A climbing formwork frame structure applied to a variable cross-section hollow thin-walled high-pier hydraulic climbing formwork structure

Abstract

The utility model discloses a kind of applied to the hydraulic climbing formwork structure of variable cross-section hollow thin-walled high pier, climbing formwork frame structure, including climbing formwork frame and support bracket, the support bracket is anchored on pier body concrete, the climbing formwork frame includes crossbeam, the both ends of the crossbeam are equipped with vertical rod, hydraulic jack is installed in the vertical rod inside lower end, and the bottom of hydraulic jack is installed on support bracket, the middle part of crossbeam is equipped with derrick, the side surface lower end of derrick is equipped with two parallelly arranged adjusting I-beams, the both ends of adjusting I-beam are connected with the inner formwork of formwork frame. The utility model structure is based on applicable to the inside and outside form synchronous lifting type climbing formwork structure of variable cross-section hollow thin-walled high pier, the method for realizing the variable cross-section of climbing formwork structure is simplified, while realizing the inside and outside formwork synchronous lifting of climbing formwork structure, the climbing of climbing formwork structure is optimized, so that climbing formwork structure does not need to set guide rail and other components, reduce the embedded part on pier body.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering construction technology, specifically a climbing formwork structure applied to a hydraulic climbing formwork structure for variable cross-section hollow thin-walled high piers. Background Technology

[0002] With the increasing density of my country's highway and railway networks, it is inevitable that they will cross areas with significant elevation differences, leading to a growing number of high bridge piers. Thin-walled high piers, compared to other types of piers, possess advantages such as high load-bearing capacity, low cost, and good seismic performance, and are widely used in high-pier, long-span bridge projects. When the piers are high (over 60m), variable cross-section hollow thin-walled high piers offer superior mechanical performance and economic efficiency compared to uniform cross-section hollow thin-walled high piers. Construction methods for high piers include climbing formwork and flip-formwork, with hydraulic climbing formwork being widely used due to its higher degree of mechanization and lower site requirements. However, climbing formwork structures applied to the construction of variable cross-section hollow thin-walled high piers are relatively few, and the methods for achieving variable cross-sections in high piers are quite complex, necessitating optimization. Therefore, this application provides a climbing formwork frame structure for hydraulic climbing formwork of variable cross-section hollow thin-walled high piers to address the aforementioned problems. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a climbing formwork structure for hydraulic climbing formwork structures of hollow thin-walled high piers with variable cross-section. The structure is based on a climbing formwork structure with synchronous lifting of inner and outer molds suitable for hollow thin-walled high piers with variable cross-section. It simplifies the method of realizing variable cross-section of the climbing formwork structure, and realizes synchronous lifting of inner and outer molds of the climbing formwork structure. It optimizes the climbing of the climbing formwork structure, so that the climbing formwork structure does not need to set up guide rails and other components, and reduces the number of embedded parts on the pier body. It can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a climbing formwork structure applied to a hydraulic climbing formwork structure for a variable cross-section hollow thin-walled high pier, comprising a climbing formwork frame and supporting brackets. The supporting brackets are anchored to the pier concrete. The climbing formwork frame includes a crossbeam, with vertical rods installed at both ends of the crossbeam. A hydraulic jack is installed at the lower end of the inner part of the vertical rod, and the bottom of the hydraulic jack is installed on the supporting bracket. A suspension rod is provided in the middle of the crossbeam, and two parallel adjusting I-beams are provided at the lower side of the suspension rod. The two ends of the adjusting I-beams are connected to the inner formwork of the formwork frame.

[0005] As a preferred technical solution of this utility model, both ends of the crossbeam are provided with adjustment holes, and the bolt and nut structure at the top of the vertical rod is installed in the adjustment holes, and the crossbeam is made of HN400×200 type I-beam.

[0006] As a preferred technical solution of this utility model, the crossbeam is made of 22# "[]" type channel steel, and the vertical rod is connected to the top of the hydraulic jack through the jack pin.

[0007] As a preferred technical solution of this utility model, the lifting rod is made of 22# "][" type channel steel.

[0008] As a preferred embodiment of this utility model, the hanger rod and the corresponding middle part of the two adjusting I-beams are provided with a horizontally arranged internal template hydraulic adjuster.

[0009] As a preferred embodiment of this utility model, the web of the adjusting I-beam is provided with evenly distributed holes for adjusting the distance between the two inner template clamps.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model illustrates a climbing formwork structure applied to a hydraulic climbing formwork structure for variable cross-section hollow thin-walled high piers. This climbing formwork is a crucial force-transfer component in the hydraulic climbing formwork structure used in the construction of variable cross-section hollow thin-walled high piers. The bottom of the climbing formwork is supported on the supporting brackets of the climbing formwork structure, and the load of the entire climbing formwork structure is transferred to the brackets through the vertical rods of the climbing formwork. Adjustment holes are provided on the crossbeams, allowing adjustment of the spacing of the upper part of the vertical rods according to the pier slope to meet the requirements of the variable cross-section of the high pier. Hydraulic jacks are installed inside the vertical rods of the climbing formwork to achieve the climbing of the formwork structure. Simultaneously, hanging rods are installed on the crossbeams to achieve synchronous lifting of the inner and outer formwork. This optimized climbing of the climbing formwork structure eliminates the need for guide rails and other components, reducing the number of embedded parts on the pier body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the climbing formwork frame of this utility model;

[0014] Figure 3 This is a partial structural schematic diagram of the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of this utility model in use.

[0016] In the diagram: 1. Horizontal beam, 2. Vertical rod, 3. Hydraulic jack, 4. Hanging rod, 5. Adjustable I-beam, 6. Support bracket, 7. Adjustment hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a climbing formwork structure applied to a hydraulic climbing formwork structure for a variable cross-section hollow thin-walled high pier, including a climbing formwork frame and supporting brackets 6. The supporting brackets 6 are anchored to the concrete of the pier body. The climbing formwork frame includes a crossbeam 1, with vertical rods 2 installed at both ends of the crossbeam 1. A hydraulic jack 3 is installed at the lower end of the inner part of the vertical rod 2, and the bottom of the hydraulic jack 3 is installed on the supporting bracket 6. The climbing formwork frame is lifted by the lifting of the hydraulic jack 3. A hanging rod 4 is provided in the middle of the crossbeam 1, and two parallel adjusting I-beams 5 are provided at the lower side of the hanging rod 4. The two ends of the adjusting I-beams 5 are connected to the inner formwork of the formwork frame for the lifting of the inner formwork and the transfer of the load of the inner formwork.

[0019] Furthermore, both ends of the crossbeam 1 are provided with adjustment holes 7, and the bolt and nut structure at the top of the vertical rod 2 is installed in the adjustment holes 7. The crossbeam 1 is made of HN400×200 type I-beam, and the spacing between the upper part of the two vertical rods 2 can be adjusted along the adjustment holes 7 according to the slope of the pier body to meet the variable cross section requirements.

[0020] Furthermore, the crossbeam 1 is made of 22# "[]" shaped channel steel, and the vertical rod 2 is connected to the top of the hydraulic jack 3 through a jack pin.

[0021] Furthermore, the hanger rod 4 is made of 22# "][" type channel steel.

[0022] Furthermore, the hanger 4 and the corresponding middle part of the two adjusting I-beams 5 are provided with a horizontally arranged internal template hydraulic adjuster.

[0023] During construction, the inner formwork frame is made of double-channel steel, which is connected to the horizontal ribs of the inner formwork. The upper and lower ends are connected to the adjusting I-beams, and the middle is connected to the hydraulic adjuster of the inner formwork.

[0024] Furthermore, evenly distributed holes are provided on the web of the adjusting I-beam 5 to adjust the spacing between the two inner template clamps, so as to meet the requirements of inner template demolding and mold closing as well as variable cross-section.

[0025] This utility model is an important force-transfer component in a hydraulic climbing formwork structure used in the construction of variable cross-section hollow thin-walled high piers. The bottom of the climbing formwork frame is supported on the support bracket 6 of the climbing formwork structure, and the load of the entire climbing formwork structure is transferred to the support bracket 6 through the vertical rod 2 of the climbing formwork frame. Adjustment holes are provided on the crossbeam 1, which can adjust the spacing of the upper part of the vertical rod 2 according to the slope of the pier to meet the requirements of the variable cross-section of the high pier. Hydraulic jacks 3 are installed inside the vertical rod 2 of the climbing formwork frame to realize the climbing of the climbing formwork structure. At the same time, the crossbeam 1 is equipped with a hanging rod 4 to realize the synchronous lifting of the inner and outer formwork. The climbing of the climbing formwork structure is optimized, so that the climbing formwork structure does not need to be equipped with guide rails and other components, reducing the number of embedded parts on the pier body.

[0026] This utility model mainly consists of components such as vertical rod 2, horizontal beam 1, suspension rod 4, and adjusting I-beam 5. The following points should be noted during construction:

[0027] The vertical rod 2 is supported on the corbel 6 anchored to the concrete of the pier body, transferring the load of the entire structure to the corbel 6. The steel used should meet the strength and stiffness requirements. Hydraulic jacks 3 are installed inside the vertical rod 2 for the climbing formwork structure to ascend. The hydraulic jacks 3 are bound to the vertical rod 2 by jack pins. Figure 2 As shown in the middle position of the vertical rod, the position of the jack pin should be set according to the specifications of the hydraulic jack 3 required for the climbing formwork structure; when applied to the construction of high piers of different sizes, each component of the climbing formwork should be replaced with higher strength steel according to the actual load conditions.

[0028] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A climbing formwork structure applied to a hydraulic climbing formwork structure for a hollow thin-walled high pier with variable cross-section, comprising a climbing formwork frame and supporting brackets (6), characterized in that: The supporting bracket (6) is anchored on the concrete of the pier body. The climbing formwork includes a crossbeam (1). Both ends of the crossbeam (1) are equipped with vertical rods (2). The lower end of the vertical rod (2) is equipped with a hydraulic jack (3). The bottom of the hydraulic jack (3) is installed on the supporting bracket (6). The middle part of the crossbeam (1) is provided with a hanging rod (4). The lower side of the hanging rod (4) is provided with two parallel adjusting I-beams (5). The two ends of the adjusting I-beams (5) are connected to the inner formwork of the formwork frame.

2. The climbing formwork structure applied to a variable cross-section hollow thin-walled high pier hydraulic climbing formwork structure according to claim 1, characterized in that: The crossbeam (1) has adjustment holes (7) at both ends, and the bolt and nut structure at the top of the vertical rod (2) is installed in the adjustment holes (7). The crossbeam (1) is made of HN400×200 type I-beam.

3. The climbing formwork structure applied to a hydraulic climbing formwork structure for a variable cross-section hollow thin-walled high pier as described in claim 2, characterized in that: The crossbeam (1) is made of 22#"[]" channel steel, and the vertical rod (2) is connected to the top of the hydraulic jack (3) by a jack pin.

4. The climbing formwork structure applied to a variable cross-section hollow thin-walled high pier hydraulic climbing formwork structure according to claim 1, characterized in that: The lifting rod (4) is made of 22#"][" type channel steel.

5. The climbing formwork structure applied to a variable cross-section hollow thin-walled high pier hydraulic climbing formwork structure according to claim 1, characterized in that: The hanger (4) is provided with a horizontally arranged internal template hydraulic adjuster at the corresponding part of the middle of the two adjusting I-beams (5).

6. The climbing formwork structure applied to a variable cross-section hollow thin-walled high pier hydraulic climbing formwork structure according to claim 1, characterized in that: The web of the adjusting I-beam (5) has evenly distributed holes for adjusting the distance between the two inner template clamps.

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