CN110820605B - Airtight nondestructive formula bridge jacking platform of hot melt adhesive - Google Patents
Airtight nondestructive formula bridge jacking platform of hot melt adhesive Download PDFInfo
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- CN110820605B CN110820605B CN201911080475.5A CN201911080475A CN110820605B CN 110820605 B CN110820605 B CN 110820605B CN 201911080475 A CN201911080475 A CN 201911080475A CN 110820605 B CN110820605 B CN 110820605B
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- platform
- hot melt
- steel platform
- melt adhesive
- wall
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
Abstract
The invention relates to a hot melt adhesive airtight nondestructive bridge jacking platform, wherein a lifting platform is arranged on a pier stud, and a support is arranged at the top end of the pier stud; the device comprises a steel platform sleeved outside a pier column, wherein the steel platform is connected to the outer wall surface of the pier column through a group of perfusion adhesives which are subjected to hot melting adhesion by a hot melting mechanism; the steel platform comprises a closed housing sleeved on the outer wall of the pier stud, a hot melt adhesive filling gap is formed between the closed housing and the outer wall of the pier stud, a hot melt mechanism is arranged in the filling gap, and a top steel platform supporting plate with the inner diameter smaller than the maximum diameter of the pier stud is arranged at the top end of the closed housing; the outer wall of the closed housing is also provided with a plurality of annular steel platform transverse rib plates in an array manner, and a plurality of steel platform longitudinal rib plates are arranged between the adjacent platform transverse rib plates; the structure of the device overcomes the defect that the original steel hoop platform cannot be tightly attached to the pier stud, and has low cost, easy installation, safety and reliability.
Description
Technical Field
The invention relates to bridge reinforcing support jacking equipment in the field of highway traffic, in particular to a hot melt adhesive closed lossless bridge jacking platform.
Background
The support is a force transmission component of an upper structure and a lower structure of the bridge, and transmits acting force of upper load to a bridge pier. The service life (regulated by a standard for 15 years) of the support is shorter than that of a main structure of the bridge (50-100 years), and the support needs to be replaced when the support is damaged. The support is usually replaced by jacking the bridge, and the bridge jacking platform is key equipment.
The traditional bridge jacking platform is usually formed by a cover beam or a temporary built bracket or a steel hoop method. During the actual use, above-mentioned traditional bridge jacking platform mainly has following problem:
1. when the bridge pier is high or a soft foundation exists, the erection of the support is unreliable and uneconomical;
2. because construction quality problem, circular pier is not standard circular, and there is the space between the circular steel staple bolt of preparation, when jacking construction, there is stress concentration in the pier stud, causes the pier stud concrete damage, peels off, causes the pier stud structure impaired, influences structure safety.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical problem that the reliability of an external connection support is poor in the prior art is solved, and the hot melt adhesive closed lossless bridge jacking platform is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a hot melt adhesive closed nondestructive bridge jacking platform is characterized in that the jacking platform is mounted on a pier, and a support is arranged at the top end of the pier; the steel platform is connected to the outer wall surface of the pier column through a group of hot melt adhesives which are subjected to hot melt adhesion by a hot melt mechanism; the steel platform comprises a closed housing sleeved on the outer wall of the pier stud, a filling gap is formed between the closed housing and the outer wall of the pier stud, a hot melting mechanism is arranged in the filling gap and comprises a heating ring capable of generating heat, a top steel platform supporting plate with the inner diameter smaller than the maximum diameter of the pier stud is arranged at the top end of the closed housing, and the top steel platform supporting plate is used for contacting with the top end of the pier stud; the outer wall of the closed housing is also provided with a plurality of annular steel platform transverse rib plates in an array manner, and a plurality of steel platform longitudinal rib plates are arranged between the adjacent steel platform transverse rib plates; the invention improves the direct contact of the traditional steel ferrule with the pier stud into soft hot melt adhesive, and solves the problem that the traditional rigid jacket causes damage to the wall surface of the irregular pier stud through soft bonding contact.
As a further improvement of the present invention, the heating ring comprises a plurality of heating wires arranged in an array in the filling gap; the heating wire heats evenly, and stability is strong.
As a further improvement of the invention, the heating ring is an electric blanket wound in a cylindrical shape, and the heating wire is arranged in the electric blanket in a zigzag shape; adopt winding arrangement, compare in direct heating wire winding, it is low to bring the possibility of damage to the heating wire, and it is more convenient to use.
As a further improvement of the invention, the hot melting mechanism comprises a heat-conducting inner shell which is concentrically nested in the closed housing, and a hot melt adhesive filling gap is arranged between the inner wall of the heat-conducting inner shell and the outer wall of the pier stud; the heating ring is arranged between the outer wall of the heat-conducting inner shell and the inner wall of the closed housing; the separation of hot melt adhesive and heating mechanism has been realized to the heat conduction inner shell, has reduced the hot melt adhesive to heating mechanism's adhesion, has reduced the dismantlement degree of difficulty in the construction later stage, has promoted the possibility of recycling.
As a further improvement of the invention, the bottom of the heat-conducting inner shell is connected with an annular connecting plate, and the connecting plate is concentrically and fixedly connected with the steel platform transverse rib plate at the bottommost part of the steel platform transverse rib plate array; the connecting plate provides a heat conduction inner shell and a whole steel platform centering fixed switching mechanism, and the uniformity of the hot melt adhesive filling thickness is guaranteed.
As a further improvement of the invention, a connecting sleeve is arranged on the excircle of the connecting plate, the connecting sleeve is fixed with the longitudinal rib plate of the steel platform through a connecting pin, and the connecting plate and the heat-conducting inner shell are hoisted through the fixing of the connecting sleeve and the transverse rib plate of the steel platform; the connecting sleeve enables the connecting plate to be detached on the side of the steel platform, and the connecting sleeve is convenient to mount and detach.
As a further improvement of the invention, the bottom of the connecting plate is also fixed with an annular rubber baffle, and the inner ring of the rubber baffle is contacted with the outer wall of the pier column; the glue baffle plate can effectively prevent the leakage of the hot melt adhesive and ensure the construction environment.
The invention has the beneficial effects that:
the structure of the device overcomes the defect that the original steel hoop platform cannot be tightly attached to the pier stud, and has low cost, easy installation, safety and reliability.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of a steel platform;
FIG. 2 is a top view of a steel platform;
fig. 3 is a schematic structural diagram of the electric blanket.
In the figure: 1. pier studs; 2. hot melt adhesive; 3. a support; 4. a top steel platform support plate; 5. longitudinal rib plates of the steel platform; 6. a steel platform transverse rib plate; 7. a thermally conductive inner shell; 8. connecting sleeves; 9. a connecting pin; 10. a connecting plate; 11. a glue blocking plate; 12. an electric blanket.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1 and 2, the invention relates to a hot melt adhesive closed nondestructive bridge jacking platform, which is mounted on a pier stud, wherein a support is arranged at the top end of the pier stud, and the jacking platform is used for lifting the support at the top of the pier stud;
when the structure is installed, the glue blocking plate is communicated with the connecting plate, the heat conduction inner shell on the connecting plate is sleeved on the pier stud, sufficient hot melt adhesive is filled in the heat conduction inner shell, and the electric blanket is wound outside the heat conduction inner shell, as shown in figure 3, the electric heating wire is arranged in the electric blanket in a zigzag manner; then hoisting the steel platform to the outside of the heat-conducting inner shell, wherein the steel platform comprises a closed housing, the closed housing is sleeved on the electric blanket and the outside of the heat-conducting inner shell, a top steel platform supporting plate is arranged at the top of the closed housing, the inner diameter of the top steel platform supporting plate is smaller than the outer diameter of a pier stud, the whole closed housing is hung on the pier stud through the top steel platform supporting plate, in order to ensure the strength, a plurality of steel platform transverse rib plates are arranged outside the closed housing in an array mode, and steel platform longitudinal rib plates are arranged between the steel platform transverse rib plates; after the hoisting is completed, the bottom steel platform transverse rib plate is in contact with the connecting plate at the bottom of the heat-conducting inner shell, the connecting sleeve is sleeved outside the steel platform, the connecting sleeve is fixed on the steel platform longitudinal rib plate through the connecting pin, the steel platform and the heat-conducting inner shell structure are fixed mutually, the hot melt adhesive is heated through the electric blanket at last, the steel platform is fixed in an adhesion mode relative to the pier stud, the steel platform is installed, jacking of the support can be achieved through the steel platform at last, replacement is achieved, after replacement is completed, the glue blocking plate is removed, the hot melt adhesive is heated through the electric blanket, the hot melt adhesive is cleaned simultaneously, the connecting pin is removed, the steel platform is removed finally, and the replacement process of the support is completed.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A hot melt adhesive closed nondestructive bridge jacking platform is characterized in that the jacking platform is mounted on a pier, and a support is arranged at the top end of the pier; the method is characterized in that: the steel platform is connected to the outer wall surface of the pier column through a group of hot melt adhesives which are subjected to hot melt adhesion by a hot melt mechanism; the steel platform comprises a closed housing sleeved on the outer wall of the pier stud, a filling gap is formed between the closed housing and the outer wall of the pier stud, a hot melting mechanism is arranged in the filling gap and comprises a heating ring capable of generating heat, a top steel platform supporting plate with the inner diameter smaller than the maximum diameter of the pier stud is arranged at the top end of the closed housing, and the top steel platform supporting plate is used for contacting with the top end of the pier stud; the outer wall of the closed housing is further provided with a plurality of annular steel platform transverse rib plates in an array mode, and a plurality of steel platform longitudinal rib plates are arranged between every two adjacent steel platform transverse rib plates.
2. The hot melt adhesive closed lossless bridge jacking platform as claimed in claim 1, wherein: the heating ring comprises a plurality of heating wires arranged in an array in the filling gap.
3. The hot melt adhesive closed lossless bridge jacking platform as claimed in claim 2, wherein: the heating ring is a cylindrical wound electric blanket, and the electric heating wire is arranged in the electric blanket in a zigzag shape.
4. The hot melt adhesive closed lossless bridge jacking platform as claimed in claim 1, wherein: the hot melting mechanism comprises a heat-conducting inner shell which is concentrically nested in the closed housing, and a hot melt adhesive filling gap is arranged between the inner wall of the heat-conducting inner shell and the outer wall of the pier stud; the heating ring is arranged between the outer wall of the heat-conducting inner shell and the inner wall of the closed housing.
5. The hot melt adhesive closed lossless type bridge jacking platform as claimed in claim 4, wherein: the bottom of the heat-conducting inner shell is connected with an annular connecting plate, and the connecting plate is concentrically and fixedly connected with the steel platform transverse rib plate at the bottommost part of the steel platform transverse rib plate array.
6. The hot melt adhesive closed lossless bridge jacking platform as claimed in claim 5, wherein: the outer circle of the connecting plate is provided with a connecting sleeve, the connecting sleeve is fixed with the longitudinal rib plate of the steel platform through a connecting pin, and the connecting plate and the heat-conducting inner shell are hoisted through the fixing of the connecting sleeve and the transverse rib plate of the steel platform.
7. The hot melt adhesive closed lossless bridge jacking platform as claimed in claim 5, wherein: an annular rubber baffle is further fixed at the bottom of the connecting plate, and the inner ring of the rubber baffle is in contact with the outer wall of the pier column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911080475.5A CN110820605B (en) | 2019-11-07 | 2019-11-07 | Airtight nondestructive formula bridge jacking platform of hot melt adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911080475.5A CN110820605B (en) | 2019-11-07 | 2019-11-07 | Airtight nondestructive formula bridge jacking platform of hot melt adhesive |
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| Publication Number | Publication Date |
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| CN110820605A CN110820605A (en) | 2020-02-21 |
| CN110820605B true CN110820605B (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911080475.5A Active CN110820605B (en) | 2019-11-07 | 2019-11-07 | Airtight nondestructive formula bridge jacking platform of hot melt adhesive |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113136793A (en) * | 2021-04-30 | 2021-07-20 | 四川省交通勘察设计研究院有限公司 | Novel steel structure capping beam and construction method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU573556A1 (en) * | 1975-12-30 | 1977-09-25 | Челябинское Специальное Конструкторское Бюро Главмостостроя | Suspended scaffolding |
| KR100991190B1 (en) * | 2010-06-29 | 2010-11-02 | (주)수연중공업 | The bridge inspection and the repair method for which a circular travelling rail mobile bridge inspection car and this were used |
| CN202337949U (en) * | 2011-11-17 | 2012-07-18 | 上海先为土木工程有限公司 | Bridge jacking device |
| CN102518050A (en) * | 2011-12-29 | 2012-06-27 | 江苏华通工程检测有限公司 | Operation platform for replacing support saddle of bridge |
| CN102733320B (en) * | 2012-06-21 | 2014-08-06 | 河海大学 | Pier annular bracket type column embracing beam for jacking bridge |
| CN204418036U (en) * | 2015-01-13 | 2015-06-24 | 重庆桥都桥梁技术有限公司 | Crawler type reducing anchor ear |
| CN105421245B (en) * | 2015-12-18 | 2017-08-25 | 江苏兆通工程技术有限公司 | Bent cap is without support steel hoop method construction technology |
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