Upward moving formwork and double-function supporting leg structure thereof

Abstract

The double-function supporting leg structure is arranged on a pier top and comprises a lifting assembly and a falling frame assembly which can be separated, the lifting assembly is assembled above the falling frame assembly, and the falling frame assembly is connected with the pier top; the lifting assembly comprises a lifting stand column and a hanging beam assembled on the top of the lifting stand column, and lifting jacks are arranged at the two ends of the hanging beam. The landing frame assembly comprises a landing leg stand column and a landing leg parallel connection part assembled on the top of the landing leg stand column, and connection openings used for installing cantilever beams are formed in the two ends of the landing leg parallel connection part. According to the dual-function supporting leg structure of the ascending type movable formwork, function switching is achieved through structural change, the ascending type movable formwork can be rapidly switched between formwork lifting and assembling and formwork using, and the dual-function supporting leg structure is suitable for the improved ascending type movable formwork and the assembling method thereof.

Description

Technical Field

[0001] The present application relates to the technical field of road and bridge construction, and in particular to an upward movable formwork and a dual-function leg structure thereof. Background Art

[0002] The upward mobile formwork assembly method mostly adopts the assembly bracket set up on the ground up to the top of the pier, and then the formwork main beam, nose beam, upper crossbeam, lower hanging beam and formwork system are directly assembled in situ on the assembly bracket. However, this method is only applicable to short pier structures. Under the condition of high pier body, the mobile formwork is more dangerous and difficult to assemble in situ at high altitude. 1. A large number of high-altitude operations not only affect the construction efficiency and quality, but also require workers to have strong safety awareness and operating skills. 2. The safety risk of high-altitude hoisting of mobile formwork is high. High-altitude hoisting requires a large-tonnage crane, and during the hoisting construction, due to the high hoisting height, the driver's field of vision is limited, and skilled command and multi-point observation are required to ensure the quality of hoisting and reduce construction risks. 3. The quality control of the connection between segments is difficult. The high-altitude segment connection has poor control in terms of formwork line type and flatness, and the construction efficiency is low.

[0003] A method for assembling an improved upward movable formwork requires providing a matching pier top buttress structure. Utility Model Content

[0004] In view of the shortcomings of the existing methods, the present application proposes a dual-function leg structure that can switch functions between the lifting stage and the use stage of the upward movable formwork, so as to solve the technical problem of the inconvenience of high-altitude assembly of the upward movable formwork in the related art.

[0005] In the first aspect, the present application provides a dual-function leg structure of an upward movable formwork, which is arranged on the top of a pier, and includes a lifting assembly and a landing frame assembly that can be separated, the lifting assembly is installed above the landing frame assembly, and the landing frame assembly is connected to the top of the pier; the lifting assembly includes a lifting column and a hanging beam installed on the top of the lifting column, and lifting jacks are provided at both ends of the hanging beam; the landing frame assembly includes a leg column and a leg parallel joint installed on the top of the leg column, and connecting ports for installing cantilever beams are provided at both ends of the leg parallel joint.

[0006] Optionally, embedded parts are provided on the pier top for connecting the lifting columns and / or leg columns.

[0007] Further optionally, the lifting column is directly connected to the pier top, or connected to the top of the leg column.

[0008] Furthermore, the landing frame assembly includes a pair of leg columns arranged along the transverse direction of the bridge, the leg parallel joint is arranged on the top of the leg column, and a detachable connecting piece is arranged on the top surface of the leg parallel joint for coaxially splicing a pair of lifting columns with the leg columns, and the other lifting columns of the lifting assembly are directly connected to the pier top.

[0009] Optionally, the detachable connector includes a clamp structure, a flange structure or a slot structure.

[0010] Furthermore, the landing frame assembly includes two pairs of the leg columns arranged along the transverse bridge direction, and the leg parallel connections in the transverse bridge direction are arranged on the tops of the leg columns. The lifting assembly includes two pairs of the lifting columns arranged along the transverse bridge direction and connected to the pier tops. The leg columns are folded and arranged in the space enclosed by the lifting columns, and the leg parallel connections extend from between the lifting columns.

[0011] Optionally, at least one group of connecting assemblies is provided between the lifting columns, and the supporting leg parallel connection does not interfere with the connecting assemblies.

[0012] Optionally, the length of the support leg parallel connection is smaller than the transverse distance between the lifting jacks, and the length of the support leg parallel connection after being connected to the cantilever beam is larger than the transverse distance between the lifting jacks.

[0013] Preferably, a reinforcing horizontal link and a reinforcing diagonal brace are provided between the suspension beam and the lifting column.

[0014] In a second aspect, the present application provides an upward movable formwork, which includes temporary legs and middle legs, and is characterized in that the temporary legs and middle legs respectively adopt the dual-function leg structure of the upward movable formwork as described above.

[0015] The beneficial technical effects brought about by the technical solution provided by the embodiment of the present application include:

[0016] (1) The dual-function leg structure of the upward movable mold frame of the present application realizes function switching by changing its structure, so that the upward movable mold frame can quickly switch between mold frame lifting assembly and mold frame use, and is suitable for the improved upward movable mold frame assembly method.

[0017] (2) The dual-function leg structure of the upward movable formwork of the present application can switch its functions by simply disassembling the lifting component, and the lifting component is easy to disassemble, which helps to improve work efficiency.

[0018] (3) The dual-function leg structure of the upward movable formwork of the present application enables the middle leg of the original upward movable formwork to be used in the dual-function leg structure, which requires little modification to the existing upward movable formwork system and is conducive to its promotion and use.

[0019] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A schematic structural diagram of a dual-function leg structure of an upward movable mold frame provided in an embodiment of the present application;

[0022] Figure 2 for Figure 1 A schematic diagram of the side structure of

[0023] Figure 3 A schematic structural diagram of another dual-function leg structure of an upward movable mold frame provided in an embodiment of the present application;

[0024] Figure 4 for Figure 3 Schematic diagram of the side structure. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the implementation methods described below in conjunction with the drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0026] Those skilled in the art will appreciate that, unless specifically stated, the "said" and "the" used herein may also include plural forms. It should be further understood that the term "including" used in the specification of the present application refers to the presence of the elements and / or components, but does not exclude the implementation of other features, information, data, steps, operations, elements, components and / or combinations thereof supported by the technical field. The term "and / or" used herein refers to at least one of the items defined by the term, for example, "A and / or B" may be implemented as "A", or as "B", or as "A and B".

[0027] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0028] refer to Figures 1 to 4 The dual-function leg structure of the upward movable formwork of the present application is used to be set on the top of the pier to assist in the lifting and lowering of the upward movable formwork during the assembly process, and after the lowering is completed, the function is switched by splitting to become a part of the upward movable formwork.

[0029] Specifically, the dual-function leg structure of the upward movable formwork of the present application includes a lifting assembly 1 and a landing assembly 2, wherein the lifting assembly 1 is assembled above the landing assembly 2, and the landing assembly 2 is connected to the pier top; and the two are connected by a detachable connector 222.

[0030] The lifting assembly 1 includes a lifting column 11 and a hanging beam 12 mounted on the top of the lifting column 11, and lifting jacks 13 are provided at both ends of the hanging beam 12; the landing assembly 2 includes a leg column 21 and a leg flat joint 22 mounted on the top of the leg column 21. Furthermore, embedded parts are pre-set on the top of the pier where the dual-function leg structure of the present application is installed, which are used to connect the lifting column 11 and the leg column 21.

[0031] In one possible implementation, Figure 1 and Figure 2 As shown, the landing frame assembly 2 includes a pair of leg columns 21 arranged along the transverse bridge direction, a leg parallel 22 is arranged on the top of the leg column 21, and a detachable connector 222 is arranged on the top surface of the leg parallel 22, which is used for a pair of lifting columns 11 to be coaxially spliced ​​with the leg column 21. The detachable connector 222 can adopt a clamp structure, a flange structure or a slot structure, and the purpose is to fix the lifting column 11 on the top surface of the leg parallel 22, so that the lifting column 11 mainly bears downward pressure and can resist the bending moment on both sides. The lifting assembly 1 in this embodiment also includes another pair of lifting columns 11, which are directly connected to the pier top through embedded parts, that is, a pair of leg columns 21 and a pair of lifting columns 11 are connected to the pier top at the same time. Correspondingly, two pairs of embedded parts of the pier top are arranged along the transverse bridge direction, and in order to achieve force balance, the setting positions of the two pairs of embedded parts can be the same width in the transverse bridge direction.

[0032] Furthermore, the tops of the two pairs of lifting columns 11 of the lifting assembly 1 are flush to facilitate the assembly of the hanging beam 12. The hanging beam 12 in this embodiment can be a structure composed of a pair of I-beams that cross the tops of the lifting columns 11 in a transverse direction, or it can be a steel section that crosses the tops of the lifting columns 11 in a transverse direction. The transverse length of the hanging beam 12 should exceed the transverse width of the pier and meet the requirements for setting up the lifting jacks 13: the transverse spacing of the lifting jacks 13 at both ends of the hanging beam 12 meets the requirements for the overall lifting of the upward movable formwork. If the lifting jacks 13 lift the main beam of the upward movable formwork through the steel strands, the transverse spacing of the lifting jacks 13 cannot be less than the width of a pair of main beams of the upward movable formwork. If more than one lifting jack 13 is set on one side of the hanging beam 12, the transverse spacing is calculated with the single-side lifting point as the reference point. Correspondingly, the length of the leg tie 22 should be less than the transverse distance of the lifting jack 13 to avoid interference between the lifting jack 13 and the leg tie 22 when performing the lifting operation; after the cantilever beams 23 are installed at both ends of the leg tie 22, the total length of the leg tie 22 including the cantilever beams 23 should be greater than the transverse distance of the lifting jack 13, so that the upward lifting formwork can be directly placed on the leg tie 22. Therefore, the two ends of the leg tie 22 need to reserve a connection port 221, and the cantilever beam 23 is connected to the connection port 221 by high-strength bolts and / or welding.

[0033] Furthermore, in order to improve the stability of the lifting beam 12, a reinforcing structure is set between the lifting beam 12 and the lifting column 11. For example, reinforcing diagonal braces 16 are set at both ends of the lifting beam 12 and at a lower position of the top of the lifting column 11. For another example, a reinforcing flat joint 15 is set between the connection points of the reinforcing diagonal braces 16 of the lifting column 11.

[0034] Furthermore, a connection assembly 14 is provided between the lifting columns 11. A group of connection assemblies 14 can be understood as parallel joints and diagonal braces with mutual connection points arranged at the same horizontal height, including parallel joints and diagonal braces arranged between the lifting columns 11 in the transverse direction of the bridge, and parallel joints and diagonal braces arranged between the lifting columns 11 in the longitudinal direction of the bridge. Preferably, a group of connection assemblies 14 is provided between the reinforcing parallel joints 15 and the leg parallel joints 22, and the group of connection assemblies 14 does not interfere with the reinforcing parallel joints 15 and the leg parallel joints 22. A group of connection assemblies 14 can be selectively provided in the lifting column 11 section vertically parallel to the landing frame assembly 2, but the connection assemblies 14 are avoided to be provided between any structure of the landing frame assembly 2 and the lifting column 11, so as to reduce the workload of disassembly. Further preferably, a group of connection assemblies 14 can also be provided between the leg columns 21 and the leg parallel joints 22 of the landing frame assembly 2. The specific connection structure can be the same as that of the lifting assembly 1, or other connection structures can be adopted according to the actual force conditions.

[0035] In this embodiment, in order to meet the force requirements under different working conditions, the lifting column 11 adopts Φ820×10mm steel pipe, the hanging beam 12 adopts I56a steel and steel plate structure, the connecting component 14 at the lifting component 1 is made of Φ400×6mm steel pipe, the support leg column 21 and the support leg parallel joint 22 are respectively made of steel plate II type components, and the connecting component 14 at the landing frame component 2 is made of I20a steel.

[0036] When the dual-function leg structure is performing the lifting operation, the lifting component 1 and the landing frame component 2 remain connected as a whole to provide sufficient force-bearing structure and lifting height; after the upward movable formwork is lifted to the landing frame to the landing frame component 2, it is necessary to disassemble the connection structure between the lifting component 1 and the landing frame component 2, and the connection structure between the lifting component 1 and the pier top, and then remove the lifting component 1 from the pier top as a whole by a crane, and retain the landing frame component 2 to continue to perform subsequent processes. In this embodiment, the landing frame component 2 with only a pair of leg columns 21 is used as a temporary leg 2a at the starting end of the upward movable formwork.

[0037] Another possible implementation is, Figure 3 and Figure 4 As shown, the landing gear assembly 2 includes two pairs of leg columns 21 arranged along the transverse direction of the bridge, and a leg parallel connection 22 is arranged on the top of the leg columns 21. The lifting assembly 1 includes two pairs of lifting columns 11 arranged along the transverse direction of the bridge and directly connected to the pier top. The leg columns 21 are retracted and arranged in the space enclosed by the lifting columns 11, that is, the two pairs of leg columns 21 and the two pairs of lifting columns 11 are connected to the pier top at the same time. Correspondingly, four pairs of embedded parts of the pier top are arranged along the transverse direction of the bridge, two pairs of which are arranged at the edge close to the pier column for connecting with the lifting column 11, and the remaining two pairs are arranged relatively gathered at the center of the pier column for connecting with the leg columns 21.

[0038] In this embodiment, the configuration of the hanging beam 12 in the lifting assembly 1 is the same as that in the previous embodiment. The configuration of the connecting assembly 14 of the lifting assembly 1 is different from that in the previous embodiment in that two sets of connecting assemblies 14 can be provided in the lifting assembly 1, but the vertical distance between the two sets of connecting assemblies 14 must meet the setting height of the leg parallel connection 22 of the landing assembly 2, so that the leg parallel connection 22 of the landing assembly 2 does not interfere with the connecting assembly 14, and can extend from the spacing between the lifting columns 11 to both sides of the cross bridge.

[0039] Furthermore, the landing frame assembly 2 of this embodiment is used to serve as the middle leg 2b of the upward movable formwork. Therefore, the structure of the landing frame assembly 2 needs to meet the force requirements and use requirements of the middle leg 2b. In the prior art, the middle leg 2b needs to change the anchoring position following the movement of the upward movable formwork. In order to facilitate disassembly, a number of anchoring points are set on the leg parallel joint 22 section between the leg columns 21, which are used to anchor with the pier column through steel strands or steel wires to form a temporary anchoring structure. The implementation form of the connection port 221 at both ends of the leg parallel joint 22 in this embodiment is similar to that of the previous embodiment. The connection port 221 realizes the connection of the cantilever beam 23 through high-strength bolts and / or welding. The structure of the cantilever beam 23 is adapted to the structure of the connected leg parallel joint 22. Preferably, the leg parallel joint 22 and the corresponding cantilever beam 23 can be made of the same steel.

[0040] In this embodiment, in order to meet the force requirements of different working conditions, the lifting column 11 adopts Φ820×10mm steel pipe, the hanging beam 12 adopts the structure of I56a industrial steel and steel plate, the connecting component 14 at the lifting component 1 is made of Φ400×6mm steel pipe, and the landing frame component 2 is configured according to the requirements of the middle leg 2b.

[0041] The lifting assembly 1 and the landing frame assembly 2 in this embodiment are respectively fixed on the pier top, and there is no direct connection point or connection structure between the two. Therefore, when the dual-function leg structure is performing the lifting operation, the lifting assembly 1 and the landing frame assembly 2 are fixed on the pier top against each other to provide sufficient force-bearing structure and lifting height; after the upward movable formwork is lifted to the landing frame to the landing frame assembly 2, the connection structure between the lifting assembly 1 and the pier top is disassembled, as well as the connection assembly 14 whose disassembly will be hindered by the landing frame assembly 2, and then the lifting assembly 1 is removed from the pier top as a whole by a crane, and the landing frame assembly 2 is retained to continue to perform subsequent processes. In this embodiment, the landing frame assembly 2 with two pairs of leg columns 21 is used as the middle leg 2b of the upward movable formwork.

[0042] The above two embodiments can be simultaneously applied to the same upward mobile formwork, specifically a dual-function leg structure of an upward mobile formwork, which is arranged on the top of the pier, wherein it includes a lifting assembly 1 and a landing assembly 2 that can be separated, the lifting assembly 1 is mounted above the landing assembly 2, and the landing assembly 2 is connected to the top of the pier; the lifting assembly 1 includes a lifting column 11 and a hanging beam 12 mounted on the top of the lifting column 11, and lifting jacks 13 are arranged at both ends of the hanging beam 12; the landing assembly 2 includes a leg column 21 and a leg parallel joint 22 mounted on the top of the leg column 21, and connecting ports 221 for installing cantilever beams 23 are arranged at both ends of the leg parallel joint 22. The dual-function leg structure of the upward mobile formwork of the present application realizes function switching through the change of its structure, so that the upward mobile formwork can quickly switch between the formwork lifting assembly and the formwork use, and is suitable for the improved upward mobile formwork and its assembly method.

[0043] In the description of the present application, the directions or positional relationships indicated by words such as "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the exemplary directions or positional relationships shown in the accompanying drawings. They are for the convenience of describing or simplifying the description of the embodiments of the present application, and do not indicate or imply that the referred device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0044] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0045] In the description of this application, it should be noted that, 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0047] The above is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the scheme of the present application, other similar implementation methods based on the technical ideas of the present application are also within the protection scope of the embodiments of the present application.

Claims

1. A dual-function leg structure of an upward movable formwork, arranged on the top of a pier, characterized in that: It includes a lifting assembly and a landing frame assembly that can be separated, the lifting assembly is installed above the landing frame assembly, and the landing frame assembly is connected to the pier top; the lifting assembly includes a lifting column and a hanging beam installed on the top of the lifting column, and lifting jacks are provided at both ends of the hanging beam; the landing frame assembly includes a leg column and a leg parallel joint installed on the top of the leg column, and connecting ports for installing cantilever beams are provided at both ends of the leg parallel joint.

2. The dual-function leg structure of the upward movable mold frame according to claim 1, characterized in that: The pier top is provided with embedded parts for connecting the lifting columns and / or the supporting leg columns.

3. The dual-function leg structure of the upward movable mold frame according to claim 2, characterized in that: The lifting column is directly connected to the pier top, or connected to the top of the leg column.

4. The dual-function leg structure of the upward movable mold frame according to claim 3, characterized in that: The landing frame assembly includes a pair of leg columns arranged along the transverse direction of the bridge, the leg parallel joint is arranged on the top of the leg column, and a detachable connecting piece is arranged on the top surface of the leg parallel joint for coaxially splicing a pair of lifting columns with the leg columns, and the other lifting columns of the lifting assembly are directly connected to the pier top.

5. The dual-function leg structure of the upward movable mold frame according to claim 4, characterized in that: The detachable connector includes a hoop structure, a flange structure or a slot structure.

6. The dual-function leg structure of the upward movable mold frame according to claim 3, characterized in that: The landing frame assembly includes two pairs of the leg columns arranged along the transverse bridge direction, and the leg parallel connections in the transverse bridge direction are arranged on the tops of the leg columns. The lifting assembly includes two pairs of the lifting columns arranged along the transverse bridge direction and connected to the pier tops. The leg columns are folded and arranged in the space enclosed by the lifting columns, and the leg parallel connections extend from between the lifting columns.

7. The dual-function leg structure of the upward movable mold frame according to claim 1, characterized in that: At least one group of connecting components is arranged between the lifting columns, and the supporting legs are parallelly connected and do not interfere with the connecting components.

8. The dual-function leg structure of the upward movable mold frame according to claim 1, characterized in that: The length of the support leg parallel connection is less than the transverse distance between the lifting jacks, and the length of the support leg parallel connection after being connected to the cantilever beam is greater than the transverse distance between the lifting jacks.

9. The dual-function leg structure of the upward movable mold frame according to claim 1, characterized in that: A reinforced flat joint and a reinforced diagonal brace are arranged between the hanging beam and the lifting column.

10. An upward movable formwork, comprising temporary legs and middle legs, characterized in that: The temporary legs and the middle legs respectively adopt the dual-function leg structure of the upward movable formwork as described in any one of claims 1 to 9.

Images