CN211228068U - Festival segmentation pier convenient to installation - Google Patents
Festival segmentation pier convenient to installation Download PDFInfo
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- CN211228068U CN211228068U CN201922050370.7U CN201922050370U CN211228068U CN 211228068 U CN211228068 U CN 211228068U CN 201922050370 U CN201922050370 U CN 201922050370U CN 211228068 U CN211228068 U CN 211228068U
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- pier
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- bearing platform
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- bridge pier
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Abstract
The utility model relates to a sectional type pier convenient to install, which effectively solves the problems of long construction period, overlarge template consumption and high energy consumption; the technical scheme for solving the problem is that the bridge pier comprises a bridge pier bearing platform section, a plurality of bridge pier bearing platform sections and a bridge pier top section, wherein the upper part of the bridge pier bearing platform section is provided with mortise ports, and high-strength lead screws and steel anchor plates are embedded in four corners of the upper part of the bridge pier bearing platform section; the lower part of the middle section of the pier is provided with a tenon, the upper part of the middle section of the pier is provided with a mortise, four corners of the upper part of the middle section of the pier are embedded with high-strength lead screws and steel anchor plates, and four corners of the lower part of the middle section of the pier are reserved with lead screw pore canals and anchor boxes; the lower part of the pier top section of the pier is provided with a tenon, and four corners of the lower part are provided with a screw hole channel and an anchor box; the lower extreme of every lead screw and all rather than the steel anchor slab fixed connection that corresponds, upper end threaded connection have fastening nut, the utility model discloses the atress is clear and definite, and it is reliable to pass power, is favorable to accelerating construction speed.
Description
Technical Field
The utility model relates to a bridge construction field, especially a festival segmentation pier convenient to installation.
Background
The essence of the assembled bridge is that the components (component sections) to be manufactured are manufactured in a factory, then the components are transported to a construction site through a transport tool, and the components are assembled by using a hoisting machine and a certain splicing and mounting process.
In the seventies of the last century, bridge construction has begun to be carried out at home and abroad by using a prefabricated assembly method, and typical projects comprise a victoriy bridge, a houston Louetta bridge, a Seven Mile bridge, a east sea bridge, and the like.
However, at present, the assembly type bridge is only limited to the prefabrication and assembly of beam slabs, and the bridge pier (column) is still constructed by adopting the traditional cast-in-place concrete method, so that the defects and inconvenience exist, for example, the concrete quality is not easy to guarantee, the construction period is too long, the template consumption is too large, the construction noise is large, and the influence on urban traffic and the atmospheric environment is large. In order to build and realize a new development mode of low energy consumption and high efficiency in the building industry, reduce the traffic influence on bridge construction sections and intersections, the demand on assembled bridges with higher degree is more and more increased, which puts more requirements on the construction process of the bridges, and the invention is the social and engineering background.
Disclosure of Invention
To the above-mentioned condition, in order to accelerate the construction speed of bridge, reduce the traffic influence to building bridge highway section and crossing, the utility model aims at providing a festival segmentation pier convenient to installation can effectively solve the problem that construction cycle length, template consumption are too big, the energy consumption is high.
The technical scheme for solving the problem is that the bridge pier comprises a bridge pier bearing platform section, a plurality of bridge pier bearing platform sections and a bridge pier top section, wherein the upper part of the bridge pier bearing platform section is provided with mortise ports, and high-strength lead screws and steel anchor plates are embedded in four corners of the upper part of the bridge pier bearing platform section; the lower part of the middle section of the pier is provided with a tenon, the upper part of the middle section of the pier is provided with a mortise, four corners of the upper part of the middle section of the pier are embedded with high-strength lead screws and steel anchor plates, and four corners of the lower part of the middle section of the pier are reserved with lead screw pore canals and anchor boxes; the lower part of the pier top section of the pier is provided with a tenon, and four corners of the lower part are provided with a screw hole channel and an anchor box; the lower end of each lead screw is fixedly connected with the corresponding steel anchor plate, and the upper end of each lead screw is in threaded connection with a fastening nut.
The utility model discloses the structure atress is clear and definite, and it is reliable to pass power, is favorable to accelerating the construction speed, improves on-the-spot civilized construction degree, is favorable to environmental protection.
Drawings
Fig. 1 is an overall schematic view (assembled state).
Fig. 2 is a top view of the whole.
Fig. 3 is an overall schematic view (split state).
In the figure: 1. a lead screw; 2. a steel anchor plate; 3. a steel backing plate; 4. a lead screw channel; 5. fastening a nut; 6. the middle section of the bridge pier; 7. a pier bearing section; 8. a pier top section of a pier; 9. and (4) hoisting points.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 to 3, the utility model comprises a pier composed of a pier bearing section 7, a plurality of pier middle sections 6 and a pier top section 8, wherein the upper part of the pier bearing section 7 is provided with a mortise, and four corners at the upper part are embedded with high-strength lead screws 1 and steel anchor plates 2; the lower part of the middle section 6 of the pier is provided with a tenon, the upper part of the middle section is provided with a mortise, four corners of the upper part are embedded with a high-strength screw rod 1 and a steel anchor plate 2, and four corners of the lower part are reserved with screw rod pore channels 4 and anchor boxes; the lower part of the pier top section 8 of the pier is provided with a tenon, and four corners of the lower part are provided with a screw hole channel 4 and an anchor box; the lower end of each lead screw 1 is fixedly connected with the corresponding steel anchor plate 2, and the upper end of each lead screw is in threaded connection with a fastening nut 5.
In order to better realize bonding, the concave-convex difference of the surfaces of the mortise and the tenon is larger than 4mm, and the surface is coated with a high-strength structural adhesive.
For better stress, the screw rod 1 extends into the top surface of the bearing platform by 0.5 m.
In order to fix the screw rod 1, the anchor plate is a steel plate with the thickness of 20mmx20mmx3 mm.
In order to realize the installation of the screw rod 1, four screw rod hole channels 4 are reserved on the lower portion of the middle section 6 of the bridge pier, and meanwhile, a steel base plate 3 is padded at the upper end of each screw rod hole channel 4.
For the convenience of hoisting, the heights of the pier bearing section 7, the pier bearing section 7 and the pier top section 8 are 4-6 m.
The device comprises the following use steps:
1. according to the pier structure and the installation requirement, the pier is manufactured into segments which can be joggled with each other in a factory.
2. Four lead screws 1 are embedded in the bearing platform section 7 of the pier, and the lead screws 1 penetrate into the position 0.5m below the top surface of the bearing platform, so that reliable force transmission of the section of the bottom of the pier is guaranteed.
3. When the adjacent parts are installed, the tenon of the upper part is aligned with the mortise of the lower part, the pore passage of the upper part is aligned with the screw rod 1 of the lower part, and after falling down on the front, back, left and right alignment sleeves, the top end of the screw rod 1 is fastened and connected by the fastening nut 5, and certain pre-pressure is applied.
4. The upper part and the lower part are connected by a lead screw 1, and a layer of high-strength structural adhesive is coated between the interfaces of the upper part and the lower part for bonding.
5. And reserving anchor holes at the positions of the lower end steel base plate 3 of the middle section 6 of the pier and the top section 8 of the pier so as to fasten the screw rod 1 nut, and sealing the anchor by using concrete after the upper part and the lower part are installed.
The utility model discloses a pier interlude 6 and pier top section 8 all make in the mill, and pier bearing platform section 7 is in the cast in situ. The upper part of the pier bearing platform section 7 is provided with a mortise opening, and four corners of the upper part are embedded with high-strength lead screws 1 and steel anchor plates 2. The lower part of the middle section 6 of the pier is provided with a tenon, the upper part of the middle section is provided with a mortise, the four corners of the upper part of the middle section are embedded with high-strength lead screws 1 and steel anchor plates 2, and the four corners of the lower part of the middle section are reserved with lead screw channels 4 and anchor boxes. The lower part of the pier top section 8 of the pier is provided with a tenon, and four corners of the lower part are provided with a screw hole channel 4 and an anchor box.
When the pier is installed and constructed, after the pier bearing platform section 7 is cast in place, the automobile crane is used for hoisting the middle section 6 of the pier, the screw hole passages 4 reserved at the lower part of the middle section 6 of the pier are accurately aligned with the high-strength screws 1 embedded in the four corners of the upper part of the pier bearing platform section 7, and structural adhesives are used for bonding the joints of the upper part and the lower part. After the hoisting is finished, a nut 5 is installed and fastened at the anchor box of the reserved lead screw 1, a steel base plate 3 with the thickness of 2-3cm is embedded below the fastening nut 5, and the anchor box is sealed by using fine stone concrete with the strength higher by one grade than that of pier concrete. And sequentially hoisting the middle sections 6 of the rest piers, and hoisting the pier top sections 8 of the piers by using the same construction method after the middle sections 6 of the piers are completely hoisted. For the pier with the capping beam at the upper part, the capping beam is taken as an independent part and is also fixedly connected with the pier part under the capping beam through the high-strength lead screw 1.
