CN215051980U - Horizontal non-wet box girder body - Google Patents
Horizontal non-wet box girder body Download PDFInfo
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- CN215051980U CN215051980U CN202121597442.0U CN202121597442U CN215051980U CN 215051980 U CN215051980 U CN 215051980U CN 202121597442 U CN202121597442 U CN 202121597442U CN 215051980 U CN215051980 U CN 215051980U
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Abstract
The utility model relates to a bridge building field discloses a horizontal nothing wet joint case roof beam body, including a plurality of prefabricated letter little case roof beams and a plurality of horizontal prestressing tendons, the internal a plurality of horizontal prestressing force pore canals that are provided with of roof beam of prefabricated letter little case roof beam, a plurality of horizontal prestressing tendons pass a plurality of horizontal prestressing force pore canals and both ends are fixed with the ground tackle, prefabricated letter little case roof beam is including setting up the boundary beam in both sides and setting up the well roof beam at the middle part, the boundary beam inboard is provided with tongue-and-groove formula cross slab, well roof beam both sides are provided with tongue-and-groove formula cross slab, the flange board and the web of prefabricated letter little case roof beam all with tongue-and-groove formula cross slab fixed connection, two adjacent prefabricated letter little case roof beams are through tongue-and-groove formula cross slab mutually supporting locking. The utility model discloses a horizontal no wet case roof beam body range of application that connects is wide, and most process is accomplished at precast beam field, realizes prefabricated degree maximize, and the site operation does not have steel bar welding and concreting, and intensity of labour is little, and construction cycle is short.
Description
Technical Field
The utility model relates to a bridge building field especially relates to a horizontal no wet case roof beam body that connects.
Background
The method is characterized in that prefabricated simply-supported small box girders are commonly adopted in a girder body of a conventional span bridge of a highway and a municipal road, a plurality of pieces of prefabricated simply-supported small box girders are generally transversely arranged every span, in order to enable the small box girders to be stressed in a coordinated manner and improve the integrity among the small box girders, the traditional construction process is that the small box girders are prefabricated in a prefabricated field, the prefabricated small box girders are hoisted in a construction site, transverse connecting reinforcing steel bars of flange plates and transverse partition plates between adjacent small box girders are welded, wet-joint concrete among the flange plates is poured, and bridge deck pavement construction is finally carried out.
Although the conventional design scheme and the construction process can effectively solve the problem of integral stress of the transverse simply-supported small box girders, a large amount of welded steel bars and poured concrete are needed on site. The labor intensity is high, the danger of high-altitude operation is high, the environmental pollution is serious, the time consumption of the whole process flow is long, and the time consumption is generally more than 10-15 days in consideration of the factors such as the curing age of the wet joint concrete. The urban traffic system has great social influence on the urban traffic needing rapid construction and rapid traffic recovery, and needs to be improved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a horizontal no wet case roof beam body that connects to it is big to solve above-mentioned prior art process flow site operation intensity of labour, and environmental pollution is serious and the problem of consuming time for a long time.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a horizontal nothing wet joint case roof beam body, including a plurality of prefabricated letter little case roof beams and a plurality of horizontal prestressing tendons, prefabricated letter little case roof beam internal a plurality of horizontal prestressing force pore canals that are provided with, a plurality of horizontal prestressing tendons passes a plurality of horizontal prestressing force pore canal and both ends are fixed with the ground tackle, prefabricated letter little case roof beam including setting up the boundary beam in both sides and setting up the well roof beam at the middle part, the boundary beam inboard is provided with the tongue-and-groove formula cross slab, well roof beam both sides are provided with tongue-and-groove formula cross slab, prefabricated letter little case roof beam flange board and web all with tongue-and-groove formula cross slab fixed connection, adjacent two prefabricated letter little case roof beam passes through the locking of tongue-and-groove formula cross slab mutually supports.
