CN110777665A - Construction method of cast-in-situ box girder skylight supporting template - Google Patents
Construction method of cast-in-situ box girder skylight supporting template Download PDFInfo
- Publication number
- CN110777665A CN110777665A CN201911090446.7A CN201911090446A CN110777665A CN 110777665 A CN110777665 A CN 110777665A CN 201911090446 A CN201911090446 A CN 201911090446A CN 110777665 A CN110777665 A CN 110777665A
- Authority
- CN
- China
- Prior art keywords
- skylight
- box girder
- piece
- template
- construction method
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 238000011065 in-situ storage Methods 0.000 title claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims 2
- 239000002699 waste material Substances 0.000 description 5
- 238000009415 formwork Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 phenolic aldehyde Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention provides a construction method of a cast-in-place box girder skylight supporting template, which comprises the following steps: connecting one end of a connecting piece with the lower reinforcing piece, enabling the other end of the connecting piece to penetrate through the drilled hole in the bottom template, and enabling the periphery of the bottom template to be tightly attached to the top plate of the poured box girder by lifting the other end of the connecting piece; then connecting the other end of the connecting piece with an upper supporting piece erected on the skylight; mounting skylight reinforcing steel bars and pouring concrete; and after the concrete meets the design requirement, cutting off the connecting piece above the skylight, and dismantling the upper supporting piece above the skylight. The bottom template, the upper supporting piece and the lower reinforcing piece are fixed only by the connecting piece, the connecting piece above the poured box girder top plate is only required to be cut off and the upper supporting piece is only required to be removed, the structure of the box girder skylight is not required to be damaged by a large opening, and the construction is simple, convenient and feasible.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a construction method of a cast-in-place box girder skylight supporting template.
Background
When the conventional cast-in-place box girder is constructed, in order to facilitate the operation of operators, a plurality of skylights need to be arranged on the top plate of each span of the box girder, after the construction is finished, the skylights need to be re-provided with templates for pouring concrete, the conventional skylight supporting templates usually adopt a reverse hanging supporting form of split bolts and steel pipes, and the method has the following technical problems: (1) the split bolt is large in hole and damages the structure of the top plate at the skylight position of the cast-in-place box girder; (2) the split bolts and part of the steel pipes cannot be recycled, so that resource waste is caused; (3) the construction process is complicated.
Disclosure of Invention
Aiming at the problems, the invention provides a construction method of a cast-in-place box girder skylight supporting template.
The purpose of the invention is realized by adopting the following technical scheme:
a construction method of a cast-in-place box girder skylight supporting template comprises a bottom template, an upper supporting piece, a lower reinforcing piece and a connecting piece; the width of the bottom template is greater than that of the skylight; the length of the upper supporting piece and the length of the lower reinforcing piece are both larger than the width of the skylight;
the construction method comprises the following steps:
connecting one end of the connecting piece with the lower reinforcing piece, enabling the other end of the connecting piece to penetrate through the drilled hole in the bottom template, and enabling the periphery of the bottom template to be tightly attached to the top plate of the poured box girder by lifting the other end of the connecting piece; then connecting the other end of the connecting piece with an upper supporting piece erected on the skylight;
mounting skylight reinforcing steel bars and pouring concrete;
and after the concrete meets the design requirement, cutting off the connecting piece above the skylight, and dismantling the upper supporting piece above the skylight.
In an optional embodiment, the construction method further comprises:
drilling a plurality of boreholes in the bottom form.
In an alternative embodiment, the width of the bottom formwork is 5-10 cm wider than that of the skylight.
In an alternative embodiment, the length of the upper support piece and the length of the lower reinforcing piece are both 5-10 cm wider than the width of the skylight.
In an optional embodiment, the upper supporting member is one or more of a batten, a section steel and a steel pipe;
and/or the presence of a gas in the gas,
the lower reinforcing piece is made of battens.
In an alternative embodiment, the bottom form is a phenolic plate.
In an optional embodiment, the thickness of the bottom die plate is 1.8-2.2 cm.
In an alternative embodiment, the connecting member is an iron wire.
In an alternative embodiment, the diameter of the iron wire is not less than 0.7 mm.
The invention has the beneficial effects that: the conventional skylight supporting template usually adopts a counter-hanging supporting form of counter-pull bolts and steel pipes, the counter-pull bolts in the supporting form have too large diameters, required holes are large, the structure of a top plate at the skylight position of the cast-in-place box girder can be damaged, then the counter-pull bolts and the steel pipes positioned below the skylight cannot be recycled, and the resource waste is caused, aiming at the defects of the supporting form, the novel supporting template is adopted, when the supporting template is used for construction, a phenolic plate, an upper supporting piece and a wood square below the skylight are fixed by using iron wires, the construction is convenient, the iron wires above the poured box girder top plate are cut off during the dismounting, the upper supporting piece is dismounted, and compared with the counter-hanging supporting form of the counter-pull bolts and the steel pipes, the larger holes are not needed, and the structure of the top plate at the skylight position of the cast-in-place box girder can not be damaged; secondly, the steel wire is used for fixing, and compared with the utilization of the split bolt, the construction is simpler and more convenient; and moreover, the cost of the iron wires and the battens is low, the cost is saved, the disassembled upper supporting piece can be recycled, and the waste of resources is also avoided.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a sectional view of a support for a cast-in-place box girder according to an embodiment of the present invention.
Reference numerals: the structure comprises a bottom template 1, an upper supporting piece 2, a lower reinforcing piece 3, a connecting piece 4, a poured box girder top plate 5 and a skylight 6.
Detailed Description
The invention is further described with reference to the following examples.
Referring to fig. 1, the cast-in-place box girder skylight supporting template comprises a bottom template 1, an upper supporting piece 2, a lower reinforcing piece 3 and a connecting piece 4; the width of the bottom template 1 is larger than that of the skylight 6; the length of the upper supporting part 2 and the length of the lower reinforcing part 3 are both larger than the width of the skylight 6.
In a feasible implementation mode, the bottom template 1 is a phenolic plate, the thickness of the phenolic plate is 1.8-2.2 cm, and the phenolic plate mainly has the function of a template. Preferably, the thickness of the phenolic plate is 1.8 cm.
In one possible embodiment, the phenolic board is drilled with a small bore drill to produce a phenolic board having a plurality of drilled holes.
In a possible embodiment, the width of the phenolic plate is 5-10 cm wider than the width of the skylight 6.
In one possible embodiment, the upper support 2 is one or more of a batten, a section steel and a steel pipe. The length of the upper supporting piece 2 is 5-10 cm wider than the width of the skylight 6. Preferably, the upper support 2 is a batten.
In a feasible embodiment, the lower reinforcing pieces 3 are battens, the length of each batten is 5-10 cm wider than the width of the skylight 6, and the battens play a role in reinforcing the strength and the rigidity of the phenolic aldehyde plate.
In a possible embodiment, the connecting piece 5 is an iron wire, the diameter of which is not less than 0.7 mm.
The construction method for construction by using the support template comprises the following steps:
drilling holes on the phenolic plate by using an electric drill with a small aperture, wherein the drilling positions and the drilling number can be set according to engineering requirements;
connecting one end of the connecting piece 4 with the lower reinforcing piece 3, enabling the other end of the connecting piece 4 to penetrate through a drilled hole in the bottom formwork 1, and enabling the periphery of the bottom formwork 1 to be tightly attached to a poured box girder top plate 5 by lifting the other end of the connecting piece 4; then, the other end of the connecting piece 4 is connected with an upper supporting piece 2 erected on the skylight;
mounting skylight reinforcing steel bars and pouring concrete;
and after the concrete meets the design requirement, cutting off the connecting piece above the skylight 6, and detaching the upper supporting piece above the skylight 6.
The invention has the beneficial effects that: the conventional skylight supporting template usually adopts a reverse hanging supporting form of split bolts and steel pipes, the diameter of the split bolts in the supporting form is too large, the required holes are also large, the structure of a top plate at the skylight position of the cast-in-place box girder can be damaged, and then the split bolts and the steel pipes positioned below the skylight cannot be recycled, so that the resource waste is caused; secondly, the steel wire is used for fixing, and compared with the utilization of the split bolt, the construction is simpler and more convenient; and moreover, the cost of the iron wires and the battens is low, the cost is saved, the removed battens can be recycled, and the waste of resources is also avoided.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The construction method of the cast-in-situ box girder skylight support template is characterized in that the support template comprises a bottom template, an upper support piece, a lower reinforcement piece and a connecting piece; the width of the bottom template is greater than that of the skylight; the length of the upper supporting piece and the length of the lower reinforcing piece are both larger than the width of the skylight;
the construction method comprises the following steps:
connecting one end of the connecting piece with the lower reinforcing piece, enabling the other end of the connecting piece to penetrate through the drilled hole in the bottom template, and enabling the periphery of the bottom template to be tightly attached to the top plate of the poured box girder by lifting the other end of the connecting piece; then connecting the other end of the connecting piece with an upper supporting piece erected on the skylight;
mounting skylight reinforcing steel bars and pouring concrete;
and after the concrete meets the design requirement, cutting off the connecting piece above the skylight, and dismantling the upper supporting piece above the skylight.
2. The construction method of the cast-in-place box girder skylight support template according to claim 1, characterized in that the construction method further comprises:
drilling a plurality of boreholes in the bottom form.
3. The construction method of the cast-in-place box girder skylight support template as claimed in claim 1, wherein the width of the bottom template is 5-10 cm wider than the width of the skylight.
4. The construction method of the cast-in-place box girder skylight support template as claimed in claim 1, wherein the length of the upper support member and the length of the lower reinforcement member are both 5-10 cm wider than the width of the skylight.
5. The construction method of the cast-in-place box girder skylight support template as claimed in claim 1, wherein the upper support member is one or more of a batten, a section steel and a steel pipe;
and/or the presence of a gas in the gas,
the lower reinforcing piece is made of battens.
6. The construction method of the cast-in-place box girder skylight support template as claimed in claim 1, wherein the bottom template is a phenolic plate.
7. The construction method of the cast-in-place box girder skylight support template as claimed in claim 6, wherein the thickness of the phenolic plate is 1.8-2.2 cm.
8. The construction method of the cast-in-place box girder skylight support template as claimed in claim 1, wherein the connecting piece is an iron wire.
9. The construction method of the cast-in-place box girder skylight support template as claimed in claim 8, wherein the diameter of the iron wire is not less than 0.7 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911090446.7A CN110777665A (en) | 2019-11-08 | 2019-11-08 | Construction method of cast-in-situ box girder skylight supporting template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911090446.7A CN110777665A (en) | 2019-11-08 | 2019-11-08 | Construction method of cast-in-situ box girder skylight supporting template |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110777665A true CN110777665A (en) | 2020-02-11 |
Family
ID=69390282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911090446.7A Pending CN110777665A (en) | 2019-11-08 | 2019-11-08 | Construction method of cast-in-situ box girder skylight supporting template |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110777665A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064510A (en) * | 2020-09-08 | 2020-12-11 | 宁波市建设集团股份有限公司 | Cast-in-place decking assembled hangs mode structure |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3215389A (en) * | 1963-12-11 | 1965-11-02 | Chester I Williams | Top-adjustment beam hanger |
| US3383080A (en) * | 1966-02-02 | 1968-05-14 | James W. Frisbie | Overhang bracket |
| US20050086887A1 (en) * | 2002-11-01 | 2005-04-28 | The Ruhlin Company | Overhang falsework |
| CN201891260U (en) * | 2010-12-09 | 2011-07-06 | 大荣建设集团有限公司 | Hanging template |
| CN202416184U (en) * | 2011-12-29 | 2012-09-05 | 中建七局第一建筑有限公司 | Construction device for formwork for longitudinal wet joint of box girder |
| CN104947597A (en) * | 2015-07-07 | 2015-09-30 | 中建三局第二建设工程有限责任公司 | Concrete box girder manhole model sealing system and construction method |
| CN107245933A (en) * | 2017-07-06 | 2017-10-13 | 中建六局土木工程有限公司 | A kind of method for cast-in-situ box girder top plate preformed hole construction |
| CN108374555A (en) * | 2018-05-04 | 2018-08-07 | 舜杰建设（集团）有限公司 | Girder with rolled steel section en cased in concrete, which pours, to be smash without support hung formwork structure and method |
| CN208328716U (en) * | 2018-06-14 | 2019-01-04 | 郭东良 | A kind of auxiliary construction structure of bridge box and beam |
| JP2019002140A (en) * | 2017-06-12 | 2019-01-10 | 青木あすなろ建設株式会社 | Steel form for constructing base mortar and construction method of base mortar using the same |
| CN208734075U (en) * | 2018-07-24 | 2019-04-12 | 北京首钢建设集团有限公司 | A kind of steel structure concrete platform template installs structure |
-
2019
- 2019-11-08 CN CN201911090446.7A patent/CN110777665A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3215389A (en) * | 1963-12-11 | 1965-11-02 | Chester I Williams | Top-adjustment beam hanger |
| US3383080A (en) * | 1966-02-02 | 1968-05-14 | James W. Frisbie | Overhang bracket |
| US20050086887A1 (en) * | 2002-11-01 | 2005-04-28 | The Ruhlin Company | Overhang falsework |
| CN201891260U (en) * | 2010-12-09 | 2011-07-06 | 大荣建设集团有限公司 | Hanging template |
| CN202416184U (en) * | 2011-12-29 | 2012-09-05 | 中建七局第一建筑有限公司 | Construction device for formwork for longitudinal wet joint of box girder |
| CN104947597A (en) * | 2015-07-07 | 2015-09-30 | 中建三局第二建设工程有限责任公司 | Concrete box girder manhole model sealing system and construction method |
| JP2019002140A (en) * | 2017-06-12 | 2019-01-10 | 青木あすなろ建設株式会社 | Steel form for constructing base mortar and construction method of base mortar using the same |
| CN107245933A (en) * | 2017-07-06 | 2017-10-13 | 中建六局土木工程有限公司 | A kind of method for cast-in-situ box girder top plate preformed hole construction |
| CN108374555A (en) * | 2018-05-04 | 2018-08-07 | 舜杰建设（集团）有限公司 | Girder with rolled steel section en cased in concrete, which pours, to be smash without support hung formwork structure and method |
| CN208328716U (en) * | 2018-06-14 | 2019-01-04 | 郭东良 | A kind of auxiliary construction structure of bridge box and beam |
| CN208734075U (en) * | 2018-07-24 | 2019-04-12 | 北京首钢建设集团有限公司 | A kind of steel structure concrete platform template installs structure |
Non-Patent Citations (1)
| Title |
|---|
| 北京土木建筑学会: "《市政基础设施工程施工组织设计与施工方案》", 30 November 2015, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064510A (en) * | 2020-09-08 | 2020-12-11 | 宁波市建设集团股份有限公司 | Cast-in-place decking assembled hangs mode structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101813069B (en) | Foundation for enabling anchoring of wind turbine tower thereto by means of replaceable through-bolts | |
| CN103741792B (en) | Overall assembling frame system and construction method | |
| CN106968180B (en) | A kind of dry type connection method of the concrete slab and girder steel of the mixed combination beam of steel- | |
| CN203429641U (en) | Single-side supporting formwork reinforcing structure system for building construction | |
| CN105544970A (en) | Composite floor slab cast-in-place slab fixing device with bottom mold and construction method | |
| CN101748887A (en) | Bin wall template construction device of cylinder bin with large diameter | |
| CN105464216A (en) | Construction method for ultrahigh oblique post with super-large cross section based on integral lifting formwork reinforcing system | |
| CN103161313B (en) | Connection method of main reinforcement of constructional column of infilled wall and framed girder | |
| CN110777665A (en) | Construction method of cast-in-situ box girder skylight supporting template | |
| CN215594016U (en) | Mounting structure of shock insulation support | |
| CN110273543B (en) | Convenient floor-lowering formwork-hanging construction method for mounting and dismounting tool | |
| CN113279582A (en) | Hanging construction method for overhanging and hanging type cast-in-place plate | |
| CN101787798A (en) | Construction process for reinforced concrete beam bottom bracing and reinforcing template | |
| CN113529943A (en) | Concrete support and lattice column connecting device and method convenient to dismantle | |
| CN211036723U (en) | A cast-in-place box girder skylight supporting formwork structure | |
| CN214834809U (en) | A formwork-free jig | |
| CN215256220U (en) | Tunnel portal guide wall hangs mould structure | |
| KR20070087782A (en) | Top-down concrete slab construction method | |
| CN201106284Y (en) | Stair step combined template | |
| CN214614095U (en) | Suspension type concrete strutting arrangement | |
| CN116905717A (en) | Integral light steel keel suspended ceiling installation construction method | |
| CN201581635U (en) | Formwork construction device for wall of large diameter silo | |
| CN113846809A (en) | Mounting method of prefabricated overhanging gutter | |
| CN211007079U (en) | A pre-buried component structure for secondary structure wall lacing wire | |
| CN217998075U (en) | A prefabricated foundation pit support structure |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200211 |