Continuous rigid frame midspan closure section framework structure

Abstract

The utility model discloses a continuous rigid frame midspan closure section framework structure which comprises anchoring assemblies which are arranged in pairs, the deviating ends of the two anchoring assemblies in the same pair are embedded in two cast-in-place beams arranged at intervals respectively, and the opposite ends of the two anchoring assemblies in the same pair extend to form cast beams; the connecting assembly is arranged between the two anchoring assemblies in the same pair; the butt joint assembly is mounted on the anchoring assembly or the connecting assembly; the fixing piece is used for fixedly connecting the end part of the connecting assembly with the part, extending out of the pouring beam, of the corresponding anchoring assembly. During installation, gravity energy of the connecting assembly can be transmitted to the corresponding anchoring assembly through the butt-joint assembly, so that supporting of the connecting assembly is achieved, a supporting frame does not need to be additionally arranged to support the connecting assembly, construction is simplified, and construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a continuous rigid frame mid-span closing section skeleton structure. Background Art

[0002] With the rapid improvement of economic level, economic development has brought about frequent personnel flow and material transportation, and the construction of large-span concrete bridges has become very common. When constructing the closing section, a skeleton structure is required to lock the cast-in-place segments on both sides and withstand the force from both sides to ensure that the spacing of the closing section does not shrink or expand, so as to facilitate the pouring of the closing section concrete.

[0003] At present, the skeleton structure is mainly divided into two types: internal and external rigid skeletons. The disadvantage of the external skeleton is that the skeleton is easily corroded and damaged during the bridge construction stage, which has an adverse effect on the structural performance of the bridge after completion, and also affects the visual effect of the bridge. The construction is cumbersome and costly. The internal skeleton is not easily corroded and does not affect the appearance of the bridge, but during installation, an auxiliary support structure is required to support and fix the intermediate connection components in order to complete the subsequent docking and connection operations, which makes the construction more troublesome and affects the construction efficiency. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a continuous rigid frame mid-span closure section skeleton structure, which can be installed without the need for additional support frames to support the connection components, thereby simplifying the construction and improving the construction efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A skeleton structure of a continuous rigid frame mid-span closure section comprises: anchoring assemblies arranged in pairs, wherein the divergent ends of the two anchoring assemblies in the same pair are respectively pre-buried in two cast-in-place beams arranged at intervals, and the facing ends extend to form cast-in-place beams; a connecting assembly arranged between the two anchoring assemblies in the same pair; a docking assembly installed on the anchoring assembly or the connecting assembly and used to transmit the gravity energy of the connecting assembly to the corresponding anchoring assembly; and a fixing piece used to connect and fix the end of the connecting assembly to the part of the corresponding anchoring assembly extending from the cast-in-place beam.

[0007] Furthermore, the anchoring assembly includes two first channel steels with openings facing each other, and the two first channel steels are connected and fixed by a lap plate.

[0008] Furthermore, anchor bars are fixedly connected to the lap joint plates, and the anchor bars are used to be embedded in the cast-in-place beams.

[0009] Furthermore, the connection assembly includes two second channel steels with openings facing each other, and the second channel steels are arranged at intervals and connected and fixed by arranged series plates.

[0010] Furthermore, a first tubular space is formed between the two first channel steels, a second tubular space is formed between the two second channel steels, the docking assembly includes a square tube slidably installed in the second tubular space, and the docking assembly has a docking state and an avoidance state; when the docking assembly is in the docking state, the square tube portion extends out of the second tubular space and is embedded in the first tubular space, so that the gravity of the end of the connecting assembly can be transmitted to the corresponding anchoring assembly; when the docking assembly is in the avoidance state, the docking assembly shrinks into the second tubular space.

[0011] Furthermore, the square tube is provided with a connection block extending from a gap between the two second channel steels, an eccentric shaft is hinged on the connection block, and the eccentric shaft can rotate around the hinge to cooperate with the square tube to clamp or release the second channel steel.

[0012] Furthermore, a limit strip is fixedly mounted on the outer wall of the second channel steel. When the docking assembly is in a docking state, the connection block abuts against the limit strip, and the limit strip is used to limit the outward movement of the square tube.

[0013] Furthermore, the fixing member is a connecting plate, and the connecting plate is respectively connected and fixed to the first channel steel and the second channel steel; and one end of the connecting plate is positioned and abutted against the limiting strip.

[0014] Furthermore, the eccentric shaft is connected with a handle portion, and the handle portion has a grasping groove.

[0015] Furthermore, when the docking assembly is in the docking state, the middle portion of the handle portion abuts against the outer surface of the second channel steel, and the outer end is tilted away from the second channel steel.

[0016] The utility model has the following beneficial effects:

[0017] The anchoring components are partially embedded in the cast-in-place beams, and partially connected and fixed to the connection components through fixings, so that the cast-in-place beams and the steel structure in the concrete structure of the closing section are tightly connected together, thereby achieving structural stability at the closing connection of the bridge; and during installation, the docking components can be used to transfer the gravity of the connection components to the corresponding anchoring components, so as to support the connection components, without the need to set up additional support frames to support the connection components, simplifying the construction and improving the construction efficiency.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a structural schematic diagram of the installation state of the embodiment of the utility model;

[0021] Figure 2 It is an axonometric diagram of an embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the exploded state structure of the connection between the anchoring component and the connecting component;

[0023] Figure 4 It is a schematic diagram of the exploded state structure of the connection component and the docking component;

[0024] Figure 5 It is a schematic diagram of the decomposed state structure of the avoidance state;

[0025] Figure 6 It is a partial structural cross-sectional view of the docking state;

[0026] Figure 7 This is a schematic diagram of the state where the eccentric shaft loosens the second channel steel.

[0027] Legend:

[0028] Anchor assembly 100, cast-in-place beam 101, first channel steel 110, first tubular space 111, lap plate 120, anchor bar 130;

[0029] Connecting assembly 200, second channel steel 210, second tubular space 211, limiting strip 212, series connection plate 220;

[0030] Docking assembly 300, square tube 310, connecting block 311, eccentric shaft 320, handle 321, grip groove 322;

[0031] Fixing member 400. DETAILED DESCRIPTION

[0032] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] Please refer to Figure 1 and Figure 2 A preferred embodiment of the present invention provides a continuous rigid frame mid-span closure segment skeleton structure, comprising an anchoring assembly 100, a connecting assembly 200, a docking assembly 300 and a fixing member 400.

[0037] The anchoring components 100 are arranged in pairs, and the divergent ends of the two anchoring components 100 of the same pair are respectively pre-buried in two cast-in-place beams 101 arranged at intervals, and the facing ends of the two anchoring components 100 of the same pair extend out of the cast-in-place beams 101; the connecting component 200 is arranged between the two anchoring components 100 of the same pair; the docking component 300 is installed on the anchoring component 100 or the connecting component 200, and is used to transfer the gravity of the connecting component 200 to the corresponding anchoring component 100, so as to realize the support of the connecting component 200 and facilitate the subsequent installation and fixation ; In this embodiment, the docking assembly 300 is installed on the connecting assembly 200; the fixing member 400 is used to connect and fix the end of the connecting assembly 200 to the part of the corresponding anchor assembly 100 extending from the cast-in-place beam 101, that is, both ends of the docking assembly 300 are connected and fixed to the corresponding anchor assembly 100 through the fixing member 400, thereby connecting the steel structures in the two spaced-apart cast-in-place beams 101 in series, and then pouring concrete between the two cast-in-place beams 101 to connect the two cast-in-place beams 101, thereby realizing the closure of the bridge construction.

[0038] The utility model provides a skeleton structure of a continuous rigid frame mid-span closing section, in which an anchoring component 100 is partially embedded in a cast-in-place beam 101, and partially connected and fixed to a connection component 200 through a fixing piece 400, thereby realizing that the cast-in-place beam 101 and the steel structure in the concrete structure of the closing section are tightly connected together, and the structural stability of the closing connection of the bridge is realized; and during installation, a docking component 300 can be utilized to transfer the gravity of the connection component 200 to the corresponding anchoring component 100, thereby realizing the support of the connection component 200, without the need to additionally set up a support frame to support the connection component 200, thereby simplifying the construction and improving the construction efficiency.

[0039] Reference Figure 3 In some embodiments of the utility model, the anchor assembly 100 includes two first channel steels 110 with openings facing each other, and the two first channel steels 110 are connected and fixed by a lap plate 120. The lap plate 120 is used to connect and fix the two first channel steels 110. Specifically, the lap plate 120 spans the gap between the first channel steels 110, and the lap plate 120 is connected and fixed to the first channel steel 110 by welding. The lap plates 120 are spaced apart up and down so that the upper and lower sides of the two first channel steels 110 are connected and fixed, thereby improving the connection stability and structural strength.

[0040] Reference Figure 3 In some embodiments of the utility model, an anchor bar 130 is fixedly connected to the lap plate 120. The anchor bar 130 is used to be embedded in the cast-in-place beam 101. The lap plate 120 provides a better position for the anchor bar 130 to facilitate its installation and fixation. Specifically, a plurality of anchor bars 130 are provided to improve the connection stability with the cast-in-place beam.

[0041] Reference Figure 2 and Figure 4 In some embodiments of the utility model, the connection assembly 200 includes two second channel steels 210 with openings facing each other. The second channel steels 210 are arranged at intervals and connected and fixed by arranged series plates 220. The second channel steels 210 are connected and fixed by the series plates 220 to form a whole. The series plates 220 are provided with two groups up and down and are arranged along the length direction of the second channel steels 210, thereby realizing multi-position connection and improving connection stability. The series plates 220 and the second channel steels 210 are specifically connected and fixed by welding.

[0042] Reference Figure 3 and Figure 4In a further embodiment of the present invention, a first tubular space 111 is formed between the two first channel steels 110, and a second tubular space 211 is formed between the two second channel steels 210. The docking assembly 300 includes a square tube 310 slidably mounted in the second tubular space 211, and the docking assembly 300 has a docking state and an avoidance state; when the docking assembly 300 is in the docking state, the square tube 310 partially extends out of the second tubular space 211 and is embedded in the first tubular space 111, so that the gravity at the end of the connecting assembly 200 can be transmitted to the corresponding anchoring assembly 100, so as to achieve the support of the connecting assembly 200 and facilitate the subsequent installation of the fixing member 400, and the square tube 310 can also strengthen the structural strength of the connection between the connecting assembly 200 and the anchoring assembly 100, which not only plays the effect of counter-connection and temporary support of the connecting assembly 200, but also can strengthen the structure of the connection between the two, and has multiple functions; when the docking assembly 300 is in the avoidance state, the docking assembly 300 shrinks into the second tubular space 211, so as to Figure 5 As shown, when the docking assembly 300 is in the avoidance state, the connection assembly 200 can be placed between the two anchoring assemblies 100, and the docking assembly 300 is retracted into the second tubular space 211, so as not to interfere with the connection assembly 200 being placed between the two anchoring assemblies 100. Specifically, the cross-sectional profiles of the first tubular space 111 and the second tubular space 211 are the same, and the outer cross-sectional profile of the square tube 310 is the same as the cross-sectional profile of the first tubular space 111 or the outer cross-sectional profile of the square tube 310 is slightly smaller than the cross-sectional profile of the first tubular space 111, so that the square tube 310 can move in the second tubular space 211 and can be inserted into or withdrawn from the first tubular space 111. For example, the outer cross-sectional profile area of ​​the square tube 310 is 0.98 of the cross-sectional profile area of ​​the first tubular space 111, and the cross-sectional profile of the first tubular space 111 is reduced by 0.98 as a whole, which is the outer cross-sectional profile of the square tube 310, so that the square tube 310 can move smoothly.

[0043] Reference Figure 4 , Figure 6 and Figure 7 In a further embodiment of the utility model, the square tube 310 is provided with a connecting block 311 extending from the gap between the two second channel steels 210, and an eccentric shaft 320 is hinged on the connecting block 311. The eccentric shaft 320 can rotate around the hinge to cooperate with the square tube 310 to clamp or release the second channel steel 210. Specifically, the hinge center of the eccentric shaft 320 deviates from its own center, so that when the eccentric shaft 320 rotates, there will be ups and downs, and the peripheral wall of the eccentric shaft 320 contacts the flange of the second channel steel 210, such as Figure 6As shown, at this time, the thicker position of the eccentric shaft 320 contacts the flange of the second channel steel 210, thereby reducing the distance between the eccentric shaft 320 and the upper surface of the square tube 310, thereby clamping the flange of the second channel steel 210 to fix the position of the square tube 310. When it is necessary to loosen, it is only necessary to rotate the eccentric shaft 320 to increase the distance between the eccentric shaft 320 and the upper surface of the square tube 310, thereby loosening the second channel steel 210. At this time, the square tube 310 can be pushed to move, and the eccentric shaft 320 can be used to fix the position of the square tube 310 in the docking state and the avoidance state, so that the square tube 310 in the avoidance state will not move at will and interfere with the connection assembly 200 being placed between the two anchoring assemblies 100; the square tube 310 in the docking state will not retreat and be withdrawn from the first tubular space 111, causing the end of the docking assembly 300 to be suspended in the air, causing a risk of falling.

[0044] Reference Figure 4 , Figure 6 and Figure 7 In a further embodiment of the utility model, a limit strip 212 is fixedly installed on the outer wall of the second channel steel 210. When the docking assembly 300 is in the docking state, the connecting block 311 abuts against the limit strip 212. The limit strip 212 is used to limit the outward movement of the square tube 310, thereby preventing the square tube 310 from moving outward and detaching from the docking assembly 300, causing structural failure, so that the square tube 310 cannot transfer the gravity of the connecting assembly 200 to the anchoring assembly 100, thereby achieving temporary support for the connecting assembly 200.

[0045] Reference Figure 2 , Figure 3 In a further embodiment of the utility model, the fixing member 400 is a connecting plate, which is respectively connected and fixed to the first channel steel 110 and the second channel steel 210; and one end of the connecting plate is positioned and abutted against the limiting strip 212, and the connecting plate can be connected and fixed to the first channel steel 110 and the second channel steel 210 by welding, and the connecting plate is connected to both the two first channel steels 110 and the two second channel steels 210, so that the connection between the connecting assembly 200 and the end of the anchoring assembly 100 is more stable and firm; specifically, the connecting plate can be connected and fixed to the first channel steel 110 and the second channel steel 210 by welding, and the limiting strip 212 has a certain positioning effect on the connecting plate, which is convenient for subsequent welding and fixing.

[0046] Reference Figure 4 In a further embodiment of the present invention, the eccentric shaft 320 is connected to a handle portion 321 , and the handle portion 321 has a grasping groove 322 , so that it is convenient to hold the handle portion 321 by hand to rotate the eccentric shaft 320 .

[0047] Reference Figure 6In a further embodiment of the utility model, when the docking assembly 300 is in the docking state, the middle part of the handle portion 321 is against the outer surface of the second channel steel 210, and the outer end of the handle portion 321 is tilted away from the second channel steel 210, that is, one end of the handle portion 321 away from the eccentric shaft 320 is tilted away from the second channel steel 210, thereby facilitating the gripping operation of lifting the handle portion 321.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A continuous rigid frame mid-span closure section skeleton structure, characterized in that: include: The anchoring components (100) are arranged in pairs, and the two anchoring components (100) of the same pair have their divergent ends respectively embedded in two cast-in-place beams (101) arranged at intervals, and their facing ends extend out of the cast-in-place beams (101); A connecting assembly (200) is arranged between two anchoring assemblies (100) in the same pair; A docking assembly (300) is installed on the anchor assembly (100) or the connection assembly (200) and is used to transfer the gravity energy of the connection assembly (200) to the corresponding anchor assembly (100); The fixing member (400) is used to connect and fix the end of the connection assembly (200) to the portion of the corresponding anchor assembly (100) extending out of the cast-in-place beam (101).

2. The continuous rigid frame mid-span closure section skeleton structure according to claim 1 is characterized in that: The anchor assembly (100) comprises two first channel steels (110) with openings facing each other, and the two first channel steels (110) are connected and fixed via a lap plate (120).

3. The continuous rigid frame mid-span closure section skeleton structure according to claim 2 is characterized in that: Anchor bars (130) are fixedly connected to the lap plate (120), and the anchor bars (130) are used to be pre-buried in the cast-in-place beam (101).

4. The continuous rigid frame mid-span closure section skeleton structure according to claim 2 is characterized in that: The connection assembly (200) comprises two second channel steels (210) with openings facing each other, and the second channel steels (210) are arranged at intervals and connected and fixed by arranged series plates (220).

5. The continuous rigid frame mid-span closure section skeleton structure according to claim 4 is characterized in that: A first tubular space (111) is formed between the two first channel steels (110), a second tubular space (211) is formed between the two second channel steels (210), the docking assembly (300) comprises a square tube (310) slidably mounted in the second tubular space (211), and the docking assembly (300) has a docking state and an avoidance state; when the docking assembly (300) is in the docking state, the square tube (310) partially extends out of the second tubular space (211) and is embedded in the first tubular space (111), so that the gravity of the end of the connecting assembly (200) can be transmitted to the corresponding anchoring assembly (100); when the docking assembly (300) is in the avoidance state, the docking assembly (300) shrinks into the second tubular space (211).

6. The continuous rigid frame mid-span closure section skeleton structure according to claim 5 is characterized in that: The square tube (310) is provided with a connecting block (311) extending from a gap between the two second channel steels (210); an eccentric shaft (320) is hinged on the connecting block (311); the eccentric shaft (320) can rotate around the hinge to cooperate with the square tube (310) to clamp or loosen the second channel steel (210).

7. The continuous rigid frame mid-span closure section skeleton structure according to claim 6 is characterized in that: A limit strip (212) is fixedly mounted on the outer wall of the second channel steel (210); when the docking assembly (300) is in a docking state, the connection block (311) abuts against the limit strip (212); the limit strip (212) is used to limit the outward movement of the square tube (310).

8. The continuous rigid frame mid-span closure section skeleton structure according to claim 7 is characterized in that: The fixing member (400) is a connecting plate, which is respectively connected and fixed to the first channel steel (110) and the second channel steel (210); and one end of the connecting plate is positioned and abutted against a limiting strip (212).

9. The continuous rigid frame mid-span closure section skeleton structure according to claim 6 is characterized in that: The eccentric shaft (320) is connected to a handle portion (321), and the handle portion (321) has a grip groove (322).

10. The continuous rigid frame mid-span closure section skeleton structure according to claim 9 is characterized in that: When the docking assembly (300) is in a docking state, the middle portion of the handle portion (321) abuts against the outer surface of the second channel steel (210), and the outer end is tilted away from the second channel steel (210).

Images