CN215052029U - Semi-assembled combined pier adopting ribbed steel pipe template - Google Patents
Semi-assembled combined pier adopting ribbed steel pipe template Download PDFInfo
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- CN215052029U CN215052029U CN202120356456.7U CN202120356456U CN215052029U CN 215052029 U CN215052029 U CN 215052029U CN 202120356456 U CN202120356456 U CN 202120356456U CN 215052029 U CN215052029 U CN 215052029U
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Abstract
The utility model relates to a semi-assembled combined pier adopting a ribbed steel pipe template, which comprises a prefabricated bearing platform and a pier body arranged on the top surface of the prefabricated bearing platform, wherein the pier body comprises a plurality of segmental prefabricated hollow piers which are vertically distributed side by side, and the connection between the segmental prefabricated hollow pier at the lowest side and the prefabricated bearing platform and between two adjacent segmental prefabricated hollow piers is realized through positioning connecting pieces; the segment prefabricated hollow pier comprises a prefabricated template and concrete poured inside the prefabricated template, the prefabricated template comprises a UHPC shell, a hollow steel pipe is coaxially and fixedly connected to the inner wall of the HUPC shell, and the concrete is poured inside the hollow steel pipe. The utility model relates to a rationally, not only effectively improve the efficiency of construction, improve the resistance to compression bearing capacity of pier moreover.
Description
The technical field is as follows:
the utility model relates to an adopt half assembled combination pier of ribbed steel pipe template.
Background art:
at present, the construction methods of the bridge pier mainly comprise cast-in-place and prefabricated assembly, but the two construction methods are inconvenient. In the construction process of the cast-in-place pier, a large number of templates need to be installed and removed, a higher pier needs to be gradually poured in sections, the construction progress is slow, and the construction quality is not easy to control; the prefabricated assembled pier is generally prefabricated in a full section and then assembled in a hoisting mode, large hoisting instruments and a large number of temporary supports are needed, the requirement on construction precision is high, and the cost generated in the whole construction process is high.
The utility model has the following contents:
the utility model aims at providing an adopt half assembled combination pier of ribbed steel pipe template, reasonable in design improves the efficiency of construction.
In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides an adopt half assembled combination pier of ribbed steel pipe template, includes prefabricated cushion cap and sets up the pier body at prefabricated cushion cap top surface, the pier body contains along vertical a plurality of sections prefabricated hollow pier that distribute side by side, is located between prefabricated hollow pier of the section of downside and the prefabricated cushion cap, realizes connecting through the positioning connection spare between two adjacent sections prefabricated hollow pier.
Furthermore, the segment prefabricated hollow pier comprises a prefabricated template and concrete poured inside the prefabricated template, the prefabricated template comprises a UHPC shell, and a hollow steel pipe is coaxially and fixedly connected to the inner wall of the UHPC shell.
Furthermore, a plurality of steel plate ribs which are uniformly distributed on the circumference are fixedly connected to the inner walls of the upper end and the lower end of the hollow steel pipe, and the steel plate ribs are vertically arranged.
Furthermore, a plurality of through holes are formed in the steel plate ribs from top to bottom.
Furthermore, the outer side wall of the hollow steel pipe is provided with a spiral winding stirrup.
Furthermore, the positioning connecting piece comprises a connecting steel pipe and a connecting steel bar; the upper end of the prefabricated bearing platform and the upper end of the segment prefabricated hollow pier are fixedly connected with a plurality of circumferentially and uniformly distributed connecting steel pipes which are vertically arranged; the lower end of the segment prefabricated hollow pier is fixedly connected with a plurality of connecting steel bars which are uniformly distributed in the circumferential direction, the positions of the connecting steel bars correspond to the positions of the connecting steel pipes, and the connecting steel bars stretch into the connecting steel pipes.
Furthermore, ultrahigh-performance mortar is poured into the connecting steel pipe.
Furthermore, ultrahigh-performance mortar is adopted for setting the mortar at the contact surface of the two adjacent sections of the prefabricated hollow pier and the contact surface of the section of the prefabricated hollow pier located at the lowest side and the prefabricated bearing platform.
Compared with the prior art, the utility model discloses following effect has: the utility model relates to a rationally, not only effectively improve the efficiency of construction, improve the resistance to compression bearing capacity of pier moreover.
Description of the drawings:
fig. 1 is an elevation view of an embodiment of the invention;
fig. 2 is a plan view of an embodiment of the present invention;
FIG. 3 is a schematic sectional view taken along line B-B in FIG. 1;
fig. 4 is a schematic cross-sectional view of C-C in fig. 1.
In the figure:
1-prefabricating a bearing platform; 2-hollow steel pipe; 3-steel plate ribs; 4-stirrup; 5-first connecting steel pipes; 6-UHPC outer shell; 7-connecting a steel bar; 8-prefabricating a hollow pier at the lower section; 9-prefabricating a hollow pier at the upper section; 10-ultra high performance mortar; 11-second connecting steel pipe.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the utility model relates to a semi-assembled combined pier adopting ribbed steel tube formwork, which comprises a prefabricated bearing platform 1 and a pier body arranged on the top surface of the prefabricated bearing platform 1, wherein the pier body comprises a plurality of segmental prefabricated hollow piers which are vertically distributed side by side, and the connection between the segmental prefabricated hollow pier at the lowest side and the prefabricated bearing platform 1 and between two adjacent segmental prefabricated hollow piers is realized through positioning connecting pieces; the segment prefabricated hollow pier comprises a prefabricated template and concrete 12 poured into the prefabricated template, the prefabricated template comprises a UHPC shell 6, a hollow steel pipe 2 is coaxially and fixedly connected to the inner wall of the UHPC shell 6, and the concrete 12 is poured into the hollow steel pipe 2.
In this embodiment, in order to make better connection between hollow steel pipe 2 and the post-cast concrete 12, the equal welded fastening in upper and lower both ends inner wall of hollow steel pipe 2 has a plurality of to be the steel sheet rib 3 of circumference equipartition, the vertical setting of steel sheet rib 3, steel sheet rib 3 is from last down having seted up a plurality of through-hole.
In this embodiment, in order to better connect the UHPC outer shell 6 and the hollow steel pipe 2, the outer side wall of the hollow steel pipe 2 is provided with the spiral-wound stirrup 4.
In this embodiment, the positioning connecting piece comprises a connecting steel pipe and a connecting steel bar 7; the upper end of the prefabricated bearing platform 1 is fixedly connected with a plurality of first connecting steel pipes 5 which are uniformly distributed in the circumferential direction; the upper end of the segment prefabricated hollow pier is fixedly connected with a plurality of second connecting steel pipes 11 which are uniformly distributed in the circumferential direction, the lower end of the segment prefabricated hollow pier is fixedly connected with a plurality of connecting steel bars 7 which are uniformly distributed in the circumferential direction, the positions of the first connecting steel pipes 5, the second connecting steel pipes 11 and the connecting steel bars 7 correspond to each other, and the segment prefabricated hollow pier at the lowest side and the prefabricated bearing platform 1 extend into the first connecting steel pipes 5 through the connecting steel bars 7 to realize the connection of the segment prefabricated hollow pier and the prefabricated bearing platform; and between the adjacent segment prefabricated hollow piers, the connecting steel bar 7 of the segment prefabricated hollow pier positioned on the upper side is inserted into the second steel pipe interior 11 of the segment prefabricated hollow pier positioned on the lower side, so that the connection between the two is realized. The segments and the prefabricated bearing platforms are connected by inserting steel bars into the steel pipes, so that the integrity and horizontal shear resistance of the spliced pier joint are improved.
In this embodiment, first connecting steel pipe 5, second connecting steel pipe 11 and the equal vertical setting of connecting rod iron 7, first connecting steel pipe 5 stretches out prefabricated cushion cap 1, and second connecting steel pipe 11 and connecting rod iron 7 all stretch out the prefabricated hollow pier of segment. The first connecting steel pipe 5 is installed in a pre-buried manner during the manufacturing of the prefabricated bearing platform; and the second connecting steel pipe 11 and the connecting steel bar 7 are welded on the inner wall of the hollow steel pipe 2. During construction, the connecting steel bar is inserted into the connecting steel pipe, and the connecting steel bar can be used as a temporary fixing measure to prevent the prefabricated template from turning on one side.
In this embodiment, in order to improve the joint strength between the connecting steel bar and the connecting steel pipe, the inside of the connecting steel pipe is filled with the ultra-high performance mortar.
In this embodiment, the contact surface between two adjacent segmental prefabricated hollow piers and the contact surface between the lowermost segmental prefabricated hollow pier and the prefabricated bearing platform are all set with ultra-high performance mortar 10.
In this embodiment, the UHPC is ultra-high performance concrete, and the UHPC case is a cylindrical case made of the ultra-high performance concrete, and the shape of the UHPC case is adapted to the shape of the hollow steel pipe and covers the outside of the hollow steel pipe.
The specific implementation process comprises the following steps: use two prefabricated hollow pier of section to constitute the pier body as the example, two prefabricated hollow pier of section are prefabricated hollow pier 9 of last section and lower section prefabricated hollow pier 8 respectively, during the construction:
(1) fixing the prefabricated bearing platform 1, coating ultrahigh-performance mortar 10 in the top surface of the prefabricated bearing platform 1 and a first connecting steel pipe 5 pre-embedded in the top surface of the prefabricated bearing platform 1, inserting a connecting steel bar 7, welding the lower end of a lower-section prefabricated hollow pier 8 on the hollow steel pipe 2, into the first connecting steel pipe 5, and positioning and assembling prefabricated templates of the prefabricated bearing platform 1 and the lower-section prefabricated hollow pier 8;
(2) after the prefabricated template of the lower-section prefabricated hollow pier 8 is installed, pouring common concrete 12 into the prefabricated template;
(3) coating ultrahigh-performance mortar 10 in the top surface of the lower-section prefabricated hollow pier 8 and the second connecting steel pipe 11, inserting a connecting steel bar 7, which is welded on the hollow steel pipe 2, at the lower end of the upper-section prefabricated hollow pier 9 into the second connecting steel pipe 11, and positioning and assembling the prefabricated template of the upper-section prefabricated hollow pier 9 and the lower-section prefabricated hollow pier 8;
(4) and after the prefabricated template of the upper-section prefabricated hollow pier 9 is installed, pouring common concrete 12 into the prefabricated template.
It should be noted that, if splicing of a plurality of segment prefabricated hollow piers is adopted, the steps (3) - (4) are repeated until the elevation is reached.
The utility model has the advantages that:
(1) the templates of the segmental prefabricated hollow pier are prefabricated uniformly, after the templates are installed, the internal concrete of the whole segment can be poured, and the construction efficiency is high;
(2) the prefabricated hollow bridge piers and the prefabricated bearing platforms of the segments and the adjacent prefabricated hollow bridge piers of the segments are restrained by the connecting steel bars and the connecting steel pipes, so that the prefabricated template can be effectively prevented from inclining laterally, more supporting measures are not required to be set up, and the construction efficiency is improved;
(3) the spiral stirrups are wound on the surfaces of the hollow steel pipes, and the inner sides of the hollow steel pipes are provided with ribs, so that better connection between the UHPC shell and the hollow steel pipes and between the hollow steel pipes and post-poured concrete can be ensured, and the UHPC shell and the hollow steel pipes are integrated to bear load together;
(4) compared with the common reinforced concrete with a full section, the hollow steel pipe can restrain the concrete and improve the compression-resistant bearing capacity of the pier; compared with steel pipe concrete, the UHPC outside the prefabricated template can well protect the hollow steel pipe from being corroded without more anticorrosion measures.
The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.
The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (8)
1. The utility model provides an adopt half assembled combination pier of ribbed steel pipe template, includes prefabricated cushion cap and sets up the pier body at prefabricated cushion cap top surface, its characterized in that: the pier body contains along vertical a plurality of sections prefabricated hollow pier that distribute side by side, is located between the prefabricated hollow pier of the section of downside and the prefabricated cushion cap, realizes connecting through positioning connection spare between two adjacent sections prefabricated hollow pier.
2. The semi-fabricated combined pier adopting the ribbed steel tube formwork as claimed in claim 1, wherein: the segment prefabricated hollow pier comprises a prefabricated template and concrete poured into the prefabricated template, the prefabricated template comprises a UHPC shell, and a hollow steel pipe is coaxially and fixedly connected to the inner wall of the UHPC shell.
3. The semi-fabricated combined pier adopting the ribbed steel tube formwork as claimed in claim 2, wherein: the inner walls of the upper end and the lower end of the hollow steel pipe are fixedly connected with a plurality of steel plate ribs which are uniformly distributed on the circumference, and the steel plate ribs are vertically arranged.
4. The semi-fabricated combined pier adopting the ribbed steel tube formwork as claimed in claim 3, wherein: the steel plate ribs are provided with a plurality of through holes from top to bottom.
5. The semi-fabricated combined pier adopting the ribbed steel tube formwork as claimed in claim 2, wherein: the outer side wall of the hollow steel pipe is provided with a spiral winding stirrup.
6. The semi-fabricated combined pier adopting the ribbed steel tube formwork as claimed in claim 1, wherein: the positioning connecting piece comprises a connecting steel pipe and a connecting steel bar; the upper end of the prefabricated bearing platform and the upper end of the segment prefabricated hollow pier are fixedly connected with a plurality of circumferentially and uniformly distributed connecting steel pipes which are vertically arranged; the lower end of the segment prefabricated hollow pier is fixedly connected with a plurality of connecting steel bars which are uniformly distributed in the circumferential direction, the positions of the connecting steel bars correspond to the positions of the connecting steel pipes, and the connecting steel bars stretch into the connecting steel pipes.
7. The semi-fabricated combined pier adopting the ribbed steel tube formwork as claimed in claim 6, wherein: and ultrahigh-performance mortar is poured into the connecting steel pipe.
8. The semi-fabricated combined pier adopting the ribbed steel tube formwork as claimed in claim 1, wherein: and ultrahigh-performance mortar is adopted for setting slurry at the contact surface of the two adjacent sections of the prefabricated hollow pier and the contact surface of the lowermost section of the prefabricated hollow pier and the prefabricated bearing platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356456.7U CN215052029U (en) | 2021-02-09 | 2021-02-09 | Semi-assembled combined pier adopting ribbed steel pipe template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356456.7U CN215052029U (en) | 2021-02-09 | 2021-02-09 | Semi-assembled combined pier adopting ribbed steel pipe template |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215052029U true CN215052029U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120356456.7U Active CN215052029U (en) | 2021-02-09 | 2021-02-09 | Semi-assembled combined pier adopting ribbed steel pipe template |
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| Country | Link |
|---|---|
| CN (1) | CN215052029U (en) |
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2021
- 2021-02-09 CN CN202120356456.7U patent/CN215052029U/en active Active
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