CN214783190U - Prestressed ultrahigh-performance concrete continuous box girder bridge - Google Patents
Prestressed ultrahigh-performance concrete continuous box girder bridge Download PDFInfo
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- CN214783190U CN214783190U CN202120757377.7U CN202120757377U CN214783190U CN 214783190 U CN214783190 U CN 214783190U CN 202120757377 U CN202120757377 U CN 202120757377U CN 214783190 U CN214783190 U CN 214783190U
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- box girder
- girder bridge
- bracing piece
- backup pad
- cross
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Abstract
The utility model relates to a bridge engineering technical field, especially continuous box girder bridge of prestressing force ultra-high performance concrete, including the box girder bridge body, the roof bottom of box girder bridge body be provided with the cross backup pad, one side of cross backup pad be provided with first bracing piece and second bracing piece, the middle part of cross backup pad one side be provided with bearing structure, the bottom of box girder bridge body be provided with fixing base and support post, one side of fixing base be provided with connecting elements. The utility model has the advantages that: through the cooperation setting of cross backup pad, first bracing piece, second bracing piece, support post, roof support and screw rod, make the cross backup pad can carry out more stable supporting work to the top of box girder bridge body, make box girder bridge body can bear bigger power, very big reduction box girder bridge body atress take place the condition of deformation such as distortion, torsion, reached the assurance box girder bridge body the effect of stability.
Description
Technical Field
The utility model relates to a bridge engineering technical field, especially continuous box girder bridge of prestressing force ultra high performance concrete.
Background
The prestressed concrete continuous box girder bridge has the characteristics of attractive appearance and strong applicability, and is widely applied to medium and small-span highway bridges. The multi-span continuous beam bridge structure usually adopts a prestressed concrete box-shaped section form, the torsional rigidity of the closed thin-wall box-shaped section is very large, and the top and bottom plates have large areas, so that the structure can resist huge flange pressure, meet the arrangement requirement of prestressed reinforcements, and effectively resist the action of positive and negative bending moments. The prestressed concrete continuous box girder bridge has the advantages of strong spanning capability, large structural safety, good integrity, large structural rigidity, good torsion resistance, few expansion joints of the bridge deck, comfortable driving and the like.
However, the existing concrete continuous box girder bridge is generally lack of a supporting member when being installed, the cross section of the box girder bridge per se can deform such as distortion and torsion after being stressed, and the problems of concrete cracking, uneven stress and the like can be caused in serious cases, so that the stability of the concrete continuous box girder bridge is poor, and the final quality of the concrete continuous box girder bridge is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a continuous box girder bridge of prestressing force ultra-high performance concrete.
The purpose of the utility model is realized through the following technical scheme: the utility model provides a continuous box girder bridge of prestressing force ultra high performance concrete, includes the box girder bridge body, the roof bottom of box girder bridge body be provided with the cross backup pad, one side of cross backup pad be provided with first bracing piece and second bracing piece, the middle part of cross backup pad one side be provided with bearing structure, the bottom of box girder bridge body be provided with fixing base and support post, one side of fixing base be provided with connecting elements.
Optionally, one side fixedly connected with first connecting steel plate of cross backup pad, first connecting steel plate pass through threaded rod and nut and first bracing piece fixed connection, the top fixedly connected with second connecting steel plate of fixing base, second connecting steel plate pass through threaded rod and nut and first bracing piece and keep away from the one end fixed connection of cross backup pad, the quantity of first connecting steel plate, second connecting steel plate and first bracing piece be two, two the distribution of first bracing piece symmetry in one side of cross backup pad, through first bracing piece have connected cross backup pad and fixing base.
Optionally, one end of the second supporting rod is fixedly connected with the cross supporting plate, one end of the second supporting rod far away from the cross supporting plate is fixedly connected with the supporting upright, the second supporting rod is inclined and arranged, the middle part of one side of the second supporting rod is fixedly connected with the connecting supporting rod, the number of the second supporting rods is two, the second supporting rods are symmetrically distributed on one side of the cross supporting plate, and the first supporting rod and the two second supporting rods are distributed at four corners of the cross supporting plate.
