CN210797308U - Bridge hollow slab bottom transverse reinforcing device - Google Patents
Bridge hollow slab bottom transverse reinforcing device Download PDFInfo
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- CN210797308U CN210797308U CN201920670914.7U CN201920670914U CN210797308U CN 210797308 U CN210797308 U CN 210797308U CN 201920670914 U CN201920670914 U CN 201920670914U CN 210797308 U CN210797308 U CN 210797308U
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Abstract
The utility model discloses a horizontal reinforcing apparatus at bottom of hollow slab of bridge, including H shaped steel, the both sides of H shaped steel all are fixed with respectively compresses tightly the piece that compresses tightly assembling hollow slab both sides terminal surface of bridge, and the both sides end of H shaped steel all is provided with the steel wire stay cord, and the both sides end at H shaped steel is fixed respectively to the one end of two steel wire stay cords, and the other end of two steel wire stay cords is fixed respectively on the both sides guardrail of bridge. The utility model discloses structural design is ingenious, reasonable, utilizes each hollow slab to assemble into bridge slab and transversely consolidates together to can avoid the bridge fracture, be convenient for maintain, advantage with low costs, be worth popularizing and applying.
Description
Technical Field
The utility model relates to a device, especially a horizontal reinforcing apparatus at bottom of bridge hollow slab.
Background
The existing assembled hollow bridge slab is prefabricated and molded, and then the prefabricated hollow bridge slab is installed on a bridge pier by using a crane, and in the mode, because the connecting hinge joints between prefabricated slabs are weak, the prefabricated hollow bridge slab is easy to crack in the operation process, is one of common defects of the bridge, has long maintenance period and high cost, and is not beneficial to the safe operation of traffic.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve above-mentioned prior art's shortcoming, provide one kind and can utilize the rigidity of shaped steel to strengthen the horizontal contact of hollow slab roof beam to difficult fracture, maintenance cycle are short, construction convenience, fast, the bridge that the durability is good horizontal reinforcing apparatus at the bottom of the hollow slab between each prefabricated slab (being hollow slab), satisfied the demand fast, with low costs among the bridge maintenance reinforcement.
The utility model provides a technical scheme that its technical problem adopted: the transverse reinforcing device comprises H-shaped steel, wherein two sides of the H-shaped steel are respectively fixed with a pressing piece which is respectively pressed on two side end faces of the assembled hollow bridge slab, two side ends of the H-shaped steel are respectively provided with a steel wire pull rope, one end of each steel wire pull rope is respectively fixed on two side ends of the H-shaped steel, and the other end of each steel wire pull rope is respectively fixed on two side guardrails of the bridge. The H-shaped steel has the effects that the transverse connection between the hollow slabs of the bridges can be strengthened and supported, so that the condition that the hollow slabs assembled together are easy to crack is avoided; the compression piece has the function that the bridge hollow plates which are transversely assembled together are transversely compressed together under the action of transverse support of the H-shaped steel, so that the condition that gaps among the bridge hollow plates which are transversely assembled together are easy to crack is avoided; the steel wire pull rope plays a role in supporting the falling of the H-shaped steel.
Further perfect, compress tightly the piece including fixing the first angle steel on H shaped steel, be fixed with first strengthening rib on the first angle steel, the lateral part of first angle steel is equipped with fixes the first steel sheet on assembling bridge cored slab side, has placed the wedge between first steel sheet and the first angle steel. The first angle steel, the first reinforcing rib, the first steel plate and the wedge-shaped block play a role in transversely pressing the assembled bridge hollow plates.
Further perfect, compress tightly the piece including fixing the second angle steel on H shaped steel, be fixed with the second strengthening rib on the second angle steel, the lateral part of second angle steel is equipped with the second steel sheet of fixing on assembling bridge cored slab side, has all placed on the medial surface of second steel sheet and on the lateral surface of second angle steel and has pressed the steel sheet, and two are pressed and are installed compression spring between the steel sheet. The second angle steel, the second reinforcing rib, the second steel plate, the pressing steel plate and the compression spring have the functions of keeping constant pre-pressure in the construction process to press the assembled bridge hollow plates tightly.
Further perfection, and the two side surfaces of the middle position of the H-shaped steel are fixedly welded with the reinforced steel plates. The reinforcing steel plate has the function of reinforcing the longitudinal bending stress of the H-shaped steel, so that the longitudinal compression resistance of the assembled bridge plate is improved.
Further perfect, the top of H shaped steel is equipped with a set of roof that sets up along H shaped steel length direction, and the width of roof is unanimous with the width of hollow slab, all threaded connection has the bolt on each H shaped steel, and each bolt pushes up respectively that each roof presses on the hollow slab bottom surface that each roof corresponds, and each bolt welded fastening is on H shaped steel. Here the effect of bolt, roof is, because the difference in height diverse between the bottom surface of each bridge hollow slab and the H shaped steel top surface, can make each hollow slab and the installation of reinforcing shaped steel not closely paste, the tradition uses the mortar to joint a crack can reduce the reinforcement effect, thereby the utility model discloses utilize roof and bolt to make the deformation atress of each hollow slab all act on H shaped steel for H shaped steel plays vertical supporting role to each hollow slab, avoids each hollow slab atress deflection to differ, and causes the condition of gap fracture to take place between each hollow slab.
The utility model discloses profitable effect is: the utility model has the advantages of ingenious design, it is reasonable, utilize H shaped steel to carry out the transverse rigidity to the hollow slab that assembles together and strengthen compressing tightly the coaction, utilize to compress tightly the piece and exert horizontal prestressing force effect with H shaped steel, thereby transversely compress tightly the bridge slab together transversely assembling, utilize the steel wire stay cord to hoist the supporting role to H shaped steel, thereby can utilize the rigidity of shaped steel to strengthen the transverse connection of hollow slab roof beam, thereby be difficult for the fracture between each prefabricated plate, maintenance cycle is short, construction convenience, and high speed, the durability is good, be worth popularizing and applying.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of the area A of FIG. 1;
FIG. 4 is a partial enlarged view of the area B of FIG. 2;
fig. 5 is a first flow chart of the installation principle of the first solution of the present invention;
fig. 6 is a second schematic diagram of the installation principle of the second embodiment of the present invention.
Description of reference numerals: the steel plate comprises, by weight, 1 part of H-shaped steel, 1 part of a reinforcing steel plate, 1 part of a pressing piece 2, 2 parts of first angle steel, 2 parts of a first reinforcing rib 2, 2 parts of a first steel plate, 2 parts of a wedge- shaped block 2, 2 parts of second angle steel, 2 parts of a second reinforcing rib 6, 2 parts of a second steel plate 2, 7 parts of a pressing steel plate 2, 8 parts of a compression spring 2, 9 parts of a steel wire pull rope 3, a top plate 4, a bolt 5, a hollow plate 6, 6 parts of a guardrail 6, 7 parts of a cement pavement 7, a flat hydraulic jack 8 and a connecting rod 9.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
with reference to figures 1, 3, 5: the transverse reinforcing device for the bottom of the hollow slab of the bridge comprises H-shaped steel 1, wherein two sides of the H-shaped steel 1 are respectively and fixedly provided with a pressing piece 2 which is respectively pressed on two side end faces of the hollow slab of the bridge to be assembled, two side ends of the H-shaped steel 1 are respectively provided with a steel wire pull rope 3, one end of each steel wire pull rope 3 is respectively fixed at two side ends of the H-shaped steel 1, and the other end of each steel wire pull rope 3 is respectively fixed on two side guardrails of the bridge.
The pressing piece 2 comprises first angle steel 2-1 fixed on the H-shaped steel 1, a first reinforcing rib 2-2 is fixed on the first angle steel 2-1, a first steel plate 2-3 fixed on the side face of the assembled bridge hollow plate is arranged on the side portion of the first angle steel 2-1, and a wedge block 2-4 is placed between the first steel plate 2-3 and the first angle steel 2-1.
And reinforcing steel plates 1-1 are welded and fixed on two side surfaces of the middle position of the H-shaped steel 1.
A group of top plates 4 arranged along the length direction of the H-shaped steel 1 are arranged above the H-shaped steel 1, the width of each top plate 4 is consistent with that of the hollow slab, bolts 5 are connected to the H-shaped steel 1 in a threaded mode, each bolt 5 pushes the top plates 4 to press the bottom surfaces of the hollow slabs corresponding to the top plates 4 respectively, and each bolt 5 is welded and fixed to the H-shaped steel 1.
The utility model discloses a theory of operation: firstly, small hollow plates are placed on a pier and are assembled into a large bridge plate one by one, then H-shaped steel 1 is placed below the large bridge plate, then one end of a steel wire rope 3 is fixed on a guardrail 6-1, the other end of the steel wire rope is fixed on the H-shaped steel 1, so that the H-shaped steel 1 is longitudinally dropped and fixed, then one end of a horizontal hydraulic jack 8 is abutted against the side edge of the large bridge plate, and a piston rod is utilized to press against a first angle steel 2-1, so that the small hollow plates 6 are mutually closed and tightly pressed, then wedge-shaped blocks 2-4 with corresponding widths are placed between the first angle steel 2-1 and the first steel plate 2-3, then the piston rod of the horizontal hydraulic jack 8 is retracted and taken out (as shown in figure 5), then, bolts 5 are screwed, top plates 4 are respectively pressed and pressed on the bottom surfaces of the hollow plates 6 with different bottom surface height differences, finally, all the bolts 5 are welded on the H-shaped steel 1 respectively, and then all the hollow plates 6 are compressed and spliced into a bridge slab, so that the hollow plates 6 are not easy to crack, the maintenance period is short, the construction is convenient, the speed is high, the durability is good, and the method is worthy of popularization and application.
With reference to figures 2, 4, 6: the transverse reinforcing device for the bottom of the hollow slab of the bridge comprises H-shaped steel 1, wherein two sides of the H-shaped steel 1 are respectively and fixedly provided with a pressing piece 2 which is respectively pressed on two side end faces of the hollow slab of the bridge to be assembled, two side ends of the H-shaped steel 1 are respectively provided with a steel wire pull rope 3, one end of each steel wire pull rope 3 is respectively fixed at two side ends of the H-shaped steel 1, and the other end of each steel wire pull rope 3 is respectively fixed on two side guardrails of the bridge.
The pressing piece 2 comprises second angle steels 2-5 fixed on the H-shaped steel 1, second reinforcing ribs 2-6 are fixed on the second angle steels 2-5, second steel plates 2-7 fixed on the side faces of the assembled bridge hollow plates are arranged on the side portions of the second angle steels 2-5, pressing steel plates 2-8 are placed on the inner side faces of the second steel plates 2-7 and the outer side faces of the second angle steels 2-5, and compression springs 2-9 are installed between the two pressing steel plates 2-8.
And reinforcing steel plates 1-1 are welded and fixed on two side surfaces of the middle position of the H-shaped steel 1.
A group of top plates 4 arranged along the length direction of the H-shaped steel 1 are arranged above the H-shaped steel 1, the width of each top plate 4 is consistent with that of the hollow slab, bolts 5 are connected to the H-shaped steel 1 in a threaded mode, each bolt 5 pushes the top plates 4 to press the bottom surfaces of the hollow slabs corresponding to the top plates 4 respectively, and each bolt 5 is welded and fixed to the H-shaped steel 1.
The utility model discloses a theory of operation: the second embodiment is basically the same as the first embodiment in operation principle, the only difference is that the pressing member 2 transversely presses the hollow plates 6 together, and the operation principle of the pressing member 2 in the second embodiment is as follows: firstly, two pressing steel plates 2-8 are placed at a hydraulic pressing table (not shown in the figure), then compression springs 2-9 are placed between the two pressing steel plates 2-8, the hydraulic pressing table is used for pressing the two pressing steel plates 2-8 to move close to each other, when the two pressing steel plates 2-8 move close to each other, the compression springs 2-9 are driven to compress and store energy, when the compression springs 2-9 are compressed to a certain amount (namely, the compressed energy storage reaches certain energy), the mutual closing pressing between the two pressing steel plates 2-8 is stopped, then a fixed connecting rod 9 is welded between the two pressing steel plates 2-8, so that when the hydraulic pressing table releases the pressing of the two pressing steel plates 2-8, the two pressing steel plates 2-8 cannot be bounced away by the compression springs 2-9, and then, the hydraulic pressing table releases the pressing of the two pressing steel plates 2-8, then the two pressing steel plates 2-8 with the connecting rods 9 and the compression springs 2-9 are placed between the second angle steels 2-5 and the second steel plates 2-7, and the cutting device is used for cutting off the connecting rods 9, so that the compression springs 2-9 in a pressed state are enabled to press the pressing steel plates 2-8 on one side against the second steel plates 2-7 with high elasticity, and the hollow plates 6 are transversely pressed and fixed together (as shown in fig. 6).
