CN112411343B - Composite support and erection method of cast-in-place box girder for super-high passable curve in mountainous area - Google Patents
Composite support and erection method of cast-in-place box girder for super-high passable curve in mountainous area Download PDFInfo
- Publication number
- CN112411343B CN112411343B CN202011372461.3A CN202011372461A CN112411343B CN 112411343 B CN112411343 B CN 112411343B CN 202011372461 A CN202011372461 A CN 202011372461A CN 112411343 B CN112411343 B CN 112411343B
- Authority
- CN
- China
- Prior art keywords
- cast
- bailey
- column
- support assembly
- curve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000002131 composite material Substances 0.000 title claims 4
- 229910000831 Steel Inorganic materials 0.000 claims description 68
- 239000010959 steel Substances 0.000 claims description 68
- 238000009826 distribution Methods 0.000 claims description 25
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000011425 bamboo Substances 0.000 claims description 6
- 239000011120 plywood Substances 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 abstract description 14
- 238000010276 construction Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 238000009432 framing Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000007704 transition Effects 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The application discloses a mountain area ultra-high guarantor curve cast-in-situ box girder combined bracket and a erecting method, the mountain area ultra-high guarantor curve cast-in-situ box girder combined bracket comprises: the vertical column support assembly is fixedly arranged on the side face of the pier column, the vertical column support assembly is perpendicular to a tangent line of a curve section between adjacent pier columns, the Bailey beam is vertically and fixedly arranged at the upper end of the vertical column support assembly, the distributing beam is fixedly arranged at the upper end of the Bailey beam, and the bowl buckle support assembly is fixedly arranged at the upper end of the distributing beam. The space between the upright post brackets of the adjacent pier posts in the related art is not equal, so that the bailey beams arranged on the upright post brackets are different in length, and the bearing performance of the bailey beams cannot be fully utilized.
Description
Technical Field
The application relates to the field of bridge construction, in particular to a mountain area ultrahigh-pass-keeping curve cast-in-situ box girder combined bracket and a building method.
Background
Cast-in-situ beams are a common design form in bridge engineering and are mostly used for curve line shape department design. Because the highest erection distance of the traditional plate buckle support is recommended to be 24m according to the standard requirement, a new support design form is required to be adopted for the erection of the cast-in-situ box girder support with the height exceeding 24m, and the normal passing of vehicles is required to be ensured at the support according to the project traffic requirement. The invention discloses a box girder cast-in-situ support suitable for curves and longitudinal and transverse slopes and a construction method thereof, and particularly discloses a box girder cast-in-situ support suitable for curves and longitudinal and transverse slopes and a construction method thereof, wherein the box girder cast-in-situ support comprises upright post supports, bowl buckle type full framing and other parts, the upright post supports are arranged along the extension curve of a bridge, the bowl buckle type full framing comprises a plurality of unit supports, the unit supports are mutually overlapped along the extension direction of the bridge, and the upper end and the lower end of the bowl buckle type full framing are respectively provided with adjustable brackets for adjusting the height; the construction method comprises the following steps: s1: manufacturing a stand column bracket; s2: manufacturing a bowl buckle type full framing; s3: manufacturing a ground surface supporting plate and connecting the ground surface supporting plate with a soil-entering pipe pile; s4: burying a soil pipe pile; s5: installing a stand column bracket; s6: and installing a pile top cross beam, a bailey frame and a distribution beam. S7: installing a bowl buckle type full framing; s8: installing a top beam; s9: and (5) installing a backing plate. Although this patent solves the problem of the bracket being kept open, the spacing between the pillar brackets of adjacent pillars is not equal, so the bailey beams mounted on the pillar brackets are different in length, and the bailey beams satisfying the longest spacing are generally uniformly used for mounting in view of this situation, so the length of the bailey beams is too long for the short-spacing portion, resulting in the failure to fully utilize the bearing performance of the bailey beams.
Aiming at the problems that the distances between upright post brackets of adjacent pier columns in the related art are not equal, and the length of the bailey beam is too long for a short distance part, and the bearing performance of the bailey beam cannot be fully utilized, no effective solution is proposed at present.
Disclosure of Invention
The application mainly aims to provide a mountain ultrahigh keep-through curve cast-in-situ box girder combined support and a building method, which are used for solving the problems that the distance between upright post supports of adjacent pier columns in the related art is not equal, and the bearing performance of the bailey girder cannot be fully utilized for a short distance part because the length of the bailey girder is too long.
