CN216689076U - A prefabricated apron that is used for hollow mound top to pour construction - Google Patents
A prefabricated apron that is used for hollow mound top to pour construction Download PDFInfo
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- CN216689076U CN216689076U CN202220124793.8U CN202220124793U CN216689076U CN 216689076 U CN216689076 U CN 216689076U CN 202220124793 U CN202220124793 U CN 202220124793U CN 216689076 U CN216689076 U CN 216689076U
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Abstract
The utility model discloses a prefabricated cover plate for hollow pier top pouring construction, wherein the prefabricated cover plate is arranged at the top of an inner cavity of a pier, the prefabricated cover plate comprises a group of prefabricated plates containing a manhole and prefabricated plates without the manhole, which are arranged side by side, the prefabricated plates containing the manhole comprise profile steel and concrete, the profile steel is embedded in the concrete, the concrete is not arranged on the profile steel corresponding to the manhole, the prefabricated plates without the manhole are steel bars and concrete to form a plate structure, and lifting lugs are arranged on the prefabricated plates containing the manhole and the prefabricated plates without the manhole. The reinforced concrete cover plate and the section steel concrete cover plate are arranged according to different positions, concrete is not wrapped at the manhole of the section steel concrete cover plate, and the section steel can be cut at a later stage to get through the manhole; the single cover plate has small dead weight, is convenient to hoist and has clear and reasonable stress; the cover plate section steel and the reinforcing steel bars extend out to be welded with main reinforcements of the bridge pier respectively, and meanwhile, the post-cast concrete and the cover plate can form integral stress without arranging other supports and bottom dies, so that the construction safety is improved.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a prefabricated cover plate for hollow pier top pouring construction.
Background
The hollow pier has the characteristics of better structural rigidity and strength, light dead weight and large inner cavity section, and is very common in high bridge construction. Because there is the inner chamber in the pier, need set up the die block and support upper portion concrete wet weight at pier top hollow section when pouring the pier top concrete, the manhole still needs to be reserved simultaneously to the die block proof strength, and this is high to design and construction requirement.
For the pier top pouring concrete construction, the bottom die is generally an integral concrete cover plate or a steel structure bracket such as profile steel and the like is adopted in the traditional construction method; if the integral concrete cover plate is adopted, the requirement on hoisting is high due to the large volume and the large self weight, the embedded steel bars exist on the pier top, the construction space is limited, the integral adjustment of the cover plate is difficult, and the construction is not facilitated; if adopt the support, need pre-buried bracket in the cavity, and have the later stage and demolish the difficulty, the big scheduling problem of construction risk.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a prefabricated cover plate for hollow pier top pouring construction so as to achieve the purposes of simple and efficient construction.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
this a prefabricated apron that is used for hollow mound top to water construction, the top at pier inner chamber is established to prefabricated apron, prefabricated apron includes a set of manhole prefabricated plate that contains and does not contain the manhole prefabricated plate that sets up side by side, contain the manhole prefabricated plate and include shaped steel and concrete, shaped steel is pre-buried to be established in the concrete, corresponds the manhole position on the shaped steel and does not set up the concrete, it is reinforcing bar and concrete formation plate structure not to contain the manhole prefabricated plate, contain the manhole prefabricated plate and do not contain and all be equipped with the lug on the manhole prefabricated plate.
Further:
the end part of the section steel is arranged to extend out of the concrete of the manhole-containing precast slab.
The concrete containing the manhole prefabricated slab is provided with embedded steel bars, the embedded steel bars are arranged close to the manhole, and one ends of the embedded steel bars extend out of the concrete.
And the lifting lugs on the manhole-containing prefabricated plate are welded on the profile steel.
And the end part of the steel bar of the precast slab without the manhole is extended.
The precast slabs containing the manholes and the precast slabs without the manholes are rectangular slabs with the same size and specification.
Compared with the prior art, the utility model has the following advantages: the prefabricated cover plate for the hollow pier top pouring construction is reasonable in design, the segmented concrete cover plate is adopted, the reinforced concrete cover plate and the section steel concrete cover plate are arranged according to different positions, concrete is not wrapped at the manhole of the section steel concrete cover plate, and section steel can be cut at a later stage to open the manhole; the single cover plate has small dead weight, is convenient to hoist and has clear and reasonable stress; the cover plate profile steel and the reinforcing steel bars extend out to be welded with main bridge pier ribs respectively, and meanwhile, the post-cast concrete and the cover plate can form integral stress without arranging other supports and bottom moulds, so that the construction safety is improved, and the construction is simple, convenient and efficient.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
figure 1 is a schematic diagram of the structure of a prefabricated manhole cover plate according to the present invention.
Fig. 2 is a schematic top view of fig. 1.
Figure 3 is a schematic diagram of the structure of the prefabricated cover plate without manhole.
Fig. 4 is a schematic top view of fig. 3.
Fig. 5 is a schematic elevational view of the arrangement of the preformed cover of the present invention.
FIG. 6 is a schematic plan view of the prefabricated cover panel of the present invention.
In the figure:
1. the prefabricated steel plate comprises profile steel, a manhole, a pre-embedded steel bar, a lifting lug, a concrete, a steel bar, a prefabricated cover plate structure, a pier top concrete, a pier inner cavity, a section steel, a prefabricated plate with the manhole, a prefabricated plate without the manhole, a prefabricated plate with the pier inner cavity and a prefabricated plate with the pier, wherein the section steel, the manhole, the pre-embedded steel bar, the lifting lug, the concrete, the prefabricated plate with the pier, the steel bar, the prefabricated plate with the pier, the prefabricated plate, the pier top concrete, the pier top, the pier inner cavity, the section steel, the prefabricated plate with the manhole, and the prefabricated plate without the manhole.
Detailed Description
The following description of the embodiments of the present invention will explain the present invention in further detail by referring to the accompanying drawings.
As shown in fig. 1 to 6, the prefabricated cover plate for the hollow pier top pouring construction is arranged at the top of an inner cavity 10 of a pier, and the prefabricated cover plate structure 7 comprises a group of prefabricated plates 12 containing a manhole and a prefabricated plate 13 not containing the manhole, which are arranged side by side, wherein one prefabricated plate is arranged, and the other prefabricated plates are prefabricated plates not containing the manhole.
Contain the manhole prefabricated plate and include shaped steel 1 and concrete 5, the shaped steel is pre-buried to be established in the concrete, corresponds the manhole position on the shaped steel and does not set up the concrete, does not contain the manhole prefabricated plate and forms the plate structure for reinforcing bar and concrete, contains the manhole prefabricated plate and all is equipped with lug 4 on the manhole prefabricated plate.
The method comprises the following steps that a segmented concrete cover plate is adopted, a reinforced concrete cover plate and a section steel concrete cover plate are arranged according to different positions, concrete is not wrapped at the manhole of the section steel concrete cover plate, and section steel can be cut at a later stage to open the manhole 2; the single cover plate has small dead weight, convenient hoisting and clear and reasonable stress.
The end part of the profile steel extends out of concrete containing the manhole precast slab, embedded steel bars 3 are arranged in the concrete containing the manhole precast slab, the embedded steel bars are arranged close to the manhole, one ends of the embedded steel bars extend out of the concrete, and the inner ends of the embedded steel bars are arranged near the manhole and bent; and the end of the steel bar 6 without the manhole precast slab is extended.
The cover plate section steel and the reinforcing steel bars respectively extend out to be welded with the main reinforcements of the bridge pier, and meanwhile, the post-cast concrete and the cover plate can form integral stress without arranging other supports and bottom moulds, so that the construction safety is improved, and the construction is simple, convenient and efficient.
A lifting lug 4 on the prefabricated plate containing the manhole is welded on the profile steel; lifting lugs without the manhole precast slab are embedded in concrete; the prefabricated plate containing the manhole and the prefabricated plate not containing the manhole are rectangular plates with the same size and specification; the hoisting construction is convenient.
The construction process comprises the following steps:
firstly, prefabricating a manhole cover plate and a manhole-free cover plate in advance according to the size of a pier top hollow section before pouring of pier concrete 8 of a pier 9; the manhole cover plate is embedded with steel bars at the periphery of a manhole, so that the manhole cover plate and concrete poured on the pier top can be better integrated. The cover plate is hoisted in place before the pier top concrete is poured, the extending reinforcing steel bars and the profile steel are welded with the pier top main reinforcement, then the concrete between the pier top and the cover plate can be poured firstly according to the construction requirement, the rest part is poured after the cover plate and the pier are integrated, and the pouring can also be directly finished at one time. After the mound top concrete reaches intensity, cut the shaped steel that shelters from through reserving the manhole, cutting shaped steel 11 makes the manhole link up, accomplish whole construction flow. The cover plate and the poured concrete form integral common stress, the bottom die does not need to be detached, meanwhile, the construction period can be shortened by prefabricating and manufacturing the blocks, the hoisting risk can be reduced, the construction safety is improved, and the construction is simple, convenient and efficient.
The utility model fully considers the bearing capacity and the manhole reservation, has reasonable design and simple structure, can be prefabricated in advance and effectively saves the construction period; the cover plate is divided into blocks according to requirements, so that the size is small, the field construction and hoisting are facilitated, the pier top construction working face is narrow, and the position of the cover plate is convenient to adjust; after pouring is finished, the prefabricated cover plate and the pier top post-poured concrete form a whole, the whole safety and the whole stability are improved, and a support and a template do not need to be additionally detached.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The utility model is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the utility model is not limited by the above-mentioned manner, and it is within the scope of the utility model to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (6)
1. The utility model provides a prefabricated apron that is used for hollow mound top to pour construction, prefabricated apron is established at the top of pier inner chamber, its characterized in that: prefabricated apron includes a set of manhole prefabricated plate that contains and does not contain the manhole prefabricated plate that sets up side by side, contain the manhole prefabricated plate and include shaped steel and concrete, and the shaped steel is pre-buried to be established in the concrete, corresponds the manhole position on the shaped steel and does not set up the concrete, it forms the plate structure for reinforcing bar and concrete to not contain the manhole prefabricated plate, contain the manhole prefabricated plate and all be equipped with the lug on not containing the manhole prefabricated plate.
2. The prefabricated cover plate for hollow pier top pouring construction according to claim 1, wherein: the end part of the section steel is arranged to extend out of the concrete of the manhole-containing precast slab.
3. The prefabricated cover plate for hollow pier top pouring construction according to claim 1, wherein: the concrete containing the manhole prefabricated slab is provided with embedded steel bars, the embedded steel bars are arranged close to the manhole, and one ends of the embedded steel bars extend out of the concrete.
4. The prefabricated cover plate for hollow pier top pouring construction according to claim 1, wherein: and the lifting lugs on the manhole-containing prefabricated plate are welded on the profile steel.
5. The prefabricated cover plate for hollow pier top pouring construction according to claim 1, wherein: and the end part of the steel bar of the precast slab without the manhole is extended.
6. The prefabricated cover plate for hollow pier top pouring construction according to claim 1, wherein: the prefabricated plate containing the manhole and the prefabricated plate not containing the manhole are rectangular plates with the same size and specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220124793.8U CN216689076U (en) | 2022-01-18 | 2022-01-18 | A prefabricated apron that is used for hollow mound top to pour construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220124793.8U CN216689076U (en) | 2022-01-18 | 2022-01-18 | A prefabricated apron that is used for hollow mound top to pour construction |
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| Publication Number | Publication Date |
|---|---|
| CN216689076U true CN216689076U (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220124793.8U Active CN216689076U (en) | 2022-01-18 | 2022-01-18 | A prefabricated apron that is used for hollow mound top to pour construction |
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| CN (1) | CN216689076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110437A (en) * | 2022-08-12 | 2022-09-27 | 中国十九冶集团有限公司 | Construction method of bottom template of solid section of hollow thin-wall pier |
-
2022
- 2022-01-18 CN CN202220124793.8U patent/CN216689076U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110437A (en) * | 2022-08-12 | 2022-09-27 | 中国十九冶集团有限公司 | Construction method of bottom template of solid section of hollow thin-wall pier |
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