While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.
Claims (5)
1. The utility model provides a horizontal reinforcing apparatus at bottom of bridge hollow slab, includes H shaped steel (1), characterized by: the two sides of the H-shaped steel (1) are respectively fixed with a pressing piece (2) which is respectively pressed on the end faces of the two sides of the assembled bridge hollow slab, the two side ends of the H-shaped steel (1) are respectively provided with a steel wire pull rope (3), two ends of the two sides of the H-shaped steel (1) are respectively fixed with one end of the steel wire pull rope (3), and two ends of the other end of the steel wire pull rope (3) are respectively fixed on guardrails on the two sides of the bridge.
2. The transverse reinforcing device for the bottom of the bridge hollow slab as claimed in claim 1, which is characterized in that: the pressing piece (2) comprises first angle steel (2-1) fixed on H-shaped steel (1), first reinforcing ribs (2-2) are fixed on the first angle steel (2-1), first steel plates (2-3) fixed on the side faces of the assembled bridge hollow plates are arranged on the side portions of the first angle steel (2-1), and wedge blocks (2-4) are placed between the first steel plates (2-3) and the first angle steel (2-1).
3. The transverse reinforcing device for the bottom of the bridge hollow slab as claimed in claim 1, which is characterized in that: the pressing piece (2) comprises second angle steel (2-5) fixed on the H-shaped steel (1), second reinforcing ribs (2-6) are fixed on the second angle steel (2-5), second steel plates (2-7) fixed on the side faces of the assembled bridge hollow plates are arranged on the side portions of the second angle steel (2-5), pressing steel plates (2-8) are placed on the inner side faces of the second steel plates (2-7) and the outer side faces of the second angle steel (2-5), and compression springs (2-9) are installed between the pressing steel plates (2-8).
4. The transverse reinforcing device for the bottom of the bridge hollow slab as claimed in claim 1, which is characterized in that: and reinforcing steel plates (1-1) are welded and fixed on two side surfaces of the middle position of the H-shaped steel (1).
5. The transverse reinforcing device for the bottom of the bridge hollow slab as claimed in claim 1, which is characterized in that: a group of top plates (4) arranged along the length direction of the H-shaped steel (1) are arranged above the H-shaped steel (1), the width of each top plate (4) is consistent with the width of the hollow plate, bolts (5) are in threaded connection with the H-shaped steel (1), each bolt (5) pushes the top plate (4) to press the bottom surface of the hollow plate corresponding to each top plate (4), and each bolt (5) is welded and fixed on the H-shaped steel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920670914.7U CN210797308U (en) | 2019-05-10 | 2019-05-10 | Bridge hollow slab bottom transverse reinforcing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920670914.7U CN210797308U (en) | 2019-05-10 | 2019-05-10 | Bridge hollow slab bottom transverse reinforcing device |
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| Publication Number | Publication Date |
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| CN210797308U true CN210797308U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920670914.7U Active CN210797308U (en) | 2019-05-10 | 2019-05-10 | Bridge hollow slab bottom transverse reinforcing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813800A (en) * | 2021-03-09 | 2021-05-18 | 上海市城市建设设计研究总院（集团）有限公司 | Replacement connecting structure of integral anti-collision wall with side plates of elevated road and construction method of replacement connecting structure |
-
2019
- 2019-05-10 CN CN201920670914.7U patent/CN210797308U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813800A (en) * | 2021-03-09 | 2021-05-18 | 上海市城市建设设计研究总院（集团）有限公司 | Replacement connecting structure of integral anti-collision wall with side plates of elevated road and construction method of replacement connecting structure |
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