In order to achieve the above purpose, the application provides a cast-in-situ box girder combined bracket with an ultra-high guarantor curve in a mountain area, which comprises: the vertical column support assembly is fixedly arranged on the side face of the pier column, the vertical column support assembly is perpendicular to a tangent line of a curve section between adjacent pier columns, the Bailey beam is vertically and fixedly arranged at the upper end of the vertical column support assembly, the distributing beam is fixedly arranged at the upper end of the Bailey beam, and the bowl buckle support assembly is fixedly arranged at the upper end of the distributing beam.
Further, the column support assembly is perpendicular to a tangent line of a midpoint of a curved segment between adjacent piers.
Further, the upright post support assembly comprises a plurality of steel pipe upright posts fixedly arranged on the side surfaces of the pier posts and a first spandrel girder fixedly arranged at the upper end of the steel pipe upright posts, the first spandrel girder is perpendicular to a tangent line of the midpoint of a curve segment between the adjacent pier posts, and the bailey girder is vertically fixedly arranged on the first spandrel girder.
Further, the lower end of the steel pipe column is fixedly arranged on a bearing platform of the pier column.
Further, the upright post bracket components positioned at the two sides of the pier column are fixedly connected through the second spandrel girder.
Further, the second spandrel girder is fixedly connected with the first spandrel girder through a third spandrel girder which is obliquely arranged.
Further, a limiting piece is transversely arranged between the steel pipe upright post and the box girder pier, a first end of the limiting piece is fixedly connected with the steel pipe upright post, and a second end of the limiting piece is in abutting connection with the pier.
Further, limit steel bars are welded at the upper ends of the steel pipe upright columns, and the first spandrel girder is welded with the limit steel bars.
Further, the bowl-buckling support assembly comprises a bowl-buckling scaffold, the bowl-buckling scaffold is provided with inverted buckling channel steel, square timber is paved at the upper end of the channel steel, and a bamboo plywood is paved at the upper end of the square timber and forms a bowl-shaped surface.
Further, the distance between the steel pipe columns is 270cm, and the steel pipe columns are provided with anchor clamps, channel steel parallel joints and diagonal braces for welding connection.
According to another aspect of the application, a method for erecting a mountain area ultrahigh-pass-keeping curve cast-in-situ box girder combined bracket is provided, which comprises the following steps:
obtaining a curve section of a box girder between adjacent pier columns, and obtaining a tangent line of the curve section;
setting up upright post bracket components perpendicular to the tangential line at two ends of the tangential line;
Setting up a Bailey beam on the upright post support assembly, wherein the Bailey beam is perpendicular to the upright post support assembly;
And erecting a distribution beam on the Bailey beam, and erecting a bowl buckle bracket assembly on the distribution beam.
Further, the tangent line is a tangent line taking the midpoint of the curve segment as a tangent point.
In the embodiment of the application, through the upright post bracket assembly fixedly arranged on the side surface of the pier, the upright post bracket assembly is perpendicular to the tangent line of the curve section between the adjacent pier, the beret beam is vertically and fixedly arranged at the upper end of the upright post bracket assembly, the distribution beam is fixedly arranged at the upper end of the beret beam, the bowl buckle bracket assembly is fixedly arranged at the upper end of the distribution beam, the position of the upright post bracket assembly can be determined according to the linearity of the curve section between the adjacent pier, so that the two upright post bracket assemblies of the adjacent pier are equidistant, and a plurality of groups of beret beams with the same length can be arranged on the upright post bracket assembly, thereby realizing the technical effect of fully utilizing the bearing capacity of the beret beams, and further solving the problems that the distance between the upright post brackets of the adjacent pier in the related technology is not equal, and the length of the beret beam is overlong for the short distance part, and the bearing capacity of the beret beam cannot be fully utilized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application. In the drawings:
FIG. 1 is a schematic top view of an embodiment of the present application;
FIG. 2 is another schematic top view of an embodiment of the present application;
FIG. 3 is a schematic side view of an embodiment of the present application;
FIG. 4 is a schematic diagram of a front view structure according to an embodiment of the present application;
The novel building scaffold comprises a bearing platform 1, a stand column 2, a stand column bracket assembly 21, a steel pipe stand column 22, a first bearing beam, a pier column 3, a third bearing beam 4, a second bearing beam 5, a distribution beam 6, a Bailey beam 7, a bowl-shaped scaffold 9, a back-off channel steel 10, a bamboo plywood 11 and square timber 12.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein.
In the present application, the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", and the like are based on the azimuth or positional relationship shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "disposed," "configured," "connected," "secured," and the like are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 4, the embodiment of the application provides a cast-in-situ box girder combined bracket with an ultra-high guarantor curve in a mountain area, which comprises: the vertical column support assembly 2 is fixedly arranged on the side face of the pier column 3, the vertical column support assembly 2 is perpendicular to a tangent line of a curve section between the adjacent pier columns 3, the Bailey beam 7 is vertically and fixedly arranged at the upper end of the vertical column support assembly 2, the distribution beam 6 is fixedly arranged at the upper end of the Bailey beam 7, and the bowl buckle support assembly (not shown in fig. 1) is fixedly arranged at the upper end of the distribution beam 6.
The upright post support assembly 2 can adopt a support structure in the related art, and in this embodiment, the installation position of the upright post support assembly 2 is improved, specifically, the upright post support assembly 2 is installed on the side surface of the pier post 3 of the box girder, and the specific position of the upright post support assembly is a tangent line perpendicular to a curve section between the adjacent pier posts 3, so that the upright post support assembly 2 is obliquely arranged relative to the pier posts 3. Because the upright post bracket assemblies 2 on opposite sides of the adjacent pier posts 3 are perpendicular to the same tangent line, the distance between the upright post bracket assemblies is equal, namely, the two upright post bracket assemblies 2 can respectively form rectangular left and right sides, the upright post bracket assemblies 2 on two sides of the pier posts 3 are also isosceles trapezoid left and right sides, the bailey beams 7 fixedly arranged on the upright post bracket assemblies 2 form rectangular upper and lower sides, the length of the bailey beams 7 is matched with the distance between the two upright post bracket assemblies 2, the bearing performance of the bailey beams 7 can be fully utilized, and the distribution beam 6 and the bowl buckle bracket assemblies can adopt structures in related technologies, and are not repeated herein. The present embodiment solves the problem that the intervals between the column brackets of the adjacent piers 3 are not equal in length, resulting in different lengths of the bailey beams 7 mounted on the column brackets, and the bearing performance of the bailey beams 7 cannot be fully utilized in the related art.
As shown in fig. 1 to 4, the pillar brace assembly 2 is perpendicular to the tangent line of the midpoint of the curved section between adjacent pillars 3, so that the entire brace structure is more stable.
As shown in fig. 1 to 4, the upright post bracket assembly 2 comprises a plurality of steel pipe upright posts 21 fixedly arranged on the side surfaces of the pier posts 3 and a first spandrel girder 22 fixedly arranged at the upper ends of the steel pipe upright posts 21, wherein the first spandrel girder 22 is perpendicular to a tangent line of a midpoint of a curve segment between the adjacent pier posts 3, and the beret girder 7 is vertically fixedly arranged on the first spandrel girder 22. The upright post bracket components 2 positioned on two sides of the pier column 3 are fixedly connected through the second spandrel girder 5, and the second spandrel girder 5 is fixedly connected with the first spandrel girder 22 through the third spandrel girder 4 which is obliquely arranged, so that the upright post bracket components 2 on two sides of the pier column 3 are connected into a whole.
The lower end of the steel pipe stand column 21 is fixedly arranged on the bearing platform 1 of the pier column 3, the advantage of designing the bearing platform 1 is fully utilized, the steel pipe stand column 21 is arranged on the top surface of the existing bearing platform 1, the bearing capacity and economy of stress are improved, and the space for erecting a bracket is saved. The steel pipe column 21 adopts phi 609 x 16mm steel pipes, 5 steel pipes are arranged in a row, the distance is 270cm, the steel pipe column 21 adopts a shaping standard section manufactured by a professional manufacturer, the largest section is 6m, and flanges are arranged at two ends. And the steel pipe pile is provided with a hoop which is connected with the [20a channel steel in parallel and the diagonal bracing in a welding way. The flat-connected mode adopts a zigzag shape, and a simple platform is erected on the flat-connected mode and is used as an operation platform for lengthening the steel pipe upright post 21.
The first spandrel girder 22 and the second spandrel girder 5 both adopt double-limb I36a I-steel as a bearing beam. The Bailey beams 7 are double-row single-layer unreinforced Bailey beams 7, the distance between two outside Bailey beams 7 is 45cm, and the distance between the Bailey beams 7 in the middle group is 90cm. The bailey beam 7 is connected and fixed by adopting 45 flower frames and 90 flower frames respectively, so as to prevent transverse instability. The center distance between the groups of the Bailey beams 7 is 180cm, and two adjacent groups of the Bailey beams 7 are connected through L10 angle steel scissor struts in a bolting way, so that the whole structure of the Bailey beams 7 is ensured to be stable.
The distribution beams 6 are I14I-steel, the distance between the positions of the middle cross beam and the middle cross beam is 4 multiplied by 60cm, the distance between the rest positions is 90cm, and the distribution beams 6 at the transition sections at the tops of the pier columns 3 are arranged according to 60cm due to the large arc shape of the ramp bridge.
As shown in fig. 1 to 4, a limiting piece is transversely arranged between the steel pipe upright post 21 and the box girder pier column 3, a first end of the limiting piece is fixedly connected with the steel pipe upright post 21, and a second end of the limiting piece is in abutting connection with the pier column 3. The limiting piece is used for connecting the steel pipe upright post 21 and the pier post 3, so that lateral force is born, and stability of the bracket is improved. The upper end welding of steel pipe stand 21 has spacing reinforcing bar, and first spandrel girder 22 and spacing reinforcing bar welding improve the structural stability of first spandrel girder 22.
As shown in fig. 1 to 4, the bowl-buckle bracket component comprises a bowl-buckle scaffold 9, a back-buckle channel steel 10 on the bowl-buckle scaffold 9, a square timber 12 is paved at the upper end of the channel steel, a bamboo plywood 11 is paved at the upper end of the square timber 12, and a bowl-shaped surface is formed.
The bowl-buckled scaffold 9 comprises a steel pipe: steel pipe specificationIs supported on the I14I-steel distribution beam 6. Longitudinal spacing: the transverse beams in the box Liang Kuazhong are arranged in an encrypted mode, the distance is 60cm, and the rest is 90cm. Lateral spacing: 90cm, 60cm in longitudinal and transverse spacing below the flange plates of the box girder at the pier top side, and a transverse rod: every 120cm from bottom to top, a sweeping rod is arranged: the steel pipe fastener type sweeping rod and the diagonal bracing are longitudinally and transversely arranged at the bottom of the vertical rod: 5 groups of scissors are arranged on the longitudinal single-row upright posts, every 4 rows are arranged in a row, and 5 rows are taken as a total, wherein the included angle between the inclined struts of the transverse beam encryption section in the box Liang Kuazhong and the horizontal direction is 40 degrees, and the included angle between the other parts is 48 degrees; 3 groups of scissors are arranged on the transverse single-row upright posts, and each 3 rows are arranged in one row, and 7 rows total.
The bottom die bowl buckle support jacking is longitudinally provided with a back buckle [10 channel steel ], 10 multiplied by 10cm square timber 12 is transversely paved on the upper part, the distance is 30cm, and then a bamboo plywood 11 with the thickness of 1.5cm is paved to form a template system. In order to prevent slurry leakage, a double-sided adhesive tape with the thickness of 5 mm is stuck between the template joints. The back-off [10 ] channel steel is provided with a clamping reinforcing steel bar for fixing the position of the square timber 12.
In order to control the line type of the cast-in-situ box girder, the wing plate template and the side mould are manufactured by vertically and horizontally arranging double-layer 10 multiplied by 10cm square timber 12 and processing a 1.5cm thick bamboo plywood 11, the lower part of the square timber 12 is supported by a bowl-buckling type scaffold 9, and a scaffold steel pipe is supported on an I14 distribution girder 6.
As shown in fig. 1 to 4, according to another aspect of the present application, there is provided a method for erecting a cast-in-place box girder combined bracket of an ultra-high keep-through curve in a mountain area, comprising the steps of:
obtaining a curve section of a box girder between adjacent pier columns 3, and obtaining a tangent line of the curve section, wherein the tangent line is a tangent line taking the midpoint of the curve section as a tangent point;
Two ends of the tangent line are erected with upright post bracket components 2 which are vertical to the tangent line;
erecting a bailey beam 7 on the upright post bracket assembly 2, wherein the bailey beam 7 is perpendicular to the upright post bracket assembly 2;
The distribution beam 6 is erected on the bailey beam 7, and the bowl buckle bracket assembly is erected on the distribution beam 6.
In the erection process of the upright post bracket assembly 2, a steel pipe upright post 21 is firstly installed, the steel pipe upright post 21 is formed by splicing phi 609 multiplied by 16mm standard steel pipe joints, and flanges are arranged at two ends of the steel pipe joints. The segment lengths of 1m, 3m and 6m are matched with each other according to the height of the pier column 3. The flange plate at the bottom of the steel pipe joint and the concrete expansion foundation are adoptedExpansion bolts are connected, and the bolts are anchored in the foundation by not less than 20cm.