The pier is organically divided into a plurality of parts, each part of the pier is made into a special-shaped shape with a tenon at the lower part and a mortise at the upper part, the upper part and the lower part are in mortise-tenon joint, structural adhesives are adopted for bonding, and the bonding strength is 50N/. High-strength screw rods 1 and anchor plates are embedded in four corners of the upper part of each component, are precisely aligned with the reserved holes in the four corners of the lower part of the adjacent upper component, and are connected with the adjacent upper component through the high-strength screw rods 1. After hoisting and joint closing of the two adjacent parts are finished, the screw rod 1 is installed and fastened at the anchor box, the steel base plate 3 with the thickness of 2-3cm is embedded below the fastening nut 5, and therefore local compression damage of concrete is prevented when anchoring force is transferred. The upper part and the lower part are tightly connected into a whole through the screw rod 1, the high-strength screw rod 1 not only can play a role in positioning and connecting, but also can bear the longitudinal and transverse load effects of the pier and the bending moment and the tensile force generated by unbalance loading, and the anchor box is sealed by using fine aggregate concrete with the strength higher by one grade than that of the pier concrete so as to achieve the purposes of rust prevention and corrosion prevention. For the pier with the capping beam at the upper part, the capping beam is taken as an independent part and is also fixedly connected with the pier part under the capping beam through the high-strength lead screw 1. Compared with the vertical prestressed steel bars which penetrate through the whole bridge pier, the bridge pier has the advantages of low difficulty in on-site installation and construction and high construction speed.
When the bearing platform is built, the influence of prepressing sedimentation is considered, and the later-stage pier elevation difference can be adjusted and solved through the size of the part or the size of the supporting cushion block. The height of the pier component is determined according to the section size of the pier and the condition of hoisting equipment, and is preferably 4-6 meters generally. This patent is applicable to each cross-section pier such as independent mound, double column mound, frame mound.
The utility model provides a precast concrete pier rapid manufacturing method is favorable to accelerating bridge construction speed, reduces the influence to urban road traffic, simultaneously in the mill on a large scale precast concrete pier, energy-concerving and environment-protective, raises the efficiency. In addition, the lead screws 1 arranged at the four corners of the bridge pier have high strength and large area, can bear the horizontal load and the bending moment and the tensile force generated by the unbalance load, and has high structural safety of the bridge pier.
Claims (6)
1. A sectional type bridge pier convenient to install is characterized by comprising a bridge pier consisting of a bridge pier bearing platform section (7), a plurality of bridge pier middle sections (6) and a bridge pier top section (8), wherein the upper part of the bridge pier bearing platform section (7) is provided with a mortise opening, and high-strength lead screws (1) and steel anchor plates (2) are embedded in four corners of the upper part of the bridge pier bearing platform section; the lower part of the middle section (6) of the pier is provided with a tenon, the upper part of the middle section is provided with a mortise, four corners of the upper part are embedded with a high-strength screw rod (1) and a steel anchor plate (2), and four corners of the lower part are reserved with screw rod pore passages (4) and anchor boxes; the lower part of the pier top section (8) of the pier is provided with a tenon, and four corners of the lower part are provided with a screw hole channel (4) and an anchor box; the lower end of each lead screw (1) is fixedly connected with the corresponding steel anchor plate (2), and the upper end of each lead screw is in threaded connection with a fastening nut (5).
2. The segmental pier convenient to install according to claim 1, wherein the difference between the surface roughness of a pair of mortise and tenon matched with each other among the pier bearing platform section (7), the pier middle section (6) and the pier top section (8) is larger than 4mm, and a high-strength structural adhesive is coated on the surface.
3. The segmental pier convenient to install according to claim 1, wherein the screw rod (1) penetrates 0.5m deep into the top surface of the bearing platform.
4. An easily installed segmental pier as claimed in claim 1, wherein the steel anchor plate (2) is a 20mmx20mmx3mm steel plate.
5. The segmental bridge pier convenient to install according to claim 1, wherein four lead screw channels (4) are reserved at the lower part of the middle section (6) of the bridge pier, and a steel base plate (3) is padded at the upper end of each lead screw channel (4).
6. The sectional type pier convenient to install according to claim 1, wherein the heights of the pier bearing platform section (7), the pier middle section (6) and the pier top section (8) are all 4-6 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922050370.7U CN211228068U (en) | 2019-11-25 | 2019-11-25 | Festival segmentation pier convenient to installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922050370.7U CN211228068U (en) | 2019-11-25 | 2019-11-25 | Festival segmentation pier convenient to installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211228068U true CN211228068U (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922050370.7U Expired - Fee Related CN211228068U (en) | 2019-11-25 | 2019-11-25 | Festival segmentation pier convenient to installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211228068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252607A1 (en) * | 2021-05-31 | 2022-12-08 | 中铁十一局集团有限公司 | System and method for rapid alignment of non-standard prefabricated parts for use in bridges |
-
2019
- 2019-11-25 CN CN201922050370.7U patent/CN211228068U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252607A1 (en) * | 2021-05-31 | 2022-12-08 | 中铁十一局集团有限公司 | System and method for rapid alignment of non-standard prefabricated parts for use in bridges |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 Termination date: 20211125 |