CN102493334A - Bearing platform cable-stayed precast assembled column bearing platform structure and assembling and positioning process thereof - Google Patents
Bearing platform cable-stayed precast assembled column bearing platform structure and assembling and positioning process thereof Download PDFInfo
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- CN102493334A CN102493334A CN2011103889786A CN201110388978A CN102493334A CN 102493334 A CN102493334 A CN 102493334A CN 2011103889786 A CN2011103889786 A CN 2011103889786A CN 201110388978 A CN201110388978 A CN 201110388978A CN 102493334 A CN102493334 A CN 102493334A
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- cushion cap
- prestressing force
- stand column
- prefabricated stand
- positioning
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Abstract
The invention discloses a bearing platform cable-stayed precast assembled column bearing platform structure. The structure comprises a column and a bearing platform, wherein the column is formed by assembling a plurality of precast column segments; each precast column segment is provided with a positioning through hole; and a prestressed part is fixedly arranged in the bearing platform, is obliquely arranged between the top surface and side of the bearing platform in a penetrating manner, serves as a positioning part and penetrates through the positioning through hole in each precast column segment. The invention also discloses an assembling and positioning process of the bearing platform cable-stayed precast assembled column bearing platform structure. The structure and the process have the following beneficial effects: the above structural design and process arrangement are adopted, the prestressed part serves as a positioning part and the positioning through holes are reserved in the precast column segments, thus conveniently realizing accurate positioning between the first precast column segment and the bearing platform as well as between the precast column segments through sleeve fit of the positioning part and the positioning through holes.
Description
Technical field
The present invention relates to the construction of road and bridge technical field, relate in particular to a kind of cushion cap and tiltedly open formula precast assembly column suspended deck structure.The invention still further relates to cushion cap and tiltedly open the assembly unit positioning process of formula precast assembly column suspended deck structure.
Background technology
Pin-connected panel column (or bridge pier) invention is compared with the cast in situs construction technology or the integral prefabricated construction technology of maturation for a long time, but it has that scale is prefabricated, transportation and easy for installation, advantage such as the construction period is short.But for a long time, the practical application of assembly pier is very limited, and one of its obstacle is the complicacy and the high-tech requirement of assembling construction process.
As shown in Figure 1; CN85202839 discloses a kind of " pin-connected panel precast member for reinforcing bar concrete ", is rectangle hollow thin-wall reinforced concrete structure, is provided with the circular hole that passes reinforcing bar around this member; The cross section interior corners becomes splayed, and four jiaos of said member are provided with fin.Be furnished with the hole of wearing reinforcing bar around the member, available steel fuse it, apply prestressing force, constitute bridge pier.This member is provided with fin for four jiaos, thereby has increased the bridge pier flexural strength, reduces the site operation amount to greatest extent, and accelerating construction progress helps realizing design standardization, makes the member batch production, site assembly mechanization.
The document only discloses the structure of prefabricated component, but does not show the annexation between prefabricated component and the cushion cap clearly.Need between each member to locate afterwards earlier to install though this article has also been mentioned, do not introduce how to realize the location in the assembling construction between each parts in detail.
As shown in Figure 2; CN101413250 discloses a kind of " the tenon head type method of attachment of bridge spanning the sea precast pier and cushion cap ", and concrete steps are: 1) prefabricated pier shaft 3 in the precasting yard by land, and be dragged to the scene with transport barge; 2) pour into a mould cushion cap 4 and cushion cap tenon concrete simultaneously; 3) lay pier pin weather strip 5 in prefabricated pier shaft 3 lower ends with the place, slit that is connected of cushion cap 4, utilize marine crane barge that prefabricated pier shaft 3 is lifted on the cushion cap, and accomplish the location; 4) pier shaft 3 and cushion cap tenon be connected the cast-in-place seam concrete 2 of place, slit cast, accomplish being connected of prefabricated pier shaft 3 and cushion cap 4.The method of attachment of this bridge pier and cushion cap has improved the stress of connecting portion, has mainly solved the shearing slip problem in traditional connection, has improved the durability of joint ability.
Though the document discloses a kind of special annexation between bridge pier and the cushion cap; Also mentioned between pier shaft and the cushion cap, all needed between each prefabricated pier shaft to locate afterwards earlier and install; But do not introduce the location technology in the assembling construction in detail, and mention that the bridge pier positioning difficulty is very big.
Because the design specifications of column (bridge pier) increases day by day; The deadweight of the concrete structure of similar aforementioned prefabricated units or pier shaft is approximately all at tens tons even ton up to a hundred in the actual engineering; Therefore in assembling construction, how to let these are bulky, deadweight is huge structural member accurate location each other, be that those skilled in the art hopes the technical problem that solves always.
Summary of the invention
Because the above-mentioned defective of prior art, technical problem to be solved by this invention provides a kind of cushion cap that is easy to the assembly unit location and tiltedly opens formula precast assembly column suspended deck structure.
For realizing above-mentioned technical purpose, the invention provides a kind of cushion cap and tiltedly open formula precast assembly column suspended deck structure, comprise column and cushion cap; Said column is made up of some prefabricated stand column section assemblings; Be provided with positioning through hole in each said prefabricated stand column sections; Be set with the prestressing force parts in the said cushion cap, said prestressing force parts run through between the end face and side that is arranged on said cushion cap obliquely; The double keeper of doing of said prestressing force parts runs through in the positioning through hole that is arranged on each said prefabricated stand column sections.
Preferably, be fixedly connected through mortar or epoxy resin between each said prefabricated stand column sections.
Preferably, be fixedly connected through cast-in-situ concrete between each said prefabricated stand column sections.
Preferably, said prestressing force parts are prestress wire, and said prestress wire is anchored at the side of said cushion cap.
Another technical purpose of the present invention provides and a kind ofly locatees facility, cushion cap is tiltedly opened the assembly unit positioning process of formula precast assembly column suspended deck structure accurately.
For realizing above-mentioned technical purpose, the invention provides the assembly unit positioning process that a kind of cushion cap is tiltedly opened formula precast assembly column suspended deck structure, may further comprise the steps:
Preferably, after the step 3, step 4 applies prestressing force to said prestressing force parts.
Preferably, after the step 4, step 5 is fixedly connected each said prefabricated stand column sections through mortar or epoxy resin.
Preferably, after the step 4, step 5 is fixedly connected each said prefabricated stand column sections through cast-in-situ concrete.
Beneficial effect of the present invention:
Cushion cap of the present invention tiltedly opens formula precast assembly column suspended deck structure and assembly unit positioning process thereof because the arrangement of said structure design and processes; Adopt the double keeper of doing of prestressing force parts; And in each prefabricated stand column sections, reserved positioning through hole; Through sheathed cooperation the between keeper and the positioning through hole, realized between prefabricated stand column sections and the cushion cap expediently, the accurate orientation problem between prefabricated stand column sections and the prefabricated stand column sections, for good condition has been created in follow-up construction.
Below will combine accompanying drawing that the technique effect of design of the present invention, concrete structure and generation is described further, to understand the object of the invention, characteristic and effect fully.
Description of drawings
Fig. 1 is the sectional structure sketch map of a kind of pin-connected panel prefabricated units in the prior art.
Fig. 2 is the structural representation of a kind of precast pier and cushion cap connected mode in the prior art.
Fig. 3 is the structural representation that cushion cap of the present invention is tiltedly opened formula precast assembly column suspended deck structure one specific embodiment.
The specific embodiment
Embodiment 1:
As shown in Figure 3, cushion cap of the present invention is tiltedly opened formula precast assembly column suspended deck structure one specific embodiment, comprises column 1 and cushion cap 2 two large divisions, and both are fixedly connected and constitute the column suspended deck structure.
Anchoring has prestressing force parts 3 in the cushion cap 2, and prestressing force parts 3 are obliquely installed in cushion cap 2, and runs through the end face and the side of cushion cap 2.
Be equipped with prestressing force parts 3 in the positioning through hole 15 of each prefabricated stand column sections 11,12,13.The aperture of positioning through hole 15 is slightly larger than the diameter of prestressing force parts 3.
In the present embodiment, prestressing force parts 3 are prestress wire, are anchored at the side of cushion cap 2, and erect towards the direction that deviates from cushion cap 2.
Special character of the present invention is, with the prestressing force parts 3 double keepers of doing, runs through in the positioning through hole 15 that is arranged on each prefabricated stand column sections 11,12,13.
In the present embodiment, preferably, between cushion cap 2 and the prefabricated stand column sections 11, prefabricated stand column sections 11,12, between 13, reserve about 1 centimetre height, be fixedly connected through stem graftings such as mortar or epoxy resin seam.
Certainly, also need reinforcing bar to connect between above-mentioned each parts, this is that prior art is total, and this paper repeats no more.
Cushion cap of the present invention is tiltedly opened formula precast assembly column suspended deck structure; Utilize the positioning through hole on the prefabricated stand column sections to cooperate with the prestressing force parts of double as keeper; Solve prior art well for the accurate orientation problem in the lifting construction that solves, also had beneficial effects such as stressed good reliability, short construction period.
Column described in the present invention is being also referred to as " bridge pier ", " pier shaft " etc. in the art.Column suspended deck structure of the present invention can be applicable in the object of construction production such as bridge, elevated road.
Embodiment 2:
Cushion cap of the present invention is tiltedly opened the assembly unit positioning process of formula precast assembly column suspended deck structure; Be used for tiltedly opening the installation process of formula precast assembly column suspended deck structure at above-mentioned cushion cap; Realize between prefabricated stand column sections and the cushion cap, prefabricated stand column sections accurate location each other, may further comprise the steps:
Special character of the present invention is, the also double positioning element of doing of prestressing force parts 3.
In the lifting construction process, must guarantee that prestressing force parts 3 are located in the positioning through hole 15 of all prefabricated stand column sections 11,12,13.
After assembly unit was accurately located, step 4 applied prestressing force to prestressing force parts 3, and reaches designing requirement.
Afterwards, can also pass through stem graftings such as mortar or epoxy resin and stitch modes, be fixedly connected first joint prefabricated stand column sections 11 and cushion cap 2, reach each prefabricated stand column sections 11,12,13.
In other are implemented, also can be fixedly connected each prefabricated stand column sections through cast-in-situ concrete.
Cushion cap of the present invention is tiltedly opened the assembly unit positioning process of formula precast assembly column suspended deck structure; Utilize the positioning through hole on the prefabricated stand column sections to cooperate with the prestressing force parts of double as keeper; Solve prior art well for the accurate orientation problem in the lifting construction that solves, also had beneficial effects such as stressed good reliability, short construction period.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can design according to the present invention make many modifications and variation.Therefore, all technician in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (8)
1. a cushion cap is tiltedly opened formula precast assembly column suspended deck structure, comprises column and cushion cap; It is characterized in that: said column is made up of some prefabricated stand column section assemblings; Be provided with positioning through hole in each said prefabricated stand column sections; Be set with the prestressing force parts in the said cushion cap, said prestressing force parts run through between the end face and side that is arranged on said cushion cap obliquely; The double keeper of doing of said prestressing force parts runs through in the positioning through hole that is arranged on each said prefabricated stand column sections.
2. cushion cap as claimed in claim 1 is tiltedly opened formula precast assembly column suspended deck structure, it is characterized in that: be fixedly connected through mortar or epoxy resin between each said prefabricated stand column sections.
3. cushion cap as claimed in claim 1 is tiltedly opened formula precast assembly column suspended deck structure, it is characterized in that: be fixedly connected through cast-in-situ concrete between each said prefabricated stand column sections.
4. tiltedly open formula precast assembly column suspended deck structure like the arbitrary described cushion cap of claim 1 to 3, it is characterized in that: said prestressing force parts are prestress wire, and said prestress wire is anchored at the side of said cushion cap.
5. the described cushion cap of above-mentioned arbitrary claim is tiltedly opened the assembly unit positioning process of formula precast assembly column suspended deck structure, may further comprise the steps:
Step 1 fixedly installs the prestressing force parts on cushion cap; Said prestressing force parts run through between the end face and side that is arranged on said cushion cap obliquely; Wherein, said prestressing force parts are anchored at the side of said cushion cap;
Step 2, the first joint of lifting prefabricated stand column sections and fixed connection on said cushion cap; Said prestressing force parts are located in the positioning through hole of said first joint prefabricated stand column sections;
Step 3, repeating step two adds other prefabricated stand column sections to satisfy the column design requirement in the folding of hanging oneself of said first joint prefabricated stand column sections; Wherein, said prestressing force parts are located in the positioning through hole of all prefabricated stand column sections.
6. assembly unit positioning process as claimed in claim 5, wherein, after the step 3, step 4 applies prestressing force to said prestressing force parts.
7. assembly unit positioning process as claimed in claim 6, wherein, after the step 4, step 5 is fixedly connected each said prefabricated stand column sections through mortar or epoxy resin.
8. assembly unit positioning process as claimed in claim 6, wherein, after the step 4, step 5 is fixedly connected each said prefabricated stand column sections through cast-in-situ concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103889786A CN102493334A (en) | 2011-11-30 | 2011-11-30 | Bearing platform cable-stayed precast assembled column bearing platform structure and assembling and positioning process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103889786A CN102493334A (en) | 2011-11-30 | 2011-11-30 | Bearing platform cable-stayed precast assembled column bearing platform structure and assembling and positioning process thereof |
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| CN102493334A true CN102493334A (en) | 2012-06-13 |
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| CN2011103889786A Pending CN102493334A (en) | 2011-11-30 | 2011-11-30 | Bearing platform cable-stayed precast assembled column bearing platform structure and assembling and positioning process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040578A (en) * | 2015-07-29 | 2015-11-11 | 成都科创佳思科技有限公司 | Municipal bridge pier base |
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| CN101736698A (en) * | 2009-12-15 | 2010-06-16 | 中交路桥华北工程有限公司 | Accurate positioning method for cable-stayed bridge pylon cable guide pipe |
| KR20100071413A (en) * | 2008-12-19 | 2010-06-29 | 재단법인 포항산업과학연구원 | Pier with precast coping and construction method of the same |
| CN201560398U (en) * | 2009-12-15 | 2010-08-25 | 中交路桥华北工程有限公司 | Inner steel mould for accurately positioning tower column cable sleeves of cable-stayed bridge |
| CN101831875A (en) * | 2010-06-09 | 2010-09-15 | 中交第一公路勘察设计研究院有限公司 | Precast assembly process of prestressed concrete cylindrical hollow pier |
| CN101845795A (en) * | 2010-05-17 | 2010-09-29 | 广东省长大公路工程有限公司 | Cable-stayed cradle of adjustment-free cable tension long platform in construction of cable-stayed bridge |
| CN202323684U (en) * | 2011-11-30 | 2012-07-11 | 上海市城市建设设计研究总院 | Bearing platform inclined type prefabricated assembly column bearing platform structure |
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2011
- 2011-11-30 CN CN2011103889786A patent/CN102493334A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100071413A (en) * | 2008-12-19 | 2010-06-29 | 재단법인 포항산업과학연구원 | Pier with precast coping and construction method of the same |
| CN101736698A (en) * | 2009-12-15 | 2010-06-16 | 中交路桥华北工程有限公司 | Accurate positioning method for cable-stayed bridge pylon cable guide pipe |
| CN201560398U (en) * | 2009-12-15 | 2010-08-25 | 中交路桥华北工程有限公司 | Inner steel mould for accurately positioning tower column cable sleeves of cable-stayed bridge |
| CN101845795A (en) * | 2010-05-17 | 2010-09-29 | 广东省长大公路工程有限公司 | Cable-stayed cradle of adjustment-free cable tension long platform in construction of cable-stayed bridge |
| CN101831875A (en) * | 2010-06-09 | 2010-09-15 | 中交第一公路勘察设计研究院有限公司 | Precast assembly process of prestressed concrete cylindrical hollow pier |
| CN202323684U (en) * | 2011-11-30 | 2012-07-11 | 上海市城市建设设计研究总院 | Bearing platform inclined type prefabricated assembly column bearing platform structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105040578A (en) * | 2015-07-29 | 2015-11-11 | 成都科创佳思科技有限公司 | Municipal bridge pier base |
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Application publication date: 20120613 |