CN111042011A - Side wall reinforcing method for construction of close-distance adjacent frame structure bridge - Google Patents
Side wall reinforcing method for construction of close-distance adjacent frame structure bridge Download PDFInfo
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- CN111042011A CN111042011A CN201911395615.8A CN201911395615A CN111042011A CN 111042011 A CN111042011 A CN 111042011A CN 201911395615 A CN201911395615 A CN 201911395615A CN 111042011 A CN111042011 A CN 111042011A
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- wedge
- shaped steel
- side wall
- template
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
Abstract
A side wall reinforcing method for construction of close-distance adjacent frame bridges. The method comprises the steps of manufacturing a wedge-shaped steel die pair; binding the steel reinforcement frameworks of the upper side walls of the two box bodies and erecting an inner template and an outer template; a plurality of pairs of wedge-shaped steel dies are arranged between the two side wall outer templates, square steel is arranged between the wedge-shaped steel dies, and the upper end and the lower end of each pair of wedge-shaped steel dies are fixed by using connecting fasteners; sequentially penetrating one end of a lacing wire through an inner template and an outer template of one frame-structured bridge, two corresponding lacing wire through holes in a pair of wedge-shaped steel molds and an outer template and an inner template of the other frame-structured bridge, and fastening two ends of the lacing wire; synchronously pouring concrete between the inner template and the outer template; and dismantling all the parts and the like. The invention has the advantages that: the side wall formworks of the two independent frame-structure bridges are integrated through the tie bars and the wedge-shaped formworks, so that the rigidity, the strength and the stability of the formworks are ensured; in the construction process, the construction personnel do not need to enter the middle of the side walls of the two frame bridges, so that the safety of the construction personnel is ensured; the wedge-shaped template can be reused.
Description
Technical Field
The invention belongs to the technical field of adjacent frame bridge construction, and particularly relates to a side wall reinforcing method in short-distance adjacent frame bridge construction.
Background
With the increasing of current infrastructure, the requirements of people on the appearance and the quality of a concrete structure are stricter and stricter. Under special conditions, the situation that concrete is poured into the boxes on two adjacent frame structure bridges at the same time sometimes occurs, and it is critical to ensure that the construction of the side walls can be simultaneously carried out under the condition that the distance between the two box structures on the two frame structure bridges is relatively small.
By referring to related data, in the past, when the formwork is erected in the form of the 'one-pit two-frame-structure' mode, a separate mode erecting method is generally adopted, namely, each frame structure bridge upper box body is erected independently, and the method is suitable for the condition that the distance between the two frame structure bridge upper box bodies is long and an operator can have an operation space. When the distance between the box bodies on the two frame structure bridges is short, for example 50cm, an operator cannot work in the middle of the side wall of the box bodies on the two frame structure bridges, and the formwork needs to be reinforced so as to prevent the formwork from running in the concrete pouring process, so that the method for independently supporting the formwork is not applicable.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a method for reinforcing a side wall during construction of a close-distance adjacent frame-constructed bridge.
In order to achieve the purpose, the method for reinforcing the side wall during the construction of the close-distance adjacent frame-structured bridge, provided by the invention, comprises the following steps in sequence:
1) manufacturing wedge-shaped steel dies with triangular side surfaces, wherein a pair of a regular triangular wedge-shaped steel die and an inverted triangular wedge-shaped steel die is formed, and a plurality of lacing wire through holes are formed in corresponding positions of each pair of wedge-shaped steel dies;
2) binding two steel bar frameworks of the upper side wall of the box body for the frame construction bridge side by side in a foundation pit at one side of a railway line, and then respectively erecting an inner template and an outer template at the inner side and the outer side of each steel bar framework;
3) a plurality of pairs of wedge-shaped steel dies are arranged between the outer templates of the upper side wall of the box body for the two frame construction bridges at intervals, each pair of wedge-shaped steel dies are arranged in a mode that bevel edges or inclined surfaces are contacted, namely the bevel edge on one wedge-shaped steel die of a regular triangle is butted with the bevel edge or inclined surface of an inverted triangle, then square steel is arranged at the position between the wedge-shaped steel dies, and the upper end and the lower end of each pair of wedge-shaped steel dies are fixed by utilizing connecting fasteners;
4) sequentially penetrating one end of each lacing wire through an inner template and an outer template of the upper side wall of the box body for the frame structure bridge, two corresponding lacing wire through holes in a pair of wedge-shaped steel molds and an outer template and an inner template of the upper side wall of the box body for the other frame structure bridge, and then fastening two ends of the lacing wires;
5) then synchronously pouring concrete between the inner template and the outer template of the upper side wall of the box body for the two frame bridges;
6) after the concrete is solidified and cured to form the side wall, firstly, the tie bars are pulled out, the lock catches are unlocked, then a jack is installed at the lower side of each pair of wedge-shaped steel dies, the jacks are started to enable the ejector rods on the jacks to extend outwards, so that the wedge-shaped steel dies gradually ascend, finally, the wedge-shaped steel dies are pulled out from the upper side of the side wall, and finally, the square steel, the inner formwork and the outer formwork are dismantled, so that the construction process of the side wall is completed.
The wedge-shaped template comprises a solid structure and a groove-shaped structure.
The method for reinforcing the side wall during construction of the close-distance adjacent frame structure bridge has the following advantages:
(1) the side wall formworks of the two independent frame-structure bridges are integrated through the tie bars and the wedge-shaped formworks, so that the rigidity, the strength and the stability of the formworks are ensured;
(2) in the construction process, the construction personnel do not need to enter the middle of the side walls of the two frame bridges, so that the safety of the construction personnel is ensured;
(3) the wedge-shaped template can be cut and manufactured by using the existing large flat steel die, thereby saving the fund and being capable of being repeatedly used.
Drawings
FIG. 1 is a cross-sectional view of a wedge-shaped template used in the method of the present invention.
FIG. 2 is a cross-sectional view of a connecting fastener and a square steel used in the method of the present invention.
FIG. 3 is an overall cross-sectional view of two frame-bridge structures when the method of the present invention is employed.
Detailed Description
The following describes in detail the method for reinforcing a side wall during construction of a close-distance adjacent frame-constructed bridge according to the present invention with reference to the accompanying drawings and specific embodiments.
Taking a high-speed rail passing through a certain high-speed rail under 105 national roads and a railway interchange project as an example:
two boxes for frame construction bridges are arranged in the north foundation pit of the high-speed rail line, one box for road frame construction bridges and the other box for ditch frame construction bridges. The structural size of the box body for the road frame bridge is 13.5m-10m-13.5m, the thickness of the wall and the top plate is 1m, and the thickness of the bottom plate is 1.1 m; the structure size of the box body for the ditch frame structure bridge is 7m-7m, the thickness of the wall and the top plate is 0.7m, and the thickness of the bottom plate is 0.8 m. The clear distance between the box body for the road frame bridge and the box body for the ditch frame bridge is 50 cm.
From the construction difficulty, the clear distance between the two box bodies for the frame-structured bridge is 50cm, and an operator does not have an operation space when erecting the template, so that the template outside the side wall of the two box bodies for the frame-structured bridge cannot be safely fixed. Therefore, the inventor adopts the method for reinforcing the side wall during the construction of the close-distance adjacent frame-structured bridge provided by the invention to solve the problem.
As shown in fig. 1 to fig. 3, the method for reinforcing the side wall during the construction of the close-distance adjacent frame-structured bridge provided by the invention comprises the following steps in sequence:
1) manufacturing wedge-shaped steel dies 1 with triangular side surfaces, wherein a pair of the wedge-shaped steel dies 1 with the regular triangle shape and the wedge-shaped steel dies 1 with the inverted triangle shape is formed, and a plurality of lacing wire through holes are formed in corresponding positions on each pair of wedge-shaped steel dies 1; the wedge-shaped template 1 comprises a solid structure and a groove-shaped structure;
2) binding two steel bar frameworks of the upper side wall of the box body for the frame construction bridge side by side in a foundation pit at one side of a railway line, and then respectively erecting an inner template 6 and an outer template 7 at the inner side and the outer side of each steel bar framework;
3) a plurality of pairs of wedge-shaped steel dies 1 are arranged between outer templates 7 of upper side walls of box bodies for two frame construction bridges at intervals, each pair of wedge-shaped steel dies 1 are arranged in a mode that bevel edges or inclined surfaces are contacted, namely the bevel edge on one wedge-shaped steel die 1 in a regular triangle shape is butted with the bevel edge or inclined surface of an inverted triangle shape, then square steel 3 is arranged at the position between the wedge-shaped steel dies 1, and the upper end and the lower end of each pair of wedge-shaped steel dies 1 are fixed by using connecting fasteners 2 to prevent vertical displacement;
4) one end of each lacing bar 4 sequentially penetrates through an inner template 6 and an outer template 7 of the upper side wall of the box body for the frame-structured bridge, two corresponding lacing bar through holes on the pair of wedge-shaped steel molds 1, and the outer template 7 and the inner template 6 of the upper side wall of the box body for the other frame-structured bridge, and then the two ends of the lacing bars 4 are fastened, so that the independent templates on the two frame-structured bridges form a whole;
5) then synchronously pouring concrete between the inner formwork 6 and the outer formwork 7 of the upper side wall of the box body for the two frame structures to prevent the side formwork from toppling due to the fact that concrete on one side is poured too fast;
5) after the concrete is solidified and cured to form the side wall 8, firstly, the lacing wires 4 are drawn out, the lock catches 2 are unlocked, then, a jack 5 is installed at the lower side of each pair of wedge-shaped steel dies 1, the jack 5 is started to enable the ejector rods on the jacks to extend outwards, so that the wedge-shaped steel dies 1 gradually rise, finally, the wedge-shaped steel dies 1 are drawn out from the upper side of the side wall 8, and finally, the square steel 3, the inner formwork 6 and the outer formwork 7 are dismantled, so that the construction process of the side wall 8 is completed.
Claims (2)
1. A side wall reinforcing method during construction of close-distance adjacent frame structure bridges is characterized by comprising the following steps: the side wall reinforcing method comprises the following steps in sequence:
1) manufacturing wedge-shaped steel dies (1) with triangular side surfaces, wherein a pair of the wedge-shaped steel dies (1) with the regular triangle shape and the wedge-shaped steel dies (1) with the inverted triangle shape is formed, and a plurality of lacing wire through holes are formed in corresponding positions on each pair of wedge-shaped steel dies (1);
2) binding two steel bar frameworks of the upper side wall of the box body for the frame construction bridge side by side in a foundation pit at one side of a railway line, and then respectively erecting an inner template (6) and an outer template (7) at the inner side and the outer side of each steel bar framework;
3) a plurality of pairs of wedge-shaped steel dies (1) are arranged between outer templates (7) of upper side walls of box bodies for two frame construction bridges at intervals, each pair of wedge-shaped steel dies (1) are arranged in a mode that bevel edges or inclined surfaces are contacted, namely the bevel edge on one regular triangular wedge-shaped steel die (1) is butted with the bevel edge or the inclined surface of an inverted triangle, then square steel (3) is arranged at the position between the wedge-shaped steel dies (1), and the upper end and the lower end of each pair of wedge-shaped steel dies (1) are fixed by using connecting fasteners (2);
4) one end of each lacing wire 4 sequentially penetrates through an inner template (6) and an outer template (7) of the upper side wall of the box body for the frame-structured bridge, two corresponding lacing wire through holes in a pair of wedge-shaped steel molds (1), and the outer template (7) and the inner template (6) of the upper side wall of the box body for the other frame-structured bridge, and then the two ends of each lacing wire (4) are fastened;
5) then synchronously pouring concrete between an inner template (6) and an outer template (7) of the upper side wall of the box body for the two frame bridges;
6) after the concrete is solidified and cured to form the side wall (8), firstly, the lacing wires (4) are pulled out, the lock catches (2) are unlocked, then a jack (5) is installed at the lower side of each pair of wedge-shaped steel dies (1), the jack (5) is started to enable the ejector rods on the jack to extend outwards, so that the wedge-shaped steel dies (1) gradually rise, finally, the wedge-shaped steel dies (1) are pulled out from the upper side of the side wall (8), and finally, the square steel (3), the inner formwork (6) and the outer formwork (7) are dismantled, so that the construction process of the side wall (8) is completed.
2. The method for reinforcing the side wall during the construction of the close-distance adjacent frame-structured bridge according to claim 1, wherein: the wedge-shaped template (1) comprises a solid structure and a groove-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395615.8A CN111042011A (en) | 2019-12-30 | 2019-12-30 | Side wall reinforcing method for construction of close-distance adjacent frame structure bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395615.8A CN111042011A (en) | 2019-12-30 | 2019-12-30 | Side wall reinforcing method for construction of close-distance adjacent frame structure bridge |
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| Publication Number | Publication Date |
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| CN111042011A true CN111042011A (en) | 2020-04-21 |
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| CN201911395615.8A Withdrawn CN111042011A (en) | 2019-12-30 | 2019-12-30 | Side wall reinforcing method for construction of close-distance adjacent frame structure bridge |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1924630A (en) * | 1930-06-10 | 1933-08-29 | Toogood Henry Herbert | Wedge bar |
| GB1025629A (en) * | 1963-11-18 | 1966-04-14 | Bjoern Olof Gullmer Svedberg | Method and apparatus for clamping tie-rods for bracing concrete shuttering |
| GB1029009A (en) * | 1964-02-18 | 1966-05-11 | Leon Foulquier | Improvements in and relating to shuttering for the moulding of walls and the like |
| DD156832A1 (en) * | 1981-03-12 | 1982-09-22 | Juergen Kanter | FIXING DEVICE |
| EP0995854A1 (en) * | 1994-06-20 | 2000-04-26 | Aab Building System Inc. | Supporting shelf for cladding for concrete wall |
| KR20010008463A (en) * | 1999-07-01 | 2001-02-05 | 김영환 | Method for forming isolation region of semiconductor device |
| CN205153544U (en) * | 2015-12-03 | 2016-04-13 | 鹿丽娜 | Reinforcing apparatus of concrete structure expansion joint template |
| CN205713080U (en) * | 2016-06-20 | 2016-11-23 | 中国建筑第二工程局有限公司 | A kind of for making the shaper of dual-shear force wall at expansion joint |
| CN106284981A (en) * | 2015-06-05 | 2017-01-04 | 中国建筑第四工程局有限公司 | The mold method of two side templates in a kind of shear force wall deformation slit |
| CN206091304U (en) * | 2016-10-19 | 2017-04-12 | 黄燕艳 | Reinforcing apparatus of concrete structure expansion joint template |
| CN106677537A (en) * | 2017-03-13 | 2017-05-17 | 中国十七冶集团有限公司 | Formwork supporting method for frame beam columns at settlement joint between main building and attached building of civil architecture |
| CN206337819U (en) * | 2016-12-28 | 2017-07-18 | 吴玉红 | A kind of bracing means of concrete structure templates for expansion joints |
| CN207988490U (en) * | 2018-01-10 | 2018-10-19 | 中天建设集团有限公司 | A kind of easy device that deformation joint shear wall formwork installs |
| CN108999396A (en) * | 2018-07-24 | 2018-12-14 | 中冶建工集团有限公司 | Double shutterings-supported construction methods within the walls |
| CN110439265A (en) * | 2019-08-23 | 2019-11-12 | 重庆建工第三建设有限责任公司 | Bilateral column or wall method for synchronously constructing at a kind of narrow expansion joint |
-
2019
- 2019-12-30 CN CN201911395615.8A patent/CN111042011A/en not_active Withdrawn
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1924630A (en) * | 1930-06-10 | 1933-08-29 | Toogood Henry Herbert | Wedge bar |
| GB1025629A (en) * | 1963-11-18 | 1966-04-14 | Bjoern Olof Gullmer Svedberg | Method and apparatus for clamping tie-rods for bracing concrete shuttering |
| GB1029009A (en) * | 1964-02-18 | 1966-05-11 | Leon Foulquier | Improvements in and relating to shuttering for the moulding of walls and the like |
| DD156832A1 (en) * | 1981-03-12 | 1982-09-22 | Juergen Kanter | FIXING DEVICE |
| EP0995854A1 (en) * | 1994-06-20 | 2000-04-26 | Aab Building System Inc. | Supporting shelf for cladding for concrete wall |
| KR20010008463A (en) * | 1999-07-01 | 2001-02-05 | 김영환 | Method for forming isolation region of semiconductor device |
| CN106284981A (en) * | 2015-06-05 | 2017-01-04 | 中国建筑第四工程局有限公司 | The mold method of two side templates in a kind of shear force wall deformation slit |
| CN205153544U (en) * | 2015-12-03 | 2016-04-13 | 鹿丽娜 | Reinforcing apparatus of concrete structure expansion joint template |
| CN205713080U (en) * | 2016-06-20 | 2016-11-23 | 中国建筑第二工程局有限公司 | A kind of for making the shaper of dual-shear force wall at expansion joint |
| CN206091304U (en) * | 2016-10-19 | 2017-04-12 | 黄燕艳 | Reinforcing apparatus of concrete structure expansion joint template |
| CN206337819U (en) * | 2016-12-28 | 2017-07-18 | 吴玉红 | A kind of bracing means of concrete structure templates for expansion joints |
| CN106677537A (en) * | 2017-03-13 | 2017-05-17 | 中国十七冶集团有限公司 | Formwork supporting method for frame beam columns at settlement joint between main building and attached building of civil architecture |
| CN207988490U (en) * | 2018-01-10 | 2018-10-19 | 中天建设集团有限公司 | A kind of easy device that deformation joint shear wall formwork installs |
| CN108999396A (en) * | 2018-07-24 | 2018-12-14 | 中冶建工集团有限公司 | Double shutterings-supported construction methods within the walls |
| CN110439265A (en) * | 2019-08-23 | 2019-11-12 | 重庆建工第三建设有限责任公司 | Bilateral column or wall method for synchronously constructing at a kind of narrow expansion joint |
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Application publication date: 20200421 |
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| WW01 | Invention patent application withdrawn after publication |