Positioning support for staged assembly of suspension bridge anchoring system

Abstract

The utility model relates to the technical field of bridge engineering construction, and particularly discloses a positioning support for staged assembly of a suspension bridge anchoring system, which comprises a rear support, a middle support and a rear connecting rod. The rear support and the middle support are fixedly installed on the fourth layer of anchorage concrete and connected into a whole through the rear connecting rod. The top end of the front bracket is connected with the top end of the middle bracket through a front connecting rod; a short supporting column; short supporting columns are distributed on the inclined faces of the same sides of the rear support, the middle support and the front support in an array mode, and the short supporting columns are sequentially increased along concrete pouring of each layer of anchorage. A double-arm beam; a plurality of double-arm beams are transversely and evenly distributed on the short supporting columns, the double-arm beams and the short supporting columns form a grid shape, and fixing devices are further arranged on the double-arm beams. Pre-stressed pipes; the fixing device and the double-arm beam are locked and fixed, so that the problem that the positioning precision of the prestressed pipeline is poor due to the fact that the front support is too high and is poor in stability, small in rigidity and prone to deformation is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge engineering construction technical field, concretely is a positioning support of suspension bridge anchoring system stage assembly. BACKGROUND

[0002] The positioning support for the installation of anchoring system in the construction of suspension bridge is usually set up at one time, especially the set up of front support, needs first in the anchorage for it to pour a step higher than the base of rear and middle supports, and this step belongs to the part of anchorage, therefore is equivalent to the time of several layer pouring of construction period, and if not setting the step, the column of front support must be high and strong to meet the deformation requirement, this way is more not used.

[0003] The utility model discloses a positioning support of suspension bridge anchoring system stage assembly to solve the problems mentioned in the above background technology. UTILITY MODEL CONTENTS

[0004] In order to realize the above-mentioned purpose, the utility model provides a positioning support of suspension bridge anchoring system stage assembly, including rear support, middle support and rear connecting rod, the rear support and the middle support all are fixedly installed on the fourth layer anchorage concrete top surface, and mutually parallelly arranged, the rear support with the middle support between fixedly installed with the rear connecting rod, the rear connecting rod with the middle support constitutes triangle,

[0005] Front support, the front support is fixedly installed on the seventh layer anchorage concrete top surface, and the top end of middle support is connected with the top end of front support through front connecting rod,

[0006] Short support column, the rear support, the middle support and the front support all are arrayed with short support column on the same side inclined surface, and the short support column is sequentially increased along with the pouring of each layer anchorage concrete,

[0007] Double beam, a plurality of short support columns are horizontally and uniformly distributed with a plurality of double beams, the double beam and the short support column constitute a grid, and the double beam is further provided with a fixer,

[0008] Prestressed pipe, the prestressed pipe is uniformly distributed in the grid formed by the double beam and the short support column, and is locked and fixed with the double beam through the fixer,

[0009] The fixer comprises a hoop screw rod, a small beam and a nut, the hoop screw rod is installed on the double beam, the small beam is transversely installed on the hoop screw rod and forms a limiting space with a U-shaped groove of the hoop screw rod, the prestressed pipeline is installed in the U-shaped groove, the nut is threadedly connected on the hoop screw rod and is arranged in close contact with the outer wall of the small beam, and the small beam limits and fixes the prestressed pipeline through the nut.

[0010] As a further improvement of the utility model, the rear support, the middle support and the front support all comprise vertical rods and inclined rods, and the vertical rods and the inclined rods are arranged in parallel with each other, the vertical rods of the rear support and the middle support are connected with the rear connecting rod, the rear connecting rod is connected with the top end of the vertical rod of the rear support and the two ends of the vertical rod of the middle support to form a triangle, and each inclined rod is connected with each short support column one by one.

[0011] As a further improvement of the utility model, a diagonal brace is further installed between the rear connecting rod and the vertical rod of the middle support, one end of the diagonal brace is fixedly connected with the center of the vertical rod, and the other end is fixedly connected with the included angle of the rear connecting rod.

