CN219117958U - Construction system for variable cross-section overpass bridge - Google Patents
Construction system for variable cross-section overpass bridge Download PDFInfo
- Publication number
- CN219117958U CN219117958U CN202223417221.8U CN202223417221U CN219117958U CN 219117958 U CN219117958 U CN 219117958U CN 202223417221 U CN202223417221 U CN 202223417221U CN 219117958 U CN219117958 U CN 219117958U
- Authority
- CN
- China
- Prior art keywords
- bridge
- support
- hoisting
- active control
- torsion
- 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
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a construction system for a variable cross-section overpass bridge, which comprises: the bridge body is characterized by comprising a construction platform, a deformation active control support, a hoisting fixing support and a hoisting steel rope, wherein the construction platform is arranged below the bridge body of the bridge body, the deformation active control support is arranged on the construction platform, the hoisting fixing support is arranged on the bridge body of the bridge body, and the hoisting steel rope is arranged on the hoisting fixing support. The deformation active control support comprises an oil cylinder, a support torsion spherical joint and a movable torsion joint, wherein the support torsion spherical joint is arranged on the oil cylinder, and a flexible rubber layer is bonded at the top end of the support torsion spherical joint. The utility model can actively adjust the displacement height through the deformation active control support, so that the displacement height is consistent with the line shape of a preset bridge. The deformation active control support has a curved surface supporting effect, linear precision compensation can be carried out through the deformation active control support, and the efficiency of the prestressed reinforcement is improved. The construction platform is increased, and the operation space is expanded.
Description
Technical Field
The utility model relates to an active control construction system for displacement of a variable-section cast-in-situ concrete bridge, and belongs to the technical field of bridge construction.
Background
The overpass bridge is used as a bridge for relieving urban traffic pressure and improving road transportation efficiency, and is an essential highway bridge building for improving traffic in cities along with urban development and continuous increase of the number of automobiles.
Along with the continuous development of bridge design construction technology and the advantages of material saving and small occupied space of the variable-section bridge, more and more variable-section bridge projects are popular. For cast-in-situ concrete bridges, the pre-camber cannot be set as in the case of assembled bridges, but the linear accuracy can be ensured only by setting pre-stressed steel bars, but the method has the advantages of lower efficiency, complicated construction steps and poor effect. Therefore, improvement of traditional construction equipment is needed to meet the construction precision requirement of the variable-section cast-in-situ concrete bridge and improve the bridge construction technology.
Disclosure of Invention
The utility model aims to provide a construction system for a variable cross-section bridge span line so as to solve the problem of controlling the line shape precision of the variable cross-section bridge.
In order to solve the problems, the utility model adopts the following technical scheme:
a construction system for a variable cross-section overpass bridge, comprising:
the construction platform is arranged below the bridge body of the overpass bridge;
the deformation active control supports are arranged on the construction platform;
the hoisting fixing support is arranged on the bridge body of the overline bridge;
and the hoisting steel rope is arranged on the hoisting fixed support and used for hoisting the template assembly.
Further, the deformation active control support comprises an oil cylinder, a supporting torsion spherical joint and a movable torsion joint, wherein the supporting torsion spherical joint is arranged on the oil cylinder, the lower end of the movable torsion joint is provided with a concave spherical surface, the movable torsion joint is arranged on the supporting torsion spherical joint through the spherical surface, and the top end of the movable torsion joint is planar.
Further, a flexible rubber layer is adhered to the top end of the movable torsion joint.
Further, one end of the hoisting fixing support is provided with a hoisting frame fixing section, and the hoisting fixing support is arranged on the bridge body of the overline bridge through the hoisting frame fixing section.
Further, the construction platform is of a steel frame structure, and two ends of the construction platform are installed below the bridge body of the overpass bridge through construction platform supports.
The construction platform has the working principle that the construction platform is used for providing a construction operation platform, the hoisting fixing support and the hoisting steel rope are used for hoisting the template assembly and are matched with concrete pouring, and after the concrete is in place, the displacement height can be actively adjusted through the deformation active control support, so that the displacement height is consistent with the line shape of a preset bridge.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model can realize displacement control, the deformation active control support has a curved surface supporting effect, linear precision compensation can be carried out through the deformation active control support, and the efficiency of the prestressed reinforcement is improved. The construction platform is increased, and the operation space is expanded.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is a schematic structural view of a deformation active control support according to the present utility model.
FIG. 3 is an exploded view of a deformation active control mount according to the present utility model
Fig. 4 is a cut-away view of a movable torsion joint according to the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples. The objects, technical solutions and advantages of the present utility model will become more apparent from the following description. It should be noted that the described embodiments are preferred embodiments of the utility model, and not all embodiments.
Referring to fig. 1, a construction system for a variable cross-section overpass bridge comprises a construction platform 6, a plurality of deformation active control supports 5, a hoisting fixing support 10 and a hoisting steel rope 1.
The two ends of the construction platform 6 are arranged below the bridge body 12 of the overpass bridge through the construction platform brackets 7. The deformation active control support 5 is placed on the construction platform 6; one end of the hoisting fixing support 10 is provided with a hoisting frame fixing section 8, and the hoisting fixing support 10 is arranged on the overline bridge body 12 through the hoisting frame fixing section 8. The hoisting steel rope 1 is arranged on the hoisting fixed support 10 and is used for hoisting the template assembly. The formwork assembly comprises an upper formwork 2, an end formwork 3 and a bottom formwork 4.
