CN212561127U - Straddle type single-track viaduct assembled pier - Google Patents
Straddle type single-track viaduct assembled pier Download PDFInfo
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- CN212561127U CN212561127U CN202020642549.1U CN202020642549U CN212561127U CN 212561127 U CN212561127 U CN 212561127U CN 202020642549 U CN202020642549 U CN 202020642549U CN 212561127 U CN212561127 U CN 212561127U
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Abstract
A straddle-type monorail viaduct assembled pier comprises prefabricated pier columns and a cast-in-place foundation bearing platform, wherein a plurality of vertically-placed pier column reinforcing steel bars are arranged in the prefabricated pier columns, and the lower parts of the pier column reinforcing steel bars are respectively connected with a grouting sleeve; bearing platform reinforcing steel bars which are in one-to-one correspondence with the grouting sleeves are arranged in the cast-in-place foundation bearing platform, and the upper ends of the bearing platform reinforcing steel bars extend out of the surface of the cast-in-place foundation bearing platform; in an assembly state, the grouting sleeve is sleeved on the bearing platform reinforcing steel bars higher than the surface of the cast-in-situ foundation bearing platform, and high-strength non-shrinkage grouting material is injected through grouting holes of the grouting sleeve to realize butt joint of pier column reinforcing steel bars and the bearing platform reinforcing steel bars. The assembled pier of the straddle-type single-rail viaduct effectively solves the problems of traffic interference, environmental pollution, resource waste, potential safety hazards, construction period and construction quality guarantee-free caused by the traditional cast-in-place mode through the mode of factory prefabrication and field assembly.
Description
Technical Field
The utility model relates to an urban rail transit straddles single track elevated line engineering technical field, especially relates to straddle type single track elevated bridge assembled pier.
Background
The assembly type construction technology is applied to the construction of the straddle type monorail line track beam, but the lower structure of the straddle type monorail overhead bridge, including pier studs and foundation bearing platforms, still adopts the traditional cast-in-place construction mode. This approach tends to have a number of problems: 1. the cast-in-place concrete is much, and the pollution of dust, slurry, lamplight, noise and the like is serious; 2. the construction occupies a large area and is slow, and the construction is mainly carried out on urban arterial roads and has great influence on traffic; 3. the construction progress is greatly influenced by weather; 4. the concrete needs to be pulled to the site, the transportation time is long, and the quality of the concrete is difficult to ensure; 5. a large amount of manpower is needed for formwork erecting and formwork dismantling on site, the degree of mechanization is low, the labor cost is high, and meanwhile, the safety risk is high; 6. this approach also does not meet the requirements of the nation for the vigorous development of fabricated buildings.
Disclosure of Invention
An object of the utility model is to provide an assembled pier for striding a formula single track overpass, through prefabricated, the on-the-spot mode of assembling of mill, effectively avoided traffic interference, environmental pollution, wasting of resources, potential safety hazard, construction cycle and the construction quality problem that does not have the guarantee that traditional cast-in-place mode caused.
The utility model adopts the technical proposal that: a straddle-type monorail viaduct assembled pier comprises prefabricated pier columns and a cast-in-place foundation bearing platform, wherein a plurality of vertically-placed pier column reinforcing steel bars are arranged in the prefabricated pier columns, and the lower parts of the pier column reinforcing steel bars are respectively connected with a grouting sleeve; bearing platform reinforcing steel bars which are in one-to-one correspondence with the grouting sleeves are arranged in the cast-in-place foundation bearing platform, and the upper ends of the bearing platform reinforcing steel bars extend out of the surface of the cast-in-place foundation bearing platform; in an assembly state, the grouting sleeve is sleeved on the bearing platform reinforcing steel bars higher than the surface of the cast-in-situ foundation bearing platform, and high-strength non-shrinkage grouting material is injected through grouting holes of the grouting sleeve to realize butt joint of pier column reinforcing steel bars and the bearing platform reinforcing steel bars.
The further technical scheme is as follows: and a mortar cushion layer is arranged on the contact surface of the prefabricated pier stud and the cast-in-place foundation bearing platform.
The further technical scheme is as follows: the pier stud reinforcing steel bars are in threaded connection with the grouting sleeves.