[0012] As a further improvement of the utility model, the two ends of the front connecting rod are fixedly connected with the top end of the vertical rod of the front support and the top end of the vertical rod of the middle support respectively.

[0013] As a further improvement of the utility model, the prestressed pipeline comprises a complete pipe and a segmented pipe, the complete pipe is installed after pouring the seventh layer of anchoring concrete, and the segmented pipe is installed after the installation of the complete pipe, the segmented pipe is installed in the construction process of the fourth layer of anchoring concrete to the seventh layer of anchoring concrete, the segmented pipe comprises a first segment of prestressed pipeline and a second segment of prestressed pipeline, the first segment of prestressed pipeline is installed on the double beam of the rear support and the middle support, the second segment of prestressed pipeline is installed on the double beam of the front support, and the first segment of prestressed pipeline, the second segment of prestressed pipeline and the complete pipe are all locked and fixed through the fixer on the double beam.

[0014] As a further improvement of the utility model, the prestressed pipeline is installed in the U-shaped groove, and the small beam is locked and fixed on the first segment of prestressed pipeline, the second segment of prestressed pipeline and the complete pipe through the nut.

[0015] As a further improvement of the utility model, the fixer further comprises two clamping plates, a spherical washer and a nut, taper holes are symmetrically formed in the two clamping plates, the clamping plates are connected with the hoop screw rod through the taper holes, the spherical washer is arranged on the hoop screw rod and located at both sides of the taper holes, the two clamping plates are clamped at both sides of the double beam and locked and fixed to the clamping plates through the nut.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The utility model adopts phased installation for the positioning support of the suspension bridge anchoring system, the rear support and the middle support are installed on the fourth layer anchorage concrete, the first anchor rod of the first section of prestressed pipe is installed, after the seventh layer anchorage concrete is poured, the front support is installed and connected with the two sections of supports, and the second anchor rod of the second section of prestressed pipe is installed, which avoids the erection of the front support being too high, solves the problems of poor stability, small rigidity and easy deformation and poor positioning accuracy of the prestressed pipe, greatly reduces the material consumption of the front support, and compared with the conventional construction scheme, the utility model eliminates the work of formwork, pouring concrete and chiseling, and effectively shortens the construction period.

[0018] 2. The utility model has multi-directional adjustment capability because the space included angle exists between most of the prestressed pipes and the double beam, and the hoop needs to be installed vertically with the prestressed pipe, so the fixer needs to have multi-directional adjustment capability, the upper part of the hoop screw rod of the utility model is clamped with the small beam and the nut, the lower part is clamped with the double beam through the taper hole clamping plate, the spherical washer and the nut, the angle between the hoop screw rod and the clamping plate is adjusted by the spherical washer, the common scheme is fixed by using a small steel frame, the position of the prestressed pipe is difficult to accurately adjust by hoisting equipment, and welding is needed after adjustment, which is time-consuming and laborious, the utility model does not need welding, the prestressed pipe is placed in the approximate position, the clamping plate can be slightly rotated and translated by hammering, the height can be accurately adjusted by screwing the nut, and the installation is completed after the nut is tightened, which is easy and fast and saves materials. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the positioning support of the utility model;

[0020] Figure 2 It is a schematic view of the rear support and the middle support of the utility model being installed on the fourth layer anchorage concrete;

[0021] Figure 3 It is a schematic view of the first anchor rod of the prestressed pipe being installed;

[0022] Figure 4 It is a schematic view of the fifth layer anchorage concrete being poured;

[0023] Figure 5The front support installation schematic view of the utility model is shown in the figure.

[0024] Figure 6 The second anchor rod installation schematic view in the prestressed pipeline of the utility model is shown in the figure.

[0025] Figure 7 The 6th and 7th layer prestressed pipeline installation schematic view of the utility model is shown in the figure.

[0026] Figure 8 The 8th layer anchorage concrete pouring schematic view of the utility model is shown in the figure.

[0027] Figure 9 The prestressed pipeline installation completed schematic view of the utility model is shown in the figure.

[0028] Figure 10 The fixer structure schematic view of the utility model is shown in the figure.

[0029] In the figure: 1, rear support; 2, middle support; 3, rear connecting rod; 4, front support; 5, front connecting rod; 6, short support column; 7, double beam; 8, fixer; 801, hoop screw rod; 802, small beam; 803, clamping plate; 804, spherical washer; 805, nut; 9, prestressed pipeline; 91, first section of prestressed pipeline; 92, second section of prestressed pipeline; 10, fourth layer anchorage concrete; 11, seventh layer anchorage concrete. DETAILED DESCRIPTION

[0030] In order to facilitate understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings, and the drawings show several embodiments of the utility model, but the utility model can be realized by different forms and is not limited to the embodiments described in the text, on the contrary, these embodiments are provided in order to make the disclosed content of the utility model more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs, and the terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model, and the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] The utility model will be described in further detail below in combination with the drawings.

[0033] Embodiment one:

[0034] Please refer to Figures 1-10The utility model provides a positioning support of suspension bridge anchoring system phased assembly, including rear support 1, middle support 2 and rear connecting rod 3, rear support 1 with middle support 2 all are fixedly installed on the top surface of fourth layer anchorage concrete 10, and mutually parallel arrangement, rear support 1 with middle support 2 between fixed mounting has rear connecting rod 3, rear connecting rod 3 with middle support 2 constitute triangle,

[0035] Front support 4, front support 4 fixedly installs on the top surface of seventh layer anchorage concrete 11, and middle support 2 top end with front support 4 top end is connected through front connecting rod 5,

[0036] Short support column 6, rear support 1, middle support 2 and front support 4 same side inclined plane all array distribution has short support column 6, and short support column 6 along every layer anchorage concrete 10 pouring and sequentially increase,

[0037] Double beam 7, a plurality of short support column 6 is evenly distributed with a plurality of double beam 7, and double beam 7 with short support column 6 constitutes grid, and double beam 7 is also equipped with fixer 8,

[0038] Prestressed pipe 9, prestressed pipe 9 is evenly distributed in the grid formed by double beam 7 and short support column 6, and is locked and fixed with double beam 7 through fixer 8,

[0039] Fixer 8 includes hoop screw rod 801, small beam 802 and nut, hoop screw rod 801 is installed on double beam 7, small beam 802 is transversely installed on hoop screw rod 801, and forms a limiting space with the U-shaped groove of hoop screw rod 801, prestressed pipe 9 is installed in the U-shaped groove, hoop screw rod 801 is threadedly connected with nut, nut is attached to the outer wall of small beam 802, and prestressed pipe 9 is limited and fixed by small beam through nut.

[0040] Rear support 1, middle support 2 and front support 4 all include vertical rod and inclined rod, and the vertical rod and the inclined rod are mutually parallel arranged, the vertical rod of rear support 1 and middle support 2 is connected with rear connecting rod 3, rear connecting rod 3 is connected with the vertical rod top end of rear support 1 and the vertical rod both ends of middle support 2 to form a triangle, and each inclined rod is connected with each short support column 6 one by one.

[0041] Rear connecting rod 3 and the vertical rod of middle support 2 are also provided with a diagonal brace, one end of the diagonal brace is fixedly connected with the vertical rod, and the other end is fixedly connected with the included angle of rear connecting rod 3.

[0042] The front connecting rod 5 is connected and fixed with the top end of the vertical rod of the front support 4 and the top end of the vertical rod of the middle support 2 respectively.

[0043] The prestressed pipe 9 includes a complete pipe and a segmented pipe, the complete pipe is installed after the pouring of the seventh layer anchoring concrete and the installation of the segmented pipe, the segmented pipe is installed during the construction of the fourth layer anchoring concrete to the seventh layer anchoring concrete, the segmented pipe includes a first prestressed pipe segment 91 and a second prestressed pipe segment 92, the first prestressed pipe segment 91 is installed on the double-beam 7 of the rear support 1 and the middle support 2, the second prestressed pipe segment 92 is installed on the double-beam 7 of the front support, the first prestressed pipe segment 91, the second prestressed pipe segment 92 and the complete pipe are locked and fixed by the fixer 8 on the double-beam 7.

[0044] The first prestressed pipe segment 91, the second prestressed pipe segment 92 and the complete pipe are installed in the U-shaped groove, the small-beam 802 is controlled by the nut to lock and fix the first prestressed pipe segment 91, the second prestressed pipe segment 92 and the complete pipe.

[0045] In construction, first install the rear support 1 and the middle support 2 on the fourth layer of anchorage concrete 10, install the rear connecting rod 3, form a stable triangular support structure, install the short support column 6 at the end of the inclined rod of the rear support 1 and the middle support 2, the short support column 6 is made of light steel, install the double beam 7 on the short support column 6, select a steel beam of appropriate specification for the double beam 7 to ensure that its strength can support the subsequent installation of the prestressed pipe 9, place two fixers 8 at the corresponding positions of the first section 91 of the prestressed pipe, and tighten the nuts under the small beam 802 to lock the two fixers 8 on the first section 91 of the prestressed pipe, place the prestressed pipe with the fixer 8 on the double beam 7, at this time the fixer 8 is only on the double beam 7 along the installed clamping plate 803 and the nut 805 thereon, after accurate positioning, install the clamping plate 803 at the lower edge of the double beam 7 and tighten the nut 805 under the clamping plate 803 to complete the installation of the first section 91 of the prestressed pipe, repeat the above steps to complete the installation of the first section 91 of the prestressed pipe of two layers, with the layer-by-layer pouring of the fifth to seventh layers of anchorage concrete 11, each layer is strictly repeated the above installation steps, after the seventh layer of anchorage concrete 11 is poured, the front support 4 is installed, the front support 4 is connected with the middle support 2 through the front connecting rod 5 to form a stable overall structure, then the second section 92 of the prestressed pipe is installed according to the above installation steps of the first section 91 of the prestressed pipe and is connected with the first section 91 of the prestressed pipe, after all the second sections 92 of the prestressed pipe are installed, with the layer-by-layer pouring of the eighth to tenth layers of anchorage concrete, each layer is strictly repeated the above installation steps of the first section 91 of the prestressed pipe to complete the installation of all unsegmented prestressed pipes 9, the whole construction process is smooth, and the positioning support effectively guarantees the installation accuracy of the anchoring system. In the embodiment, the positioning support of the cable-stayed bridge anchoring system is installed in stages, the rear support 1 and the middle support 2 are first installed on the fourth layer of anchorage concrete 10, and then the first section 91 of the prestressed pipe is installed; after the seventh layer of anchorage concrete 10 is poured, the front support 4 is installed and connected with the previous supports, and then the installation of all the second sections 92 of the prestressed pipe and the complete pipe is completed. This scheme avoids the erection of the front support 4 being too high, solves the problems of poor stability, small rigidity, easy deformation and poor positioning accuracy of the prestressed pipe 9, and greatly reduces the material consumption of the front support 4. Compared with the conventional construction scheme which needs to pour a high step for installing the front support 4, this scheme eliminates the work of formwork, pouring concrete and chiseling, and effectively shortens the construction period.

[0046] Embodiment Two:

[0047] Please refer to Figure 1 , Figure 10The fixing device 8 includes a clamping screw 801, a small supporting beam 802, and a nut. The clamping screw 801 is installed on the double supporting beam 7, and the small supporting beam 802 is installed laterally on the clamping screw 801, forming a limiting space with the U-shaped groove of the clamping screw 801. A nut is threaded onto the clamping screw 801, and the nut is set to fit against the outer wall of the small supporting beam 802. The first anchor rod or the second anchor rod is inserted into the U-shaped groove, and the nut controls the small supporting beam 802 to lock and fix the first anchor rod or the second anchor rod.

[0048] The fixture 8 also includes two clamping plates 803, spherical washers 804, and nuts. Each of the two clamping plates 803 has a tapered hole symmetrically provided. The clamping plates 803 are connected to the clamping screw 801 through the tapered holes. The clamping screw 801 is provided with spherical washers 804 and is provided on both sides of the tapered holes. The two clamping plates 803 are clamped on both sides of the double beam 7 and locked and fixed by nuts.

[0049] In use, place the prestressed duct 9 (first section 91 and second section 92) into the U-shaped groove of the clamping bolt 801. Then, tighten the two nuts on the clamping bolt 801 to lock the prestressed duct 9 in place by the small support beam 802. Since the two clamping plates 803 clamp both sides of the double support beam 7, the sliding clamping plates 803 can be slightly rotated and translated on the double support beam 7 by hammering them. Tightening the nuts on the clamping bolt 801 that fit with the clamping plates 803 can precisely adjust the height of the prestressed duct 9. After positioning, tighten the bottom 2 nuts on the clamping bolt 801. A single nut 805 can fix the prestressed duct 9 at different spatial angles onto the double-beam 7. In this embodiment, the angle between the clamping bolt 801 and the clamping plate 803 can be adjusted using a spherical washer 804. The common solution is to fix it with a small steel frame. When measuring and setting out, it is difficult for the hoisting equipment to finely adjust the position of the prestressed duct 9. After adjustment, welding is required, which is time-consuming and labor-intensive. This fixing device 8 does not require welding. The prestressed duct 9 is placed in the approximate position, and the clamping plate 803 can be slightly rotated and translated by hammering. The height can be precisely adjusted by tightening the nut. After positioning, tightening the nut completes the installation. The process is easy, quick and saves materials.

[0050] The construction steps for a positioning bracket for a suspension bridge anchorage system assembled in stages are as follows:

[0051] Step 1: First, install the rear support 1 and the middle support 2 on the fourth layer of anchor concrete 10, with the two set in parallel. Then, install the rear connecting rod 3 between the rear support 1 and the middle support 2 to form a stable frame.

[0052] Step 2: Then install short support columns 6 at the end of each inclined rod of the rear support 1 and the middle support 2, and then install several double-bearing beams 7 on the short support columns 6.

[0053] Step three, install the first segment of prestressed pipe 91 on each double beam 7, and lock and fix the first segment of prestressed pipe 91 with the double beam 7 through the fixer 8;

[0054] Step four, repeat step two and step three once;

[0055] Step five, then pour the fifth to seventh layers of anchorage concrete 11, repeat step two and step three for each layer of pouring anchorage concrete until the seventh layer of anchorage concrete 11 is poured;

[0056] Step six, install the front support 4 on the seventh layer of anchorage concrete 11, and then install the front connecting rod 5 between the top of the middle support 2 and the top end of the front support 4, so as to form a stable frame body;

[0057] Step seven, then install the short support column 6 and the double beam 7, and then install the second segment of prestressed pipe 92, lock and fix the second segment of prestressed pipe 92 with the double beam 7 through the fixer 8, and then butt joint the first segment of prestressed pipe 91 and the second segment of prestressed pipe 92, and gradually repeat the above steps until all the second segments of prestressed pipe 92 are installed;

[0058] Step eight, then install the short support column 6 at the end of each inclined rod of the rear support 1, the middle support 2 and the front support 4, and then install a plurality of double beams 7 on the short support column 6;

[0059] Step nine, install the prestressed pipe 9 on each double beam 7, and lock and fix the prestressed pipe 9 with the double beam 7 through the fixer 8;

[0060] Step ten, repeat step eight and step nine once;

[0061] Then pour the eighth to tenth layers of anchorage concrete, and repeat steps eight to ten for each layer of pouring anchorage concrete until all the prestressed pipes 9 are installed.

[0062] The above describes the utility model with reference to the drawings, obviously, the specific implementation of the utility model is not limited to the above manner, as long as the method concept and technical solution of the utility model are adopted for such non-essential improvement, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, all of which are within the protection scope of the utility model.

Claims

1. A positioning support for staged assembly of a suspension bridge anchoring system, characterized in that: It includes rear support (1), middle support (2) and rear connecting rod (3);The rear support (1) and the middle support (2) are both fixedly installed on the top surface of the fourth layer anchor concrete (10), and are arranged in parallel with each other, the rear connecting rod (3) is fixedly installed between the rear support (1) and the middle support (2), the rear connecting rod (3) and the middle support (2) form a triangle; Front support (4);The front support (4) is fixedly installed on the top surface of the seventh layer anchor concrete (11), and the top end of the middle support (2) is connected with the top end of the front support (4) through the front connecting rod (5); Short strut (6);The rear support (1), the middle support (2) and the front support (4) are all arranged on the same side inclined surface, and the short strut (6) is arranged on the same side inclined surface, and the short strut (6) is sequentially increased along the pouring of each layer anchor concrete (10); Double beam (7);A plurality of short struts (6) are uniformly distributed with a plurality of double beams (7) on the short struts (6), and the double beams (7) and the short struts (6) form a grid, and the double beams (7) are provided with a fixing device (8); Prestressed pipe (9);The prestressed pipe (9) is uniformly distributed in the grid formed by the double beam (7) and the short strut (6), and is locked and fixed with the double beam (7) through the fixing device (8); The fixing device (8) includes a hoop screw (801), a small beam (802) and a nut, the hoop screw (801) is installed on the double beam (7), the small beam (802) is transversely installed on the hoop screw (801), and the small beam (802) and the U-shaped groove of the hoop screw (801) form a limiting space, the prestressed pipe (9) is installed in the U-shaped groove, the hoop screw (801) is threadedly connected with the nut, the nut is attached to the outer wall of the small beam (802), and the small beam (802) is limited and fixed to the prestressed pipe (9) by the nut.

2. The positioning support for the staged assembly of a suspension bridge anchoring system according to claim 1, characterized in that: The rear support (1), the middle support (2) and the front support (4) all include vertical rods and inclined rods, and the vertical rods and the inclined rods are arranged in parallel with each other, the vertical rods of the rear support (1) and the middle support (2) are connected with the rear connecting rod (3), the rear connecting rod (3) is connected with the top end of the vertical rod of the rear support (1) and the two ends of the vertical rod of the middle support (2) to form a triangle, and each inclined rod is connected with each short strut (6) one by one.

3. The positioning support for the staged assembly of a suspension bridge anchoring system according to claim 2, characterized in that: The rear connecting rod (3) and the vertical rod of the middle support (2) are further provided with a diagonal brace, one end of the diagonal brace is fixedly connected with the center of the vertical rod, and the other end is fixedly connected with the included angle of the rear connecting rod (3).

4. The positioning support for the staged assembly of a suspension bridge anchoring system according to claim 2, characterized in that: The front connecting rod (5) is respectively connected with the top end of the vertical rod of the front support (4) and the top end of the vertical rod of the middle support (2).

5. The positioning support for the staged assembly of a suspension bridge anchoring system according to claim 1, characterized in that: The prestressed pipe (9) comprises a complete pipe and a segmented pipe, the complete pipe is installed from the seventh layer of anchor concrete pouring and the segmented pipe is installed after installation, the segmented pipe is installed during the construction of the fourth layer of anchor concrete to the seventh layer of anchor concrete, the segmented pipe comprises a prestressed pipe first segment (91) and a prestressed pipe second segment (92), the prestressed pipe first segment (91) is installed on the double beam (7) of the rear support (1) and the middle support (2), the prestressed pipe second segment (92) is installed on the double beam (7) of the front support, the prestressed pipe first segment (91), the prestressed pipe second segment (92) and the complete pipe are locked and fixed through the fixator (8) on the double beam (7).

6. The positioning support for the staged assembly of a suspension bridge anchoring system according to claim 5, characterized in that: The prestressed pipe (9) is installed in the U-shaped groove, and the small beam (802) is used to lock and fix the prestressed pipe first segment (91), the prestressed pipe second segment (92) and the complete pipe through the screw nut.

7. The positioning support for the staged assembly of a suspension bridge anchoring system according to claim 1, characterized in that: The fixator (8) further comprises two clamping plates (803), spherical washers (804) and nuts (805), the two clamping plates (803) are symmetrically provided with taper holes, the clamping plates (803) are connected with the hoop screw rod (801) through the taper holes, the hoop screw rod (801) is provided with spherical washers (804) and is arranged on both sides of the taper hole, the two clamping plates (803) are clamped on both sides of the double beam (7) and are locked and fixed through the nuts (805).

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