As shown in fig. 2 to 4, the deformation active control support 5 includes an oil cylinder 51, a supporting torsion spherical joint 52, and a movable torsion spherical joint 54, the supporting torsion spherical joint 52 is mounted on the oil cylinder 51, a concave spherical surface 541 is disposed at a lower end of the movable torsion joint 54, the movable torsion joint 54 is mounted on the supporting torsion spherical joint 52 through the spherical surface 541, and a top end of the movable torsion joint 54 is planar. A flexible rubber layer 53 is bonded to the top end of the movable torsion joint 54. The flexible rubber layer 53 serves to protect the bridge from damage during casting.
The application method of the utility model is as follows:
when the bridge pier positions on two sides of the overpass bridge are all constructed, firstly constructing a construction platform bracket 7, assembling a construction platform 6 on the construction platform bracket, and arranging a deformation active control support 5; and simultaneously constructing a hoisting fixing bracket 10 and installing a hoisting bracket fixing section 8. Then, the upper template 2, the end template 3, the bottom template 4 and the side template 9 of the template assembly are hoisted through the hoisting steel rope 1, and steel bars are erected after the template assembly is hoisted in place, and preliminary fixing is carried out through the template fixing steel rope 11, so that the template is in a pouring state. Next, pouring concrete, after the concrete is in place, actively adjusting displacement through the deformation active control support 5 to enable the displacement to be consistent with the line shape of a preset bridge, locking the oil cylinder 51 of the deformation active control support, tightening and fixing the hoisting steel rope 1, then retracting the oil cylinder of the deformation active control support, completing the conversion of a stress system, and finally carrying out concrete maintenance.
The above description is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and it is obvious that any person skilled in the art can easily think of alternatives or modifications based on the above embodiments to obtain other embodiments, which are all covered by the scope of the present utility model.
Claims (5)
1. A construction system for a variable cross-section overpass bridge, comprising:
the construction platform is arranged below the bridge body of the overpass bridge;
the deformation active control supports are arranged on the construction platform;
the hoisting fixing support is arranged on the bridge body of the overline bridge;
and the hoisting steel rope is arranged on the hoisting fixed support and used for hoisting the template assembly.
2. The construction system for a variable cross-section overpass bridge of claim 1, wherein:
the deformation active control support comprises an oil cylinder, a support torsion spherical joint and a movable torsion joint, wherein the support torsion spherical joint is arranged on the oil cylinder, the lower end of the movable torsion joint is provided with a concave spherical surface, the movable torsion joint is arranged on the support torsion spherical joint through the spherical surface, and the top end of the movable torsion joint is planar.
3. The construction system for a variable cross-section overpass bridge of claim 2, wherein:
the top end of the movable torsion joint is adhered with a flexible rubber layer.
4. The construction system for a variable cross-section overpass bridge of claim 1, wherein:
one end of the hoisting fixing support is provided with a hoisting frame fixing section, and the hoisting fixing support is arranged on the bridge body of the overline bridge through the hoisting frame fixing section.
5. The construction system for a variable cross-section overpass bridge of claim 1, wherein:
the construction platform is of a steel frame structure, and two ends of the construction platform are installed below the bridge body of the overline bridge through construction platform brackets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223417221.8U CN219117958U (en) | 2022-12-20 | 2022-12-20 | Construction system for variable cross-section overpass bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223417221.8U CN219117958U (en) | 2022-12-20 | 2022-12-20 | Construction system for variable cross-section overpass bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219117958U true CN219117958U (en) | 2023-06-02 |
Family
ID=86519934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223417221.8U Active CN219117958U (en) | 2022-12-20 | 2022-12-20 | Construction system for variable cross-section overpass bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219117958U (en) |
-
2022
- 2022-12-20 CN CN202223417221.8U patent/CN219117958U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103243654B (en) | Mounting method for steel anchor beam of cable-stayed bridge and assembly jig and cable bent tower mounting platform used in method | |
| CN114214920B (en) | Large-span double-layer built-up steel truss arch bridge and construction method thereof | |
| CN215329323U (en) | Light combined pier hoisted in small tonnage | |
| CN219117958U (en) | Construction system for variable cross-section overpass bridge | |
| CN111188278A (en) | Jig frame structure, jig frame assembly and construction method | |
| CN209428971U (en) | The Y structure construction bracket structure of battered leg stress can be adjusted in real time | |
| CN115653285B (en) | Template support pre-assembled translation structure and working method thereof | |
| CN217298606U (en) | Mid-span shaftless force connecting device of ground anchor type cable-stayed bridge | |
| CN116065476A (en) | Template-free ultra-large-scale UHPC-CSW-NC combined bent cap and construction method | |
| CN214737289U (en) | Mounting structure for assembled elevated road and bridge | |
| CN115637657A (en) | Construction method for side-span cast-in-place section and side-span closure section of suspension casting continuous beam by using hanging basket construction | |
| CN211769949U (en) | Movable arm type tower crane underframe ballast type foundation | |
| CN112323647B (en) | Rigid frame bridge hanging basket suspension casting system and construction method thereof | |
| CN114370008A (en) | Reinforcing system for rapidly improving bearing capacity of bridge and construction method thereof | |
| CN111186780A (en) | Movable arm type tower crane underframe weight type foundation and construction method | |
| CN113073541A (en) | Combined capping beam suitable for continuous bridge deck construction, bridge and construction process | |
| CN111979924A (en) | Arch ring construction structure and construction method | |
| CN221276364U (en) | Reinforced structure of concrete simply supported beam | |
| CN206034272U (en) | External prestress steel anchor | |
| CN110700122A (en) | A antidumping reinforced structure for rectangle single-column mound bridge | |
| CN201016155Y (en) | Semi-continuous girder bridge | |
| CN221589297U (en) | Internal mold supporting device for pouring box girder | |
| CN110747741A (en) | Wet joint construction template and construction method | |
| CN221422834U (en) | Railway shade canopy with adjustable height | |
| CN213233165U (en) | Bridge auxiliary pier support installation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |