A pier body formwork support rack

Abstract

This utility model discloses a pier formwork support frame, including a crossbeam, several jacks, and several pier support frames. Several of the jacks are positioned below the ends of the crossbeam. A portion of the pier support frames is positioned below the jacks, and another portion is positioned on the pier formwork and connected to the crossbeam. The jacks are connected to the crossbeam, the jacks to the pier support frames, and the pier support frames to the crossbeam, respectively, by bolts. The pier formwork support frame provided by this utility model can achieve high precision, high efficiency, and low cost in pile pier construction, improve concrete forming quality, and reduce labor input.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a support frame for pier formwork. Background Technology

[0002] In construction engineering, the pier is a common main structure in high-speed railway construction. As a key structure connecting the abutment and the foundation stone, the construction quality of the pier directly affects structural safety. With the increasing demands for high-standard construction and industrialized building, the shortcomings of traditional 50cm pier formwork support, such as high material consumption and large errors, are becoming increasingly prominent, while the market urgently needs standardized and high-precision formwork positioning. Currently, 50cm pier construction typically uses angle iron or steel bars for support, with threaded steel bars used to support the pier formwork. This approach has the following drawbacks: 1. It requires the use of angle iron or threaded steel bars for support every time, resulting in waste; 2. The angle iron or steel bar support has poor precision and is prone to deformation, leading to deviations in the concrete forming dimensions of the 50cm pier and exposed reinforcement at the abutment interface; 3. It lacks reliable positioning devices, making it easy for deviations during formwork installation to exceed specifications, resulting in dimensional inaccuracies in the pier. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a pier formwork support platform, which can achieve high precision, high efficiency and low cost in pier construction (especially 50cm piers), improve the quality of concrete forming and reduce labor input.

[0004] The technical solution provided by this utility model is as follows:

[0005] A pier formwork support frame includes a crossbeam, a plurality of jacks, and a plurality of pier support frames. The plurality of jacks are disposed below the ends of the crossbeam, a portion of the pier support frames are disposed below the jacks, and another portion of the pier support frames are disposed on the pier formwork and connected to the crossbeam. The jacks are detachably connected to the crossbeam, to the jacks to the pier support frames, and to the pier support frames to the crossbeam.

[0006] Preferably, there are at least two crossbeams arranged in parallel to each other.

[0007] Preferably, the crossbeam is a channel steel structure with a slot on it.

[0008] Preferably, the detachable method includes one of bolt connection, wedge snap, or magnetic connection.

[0009] This invention has the following advantages over the prior art:

[0010] 1. High efficiency turnover: The pier formwork support frame of this utility model adopts a detachable structure. After use, the pier formwork support frame can be dismantled. The size after dismantling is within 2m, which can be easily turnover.

[0011] 2. Improved Precision: The pier formwork support frame of this utility model adopts a structural design of bolted connection of crossbeams, pier support frame and jacks. The height and width are adjusted by bolts, which can make the positioning system error ≤5mm, the concrete forming size deviation controlled within ±5mm, and the product surface flatness ≤5mm. It can be effectively applied to the construction of various pier sizes and foundation heights, and can significantly improve the precision.

[0012] 3. Reduced costs: By adopting the pier formwork support frame of this utility model, an average of 80kg of steel components can be reduced for each 50cm pier, and the consumption of steel components for the entire project can be reduced by about 300t. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the pier body template support frame in this embodiment of the utility model;

[0015] Figure 2 for Figure 1 Top view.

[0016] Figure label:

[0017] 1. Crossbeam; 2. Jack; 3. Pier support platform; 4. Pier formwork. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1 , 2As shown, this utility model embodiment provides a pier formwork support frame, mainly used for forming support during concrete pouring. It includes a crossbeam 1, four jacks 2, and eight pier support frames 3. The four jacks 2 are located below the ends of the crossbeam 1. The four small jacks 2 serve as supports to adjust the support height. Each jack 2 has four bolts at the top and bottom connected to the crossbeam 1 and the pier support frame 3 to ensure its stability. The four pier support frames 3 are located below the jacks 2. The other four pier support frames 3 are mounted on the pier formwork 4 and connected to the crossbeam 1. The pier formwork 4 serves as the main support. The slots and support frames of the pier formwork 4 can ensure that it can be fixed and adjusted by the pier support frames 3. The jacks 2 are connected to the crossbeam 1, the jacks 3 are connected to the pier support frames 3, and the pier support frames 3 are connected to the crossbeam 1 by bolts, which facilitates the adjustment of the position of the crossbeam 1 and the jacks 2.

[0020] In this embodiment, there are two crossbeams 1 arranged parallel to each other. The crossbeams 1 are channel steel structures with slots on them, which can be connected to the pier support frame 3 and their length can be adjusted to accommodate piers and foundations of various sizes.

[0021] In this embodiment, the crossbeam 1 and the pier support frame 3 can be made of aluminum alloy or composite materials (such as glass fiber reinforced plastic) to reduce weight (40% weight reduction compared to steel formwork) and facilitate manual handling.

[0022] In this embodiment, taking the construction of 1,000 50cm piers as an example, the pier formwork support frame of this embodiment can save about 320,000 yuan in costs compared with traditional steel components.

[0023] This embodiment uses a 50cm pier formwork for bridge engineering as an example, and the installation is carried out according to the following process steps:

[0024] 1. Installation of 50cm pier formwork 4: Based on the surveyor's layout of the pier formwork 4 position, install the 50cm pier formwork 4;

[0025] 2. Verify pier formwork 4: After pier formwork 4 is assembled and its position is confirmed to be correct, pier formwork 4 can be verified (pier formwork 4 must meet the requirements of the "Code for Acceptance of Construction Quality of Concrete Structures" (GB50204-2015) after installation, with axial displacement ≤5mm and cross-sectional dimension deviation ±5mm).

[0026] 3. Installation of pier support frame 3: After the pier formwork 4 is checked, the pier support frame 3 can be installed.

[0027] 4. Fixing the pier support frame 3: After the pier support frame 3 is installed, it is fixed to the pier cap formwork. The distance and height to the pier cap formwork can be adjusted by bolts.

[0028] 5. Concrete pouring: After the foundation concrete is poured, pour 50cm of it at a time after a four-hour interval. During the construction process, observe the deformation and deviation of the 50cm pier formwork.

[0029] 6. Dismantling and relocation: After the concrete has set, the bolts and supports can be removed, and the concrete can be cleaned and moved to the next 50cm pier for construction.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A formwork support scaffold for a pier body, characterised in that, The pier body support rack is connected with the cross beam through a detachable mode.

2. The formwork support tower of claim 1, wherein, The number of the cross beams is at least two and the cross beams are arranged in parallel.

3. The formwork support tower of claim 2, wherein, The cross beam is in a channel steel structure, and a clamping groove is arranged on the channel steel.

4. The pier formwork support frame according to any one of claims 1-3, characterized in that, The detachable mode includes one of bolt connection, wedge buckle or magnetic connection.

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