The further technical scheme is as follows: the grouting sleeve is characterized in that tooth-shaped grooves are formed in the inner wall of the grouting sleeve and the outer wall of the bearing platform steel bar, and a grouting hole and a grout outlet which are communicated with the grouting hole are formed in the cylinder body of the grouting sleeve.
The further technical scheme is as follows: and the outer wall of the prefabricated pier stud is provided with a hanging ring.
Since the technical scheme is used, the utility model discloses a stride a formula single track overpass assembled pier has following beneficial effect:
1. the utility model discloses a prefabricated pier stud and cast-in-place basis cushion cap through pier stud reinforcing bar, grout sleeve, cushion cap atress reinforced bar connection, form the assembled pier that has good stability.
2. Grout sleeve and pier stud reinforcing bar are threaded connection, grout sleeve is connected for the grout with the cushion cap reinforcing bar, and overall structure is simple, the steadiness is good.
3. Prefabricated pier stud with cast-in-place basis cushion cap contact surface bonds through high strength mortar, and the associativity is good.
4. Be equipped with the flute profile recess on the grout sleeve inner wall, be equipped with the flute profile recess on the outer wall of cushion cap reinforcing bar, the high strength that pours into does not have shrink grout material and grout sleeve and cushion cap reinforcing bar nested each other, has strengthened the anti-drawing force of prefabricated pier stud with the vertical direction of cushion cap.
5. Be provided with on grout sleeve's the barrel with grout mouth and the grout outlet of grout hole intercommunication, the grout mouth and the grout outlet of two reservations communicate each other, make things convenient for the grout, avoid the high strength grouting material after the solidification to form the bubble.
6. Prefabricated pier stud outer wall sets up rings, convenient hoist and mount and transportation.
To sum up, the utility model provides a straddle type single track overpass assembled pier stud has abandoned traditional cast in situ's construction mode, compares with the cast in situ mode, possesses following advantage: the construction of factory prefabrication, field foundation bearing platforms and the like can be carried out simultaneously, so that the construction period is shortened; the quality is ensured by factory standardized manufacture; the formwork support, concrete pouring and maintenance are not affected by fields, weather and the like; the degree of mechanization of mill prefabrication is high, has reduced the human cost, and mill prefabrication is safe and reliable, energy-concerving and environment-protective more simultaneously, accords with national policy requirement.
The technical features of the present invention will be further explained with reference to the drawings and the embodiments.
Drawings
Fig. 1 is a structural schematic diagram of a straddle type monorail viaduct assembly pier.
In the figure:
1-prefabricating a pier stud; 2-casting a foundation bearing platform in situ; 3-pier stud reinforcing steel bars; 4-grouting a sleeve; 5-bearing platform steel bars;
6-grouting holes; 61-a pulp outlet; 62-grouting port; 7-mortar cushion layer; 8-a tooth-shaped groove; 9-hanging ring. A-here a threaded connection.
Detailed Description
As shown in figure 1, the straddle type monorail viaduct assembled pier comprises prefabricated pier studs 1 and a cast-in-place foundation bearing platform 2. A plurality of pier column reinforcing steel bars 3 which are vertically arranged are arranged in the prefabricated pier column 1, and the lower part of each pier column reinforcing steel bar 3 is connected with a grouting sleeve 4; the cast-in-place foundation bearing platform 2 is internally provided with a bearing platform reinforcing steel bar 5 which is vertically arranged and has the same number with the pier stud reinforcing steel bar 3, the bearing platform reinforcing steel bar 5 corresponds to the grouting sleeve 4 one by one, and the upper end of the bearing platform reinforcing steel bar 5 extends out of the surface of the cast-in-place foundation bearing platform 2; in an assembly state, the grouting sleeve 4 is sleeved on the bearing platform reinforcing steel bars 5 higher than the surface of the cast-in-situ foundation bearing platform, high-strength non-shrinkage grouting material is injected through the grouting holes 6 of the grouting sleeve 4, the pier column reinforcing steel bars 3 are in butt joint with the bearing platform reinforcing steel bars 5, and the prefabricated pier column 1 and the cast-in-situ foundation bearing platform 2 are integrated. The grout sleeve is connected for the grout with the cushion cap reinforcing bar, and overall structure is simple, the steadiness is good.
In order to further improve the overall stability, a mortar cushion layer 7 is arranged on the contact surface of the prefabricated pier stud 1 and the cast-in-place foundation bearing platform 2.
In order to connect convenient and fast, firm stable, pier stud reinforcing bar 3 adopts threaded connection with grout sleeve 4.
In order to fully discharge the internal air during grouting and ensure the construction quality, a grouting port 61 and a grout outlet 62 which are communicated with the grouting hole 6 are arranged on the cylinder body of the grouting sleeve 4.
In order to increase the gripping force of the high-strength non-shrinkage grouting material and improve the tensile property and the connection strength, tooth-shaped grooves 8 are formed in the inner wall of the grouting sleeve 4 and the outer wall of the bearing platform reinforcing steel bar 5.
In order to facilitate hoisting and transportation, hanging rings 9 are embedded in the outer wall of the prefabricated pier stud 1, and the hanging rings are anchored with the prefabricated pier stud. Meanwhile, the lifting ring can be used as a temporary supporting fulcrum.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize. The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited to the description of the above embodiments, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of ways without departing from the spirit of the present invention, and all of them should be considered as belonging to the scope of the present invention as defined by the appended claims.
Claims (5)
1. The utility model provides a stride a formula monorail viaduct assembled pier which characterized in that: the cast-in-place pier comprises prefabricated pier columns and a cast-in-place foundation bearing platform, wherein a plurality of vertically placed pier column reinforcing steel bars are arranged in the prefabricated pier columns, and the lower parts of the pier column reinforcing steel bars are respectively connected with a grouting sleeve; bearing platform reinforcing steel bars which are in one-to-one correspondence with the grouting sleeves are arranged in the cast-in-place foundation bearing platform, and the upper ends of the bearing platform reinforcing steel bars extend out of the surface of the cast-in-place foundation bearing platform; in an assembly state, the grouting sleeve is sleeved on the bearing platform reinforcing steel bars higher than the surface of the cast-in-situ foundation bearing platform, and high-strength non-shrinkage grouting material is injected through grouting holes of the grouting sleeve to realize butt joint of pier column reinforcing steel bars and the bearing platform reinforcing steel bars.
2. The straddle-type monorail viaduct assembled pier of claim 1, which is characterized in that: and a mortar cushion layer is arranged on the contact surface of the prefabricated pier stud and the cast-in-place foundation bearing platform.
3. The straddle-type monorail viaduct assembled pier of claim 1, which is characterized in that: the pier stud reinforcing steel bars are in threaded connection with the grouting sleeves.
4. The straddle-type monorail viaduct assembled pier of claim 1, which is characterized in that: the grouting sleeve is characterized in that tooth-shaped grooves are formed in the inner wall of the grouting sleeve and the outer wall of the bearing platform steel bar, and a grouting hole and a grout outlet which are communicated with the grouting hole are formed in the cylinder body of the grouting sleeve.
5. A straddle-type monorail viaduct assembled pier as claimed in any one of claims 1-4, wherein: and the outer wall of the prefabricated pier stud is provided with a hanging ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020642549.1U CN212561127U (en) | 2020-04-24 | 2020-04-24 | Straddle type single-track viaduct assembled pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020642549.1U CN212561127U (en) | 2020-04-24 | 2020-04-24 | Straddle type single-track viaduct assembled pier |
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| Publication Number | Publication Date |
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| CN212561127U true CN212561127U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020642549.1U Active CN212561127U (en) | 2020-04-24 | 2020-04-24 | Straddle type single-track viaduct assembled pier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481827A (en) * | 2021-07-23 | 2021-10-08 | 中铁上海工程局集团有限公司 | Assembled bridge connection structure |
| US11293183B2 (en) * | 2017-06-02 | 2022-04-05 | China State Construction Engineering Corporation Limited | Precast column base joint and construction method therefor |
-
2020
- 2020-04-24 CN CN202020642549.1U patent/CN212561127U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11293183B2 (en) * | 2017-06-02 | 2022-04-05 | China State Construction Engineering Corporation Limited | Precast column base joint and construction method therefor |
| CN113481827A (en) * | 2021-07-23 | 2021-10-08 | 中铁上海工程局集团有限公司 | Assembled bridge connection structure |
| CN113481827B (en) * | 2021-07-23 | 2022-09-27 | 中铁上海工程局集团有限公司 | Assembled bridge connection structure |
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