CN211596422U - Assembled ultra-high performance concrete beam - Google Patents
Assembled ultra-high performance concrete beam Download PDFInfo
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- CN211596422U CN211596422U CN201922119681.4U CN201922119681U CN211596422U CN 211596422 U CN211596422 U CN 211596422U CN 201922119681 U CN201922119681 U CN 201922119681U CN 211596422 U CN211596422 U CN 211596422U
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Abstract
The embodiment of the utility model provides a fabricated ultra high performance concrete beam is related to. The fabricated ultra-high performance concrete beam comprises a bottom plate and a truss connected with the bottom plate; the bottom plate comprises an ultra-high performance concrete precast slab main body and a first embedded part embedded in the ultra-high performance concrete precast slab main body; the truss is formed by splicing a plurality of ultrahigh-performance concrete prefabricated rod pieces, and each ultrahigh-performance concrete prefabricated rod piece comprises an ultrahigh-performance concrete prefabricated rod main body and second embedded pieces embedded at two ends of the ultrahigh-performance concrete prefabricated rod main body; each ultrahigh-performance concrete prefabricated rod piece is fixed at the node by a connecting piece connected with the corresponding second embedded part; the connection part of the bottom plate and the truss is fixed by a connecting piece which is used for connecting the first embedded part and the corresponding second embedded part. During site operation, all components are directly assembled without site pouring, and the construction speed is high.
Description
Technical Field
The utility model relates to a bridge component technical field especially relates to an assembled ultra high performance concrete roof beam.
Background
The Ultra-High Performance Concrete (UHPC) is a cement-based material, has excellent mechanical properties, High tensile and compressive strength, good toughness and durability, and small creep under the action of long-term load, is not only beneficial to the development of bridges towards light and large span directions, but also can avoid structural cracking, enhance the durability of bridges under severe environments, reduce the later maintenance cost, and is a novel cement-based material with wide application prospect in the field of civil engineering bridges.
However, the existing ultrahigh-performance concrete beam needs to be cast in place in the construction process, so that the construction period is long.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention has been made to provide a fabricated ultra-high performance concrete beam that overcomes or at least partially solves the above problems.
The fabricated ultra-high performance concrete beam comprises a bottom plate and a truss connected with the bottom plate;
the bottom plate comprises an ultra-high performance concrete precast slab main body and a first embedded part embedded in the ultra-high performance concrete precast slab main body;
the truss is formed by splicing a plurality of ultrahigh-performance concrete prefabricated rod pieces, and each ultrahigh-performance concrete prefabricated rod piece comprises an ultrahigh-performance concrete prefabricated rod main body and second embedded pieces embedded at two ends of the ultrahigh-performance concrete prefabricated rod main body; each ultrahigh-performance concrete prefabricated rod piece is fixed at the node by a connecting piece connected with the corresponding second embedded part;
the connection part of the bottom plate and the truss is fixed by a connecting piece which is used for connecting the first embedded part and the corresponding second embedded part.
Optionally, the first embedded part, the second embedded part and the connecting part are provided with connecting through holes; the first embedded part and the connecting part are bolted and fixed through a bolt; and the second embedded part and the connecting part are bolted and fixed through bolts.
Optionally, the number of the trusses is one group, and the trusses are connected with the middle part of the bottom plate.
Optionally, the number of the trusses is two, and the two sets of trusses are respectively connected with two side edges of the bottom plate.
Optionally, the bottom plate further comprises a third embedded part pre-embedded in the main body of the ultra-high performance concrete precast slab, and the joint of two adjacent bottom plates is fixed by a connecting part connecting the third embedded parts arranged oppositely. Preferably, one of the two adjacent bottom plates has a length of 13m, and the other bottom plate has a length of 3.5m or 8.5 m.
Optionally, the third embedded part and the connecting part are provided with connecting through holes; and the third embedded part and the connecting part are bolted and fixed through bolts.
