Pull rod type formwork framework based on steel-concrete bridge body wet joint pouring

Abstract

The utility model discloses a pull rod type formwork framework based on pouring of a wet joint of a reinforced concrete bridge body, which comprises a bottom bracing formwork correspondingly attached to the lower position of the wet joint between two adjacent precast concrete members; the bottom limiting rod group extends and is attached to the lower part of the bottom supporting template to form an extension type limiting effect; the top limiting rod group is erected above the two adjacent precast concrete members; and the opposite-pulling screw rod is fixedly arranged between the bottom limiting rod group and the top limiting rod group in an extending and opposite-pulling manner. The technical problems that when a formwork is fixed for wet joint pouring, the overall stability of a formwork pull rod is poor, the follow-up dismantling procedure is tedious, and the construction efficiency is low are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wet joint construction technical field, specifically, relate to a kind of pull rod type formwork framework based on steel concrete bridge body wet joint pouring. BACKGROUND

[0002] Currently, when wet joint construction is carried out on prefabricated concrete members, it is usually necessary to install a wet joint formwork to form a pouring limiting space for concrete. The wet joint formwork pull rod, as a kind of pull-in fixing structure for the wet joint formwork, can effectively prevent the formwork from expanding and shifting during concrete pouring.

[0003] In the prior art, the formwork pull rod is usually maintained by a simple support structure or a temporary fixing member. Specifically, it is generally composed of a pull rod body and two end fixing members. Although it can meet the requirements of formwork fixing to some extent, the overall stability of the formwork pull rod is poor, and the subsequent disassembly process is complicated and inefficient. SUMMARY

[0004] Therefore, the utility model provides a pull rod type formwork framework based on steel concrete bridge body wet joint pouring to solve the technical problems of poor overall stability of the formwork pull rod during formwork fixing for wet joint pouring in the prior art, complicated subsequent disassembly process, and low construction efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A pull rod type formwork framework based on steel concrete bridge body wet joint pouring, comprising:

[0007] A bottom support formwork corresponding to the position below the wet joint between two adjacent prefabricated concrete members;

[0008] A bottom limiting rod group extending below the bottom support formwork to form an extended limiting action;

[0009] A top limiting rod group arranged above the two adjacent prefabricated concrete members;

[0010] A pull-in screw rod extending and fixed between the bottom limiting rod group and the top limiting rod group.

[0011] Based on the above technical scheme, the utility model is further described as follows:

[0012] As a further scheme of the utility model,

[0013] The bottom support formwork is a bamboo plywood body with a thickness not less than 1.5 cm.

[0014] As a further scheme of the utility model,

[0015] The bottom limiting rod group is provided with two groups, and the two groups of bottom limiting rod groups are extended and attached below the bottom support template; the top limiting rod group is provided with at least two groups, and the at least two groups of top limiting rod groups are uniformly spaced and arranged above the adjacent two prefabricated concrete members;

[0016] The at least two groups of top limiting rod groups are vertically arranged between the two groups of bottom limiting rod groups.

[0017] As a further scheme of the utility model,

[0018] Each group of bottom limiting rod groups comprises two bottom limiting rods, the two bottom limiting rods are arranged in parallel by a binding positioning belt, and a screw rod passing space is arranged between the two bottom limiting rods;

[0019] Each group of top limiting rod groups comprises two top limiting rods, the two top limiting rods are arranged in parallel by a binding positioning belt, and a screw rod passing space is arranged between the two top limiting rods;

[0020] The plurality of pull-out screw rods extend through the screw rod passing spaces of the two groups of bottom limiting rod groups and the screw rod passing spaces of the at least two groups of top limiting rod groups to be fixed.

[0021] As a further scheme of the utility model,

[0022] The end portions of the plurality of pull-out screw rods that extend through the two groups of bottom limiting rod groups are screw-fitted with bottom limiting plates, and the end portions of the plurality of pull-out screw rods that extend through the at least two groups of top limiting rod groups are screw-fitted with top limiting plates.

[0023] As a further scheme of the utility model,

[0024] The binding positioning belt is an elastic binding belt body, and the screw rod passing spaces between the two bottom limiting rods and the two top limiting rods respectively have elastic clamping force.

[0025] As a further scheme of the utility model,

[0026] The upper positions of the adjacent two prefabricated concrete members are uniformly and fixedly provided with a plurality of groups of heightening pads, the at least two groups of top limiting rod groups are uniformly and arranged on the plurality of groups of heightening pads of the adjacent two prefabricated concrete members, and the plurality of pull-out screw rods respectively and one-to-one extend through the plurality of groups of heightening pads.

[0027] As a further scheme of the utility model,

[0028] When the bottom surface of the prefabricated concrete component is inclined, the angle-adjusting pad is arranged between the bottom limiting plate and the bottom limiting rod group.