The steel pipe joints are connected by adopting flange plates, the thickness of welding seams of the flange plates is not smaller than that of base materials, 16 delta 10mm stiffening plates with the size of 70mm multiplied by 200mm are arranged at the joint of the steel pipes at equal intervals for reinforcement, and 16 10.9M 20 high-strength bolts are adopted between the flange plates. After the steel pipe column 21 is installed, the elevation of the column top is accurately measured, and the consistent heights of the steel pipe tops of the same joint are ensured. The plane position deviation of the steel pipe is controlled within 3cm, and the verticality is controlled within 1%.
And after the construction of the steel pipe upright posts 21 is completed, the construction of the anchor ear, the parallel connection and the pile top bearing beam among the steel pipe upright posts 21 is immediately carried out. The steel pipe columns 21 are welded and connected by adopting a tower crane and an automobile crane which are matched with each other manually through a hoop (20 a channel steel) which is horizontally connected with a hoop arranged on the steel pipe column 21. Firstly, the parallel connection and hoop position measurement lofting are carried out on the steel pipe upright post 21. Technicians actually measure the parallel connection length between piles and blanking in a rear field, and synchronously perform anchor ear installation and processing of inclined struts and pile top bearing beams.
The parallel connection and the diagonal bracing are suspended by an automobile crane, and then welded by an electric welder. The field technician checks the quality of the weld in time, and erecting the spandrel girder after the spandrel girder is qualified. The automobile crane suspends the spandrel girder to the measuring and lofting position, and then the worker installs the spandrel girder limiting device on the flange plate at the top of the steel pipe column 21, and welds the spandrel girder with the limiting device.
And then the Bailey beam 7 is installed and limited, and all parts of the Bailey beam 7 are transported to a bridge site by a transport vehicle and assembled on site. The bailey assembly is carried out according to groups, each time a group of bailey is assembled, and the bailey pieces are connected by a supporting frame.
A group of 12 m-span double-row bailey beams 7 weigh about 2.2t and are arranged on the bearing cross beam by adopting an automobile hanger. The beret beam 7 is at 90 ° to the load beam. And (5) measuring and lofting on the 2I36a spandrel girder to determine the accurate position of the bailey frame. And meanwhile, a rubber gasket is arranged, and then the bailey beam 7 is hoisted into position. The Bailey beam 7 limiting device is formed by welding [10 channel steel ].
And then laying the distribution beams 6, and installing the I10 distribution beams 6 by adopting a tower crane and an automobile crane, wherein the arrangement space of the I10 cross beams is 120cm. After the distribution beams 6 are all laid, the distribution beams 6 are longitudinally arranged at the top of the distribution beams 6 in the vertical rod holes of the upper disc buckle bracketAnd (3) welding and fixing the steel bars, uniformly arranging 5 channels to prevent the I10 distribution beam 6 from overturning, and finally, erecting the bowl buckle bracket assembly.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372461.3A CN112411343B (en) | 2020-11-30 | 2020-11-30 | Composite support and erection method of cast-in-place box girder for super-high passable curve in mountainous area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372461.3A CN112411343B (en) | 2020-11-30 | 2020-11-30 | Composite support and erection method of cast-in-place box girder for super-high passable curve in mountainous area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112411343A CN112411343A (en) | 2021-02-26 |
| CN112411343B true CN112411343B (en) | 2024-11-15 |
Family
ID=74830641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011372461.3A Active CN112411343B (en) | 2020-11-30 | 2020-11-30 | Composite support and erection method of cast-in-place box girder for super-high passable curve in mountainous area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112411343B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116289593A (en) * | 2023-03-20 | 2023-06-23 | 中铁六局集团有限公司 | A new composite support structure and construction method of small and medium-sized curved cast-in-place box girders |
| CN116971288A (en) * | 2023-09-01 | 2023-10-31 | 中铁大桥局集团有限公司 | Cast-in-situ box girder combined template system structure adopting few-bracket method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110593110A (en) * | 2019-09-25 | 2019-12-20 | 中交二公局第五工程有限公司 | Box girder cast-in-place support for curves and vertical and horizontal slopes and its construction method |
| CN214783194U (en) * | 2020-11-30 | 2021-11-19 | 中交路桥建设有限公司 | Mountain area superelevation is protected and is led to curve cast-in-place box girder sectional shelf-unit |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8234738B2 (en) * | 2010-03-15 | 2012-08-07 | Newton Bridge Solutions Ltd | Bridge construction and method of replacing bridges |
| CN102605717A (en) * | 2012-04-09 | 2012-07-25 | 中铁七局集团郑州工程有限公司 | Pier-top longitudinal support scaffolding method |
| CN102877407B (en) * | 2012-10-30 | 2014-09-24 | 河南省交通规划勘察设计院有限责任公司 | Concrete continuous box girder of corrugated steel web for curved bridge |
| CN103696374B (en) * | 2013-12-25 | 2015-10-28 | 中铁大桥勘测设计院集团有限公司 | Horizontal curve section is greatly across freely-supported steel trussed beam cantilever erection method |
| CN104099871A (en) * | 2014-06-19 | 2014-10-15 | 中铁十一局集团第二工程有限公司 | Arching structure of high large-span bridge bailey beams and construction method thereof |
| CN206143650U (en) * | 2016-10-21 | 2017-05-03 | 中国水利水电第八工程局有限公司 | Cross -line continuous beam is demolishd and is used support |
| CN108999085B (en) * | 2018-07-20 | 2020-04-21 | 浙江交工宏途交通建设有限公司 | Construction support and construction method for sea area cast-in-place box girder |
| CN109826110B (en) * | 2019-02-25 | 2020-08-04 | 中铁十九局集团有限公司 | A continuous beam swivel system with side-spanning slideways |
| CN111663449A (en) * | 2020-05-23 | 2020-09-15 | 中交路桥建设有限公司 | Combined cast-in-place box girder support system and construction method |
-
2020
- 2020-11-30 CN CN202011372461.3A patent/CN112411343B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110593110A (en) * | 2019-09-25 | 2019-12-20 | 中交二公局第五工程有限公司 | Box girder cast-in-place support for curves and vertical and horizontal slopes and its construction method |
| CN214783194U (en) * | 2020-11-30 | 2021-11-19 | 中交路桥建设有限公司 | Mountain area superelevation is protected and is led to curve cast-in-place box girder sectional shelf-unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112411343A (en) | 2021-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107090975B (en) | Formwork erecting construction method for ultrahigh large-span concrete cast-in-place beam bailey truss | |
| CN108265885B (en) | Construction method of high-large non-orthogonal large-inclination-angle special-shaped concrete inclined column | |
| CN214783194U (en) | Mountain area superelevation is protected and is led to curve cast-in-place box girder sectional shelf-unit | |
| CN216891927U (en) | Large-span double-layer combined construction steel truss arch bridge | |
| CN112411343B (en) | Composite support and erection method of cast-in-place box girder for super-high passable curve in mountainous area | |
| CN102277835A (en) | Method for constructing single-column bent cap by adopting hoop and A-frame composite system | |
| CN115387234B (en) | A formwork system and construction method for the lower cross beam of an ultra-high diamond-shaped tower pier | |
| CN114214920A (en) | Large-span double-layer combined construction steel truss arch bridge and construction method thereof | |
| JP2011157720A (en) | Method for constructing railway reinforced concrete rigid-frame structure viaduct | |
| CN215925691U (en) | Bearing support for casting No. 0 block of bridge | |
| CN222991120U (en) | A cantilever concrete structure formwork scaffolding structure | |
| CN209194354U (en) | High-altitude long-span binder base-supporting shellfish thunder support construction | |
| CN109184199B (en) | Torsion and shear resisting reinforcing method for ring beam in cast-in-place construction of 3m prestressed arch bar | |
| JP2000045231A (en) | Arch bridge erection method | |
| CN111910766B (en) | A giant long-span rigid concrete steel structure and construction method | |
| CN212895944U (en) | Cross-line skew cast-in-place construction device based on main beam being Bailey beam | |
| CN112726416A (en) | Support structure meeting field construction security and construction method | |
| CN214783302U (en) | Support structure capable of meeting on-site construction security | |
| CN213896816U (en) | Y-shaped support frame | |
| CN114837090A (en) | A combined support system and construction method for high tower beam construction | |
| CN115538335A (en) | Construction system and construction method of steel box girder with large cantilever spread warp | |
| JP2023103666A (en) | Shed and construction method thereof | |
| AU2018202577B2 (en) | A device and method for supporting a post | |
| CN215829267U (en) | Pin-connected panel bridge construction protector | |
| CN115788108B (en) | Detachable large-span steel structure non-hardening ground installation support system and installation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |