CN210395107U - Temporary supporting device for large-span prestressed capping beam - Google Patents
Temporary supporting device for large-span prestressed capping beam Download PDFInfo
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- CN210395107U CN210395107U CN201920796533.3U CN201920796533U CN210395107U CN 210395107 U CN210395107 U CN 210395107U CN 201920796533 U CN201920796533 U CN 201920796533U CN 210395107 U CN210395107 U CN 210395107U
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- longeron
- crossbeam
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- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 32
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 238000012876 topography Methods 0.000 abstract description 4
- 230000007306 turnover Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 210000002469 basement membrane Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001184547 Agrostis capillaris Species 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The utility model relates to a road and bridge engineering construction field specifically is a temporary strutting arrangement of large-span prestressing force bent cap, be applicable to the construction of the large-span bent cap that the pier height is no more than 20m in highway and the municipal bridge engineering under all kinds of complicated topography condition, including jack, stand and concrete base, the concrete base sets up subaerial, the jack is connected in concrete base upper end, the stand is connected in the jack upper end, the stand upper end still is connected with the longeron, the longeron upper end still is connected with the crossbeam, the crossbeam upper end still is connected with the die block, still be equipped with the connecting pull rod above the stand of the same row, the pier upper end is connected with the staple bolt, the staple bolt upper end is connected with the jack, stand and longeron equipment are convenient, dismantle soon after the construction, the turnover is fast, adjust the elevation of die block with the jack control, it is swift; the method can be repeatedly used, a large amount of manual labor and material loss are saved, the construction period is effectively shortened, the construction cost is saved, and the economic benefit is improved.
Description
Technical Field
The utility model relates to a road and bridge engineering construction field specifically is an interim strutting arrangement of large-span prestressing force bent cap, is applicable to the construction that the pier height is not more than 20 m's large-span bent cap among all kinds of complicated topography condition highway and the municipal bridge engineering, except that the operation on water.
Background
In recent years, with the promotion of expressway design and construction environmental protection concepts, more and more large-span prestressed capping beams appear in highway bridge engineering, the damage of bridge substructure construction to existing roads, river channels and water systems is greatly reduced, and the surrounding environment is protected.
But the construction difficulty is increased along with the increase of the span and the construction load of the bent cap beam by multiple times compared with the common bent cap beam. Traditional full hall support and bailey beam support construction technique factor of safety is high, but the consumptive material takes a lot of work, and the process is numerous and diverse, and can't satisfy under the complicated topography condition construction. The hoop method cannot overcome the construction load and deformation of the large-span bent cap.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a temporary strutting arrangement of longspan prestressing force bent cap, overcome the shortcoming of traditional bent cap construction technology in longspan prestressing force bent cap construction, reduce the time limit for a project by a wide margin when practicing thrift the cost, be applicable to the construction that pier height is not more than 20 m's longspan bent cap among all kinds of complicated topographic conditions highway and the municipal bridge engineering, except that the operation on water.
For solving the problem, a temporary strutting arrangement of large-span prestressing force bent cap, including jack, stand and concrete base, concrete base sets up on the bottom surface, the jack is connected in concrete base upper end, the stand is connected in the jack upper end, the stand upper end still is connected with the longeron, the longeron upper end still is connected with the crossbeam, the crossbeam upper end still is connected with the die block. The vertical column and the longitudinal beam are convenient to assemble during construction, quick to disassemble and quick to turnover after construction, the jack is used for controlling and adjusting the elevation of the bottom die, and the vertical column and the longitudinal beam are quick and convenient to assemble and high in precision and do not need to be matched with other mechanical equipment; can be repeatedly used, and saves resources.
Further, the top surface of the stand column is provided with a groove, the longitudinal beam is connected in the groove, the stand column is further connected with a short connecting rod, and the short connecting rod penetrates through the longitudinal beam and the side wall of the groove. The stability of longeron and pole setting connection is guaranteed.
Furthermore, the crossbeam connect in the longeron upside, the crossbeam is perpendicular with the longeron, the crossbeam is equipped with a plurality ofly. The crossbeam supports the basement membrane, and the area of contact of a plurality of crossbeams and basement membrane is that the longeron atress is more even.
Furthermore, a pressure-bearing steel plate is connected between the jack and the upright post. The jack and the upright post are reported by the pressure-bearing steel plate, so that the jack is prevented from being damaged by a small area of the bottom surface of the upright post.
Furthermore, the lower end of the bottom die is connected with a column pier, a hoop is connected to the column pier, the hoop is tightly attached to the column pier, a jack is connected to the upper end of the hoop, and the jack is connected between the hoop and the longitudinal beam. And controlling and adjusting the elevation of the bottom die by using a jack.
Furthermore, the longitudinal beams are provided with two longitudinal beams, the lower sides of the two longitudinal beams are connected with stand columns, the axes of the two stand columns are on the same plane, a connecting pull rod is arranged above the stand columns in the same row, and the connecting pull rod penetrates through the two longitudinal beams. The bottom die is better supported horizontally by the two longitudinal beams and the upright posts.
Furthermore, the hoop is provided with two jacks, and the two jacks are respectively connected between the two longitudinal beams and the hoop. When the elevation of the bottom die is adjusted, the two jacks are simultaneously operated to enable the bottom die to horizontally and uniformly ascend or descend.
Furthermore, the longitudinal beam is composed of I-shaped steel.
Furthermore, the jack is a mechanical screw jack.
The utility model has the advantages that: the vertical column and the longitudinal beam are convenient to assemble during construction, the disassembly after construction is quick, the turnover is quick, the height of the bottom die is adjusted by controlling the jack, and the vertical column and the concrete base are quick and convenient, high in precision and free of matching with other mechanical equipment; the method can be repeatedly used, a large amount of manual labor and material loss are saved, the construction period is effectively shortened, the construction cost is saved, and the economic benefit is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view taken along line a of fig. 1 according to the present invention;
fig. 3 is a front view of fig. 1 according to the present invention;
FIG. 4 is a cross-sectional view of the concrete foundation of the present invention;
fig. 5 is a front view of the column pier and the anchor ear of the present invention;
fig. 6 is a cross-sectional view of the pier and the hoop of the present invention.
In the figure: 1. hooping; 2. a jack; 3. a stringer; 4. a column; 5. a concrete base; 6. connecting a pull rod; 7. a short connecting rod; 8. a cross beam; 9. bottom die; 10. a pressure-bearing steel plate.
Detailed Description
As shown in fig. 1, the utility model relates to a temporary support device for a large-span prestressed bent cap, which comprises a jack 2, a stand column 4 and a concrete base 5, wherein the concrete base 5 is arranged on the bottom surface, the jack 2 is connected with the upper end of the concrete base 5, the stand column 4 is connected with the upper end of the jack 2, the upper end of the stand column 4 is also connected with a longitudinal beam 3, the upper end of the longitudinal beam 3 is also connected with a cross beam 8, and the upper end of the cross beam 8 is also connected with a bottom die 9; the lower end of the bottom die 9 is connected with a column pier, the column pier is connected with a hoop 1, the hoop 1 is tightly attached to the column pier, the upper end of the hoop 1 is connected with a jack 2, and the jack 2 is connected between the hoop 1 and the longitudinal beam 3.
As shown in fig. 2 and 3, two longitudinal beams 3 are arranged, the two longitudinal beams 3 are arranged in parallel, the lower sides of the two longitudinal beams 3 are connected with vertical columns 4, the axes of the two vertical columns 4 are on the same plane, connecting pull rods 6 are arranged above the vertical columns 4 in the same row, and the connecting pull rods 6 penetrate through the two longitudinal beams 3.4 top surfaces of stand be equipped with the recess, longeron 3 is connected in the recess, still is connected with short connecting rod 7 on the stand 4, short connecting rod 7 runs through longeron 3 and recess lateral wall. Crossbeam 8 connect in two longerons 3 upside, crossbeam 8 is perpendicular with longeron 3, crossbeam 8 is equipped with a plurality ofly, and a plurality of crossbeam 8 arrays are laid.
As shown in fig. 4, a pressure-bearing steel plate 10 is connected between the jack 2 and the upright post 4.
As shown in fig. 5 and 6, the lower end of the bottom die 9 is connected with a column pier, the column pier is connected with a hoop 1, the hoop 1 is tightly attached to the column pier, the upper end of the hoop 1 is connected with a jack 2, the jack 2 is connected between the hoop 1 and the longitudinal beam 3, the jacks 2 are arranged on the hoop 1, and the jacks 2 are respectively connected between the longitudinal beams 3 and the hoop 1.
The longitudinal beam 3 is composed of I-shaped steel. The jack 2 is a mechanical screw jack.
The utility model discloses stand and longeron equipment is convenient during the construction, and the dismantlement is fast after the construction, and the turnover is fast, and the height of adjusting the die block is controlled with the jack, and is swift convenient, and the precision is high, need not other mechanical equipment cooperations; the method can be repeatedly used, a large amount of manual labor and material loss are saved, the construction period is effectively shortened, the construction cost is saved, and the economic benefit is improved.
The utility model overcomes the shortcoming of traditional bent cap construction technology in the construction of large-span prestressing force bent cap, reduce the time limit for a project by a wide margin when practicing thrift the cost, be applicable to the construction that the pier height is not more than 20 m's large-span bent cap among all kinds of complicated topography condition highway and the municipal bridge engineering, the operation on water is except.
Table 1 is to same a slice prestressing force bent cap, uses the utility model discloses construct and use prior art full hall support to carry out the economic benefits analysis contrast table of constructing:
table 1: economic benefit analysis and comparison table
Analyzing and comparing economic benefits; adopt the utility model discloses carry out the construction and reduce about 11 ten thousand yuan than prior art direct cost, the time limit for a project shortens 7 days to a bridge of river course is striden to a certain example, and full-bridge material saving takes 27 ten thousand yuan, practices thrift labour cost 26.4 ten thousand yuan, practices thrift cost 53.4 ten thousand yuan in total, and the time limit for a project 60 days, and economic benefits is showing, is worth promoting.
The utility model discloses on prior art's basis, add interim strutting arrangement, a large amount of construction materials have been saved, constructor's intensity of labour has been alleviateed, auxiliary facilities has been simplified, simultaneously fine improvement the accuracy of bent cap die block standard height, guaranteed that the form removal in-process concrete member finished product does not receive the damage, by a wide margin reduction of erection time, better solution the prior art construction degree of difficulty big, drop into big, the long problem of operation period, reached expected effect.
Claims (9)
1. The utility model provides a temporary strutting arrangement of large-span prestressing force bent cap which characterized in that: including jack (2), stand (4) and concrete foundation (5), concrete foundation (5) set up subaerial, and jack (2) are connected in concrete foundation (5) upper end, and stand (4) are connected in jack (2) upper end, and stand (4) upper end is connected with longeron (3), and longeron (3) upper end is connected with crossbeam (8), and crossbeam (8) upper end is connected with die block (9).
2. The temporary supporting device for the large-span prestressed capping beam of claim 1, wherein: the top surface of the upright post (4) is provided with a groove, the longitudinal beam (3) is connected in the groove, the upright post (4) is also connected with a short connecting rod (7), and the short connecting rod (7) penetrates through the longitudinal beam (3) and the groove side wall.
3. The temporary supporting device for the large-span prestressed capping beam of claim 1, wherein: crossbeam (8) connect in longeron (3) upside, crossbeam (8) are perpendicular with longeron (3), crossbeam (8) are equipped with a plurality ofly.
4. The temporary supporting device for the large-span prestressed capping beam of claim 1, wherein: and a pressure-bearing steel plate (10) is connected between the jack (2) and the upright post (4).
5. The temporary supporting device for the large-span prestressed capping beam of claim 1, wherein: the lower end of the bottom die (9) is connected with a column pier, the anchor ear (1) is connected to the column pier, the column pier is tightly attached to the anchor ear (1), the jack (2) is connected to the upper end of the anchor ear (1), and the jack (2) is connected between the anchor ear (1) and the longitudinal beam (3).
6. The temporary supporting device for the large-span prestressed capping beam of claim 1, wherein: longeron (3) be equipped with two, two longeron (3) downside all are connected with stand (4), two stand (4) axes are on the coplanar, same row of stand (4) top still is equipped with connection pull rod (6), connect pull rod (6) run through on two longerons (3).
7. The temporary supporting device for the large-span prestressed capping beam of claim 5, wherein: the anchor ear (1) is provided with two jacks (2), and the two jacks (2) are respectively connected between the two longitudinal beams (3) and the anchor ear (1).
8. The temporary support device for the large-span prestressed capping beam according to any one of claims 1 to 7, wherein: the longitudinal beam (3) is composed of I-shaped steel.
9. The temporary support device for the large-span prestressed capping beam according to any one of claims 1 to 7, wherein: the jack (2) is a mechanical screw jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920796533.3U CN210395107U (en) | 2019-05-30 | 2019-05-30 | Temporary supporting device for large-span prestressed capping beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920796533.3U CN210395107U (en) | 2019-05-30 | 2019-05-30 | Temporary supporting device for large-span prestressed capping beam |
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| CN210395107U true CN210395107U (en) | 2020-04-24 |
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| CN201920796533.3U Active CN210395107U (en) | 2019-05-30 | 2019-05-30 | Temporary supporting device for large-span prestressed capping beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080116A (en) * | 2019-05-30 | 2019-08-02 | 甘肃路桥建设集团有限公司 | A kind of large-span prestressed bent cap supporting apparatus and its construction method |
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2019
- 2019-05-30 CN CN201920796533.3U patent/CN210395107U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080116A (en) * | 2019-05-30 | 2019-08-02 | 甘肃路桥建设集团有限公司 | A kind of large-span prestressed bent cap supporting apparatus and its construction method |
| CN110080116B (en) * | 2019-05-30 | 2024-08-16 | 甘肃路桥建设集团有限公司 | Large-span prestressed bent cap temporary supporting device and construction method thereof |
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