CN110747741A - Wet joint construction template and construction method - Google Patents
Wet joint construction template and construction method Download PDFInfo
- Publication number
- CN110747741A CN110747741A CN201910876597.9A CN201910876597A CN110747741A CN 110747741 A CN110747741 A CN 110747741A CN 201910876597 A CN201910876597 A CN 201910876597A CN 110747741 A CN110747741 A CN 110747741A
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- steel plate
- supporting steel
- wet joint
- plate
- web
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Classifications
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- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/065—Joints having sliding plates
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
Abstract
A wet joint construction template comprises a left web plate and a right web plate of a bridge, wherein the left web plate and the right web plate are positioned on two sides of a wet joint, a left supporting steel plate is fixedly arranged on the bottom surface of the left web plate, one end of the left supporting steel plate is fixed at the bottom of the left web plate, and the other end of the left supporting steel plate extends into the wet joint; the bottom surface of the right web plate is fixedly provided with a right supporting steel plate, one end of the right supporting steel plate is fixed at the bottom of the right web plate, the other end of the right supporting steel plate extends into the wet joint, the other end of the left supporting steel plate is connected with the other end of the right supporting steel plate through a connecting steel plate, and the left supporting steel plate, the connecting steel plate and the right supporting steel plate form a sealing template at the bottom of the wet joint; the lower part of the left web plate and the lower part of the right web plate are fixedly connected through a prestressed steel strand at the position above the connecting steel plate. The construction template of the invention adopts the left supporting steel plate, the connecting steel plate and the right supporting steel plate to form the sealing template at the bottom of the wet joint, does not need a bracket, meets the construction requirement of wet joint concrete, does not influence the traffic under a bridge, and can be used as the longitudinal connection of a permanent structure reinforcing beam body.
Description
Technical Field
The invention relates to the technical field of concrete construction, in particular to a wet joint construction template and a construction method.
Background
The T-shaped beam is a bridge structure which is built more in China. With the advance of technology, rapid construction methods have become dominant abroad. In China, rapid construction technology is also gradually paid attention. Traffic disruption can have a major impact on the society and economy that are developing rapidly today. How to shorten the construction period and reduce the interference to the existing traffic and realizing the rapid construction process is a problem that social development needs to be researched. The prefabricated sectional type bridge is generally prefabricated in a prefabrication factory and then transported to a site for assembly, so that the construction period is greatly shortened, and the influence on surrounding traffic is reduced.
The segment type bridge needs to cast concrete on the joints between the segments in the final engineering stage, so that the segments form a whole, and the wet joint is one of the joints. The wet joint is the joint that the prestressed concrete beam body is prefabricated in blocks, the cantilever is spliced into a long-span continuous beam, and the beam body is connected into a whole by adopting cast-in-place concrete. At present, wet joints are mainly used for a folding section and an error calibration section of a segmental bridge, and after the bridge is erected, wet joint concrete is poured between adjacent beam bodies to enable the beam bodies to serve as an integral stress structure. The construction of the wet joint needs to erect the formwork first, the traditional formwork generally adopts a full framing method formwork erection mode and a suspension method formwork erection mode, and the full framing method formwork erection mode and the suspension method formwork erection mode need to erect a support under a bridge, so that the influence on traffic under the bridge is large.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a wet joint construction template, which not only meets the construction requirements of wet joint concrete, but also does not influence the traffic under a bridge, and can be used as the longitudinal connection of a permanent structure reinforcing beam body.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a wet joint construction template comprises a left web plate and a right web plate of a bridge, wherein the left web plate and the right web plate are positioned on two sides of a wet joint, a left supporting steel plate is fixedly arranged on the bottom surface of the left web plate, one end of the left supporting steel plate is fixed at the bottom of the left web plate, and the other end of the left supporting steel plate extends into the wet joint; the bottom surface of the right web plate is fixedly provided with a right supporting steel plate, one end of the right supporting steel plate is fixed at the bottom of the right web plate, the other end of the right supporting steel plate extends into the wet joint, the other end of the left supporting steel plate is connected with the other end of the right supporting steel plate through a connecting steel plate, and the left supporting steel plate, the connecting steel plate and the right supporting steel plate form a sealing template at the bottom of the wet joint; the lower part of the left web plate and the lower part of the right web plate are fixedly connected through a prestressed steel strand at the position above the connecting steel plate.
According to the construction template, the left supporting steel plate, the connecting steel plate and the right supporting steel plate are adopted to form the sealing template at the bottom of the wet joint, a bracket is not needed, the construction requirement of wet joint concrete is met, the traffic under a bridge is not influenced, and the construction template can be used for longitudinal connection of a permanent structure reinforcing beam body; the longitudinal connection of the left web plate and the right web plate is strengthened through the prestressed steel strands, the effects of improving bearing capacity and reducing deflection and bending moment are achieved, and the phenomenon that wet joint key teeth are separated too early to lose bearing capacity when the left web plate and the right web plate bear load is prevented.
As an improvement of the invention, the connecting steel plate is respectively connected with the other end of the left supporting steel plate and the other end of the right supporting steel plate through bolts and nuts.
As an improvement of the invention, at least two reserved holes are symmetrically formed in the lower parts of the left web plate and the right web plate above the connecting steel plate, the reserved holes are anchored with high-strength steel plates by bolts and nuts, one end of each prestressed steel strand is fixedly connected with the high-strength steel plate located on the left web plate, and the other end of each prestressed steel strand is fixedly connected with the high-strength steel plate located on the right web plate.
The invention also provides a wet joint construction method.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a wet joint construction method comprising the steps of:
fixedly mounting a left supporting steel plate at the bottom of a left web plate of the bridge on the left side of the wet joint, so that one end of the left supporting steel plate is fixed at the bottom of the left web plate, and the other end of the left supporting steel plate extends into the wet joint;
a right supporting steel plate is fixedly installed at the bottom of a right web plate of the bridge on the right side of the wet joint, so that one end of the right supporting steel plate is fixed at the bottom of the right web plate, and the other end of the right supporting steel plate extends into the wet joint;
connecting the other end of the left supporting steel plate with the other end of the right supporting steel plate by using a connecting steel plate, wherein the left supporting steel plate, the connecting steel plate and the right supporting steel plate form a sealing template at the bottom of the wet joint;
the lower part of the left web plate and the lower part of the right web plate are fixedly connected at the positions above the connecting steel plate through prestressed steel strands;
and then pouring concrete into the wet joint, and finishing construction.
Compared with the prior art, the invention has the following advantages:
the construction template adopts the left supporting steel plate, the connecting steel plate and the right supporting steel plate to form the sealing template at the bottom of the wet joint, does not need a bracket, meets the construction requirement of wet joint concrete, does not influence the traffic under a bridge, and can be used as the longitudinal connection of a permanent structure reinforcing beam body;
the longitudinal connection of the left web plate and the right web plate is strengthened through the prestressed steel strands, the effects of improving bearing capacity and reducing deflection and bending moment are achieved, and the phenomenon that wet joint key teeth are separated too early to lose bearing capacity when the left web plate and the right web plate bear load is prevented.
Drawings
FIG. 1 is a schematic structural view of a wet joint construction form of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
Examples
Referring to fig. 1, a wet joint construction formwork includes a left web 20 and a right web 30 of a bridge at both sides of a wet joint 10;
a left supporting steel plate 40 is fixedly arranged on the bottom surface of the left web plate 20, one end of the left supporting steel plate 40 is fixed at the bottom of the left web plate 20, and the other end of the left supporting steel plate 40 extends into the wet joint 10;
a right supporting steel plate 50 is fixedly arranged on the bottom surface of the right web plate 30, one end of the right supporting steel plate 50 is fixed at the bottom of the right web plate 30, and the other end of the right supporting steel plate 50 extends into the wet joint 10;
the other end of the left supporting steel plate 40 is connected with the other end of the right supporting steel plate 50 through a connecting steel plate 60, and the left supporting steel plate 40, the connecting steel plate 60 and the right supporting steel plate 50 form a sealing template at the bottom of the wet joint 10;
the lower part of the left web plate 20 and the lower part of the right web plate 30 are fixedly connected through the prestressed steel strand 80 at the position above the connecting steel plate 60.
According to the construction template, the left supporting steel plate, the connecting steel plate and the right supporting steel plate are adopted to form the sealing template at the bottom of the wet joint, a bracket is not needed, the construction requirement of wet joint concrete is met, the traffic under a bridge is not influenced, and the construction template can be used for longitudinal connection of a permanent structure reinforcing beam body; the longitudinal connection of the left web plate and the right web plate is strengthened through the prestressed steel strands, the effects of improving bearing capacity and reducing deflection and bending moment are achieved, and the phenomenon that wet joint key teeth are separated too early to lose bearing capacity when the left web plate and the right web plate bear load is prevented.
In this embodiment, the connecting steel plate 60 is connected to the other end of the left supporting steel plate 40 and the other end of the right supporting steel plate 50 by means of bolts and nuts 70, respectively. The bolt and the nut can be detachably connected, so that the installation and the disassembly are facilitated, and the construction is convenient.
Specifically, in this embodiment, the left web 20 and the right web 30 are symmetrically provided with at least two preformed holes at the lower position above the connecting steel plate, the preformed holes are provided with the high-strength steel plate 90 anchored by the bolts and nuts 91, and one end of the prestressed steel strand 80 is fixedly connected with the high-strength steel plate located at the left web 20, and the other end of the prestressed steel strand is fixedly connected with the high-strength steel plate located at the right web 30.
A wet joint construction method comprising the steps of:
fixedly mounting a left supporting steel plate at the bottom of a left web plate of the bridge on the left side of the wet joint, so that one end of the left supporting steel plate is fixed at the bottom of the left web plate, and the other end of the left supporting steel plate extends into the wet joint;
a right supporting steel plate is fixedly installed at the bottom of a right web plate of the bridge on the right side of the wet joint, so that one end of the right supporting steel plate is fixed at the bottom of the right web plate, and the other end of the right supporting steel plate extends into the wet joint;
connecting the other end of the left supporting steel plate with the other end of the right supporting steel plate by using a connecting steel plate, wherein the left supporting steel plate, the connecting steel plate and the right supporting steel plate form a sealing template at the bottom of the wet joint;
the lower part of the left web plate and the lower part of the right web plate are fixedly connected at the positions above the connecting steel plate through prestressed steel strands;
and then pouring concrete into the wet joint, and finishing construction.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (4)
1. The utility model provides a wet joint construction formwork, is including the left web and the right web that are located the bridge of wet joint both sides, its characterized in that: a left supporting steel plate is fixedly arranged on the bottom surface of the left web plate, one end of the left supporting steel plate is fixed at the bottom of the left web plate, and the other end of the left supporting steel plate extends into the wet joint; the bottom surface of the right web plate is fixedly provided with a right supporting steel plate, one end of the right supporting steel plate is fixed at the bottom of the right web plate, the other end of the right supporting steel plate extends into the wet joint, the other end of the left supporting steel plate is connected with the other end of the right supporting steel plate through a connecting steel plate, and the left supporting steel plate, the connecting steel plate and the right supporting steel plate form a sealing template at the bottom of the wet joint; the lower part of the left web plate and the lower part of the right web plate are fixedly connected through a prestressed steel strand at the position above the connecting steel plate.
2. The wet joint construction formwork of claim 1, wherein: the connecting steel plate is respectively connected with the other end of the left supporting steel plate and the other end of the right supporting steel plate through bolts and nuts.
3. The wet joint construction formwork of claim 1, wherein: the left web and the right web are symmetrically provided with at least two reserved holes at positions above the connecting steel plate, the reserved holes are provided with high-strength steel plates anchored by bolts and nuts, one end of each prestressed steel strand is fixedly connected with the high-strength steel plate located at the left web, and the other end of each prestressed steel strand is fixedly connected with the high-strength steel plate located at the right web.
4. A method of wet joint construction, comprising the steps of:
fixedly mounting a left supporting steel plate at the bottom of a left web plate of the bridge on the left side of the wet joint, so that one end of the left supporting steel plate is fixed at the bottom of the left web plate, and the other end of the left supporting steel plate extends into the wet joint;
a right supporting steel plate is fixedly installed at the bottom of a right web plate of the bridge on the right side of the wet joint, so that one end of the right supporting steel plate is fixed at the bottom of the right web plate, and the other end of the right supporting steel plate extends into the wet joint;
connecting the other end of the left supporting steel plate with the other end of the right supporting steel plate by using a connecting steel plate, wherein the left supporting steel plate, the connecting steel plate and the right supporting steel plate form a sealing template at the bottom of the wet joint;
the lower part of the left web plate and the lower part of the right web plate are fixedly connected at the positions above the connecting steel plate through prestressed steel strands;
and then pouring concrete into the wet joint, and finishing construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876597.9A CN110747741A (en) | 2019-09-17 | 2019-09-17 | Wet joint construction template and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876597.9A CN110747741A (en) | 2019-09-17 | 2019-09-17 | Wet joint construction template and construction method |
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| Publication Number | Publication Date |
|---|---|
| CN110747741A true CN110747741A (en) | 2020-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910876597.9A Pending CN110747741A (en) | 2019-09-17 | 2019-09-17 | Wet joint construction template and construction method |
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| Country | Link |
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| CN (1) | CN110747741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113512929A (en) * | 2021-03-19 | 2021-10-19 | 宁波市政工程建设集团股份有限公司 | Steel-concrete combined structural hidden cover beam structure system and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202658532U (en) * | 2012-07-13 | 2013-01-09 | 中铁二十四局集团安徽工程有限公司 | Bridge wet joint construction template |
| KR101303117B1 (en) * | 2011-11-18 | 2013-09-06 | 한국건설기술연구원 | Constructing Method for Joint between Precast Concrete Block with In-situ Concrete and Mold Plate therefor |
| CN203700971U (en) * | 2014-02-10 | 2014-07-09 | 苏玉明 | Bridge wet joint construction formwork |
| CN204715221U (en) * | 2015-05-19 | 2015-10-21 | 广东工业大学 | Sectional type stem grafting seam T web local stiffening structure |
| CN208105050U (en) * | 2017-10-16 | 2018-11-16 | 中铁七局集团武汉工程有限公司 | A kind of wet seam construction formwork of bridge |
-
2019
- 2019-09-17 CN CN201910876597.9A patent/CN110747741A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101303117B1 (en) * | 2011-11-18 | 2013-09-06 | 한국건설기술연구원 | Constructing Method for Joint between Precast Concrete Block with In-situ Concrete and Mold Plate therefor |
| CN202658532U (en) * | 2012-07-13 | 2013-01-09 | 中铁二十四局集团安徽工程有限公司 | Bridge wet joint construction template |
| CN203700971U (en) * | 2014-02-10 | 2014-07-09 | 苏玉明 | Bridge wet joint construction formwork |
| CN204715221U (en) * | 2015-05-19 | 2015-10-21 | 广东工业大学 | Sectional type stem grafting seam T web local stiffening structure |
| CN208105050U (en) * | 2017-10-16 | 2018-11-16 | 中铁七局集团武汉工程有限公司 | A kind of wet seam construction formwork of bridge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113512929A (en) * | 2021-03-19 | 2021-10-19 | 宁波市政工程建设集团股份有限公司 | Steel-concrete combined structural hidden cover beam structure system and construction method thereof |
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Application publication date: 20200204 |
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