[0029] The upper end surface of the angle-adjusting pad is arranged to be in contact with the bottom limiting rod group, and the lower end surface of the angle-adjusting pad is arranged to be perpendicular to the extension direction of the tensioning screw rod.

[0030] As a further scheme of the utility model,

[0031] The angle-adjusting pad is arranged as a right-angled triangular pad.

[0032] The utility model has the following beneficial effects:

[0033] The device can form multi-point bottom limiting of the bottom limiting rod group through the cooperation of the bottom limiting plate and the tensioning screw rod, and can further form extension limiting of the bottom support template through the bottom limiting rod group, thereby significantly improving the overall stability of the bottom support template, and the tensioning screw rod can be directly and conveniently removed from the top, and the bottom limiting rod group and the bottom support template can be automatically positioned downward under the action of gravity, thereby effectively improving the convenience of the template removal process, and the concrete pouring space can be effectively ensured through the heightening pad, thereby further improving the functional application adaptability and practicality of the overall framework. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, the structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, so as to be understood and read by those skilled in the art. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0035] Fig. 1 The overall top view structural schematic diagram of the pull rod type template framework based on the steel-concrete bridge body wet joint pouring is provided for the embodiments of the utility model.

[0036] Fig. 2 The overall side view assembly structural schematic diagram of the pull rod type template framework based on the steel-concrete bridge body wet joint pouring is provided for the embodiments of the utility model.

[0037] In the drawings, the component list represented by each reference numeral is as follows:

[0038] Bottom support template 1; bottom limiting rod group 2; bottom limiting plate 3; tensioning screw rod 4; top limiting rod group 5; binding positioning belt 6; top limiting plate 7; heightening pad 8;

[0039] a) Precast concrete component; b) Wet joint. Detailed Implementation

[0040] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. 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.

[0041] The terms "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0042] like Figs. 1-2 As shown, this utility model embodiment provides a tie-rod type formwork structure for wet joint casting of steel-concrete bridge bodies, including a bottom support formwork 1, a bottom limiting rod group 2, a bottom limiting plate 3, tie rods 4, a top limiting rod group 5, binding and positioning straps 6, a top limiting plate 7, and a heightening pad 8. The bottom limiting plates 3 and tie rods 4 work together to form a multi-point bottom limiting of the bottom limiting rod group 2, and the bottom limiting rod group 2 can further extend the limiting effect on the bottom support formwork 1, thereby significantly improving the overall stability of the bottom support formwork 1. Simultaneously, the tie rods 4 can be easily removed directly from the top, allowing the bottom limiting rod group 2 and the bottom support formwork 1 to automatically fall downwards under gravity, effectively improving the convenience of the formwork removal process. Furthermore, the heightening pad 8 effectively ensures the concrete pouring space, further enhancing the functional application adaptability and practicality of the overall structure. Specific settings are as follows:

[0043] Please refer to Fig. 1 and Fig. 2The bottom support template 1 is made of bamboo plywood with a thickness of not less than 1.5cm, and is attached to the bottom of the wet joint b between two adjacent precast concrete components a. Two sets of bottom limiting rods 2 are provided, both extending and attached to the bottom of the bottom support template 1 to provide extended limiting for the bottom support template 1. Specifically, each set of bottom limiting rods 2 includes two bottom limiting rods, which are connected by... The binding and positioning strap 6 is set in a parallel limiting manner, and a screw threading gap is left between the two bottom limiting rods; several tie rods 4 are provided, and the tie rods 4 extend through the screw threading gap of the two sets of bottom limiting rod groups 2 respectively, and the ends of the tie rods 4 passing through the two sets of bottom limiting rod groups 2 are screwed and assembled with the bottom limiting plate 3, so as to form a multi-point bottom pulling and limiting effect on the bottom limiting rod group 2 by the tie rods 4 and the bottom limiting plate 3.

[0044] The top limiting rod group 5 is provided in at least two sets, which are evenly spaced above two adjacent precast concrete components a, and are perpendicular to the two sets of bottom limiting rod groups 2. Specifically, each set of top limiting rod groups 5 includes two top limiting rods, which are parallel to each other by the binding positioning strap 6, and a screw threading gap is left between the two top limiting rods. Several tie rods 4 extend through the screw threading gap of the at least two sets of top limiting rod groups 5, and the ends of the tie rods 4 passing through the at least two sets of top limiting rod groups 5 are screwed with top limiting plates 7, so as to form a distributed multi-point stable limiting and pulling action by means of the tie rods 4 and the top and bottom limiting plates.

[0045] As a preferred embodiment, the binding and positioning band 6 is configured as an elastic binding band body to form a screw threading distance with elastic clamping force, thereby effectively improving the relative stability of the pull screw 4 after being subjected to elastic pressure limiting action corresponding to the bottom limit rod group 2 and the top limit rod group 5.

[0046] As a preferred embodiment, please refer to Fig. 2 Several sets of heightening pads 8 are evenly spaced and fixed above two adjacent precast concrete components a. At least two sets of top limiting rod groups 5 are evenly spaced and erected on several sets of heightening pads 8 located on two adjacent precast concrete components a. Several tie rods 4 extend through several sets of heightening pads 8 respectively, so as to effectively increase the erection height of the top limiting rod group 5 through the heightening pads 8, thereby ensuring the concrete pouring space.

[0047] As a preferred embodiment, when the bottom surface of the precast concrete component a is inclined, an angle adjustment pad is provided between several sets of bottom limiting plates 3 and two sets of bottom limiting rod groups 2. The angle adjustment pad can be set as, but is not limited to, a right-angled triangular pad. The upper end face of the angle adjustment pad is aligned with and contacts the two sets of bottom limiting rod groups 2, and the lower end face of the angle adjustment pad is perpendicular to the extension direction of the tie rod 4. This is to make the screwing angle between the bottom limiting plate 3 and the tie rod 4 more stable through the angle adjustment pad, effectively improving the overall functionality and practicality.

[0048] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A tie-rod type formwork structure based on wet joint casting of steel-concrete bridge body, characterized in that, include: The bottom support formwork is attached to the position below the wet joint between two adjacent precast concrete components; The bottom limiting rod assembly extends and is attached to the bottom support template below, forming an extended limiting function; The top limit rod assembly is erected above two adjacent precast concrete components; A tie rod extends and is fixedly disposed between the bottom limiting rod group and the top limiting rod group.

2. The tie-rod formwork structure based on wet joint casting of steel-concrete bridge body according to claim 1, characterized in that, The bottom support template is made of bamboo plywood with a thickness of not less than 1.5cm.

3. The tie-rod formwork structure based on wet joint casting of steel-concrete bridge body according to claim 1, characterized in that, The bottom limiting rod group is provided in two sets, and both sets of the bottom limiting rod group extend and are attached to the bottom support template below; the top limiting rod group is provided in at least two sets, and the at least two sets of the top limiting rod group are evenly spaced and erected above two adjacent precast concrete components. At least two sets of the top limiting rod groups are arranged perpendicularly to the two sets of the bottom limiting rod groups.

4. The tie-rod formwork structure based on wet joint casting of steel-concrete bridge body according to claim 3, characterized in that, Each set of bottom limit rods includes two bottom limit rods, which are parallelly limited by a binding positioning strap, and a screw threading gap is left between the two bottom limit rods. Each set of top limiting rods includes two top limiting rods, which are parallelly limited by a binding positioning strap, and a screw threading gap is left between the two top limiting rods. The tie rods are provided in a plurality of manner, and the plurality of tie rods extend through the screw threading distance of the two sets of bottom limit rod groups and the screw threading distance of at least two sets of top limit rod groups to fix them in a tie.

5. The tie-rod formwork structure based on wet joint casting of steel-concrete bridge body according to claim 4, characterized in that, The ends of several of the tie rods passing through the two sets of bottom limit rods are all screwed together with bottom limit plates, and the ends of several of the tie rods passing through at least two sets of top limit rods are all screwed together with top limit plates.

6. The tie-rod formwork structure based on wet joint casting of steel-concrete bridge body according to claim 4, characterized in that, The binding and positioning strap is configured as an elastic binding strap body, and a screw threading spacing with elastic clamping force is formed between the two bottom limiting rods and between the two top limiting rods.

7. The tie-rod formwork structure based on wet joint casting of steel-concrete bridge body according to claim 4, characterized in that, Several sets of heightening pads are fixedly installed at even intervals above two adjacent precast concrete components. At least two sets of top limiting rods are evenly installed at even intervals on several sets of heightening pads located on two adjacent precast concrete components. Several tie rods extend through several sets of heightening pads respectively.

8. The tie-rod formwork structure based on wet joint casting of steel-concrete bridge body according to claim 5, characterized in that, When the bottom surface of the precast concrete component is inclined, an angle adjustment pad is provided between several sets of bottom limiting plates and two sets of bottom limiting rods. The upper end face of the angle adjustment pad is configured to engage with the two sets of bottom limit rods, and the lower end face of the angle adjustment pad is perpendicular to the extension direction of the pull screw.

9. The tie-rod formwork structure based on wet joint casting of steel-concrete bridge body according to claim 8, characterized in that, The angle adjustment pad is set as a right-angled triangular pad.

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