The utility model discloses possess following beneficial effect:
in the embodiment, the bottom plate and the ultra-high performance concrete prefabricated rod piece are prefabricated in a factory, the precision is high, and standardized production can be realized; the base materials adopted by the ultra-high performance concrete precast slab main body and the ultra-high performance concrete precast rod main body are ultra-high performance concrete, and the ultra-high performance concrete precast rod main body are high in strength, small in section size, small in material consumption and light in hoisting weight; the truss is spliced by adopting the ultrahigh-performance concrete prefabricated rods, so that the material is saved compared with a solid web, the dead weight is reduced, and the rigidity is increased; during site operation, all components are directly assembled without site pouring, and the construction speed is high.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic structural view of an embodiment of the fabricated ultra-high performance concrete beam according to the present application;
FIG. 2 is a schematic view illustrating the connection of the ultra-high performance concrete precast bars of FIG. 1 at nodes;
fig. 3 is a schematic structural view of another embodiment of the fabricated ultra-high performance concrete beam according to the present application;
FIG. 4 is a schematic view showing the connection of the ultra-high performance concrete precast bars of FIG. 2 at nodes;
fig. 5 is a schematic view of the connection between two adjacent bottom plates.
Description of reference numerals: 1. the ultra-high performance concrete precast slab main body; 2. prefabricating a rod piece by using ultra-high performance concrete; 3. the ultra-high performance concrete precast rod main body; 4. a second embedded part; 5. a connecting member; 6. and a third embedded part.
Detailed Description
The terms of orientation of upper, lower, left, right, front, rear, inner, outer, top, bottom, and the like, which are or may be referred to in this specification, are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state thereof. Therefore, these and other directional terms should not be construed as limiting terms.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover non-exclusive inclusions.
Example one
Referring initially to fig. 1, an exemplary embodiment of a fabricated ultra-high performance concrete beam according to the present invention is shown. As shown in fig. 1, the fabricated ultra-high performance concrete beam includes a base plate, and a truss connected to a middle portion of the base plate.
The bottom plate comprises an ultra-high performance concrete precast slab main body 1 and a first embedded part embedded in the ultra-high performance concrete precast slab main body 1. In this embodiment, the first embedded part is an embedded steel plate, and a connecting through hole is formed in a portion of the first embedded part extending out of the middle of the ultra-high performance concrete precast slab main body 1.
The truss is formed by splicing a plurality of ultrahigh-performance concrete prefabricated rod pieces 2, and each ultrahigh-performance concrete prefabricated rod piece 2 comprises an ultrahigh-performance concrete prefabricated rod main body 3 and second embedded parts 4 embedded at two ends of the ultrahigh-performance concrete prefabricated rod main body 3. In this embodiment, the second embedded part 4 is an embedded steel plate, and a connection through hole is formed in a portion of the second embedded part 4, which extends out of the end portion of the ultra-high performance concrete precast rod main body 3. Each ultra-high performance concrete prefabricated rod piece 2 is fixed at a node by a connecting piece 5 connected with a corresponding second embedded part 4, in the embodiment, the connecting piece 5 is a connecting steel plate, a connecting through hole is formed in the connecting piece 5, and the connecting piece 5 and the corresponding second embedded part 4 are bolted and fixed through a high-strength bolt. In an alternative embodiment, the connecting members 5 and the corresponding second embedded parts 4 are fixed by welding.
The connection part of the bottom plate and the truss is fixed by a connecting piece which connects the first embedded part and the corresponding second embedded part 4. Similarly, the connecting pieces are connecting steel plates, connecting through holes are formed in the connecting pieces, and the connecting pieces are bolted and fixed with the first embedded parts and the corresponding second embedded parts 4 through high-strength bolts, so that the truss and the bottom plate are fixed. In an alternative embodiment, the connecting member is fixed with the first embedded part and the corresponding second embedded part 4 by welding.
In this embodiment, the dimension parameters of the fabricated ultra-high performance concrete beam are as follows:
the length of the bottom plate is 13m, the width of the bottom plate is 50-100 cm, and the thickness of the bottom plate is 20-30 cm; the length of the truss is 13m, and the height is 60-100 cm.
The construction method of the assembled ultrahigh-performance concrete beam comprises the following steps:
prefabricating a bottom plate and an ultra-high performance concrete prefabricated rod piece in a factory;
erecting a bottom plate on a construction site, and splicing a truss; and positioning the truss, and connecting and fixing the truss with the bottom plate through a connecting piece.
The bottom plate and the ultra-high performance concrete prefabricated rod piece are prefabricated in a factory, the precision is high, and standardized production can be realized; the base materials adopted by the ultra-high performance concrete precast slab main body and the ultra-high performance concrete precast rod main body are ultra-high performance concrete, and the ultra-high performance concrete precast rod main body are high in strength, small in section size, small in material consumption and light in hoisting weight; the truss is spliced by adopting the ultrahigh-performance concrete prefabricated rods, so that the material is saved compared with a solid web, the dead weight is reduced, and the rigidity is increased; during site operation, all components are directly assembled without site pouring, and the construction speed is high.
Example two
Referring initially to fig. 3, another exemplary embodiment of a fabricated ultra-high performance concrete beam according to the present invention is shown. As shown in fig. 3, the fabricated ultra-high performance concrete beam includes a base plate, and two sets of trusses respectively connected to both side edges of the base plate.
The bottom plate comprises an ultra-high performance concrete precast slab main body 1 and a first embedded part embedded in the ultra-high performance concrete precast slab main body 1. In this embodiment, the first embedded part is an embedded steel plate, and a connecting through hole is formed in a portion of the first embedded part extending out of the middle of the ultra-high performance concrete precast slab main body 1.
The truss is formed by splicing a plurality of ultrahigh-performance concrete prefabricated rod pieces 2, and each ultrahigh-performance concrete prefabricated rod piece 2 comprises an ultrahigh-performance concrete prefabricated rod main body 3 and second embedded parts 4 embedded at two ends of the ultrahigh-performance concrete prefabricated rod main body 3. In this embodiment, the second embedded part 4 is an embedded steel plate, and a connection through hole is formed in a portion of the second embedded part 4, which extends out of the end portion of the ultra-high performance concrete precast rod main body 3. Each ultra-high performance concrete prefabricated rod piece 2 is fixed at a node by a connecting piece 5 connected with a corresponding second embedded part 4, in the embodiment, the connecting piece 5 is a connecting steel plate, a connecting through hole is formed in the connecting piece 5, and the connecting piece 5 and the corresponding second embedded part 4 are bolted and fixed through a high-strength bolt. In an alternative embodiment, the connecting members 5 and the corresponding second embedded parts 4 are fixed by welding.
The connection part of the bottom plate and the truss is fixed by a connecting piece which connects the first embedded part and the corresponding second embedded part 4. Similarly, the connecting pieces are connecting steel plates, connecting through holes are formed in the connecting pieces, and the connecting pieces are bolted and fixed with the first embedded parts and the corresponding second embedded parts 4 through high-strength bolts, so that the truss and the bottom plate are fixed. In an alternative embodiment, the connecting member is fixed with the first embedded part and the corresponding second embedded part 4 by welding.
Referring to fig. 5, the base plates further comprise third embedded parts 6 pre-buried in the ultra-high performance concrete precast slab main body 1, and the joints of two adjacent base plates are fixed by connecting pieces connected with the third embedded parts 6 which are oppositely arranged. In the embodiment, the third embedded part 6 is an embedded steel plate, and a connecting through hole is formed in the part of the third embedded part 6, which extends out of the side edge of the ultra-high performance concrete precast slab main body 1; and the connecting piece is provided with a connecting through hole, and the connecting piece and the third embedded part 6 are bolted and fixed through a high-strength bolt. In an alternative embodiment, the connecting piece and the third embedded part 6 are fixed by welding.
In this embodiment, the dimension parameters of the fabricated ultra-high performance concrete beam are as follows:
in two adjacent bottom plates, the length of one bottom plate is 13m, the corresponding assembled ultrahigh-performance concrete beam part is a main section, and correspondingly, the length of the truss is 13 m; the length of the other bottom plate is 3.5m or 8.5m, the corresponding assembled ultrahigh-performance concrete beam part is an auxiliary segment, and correspondingly, the length of the truss is 3.5m or 8.5 m. The width of the bottom plate is 50-100 cm, and the thickness of the bottom plate is 20-30 cm; the height of the truss is 60-100 cm. The main segment and the auxiliary segment can be spliced into 20m span (one main segment, two auxiliary segments with the specification of 3.5 m), 30m span (one main segment, two auxiliary segments with the specification of 8.5 m) and other spans.
