Corrugated pipe positioning device for cast-in-place box girder of high-speed railway

Abstract

The utility model discloses a corrugated pipe positioning device for a cast-in-place box girder of a high-speed railway. The corrugated pipe positioning device comprises a corrugated pipe positioning structure unit and a base, the two ends of the corrugated pipe positioning structure unit are arranged in the sliding grooves of the two vertical rods in a sliding mode respectively. A plurality of positioning holes are formed in the two sliding grooves, with the same height, of the two vertical rods in each set, the two ends of each transverse rod are inserted into the two positioning holes, with the same height, of the two vertical rods correspondingly, and the two transverse rods are arranged below the two ends of the corrugated pipe positioning structure unit correspondingly. According to the corrugated pipe positioning structure unit, the height of the corrugated pipe positioning structure unit is adjusted by adjusting the cross rods to be inserted into the positioning holes with different heights, and the height of a corrugated pipe is also adjusted; the height of the corrugated pipe is positioned through the base, the width position of the corrugated pipe is positioned through the mounting notches in the corrugated pipe positioning structure units, and finally it is guaranteed that coordinates of the corrugated pipe are accurately positioned, the vertical curve curve of the corrugated pipe is natural, and the size meets the design requirement.

Description

TECHNICAL FIELD

[0001] The utility model relates to cast-in-place box girder construction technical field especially relates to a high -speed railway cast-in-place box girder bellows positioning device. BACKGROUND

[0002] With the rapid development of high-speed railway construction, box girder as one of the main structure forms of high-speed railway bridge, its construction technology is also constantly progressing. Box girder construction requires high precision and high efficiency, and the positioning of bellows is the key link of box girder prestressed tension construction, which has important influence on the bearing capacity and service life of box girder. In box girder construction, bellows is used for the installation of prestressed tendon, and its positioning precision directly affects the tension effect of prestressed tendon and the stress performance of box girder. The traditional bellows positioning method adopts steel bar welding or binding fixation, which has the problems of low positioning precision, low construction efficiency and material waste.

[0003] Therefore, it is necessary to develop a high-speed railway cast-in-place box girder bellows positioning device to solve the above problems. SUMMARY

[0004] The utility model discloses a high -speed railway cast-in-place box girder bellows positioning device is designed to solve the above -mentioned problem.

[0005] The utility model discloses a high -speed railway cast-in-place box girder bellows positioning device, including:

[0006] A high-speed railway cast-in-place box girder bellows positioning device, comprising:

[0007] The bellows positioning structure unit is provided with a plurality of mounting notches corresponding in number and position for placing the bellows above both ends of the bellows positioning structure unit.

[0008] The base comprises a bottom frame, four vertical rods and two horizontal rods. The bottom frame is rectangular. The four vertical rods are vertically installed at the four corners of the bottom frame. A sliding groove is formed on one side of each pair of vertical rods on the wide edge of the bottom frame. The two ends of the bellows positioning structure unit are slidably placed in the sliding grooves of the two pairs of vertical rods. A plurality of positioning holes are arranged in the two sliding grooves of the same height of each pair of vertical rods. The two ends of the horizontal rod are inserted into the two positioning holes of the same height of the two vertical rods. The two horizontal rods are placed below the two ends of the bellows positioning structure unit.

[0009] The utility model has the advantages of:

[0010] The height adjustment of the corrugated pipe positioning structure unit is realized by adjusting the horizontal rod to be inserted into the positioning holes at different heights, and the height of the corrugated pipe is adjusted; the height of the corrugated pipe is positioned by the base, the width position of the corrugated pipe is positioned by the mounting gap on the corrugated pipe positioning structure unit, and finally the coordinate positioning of the corrugated pipe is accurate, the vertical curve of the corrugated pipe is naturally curved, and the size meets the design requirements. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0012] Figure 2 It is a structure schematic diagram of the corrugated pipe positioning structure unit;

[0013] Figure 3 It is a structure schematic diagram of the base;

[0014] Figure 4 It is a corrugated pipe installation positioning schematic diagram of N5 and N9;

[0015] Figure 5 It is a corrugated pipe installation positioning schematic diagram of N2 and N6.

[0016] In the figure: 1, corrugated pipe positioning structure unit; 2, base; 3, mounting plate; 4, longitudinal steel bar; 5, vertical rod; 6, horizontal rod; 7, mounting gap; 8, sliding groove; 9, positioning hole. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0019] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1-3 As shown, a positioning device for corrugated pipes of cast-in-place box girders for high-speed railways includes:

[0025] The corrugated pipe positioning structure unit 1 includes two mounting plates 3 and four longitudinal reinforcing bars 4. The two mounting plates 3 are arranged in parallel, and the four longitudinal reinforcing bars 4 are arranged in parallel, forming a cuboid shape. The two ends of the four longitudinal reinforcing bars 4 are respectively connected to the inner sides of the two mounting plates 3. The mounting notches 7 are provided at the upper edge of the mounting plates 3. Each mounting plate 3 is provided with two mounting notches 7, and the mounting notches 7 are arc-shaped.

[0026] Base 2; Base 2 includes a bottom frame, four vertical rods, and two horizontal rods 6. The bottom frame is rectangular. The four vertical rods are vertically installed at the four corners of the bottom frame. A groove 8 is provided on one side of each pair of vertical rods on the wide side of each bottom frame. The two ends of the corrugated pipe positioning structure unit 1 are slidably placed in the grooves 8 of the two sets of vertical rods. Four positioning holes 9 are provided in the two grooves 8 at the same height for each pair of vertical rods. The two ends of the horizontal rods 6 are inserted into the two positioning holes 9 at the same height for the two vertical rods. The two horizontal rods 6 are positioned below the two ends of the corrugated pipe positioning structure unit 1. The horizontal rods are polygonal prisms, and correspondingly, the positioning holes are polygonal; preferably, the horizontal rods 6 are cuboids, and correspondingly, the positioning holes 9 are rectangular.

[0027] The two mounting plates 3 are made of 5mm thick steel plates, with fixed-spaced mounting notches 7 cut on them for positioning the corrugated pipe. The mounting plates 3 are set according to the length of the bent section of the corrugated pipe and connected by HRB400Φ20 longitudinal steel bars 4 to form a fixed-spaced corrugated pipe positioning structure unit 1.

[0028] The upright 5 is made of 50# square steel. The upright 5 is provided with four holes for installing 25# square steel crossbars 6 to position and support the corrugated pipe positioning structure unit 1. The height of the corrugated pipe positioning structure unit 1 can be adjusted by adjusting the crossbars 6 inserted into the positioning holes 9 at different positions.

[0029] like Figure 4 and 5 As shown, the operating steps are as follows: 1. First, measure the vertical bend positions of the two corrugated pipes N5 and N9 on the bottom formwork of the cast-in-place beam, and set the base 2 to the corresponding position; 2. Set the horizontal bar 6 to the highest hole position; 3. Insert the corrugated pipe positioning structure unit 1 along the groove of the vertical bar 5; 4. Use the installed corrugated pipe positioning device to assist in the installation of corrugated pipes N5 and N9, and weld the corrugated pipe positioning steel bars at the corresponding positions to complete the installation of corrugated pipes N5 and N9; 5. Adjust the horizontal bar 6 to the corresponding height hole position to complete the height setting of the base 2, and repeat steps 2 to 5 to complete the positioning and installation of corrugated pipes N4 and N8, N3 and N7, and N2 and N6 in sequence.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A corrugated pipe positioning device for high-speed railway cast-in-place box girder, characterized in that, The utility model relates to a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe.

2. The corrugated pipe positioning device for a cast-in-place box girder of a high-speed railway according to claim 1, characterized in that, The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe.

3. The corrugated pipe positioning device for a cast-in-place box girder of a high-speed railway according to claim 2, characterized in that, The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe.

4. The corrugated pipe positioning device for a cast-in-place box girder of a high-speed railway according to claim 1, characterized in that, The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe.

5. The corrugated pipe positioning device for a cast-in-place box girder of a high-speed railway according to claim 4, characterized in that, The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe.

6. The corrugated pipe positioning device for a cast-in-place box girder of a high-speed railway according to claim 1, characterized in that, The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated pipe positioning structure unit, a base and a corrugated pipe. The utility model discloses a corrugated

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