CN204715225U - A kind of bridge jacking platform based on steel hoop - Google Patents

Abstract

The utility model discloses a bridge jacking platform based on steel hoops. The high-strength bolts arranged from top to bottom are fastened and fixed on the pier column. The high-strength bolt includes a bolt rod and an adjusting nut. The locking and fixing structure tightly fixed on the outside of the pier column; two first vertical stiffeners are symmetrically arranged on the hoop steel plate, and the two first vertical stiffeners are respectively the left stiffener and the right stiffener; The left stiffeners of two hoop steel plates and the right stiffeners of two hoop steel plates are fastened and connected by multiple rows of fastening bolts. The utility model has the advantages of simple structure, reasonable design, low input cost, easy loading and unloading, and good use effect. It is directly fixed on the pier column without construction of supporting foundation, and can be reused.

Description

A bridge jacking platform based on steel hoop

technical field

The utility model relates to a bridge jacking platform, in particular to a bridge jacking platform based on steel hoops.

Background technique

As an important part of the bridge structure, the bearing is the force transmission and connection device of the upper and lower structures of the bridge. It reliably transmits the force of the upper load to the bridge pier and balances the deformation caused by various loads and external forces. Due to improper problems in design, construction, maintenance and the quality of the bearing itself, the bearing often suffers from disease, which causes the beam body to fail to work according to the normal stress state, and even affects the operation safety of the bridge structure. Therefore, for damaged bearings It must be replaced in time. When using the bridge jacking method to replace the bearing, not only does not affect the normal use of other bridge components, but also saves investment, can effectively shorten the construction period, and reduce traffic impact. The bridge jacking platform is the key equipment when the bridge jacking method is used to replace the bearing.

Traditional bridge jacking platforms are often provided by cap beams or temporary supports. In actual use, the above-mentioned traditional bridge jacking platform mainly has the following problems: First, when the size of the bridge pier cover beam is not enough to place the jacking equipment, or the bridge only has pier columns but no cover beam, it can only be used Temporarily set up steel pipe supports to provide a jacking platform; Second, erecting temporary steel pipe supports as a construction platform during the bridge jacking process often requires additional support foundations, or the existing bridge foundations are transformed and treated as support foundations for jacking construction It will lose its function after completion, and the input cost is high, especially under the condition of weak foundation, the disposal cost of the foundation is higher, which is not conducive to repeated use and is extremely uneconomical.

Utility model content

The technical problem to be solved by the utility model is to provide a bridge jacking platform based on steel hoops, which has a simple structure, reasonable design, low investment cost, easy loading and unloading, and good use effect in view of the above-mentioned deficiencies in the prior art. It is directly fixed on the pier column of the bridge, does not need to construct the supporting foundation, and can be reused.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a bridge jacking platform based on steel hoops, which is characterized in that it includes two hoop steel plates respectively arranged on the outside of the pier columns of the bridge, and the two The structure of the hoop steel plate is the same and the two are arranged symmetrically, the two hoop steel plates are semicircular steel plates arranged vertically, and the pier column is a cylindrical column;

The hoop steel plate is fastened and fixed on the pier column by multiple rows of high-strength bolts arranged from top to bottom, and each row of high-strength bolts includes a plurality of high-strength bolts located on the same plane. The bolts are arranged along the circumferential direction; each of the high-strength bolts includes a horizontally arranged bolt shank and an adjusting nut installed on the outer end of the bolt shank and adjusting the length of the bolt shank extending into the inner side of the hoop steel plate. The adjusting nut is located on the outer side of the hoop steel plate, and the inner end of the bolt rod is supported on the outer wall of the pier column; multiple rows of high-strength bolts form a locking and fixing mechanism for locking and fixing the hoop steel plate to the outer side of the pier column. structure, the hoop steel plate is provided with a plurality of first bolt installation holes for high-strength bolts; the hoop steel plate is symmetrically provided with two first vertical stiffeners arranged vertically, and the two The first vertical stiffeners are arranged on the same vertical plane, and the two are respectively the left stiffener and the right stiffener located outside the left and right ends of the hoop steel plate, and the first vertical stiffener is rectangular and straight steel plate;

The left side stiffeners of the two hoop steel plates are arranged in parallel, the right stiffeners of the two hoop steel plates are arranged in parallel, between the left stiffeners of the two hoop steel plates and between the two The right side stiffeners of the hoop steel plates are fastened and connected by multiple rows of fastening bolts.

The above-mentioned bridge jacking platform based on steel hoops is characterized in that: each row of high-strength bolts includes a plurality of left high-strength bolts located on the left side of the hoop steel plate and a plurality of right side bolts located on the right side of the hoop steel plate. The high-strength bolts, the number of the left high-strength bolts and the right high-strength bolts are the same, and the multiple left high-strength bolts and the multiple right high-strength bolts are arranged symmetrically.

The above-mentioned bridge jacking platform based on steel hoops is characterized in that: the multiple rows of high-strength bolts installed on the two hoop steel plates are symmetrically arranged front and back.

The above-mentioned bridge jacking platform based on steel hoops is characterized in that: the outer sides of the two first vertical stiffeners are connected from top to bottom with a plurality of ear plates, and the structures of the plurality of ear plates are uniform. Similarly, the plurality of ear plates are arranged horizontally and fixed on the outer wall of the hoop steel plate; the first vertical stiffener is divided into a plurality of first stiffener segments by the plurality of ear plates , each of the first stiffener segments is fixed between two upper and lower adjacent ear plates.

The above-mentioned bridge jacking platform based on steel hoops is characterized in that: a second vertical stiffener is provided on the outside of the two first vertical stiffeners, and the second vertical stiffener is connected to the first vertical stiffener. A vertical stiffener is arranged in parallel, the second vertical stiffener is located in the middle of the plurality of ear plates and fixed on the outer wall of the hoop steel plate; the second vertical stiffener passes through the plurality of The ear plate is divided into a plurality of second stiffener segments, and each second stiffener segment is fixed between two upper and lower adjacent ear plates.

The above-mentioned bridge jacking platform based on steel hoops is characterized in that: a third vertical stiffener is arranged on the outside of the two first vertical stiffeners, and the third vertical stiffener is connected to the first vertical stiffener. A vertical stiffener is vertically arranged and its front part is fixed on the first vertical stiffener; the third vertical stiffener is divided into a plurality of third stiffener segments by a plurality of ear plates, each Each of the third stiffener segments is fixed between two upper and lower adjacent ear plates, and each of the third stiffener segments is tightly connected with one second stiffener segment as a whole.

The above-mentioned bridge jacking platform based on steel hoops is characterized in that: each of the third stiffener segments is divided into front and rear parts by the second stiffener segment; segment and said third stiffener segment are rectangular flat steel plates.

The above-mentioned bridge jacking platform based on steel hoops is characterized in that: the second vertical stiffeners and the third vertical stiffeners arranged on the left and right sides of the hoop steel plates are arranged symmetrically; The first vertical stiffener, the second vertical stiffener and the third vertical stiffener arranged on the hoop steel plate are all symmetrically arranged front and back.

The above-mentioned bridge jacking platform based on steel hoops is characterized in that: multiple rows of fastening bolts are arranged in multiple rows from left to right, and multiple rows of high-strength bolts are arranged in multiple rows from left to right. Each of the high-strength bolts is arranged vertically to the inner wall of the hoop steel plate at the location where it is arranged.

The above-mentioned bridge jacking platform based on steel hoops is characterized in that: the hoop steel plate is bent from a rectangular steel plate.

Compared with the prior art, the utility model has the following advantages:

1. The structure is simple, the input cost is low, the processing and production, installation and layout are convenient, the construction is simple, and the construction period is short.

2. It is easy to use and operate, and the inner diameter of the cylindrical locking device can be easily and quickly adjusted by tightening or loosening the high-strength bolts to meet the use requirements of piers with similar diameters, and has strong adaptability.

3. It has good use effect and high practical value. It is directly fixed on the pier column of the bridge. It does not need to construct a supporting foundation. It is easy to load and unload and can be reused. High cost, non-reusable, long construction period and other issues.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the ear plates on the left and right sides of the pier column and the vertical stiffeners of the utility model.

Fig. 3 is a schematic diagram of the unfolded structure of the hoop steel plate of the present invention.

Explanation of reference signs:

1—ear plate; 2—third vertical stiffener; 3—steel plate for hoop;

4—the second vertical stiffener; 5—the first vertical stiffener; 6—fastening bolts;

6-1—Second bolt installation hole; 7—Pier column; 8—High strength bolt;

8-1—the first bolt installation hole.

Detailed ways

As shown in Fig. 1 and Fig. 2, the utility model comprises two hoop steel plates 3 respectively arranged on the outside of the pier column 7, the structures of the two hoop steel plates 3 are the same and the two are symmetrically arranged, and the two hoop steel plates 3 are arranged symmetrically. The hoop steel plates 3 are semicircular steel plates arranged vertically, and the pier columns 7 are cylindrical columns.

The hoop steel plate 3 is fastened and fixed on the pier column 7 by multiple rows of high-strength bolts 8 arranged from top to bottom, and each row of high-strength bolts 8 includes a plurality of high-strength bolts 8 located on the same plane, A plurality of high-strength bolts 8 are arranged along the circumferential direction; each of the high-strength bolts 8 includes a horizontally arranged bolt shank and a bolt that is installed on the outer end of the bolt shank and extends into the inner side of the hoop steel plate 3 for the bolt shank. An adjusting nut for adjusting the length, the adjusting nut is located on the outside of the hoop steel plate 3, and the inner end of the bolt rod is supported on the outer wall of the pier column 7. Multiple rows of high-strength bolts 8 form a locking and fixing structure that locks and fixes the hoop steel plate 3 on the outside of the pier column 7, and the hoop steel plate 3 is provided with a plurality of first bolt installation holes for the high-strength bolts 8 to be installed. 8-1. The hoop steel plate 3 is symmetrically provided with two first vertical stiffeners 5 arranged vertically, and the two first vertical stiffeners 5 are arranged on the same vertical plane and the two are respectively located at The left stiffener and the right stiffener outside the left and right ends of the hoop steel plate 3, the first vertical stiffener 5 is a rectangular straight steel plate.

The left side stiffeners of the two hoop steel plates 3 are arranged in parallel, the right side stiffeners of the two hoop steel plates 3 are arranged in parallel, and between the left side stiffeners of the two hoop steel plates 3 and The right side stiffeners of the two hoop steel plates 3 are fastened and connected by multiple rows of fastening bolts 6 .

In actual use, the locking and fixing structure installed with the two hoop steel plates 3 forms a cylindrical locking device with adjustable inner diameter.

In this embodiment, the left side stiffener and the right side stiffener of the hoop steel plate 3 are both provided with a plurality of second bolt installation holes 6 - 1 for the fastening bolts 6 to be installed.

In this embodiment, each row of high-strength bolts 8 includes a plurality of left high-strength bolts positioned on the left side of the hoop steel plate 3 and a plurality of right high-strength bolts positioned on the right side of the hoop steel plate 3, and the left high-strength bolts The number of the high-strength bolts on the right side is the same, and the plurality of high-strength bolts on the left side and the high-strength bolts on the right side are arranged symmetrically.

Moreover, the multiple rows of high-strength bolts 8 installed on the two hoop steel plates 3 are symmetrically arranged front and back.

In actual use, multiple rows of fastening bolts 6 are laid out in multiple rows from left to right, and multiple rows of high-strength bolts 8 are laid out in multiple columns from left to right, and each of the high-strength bolts 8 is laid out in accordance with the The inner wall of the hoop steel plate 3 at the position is vertically arranged.

In this embodiment, four rows of high-strength bolts 8 are installed on the hoop steel plate 3, and the four rows of high-strength bolts 8 are arranged in 8 rows from left to right; the left sides of the two hoop steel plates 3 Both the stiffeners and the right stiffeners of the two hoop steel plates 3 are connected by 8 fastening bolts 6, and the 8 fastening bolts 6 are arranged in four rows and two columns.

In actual use, the quantity of high-strength bolts 8 and fastening bolts 6 can be adjusted accordingly according to specific needs.

In this embodiment, the outer sides of the two first vertical stiffeners 5 are connected with a plurality of ear plates 1 from top to bottom, the structures of the plurality of ear plates 1 are the same, and the plurality of ear plates 1 They are all arranged horizontally and fixed on the outer wall of the hoop steel plate 3; the first vertical stiffener 5 is divided into a plurality of first stiffener segments by a plurality of ear plates 1, and each of the The first stiffener segments are all fixed between two upper and lower adjacent ear plates 1 .

Moreover, the first stiffener segment is fixedly connected to the ear plate 1 and the hoop steel plate 3 by welding.

In this embodiment, a second vertical stiffener 4 is provided on the outside of the two first vertical stiffeners 5, and the second vertical stiffener 4 is arranged in parallel with the first vertical stiffener 5. , the second vertical stiffener 4 is located in the middle of the plurality of ear plates 1 and is fixed on the outer wall of the hoop steel plate 3; the second vertical stiffener 4 passes through the plurality of ear plates 1 It is divided into a plurality of second stiffener segments, each of which is fixed between two upper and lower adjacent ear plates 1 .

Moreover, the second stiffener segment is fixedly connected to the ear plate 1 and the hoop steel plate 3 by welding.

In this embodiment, a third vertical stiffener 2 is provided on the outside of the two first vertical stiffeners 5, and the third vertical stiffener 2 is vertically arranged with the first vertical stiffener 5. And its front part is fixed on the first vertical stiffener 5; The third vertical stiffener 2 is divided into a plurality of third stiffener segments by a plurality of ear plates 1, each of the third stiffeners The rib segments are all fixed between two upper and lower adjacent ear plates 1 , and each of the third stiffening rib segments is tightly connected with one of the second stiffening rib segments as a whole.

Moreover, the third stiffener segment is fixedly connected with the first stiffener segment, the second stiffer segment, the ear plate 1 and the hoop steel plate 3 by welding.

In this embodiment, each of the third stiffener segments is divided into front and rear parts by the second stiffener segment. Both the second stiffener section and the third stiffener section are rectangular flat steel plates.

In this embodiment, the second vertical stiffener 4 and the third vertical stiffener 2 arranged on the left and right sides of the hoop steel plate 3 are arranged symmetrically; The vertical stiffeners 5, the second vertical stiffeners 4 and the third vertical stiffeners 2 are arranged symmetrically front and back.

As shown in FIG. 3 , the hoop steel plate 3 is formed by bending a rectangular steel plate.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (10)

1. a bridge jacking platform based on steel hoops, is characterized in that: comprise two hoop steel plates (3) that are respectively arranged on the outside of bridge pier pier columns (7), two of said hoop steel plates (3) The structure is the same and the two are symmetrically arranged, the two hoop steel plates (3) are semicircular steel plates arranged vertically, and the pier column (7) is a cylindrical column; The hoop steel plate (3) is fastened and fixed on the pier column (7) by multiple rows of high-strength bolts (8) arranged from top to bottom, and each row of high-strength bolts (8) includes a A plurality of high-strength bolts (8), a plurality of high-strength bolts (8) are arranged along the circumferential direction; each of the high-strength bolts (8) includes a horizontally arranged bolt shank and is installed on the outer end of the bolt shank And the adjusting nut that the length that described bolt rod stretches into hoop steel plate (3) inner side is adjusted, described adjusting nut is positioned at hoop steel plate (3) outside, and the inner end support of described bolt rod is supported on bridge pier pier column ( 7) on the outer wall; multiple rows of high-strength bolts (8) form a locking and fixing structure that locks and fixes the hoop steel plate (3) on the outside of the pier column (7), and the hoop steel plate (3) There are a plurality of first bolt installation holes (8-1) for the installation of high-strength bolts (8); two first vertical stiffeners ( 5), the two first vertical stiffeners (5) are arranged on the same vertical plane and the two are respectively the left stiffener and the right stiffener located outside the left and right ends of the hoop steel plate (3), The first vertical stiffener (5) is a rectangular flat steel plate; The left side stiffeners of the two hoop steel plates (3) are arranged in parallel, the right side stiffeners of the two hoop steel plates (3) are arranged in parallel, and the left side of the two hoop steel plates (3) Between the side stiffeners and between the right side stiffeners of the two hoop steel plates (3) are fastened and connected by multiple rows of fastening bolts (6). 2. The bridge jacking platform based on steel hoops according to claim 1, characterized in that: each row of high-strength bolts (8) includes a plurality of left side bolts located on the left side of the hoop steel plate (3) High-strength bolts and a plurality of right high-strength bolts located on the right side of the hoop steel plate (3), the number of the left high-strength bolts and the right high-strength bolts is the same, and the plurality of left high-strength bolts and the plurality of right The side high-strength bolts are arranged symmetrically. 3. A bridge jacking platform based on steel hoops according to claim 1 or 2, characterized in that: the multiple rows of high-strength bolts (8) installed on the two hoop steel plates (3) are in the form of Symmetrically arranged front and rear. 4. A steel hoop-based bridge jacking platform according to claim 1 or 2, characterized in that: the outer sides of the two first vertical stiffeners (5) are connected from top to bottom by multiple a plurality of lugs (1), the structures of the plurality of lugs (1) are all the same, and the plurality of lugs (1) are arranged horizontally and fixed on the outer sidewall of the hoop steel plate (3); The first vertical stiffener (5) is divided into a plurality of first stiffener segments by a plurality of ear plates (1), each of the first stiffener segments is fixed on two adjacent upper and lower between the ear plates (1). 5. A bridge jacking platform based on steel hoops according to claim 4, characterized in that: a second vertical stiffener is provided on the outer sides of the two first vertical stiffeners (5) (4), the second vertical stiffener (4) is arranged in parallel with the first vertical stiffener (5), and the second vertical stiffener (4) is located on a plurality of the ear plates (1) and it is fixed on the outer wall of the hoop steel plate (3); the second vertical stiffener (4) is divided into a plurality of second stiffener segments by a plurality of ear plates (1), each Each of the second stiffener segments is fixed between two upper and lower adjacent ear plates (1). 6. A bridge jacking platform based on steel hoops according to claim 5, characterized in that: a third vertical stiffener is provided on the outside of the two first vertical stiffeners (5) (2), the third vertical stiffener (2) and the first vertical stiffener (5) are vertically arranged and its front part is fixed on the first vertical stiffener (5); the third vertical stiffener Stiffeners (2) are divided into a plurality of third stiffener segments by a plurality of ear plates (1), each of the third stiffener segments is fixed on two adjacent upper and lower ear plates ( 1), each of the third stiffener segments is tightly connected with one of the second stiffener segments as a whole. 7. A bridge jacking platform based on steel hoops according to claim 6, characterized in that: each of the third stiffener segments is divided into front and rear parts by the second stiffener segment ; The second stiffener section and the third stiffener section are rectangular straight steel plates. 8. The bridge jacking platform based on steel hoops according to claim 6, characterized in that: the second vertical stiffeners (4) and the third vertical stiffeners (4) arranged on the left and right sides of the hoop steel plate (3) The vertical stiffeners (2) are arranged symmetrically from left to right; the first vertical stiffeners (5), the second vertical stiffeners (4) and the third vertical The stiffeners (2) are arranged symmetrically front and back. 9. A bridge jacking platform based on steel hoops according to claim 1 or 2, characterized in that: multiple rows of fastening bolts (6) are arranged in multiple rows from left to right, and the multiple rows The high-strength bolts (8) are arranged in multiple rows from left to right, and each of the high-strength bolts (8) is arranged vertically to the inner side wall of the hoop steel plate (3) at the position where it is arranged. 10. A bridge jacking platform based on steel hoops according to claim 1 or 2, characterized in that: the hoop steel plate (3) is formed by bending a rectangular steel plate.