Furthermore, the transverse prestressed pore channels comprise first prestressed pore channels which are arranged in the flange plates and the top plates of the prefabricated simply-supported small box girders in a penetrating mode and second prestressed pore channels which are arranged in the bottom plates and the tongue-and-groove type transverse partition plates of the prefabricated simply-supported small box girders in a penetrating mode.
Furthermore, the box girder structure further comprises a lower indoor transverse clapboard which is integrated with the box girder body bottom plate, the transverse prestress pore channel further comprises a third prestress pore channel, and the third prestress pore channel is transversely arranged in the lower indoor transverse clapboard, the prefabricated simply-supported small box girder web plate and the rabbet type transverse clapboard in a penetrating mode.
Furthermore, transverse partition plate limiting structures are arranged on the side edges of two adjacent tongue-and-groove transverse partition plates, and the two adjacent tongue-and-groove transverse partition plates are matched and locked with each other through the transverse partition plate limiting structures.
Furthermore, two adjacent diaphragm limiting structures are respectively a first conical protrusion and a first conical groove, the first conical protrusion and the first conical groove are respectively arranged on two adjacent tongue-and-groove type diaphragms, and the first conical protrusion can be embedded in the first conical groove.
Furthermore, the number of the transverse partition plate limiting structures is at least one, and a first conical protrusion and a first conical groove between every two adjacent tongue-and-groove transverse partition plates are correspondingly arranged.
Furthermore, an edge plate limiting structure is integrally arranged on the edge of the inner side of the edge plate of the edge beam, edge plate limiting structures are integrally arranged on the edges of the two sides of the edge plate of the middle beam, and the adjacent two edge plates of the prefabricated simply-supported small box beam are mutually matched and locked through the edge plate limiting structures.
Furthermore, the two adjacent prefabricated simply-supported small box girders have the flange plate limiting structures which are respectively a second conical protrusion and a second conical groove, the second conical protrusion and the second conical groove are respectively arranged on the two adjacent prefabricated simply-supported small box girders, and the second conical protrusion can be embedded in the second conical groove.
Furthermore, the number of the second conical protrusions and the second conical grooves is at least one, and the second conical protrusions and the second conical grooves between the beams of the adjacent prefabricated simply-supported small box girders are correspondingly arranged.
Furthermore, longitudinal prestressed tendons are longitudinally arranged in a bottom plate and a web plate of the box girder body in a penetrating mode, the transverse prestressed tendons are unbonded prestressed tendons, and the anchorage device is an unbonded prestressed anchorage device.
The utility model discloses a following technological effect:
(1) the scheme is suitable for the design and construction of highway bridges, railway bridges and urban road and bridge girders, and has wide application range;
(2) most procedures can be completed in a precast beam field by the scheme so as to realize the maximization of the prefabrication degree, the whole course of field construction has no welding and no cast-in-place concrete wet operation, the field labor intensity is low, almost no environmental pollution is caused, and the construction period is short.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic structural view of a transverse non-wet-joint box girder body of the present invention;
FIG. 2 is a left side view of a cross-section of the transverse wet-joint-free box girder body shown in FIG. 1 taken along line A-A;
FIG. 3 is a top view of the horizontal non-wet-joint box girder of the present invention;
FIG. 4 is a front view of a prefabricated simply supported box girder;
fig. 5 is a top view of a prefabricated simply supported mini-box girder.
The structure comprises a transverse prestressed duct 1, a transverse prestressed tendon 2, a diaphragm plate 3, a diaphragm plate limiting structure 4, a flange plate limiting structure 5, a longitudinal prestressed tendon 6, an anchorage device 7, a first prestressed duct 11, a second prestressed duct 12, a third prestressed duct 13, a tongue-and-groove diaphragm plate 31, a lower indoor diaphragm plate 32, a first conical protrusion 41, a first conical groove 42, a second conical protrusion 51 and a second conical groove 52.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 5, the utility model provides a horizontal no wet joint box girder body, including a plurality of prefabricated simple little case roof beams and a plurality of horizontal prestressing tendons 2, the internal a plurality of horizontal prestressing force pore ways 1 that is provided with of roof beam of prefabricated simple little case roof beam, horizontal prestressing force pore way 1 adopts the mode of prefabricated bellows in the concrete, a plurality of horizontal prestressing tendons 2 pass a plurality of horizontal prestressing force pore ways 1 and both ends are fixed with ground tackle 7, prefabricated simple little case roof beam still includes cross slab 3, cross slab 3 is provided with tongue-and-groove formula cross slab 31 including prefabricated simple little case roof beam one side at least, the flange board and the web of the roof beam body all with tongue-and-groove formula cross slab 31 fixed connection, when the prefabricating of little case roof beam is carried out in the precast yard, tongue-and-groove formula cross slab 31 together prefabricates with the roof beam body of prefabricated simple little case roof beam. Specifically, the beam of the bridge is horizontal and comprises a middle beam and side beams, wherein the two sides of the middle beam are respectively provided with a tongue-and-groove type transverse partition plate 31, only the inner side of each side beam is provided with the tongue-and-groove type transverse partition plate 31, the adjacent prefabricated simply-supported small box beams are mutually matched and locked through the tongue-and-groove type transverse partition plates 31, the plurality of prefabricated simply-supported small box beams are combined into a whole through the transverse prestressed ribs 2, no wet joint exists in the middle, and the beam body can be cooperatively deformed and loaded.
The construction process of the scheme is as follows: firstly, prefabricating a simply supported small box girder in a prefabricated field, hoisting and splicing the prefabricated small box girder and penetrating a transverse prestressed tendon 2, then tensioning the transverse prestressed tendon 2 and fixing the transverse prestressed tendon 2 by using an anchorage 7, and finally performing bridge deck construction operation.
The structure avoids the field construction processes of welding transverse connecting steel bars, pouring transverse wet joint concrete and the like on the spot after the conventional prefabricated simply-supported small box girder is hoisted; the small box girder is completely prefabricated, and the whole process has no wet connection operation, so that the field operation strength is greatly reduced, the field construction speed is improved, and the environmental pollution and traffic interference are reduced. The technology is suitable for the field of newly-built and modified bridge engineering such as highways, railways and urban roads, and on the premise of ensuring the integrity and stress requirements of the prefabricated simply-supported small box girder, field wet operation is omitted.
In a further optimized scheme, the transverse prestressed pore channels 1 comprise first prestressed pore channels 11 penetrating through the flange plates and the top plates of the box girder body and second prestressed pore channels 12 penetrating through the bottom plates and the tongue-and-groove type transverse partition plates 31 of the prefabricated simply-supported small box girders. The transverse prestressed tendons 2 penetrate through the first prestressed duct 11 and the second prestressed duct 12, so that a plurality of prefabricated simply-supported small box girders form a whole, transverse pressure is mainly applied to the girder body, and transverse shear tensile stress does not occur to concrete under the action of torsional force of the girder body.
Further optimizing the scheme, in order to make the roof beam body more firm, the diaphragm plate 3 still includes the lower indoor diaphragm plate 32 that sets up with case roof beam body bottom plate an organic whole, when carrying out the prefabricated little case roof beam of prefabricated field with lower indoor diaphragm plate 32 together prefabricated with the roof beam body of prefabricated simple-supported little case roof beam, horizontal prestressing duct 1 still includes third prestressing duct 13, lower indoor diaphragm plate 32, case roof beam body web and tongue-and-groove type diaphragm plate 31 transversely wear to be equipped with third prestressing duct 13, horizontal prestressing tendons 2 passes third prestressing duct 13 and is fixed with ground tackle 7.
According to the further optimized scheme, the transverse partition plate limiting structures 4 are arranged on the side edges of the two adjacent tongue-and-groove type transverse partition plates 31, and the two adjacent tongue-and-groove type transverse partition plates 31 are matched and locked with each other through the transverse partition plate limiting structures 4, so that on one hand, the box girders can be combined more tightly to achieve the transverse positioning effect, on the other hand, the vertical positioning effect can be achieved, and the non-uniform settlement of the prefabricated simply-supported small box girders is further prevented.
In a further optimized scheme, two adjacent diaphragm limiting structures 4 are respectively a first conical protrusion 41 and a first conical groove 42, the first conical protrusion 41 and the first conical groove 42 are respectively arranged on two adjacent tongue-and-groove type diaphragms 31, that is, one diaphragm limiting structure 4 is the first conical protrusion 41, the other diaphragm limiting structure 4 is the first conical groove 42, and the first conical protrusion 41 can be embedded in the first conical groove 42.
In a further optimized scheme, the number of the first conical protrusions 41 and the first conical grooves 42 is at least one, and the first conical protrusions 41 and the first conical grooves 42 are correspondingly arranged between beam bodies of two adjacent prefabricated simply-supported small box beams.
According to the further optimization scheme, the flange plate limiting structures 5 are integrally arranged on the inner side edges of the flange plates of the edge beams, the flange plate limiting structures 5 are integrally arranged on the edges of two sides of the middle beam, the flange plates of two adjacent prefabricated simply-supported small box beams are mutually matched and locked through the flange plate limiting structures 5, as the positions of transverse prestress pore ways 1 in the beam bodies of the prefabricated simply-supported small box beams are fixed, accurate precision is needed in the beam body hoisting process, the flange plate limiting structures 5 are arranged to guide the precision in the hoisting process, the same prestress pore ways of the prefabricated simply-supported small box beams are located on the same axis, and in addition, the longitudinal displacement of the prefabricated simply-supported small box beams can be limited.
According to the further optimization scheme, the flange plate limiting structures 5 of two adjacent prefabricated simply-supported small box girders are respectively a second conical protrusion 51 and a second conical groove 52, the second conical protrusion 51 and the second conical groove 52 are respectively arranged on the flange plates of the two adjacent prefabricated simply-supported small box girders, namely, one flange plate limiting structure 5 is the second conical protrusion 51, the other flange plate limiting structure 5 is the second conical groove 52, and the second conical protrusion 51 can be embedded in the second conical groove 52.
In a further optimized scheme, the number of the second conical protrusions 51 and the second conical grooves 52 is at least one, and the second conical protrusions 51 and the second conical grooves 52 between the beams of the adjacent prefabricated simply-supported small box girders are correspondingly arranged.
Further optimizing the scheme, in order to improve the bending resistance of the beam body, longitudinal prestressed tendons 6 penetrate through the bottom plate and the web plate of the beam body longitudinally; the structure adopts post-tensioning construction technology, the transverse prestressed tendons are unbonded transverse prestressed tendons, the anchorage device is an unbonded prestressed anchorage device, the unbonded prestressed tendons are coated with anti-corrosion grease, and the PE sheath is wrapped outside the unbonded prestressed tendons, so that the structure has the characteristic of strong anti-corrosion capability.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (10)
1. The utility model provides a horizontal no wet case roof beam body that connects which characterized in that: the prefabricated simply-supported small box girder comprises a plurality of prefabricated simply-supported small box girders and a plurality of transverse prestressed tendons (2), wherein a plurality of transverse prestressed pore channels (1) are arranged in a girder body of the prefabricated simply-supported small box girder, the transverse prestressed tendons (2) penetrate through the plurality of transverse prestressed pore channels (1) and two ends of the transverse prestressed pore channels are fixed through anchors (7), the prefabricated simply-supported small box girder comprises edge girders arranged on two sides and middle girders arranged in the middle, tongue-and-groove type transverse partition plates (31) are arranged on the inner sides of the edge girders, tongue-and-groove type transverse partition plates (31) are arranged on two sides of the middle girders, flange plates and web plates of the prefabricated simply-supported small box girder are fixedly connected with the tongue-and-groove type transverse partition plates (31), and the prefabricated simply-supported small box girder is matched and locked through the tongue-and groove type transverse partition plates (31).
2. The transverse wet-joint-free box beam body according to claim 1, wherein: the transverse prestressed pore channels (1) comprise first prestressed pore channels (11) arranged in the flange plates and the top plates of the prefabricated simply-supported small box girders and second prestressed pore channels (12) arranged in the bottom plates and the tongue-and-groove type transverse partition plates (31) of the prefabricated simply-supported small box girders in a penetrating mode.
3. The transverse wet-joint-free box beam body according to claim 2, wherein: the box girder structure is characterized by further comprising a lower indoor diaphragm plate (32) integrally arranged with the bottom plate of the box girder body, wherein the transverse prestressed duct (1) further comprises a third prestressed duct (13), and the third prestressed duct (13) is transversely arranged in the lower indoor diaphragm plate (32), the prefabricated simply-supported small box girder web plate and the rabbet type diaphragm plate (31) in a penetrating mode.
4. The transverse wet-joint-free box beam body according to claim 1, wherein: and transverse partition plate limiting structures (4) are arranged on the side edges of the two adjacent tongue-and-groove transverse partition plates (31), and the two adjacent tongue-and-groove transverse partition plates (31) are matched and locked with each other through the transverse partition plate limiting structures (4).
5. The transverse wet-joint-free box beam body according to claim 4, wherein: two adjacent diaphragm limit structure (4) are first toper arch (41) and first toper recess (42) respectively, first toper arch (41) with first toper recess (42) set up respectively adjacent two on tongue-and-groove formula diaphragm (31), first toper arch (41) can inlay and establish in first toper recess (42).
6. The transverse wet-joint-free box beam body according to claim 5, wherein: the number of the transverse partition plate limiting structures (4) is at least one, and a first conical protrusion (41) and a first conical groove (42) between every two adjacent tongue-and-groove transverse partition plates (31) are correspondingly arranged.
7. The transverse wet-joint-free box beam body according to claim 1, wherein: the flange plate limiting structure is characterized in that a flange plate limiting structure (5) is integrally arranged on the inner side edge of the flange plate of the edge beam, flange plate limiting structures (5) are integrally arranged on the edges of the two sides of the flange plate of the middle beam, and the flange plates of the prefabricated simply-supported small box beams are mutually matched and locked through the flange plate limiting structures (5).
8. The transverse wet-joint-free box beam body according to claim 7, wherein: two adjacent prefabricated simple-supported little case roof beam flange board limit structure (5) are second toper arch (51) and second toper recess (52) respectively, second toper arch (51) with second toper recess (52) set up respectively adjacent two on the flange board of prefabricated simple-supported little case roof beam, second toper arch (51) can inlay and establish in second toper recess (52).
9. The transverse wet-joint-free box beam body according to claim 8, wherein: the number of the second conical protrusions (51) and the second conical grooves (52) is at least one, and the second conical protrusions (51) and the second conical grooves (52) between the beams of the adjacent prefabricated simply-supported small box girders are correspondingly arranged.
10. The transverse wet-joint-free box girder according to any one of claims 1 to 9, wherein: longitudinal prestressed tendons (6) are longitudinally arranged in a bottom plate and a web plate of the box girder body in a penetrating mode, the transverse prestressed tendons (2) are unbonded prestressed tendons, and the anchorage device (7) is an unbonded prestressed anchorage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121597442.0U CN215051980U (en) | 2021-07-14 | 2021-07-14 | Horizontal non-wet box girder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121597442.0U CN215051980U (en) | 2021-07-14 | 2021-07-14 | Horizontal non-wet box girder body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215051980U true CN215051980U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121597442.0U Active CN215051980U (en) | 2021-07-14 | 2021-07-14 | Horizontal non-wet box girder body |
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| Country | Link |
|---|---|
| CN (1) | CN215051980U (en) |
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2021
- 2021-07-14 CN CN202121597442.0U patent/CN215051980U/en active Active
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