and labor cost are reduced, the lower rotating disc can be rotated in all directions through cooperation of the spherical swivel body and the spherical groove on the support pile body, the flexibility of the lower rotating disc is improved, leveling is realized by cooperation of the traction of the traction assemblies, and the construction efficiency of the swivel system is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of swivel bridges, in particular to a large-tonnage swivel bridge spherical hinge positioning structure and construction method. BACKGROUND

[0002] The swivel bridge is a bridge constructed by swivel method. Bridge swivel construction refers to a construction method of forming a bridge structure at a position other than the design axis (poured or spliced) and then positioning it by swivel. It can convert the work above the obstacle into ground work. It is mainly used in situations where support cannot be provided for crossing valleys, rivers, railways and highways. The swivel system of the swivel bridge is composed of a lower turntable, a pin shaft, an upper turntable and a traction system. The swivel process is generally achieved by forming a rotating couple through the opposite traction of the jack.

[0003] In related technologies, when constructing the swivel system, a large circular support frame is made according to the overall area of the lower turntable to serve as the main support structure of the lower turntable. Jacks are then arranged on the support frame to support and level the edge bottom of the lower turntable, ensuring that the levelness of the lower turntable meets the standard. The lower turntable is then locked, and formwork is erected and steel is tied on the outer periphery of the support frame. The support frame is then grouted and poured together with the lower turntable to form a concrete support. A pin shaft is then inserted at the axis position of the lower turntable to serve as the rotating shaft of the upper turntable. The upper turntable is a bottom support structure for driving the bridge to rotate. The horizontal jack or traction cable is used for traction to achieve the purpose of bridge rotation.

[0004] The related technologies in the above have the following defects: A large support frame is used as the support structure of the lower turntable, which requires a large amount of steel to be prepared on site according to the design size for assembly. The on-site assembly of the support frame requires the cooperation of multiple construction personnel. After the assembly of the support frame is completed, the lower turntable needs to be supported and leveled by the jack. The installation and leveling are tedious operations, which affects the construction efficiency of the swivel system, and thus there is still room for improvement. SUMMARY

[0005] In order to improve the construction efficiency of the swivel system, the present application provides a large-tonnage swivel bridge spherical hinge positioning structure and construction method.

[0006] The large-tonnage swivel bridge spherical hinge positioning structure and construction method provided by the present application adopts the following technical solution:

[0007] A large-tonnage swivel bridge spherical hinge positioning structure, comprising:

[0008] A lower turntable, a spherical swivel is protrudingly arranged at the center of the bottom of the lower turntable;

[0009] Supporting pile bodies are vertically arranged and the top is concavely arranged with a spherical groove matched with the spherical rotating body, and the spherical rotating body is rotationally connected in the spherical groove;

[0010] A plurality of traction assemblies are distributed on the side of the supporting pile bodies, and the traction ends of the plurality of traction assemblies are connected to the lower end surface of the lower rotating disc and level the lower rotating disc by pulling downward.

[0011] By adopting the above technical scheme, the supporting pile bodies replace large supporting frames, so that a large amount of steel can be saved, and the steps of steel structure welding are simplified, which is beneficial to reduce the transportation cost and labor cost. The spherical rotating body and the spherical groove on the supporting pile body are matched, so that the lower rotating disc can rotate in all directions, thereby improving the flexibility of the lower rotating disc, facilitating the leveling by pulling the traction assembly, and improving the construction efficiency of the rotating system.

[0012] Preferably, the traction assembly comprises a connecting ring, a mounting frame, and a winch arranged on the mounting frame. The connecting rings of the plurality of traction assemblies are circumferentially distributed on the side of the supporting pile bodies and below the lower rotating disc. The mounting frames of the plurality of traction assemblies are circumferentially distributed on the side of the lower rotating disc and outside the connecting rings. The traction rope of the winch passes through the connecting ring and is connected to the bottom edge of the lower rotating disc.

[0013] By adopting the above technical scheme, the mounting frame raises the position of the winch, and the connecting ring changes the pulling direction of the traction rope, so that the winch can be avoided to be buried in the concrete, and the downward direction of the traction force can be maintained. During the pouring of the concrete, the traction assembly keeps pulling the lower rotating disc, which is beneficial to maintain the stability of the lower rotating disc.

[0014] Preferably, the connecting ring is located directly below the edge of the lower rotating disc, and the traction rope of the winch vertically extends upward to the bottom edge of the lower rotating disc after passing through the connecting ring and is fixed.

[0015] By adopting the above technical scheme, the traction force of the traction rope of the winch is vertically downward, so as to pull the lower rotating disc downward for leveling.

[0016] Preferably, when pouring concrete below the lower rotating disc, the mounting frames are used to support the back of the formwork.

[0017] By adopting the above technical scheme, since the mounting frames are circumferentially distributed on the outer periphery of the lower rotating disc according to the arrangement mode of the traction assembly, the mounting frames can simultaneously serve as the support structure of the formwork during the pouring of the concrete, which is beneficial to improve the efficiency and stability of the formwork erection, and thereby improves the construction efficiency and quality of the rotating system.

[0018] Preferably, the first connecting members are circumferentially distributed on the lower turntable, and the second connecting members are circumferentially distributed on the outer periphery of the support pile body.

[0019] By adopting the above technical solution, the first connecting members of the lower turntable and the second connecting members of the support pile body are connected after the lower turntable is leveled, thereby further reinforcing the connection stability between the lower turntable and the support pile body, and the overall stability of the lower turntable is improved by cooperating with the traction assembly.

[0020] Preferably, the first connecting members are connecting steel bars, and the connecting steel bars are embedded in the inner ring position at the bottom of the lower turntable; and the second connecting members are connecting rods, and the connecting rods are embedded radially on the outer periphery of the support pile body.

[0021] By adopting the above technical solution, the connecting steel bars are embedded in the inner ring position at the bottom of the lower turntable in advance, and the connecting rods are embedded in the support pile body in advance. After the lower turntable is installed in place, the connecting steel bars are fixed to the connecting rods by binding, which is convenient for connection and is conducive to improving the installation efficiency of the lower turntable.

[0022] A construction method of a ball hinge positioning structure of a large-tonnage rotating bridge, comprising the following steps:

[0023] Pouring the support pile body and reserving a spherical groove on the top of the support pile body;

[0024] Installing the lower turntable, hoisting the lower turntable onto the support pile body, and positioning the spherical rotating body at the bottom of the lower turntable into the spherical groove on the top of the support pile body;

[0025] Installing the traction assembly in place, and connecting the traction rope of the winch of the traction assembly to the lower turntable after passing through the connecting ring;

[0026] Starting multiple winches, and pulling down the lower turntable by the winches to level the lower turntable;

[0027] Erecting a formwork on the outer periphery of the lower turntable, installing the formwork on the inner side of the mounting frame of the traction assembly, supporting the back of the formwork by the mounting frame, and then performing the steps of reinforcing bar binding and concrete pouring, and embedding the lower part of the lower turntable and the support pile body in the concrete structure.

[0028] By adopting the technical scheme, the support pile body replaces a large support frame, so that a large amount of steel material can be saved, and the welding and splicing steps of the steel structure are simplified, which is beneficial to reducing the transportation cost and the labor cost, and the spherical hinge is matched with the spherical groove on the support pile body, so that the lower turntable can be rotated in all directions, thereby improving the flexibility of the lower turntable, facilitating the traction of the traction assembly to achieve the leveling purpose, the mounting frame can simultaneously serve as a support structure of the formwork, which is beneficial to improving the efficiency and stability of the formwork erection, and thereby improving the construction efficiency and quality of the turntable system.

[0029] Preferably, after the leveling action of the lower turntable of S4 is completed, the traction assembly keeps pulling the lower turntable, and then the first connecting member and the second connecting member are connected to reinforce the lower turntable.

[0030] By adopting the technical scheme, the first connecting member of the lower turntable and the second connecting member of the support pile body are connected, so as to further reinforce the connection stability between the lower turntable and the support pile body, and the traction assembly is matched to improve the overall stability of the lower turntable.

[0031] In summary, the present application has at least one of the following beneficial technical effects:

[0032] 1. By replacing a large support frame with a support pile body, a large amount of steel material can be saved, and the welding and splicing steps of the steel structure are simplified, which is beneficial to reducing the transportation cost and the labor cost, and the spherical hinge is matched with the spherical groove on the support pile body, so that the lower turntable can be rotated in all directions, thereby improving the flexibility of the lower turntable, facilitating the traction of the traction assembly to achieve the leveling purpose, the mounting frame can simultaneously serve as a support structure of the formwork, which is beneficial to improving the efficiency and stability of the formwork erection, and thereby improving the construction efficiency and quality of the turntable system;

[0033] 2. When pouring concrete under the lower turntable, the mounting frames are used as support members of the back of the formwork, which can save the material of the support members, and is beneficial to improving the efficiency and stability of the formwork erection, and thereby improving the construction efficiency and quality of the turntable system;

[0034] 3. After the leveling action of the lower turntable is completed, the traction assembly keeps pulling the lower turntable, and then the first connecting member and the second connecting member are connected to further reinforce the connection stability between the lower turntable and the support pile body, and the traction assembly is matched to improve the overall stability of the lower turntable. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a schematic diagram of the overall structure of a large-tonnage turntable bridge spherical hinge positioning structure according to an embodiment of the present application.

[0036] Figure 2is a plane schematic view of a ball hinge positioning structure of a large-tonnage rotating bridge according to an embodiment of the present application.

[0037] Reference signs: 1, support pile; 2, lower turntable; 3, traction assembly; 31, winch; 32, mounting rack; 33, connecting ring; 34, traction rope; 4, spherical groove; 5, spherical rotating body; 6, first connecting member; 7, second connecting member; 8, formwork. DETAILED DESCRIPTION

[0038] The following will be described in detail below with reference to the accompanying drawings. Figures 1-2 The present application will be further described in detail.

[0039] The present application discloses a ball hinge positioning structure of a large-tonnage rotating bridge, referring to Figure 1 and Figure 2 , comprising a lower turntable 2, a support pile 1 and a plurality of traction assemblies 3, wherein the lower turntable 2 is provided with a spherical rotating body 5 at the center of the bottom; the spherical rotating body 5 is a concrete structure and is integrally formed with the bottom of the lower turntable 2. The support pile 1 is vertically arranged and provided with a spherical groove 4 matching the spherical rotating body 5 at the top. The groove wall of the spherical groove 4 is pre-buried with a spherical steel plate to improve the structural strength and smoothness of the spherical groove 4. The spherical rotating body 5 is rotationally connected in the spherical groove 4, so that the lower turntable 2 can rotate in all directions. In this embodiment, the plurality of traction assemblies 3 are circumferentially distributed around the support pile 1, the traction ends of the plurality of traction assemblies 3 are connected to the lower end surface of the lower turntable 2, and the leveling purpose of the lower turntable 2 is achieved by pulling downward. Wherein, the support pile 1 replaces the large support frame, thereby a large amount of steel can be saved, and the steel structure welding step is simplified, which is conducive to reducing transportation cost and labor cost, and through the cooperation of the spherical rotating body 5 and the spherical groove 4 on the support pile 1, the lower turntable 2 can rotate in all directions, thereby improving the flexibility of the lower turntable 2, facilitating the pulling of the traction assembly 3 to achieve the leveling purpose, and being conducive to improving the construction efficiency of the rotating system.

[0040] In this embodiment, the traction assembly 3 comprises a connecting ring 33, a mounting rack 32 and a winch 31 arranged on the mounting rack 32, the connecting rings 33 of the plurality of traction assemblies 3 are circumferentially distributed on the side of the support pile 1 and located directly below the edge of the lower turntable 2, the mounting racks 32 of the plurality of traction assemblies 3 are circumferentially distributed on the side of the lower turntable 2 and located on the outside of the connecting rings 33, and the traction rope 34 of the winch 31 extends vertically upward to the bottom edge of the lower turntable 2 after passing through the connecting ring 33 and is fixed. Wherein, the traction rope 34 is a steel wire rope. The winch 31 is lifted in position by the mounting rack 32, and the connecting ring 33 changes the pulling direction of the traction rope 34, thereby avoiding the winch 31 being buried in the concrete, and maintaining the downward direction of the traction force. During the pouring of the concrete, the traction assembly 3 maintains the pulling action on the lower turntable 2, which is conducive to maintaining the stability of the lower turntable 2.

[0041] In the embodiment, the mounting frame 32 also serves as a support member of the template 8. When the concrete is poured below the lower turntable 2, the template 8 is installed on the side of the mounting frame 32 facing the support pile body 1. A plurality of mounting frames 32 support the back of the template 8, which is conducive to improving the efficiency and stability of the erection of the template 8, and further improves the construction efficiency and quality of the turn system. The mounting frame 32 can be disassembled and recycled after the construction of the turn system is completed.

[0042] In order to improve the stability of the lower turntable 2, a plurality of first connecting members 6 are distributed circumferentially on the lower turntable 2, and a plurality of second connecting members 7 are distributed circumferentially on the outer periphery of the support pile body 1. When the lower turntable 2 is leveled, the first connecting member 6 is fixedly connected with the second connecting member 7. Specifically, the first connecting member 6 is a connecting steel bar, which is embedded in the inner ring position at the bottom of the lower turntable 2. The second connecting member 7 is a connecting rod, which is embedded radially on the outer periphery of the support pile body 1. The end of the connecting rod away from the support pile body 1 is in the shape of a hook, so as to be fixedly connected with the connecting steel bar.

[0043] The application further discloses a construction method of a large-tonnage turn bridge spherical hinge positioning structure, which comprises the following steps:

[0044] The support pile body 1 is poured and constructed at the construction position. The support pile body 1 serves as the main support structure of the lower turntable 2. Compared with the support frame structure, the support pile body 1 has the advantage of not being easy to deform, and does not need to transport a large amount of steel material, and simplifies the steps of steel structure welding and splicing, which is conducive to reducing the transportation cost and labor cost.

[0045] When the support pile body 1 is constructed, a spherical groove 4 is reserved on the top of the support pile body 1, a steel plate is embedded on the inner wall of the spherical groove 4, the steel plate is matched with the spherical groove 4, and then lubricating oil is coated on the surface of the steel plate, so as to improve the lubrication degree of the inner wall of the spherical groove 4.

[0046] Then, the lower turntable 2 is installed. The lower turntable 2 is hoisted by a crane and placed on the support pile body 1. The spherical turn body 5 at the bottom of the lower turntable 2 is positioned in the spherical groove 4 at the top of the support pile body 1, and the rotation cooperation between the spherical turn body 5 and the spherical groove 4 is completed.

[0047] The traction assembly 3 is installed in place. The connecting ring 33 of the traction assembly 3 and the mounting frame 32 are vertically anchored at the set position of the construction position, and the winch 31 is installed on the mounting frame 32. In the embodiment, a plurality of circumferentially distributed locking rings are embedded at the outer ring position at the bottom of the lower turntable 2. The traction rope 34 of the winch 31 of the traction assembly 3 is connected with the locking ring of the lower turntable 2 after passing through the connecting ring 33.

[0048] Then, multiple groups of winches 31 are started simultaneously, and the winches 31 pull the lower turntable 2 downward to level the lower turntable 2. After the leveling of the lower turntable 2 is completed, the winches 31 keep pulling the lower turntable 2, and then the first connecting member 6 and the second connecting member 7 are connected to further reinforce the lower turntable 2, so as to improve the stability of the lower turntable 2 and reduce the circumferential rotation of the lower turntable 2.

[0049] Then, the formwork 8 is erected on the outer periphery of the lower turntable 2, the formwork 8 is installed on the inner side of the mounting frame 32 of the traction assembly 3, the mounting frame 32 supports the back of the formwork 8, and then the reinforcement binding and concrete pouring steps are performed, and the lower part of the lower turntable 2 is embedded in the concrete structure together with the support pile 1.

[0050] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A large-tonnage swivel bridge ball hinge positioning structure, characterized in that, The utility model relates to a concrete pouring device, including: A lower turntable (2) is provided with a spherical rotary body (5) at the bottom center; A support pile body (1) is vertically arranged and provided with a spherical groove (4) matching the spherical rotary body (5) at the top; A plurality of traction assemblies (3) are distributed on the lateral side of the support pile body (1), the traction ends of the plurality of traction assemblies (3) are connected to the lower end surface of the lower turntable (2), and the lower turntable (2) is leveled by being pulled downward; The traction assembly (3) includes a connecting ring (33), a mounting frame (32) and a winch (31) arranged on the mounting frame (32), the connecting rings (33) of the plurality of traction assemblies (3) are circumferentially distributed on the lateral side of the support pile body (1) and below the lower turntable (2), the mounting frames (32) of the plurality of traction assemblies (3) are circumferentially distributed on the lateral side of the lower turntable (2) and outside the connecting rings (33), and the traction rope (34) of the winch (31) passes through the connecting ring (33) and is connected to the bottom edge of the lower turntable (2).

2. A ball joint positioning structure for a large-tonnage swivel bridge according to claim 1, characterized in that: The connecting ring (33) is located directly below the edge of the lower turntable (2), and the traction rope (34) of the winch (31) extends vertically upward to the bottom edge of the lower turntable (2) after passing through the connecting ring (33) and is fixed.

3. A ball joint positioning structure for a large-tonnage swivel bridge according to claim 2, characterized in that: When concrete is poured below the lower turntable (2), the mounting frames (32) are used to support the back of the formwork (8).

4. A ball joint positioning structure for a large-tonnage swivel bridge according to claim 3, characterized in that: The lower turntable (2) is circumferentially provided with a first connecting member (6), the support pile body (1) is circumferentially provided with a plurality of second connecting members (7), and when the lower turntable (2) is leveled, the first connecting member (6) is fixedly connected with the second connecting member (7).

5. A ball joint positioning structure for a large-tonnage swivel bridge according to claim 4, characterized in that: The first connecting member (6) is a connecting steel bar, the connecting steel bar is embedded in the inner ring position of the bottom of the lower turntable (2), and the second connecting member (7) is a connecting rod, the connecting rod is radially embedded in the outer periphery of the support pile body (1).

6. A construction method of the positioning structure of the ball hinge of a large-tonnage swivel bridge as claimed in claim 5, characterized in that: The utility model includes the following steps: Pouring the support pile body (1) and reserving the spherical groove (4) at the top of the support pile body (1); Installing the lower turntable (2), hoisting the lower turntable (2) onto the support pile body (1), and positioning the spherical rotary body (5) at the bottom of the lower turntable (2) into the spherical groove (4) at the top of the support pile body (1); The traction assembly (3) is installed in place, the traction rope (34) of the winch (31) of the traction assembly (3) is connected to the lower turntable (2) after passing through the connecting ring (33); Starting multiple winches (31), the winches (31) pull the lower turntable (2) downward to level the lower turntable (2); Setting up the formwork (8) on the outer periphery of the lower turntable (2), the formwork (8) is installed on the inner side of the mounting frame (32) of the traction assembly (3), the mounting frame (32) supports the back of the formwork (8), then the steps of reinforcing steel bar binding and concrete pouring are carried out, and the lower part of the lower turntable (2) is embedded in the concrete structure together with the support pile body (1).

7. The construction method of a ball hinge positioning structure of a large-tonnage swivel bridge according to claim 6, characterized in that: After the leveling action of the lower turntable (2) is completed, the traction assembly (3) keeps pulling the lower turntable (2), and then the first connecting member (6) and the second connecting member (7) are connected to reinforce the lower turntable (2).

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