CN212175458U - Prefabricated bent cap and track traffic elevated station hall layer frame thereof - Google Patents
Prefabricated bent cap and track traffic elevated station hall layer frame thereof Download PDFInfo
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- CN212175458U CN212175458U CN201921638960.5U CN201921638960U CN212175458U CN 212175458 U CN212175458 U CN 212175458U CN 201921638960 U CN201921638960 U CN 201921638960U CN 212175458 U CN212175458 U CN 212175458U
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Abstract
The utility model provides a prefabricated bent cap and track traffic elevated station hall layer frame thereof, this bent cap include the bent cap body, the bent cap body is provided with a plurality of grout sleeves with the junction of first floor post, vertically be provided with a plurality of recesses along on the bent cap body, transversely be provided with a plurality of first prestressing force pipelines along on the bent cap body, first prestressing force pipeline all runs through the recess is traversed and is set up on the bent cap body. The utility model discloses a prefabricated bent cap is unified to be makeed in the mill, and whole fortune to the scene after having made is accomplished the construction through the mode of assembling to reduced the engineering time at scene widely, reduced the site work personnel, reduced the site template volume, greatly shortened construction cycle.
Description
Technical Field
The utility model belongs to the technical field of the track traffic, concretely relates to prefabricated bent cap and track traffic elevated station hall layer frame thereof.
Background
The rail transit has the advantages of large transportation capacity, high speed and the like, is widely popularized, all railway transit elevated stations are constructed by a cast-in-place method at present, the civil engineering construction period is averagely 18 months, the period is long, a large amount of manpower and material resources are consumed, the whole engineering cost is increased, in addition, a large amount of supports need to be erected by the cast-in-place construction method, the risk of support collapse exists, the safety coefficient is not high in the construction process, and a large amount of material waste can be caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect, the utility model provides a in order to solve above-mentioned problem, the reduction of erection time that can be great practices thrift the cost.
The utility model discloses realize according to following technical scheme:
a prefabricated bent cap comprises a bent cap body, a plurality of grouting sleeves are arranged at the joint of the bent cap body and a first-layer column,
the bent cap comprises a bent cap body and is characterized in that a plurality of grooves are longitudinally formed in the bent cap body, a plurality of first prestressed pipelines are transversely arranged on the bent cap body, and the first prestressed pipelines penetrate through the grooves and are transversely arranged on the bent cap body.
As a further improvement, a plurality of second prestressed pipes are vertically arranged on the bent cap body along the upper edge, and the second prestressed pipes are transversely arranged on the bent cap body.
As a further improvement of the utility model, be provided with the spread groove that is used for being connected with the main longitudinal beam on the avris of bent cap body.
As a further improvement of the utility model, the side-looking shape of the bent cap body is ship-shaped.
As a further improvement of the present invention, the first prestressed pipe extends to a side wall of the bent cap body, and is connected to the prestressed anchorage device of the outer side wall of the bent cap body.
The utility model also provides a track traffic elevated station hall layer frame, include: the first-layer column, the prefabricated capping beam and the prefabricated main longitudinal beam are arranged on the upper layer of the prefabricated main longitudinal beam;
the prefabricated main longitudinal beam comprises a main longitudinal beam body, and a plurality of first prestressed pipelines are transversely arranged on the main longitudinal beam body along the longitudinal direction;
the top end face of the first-layer column is connected with the bottom of the prefabricated capping beam through concrete, and reinforcing steel bars connected with the grouting sleeves are reserved at the top of the first-layer column;
the prefabricated main longitudinal beam is connected between every two adjacent prefabricated capping beams;
the prefabricated capping beam is connected with the prefabricated main longitudinal beam through concrete, so that the first-layer column, the prefabricated capping beam and the prefabricated main longitudinal beam form a whole.
As a further improvement of the present invention, the cap beam body is provided with a first prestressed pipe communicated with the main longitudinal beam body to form a continuous prestressed pipe.
As a further improvement of the present invention, the second pre-stressed pipe is followed in one side of the bent cap body, longitudinally extends to the top of the bent cap body, and runs through to in the opposite side of the bent cap body.
As a further improvement of the utility model, there is the post-cast layer at the top of bent cap body in order to cover the second prestressed pipe.
Compared with the prior art, the beneficial effects of the utility model are that: the prefabricated capping beams are manufactured in a factory in a unified mode, all the prefabricated capping beams are transported to the site after being manufactured, and construction is completed in an assembling mode, so that the construction time of the site is greatly shortened, the site construction personnel are reduced, the quantity of the site templates is reduced, and the construction period is greatly shortened.
Drawings
The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:
FIG. 1 is a schematic sectional view of examples 1 to 2;
FIG. 2 is a schematic view of longitudinal connection of examples 1 to 2.
Description of the labeling: 1-prefabricating a cover beam; 11-a capping beam body; 12-a grout sleeve; 13-a groove; 14-a first pre-stressed pipe; 15-a second pre-stressed conduit; 16-a connecting trough; 17-prestressed anchorage means; 2, prefabricating a main longitudinal beam; 21-main longitudinal beam body; 3-a track traffic elevated station hall layer frame; 31-first column; 311-steel bar; 4-concrete; 41-post-pouring a concrete layer; 42-post-pouring layer; 5-reinforcing steel bars; 6-prestressed steel strands; 7-dry and hard mortar.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example one
The embodiment discloses a prefabricated bent cap 1, as shown in fig. 1, the prefabricated bent cap comprises a bent cap body 11, a plurality of grouting sleeves 12 are arranged at the joint of the bent cap body 11 and a first-layer column, a plurality of grooves 13 are longitudinally arranged on the bent cap body 11, so that the bent cap body 11 has a U-shaped opening cross section, the weight of the prefabricated bent cap 1 is reduced, a first prestressed pipeline 14 is transversely arranged on the bent cap body 11, and the first prestressed pipeline 14 penetrates through the grooves 13 and is transversely arranged on the bent cap body. Whole bent cap body 11 transversely does not set up the construction joint, ties up a small amount of reinforcing bars in U type opening to bent cap body 11 is the template, pours inside concrete, and size and the material of bent cap body 11 can be decided according to actual conditions, when the factory prefabrication, pre-buried grout sleeve 12 in advance and first prestressing force pipeline 14.
In the above embodiment, as shown in fig. 2, a plurality of second prestressed pipes 15 are longitudinally arranged on the capping beam body 11, and the second prestressed pipes 15 are transversely arranged on the capping beam body 11.
In the above embodiment, the side of the bent cap body 11 is provided with the connecting groove 16 used for being connected with the main longitudinal beam, the connecting groove 16 is located at the connecting position with the main longitudinal beam, during construction, the main longitudinal beam can be supported in the connecting grooves 16 of the two adjacent prefabricated bent caps 1, after the main longitudinal beam is hoisted in place, the main longitudinal beam is stressed in a simple supporting state, an additional midspan support is not needed to be arranged, after the main longitudinal beam on each axis is in place, beam gluten is pulled through and bound, only a small amount of concrete at the node needs to be poured, so that the construction waste can be reduced, and the construction period can be shortened.
In the above embodiment, the cap beam body 11 has a boat-like shape in side view.
In the above embodiment, the first pre-stressed duct 14 extends to a sidewall of the capping body 11 and is connected to the pre-stressed anchor 17 provided at the outer sidewall of the capping body 11.
Example two
The present embodiment provides a rail transit elevated station hall layer frame, as shown in fig. 1 and 2, including: the prefabricated capping beam comprises a first-layer column 31, a prefabricated capping beam 1 and a prefabricated main longitudinal beam 2 in the first embodiment, wherein the prefabricated main longitudinal beam 2 comprises a main longitudinal beam body 21, a first prestressed pipeline 14 is longitudinally and transversely arranged on the main longitudinal beam body 21, the top end face of the first-layer column 31 is connected with the bottom of the prefabricated capping beam 1 through concrete, and a reinforcing steel bar 311 connected with a grouting sleeve 12 is reserved at the top of the first-layer column 31; the prefabricated main longitudinal beam 2 is connected between every two adjacent prefabricated capping beams 1, the prefabricated capping beams 1 are connected with the prefabricated main longitudinal beam 2 through concrete 4, so that the first-layer column 31, the prefabricated capping beams 1 and the prefabricated main longitudinal beam 2 form a whole, wherein the first-layer column 31 can be cast in place and can also be of a prefabricated structure.
In the above embodiment, the first prestressed pipe 14 on the bent cap body 11 is communicated with the first prestressed pipe 14 on the main longitudinal beam body 21 to form a continuous prestressed pipe.
In the above embodiment, the second pre-stressed pipe 15 extends longitudinally from within one side of the capping beam body 11 to the top of the capping beam body 11 and through into the other side of the capping beam body 11.
In the above embodiment, the capping body 11 has a post-cast layer 42 on top to cover the second pre-stressed pipe 15.
The present embodiment is further explained with reference to the specific implementation process, as follows:
1. manufacturing a prefabricated bent cap 1 in a factory, and embedding a first prestressed pipeline 14 and a grouting sleeve 12 in a bent cap body 11 in advance during prefabrication;
2. manufacturing a prefabricated main longitudinal beam 2 in a factory, and embedding a first prestressed pipeline 14 in a main longitudinal beam body 11 during prefabrication;
3. after the first-layer column 31 is constructed, hoisting the prefabricated bent cap 1 on site;
4. after the prefabricated capping beam 1 is installed in place, adjusting the prefabricated capping beam in place through dry and hard mortar 7, constructing the connecting part of the first-layer column 31 and the prefabricated capping beam 1, namely grouting a grouting sleeve 12 reserved in the prefabricated capping beam 1, and enabling the first-layer column 31 and the prefabricated capping beam 1 to be connected to form rigid connection;
5. installing a prefabricated main longitudinal beam 2, binding top-layer steel bars of the longitudinal beam at the beam top, installing a second prestressed pipeline 15, hoisting the prefabricated main longitudinal beam 2 in place according to a traditional method during field assembly, stressing the prefabricated main longitudinal beam 2 in a simple-supported state, and wirelessly arranging an additional midspan support;
6. pouring a post-pouring layer 41;
7. and after the post-cast layer is maintained and the design strength is reached, tensioning the prestressed steel strand 6 in the prefabricated bent cap 1, tensioning the prestressed steel strand 6 in the prefabricated main longitudinal beam 2, and completing the construction of the rail transit station system 3.
To sum up, the utility model discloses following beneficial effect has:
1. the prefabricated capping beams are manufactured in a factory in a unified mode, all the prefabricated capping beams are transported to the site after being manufactured, and construction is completed in an assembling mode, so that the construction time of the site is greatly shortened, the site construction personnel are reduced, the quantity of the site templates is reduced, and the construction period is greatly shortened.
2. The prefabricated main longitudinal beam and the prefabricated cover beam form rigid connection through a post-pouring layer, and the longitudinal prestress arranged in the prefabricated main longitudinal beam has a self-resetting function under the action of an earthquake.
3. The prefabricated capping beam adopts a U-shaped opening section, the weight of the prefabricated capping beam is reduced, the whole prefabricated capping beam is not provided with a working seam transversely, a small amount of reinforcing steel bars are bound in the U-shaped opening section, the prefabricated capping beam is used as a template, internal concrete is poured, on the basis, the difficulty of hoisting the prefabricated capping beam in place is reduced, the prefabricated capping beam is used as an external mold, construction is convenient, the field operation amount is reduced, and the construction period can be shortened.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (9)
1. A prefabricated bent cap is characterized by comprising a bent cap body, a plurality of grouting sleeves are arranged at the joint of the bent cap body and a first-layer column,
the bent cap comprises a bent cap body and is characterized in that a plurality of grooves are longitudinally formed in the bent cap body, a plurality of first prestressed pipelines are transversely arranged on the bent cap body, and the first prestressed pipelines penetrate through the grooves and are transversely arranged on the bent cap body.
2. The precast capping beam of claim 1, wherein a plurality of second pre-stressed conduits are longitudinally disposed on the capping beam body, the second pre-stressed conduits being transversely disposed on the capping beam body.
3. Prefabricated capping beam according to claim 2, characterised in that attachment grooves for attachment to the main stringers are provided on the side edges of the capping beam body.
4. The precast capping beam of claim 3, wherein the capping beam body has a side view shape of a boat.
5. The precast capping beam of claim 4, wherein the first pre-stressed pipe extends to a sidewall of the capping beam body and is connected with a pre-stressed anchor provided at an outer sidewall of the capping beam body.
6. A rail transit elevated station hall layer frame, comprising: the primary column, the prefabricated capping beam and the prefabricated main longitudinal beam of any one of claims 2 to 5;
the prefabricated main longitudinal beam comprises a main longitudinal beam body, and a plurality of first prestressed pipelines are transversely arranged on the main longitudinal beam body along the longitudinal direction;
the top end face of the first-layer column is connected with the bottom of the prefabricated capping beam through concrete, and reinforcing steel bars connected with the grouting sleeves are reserved at the top of the first-layer column;
the prefabricated main longitudinal beam is connected between every two adjacent prefabricated capping beams;
the prefabricated capping beam is connected with the prefabricated main longitudinal beam through concrete, so that the first-layer column, the prefabricated capping beam and the prefabricated main longitudinal beam form a whole.
7. The rail transit elevated station hall floor frame of claim 6, wherein the first pre-stressed conduit on the cap beam body is in communication with the first pre-stressed conduit on the main stringer body to form a continuous pre-stressed conduit.
8. The rail transit elevated station hall floor frame of claim 6, wherein the second pre-stressed conduit extends longitudinally from within one side of the cap body, to the top of the cap body, and through into the other side of the cap body.
9. The rail transit elevated station hall floor frame of claim 8, wherein the capping body has a post-cast layer on top to cover the second pre-stressed conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921638960.5U CN212175458U (en) | 2019-09-27 | 2019-09-27 | Prefabricated bent cap and track traffic elevated station hall layer frame thereof |
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| CN201921638960.5U CN212175458U (en) | 2019-09-27 | 2019-09-27 | Prefabricated bent cap and track traffic elevated station hall layer frame thereof |
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| CN212175458U true CN212175458U (en) | 2020-12-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113512932A (en) * | 2021-03-19 | 2021-10-19 | 宁波市政工程建设集团股份有限公司 | Prestressed steel beam connected prefabricated small box girder type hidden cover beam and construction method thereof |
| CN114319112A (en) * | 2021-12-08 | 2022-04-12 | 上海市基础工程集团有限公司 | Rapid prestress beam-penetrating method for prefabricated part |
| CN115404792A (en) * | 2022-07-14 | 2022-11-29 | 中铁工程设计咨询集团有限公司 | Existing line platform structure and construction method thereof |
-
2019
- 2019-09-27 CN CN201921638960.5U patent/CN212175458U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113512932A (en) * | 2021-03-19 | 2021-10-19 | 宁波市政工程建设集团股份有限公司 | Prestressed steel beam connected prefabricated small box girder type hidden cover beam and construction method thereof |
| CN114319112A (en) * | 2021-12-08 | 2022-04-12 | 上海市基础工程集团有限公司 | Rapid prestress beam-penetrating method for prefabricated part |
| CN115404792A (en) * | 2022-07-14 | 2022-11-29 | 中铁工程设计咨询集团有限公司 | Existing line platform structure and construction method thereof |
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