Optionally, the supporting structure comprises a supporting top plate and a screw rod, the supporting top plate is in contact with the middle of the cross supporting plate, the screw rod is fixedly connected to one side, away from the cross supporting plate, of the supporting top plate, the screw rod is in threaded connection with the supporting upright column, the screw rod is rotated to enable the supporting top plate to ascend or descend, and therefore the height of the supporting top plate can be better adjusted, and the supporting top plate is tightly attached to the cross supporting plate.
Optionally, one side of the supporting column is fixedly connected with a third connecting steel plate, the third connecting steel plate is fixedly connected with a supporting cross rod through a threaded rod and a nut, a fourth connecting steel plate is pre-embedded in a web of the box girder bridge body, one end, far away from the supporting column, of the supporting cross rod is fixedly connected with the fourth connecting steel plate through the threaded rod and the nut, and the web of the box girder bridge body can be connected with the supporting column through the supporting cross rod, so that the web of the box girder bridge body can be supported.
Optionally, a through hole is formed in one side of the fixing seat, a mounting seat is fixedly connected to the bottom end of the supporting upright, and the mounting seat is fixedly connected with the bottom of the box girder bridge body and can fix the position of the supporting upright.
Optionally, the connecting member include inserted bar, stopper, screw thread and lock nut, the one end fixedly connected with stopper of inserted bar, the inserted bar keep away from the surface of stopper one end and seted up the screw thread, the surface threaded connection of screw thread have lock nut, the big or small looks adaptation of through-hole and inserted bar, the length of inserted bar be greater than two box girder bridge bodies on the maximum distance between two adjacent fixing bases, the diameter of stopper be greater than the diameter of inserted bar, through inserted bar, stopper and lock nut can be connected two adjacent fixing bases on two box girder bridge bodies.
The utility model has the advantages of it is following:
1. the prestressed ultrahigh-performance concrete continuous box girder bridge is characterized in that the cross support plate, the first support rod, the second support rod, the support stand column, the support top plate and the screw rod are arranged in a matched mode, the screw rod is rotated to enable the screw rod to move upwards on the support stand column, the support top plate is tightly attached to the cross support plate, the middle of the cross support plate is supported, the four corners of the cross support plate can be supported through the first support rod and the second support rod, the cross support plate is more stable in supporting, the supporting area of the box girder bridge body is increased through the cross support plate, the cross support plate can stably support the top of the box girder bridge body, the box girder bridge body can bear larger force, and the deformation of the box girder bridge body under the force is greatly reduced, The stability of the box girder bridge body is guaranteed under the condition of deformation such as torsion.
2. The prestressed ultra-high performance concrete continuous box girder bridge can support the second support rod through the matching arrangement of the support upright post, the second support rod, the connecting support rod and the support cross rod, so that the stability of the connecting support rod in the supporting process can be further ensured, the web plate of the box girder bridge body can be connected with the support upright post through the support cross rod, the two web plates of the box girder bridge body are supported, the stability of the two web plates of the box girder bridge body is ensured, the inserting rod is inserted into the through hole formed in the fixing seat through the matching arrangement of the inserting rod, the limiting block, the screw thread, the locking nut and the fixing seat, the limiting block is contacted with the fixing seat on one box girder bridge body, one end of the inserting rod, which is far away from the limiting block, can pass through the fixing seat on the other box girder bridge body, then through rotatory lock nut make its fixing base laminating on with the box girder bridge body inseparable to can be to two the fixing base on the box girder bridge body connect, thereby to two the box girder bridge body carry out the work of connecting, make a plurality of the box girder bridge body between connect inseparabler, further guaranteed this concrete continuous box girder bridge's structural stability, reached the better effect of quality that makes this concrete continuous box girder bridge.
Drawings
Fig. 1 is a schematic view of a first view structure of the present invention;
fig. 2 is a schematic view of a second perspective structure of the present invention;
fig. 3 is a schematic cross-sectional view taken along line a-a of fig. 2 according to the present invention;
FIG. 4 is a schematic structural view of a single box girder bridge body according to the present invention;
FIG. 5 is a schematic structural view of the connecting member of the present invention;
fig. 6 is a schematic structural diagram of the supporting structure of the present invention.
In the figure: 1-box girder bridge body, 2-cross support plate, 3-first support rod, 4-second support rod, 5-support structure, 501-support top plate, 502-screw rod, 6-fixing seat, 7-support upright post, 8-connecting component, 801-inserted rod, 802-limiting block, 803-thread, 804-locking nut, 9-first connecting steel plate, 10-second connecting steel plate, 11-connection support rod, 12-third connecting steel plate, 13-support cross rod, 14-fourth connecting steel plate, 15-through hole and 16-mounting seat.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1-6, a prestressed ultra-high performance concrete continuous box girder bridge comprises a box girder bridge body 1, a cross support plate 2 is arranged at the bottom of a top plate of the box girder bridge body 1, a first support rod 3 and a second support rod 4 are arranged on one side of the cross support plate 2, a support structure 5 is arranged in the middle of one side of the cross support plate 2, a fixed seat 6 and a support upright post 7 are arranged at the bottom of the box girder bridge body 1, and a connecting member 8 is arranged on one side of the fixed seat 6.
As an optional technical solution of the utility model: one side fixedly connected with first connecting steel plate 9 of cross backup pad 2, first connecting steel plate 9 passes through threaded rod and nut and 3 fixed connection of first bracing piece, the top fixedly connected with second connecting steel plate 10 of fixing base 6, the one end fixed connection that cross backup pad 2 was kept away from with first bracing piece 3 to second connecting steel plate 10 through threaded rod and nut, first connecting steel plate 9, the quantity of second connecting steel plate 10 and first bracing piece 3 is two, the distribution of two 3 symmetries of first bracing piece is in one side of cross backup pad 2, cross backup pad 2 and fixing base 6 have been connected through first bracing piece 3.
As an optional technical solution of the utility model: one end and the cross backup pad 2 fixed connection of second bracing piece 4, the one end and the support post 7 fixed connection of cross backup pad 2 are kept away from to second bracing piece 4, the slope of second bracing piece 4 sets up, the middle part fixedly connected with joint support pole 11 of 4 one sides of second bracing piece, the quantity of second bracing piece 4 is two, the distribution of two 4 symmetries of second bracing piece is in one side of cross backup pad 2, two first bracing pieces 13 and two second bracing pieces 4 distribute in the four corners department of cross backup pad 2.
As an optional technical solution of the utility model: the supporting structure 5 comprises a supporting top plate 501 and a screw rod 502, the supporting top plate 501 is in contact with the middle of the cross supporting plate 2, the supporting top plate 501 is far away from the screw rod 502 fixedly connected with one side of the cross supporting plate 2, the screw rod 502 is in threaded connection with the supporting upright post 7, and the supporting top plate 501 can ascend or descend by rotating the screw rod 502, so that the height of the supporting top plate 501 can be better adjusted, and the supporting top plate 501 is tightly attached to the cross supporting plate 2.
As an optional technical solution of the utility model: one side fixedly connected with third connecting steel plate 12 of support post 7, third connecting steel plate 12 passes through threaded rod and nut fixedly connected with support horizontal pole 13, the inside pre-buried fourth connecting steel plate 14 that has of web of box girder bridge body 1, threaded rod and nut and fourth connecting steel plate 14 fixed connection are passed through to the one end that support horizontal pole 13 kept away from support post 7, can be connected the web of box girder bridge body 1 with support post 17 through support horizontal pole 13, thereby can support the web of box girder bridge body 1.
As an optional technical solution of the utility model: through-hole 15 has been seted up to one side of fixing base 6, the bottom fixedly connected with mount pad 16 of support post 7, and mount pad 16 and the bottom fixed connection of box girder bridge body 1 can be fixed support post 7's position through mount pad 16.
As an optional technical solution of the utility model: the connecting component 8 comprises an inserting rod 801, a limiting block 802, threads 803 and a locking nut 804, one end of the inserting rod 801 is fixedly connected with the limiting block 802, the outer surface of the inserting rod 801, which is far away from one end of the limiting block 802, is provided with the threads 803, the outer surface of the threads 803 is in threaded connection with the locking nut 804, the through hole 15 is matched with the size of the inserting rod 801, the length of the inserting rod 801 is greater than the maximum distance between two adjacent fixing seats 6 on the two box girder bridge bodies 1, the diameter of the limiting block 802 is greater than that of the inserting rod 801, and the two adjacent fixing seats 6 on the two box girder bridge bodies 1 can be connected through the inserting rod 801, the limiting block 802 and the locking nut 804.
The working process of the utility model is as follows:
s1, firstly, connecting the fixed seat 6 with the box girder bridge body 1, and fixing the support upright post 7;
s2, rotating the screw 502 to enable the screw 502 to drive the supporting top plate 501 to ascend, and enabling the supporting top plate 501 to be tightly attached to the cross supporting plate 2;
s3, fixedly connecting one end of the first supporting rod 3 with the first connecting steel plate 9 through a threaded rod and a nut, and fixedly connecting the other end of the first supporting rod 3 with the second connecting steel plate 10 through the threaded rod and the nut;
s4, fixedly connecting one end of a second support rod 4 with the cross support plate 2, and fixedly connecting the other end of the second support rod 4 with the support upright 7;
s5, fixedly connecting one end of the supporting cross rod 13 with the fourth connecting steel plate 14 through a threaded rod and a nut, and fixedly connecting the other end of the supporting cross rod 13 with the third connecting steel plate 12 through a threaded rod and a nut;
s6, fixedly connecting one end of the connecting support rod 11 with the second support rod 4, and fixedly connecting the other end of the connecting support rod 11 with the support cross rod 13, thereby completing the support work of the single box girder bridge body 1;
s7, inserting the inserting rod 801 into the through hole 15 formed in the fixing seat 6 on one box girder bridge body 1, and allowing the other end of the inserting rod 801 to penetrate through the fixing seat 6 on the other box girder bridge body 1;
s8, rotating the locking nut 804 to enable the locking nut 804 to be tightly attached to the fixing seat 6 on the box girder bridge body 1, so that the connection tightness between two adjacent box girder bridge bodies 1 is enhanced, and repeating the upper step until the connection between all the box girder bridge bodies 1 is completed.
In summary, the following steps: the prestressed ultrahigh-performance concrete continuous box girder bridge is characterized in that the prestressed ultrahigh-performance concrete continuous box girder bridge is formed by a cross support plate 2, a first support rod 3, a second support rod 4, a support upright 7, a support top plate 501 and a screw 502 which are matched with each other are arranged, the screw 502 is rotated to move upwards on the support upright 7, the support top plate 501 is tightly attached to the cross support plate 2, the middle of the cross support plate 2 is supported, four corners of the cross support plate 2 can be supported by the first support rod 3 and the second support rod 4, the cross support plate 2 is more stable, the support area of a box girder bridge body 1 is increased by the cross support plate 2, the cross support plate 2 can stably support the top of the box girder bridge body 1, the box girder bridge body 1 can bear larger force, and the deformation of the box girder bridge body 1 caused by the force is greatly reduced, Under the condition of deformation such as torsion, the effect of ensuring the stability of the box girder bridge body 1 is achieved, the second support rod 4 can be supported by the connecting support rod 11 through the matching arrangement of the support upright post 7, the second support rod 4, the connecting support rod 11 and the support cross rod 11, so that the stability of the connecting support rod 4 in the supporting process can be further ensured, the web plate of the box girder bridge body 1 can be connected with the support upright post 7 through the support cross rod 11, two web plates of the box girder bridge body 1 are supported, the stability of the two web plates of the box girder bridge body 1 is ensured, and the inserting rod 801 is inserted into the through hole 15 formed in the fixing seat 6 through the matching arrangement of the inserting rod 801, the limiting block 802, the thread 803, the locking nut 804 and the fixing seat 6, so that the limiting block 802 is contacted with the fixing seat 6 on the box girder bridge body 1, the one end that the inserted bar 801 kept away from stopper 802 will pass fixing base 6 on another box girder bridge body 1, then make its fixing base 6 laminating on 1 with the box girder bridge body inseparable through rotatory lock nut 804, thereby can connect fixing base 6 on two box girder bridge bodies 1, thereby the work of connecting has been carried out to two box girder bridge bodies 1, make the connection between a plurality of box girder bridge body 1 inseparabler, further assurance this concrete continuous box girder bridge's structural stability, reached the better effect of quality that makes this concrete continuous box girder bridge.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The continuous prestressed ultrahigh-performance concrete box girder bridge is characterized in that: including box girder bridge body (1), the roof bottom of box girder bridge body (1) be provided with cross backup pad (2), one side of cross backup pad (2) be provided with first bracing piece (3) and second bracing piece (4), the middle part of cross backup pad (2) one side be provided with bearing structure (5), the bottom of box girder bridge body (1) be provided with fixing base (6) and support post (7), one side of fixing base (6) be provided with connecting elements (8).
