CN114991019A - Pre-buried die and construction method for pre-buried bolts of bridge bottom manhole cover plate - Google Patents
Pre-buried die and construction method for pre-buried bolts of bridge bottom manhole cover plate Download PDFInfo
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- CN114991019A CN114991019A CN202210849748.3A CN202210849748A CN114991019A CN 114991019 A CN114991019 A CN 114991019A CN 202210849748 A CN202210849748 A CN 202210849748A CN 114991019 A CN114991019 A CN 114991019A
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- bolt
- template
- embedded
- sleeve
- cover plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides an embedded die of embedded bolts of a bridge bottom access hole cover plate and a construction method, and relates to the technical field of construction templates. After the concrete is formed, the upper surfaces of the sleeve and the steel plate are poured in the concrete and are tightly connected with the concrete. And after the bottom template is removed, the embedded bolts fall down, and the bottom ends of the embedded bolts extend out of the bolt holes and are used for installing the cover plate. According to the invention, holes do not need to be drilled on the bottom template, and the bottom template at the position of the embedded bolt is prevented from leaking slurry, so that the construction quality and the attractiveness of the beam concrete are improved, the template is prevented from being damaged, the turnover frequency of the template is increased, and the service life of the template is prolonged. And be provided with horizontal pole and vertical pole, accomplish at the buried bolt construction of embedding, when using the nut to carry out the apron installation, because horizontal pole and vertical pole counterbalance, can not drive buried bolt in advance and rotate together when consequently rotating the nut.
Description
Technical Field
The invention relates to the technical field of construction templates, in particular to an embedded die and a construction method for embedded bolts of a bridge bottom manhole cover plate.
Background
Along with the development of society, the bridge is more and more, and in order to guarantee the safe use of bridge, maintenance unit often sends the people and enters into the internal portion of roof beam from the access hole of bridge, inspects the bridge situation, and maintains. The manway of the bridge is usually provided at the bottom of the beam. Before the overhaul, open the apron and get into the internal portion of roof beam, overhaul the back of finishing and install the apron in the roof beam body bottom through the bolt, seal the access hole.
In the construction process, the traditional method of embedding the bolts is to open holes in a bottom template of the beam body, the bolts extend out of the beam body through the holes in the template, and then concrete is poured. The method has two defects, namely, the template is damaged by opening the holes, and the service life of the template is shortened; secondly, in the process of beam concrete pouring, the phenomena of slurry leakage and the like easily occur at the opening position of the template, and the appearance of the beam concrete is influenced. Therefore, a new construction method of embedded bolts is needed to avoid the above drawbacks.
Disclosure of Invention
In view of the above, the present invention provides an embedded mold for embedding a bolt in a manhole cover plate at a bottom of a bridge and a construction method thereof, so as to solve the above problems.
Based on the purpose, the invention provides an embedded die of an embedded bolt of a bridge bottom access hole cover plate, which comprises: the die comprises a bottom template, side templates, annular plates and sleeves; the side form board is cylindrical structure, and the side form board is connected on the die block board, and the cover is equipped with the annular slab on the side form board, and the annular slab is connected with the die block board, has seted up the bolt hole on the annular slab, wears to be equipped with embedded bolt in the bolt hole, and the embedded bolt top is covered with the sleeve, and the sleeve top is sealing structure, and the sleeve bottom is connected with the annular slab.
Furtherly still includes horizontal pole and vertical pole, and horizontal pole and vertical pole all set up in the sleeve, and the horizontal pole is connected on the bolt cap of buried bolt in advance, and the vertical pole is connected on the annular slab of buried bolt one side in advance, and the vertical pole supports with horizontal pole end portion. Construction of the embedded bolt is completed, and when the nut is used for installing the cover plate, the transverse rod is abutted to the longitudinal rod, so that the embedded bolt cannot be driven to rotate together when the nut is rotated.
A construction method for embedding bolts in a bridge bottom access hole cover plate is carried out according to the following steps:
and S1, mounting the bottom template, and connecting the side template on the bottom template.
And S2, sleeving the annular plate with the bolt hole on the side template, and connecting the annular plate with the bottom template.
And S3, connecting a vertical rod to the annular plate on one side of the bolt hole.
S4, connecting a cross rod on a bolt cap of the embedded bolt, respectively extending the bolt cap from two ends of the cross rod, installing the embedded bolt in a bolt hole, and enabling the end part of the cross rod to abut against a longitudinal rod.
And S5, covering a sleeve above the embedded bolt, the cross rod and the longitudinal rod, and connecting the sleeve to the annular plate.
And S6, pouring concrete, and after the concrete is formed, removing the bottom template and the side template to finish the construction of the embedded bolt.
Compared with the prior art, the invention has the beneficial effects that: after the concrete is formed, the upper surfaces of the sleeve and the steel plate are poured in the concrete and are tightly connected with the concrete. And after the bottom template is removed, the embedded bolts fall down, and the bottom ends of the embedded bolts extend out of the bolt holes and are used for installing the cover plate. According to the invention, holes do not need to be drilled on the bottom template, and the bottom template at the position of the embedded bolt is prevented from leaking slurry, so that the construction quality and the attractiveness of the beam concrete are improved, the template is prevented from being damaged, the turnover frequency of the template is increased, and the service life of the template is prolonged.
Drawings
FIG. 1 is a schematic side formwork installation diagram of a construction method for embedding bolts in a bridge bottom manhole cover plate according to an embodiment of the invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic installation diagram of an annular plate of the construction method for embedding bolts in a bridge bottom access hole cover plate according to the embodiment of the invention;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 5 is a schematic diagram of longitudinal bar installation in the construction method of the embedded bolts of the access hole cover plate at the bottom of the bridge provided by the embodiment of the invention;
FIG. 6 is a cross-sectional view taken at C-C of FIG. 5;
FIG. 7 is a cross bar installation schematic view of a construction method for embedding bolts in a bridge bottom manhole cover plate according to an embodiment of the invention;
FIG. 8 is a cross-sectional view taken along line D-D of FIG. 7;
FIG. 9 is a schematic sleeve installation diagram of a construction method for embedding bolts in a bridge bottom manhole cover plate according to an embodiment of the invention;
FIG. 10 is a cross-sectional view taken at E-E of FIG. 9;
fig. 11 is a schematic cover plate installation diagram of a construction method for embedding bolts in a bridge bottom manhole cover plate according to an embodiment of the present invention;
fig. 12 is a sectional view taken along line F-F in fig. 11.
Labeled as: 1. a beam body top plate; 2. a beam body bottom plate; 3. a cylindrical sideform; 4. an annular plate; 5. bolt holes; 6. embedding bolts; 7. a cross bar; 8. a longitudinal bar; 9. a sleeve; 10. a bottom template; 11. and a cover plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to specific embodiments below.
The invention provides an embedded die for embedded bolts of a bridge bottom access hole cover plate, which comprises a bottom template 10, side templates 3, annular plates 4, sleeves 9, cross rods 7, longitudinal rods 8 and the like. When the bridge is constructed, the bridge comprises a beam top plate 1 above and a beam bottom plate 2 below, and the bottom template 10 is a template for constructing the beam bottom plate 2. The side template 3 is a cylindrical structure and is used for reserving an access hole. The side template 3 is connected on the die block board 10, and the cover is equipped with the annular slab 4 on the side template 3, and the annular slab 4 is connected with the die block board 10, has seted up bolt hole 5 on the annular slab 4, wears to be equipped with embedded bolt 6 in the bolt hole 5, and the embedded bolt 6 top is covered with sleeve 9, and sleeve 9 top is sealing structure, and sleeve 9 bottom is connected with the annular slab 4. Horizontal pole 7 and vertical pole 8 all set up in sleeve 9, and horizontal pole 7 is connected on the bolt cap of buried bolt 6 in advance, and vertical pole 8 is connected on the annular plate 4 of buried bolt 6 one side in advance, and vertical pole 8 offsets with 7 tip on the horizontal pole. When the construction of the embedded bolt 6 is completed and the nut is used for installing the cover plate 11, the transverse rod 7 is abutted to the longitudinal rod 8, so that the embedded bolt 6 cannot be driven to rotate together when the nut is rotated.
A construction method for embedding bolts in a bridge bottom manhole cover plate is carried out according to the following steps:
and S1, as shown in figures 1 and 2, installing the bottom template 10, connecting the side templates 3 on the bottom template 10, and tightly jointing the bottom template 10 and the side templates 3 to prevent concrete from flowing into the side templates 3 and influencing the formation of the access hole. The installation positions of the bottom formworks 10 and the side formworks 3, the elevations of the side formworks 3, the sizes of the side formworks 3 and the like are all set according to actual design requirements and construction specifications.
S2, manufacturing the annular plate 4 by using a steel plate, wherein the inner diameter of the annular plate 4 is matched with the outer diameter of the side die plate 3. Bolt holes 5 are drilled in the annular plate 4, the bolt holes 5 are uniformly distributed, and the positions of the bolt holes 5 and the diameters of the holes are set according to construction requirements. As shown in fig. 3 and 4, the ring plate 4 is fitted over the side mold plate 3, and the ring plate 4 is fixedly connected to the bottom mold plate 10.
S3, as shown in fig. 5 and 6, the vertical bar 8 is connected to the annular plate 4 on the bolt hole 5 side. In this embodiment, the vertical rod 8 is made of HPB steel bars with a diameter of 6mm, the vertical rod 8 is longer than the embedded bolts by about 610mm, when the embedded bolts 6 are installed in the bolt holes 5, the clear distance between the vertical rod 8 and the bolt caps of the embedded bolts 6 is about 5mm, and the vertical rod 8 is welded to the annular plate 4 near each bolt hole 5.
S4, as shown in fig. 7 and 8, the cross bars 7 are connected to the bolt caps of the respective insert bolts 6, the insert bolts 6 are fitted into the bolt holes 5, and the end portions of the cross bars 7 abut against the vertical bars 8. In the embodiment, the cross rod 7 is made of HPB steel bars with the diameter of 6mm, the length of the cross rod 7 is more than or equal to 2d +5mm, wherein d is the distance from the center of the longitudinal rod 8 to the center of the bolt cap, two ends of the cross rod 7 respectively extend out of the bolt cap, and the length of each end extending out of the bolt cap is more than or equal to 10 mm.
S5, as shown in figures 9 and 10, covering the sleeves 9 above the embedded bolts 6, the cross rods 7 and the longitudinal rods 8, welding the sleeves 9 on the annular plate 4, ensuring tight welding of the sleeves 9 and the annular plate 4, and preventing concrete from flowing into the sleeves 9 in the subsequent concrete pouring process. In this embodiment, the sleeve 9 is made of a steel pipe with an inner diameter of L +5mm, the length of the steel pipe is approximately equal to the length of the vertical rod 8, the steel plate is cut into a circular shape, and the steel pipe is welded to the top of the steel pipe to tightly seal the top of the steel pipe.
And S6, pouring concrete and constructing the beam body bottom plate 2, and after the concrete is formed and the strength reaches the design requirement, removing the bottom template 10 and the side templates 3. After the bottom template 10 is removed, the bottom of the embedded bolt 6 loses support, so that the embedded bolt 6 falls, the bottom end of the embedded bolt 6 extends out of the bolt hole 5, and the construction of the embedded bolt 6 is completed. As shown in fig. 11 and 12, the cover plate 11 is mounted by aligning the mounting holes of the cover plate 11 with the embedded bolts 6 and fastening them with nuts, thereby closing the access opening.
Therefore, according to the invention, holes do not need to be drilled on the bottom template 10, and the bottom template 10 at the position of the embedded bolt 6 is prevented from leaking slurry, so that the construction quality and the attractiveness of the beam concrete are improved, the template is prevented from being damaged, the turnover frequency of the template is increased, and the service life of the template is prolonged.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (3)
1. Bridge bottom access hole apron embedded bolt's pre-buried mould includes: the mould comprises a bottom template, side templates, an annular plate and a sleeve; it is characterized in that the preparation method is characterized in that,
the side form board is cylindrical structure, and the side form board is connected on the die block board, and the cover is equipped with the annular slab on the side form board, and the annular slab is connected with the die block board, has seted up the bolt hole on the annular slab, wears to be equipped with embedded bolt in the bolt hole, and the embedded bolt top is covered with the sleeve, and the sleeve top is sealing structure, and the sleeve bottom is connected with the annular slab.
2. The embedded die for the embedded bolts of the access hole cover plate at the bottom of the bridge as claimed in claim 1, further comprising a cross rod and a longitudinal rod, wherein the cross rod and the longitudinal rod are both arranged in the sleeve, the cross rod is connected to the bolt cap of the embedded bolt, the longitudinal rod is connected to the annular plate on one side of the embedded bolt, and the longitudinal rod is abutted to the end of the cross rod.
3. The construction method of the bridge bottom access hole cover plate embedded bolt using the embedded mold of the bridge bottom access hole cover plate embedded bolt as described in claim 1 or 2 is characterized by comprising the following steps:
s1, mounting a bottom template, and connecting a side template on the bottom template;
s2, sleeving the annular plate with the bolt holes on the side template, and connecting the annular plate with the bottom template;
s3, connecting a longitudinal rod on the annular plate on one side of the bolt hole;
s4, connecting a cross rod to a bolt cap of the embedded bolt, wherein two ends of the cross rod respectively extend out of the bolt cap, installing the embedded bolt in a bolt hole, and the end part of the cross rod is abutted against the longitudinal rod;
s5, covering a sleeve above the embedded bolt, the transverse rod and the longitudinal rod, and connecting the sleeve to the annular plate;
and S6, pouring concrete, and after the concrete is formed, removing the bottom template and the side template to complete the construction of the embedded bolt.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210849748.3A CN114991019A (en) | 2022-07-20 | 2022-07-20 | Pre-buried die and construction method for pre-buried bolts of bridge bottom manhole cover plate |
| CN202222664600.0U CN218116172U (en) | 2022-07-20 | 2022-10-11 | Pre-buried mould of bridge bottom access hole apron embedded bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210849748.3A CN114991019A (en) | 2022-07-20 | 2022-07-20 | Pre-buried die and construction method for pre-buried bolts of bridge bottom manhole cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114991019A true CN114991019A (en) | 2022-09-02 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210849748.3A Pending CN114991019A (en) | 2022-07-20 | 2022-07-20 | Pre-buried die and construction method for pre-buried bolts of bridge bottom manhole cover plate |
| CN202222664600.0U Active CN218116172U (en) | 2022-07-20 | 2022-10-11 | Pre-buried mould of bridge bottom access hole apron embedded bolt |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222664600.0U Active CN218116172U (en) | 2022-07-20 | 2022-10-11 | Pre-buried mould of bridge bottom access hole apron embedded bolt |
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|---|---|
| CN (2) | CN114991019A (en) |
Citations (9)
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|---|---|---|---|---|
| KR20060109644A (en) * | 2005-04-18 | 2006-10-23 | 권경해 | Framework reclamation anchor for houses for installing various products |
| CN204000622U (en) * | 2014-07-03 | 2014-12-10 | 中铁二十一局集团第三工程有限公司 | Road and bridge concreting preformed hole or built-in fitting are from active and inactive mold stripper apparatus |
| CN104947597A (en) * | 2015-07-07 | 2015-09-30 | 中建三局第二建设工程有限责任公司 | Concrete box girder manhole model sealing system and construction method |
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2022
- 2022-07-20 CN CN202210849748.3A patent/CN114991019A/en active Pending
- 2022-10-11 CN CN202222664600.0U patent/CN218116172U/en active Active
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| CN218116172U (en) | 2022-12-23 |
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