CN105442434A - Slot type connecting structure for prefabricated stand column and prefabricated cover beam of bridge and splicing method for prefabricated stand column and prefabricated cover beam - Google Patents
Slot type connecting structure for prefabricated stand column and prefabricated cover beam of bridge and splicing method for prefabricated stand column and prefabricated cover beam Download PDFInfo
- Publication number
- CN105442434A CN105442434A CN201510967121.8A CN201510967121A CN105442434A CN 105442434 A CN105442434 A CN 105442434A CN 201510967121 A CN201510967121 A CN 201510967121A CN 105442434 A CN105442434 A CN 105442434A
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- prefabricated
- bent cap
- column
- link slot
- stand column
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a slot type connecting structure for a prefabricated stand column and a prefabricated cover beam of a bridge. The slot type connecting structure comprises the prefabricated stand column and the prefabricated cover beam. A cover beam bottom surface steel bar net is arranged on the bottom surface of the cover beam. A cover beam top surface steel bar net is arranged on the top surface of the cover beam. The cover beam is provided with a stand column connecting groove which is provided with an upper opening in the top surface of the cover beam and a lower opening in the bottom surface of the cover beam, and the cross sectional area of the stand column connecting groove is larger than the cross sectional area of the top end of the stand column. A plurality of longitudinal main steel bars are arranged in the stand column and each provided with a free end extending from the top end of the stand column by a certain length. The free ends of the longitudinal main steel bars are all embedded in the stand column connecting groove when the cover beam and the stand column are spliced. The invention further discloses a splicing method for the prefabricated stand column and the prefabricated cover beam. By means of the slot type connecting structure and the splicing method for the prefabricated stand column and the prefabricated cover beam, it is not needed to bury too many pre-buried parts in the prefabricated stand column or the prefabricated cover beam in advance, the requirement for the positioning accuracy of on-site construction is low, the adjustment redundancy of on-site construction is large, requirements for construction machines, equipment and manufacturing are low, and construction is convenient and rapid.
Description
Technical field
The present invention relates to bridge construction technical field, particularly a kind of bridge prefabrication column and prefabricated bent cap insertion slot type syndeton and assembling method thereof.
Background technology
In prior art, bridge construction precast pier column and the assembled of prefabricated bent cap are typically employed in column or bent cap embedded sleeve barrel, built-in metal bellows and adopt prestress wire, then accurate for connecting reinforcement pre-buried in bent cap or column positioning sleeve is connected on the Splicing model in above-mentioned built-in fitting.
Due to above-mentioned three kinds of conventional connection modes all need in column or bent cap the built-in fitting such as pre-buried a fairly large number of sleeve, bellows or prestress pipe, and it is higher to the requirement of the construction such as connecting reinforcement and built-in fitting positioning precision in prefabricated units, the redundancy of site operation adjustment is less, all proposes very high requirement to construction machinery, equipment, manufacture processing each side etc.
Summary of the invention
Because the above-mentioned defect of prior art, technical purpose of the present invention is to provide a kind of bridge prefabrication column and prefabricated bent cap insertion slot type syndeton and assembling method thereof, improve prior art need in column or bent cap pre-buried a fairly large number of built-in fitting, and it is higher to the requirement of the construction such as connecting reinforcement and built-in fitting positioning precision in prefabricated units, the redundancy of site operation adjustment is less, requires more high defect to construction machinery, equipment, manufacture processing each side.
For achieving the above object, the invention provides a kind of bridge prefabrication column and prefabricated bent cap insertion slot type syndeton, comprise prefabricated stand column and prefabricated bent cap, the bottom surface of described prefabricated bent cap is provided with bent cap bottom surface steel mesh reinforcement, the end face of described prefabricated bent cap is provided with bent cap end face steel mesh reinforcement, described prefabricated bent cap is provided with column link slot, and described column link slot is provided with upper shed at the end face of described prefabricated bent cap, and described column link slot is provided with under shed in the bottom surface of described prefabricated bent cap; The cross-sectional area of described column link slot is greater than the cross-sectional area on described prefabricated stand column top; Some longitudinal main reinforcements are provided with in described prefabricated stand column, described longitudinal main reinforcement is provided with the free-end of the certain length stretched out from the top of described prefabricated stand column, described longitudinal main reinforcement free-end described prefabricated bent cap and described prefabricated stand column assembled time all embed in described column link slot.
Further, described column link slot runs through described bent cap bottom surface steel mesh reinforcement and described bent cap end face steel mesh reinforcement.
Further, described column link slot does not run through described bent cap bottom surface steel mesh reinforcement and described bent cap end face steel mesh reinforcement.
Further, described column link slot is be embedded in the metal bellows in described bent cap in advance.
Further, described column link slot is the hole of the concavo-convex alligator of band prefabricated in described bent cap.
The invention also discloses the assembling method of a kind of bridge prefabrication column and prefabricated bent cap, comprise the following steps:
A. prefabricated stand column, in described prefabricated stand column, arrange some longitudinal main reinforcements, described longitudinal main reinforcement is provided with the free-end of the certain length stretched out from the top of described prefabricated stand column;
B. prefabricated bent cap, the bottom surface of described prefabricated bent cap is provided with bent cap bottom surface steel mesh reinforcement, the end face of described prefabricated bent cap is provided with bent cap end face steel mesh reinforcement, described prefabricated bent cap arranges column link slot, described column link slot is provided with upper shed at the end face of described prefabricated bent cap, described column link slot is provided with under shed in the bottom surface of described prefabricated bent cap, and the cross-sectional area of described column link slot is greater than the cross-sectional area on described prefabricated stand column top;
C. described prefabricated stand column bottom is set up in after on bridge bearing platform, in the top surrounding of described prefabricated stand column, temporary support structure is set, described temporary support structure is provided with horizontal support face, described horizontal support face is provided with the soffit formwork of ring-type around described prefabricated stand column top, described soffit formwork can close described column link slot under shed completely, and described soffit formwork surface arranges rubber fastening band; Then described preform lid roof beam structure is located on described prefabricated stand column, described column link slot under shed is placed on described soffit formwork, adjusts accurate positioning in the column link slot simultaneously described longitudinal main reinforcement free-end that described prefabricated stand column top is stretched out all being inserted described prefabricated bent cap;
D. in described column link slot, build high-strength concrete, after described high-strength concrete solidifies, described prefabricated bent cap is connected with described prefabricated stand column for overall, finally removes described temporary support structure and soffit formwork.
Further, in described step B, described column link slot runs through described bent cap bottom surface steel mesh reinforcement and described bent cap end face steel mesh reinforcement.
Further, in described step B, described column link slot does not run through described bent cap bottom surface steel mesh reinforcement and described bent cap end face steel mesh reinforcement; In described step C, the whole described longitudinal main reinforcement free-end stretched out at described prefabricated stand column top, through described bent cap bottom surface steel mesh reinforcement, all inserts in the column link slot of described prefabricated bent cap.
Further, in described step B, the method to set up of column link slot is: form described column link slot at described prefabricated bent cap relevant position built-in metal bellows during prefabricated described prefabricated bent cap.
Further, in described step B, the method to set up of column link slot for: during prefabricated described prefabricated bent cap described in the hole formation of the concavo-convex alligator of described prefabricated bent cap relevant position prefabricated band column link slot.
Beneficial effect of the present invention:
The present invention is owing to have employed said structure design and assembling method, without the need to a fairly large number of built-in fitting pre-buried in column or bent cap, the requirement of site operation positioning precision is low, the redundancy of site operation adjustment is large, require lower to construction machinery, equipment, manufacture processing each side, convenient and quick construction.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of the embodiment of the present invention 1.
Fig. 2 is along A-A line sectional structure schematic diagram in Fig. 1.
The plan structure schematic diagram of Fig. 3 position embodiment of the present invention 2.
Along A-A line sectional structure schematic diagram in Fig. 4 bitmap 2.
In figure, 1 prefabricated bent cap; 11 bent cap end face steel mesh reinforcements; 12 bent cap bottom surface steel mesh reinforcements; 13 column link slots; 14 column link slot upper sheds; 15 column link slot under sheds; 2 prefabricated stand columns; 21 longitudinal main reinforcements; 22 longitudinal main reinforcement free-ends; 23 temporary support structures; 24 soffit formworks; 25 rubber fastening bands.
Detailed description of the invention
Embodiment 1
As Figure 1-Figure 2, a specific embodiment of bridge prefabrication column of the present invention and bent cap insertion slot type syndeton and assembling method thereof, structure and assembling method as follows:
Prefabricated stand column 2, in prefabricated stand column 2, arrange some longitudinal main reinforcements 21, longitudinal main reinforcement 21 is provided with the free-end 22 of the certain length stretched out from the top of column 2.
Prefabricated bent cap 1, end face steel mesh reinforcement 11 is provided with at the end face of prefabricated bent cap 1, the bottom surface of prefabricated bent cap 1 is provided with bottom surface steel mesh reinforcement 12, according to bridge design scheme, column link slot 13 is become in the relevant position built-in metal bellow-shaped of prefabricated bent cap 1, column link slot 13 is provided with upper shed 14 at the end face of prefabricated bent cap, column link slot 13 is provided with under shed 15 in the bottom surface of prefabricated bent cap, the cross-sectional area of column link slot 13 is greater than the cross-sectional area on prefabricated stand column 2 top, column link slot 13 does not run through bent cap end face steel mesh reinforcement 11 and bent cap bottom surface steel mesh reinforcement 12, namely column link slot upper shed 14 is covered with bent cap end face steel mesh reinforcement 11, bent cap bottom surface steel mesh reinforcement 12 is had under column link slot under shed 15.
Prefabricated stand column 2 bottom is set up in after on bridge bearing platform, in the top surrounding of prefabricated stand column 2, temporary support structure 23 is set, temporary support structure 23 is provided with horizontal support face, horizontal support face is provided with the soffit formwork 24 of ring-type around column top, soffit formwork 24 can enclosing upright link slot under shed 15 completely, and soffit formwork 24 surface arranges rubber fastening band 25; Then prefabricated bent cap 1 is set up on column 2, column link slot under shed 15 is placed on soffit formwork 24, and longitudinal main reinforcement free-end of simultaneously being stretched out at prefabricated stand column top 22 all to insert in the column link slot 13 of prefabricated bent cap through bent cap bottom surface steel mesh reinforcement 12 and adjusts accurate positioning.
In column link slot 13, build high-strength concrete, after high-strength concrete solidifies, prefabricated bent cap is connected with prefabricated stand column for overall, finally removes temporary support structure 23 and soffit formwork 24.
Embodiment 2
As shown in Figure 3-4, a specific embodiment of bridge prefabrication column of the present invention and bent cap insertion slot type syndeton and assembling method thereof, structure and assembling method as follows:
Prefabricated stand column 2, in prefabricated stand column 2, arrange some longitudinal main reinforcements 21, longitudinal main reinforcement 21 is provided with the free-end 22 of the certain length stretched out from the top of prefabricated stand column 2.
Prefabricated bent cap 1, end face steel mesh reinforcement 11 is provided with at the end face of prefabricated bent cap 1, the bottom surface of prefabricated bent cap 1 is provided with bottom surface steel mesh reinforcement 12, according to bridge design scheme, at the hole formation column link slot 13 of the concavo-convex alligator of relevant position prefabricated band of prefabricated bent cap, column link slot 13 is provided with upper shed 14 at the end face of prefabricated bent cap, column link slot 13 is provided with under shed 15 in the bottom surface of prefabricated bent cap, the cross-sectional area of column link slot 13 is greater than the cross-sectional area on prefabricated stand column 2 top, column link slot 13 runs through bent cap end face steel mesh reinforcement 11 and bent cap bottom surface steel mesh reinforcement 12, i.e. equal no-reinforcing-bar net on column link slot upper shed 14 and under column link slot under shed 15.
Prefabricated stand column 2 bottom is set up in after on bridge bearing platform, in the top surrounding of prefabricated stand column 2, temporary support structure 23 is set, temporary support structure 23 is provided with horizontal support face, horizontal support face is provided with the soffit formwork 24 of ring-type around prefabricated stand column top, soffit formwork 24 can enclosing upright link slot under shed 15 completely, and soffit formwork 24 surface arranges rubber fastening band 25; Then be set up on prefabricated stand column 2 by prefabricated bent cap 1, column link slot under shed 15 is placed on soffit formwork 24, adjusts accurate positioning in the column link slot 13 that the longitudinal main reinforcement free-end 22 simultaneously stretched out at prefabricated stand column top all inserts bent cap.
In column link slot 13, build high-strength concrete, after high-strength concrete solidifies, prefabricated bent cap is connected with prefabricated stand column for overall, finally removes temporary support structure 23 and soffit formwork 24.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. a bridge prefabrication column and prefabricated bent cap insertion slot type syndeton, comprise prefabricated stand column and prefabricated bent cap, the bottom surface of described prefabricated bent cap is provided with bent cap bottom surface steel mesh reinforcement, the end face of described prefabricated bent cap is provided with bent cap end face steel mesh reinforcement, it is characterized in that, described prefabricated bent cap is provided with column link slot, and described column link slot is provided with upper shed at the end face of described prefabricated bent cap, and described column link slot is provided with under shed in the bottom surface of described prefabricated bent cap; The cross-sectional area of described column link slot is greater than the cross-sectional area on described prefabricated stand column top; Some longitudinal main reinforcements are provided with in described prefabricated stand column, described longitudinal main reinforcement is provided with the free-end of the certain length stretched out from the top of described prefabricated stand column, described longitudinal main reinforcement free-end described prefabricated bent cap and described prefabricated stand column assembled time all embed in described column link slot.
2. bridge prefabrication column according to claim 1 and prefabricated bent cap insertion slot type syndeton, is characterized in that, described column link slot runs through described bent cap bottom surface steel mesh reinforcement and described bent cap end face steel mesh reinforcement.
3. bridge prefabrication column according to claim 1 and prefabricated bent cap insertion slot type syndeton, is characterized in that, described column link slot does not run through described bent cap bottom surface steel mesh reinforcement and described bent cap end face steel mesh reinforcement.
4., according to the arbitrary described bridge prefabrication column of claim 1-3 and prefabricated bent cap insertion slot type syndeton, it is characterized in that, described column link slot is be embedded in the metal bellows in described bent cap in advance.
5., according to the arbitrary described bridge prefabrication column of claim 1-3 and prefabricated bent cap insertion slot type syndeton, it is characterized in that, described column link slot is the hole of the concavo-convex alligator of band prefabricated in described bent cap.
6. an assembling method for bridge prefabrication column and prefabricated bent cap, is characterized in that, comprises the following steps:
A. prefabricated stand column, in described prefabricated stand column, arrange some longitudinal main reinforcements, described longitudinal main reinforcement is provided with the free-end of the certain length stretched out from the top of described prefabricated stand column;
B. prefabricated bent cap, the bottom surface of described prefabricated bent cap is provided with bent cap bottom surface steel mesh reinforcement, the end face of described prefabricated bent cap is provided with bent cap end face steel mesh reinforcement, described prefabricated bent cap arranges column link slot, described column link slot is provided with upper shed at the end face of described prefabricated bent cap, described column link slot is provided with under shed in the bottom surface of described prefabricated bent cap, and the cross-sectional area of described column link slot is greater than the cross-sectional area on described prefabricated stand column top;
C. described prefabricated stand column bottom is set up in after on bridge bearing platform, in the top surrounding of described prefabricated stand column, temporary support structure is set, described temporary support structure is provided with horizontal support face, described horizontal support face is provided with the soffit formwork of ring-type around described prefabricated stand column top, described soffit formwork can close described column link slot under shed completely, and described soffit formwork surface arranges rubber fastening band; Then described preform lid roof beam structure is located on described prefabricated stand column, described column link slot under shed is placed on described soffit formwork, adjusts accurate positioning in the column link slot simultaneously described longitudinal main reinforcement free-end that described column top is stretched out all being inserted described bent cap;
D. in described column link slot, build high-strength concrete, after described high-strength concrete solidifies, described prefabricated bent cap is connected with described prefabricated stand column for overall, finally removes described temporary support structure and soffit formwork.
7. the assembling method of bridge prefabrication column according to claim 6 and prefabricated bent cap, is characterized in that, in described step B, described column link slot runs through described bent cap bottom surface steel mesh reinforcement and bent cap end face steel mesh reinforcement.
8. the assembling method of bridge prefabrication column according to claim 6 and prefabricated bent cap, is characterized in that, in described step B, described column link slot does not run through described bent cap bottom surface steel mesh reinforcement and bent cap end face steel mesh reinforcement; In described step C, the whole described longitudinal main reinforcement free-end stretched out at described prefabricated stand column top, through described bent cap bottom surface steel mesh reinforcement, all inserts in the column link slot of described prefabricated bent cap.
9. according to the assembling method of the arbitrary described bridge prefabrication column of claim 6-8 and prefabricated bent cap, it is characterized in that, in described step B, the method to set up of column link slot is: form described column link slot at described prefabricated bent cap relevant position built-in metal bellows during prefabricated described prefabricated bent cap.
10. according to the assembling method of the arbitrary described bridge prefabrication column of claim 6-8 and prefabricated bent cap, it is characterized in that, in described step B, the method to set up of column link slot for: during prefabricated described prefabricated bent cap described in the hole formation of the concavo-convex alligator of described prefabricated bent cap relevant position prefabricated band column link slot.
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| CN201510967121.8A CN105442434B (en) | 2015-12-21 | 2015-12-21 | The assembling method of bridge prefabrication column and prefabricated bent cap |
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| CN201510967121.8A CN105442434B (en) | 2015-12-21 | 2015-12-21 | The assembling method of bridge prefabrication column and prefabricated bent cap |
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Cited By (7)
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| CN106498847A (en) * | 2016-12-19 | 2017-03-15 | 上海应用技术大学 | A kind of prefabricated bent cap and attachment structure and the method for attachment of prefabricated stand column |
| CN107268424A (en) * | 2017-07-06 | 2017-10-20 | 东南大学 | Can fast leveling precast assembly bridge pier structure and its construction method |
| CN113202014A (en) * | 2020-03-14 | 2021-08-03 | 中国铁路设计集团有限公司 | Top cap and pier stud steel bar circular seam connection type assembly structure and construction method |
| CN113202013A (en) * | 2020-03-14 | 2021-08-03 | 中国铁路设计集团有限公司 | Splicing structure between prefabricated top cap and pier stud and construction method |
| CN113356030A (en) * | 2021-06-30 | 2021-09-07 | 上海市政工程设计研究总院（集团）有限公司 | Prefabricated steel-concrete combined capping beam and construction method thereof |
| CN113771186A (en) * | 2021-09-03 | 2021-12-10 | 北京好运达智创科技有限公司 | Capping beam and manufacturing method thereof |
| CN114232501A (en) * | 2022-01-18 | 2022-03-25 | 宁波市高等级公路建设管理中心 | Bent cap pier stud integration template structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106498847A (en) * | 2016-12-19 | 2017-03-15 | 上海应用技术大学 | A kind of prefabricated bent cap and attachment structure and the method for attachment of prefabricated stand column |
| CN106498847B (en) * | 2016-12-19 | 2019-01-22 | 上海应用技术大学 | A kind of connection structure and connection method of prefabricated bent cap and prefabricated stand column |
| CN107268424A (en) * | 2017-07-06 | 2017-10-20 | 东南大学 | Can fast leveling precast assembly bridge pier structure and its construction method |
| CN107268424B (en) * | 2017-07-06 | 2019-05-03 | 东南大学 | Can fast leveling precast assembly bridge pier structure and its construction method |
| CN113202014A (en) * | 2020-03-14 | 2021-08-03 | 中国铁路设计集团有限公司 | Top cap and pier stud steel bar circular seam connection type assembly structure and construction method |
| CN113202013A (en) * | 2020-03-14 | 2021-08-03 | 中国铁路设计集团有限公司 | Splicing structure between prefabricated top cap and pier stud and construction method |
| CN113356030A (en) * | 2021-06-30 | 2021-09-07 | 上海市政工程设计研究总院（集团）有限公司 | Prefabricated steel-concrete combined capping beam and construction method thereof |
| CN113356030B (en) * | 2021-06-30 | 2023-01-10 | 上海市政工程设计研究总院（集团）有限公司 | Prefabricated steel-concrete combined capping beam and construction method thereof |
| CN113771186A (en) * | 2021-09-03 | 2021-12-10 | 北京好运达智创科技有限公司 | Capping beam and manufacturing method thereof |
| CN114232501A (en) * | 2022-01-18 | 2022-03-25 | 宁波市高等级公路建设管理中心 | Bent cap pier stud integration template structure |
| CN114232501B (en) * | 2022-01-18 | 2023-12-12 | 宁波市高等级公路建设管理中心 | Integrated template structure of capping beam pier column |
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