The construction method of the assembled ultrahigh-performance concrete beam comprises the following steps:
prefabricating a bottom plate and an ultra-high performance concrete prefabricated rod piece in a factory;
erecting a bottom plate on a construction site, and splicing a truss; positioning the truss, and connecting and fixing the truss with the bottom plate through a connecting piece to obtain a main section and an auxiliary section;
and splicing the main section and the auxiliary section.
The bottom plate and the ultra-high performance concrete prefabricated rod piece are prefabricated in a factory, the precision is high, and standardized production can be realized; the base materials adopted by the ultra-high performance concrete precast slab main body and the ultra-high performance concrete precast rod main body are ultra-high performance concrete, and the ultra-high performance concrete precast rod main body are high in strength, small in section size, small in material consumption and light in hoisting weight; the truss is spliced by adopting the ultrahigh-performance concrete prefabricated rods, so that the material is saved compared with a solid web, the dead weight is reduced, and the rigidity is increased; during site operation, all components are directly assembled without site pouring, and the construction speed is high.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. The utility model provides an assembled ultra high performance concrete roof beam which characterized in that: comprises a bottom plate and a truss connected with the bottom plate;
the bottom plate comprises an ultra-high performance concrete precast slab main body and a first embedded part embedded in the ultra-high performance concrete precast slab main body;
the truss is formed by splicing a plurality of ultrahigh-performance concrete prefabricated rod pieces, and each ultrahigh-performance concrete prefabricated rod piece comprises an ultrahigh-performance concrete prefabricated rod main body and second embedded pieces embedded at two ends of the ultrahigh-performance concrete prefabricated rod main body; each ultrahigh-performance concrete prefabricated rod piece is fixed at the node by a connecting piece connected with the corresponding second embedded part;
the connection part of the bottom plate and the truss is fixed by a connecting piece which is used for connecting the first embedded part and the corresponding second embedded part.
2. The fabricated ultra-high performance concrete beam of claim 1, wherein: the first embedded part, the second embedded part and the connecting piece are provided with connecting through holes; the first embedded part and the connecting part are bolted and fixed through a bolt; and the second embedded part and the connecting part are bolted and fixed through bolts.
3. The fabricated ultra-high performance concrete beam of claim 1, wherein: the number of the trusses is one group, and the trusses are connected with the middle part of the bottom plate.
4. The fabricated ultra-high performance concrete beam of claim 1, wherein: the number of the trusses is two, and the two sets of trusses are respectively connected with the two side edges of the bottom plate.
5. The fabricated ultra-high performance concrete beam of claim 1, wherein: the bottom plates also comprise third embedded parts which are pre-embedded in the main body of the ultra-high performance concrete precast slab, and the joints of the two adjacent bottom plates are fixed by connecting pieces of the third embedded parts which are oppositely arranged.
6. The fabricated ultra-high performance concrete beam according to claim 5, wherein: the third embedded part and the connecting piece are provided with connecting through holes; and the third embedded part and the connecting part are bolted and fixed through bolts.
7. The fabricated ultra-high performance concrete beam according to claim 5 or 6, wherein: and the length of one of the two adjacent bottom plates is 13m, and the length of the other bottom plate is 3.5m or 8.5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922119681.4U CN211596422U (en) | 2019-11-28 | 2019-11-28 | Assembled ultra-high performance concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922119681.4U CN211596422U (en) | 2019-11-28 | 2019-11-28 | Assembled ultra-high performance concrete beam |
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| CN211596422U true CN211596422U (en) | 2020-09-29 |
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| CN201922119681.4U Active CN211596422U (en) | 2019-11-28 | 2019-11-28 | Assembled ultra-high performance concrete beam |
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