CN203188113U - Segmental precasting assembly structure in large bent cap - Google Patents
Segmental precasting assembly structure in large bent cap Download PDFInfo
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- CN203188113U CN203188113U CN 201320220797 CN201320220797U CN203188113U CN 203188113 U CN203188113 U CN 203188113U CN 201320220797 CN201320220797 CN 201320220797 CN 201320220797 U CN201320220797 U CN 201320220797U CN 203188113 U CN203188113 U CN 203188113U
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Abstract
The utility model discloses a segmental precasting assembly structure in a large bent cap. The structure comprises two precast segments and a cast-in-place segment, wherein the two precast segments are in butt joint through the cast-in-place segment, and prestress ribs penetrate between the two precast segments and the cast-in-place segment. The segmental precasting assembly structure has low requirements for bent cap precasting and on-site hoisting construction, and is particularly suitable for construction of the large bent cap.
Description
Technical field
The utility model relates to preform lid girder construction technical field, relates in particular to segmented precast assembly structure in a kind of large-scale bent cap.
Background technology
Bent cap construction in the bridge is one of emphasis of bridge construction, the job practices that the tradition bent cap mainly adopts is the carriage method, mould is set with concreting on bridge pier top, after solidifying by concrete curing mould is removed, there is following shortcoming in this method: the cycle of 1, setting up is long; 2, labor intensive and material; 3, in the Urban Bridge construction, can limit traffic above-ground; 4, for the relatively poor place support ground processing cost height of geological conditions; 5, higher to site requirements.
Therefore, in order to overcome the deficiency that above-mentioned carriage method construction exists, existing how the prefabricated bent cap of employing reproduces a rapid constructing method of lifting, specifically according to the prefabricated bent cap of construction requirement elder generation, bent cap is transported to the job site again and carries out integral hoisting.Constructing of the very suitable middle-size and small-size bent cap of this method, but for the constructing of large-scale bent cap (as above 400 tons), the suspender that is difficult to coupling at the scene carries out lifting operation, and excessive owing to volume and weight, construction requirement is higher, and has potential safety hazard.
Therefore, those skilled in the art is devoted to develop a kind of lower to the prefabricated and on-site hoisting construction requirement of bent cap always, is applicable to segmented precast assembly structure in the large-scale bent cap of large-scale bent cap construction.
The utility model content
Because above-mentioned the deficiencies in the prior art, the utility model proposes a kind of prefabricatedly and the on-site hoisting construction requirement is lower to bent cap, be applicable to segmented precast assembly structure in the large-scale bent cap of large-scale bent cap construction.
For achieving the above object, the utility model provides segmented precast assembly structure in a kind of large-scale bent cap, comprise two prefabricated subsections and one cast-in-place section, two described prefabricated subsections dock by described cast-in-place section, run through being provided with presstressed reinforcing steel between two described prefabricated subsections and described cast-in-place section.
As further improvement of the utility model, be provided be used to the horizontal sleeve pipe that wears described presstressed reinforcing steel in the two described prefabricated subsections, the scene of being convenient to described presstressed reinforcing steel wears.
As further improvement of the utility model, described prefabricated subsection is provided be used to the vertical sleeve pipe that wears the connector that is connected with bridge pier, be convenient to finish the precast spliced of described prefabricated subsection and described bridge pier, further reduce difficulty of construction, improve its structural reliability.
As seen, segmented precast assembly structure is simple and reliable for structure in the large-scale bent cap of the present utility model, and it is lower to construct difficulty, is particularly useful for constructing of large-scale bent cap, has reduced greatly and has constructed difficulty, has shortened the construction period, is convenient to site operation.
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, feature and effect fully.
Description of drawings
Fig. 1 is the schematic process flow diagram of segmented precast assembly method in the large-scale bent cap.
Fig. 2 is the splicing structure schematic diagram of completing steps S2.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the left view of Fig. 2.
Fig. 5 is the application schematic diagram of segmented precast assembly structure in the large-scale bent cap.
Fig. 6 is the vertical view of Fig. 5.
The specific embodiment
Be illustrated in figure 5 as the application schematic diagram of segmented precast assembly structure in the large-scale bent cap, this splicing structure comprises two prefabricated subsections 1 and one cast-in-place section 6, two prefabricated subsections 1 dock by cast-in-place section 6, run through being provided with presstressed reinforcing steel 5 between two prefabricated subsections 1 and cast-in-place section 6.
The further specific embodiment as present embodiment, as shown in Figure 5 and Figure 6, in two prefabricated subsections 1, be provided be used to the horizontal sleeve pipe that wears presstressed reinforcing steel 5, and prefabricated subsection 1 is provided be used to the vertical sleeve pipe that wears the connector 3 that is connected with bridge pier, add described horizontal sleeve pipe and vertical sleeve pipe, the scene of being convenient to described presstressed reinforcing steel wears, and finishes the precast spliced of prefabricated subsection 1 and bridge pier 2, further reduce difficulty of construction, improve its structural reliability.
Assembling method of the present utility model is below described.Fig. 1 is the schematic process flow diagram of segmented precast assembly method in the large-scale bent cap.Present embodiment proposes segmented precast assembly method in a kind of large-scale bent cap, and realization successfully lifts the large-scale bent cap above 400 tons to two bridge piers, and as shown in Figure 1, it specifically may further comprise the steps:
Step S1: according to designing requirement, described bent cap is divided into two sections prefabricated subsections 1 by the middle part carries out prefabricatedly, be provided be used to the horizontal sleeve pipe that wears presstressed reinforcing steel 5 on two prefabricated subsections 1 and the vertical sleeve pipe that is used for wearing the connector 3 that is connected with bridge pier 2; Exemplary, present embodiment connector 3 is the JL32 fining twisted steel.
Step S2: shown in Fig. 2-4, adopt loop wheel machine that prefabricated subsection 1 is lifted to bridge pier 2, in described vertical sleeve pipe, wear connector 3, finish the precast spliced of prefabricated subsection 1 and bridge pier 2, steadying line 4 is set simultaneously connects prefabricated subsections 1 and bridge piers 2.
Step S3: repeating step S2 is fixed to another described prefabricated subsection lifting on another described bridge pier.
Step S4: in conjunction with Fig. 5 and shown in Figure 6, build cast-in-place section 6 in opposite directions between the end face at two prefabricated subsections 1, two prefabricated subsections 1 are carried out concreting finish butt joint, laterally run through two prefabricated subsections 1 and cast-in-place section 6 importing presstressed reinforcing steel 5 by described horizontal sleeve pipe simultaneously.
The assembling method of present embodiment especially is fit to the bent cap precast assembly of twin pier, and compared to the carriage method of prior art, the required duration of present embodiment is shorter, over the ground hand-deliver pass to and ambient influnence littler; Compared to existing prefabricated lift-on/lift-off system, present embodiment has overcome the overweight problem that can't lift of integral hoisting bent cap, and two prefabricated subsections of present embodiment all are to be arranged on separately on the corresponding bridge pier earlier to dock by cast-in-place section again, its construction is convenient, requirement to construction is also reduced greatly, and cast-in-place section construction is because the two ends existence of fixing prefabricated subsection also becomes simpler, be overlapped on the two prefabricated subsections both ends of the surface in opposite directions as direct employing mould, build then and get final product.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (3)
1. segmented precast assembly structure in the large-scale bent cap is characterized in that: comprise two prefabricated subsections and one cast-in-place section, two described prefabricated subsections dock by described cast-in-place section, run through being provided with presstressed reinforcing steel between two described prefabricated subsections and described cast-in-place section.
2. segmented precast assembly structure in the large-scale bent cap as claimed in claim 1 is characterized in that: be provided be used to the horizontal sleeve pipe that wears described presstressed reinforcing steel in the two described prefabricated subsections.
3. segmented precast assembly structure in the large-scale bent cap as claimed in claim 1, it is characterized in that: described prefabricated subsection is provided be used to the vertical sleeve pipe that wears the connector that is connected with bridge pier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320220797 CN203188113U (en) | 2013-04-26 | 2013-04-26 | Segmental precasting assembly structure in large bent cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320220797 CN203188113U (en) | 2013-04-26 | 2013-04-26 | Segmental precasting assembly structure in large bent cap |
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| Publication Number | Publication Date |
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| CN203188113U true CN203188113U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320220797 Expired - Lifetime CN203188113U (en) | 2013-04-26 | 2013-04-26 | Segmental precasting assembly structure in large bent cap |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215893A (en) * | 2013-04-26 | 2013-07-24 | 上海市城市建设设计研究总院 | Method for prefabricated assembly of middle-divided sections of large-sized capping beam and assembly structure of middle-divided sections of large-sized capping beam |
| CN107386129A (en) * | 2017-09-19 | 2017-11-24 | 沈阳建筑大学 | A kind of construction method for preventing abutment body from Vertical Cracks occur using deformed bar |
| CN107642043A (en) * | 2017-09-19 | 2018-01-30 | 沈阳建筑大学 | A kind of construction method for preventing abutment body from Vertical Cracks occur |
| CN108316131A (en) * | 2018-04-17 | 2018-07-24 | 苏交科集团（甘肃）交通规划设计有限公司 | A kind of precast block formula full prestressing pier structure and its method of construction |
| CN110541364A (en) * | 2019-09-04 | 2019-12-06 | 上海城建市政工程（集团）有限公司 | Bridge bent cap segmented prefabrication, assembly and fixation method |
| CN116289482A (en) * | 2023-05-24 | 2023-06-23 | 湖南省交通规划勘察设计院有限公司 | Sectional prefabricated assembled bridge and construction method thereof |
-
2013
- 2013-04-26 CN CN 201320220797 patent/CN203188113U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215893A (en) * | 2013-04-26 | 2013-07-24 | 上海市城市建设设计研究总院 | Method for prefabricated assembly of middle-divided sections of large-sized capping beam and assembly structure of middle-divided sections of large-sized capping beam |
| CN107386129A (en) * | 2017-09-19 | 2017-11-24 | 沈阳建筑大学 | A kind of construction method for preventing abutment body from Vertical Cracks occur using deformed bar |
| CN107642043A (en) * | 2017-09-19 | 2018-01-30 | 沈阳建筑大学 | A kind of construction method for preventing abutment body from Vertical Cracks occur |
| CN108316131A (en) * | 2018-04-17 | 2018-07-24 | 苏交科集团（甘肃）交通规划设计有限公司 | A kind of precast block formula full prestressing pier structure and its method of construction |
| CN110541364A (en) * | 2019-09-04 | 2019-12-06 | 上海城建市政工程（集团）有限公司 | Bridge bent cap segmented prefabrication, assembly and fixation method |
| CN116289482A (en) * | 2023-05-24 | 2023-06-23 | 湖南省交通规划勘察设计院有限公司 | Sectional prefabricated assembled bridge and construction method thereof |
| CN116289482B (en) * | 2023-05-24 | 2023-09-05 | 湖南省交通规划勘察设计院有限公司 | Sectional prefabricated assembled bridge and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |