CN220619803U - Bridge deck bottom die - Google Patents
Bridge deck bottom die Download PDFInfo
- Publication number
- CN220619803U CN220619803U CN202322100785.7U CN202322100785U CN220619803U CN 220619803 U CN220619803 U CN 220619803U CN 202322100785 U CN202322100785 U CN 202322100785U CN 220619803 U CN220619803 U CN 220619803U
- Authority
- CN
- China
- Prior art keywords
- concrete
- mould
- prestressed steel
- basic mould
- concrete basic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000002023 wood Substances 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a bridge deck bottom die, which comprises a concrete basic die and a plurality of prestressed steel strands; inclined planes are arranged on two sides of the concrete basic mould, the two sides of the concrete basic mould are respectively and smoothly transited with the bottom surface of the concrete basic mould, and hanging rings are respectively arranged on two ends of the top of the concrete basic mould; the prestressed steel strands are embedded on the same plane in the bottom of the concrete base mold at intervals according to a distribution mode that the middle part is dense and the two sides are sparse, and are cast into a whole with the concrete base mold, and the prestressed steel strands longitudinally penetrate through the concrete base mold respectively. The utility model has the advantages of simple structure, low cost and high construction efficiency, and the trouble of disassembling the edge protection is omitted because the bottom die is not additionally installed, the smooth traffic can be ensured, and the potential safety hazard is eliminated. Compared with the traditional steel template and wood template, the utility model has the advantages of no occurrence of the conditions of expanding, flexing, deforming and the like, stable and reliable quality, reduced material waste and loss and improved durability of the bridge deck.
Description
Technical Field
The utility model relates to a building casting bottom die, in particular to a bridge deck bottom die applied to a bridge, and belongs to the technical field of municipal bridge construction.
Background
In municipal bridge construction, the surface layer process is required after the I beam is erected, and the bridge deck is installed on the I beam. At present, the bridge deck is constructed by adopting a mode of casting the concrete on site through wood or steel templates, and the mode is high in manufacturing cost, easy to abrade and short in service life, and in the manufacturing process, multiple times of adjustment and trimming are needed, so that time and labor are wasted, and the material waste is large. Meanwhile, as the cast-in-place concrete needs to be provided with the bottom die in advance, and the edge protection is required to be detached when the bottom die is installed, traffic can be seriously affected, construction efficiency is reduced, potential safety hazards are improved, and traffic order is disturbed.
Disclosure of Invention
The utility model aims to provide the bridge deck bottom die which has the advantages of simple structure, low cost, convenience in installation and high construction efficiency and does not influence traffic.
The utility model is realized by the following technical scheme:
a bridge deck bottom die comprises a concrete basic die and a plurality of prestressed steel strands; inclined planes are arranged on two sides of the concrete basic mould, the two sides of the concrete basic mould are respectively and smoothly transited with the bottom surface of the concrete basic mould, and hanging rings are respectively arranged at two ends of the top of the concrete basic mould; the prestressed steel strands are embedded on the same plane in the bottom of the concrete base mold at intervals according to a distribution mode that the middle part is dense and the two sides are sparse, and are cast into a whole with the concrete base mold, and the prestressed steel strands longitudinally penetrate through the concrete base mold respectively.
The object of the present utility model can be further achieved by the following technical means.
In the bridge deck bottom die, the distance h1 between the plane where the centers of the prestress steel strands are located and the top surface of the concrete basic die is 0.5-0.7 times of the thickness h2 of the concrete basic die.
The center distance a of the middle prestressed steel strand is 0.05-0.2 times of the total length L of the concrete basic mould, and the center distances b of the prestressed steel strands at two sides and the closest middle prestressed steel strand are respectively 0.2-0.4 times of the total length L of the concrete basic mould.
The bridge deck bottom die is characterized in that the concrete base die is made of C35 concrete, and the total length L of the concrete base die is 9 cm-11 cm longer than the truss spacing of the I beams.
The two ends of the bridge girder can be directly lapped on the I girder, when the bridge deck slab is installed, only reinforcing steel bars are bound on the bottom mould, and then cast-in-place concrete is carried out, so that the seamless lapping of the bottom mould and the I girder can be realized, the sectional operation and the addition of mechanical equipment are not required, the road sealing is not required, the structure is simple, the cost is low, the construction efficiency is high, and the trouble of disassembling the edge protection is avoided because the bottom mould is not required to be additionally installed, the smooth traffic can be ensured, and the potential safety hazard is eliminated. Compared with the traditional steel template and wood template, the concrete bottom die disclosed by the utility model has the advantages that the conditions of die expansion, deflection, deformation and the like do not occur, the quality is stable and reliable, the waste and loss of materials are reduced, and the durability of the bridge deck is improved. The utility model adopts the prestress steel strand as the framework, and has high strength and good relaxation. Hanging rings are embedded at two ends of the top of the concrete base mould, so that the concrete base mould is convenient to transport and install.
Advantages and features of the utility model will be illustrated and explained by the following non-limiting description of preferred embodiments, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is an enlarged cross-sectional view of A-A of fig. 1.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
As shown in fig. 1 and 2, the present utility model includes a concrete base mold 1 and five prestressed steel strands 2. The two sides 11 of the concrete basic mould 1 are inclined planes and are in smooth transition with the bottom 12 of the concrete basic mould 1 respectively, and the two ends of the top of the concrete basic mould 1 are provided with hanging rings 3 respectively. Five prestressed steel strands 2 are embedded on the same plane in the bottom of the concrete basic mould 1 at intervals according to a distribution mode that the middle part is dense and the two sides are sparse, and are cast into a whole with the concrete basic mould 1, and the five prestressed steel strands 2 longitudinally penetrate through the concrete basic mould 1 respectively. The concrete base mold 1 is made of C35 concrete, the total length L of the concrete base mold 1 is 9 cm-11 cm longer than the spacing between the truss members of the I beam, and in the embodiment, the total length L of the concrete base mold 1 is 10cm longer than the spacing between truss members of the I beam.
The distance h1 between the plane of the centers of the five prestressed steel strands 2 and the top surface of the concrete basic mould 1 is 0.5-0.7 times of the thickness h2 of the concrete basic mould 1, the center distance a of the middle prestressed steel strand 2 is 0.05-0.2 times of the total length L of the concrete basic mould 1, and the center distances b of the two side prestressed steel strands 2 and the nearest middle prestressed steel strand 2 are respectively 0.2-0.4 times of the total length L of the concrete basic mould 1. In this embodiment, h1 is 0.65 times of h2, a is 0.1 times of L, and b is 0.32 times of L, so that the strength and the looseness of the whole bottom die can be effectively ensured by the design. The design site load of the prefabricated arch bottom plate is not less than 600 kg/square meter, the diameter of the prestressed steel strand 2 is 0.4mm, and the relaxation level is 1770Mpa.
During construction, concrete bottom molds with corresponding lengths are selected according to the truss spacing of the I beams on site, elastic lines of 5cm inwards are marked on two sides of the edges of the I beams to form overlapping edges of the concrete bottom molds, then a person operates a machine, the position of the concrete bottom molds is adjusted by the person, and the bottom molds are tightly spliced with the bottom molds until the whole collapse bottom molds are erected. And finally, sealing the lap joint gap by using fine concrete to prevent subsequent concrete leakage, and checking whether the gap is sealed after the concrete is hardened. And then erecting binding steel bars and pouring concrete. And so on, the next construction is performed.
In addition to the above embodiments, other embodiments of the present utility model are possible, and all technical solutions formed by equivalent substitution or equivalent transformation are within the scope of the present utility model.
Claims (4)
1. The utility model provides a bridge deck die block which characterized in that: the concrete mold comprises a concrete basic mold and a plurality of prestressed steel strands; inclined planes are arranged on two sides of the concrete basic mould, the two sides of the concrete basic mould are respectively and smoothly transited with the bottom surface of the concrete basic mould, and hanging rings are respectively arranged at two ends of the top of the concrete basic mould; the prestressed steel strands are embedded on the same plane in the bottom of the concrete base mold at intervals according to a distribution mode that the middle part is dense and the two sides are sparse, and are cast into a whole with the concrete base mold, and the prestressed steel strands longitudinally penetrate through the concrete base mold respectively.
2. The deck bed die of claim 1, wherein: the distance h1 between the plane where the centers of the prestress steel strands are located and the top surface of the concrete basic mould is 0.5-0.7 times of the thickness h2 of the concrete basic mould.
3. The deck bed die of claim 2, wherein: the center distance a of the middle prestressed steel strand is 0.05-0.2 times of the total length L of the concrete basic mould, and the center distances b of the two side prestressed steel strands and the closest middle prestressed steel strand are respectively 0.2-0.4 times of the total length L of the concrete basic mould.
4. The deck bed die of claim 1, wherein: the concrete base mould is made of C35 concrete, and the total length L of the concrete base mould is 9 cm-11 cm longer than the truss spacing of the I beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322100785.7U CN220619803U (en) | 2023-08-07 | 2023-08-07 | Bridge deck bottom die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322100785.7U CN220619803U (en) | 2023-08-07 | 2023-08-07 | Bridge deck bottom die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220619803U true CN220619803U (en) | 2024-03-19 |
Family
ID=90211771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322100785.7U Active CN220619803U (en) | 2023-08-07 | 2023-08-07 | Bridge deck bottom die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220619803U (en) |
-
2023
- 2023-08-07 CN CN202322100785.7U patent/CN220619803U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |