CN110593115A - Cast-in-place box girder support system and construction method thereof - Google Patents
Cast-in-place box girder support system and construction method thereof Download PDFInfo
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- CN110593115A CN110593115A CN201910925909.0A CN201910925909A CN110593115A CN 110593115 A CN110593115 A CN 110593115A CN 201910925909 A CN201910925909 A CN 201910925909A CN 110593115 A CN110593115 A CN 110593115A
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- bailey
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000011065 in-situ storage Methods 0.000 claims abstract description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 210000002435 tendon Anatomy 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a cast-in-situ box girder support system, which comprises a stand column support, a hoop support, an electric hydraulic jack, a cross beam, a Bailey beam and a bottom die beam; the upright post support mainly comprises two steel upright posts and a foundation, wherein the steel upright posts are provided with electric hydraulic jacks, an upright post tie beam is arranged between the two steel upright posts, and the foundation is arranged at the tip of a high-level area of a steep terrain; arranging high piers in a low-level area of the steep terrain; the anchor ear support mainly comprises a through hole, an L-shaped anchor ear plate, a stiffening rib and a split bolt, wherein the through hole is reserved in the high pier, the L-shaped anchor ear plate is provided with a bolt reserved hole and the stiffening rib, and the split bolt is arranged in the through hole and the bolt reserved hole. The invention has the beneficial effects that: the invention utilizes the existing high pier to form the hoop supporting system, reduces the process of erecting the steel upright column near the high pier in the traditional technology, increases the construction speed and reduces the construction cost.
Description
Technical Field
The invention relates to a support system, in particular to a cast-in-place box girder support system and a construction method thereof.
Background
At present, when cast-in-place beam construction is carried out, a common construction method is that reinforcement treatment is carried out on a foundation, and then concrete pouring construction is carried out after a full-scale support is built, a template and reinforcing steel bars are placed. One support form commonly used in the construction of the high-pier cast-in-place box girder is a Bailey beam and steel pipe column combined support (namely, the Bailey beam and the steel pipe column are used as supports), and particularly under the conditions of heavy load, high pier columns and large span, the support form is economic and safe. The related patents are: the construction method comprises the following steps of constructing a support system (ZL 201520713361.0) for a bridge high pier cast-in-place box, a construction method for a few supports of the bridge, a bridge (ZL201610423219.1), a construction method for a floor-free support combining a hoop and a Bailey beam cast-in-place box beam (in substantive examination, application number CN201810746490.8), a Bailey beam cable saddle hoisting support (ZL 201820129079.1), a simply supported bridge support structure (ZL 201620340399.2) based on the Bailey beam support, a river-crossing bridge bottom Bailey beam temporary support jacking and floating dismantling method (ZL 201711227627.0) and a Bailey beam support dismantling device (ZL 201821049367.2). However, for a high pier cast-in-place box girder with steep terrain and a pier body of 40m or more, the full framing construction not only has the problems that the steel pipe column and the foundation thereof cannot be erected and erected or are difficult to erect, the deflection of the middle part is large due to the overlong long span beret beam, the pre-pressing construction of a bracket system is large, and the like, but also has low safety and large material and personnel investment. Therefore, in order to overcome the problems, a cast-in-place box girder support system suitable for steep terrain and a construction method thereof are needed to be found.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a cast-in-place box girder support system and a construction method thereof.
The cast-in-situ box girder support system comprises upright post supports, hoop supports, an electric hydraulic jack, a cross beam, a Bailey girder and a bottom formwork girder; the upright post support mainly comprises two steel upright posts and a foundation, wherein the steel upright posts are provided with electric hydraulic jacks, an upright post tie beam is arranged between the two steel upright posts, and the foundation is arranged at the tip of a high-level area of a steep terrain; arranging high piers in a low-level area of the steep terrain; the anchor ear support mainly comprises a through hole, an L-shaped anchor ear plate, a stiffening rib and a split bolt, wherein the through hole is reserved in the high pier, the L-shaped anchor ear plate is provided with a bolt reserved hole and the stiffening rib, and the split bolt is arranged in the through hole and the bolt reserved hole; the electric hydraulic jack at the top of the steel upright post and the electric hydraulic jack at the top of the hoop support are respectively provided with a cross beam, a Bailey beam is arranged above the cross beam, a bottom mould beam is arranged at the top of the Bailey beam, a support is arranged at the top of the high pier, and a cast-in-place box beam template is arranged above the bottom mould beam and the support.
Preferably, the method comprises the following steps: if the span of the cross beam is too large, a prestressed Bailey beam is adopted, wherein end plates are arranged at two ends of the Bailey beam, rib holes, prestressed ribs and anchorage devices are arranged at the lower parts of the end plates, and the prestressed ribs penetrate through the rib holes and the anchorage devices.
Preferably, the method comprises the following steps: the electro-hydraulic jack is provided with a base for bolting and is bolted on the upright post support and the hoop support.
Preferably, the method comprises the following steps: the bottom of the beam is provided with a groove and is butted with a plunger of the electric hydraulic jack.
Preferably, the method comprises the following steps: the top of the bottom mould beam is flush with the top of the support on the high pier.
Preferably, the method comprises the following steps: the section of the steel upright post is a round corner rectangle.
The construction method of the cast-in-place box girder bracket system comprises the following steps:
1) when the high pier is constructed, a through hole is reserved at a proper position at the upper part of the high pier, then L-shaped hoop plates are arranged on two sides of the through hole, stiffening ribs and bolt reserved holes are arranged in the L-shaped hoop plates, and split bolts are arranged through the through hole and the bolt reserved holes to form a hoop support;
2) in a steep terrain between two spans of the high pier column, searching an area suitable for the steel upright column and foundation construction thereof, carrying out foundation construction, then erecting two steel pipe columns, fixing by using the steel pipe columns when the steel upright columns are installed, and arranging upright column tie beams between the steel upright columns;
3) the hoop support and the steel upright post are respectively provided with an electric hydraulic jack;
4) respectively placing a cross beam on the hoop support and the electric hydraulic jack of the steel upright post, wherein the bottom of the cross beam is provided with a groove and is butted with a plunger of the electric hydraulic jack;
5) the bailey beam is hung on the cross beam supported by the hoop, the support is placed at the top of the high pier, and the bailey beam is also hung on the cross beam supported by the upright post; if the span of the cross beam is too large, a prestressed Bailey beam is adopted; the prestressed Bailey beam is characterized in that end plates are arranged at two ends of the Bailey beam, and prestress is applied through a rib hole at the lower part of each end plate, a prestressed rib and an anchorage device;
6) arranging bottom mould beams on the Bailey beam at certain intervals, and then gradually arranging a cast-in-place box beam template, reinforcing steel bars and a prestress system on the bottom mould beams;
7) the method comprises the following steps of pouring concrete, starting an electric hydraulic jack to perform automatic height compensation, and applying prestress after the concrete is poured and reaches a certain strength as the more concrete is poured and the more compensation is performed;
8) and after the strength of the high-pier cast-in-place box girder meets the requirement, sequentially removing the cast-in-place box girder template, the bottom mould girder, the Bailey girder, the cross beam, the electric hydraulic jack, the hoop support and the upright post support, and backfilling the through holes in the high piers with concrete to be filled.
The invention has the beneficial effects that:
(1) the anchor ear supporting system is formed by utilizing the existing high pier, so that the process of erecting the steel upright column near the high pier in the traditional technology is reduced, the construction speed is increased, and the construction cost is reduced.
(2) The steel upright column is arranged at the high-position tip end between two adjacent high piers, and the two round-corner rectangular upright columns and the upright column tying beam are combined to form the steel upright column, so that the lateral rigidity of the upright column is enhanced, the height of the steel upright column can be reduced, the manufacturing cost is reduced, and obvious economic benefits are achieved.
(3) The electric hydraulic jack has the function of automatic height compensation, so that the whole support does not need to be pre-pressed, and the electric hydraulic jack has obvious technical and economic benefits.
(4) And for the long-span Bailey beam, a prestressed Bailey beam can be adopted, the middle deflection of the Bailey beam is favorably reduced, and the automatic compensation of the electric hydraulic jack is added, so that the accuracy of the position of the template can be further favorably ensured, and the construction precision of the cast-in-place box beam is further ensured.
(5) The prestressed Bailey beam is formed by arranging the end plates on two sides of the traditional Bailey beam and then applying prestress through the rib holes at the lower parts of the end plates, the prestressed ribs and the anchorage devices, and is simple in structure and convenient for field operation.
(6) On the basis of the traditional Bailey beam steel pipe column combined bracket, the composite bracket system is formed by improving the support system of the Bailey beam, and a certain reference value is provided for similar engineering construction.
Drawings
FIG. 1 is a schematic view of a hoop support;
FIG. 2 is an elevation view of a steel stud;
FIG. 3 is a top view of a steel stud;
FIG. 4 is a schematic view of the hoop support mounting jacks;
FIG. 5 is a schematic view of a steel column top surface mounting jack;
FIG. 6 is a detail view of the bottom of the beam;
FIG. 7 is a schematic view of a cross beam arranged on the hoop support;
FIG. 8 is a schematic view of a cross beam disposed on a steel column;
FIG. 9 is a schematic view of a bailey beam being hung on the hoop support and a mounting support on the high pier;
FIG. 10 is a schematic view of a Bailey beam being hung on a steel upright;
FIG. 11 is a schematic view of a prestressed Bailey beam;
FIG. 12 is a schematic illustration of the formwork system installation;
description of reference numerals: 1-an electric hydraulic jack; 2-a cross beam; 3-bailey beam; 4-bottom mould beam; 5-steel upright posts; 6-base; 7-column tie beam; 8-steep terrain; 9-a through hole; a 10-L-shaped hoop plate; 11-a stiffener; 12-split bolts; 13-high pier; 14-an end plate; 15-rib holes; 16-a prestressed tendon; 17-an anchorage device; 18-a base; 19-a groove; 20-a support; 21-a plunger; 22-cast-in-place box girder template.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
As shown in fig. 1, when a cylindrical high pier 13 is constructed, two rows of through holes 9 are reserved at appropriate positions on the upper part of the cylindrical high pier, then an L-shaped hoop plate 10 is respectively arranged on two sides of each through hole 9, a stiffening rib 11 and two bolt preformed holes are arranged in each L-shaped hoop plate 10, and two counter-pulling bolts 12 are arranged through the two rows of through holes 9 and the two bolt preformed holes to form a hoop support.
As shown in fig. 2 and 3, in steep topography 8 between 13 pier stud two spans of high mound, the length that is favorable to reducing steel column 5 is sought, and then the tip district of the high position district of practicing thrift the cost, as the region of steel column 5 and the construction of basis 6, carry out the construction of basis 6, later erect two steel-pipe columns on basis 6, it fixes to utilize the steel-pipe column to come when installing steel column 5, the top of steel column 5 will keep equal with the top of 13 department L type hooping plate 10 of high mound, treat that steel column 5 lays the shaping back, demolish the steel-pipe column, and set up stand straining 7 between two steel column 5, steel column 5 cross-section is rounded rectangle.
As shown in fig. 4 and 5, the base 18 for bolting the bottom of the electro-hydraulic jack 1 is respectively bolted on the hoop support and the steel upright post 5, and the electro-hydraulic jack 1 has an automatic compensation effect.
As shown in fig. 6, 7 and 8, a cylindrical cross beam 2 is respectively placed on each hoop support and the steel upright post 5, four circular grooves 19 are formed in the bottom of the cross beam 2 and are in butt joint with a plunger 21 of the electric hydraulic jack 1, and the diameter of each groove 19 is 2-3 mm larger than the outer diameter of the plunger 21.
As shown in fig. 9 and 10, a bailey beam 3 is hung on the cross beam 2 supported by the hoops, a support 20 is placed at the top of the high pier 13, and the bailey beam 3 is also hung on the cross beam 2 supported by the upright posts; if the span of the cross beam 2 is too large, a prestressed Bailey beam can be adopted, so that the deflection of the Bailey beam 3 is reduced conveniently.
As shown in fig. 11, the prestressed beret beam is provided with end plates 14 at both ends of the beret beam 3, wherein the end plates 14 are frustum pyramid-shaped, and prestressing is applied through tendon holes 15, prestressed tendons 16 and anchors 17 preset at the lower parts of the end plates 14.
As shown in fig. 12, the bottom die beams 4 are arranged on the bailey beams 3 at certain intervals, and the tops of the bottom die beams 4 are kept flush with the tops of the supports 20 on the high piers 13 to form a template system; and then gradually laying a cast-in-situ box girder template 22, reinforcing steel bars and a prestress system on the bottom die girder 4.
And pouring concrete, starting the electric hydraulic jack 1 to perform automatic height compensation, and applying prestress after the concrete is poured and reaches certain strength, wherein the more concrete is poured and the more compensation is performed.
And after the strength of the high-pier cast-in-place box girder meets the requirement, sequentially removing the cast-in-place box girder template 22, the bottom formwork girder 4, the Bailey girder 3, the cross beam 2, the electric hydraulic jack 1, the hoop support and the upright post support, and backfilling the through hole 9 on the high pier 13.
Claims (7)
1. Cast-in-place box girder support system, its characterized in that: comprises an upright post support, a hoop support, an electric hydraulic jack (1), a cross beam (2), a Bailey beam (3) and a bottom mould beam (4); the upright post support mainly comprises two steel upright posts (5) and a foundation (6), wherein the steel upright posts (5) are provided with electric hydraulic jacks (1), an upright post tie beam (7) is arranged between the two steel upright posts (5), and the foundation (6) is arranged at the tip of a high-level area of a steep terrain (8); a high pier (13) is arranged in a low-level area of the steep terrain (8); the hoop support mainly comprises a through hole (9), an L-shaped hoop plate (10), a stiffening rib (11) and a split bolt (12), the through hole (9) is reserved in a high pier (13), the L-shaped hoop plate (10) is provided with a bolt reserved hole and the stiffening rib (11), and the split bolt (12) is arranged in the through hole (9) and the bolt reserved hole; all be equipped with crossbeam (2) on electro-hydraulic jack (1) at steel stand (5) top and the staple bolt support electro-hydraulic jack (1) at top, crossbeam (2) top sets up bailey roof beam (3), and bailey roof beam (3) top sets up end mould roof beam (4), and high mound (13) top sets up support (20), and end mould roof beam (4) and support (20) top set up cast-in-place case beam mold board (22).
2. The cast-in-place box beam support system of claim 1, wherein: if the span of the cross beam (2) is too large, a prestressed Bailey beam is adopted, end plates (14) are arranged at two ends of the Bailey beam (3), rib holes (15), prestressed ribs (16) and an anchorage device (17) are arranged at the lower parts of the end plates (14), and the prestressed ribs (16) penetrate through the rib holes (15) and the anchorage device (17).
3. The cast-in-place box beam support system of claim 1, wherein: the electro-hydraulic jack (1) is provided with a base (18) for bolting and is bolted on the upright post support and the hoop support.
4. The cast-in-place box beam support system of claim 1, wherein: the bottom of the cross beam (2) is provided with a groove (19) and is butted with a plunger (21) of the electric hydraulic jack (1).
5. The cast-in-place box beam support system of claim 1, wherein: the top of the bottom mould beam (4) is flush with the top of the support (20) on the high pier (13).
6. The cast-in-place box beam support system of claim 1, wherein: the section of the steel upright post (5) is a round corner rectangle.
7. A construction method of a cast-in-place box girder support system based on the steel plate frame as claimed in claim 1 is characterized in that: the method comprises the following steps:
1) when the high pier (13) is constructed, a through hole (9) is reserved at a proper position at the upper part of the high pier, then L-shaped hoop plates (10) are arranged on two sides of the through hole (9), stiffening ribs (11) and bolt reserved holes are arranged in the L-shaped hoop plates (10), and split bolts (12) are arranged through the through hole (9) and the bolt reserved holes to form a hoop support;
2) in a steep terrain (8) between two spans of a pier column of a high pier (13), searching an area suitable for construction of a steel upright column (5) and a foundation (6) thereof, constructing the foundation (6), erecting two steel pipe columns, fixing the steel upright columns (5) by using the steel pipe columns, and arranging upright column tie beams (7) between the steel upright columns (5);
3) the hoop supports and the steel upright posts (5) are respectively provided with an electric hydraulic jack (1);
4) respectively placing a cross beam (2) on the hoop support and the electric hydraulic jack (1) of the steel upright post (5), wherein the bottom of the cross beam (2) is provided with a groove (19) and is butted with a plunger (21) of the electric hydraulic jack (1);
5) the Bailey beam (3) is hung on the cross beam (2) supported by the hoop, the support (20) is placed at the top of the high pier (13), and the Bailey beam (3) is also hung on the cross beam (2) supported by the upright post; if the span of the cross beam (2) is too large, a prestressed Bailey beam is adopted; the prestressed Bailey beam is characterized in that end plates (14) are arranged at two ends of a Bailey beam (3), and prestress is applied through reinforcement holes (15) at the lower part of the end plates (14), prestressed reinforcements (16) and an anchorage device (17);
6) arranging bottom mould beams (4) on the Bailey beam (3) according to a certain interval, and then gradually arranging a cast-in-situ box beam template (22), a reinforcing steel bar and a prestress system on the bottom mould beams (4);
7) the method comprises the following steps of pouring concrete, starting the electric hydraulic jack (1) to perform automatic height compensation, and applying prestress after the concrete is poured and reaches a certain strength, wherein the compensation is increased along with the increase of the poured concrete;
8) and after the strength of the high-pier cast-in-place box girder meets the requirement, sequentially removing the cast-in-place box girder template (22), the bottom formwork girder (4), the Bailey girder (3), the cross beam (2), the electric hydraulic jack (1), the hoop support and the upright post support, and backfilling the through holes (9) in the high piers (13) with concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925909.0A CN110593115A (en) | 2019-09-27 | 2019-09-27 | Cast-in-place box girder support system and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925909.0A CN110593115A (en) | 2019-09-27 | 2019-09-27 | Cast-in-place box girder support system and construction method thereof |
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| CN110593115A true CN110593115A (en) | 2019-12-20 |
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| CN201910925909.0A Pending CN110593115A (en) | 2019-09-27 | 2019-09-27 | Cast-in-place box girder support system and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152248A (en) * | 2021-01-06 | 2021-07-23 | 中铁大桥局集团有限公司 | High pier support structure and aqueduct construction method |
| CN115467465A (en) * | 2022-09-13 | 2022-12-13 | 中铁上海工程局集团有限公司 | Subway station steel support assembly type tie beam and construction process thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200240457Y1 (en) * | 2001-04-25 | 2001-10-12 | 코벡주식회사 | Frame for substitu ting steel girder of a railway bridge for concrete slab |
| CN206941412U (en) * | 2017-06-29 | 2018-01-30 | 中铁十七局集团第六工程有限公司 | The high pier cast-in-situ beam anchor ear rod iron sectional shelf-unit of highway |
| CN108999085A (en) * | 2018-07-20 | 2018-12-14 | 浙江交工宏途交通建设有限公司 | Sea area construction of cast-in-situ box-beam bracket and sea area construction of cast-in-situ box-beam method |
| CN109356040A (en) * | 2018-09-29 | 2019-02-19 | 中铁二局集团有限公司 | A kind of high pier group of mean people radius curve Cast-in-situ Beam Bailey beam rack construction system |
| CN109972531A (en) * | 2019-05-13 | 2019-07-05 | 中铁二十四局集团安徽工程有限公司 | It is a kind of for improving the external prestressing device of Bailey beam falsework span |
| CN209194354U (en) * | 2018-11-22 | 2019-08-02 | 中交路桥建设有限公司 | High-altitude long-span binder base-supporting shellfish thunder support construction |
| CN209228054U (en) * | 2018-10-08 | 2019-08-09 | 恒德建设有限公司 | Large cantilever combined type anchors Bailey beam operation platform |
| CN211036710U (en) * | 2019-09-27 | 2020-07-17 | 宁波大学 | Cast-in-place box girder support system |
-
2019
- 2019-09-27 CN CN201910925909.0A patent/CN110593115A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200240457Y1 (en) * | 2001-04-25 | 2001-10-12 | 코벡주식회사 | Frame for substitu ting steel girder of a railway bridge for concrete slab |
| CN206941412U (en) * | 2017-06-29 | 2018-01-30 | 中铁十七局集团第六工程有限公司 | The high pier cast-in-situ beam anchor ear rod iron sectional shelf-unit of highway |
| CN108999085A (en) * | 2018-07-20 | 2018-12-14 | 浙江交工宏途交通建设有限公司 | Sea area construction of cast-in-situ box-beam bracket and sea area construction of cast-in-situ box-beam method |
| CN109356040A (en) * | 2018-09-29 | 2019-02-19 | 中铁二局集团有限公司 | A kind of high pier group of mean people radius curve Cast-in-situ Beam Bailey beam rack construction system |
| CN209228054U (en) * | 2018-10-08 | 2019-08-09 | 恒德建设有限公司 | Large cantilever combined type anchors Bailey beam operation platform |
| CN209194354U (en) * | 2018-11-22 | 2019-08-02 | 中交路桥建设有限公司 | High-altitude long-span binder base-supporting shellfish thunder support construction |
| CN109972531A (en) * | 2019-05-13 | 2019-07-05 | 中铁二十四局集团安徽工程有限公司 | It is a kind of for improving the external prestressing device of Bailey beam falsework span |
| CN211036710U (en) * | 2019-09-27 | 2020-07-17 | 宁波大学 | Cast-in-place box girder support system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152248A (en) * | 2021-01-06 | 2021-07-23 | 中铁大桥局集团有限公司 | High pier support structure and aqueduct construction method |
| CN115467465A (en) * | 2022-09-13 | 2022-12-13 | 中铁上海工程局集团有限公司 | Subway station steel support assembly type tie beam and construction process thereof |
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