Pier column reinforcing steel bar pre-embedding adjustable clamp

Abstract

The utility model discloses a pier column steel bar embedding adjustable clamp which comprises a supporting connecting piece, supporting channel steel, a positioning clamp and an adjusting connecting piece. According to the utility model, the pre-burying problem of pier column steel bars with different contours can be solved; the positioning fixture designs and assembles the straight line edge section and the arc section in blocks, so that the mutual influence of the steel bar and the positioning fixture during dismounting is avoided; the positioning fixture is used for punching according to the arrangement of pier bottom steel bars and can be adjusted according to actual conditions during mounting, so that the utilization rate of the positioning fixture is increased; through the connection of the supporting connecting piece and the adjusting connecting piece and the matching of the third strip-shaped hole and the first strip-shaped hole, the transverse and longitudinal adjustment of the clamp is realized, and the precision of the pier column embedded steel bar is ensured; in addition, the whole fixture is arranged at the top of the bearing platform template, so that the mounting elevation of the whole fixture is higher than that of the concrete surface, and pollution of the fixture to the concrete surface is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to an adjustable fixture for pre-burying pier column steel bars. Background Technique

[0002] According to the relevant specifications of bridges, the pre-burial of pier column steel bars needs to accurately ensure the spacing and position, effectively prevent the deviation of the main steel bars, facilitate the control of the spacing of the main steel bars and the thickness of the protective layer, and ensure the service life of the bridge.

[0003] At present, in the pre-burial of pier column steel bars, most of them use fixed fixtures. This method can only meet the fixed pier column dimensions, and corresponding fixtures need to be made for pier columns with different cross-sections, which is rather troublesome in operation. The manufacturing cost of the pier column pre-burial fixtures is high, and the fixed-size fixtures cannot meet the requirements of pre-burying steel bars for variable cross-section pier columns.

[0004] Therefore, it is necessary to develop an adjustable fixture for pre-burying pier column steel bars to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to design an adjustable fixture for pre-burying pier column steel bars to solve the above problems.

[0006] The utility model realizes the above purpose through the following technical solutions:

[0007] An adjustable fixture for pre-burying pier column steel bars, comprising:

[0008] At least two groups of support connecting pieces; each group of support connecting pieces includes two support connecting pieces installed at the top of the opposite sides of the bearing platform formwork, and at least one first strip-shaped hole is horizontally arranged on the support connecting piece;

[0009] At least two support channel steels; at least two support channel steels are parallel to each other; the support channel steels are arranged above the bearing platform formwork and the positioning fixture;

[0010] A positioning fixture; the positioning fixture is formed in a ring shape, a steel bar clamping groove is arranged on the inner side wall of the positioning fixture, and a plurality of adjusting holes are vertically arranged on the top of the positioning fixture;

[0011] At least two groups of adjusting connecting pieces; each group of adjusting connecting pieces includes four adjusting connecting pieces fixedly installed at the bottom of a support channel steel; at least one third strip-shaped hole is horizontally arranged on the adjusting connecting piece. For the adjusting connecting piece placed above the support connecting piece, the third strip-shaped hole is perpendicular to the first strip-shaped hole of the support connecting piece, and the vertical projections intersect, and the positioning connecting pin is vertically inserted into the third strip-shaped hole and the first strip-shaped hole; for the adjusting connecting piece placed above the positioning fixture, a plurality of positioning connecting pins are vertically inserted into the third strip-shaped hole and the adjusting holes.

[0012] Specifically, the support connecting piece includes an upper mounting plate, a connecting vertical plate, a lower mounting plate, a first strip-shaped hole, and a second strip-shaped hole. The upper mounting plate and the lower mounting plate are arranged parallel to each other. The upper and lower ends of the connecting vertical plate are respectively connected to one end of the upper mounting plate and one end of the lower mounting plate. The first strip-shaped hole is opened on the upper mounting plate, and the second strip-shaped hole is opened on the lower mounting plate. The first strip-shaped hole and the second strip-shaped hole are perpendicular. There are bolt holes vertically arranged at the top of the bearing platform formwork. The bolt passes downward through the second strip-shaped hole and then is screwed into the bolt hole for installation.

[0013] Furthermore, the upper mounting plate and the lower mounting plate are also connected by two connecting side plates.

[0014] Preferably, the vertical projections of the first strip-shaped hole and the second strip-shaped hole do not intersect.

[0015] Furthermore, the positioning fixture includes four straight edge segments and arc segments located at the four corners. The straight edge segments and the arc segments are connected by positioning connecting pins.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The present utility model can solve the problem of pre-burying steel bars of pier columns with different profiles; the connection between the positioning fixture and the adjusting connecting piece, the connection between the support connecting piece and the adjusting connecting piece, and the combination of the positioning fixtures all adopt positioning connecting pins, which not only ensure tight and reliable connection, but also make the installation and disassembly more convenient and fast; the positioning fixture is designed and assembled by dividing the straight edge segments and the arc segments into blocks, avoiding the mutual influence between the steel bars and the positioning fixture during demolition; the positioning fixture is punched according to the arrangement of the bottom steel bars of the pier, and can be adjusted according to the actual situation during installation, improving the utilization rate of the positioning fixture; through the connection between the support connecting piece and the adjusting connecting piece and the cooperation of the third strip-shaped hole and the first strip-shaped hole, the horizontal and vertical adjustment of the fixture is realized, ensuring the accuracy of the pre-buried steel bars of the pier column; in addition, since the entire fixture is placed on the top of the bearing platform formwork, the installation elevation of the entire fixture is higher than the concrete surface, avoiding the pollution of the fixture to the concrete surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view of the present application;

[0019] Figure 2 is the top view of the present application;

[0020] Figure 3 is the structural schematic diagram of the positioning fixture in the present application;

[0021] Figure 4 is the bottom view of the support connecting piece in the present application;

[0022] Figure 5 is the cross-sectional view (main view direction) of the support connecting piece in the present application;

[0023] Figure 6 This is a schematic structural diagram of the joint connector in this application;

[0024] Figure 7 This is a schematic structural diagram of the positioning connecting pin in this application.

[0025] In the figure: 1. Positioning fixture; 11. Adjusting hole; 2. Cap template; 3. Support connecting piece; 31. Upper mounting plate; 32. First strip-shaped hole; 33. Connecting vertical plate; 34. Lower mounting plate; 35. Second strip-shaped hole; 4. Adjusting connecting piece; 41. Third strip-shaped hole; 5. Support channel steel; 6. Positioning connecting pin. Specific embodiments

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of the present utility model.

[0028] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0031] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "arrangement" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] The following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings.

[0033] As Figure 1-7 shown, an adjustable fixture for pre-burying pier column steel bars includes:

[0034] Two groups of support connecting members 3; each group of support connecting members 3 includes two support connecting members 3 installed at the top of the opposite sides of the pile cap formwork 2. Two first strip holes 32 are horizontally arranged on the support connecting member 3. The two first strip holes 32 are spaced apart and are parallel to each other.

[0035] Two support channel steels 5; the two support channel steels 5 are parallel to each other; the support channel steels 5 are arranged above the pile cap formwork 2 and the positioning fixture 1.

[0036] A positioning fixture 1; the positioning fixture 1 is formed in a ring shape. A steel bar slot is provided on the inner side wall of the positioning fixture 1. Multiple adjustment holes 11 are vertically arranged on the top of the positioning fixture 1; the multiple adjustment holes 11 are distributed in a plum blossom shape on the top of the positioning fixture 1.

[0037] Two groups of adjustment connecting members 4; each group of adjustment connecting members 4 includes four adjustment connecting members 4 welded and installed at the bottom of one support channel steel 5. At least one third strip hole 41 is horizontally arranged on the adjustment connecting member 4. Two third strip holes 41 are horizontally arranged on the adjustment connecting member 4. The two third strip holes 41 are spaced apart and are on the same straight line. For the adjustment connecting member 4 placed above the support connecting member 3, its third strip hole 41 is perpendicular to the first strip hole 32 of the support connecting member 3 and their vertical projections intersect. The positioning connecting pin 6 is vertically inserted into the third strip hole 41 and the first strip hole 32. For the adjustment connecting member 4 placed above the positioning fixture 1, multiple positioning connecting pins 6 are vertically inserted into the third strip hole 41 and the adjustment hole 11.

[0038] The support connecting member 3 includes an upper mounting plate 31, a connecting vertical plate 33, two connecting side plates, a lower mounting plate 34, a first elongated hole 32, and a second elongated hole 35. The upper mounting plate 31 and the lower mounting plate 34 are arranged parallel to each other. The upper and lower ends of the connecting vertical plate 33 are respectively connected to one end of the upper mounting plate 31 and one end of the lower mounting plate 34. The upper mounting plate 31 and the lower mounting plate 34 are connected by two connecting side plates. The first elongated hole 32 is formed in the upper mounting plate 31, and the second elongated hole 35 is formed in the lower mounting plate 34. The first elongated hole 32 and the second elongated hole 35 are perpendicular. A bolt hole is vertically provided at the top of the bearing platform formwork 2. The bolt passes downward through the second elongated hole 35 and then is screwed into the bolt hole. The vertical projections of the first elongated hole 32 and the second elongated hole 35 do not intersect.

[0039] The positioning fixture 1 includes four straight edge segments and arc segments at four corners. The straight edge segments and the arc segments are connected by positioning connecting pins 6. The four straight edge segments specifically include two long side straight edge segments and two short side straight edge segments. Two adjusting connecting members 4 in each set of adjusting connecting members 4 are connected to the two long side straight edge segments.

[0040] The positioning connecting pins 6 in this application are all selected as tapered positioning pins.

[0041] In some embodiments, a plum blossom-shaped adjusting hole 11 is arranged above the positioning fixture 1 and can be adjusted according to the pier bottom cross-sectional size. Finally, the positioning connecting pin 6 is used for connection. After the installation of the entire system is completed, the planar position of the positioning fixture 1 can be adjusted by the positions of the positioning connecting pin 6 in the third elongated hole 41 and the first elongated hole 32.

[0042] By using this device, the problem that steel bar fixtures for pier columns with different profiles need to be fabricated is solved. The positioning fixture 1 adopts a segmented design and is connected by positioning connecting pins 6 to achieve the purpose of adjusting the embedded cross-sectional size. The positioning connecting pin 6 adopts a tapered design, realizing convenient and quick installation and disassembly. The first elongated hole 32, the second elongated hole 35, and the third elongated hole 41 are all formed as elongated holes, realizing multi-directional adjustment and movement of the fixture, avoiding the problem that the fixture needs to be reinstalled and adjusted due to inconsistent relative positions, improving the embedded accuracy, and effectively ensuring the embedding of pier column steel bars.

[0043] The positioning fixture 1, the support connecting member 3, the adjusting connecting member 4, the support channel steel 5, and the positioning connecting pin 6 are all steel products with high compressive strength, no deformation during the construction process, and can be installed and disassembled repeatedly for many times. They can be adjusted horizontally and vertically to ensure the accuracy of steel bar embedding.

[0044] When this application is installed, first install the support connecting piece 3 on the bearing platform formwork 2, install the adjusting connecting piece 4 under the support channel steel 5. Through the four adjusting connecting pieces 4, the support channel steel 5 is connected to the positioning fixture 1 and the support connecting piece 3. Each part of the positioning fixture 1 is connected by a positioning connecting pin 6 to connect the entire fixture into a whole. Plum blossom-shaped adjusting holes 11 are arranged on the positioning fixture 1, and the connection adjustment between adjacent straight-edge segments and arc segments can be carried out according to the pier bottom cross-sectional dimensions. The positioning fixture 1 is segmented and set in a zigzag shape according to the steel bar spacing for steel bar positioning. After the overall connection is formed, the plane position of the positioning fixture 1 can be adjusted by adjusting the position of the positioning connecting pin 6 in the third strip hole 41 and the first strip hole 32.

[0045] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable fixture for pre-embedded steel bars of pier columns, characterized in that: include: at least two sets of support connectors; Each group of supporting connecting members includes two supporting connecting members installed on the top of one side opposite to the base template, and at least one first strip hole is horizontally arranged on the supporting connecting members; At least two supporting channel steels; at least two supporting channel steels are parallel to each other; the supporting channel steels are arranged above the cap template and the positioning fixture; Positioning fixture; the positioning fixture is formed into a ring shape, a steel bar slot is provided on the inner side wall of the positioning fixture, and a plurality of adjustment holes are vertically provided on the top of the positioning fixture; At least two groups of adjusting connectors; each group of adjusting connectors includes four adjusting connectors fixedly installed on the bottom of a supporting channel steel; at least one third strip hole is horizontally arranged on the adjusting connector, and the third strip hole of the adjusting connector placed above the supporting connector is perpendicular to the first strip hole of the supporting connector, and the vertical projections intersect, and the positioning connecting pin is vertically inserted into the third strip hole and the first strip hole; the adjusting connector placed above the positioning fixture has multiple positioning connecting pins vertically inserted into the third strip hole and the adjusting hole setting.

2. The adjustable pre-embedded fixture for pier column reinforcement according to claim 1, characterized in that: The supporting connecting member includes an upper mounting plate, a connecting vertical plate, a lower mounting plate, a first strip hole, and a second strip hole. The upper mounting plate and the lower mounting plate are arranged parallel to each other. The upper and lower ends of the connecting vertical plate are respectively connected to one end of the upper mounting plate and one end of the lower mounting plate. The first strip hole is opened on the upper mounting plate, and the second strip hole is opened on the lower mounting plate. The first strip hole and the second strip hole are perpendicular. A bolt hole is vertically arranged on the top of the base template. The bolt passes downward through the second strip hole and is screwed into the bolt hole.

3. The adjustable pre-embedded fixture for pier column reinforcement according to claim 2, characterized in that: The upper mounting plate and the lower mounting plate are also connected via two connecting side plates.

4. The adjustable pre-embedded fixture for pier column reinforcement according to claim 2, characterized in that: The vertical projections of the first strip hole and the second strip hole do not intersect.

5. The adjustable pre-embedded fixture for pier column reinforcement according to claim 2, characterized in that: The positioning fixture comprises four straight edge segments and arc segments located at four corners, and the straight edge segments and the arc segments are connected by positioning connecting pins.

Images