2. The prestressed ultra-high performance concrete continuous box girder bridge according to claim 1, wherein: one side fixedly connected with first connecting steel plate (9) of cross backup pad (2), first connecting steel plate (9) pass through threaded rod and nut and first bracing piece (3) fixed connection, the top fixedly connected with second connecting steel plate (10) of fixing base (6), second connecting steel plate (10) pass through threaded rod and nut and first bracing piece (3) and keep away from the one end fixed connection of cross backup pad (2).
3. The prestressed ultra-high performance concrete continuous box girder bridge according to claim 1, wherein: one end and cross backup pad (2) fixed connection of second bracing piece (4), second bracing piece (4) keep away from the one end and the support post (7) fixed connection of cross backup pad (2), second bracing piece (4) slope set up, the middle part fixedly connected with joint support pole (11) of second bracing piece (4) one side.
4. The prestressed ultra-high performance concrete continuous box girder bridge according to claim 1, wherein: the supporting structure (5) comprises a supporting top plate (501) and a screw rod (502), the middle of the supporting top plate (501) is in contact with the middle of the cross supporting plate (2), one side, far away from the cross supporting plate (2), of the supporting top plate (501) is fixedly connected with the screw rod (502), and the screw rod (502) is in threaded connection with the supporting upright post (7).
5. The prestressed ultra-high performance concrete continuous box girder bridge according to claim 1, wherein: one side fixedly connected with third connecting steel plate (12) of support post (7), third connecting steel plate (12) support horizontal pole (13) through threaded rod and nut fixedly connected with, the web of box girder bridge body (1) inside pre-buried fourth connecting steel plate (14), support horizontal pole (13) keep away from the one end of support post (7) and pass through threaded rod and nut and fourth connecting steel plate (14) fixed connection.
6. The prestressed ultra-high performance concrete continuous box girder bridge according to claim 1, wherein: one side of the fixed seat (6) is provided with a through hole (15), and the bottom end of the supporting upright post (7) is fixedly connected with a mounting seat (16).
7. The prestressed ultra-high performance concrete continuous box girder bridge according to claim 1, wherein: the connecting component (8) comprises an inserting rod (801), a limiting block (802), threads (803) and a locking nut (804), wherein the limiting block (802) is fixedly connected to one end of the inserting rod (801), the threads (803) are formed in the outer surface of one end, away from the limiting block (802), of the inserting rod (801), and the locking nut (804) is connected to the outer surface of the threads (803) in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120757377.7U CN214783190U (en) | 2021-04-13 | 2021-04-13 | Prestressed ultrahigh-performance concrete continuous box girder bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120757377.7U CN214783190U (en) | 2021-04-13 | 2021-04-13 | Prestressed ultrahigh-performance concrete continuous box girder bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214783190U true CN214783190U (en) | 2021-11-19 |
Family
ID=78671057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120757377.7U Expired - Fee Related CN214783190U (en) | 2021-04-13 | 2021-04-13 | Prestressed ultrahigh-performance concrete continuous box girder bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214783190U (en) |
-
2021
- 2021-04-13 CN CN202120757377.7U patent/CN214783190U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |