CN108457193A - Box beam skew web plate formwork erecting structure and its erection method - Google Patents
Box beam skew web plate formwork erecting structure and its erection method Download PDFInfo
- Publication number
- CN108457193A CN108457193A CN201810114447.XA CN201810114447A CN108457193A CN 108457193 A CN108457193 A CN 108457193A CN 201810114447 A CN201810114447 A CN 201810114447A CN 108457193 A CN108457193 A CN 108457193A
- Authority
- CN
- China
- Prior art keywords
- counter
- keel
- bottom plate
- formwork
- support
- 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.)
- Granted
Links
- 238000009415 formwork Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 94
- 239000010959 steel Substances 0.000 claims abstract description 94
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000012634 fragment Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 8
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention provides a kind of box beam skew web plate formwork erecting structure and its erection method, the formwork erecting structure includes：Formwork-support, reaction beam and its fixing device, template system and support system, the reaction beam is fixed on by reaction beam fixing device on the formwork-support, the extending direction of the reaction beam is consistent with the length direction of box beam bottom plate, the bottom of the reaction beam is generally aligned in the same plane with the box beam bottom plate, the reaction beam fixing device includes to drawing reinforcing bar and horizontal support bar, and described pair is drawn reinforcing bar to provide reaction of bearing for the reaction beam；The template system is set to the box girder body both sides；The support system includes that supporting steel pipe, adjustable U supports and U-shaped pedestal, the supporting steel pipe skewed horizontal load connect the reaction beam and the template system.Compared with traditional box beam skew web plate mold method, this method is solid and reliable, convenient and efficient, to drawing reinforcing bar still recoverable, can realize cost efficiency.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a formwork erecting method suitable for inclined or vertical sides of box girder oblique webs and similar symmetrical structures.
Background
In the construction of erecting the box girder oblique web plate formwork in China, a formwork erecting mode of a tool type assembling and splicing steel supporting system, a fastener type steel pipe oblique jacking and diagonal drawing mode, a mode that a tripod support is matched with a split bolt and the like are generally adopted. The tool type assembly steel support system has higher cost; the support frame is in a steel pipe inclined top inclined pulling mode, and the steel pipes are mutually inserted, so that the problem of fastener collision exists, the connection quality cannot be guaranteed, the danger is high, and the manual investment is large; the tripod supports the cooperation and influences the outward appearance effect to the stay bolt mode, bolt hole processing.
Disclosure of Invention
In view of the above situation, the invention provides a box girder oblique web formwork structure and a formwork erecting method thereof, which are stable in structure and convenient and fast to construct, and solve the technical problems of high cost, large labor investment and fastener conflict of the existing formwork erecting method.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a case roof beam oblique web formwork structure, the case roof beam includes two oblique webs of relative setting and connects the case roof beam bottom plate of two oblique web bottoms, formwork structure includes:
the formwork support frame comprises a horizontal cross rod, a vertical upright rod, a vertical inclined rod and a horizontal inclined rod, wherein the horizontal cross rod and the vertical upright rod are connected to form a whole, and the vertical inclined rod and the horizontal inclined rod are respectively connected with the vertical upright rod;
the counter-force beam is arranged on the template support frame through a counter-force beam fixing device, the bottom of the counter-force beam and the box girder bottom plate are positioned on the same horizontal plane, and the extension direction of the counter-force beam is consistent with the length direction of the box girder;
the counter-force beam fixing device comprises counter-pull steel bars and a horizontal support rod, the counter-pull steel bars are arranged along the extension direction of the counter-force beam and are perpendicular to the counter-force beam, closed steel bar sleeves are respectively arranged at two ends of the counter-pull steel bars, and the counter-force beam penetrates through the closed steel bar sleeves; the horizontal support rod is connected with the formwork support frame through a fastener and used for vertically supporting the counter-force beam, and the extending direction of the horizontal support rod is the same as the extending direction of the counter-pulling steel bars;
the formwork system comprises an inclined web formwork, a main keel, a secondary keel and a third-level keel, wherein the extension direction of the third-level keel is along the bridge direction, the secondary keel is perpendicular to the third-level keel, and the main keel is perpendicular to the secondary keel;
the supporting system comprises a supporting steel pipe, an adjustable U support and a U-shaped base, wherein the adjustable U support is arranged at the upper end of the supporting steel pipe, the upper end of the supporting steel pipe is obliquely supported on the main keel and is fixedly bound with the main keel, the U-shaped base is arranged at the lower end of the supporting steel pipe, and the lower end of the supporting steel pipe is supported on the counter-force beam.
In the embodiment of the invention, a bottom plate template is arranged below a bottom plate of the box girder, a bottom plate secondary keel is arranged below the bottom plate template, the extending direction of the bottom plate secondary keel is a transverse bridge direction, two ends of the bottom plate secondary keel extend out of the lower part of the bottom plate template, the main keel at the lowest end is arranged on the bottom plate secondary keel, and the main keel at the lowest end and the bottom plate secondary keel are fixedly connected through iron nails so as to lock the three-stage keel and the oblique web template.
In the embodiment of the invention, the reaction beams are arranged at intervals in the extension direction, and the included angle between each supporting steel pipe and the horizontal supporting rod is not more than 45 degrees.
In the embodiment of the invention, 3 support steel pipes are in a group, the included angle between each support steel pipe and the horizontal support rod in each group of support steel pipes is different, and the distance between each group of support steel pipes is 60 cm.
In the embodiment of the invention, the reaction beam is a batten of 10cm multiplied by 10 cm.
A supporting method of the box girder oblique web formwork structure comprises the following steps:
erecting the template support frame and a box girder bottom plate template system below the proposed box girder;
counter-pulling steel bars are arranged in the extension direction of the counter-pulling steel bars, the counter-pulling steel bars are arranged in the closed steel bar sleeves of the counter-pulling steel bars in a penetrating mode, and the extension direction of the counter-pulling steel bars is along the bridge direction;
temporarily fixing secondary keels along the extending direction of the inclined web plate, installing main keels below the secondary keels, and fixing the lowest main keel on the secondary keel of the bottom plate;
installing a supporting steel pipe, and adjusting the adjustable U support to adjust the elevation and the position of the main keel so as to keep the counter-pull steel bars in a tensioned state;
install tertiary fossil fragments on the secondary joist install oblique web template on the tertiary fossil fragments, finely tune adjustable U holds in the palm in order to adjust oblique web template position, elevation, line type and roughness.
In the embodiment of the invention, the diameter of the counter-pulling steel bar is not less than 16 mm.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
(1) compared with the traditional method for supporting the formwork of the box girder oblique web plate, the method has the advantages that the counter-pulling reinforcing steel bars are used for counter-pulling the counter-force beams at the two ends of the counter-pulling reinforcing steel bars to provide counter-force points, and the supporting steel pipe supporting formwork systems staggered up and down form the formwork structure of the box girder oblique web plate, so that the method is firm, reliable, convenient and fast, the counter-pulling reinforcing steel bars can be recycled, and cost reduction and efficiency improvement can be realized.
(2) The main keel positioned at the lowest end of the secondary keel is fixed with the secondary keel of the bottom plate, so that the oblique web plate template and the box girder bottom plate template can be tightly spliced, and slurry leakage is prevented.
(3) The arrangement of the adjustable U-shaped supports can ensure the accurate position of the template, simultaneously ensure that the counter-pull steel bars are in a tensioned state, and support steel pipes are arranged at intervals in the extension direction of the counter-force beam to avoid overlarge concentrated force of the counter-force beam.
Drawings
Fig. 1 is a schematic elevation view of a box girder inclined web formwork structure of the invention.
Fig. 2 is a schematic view of a split reinforcement node according to the present invention.
Fig. 3 is an enlarged partial schematic view of the invention at the intersection of the floor form and the inclined web form of fig. 1.
The correspondence of reference numerals to components is as follows:
an inclined web plate template 1; a main keel 11; a secondary keel 12; a third level keel 13; a bottom plate template 2; a floor secondary joist 21; a floor main runner 22; a formwork support frame 3; a horizontal cross bar 31; a vertical upright 32; a box girder 4; oppositely pulling the steel bars 5; closing the reinforcement cage 51; a horizontal support bar 52; a counter-force beam 6; a support steel pipe 7; an adjustable U support 71; a U-shaped base 72.
Detailed Description
To facilitate an understanding of the present invention, the following description is made in conjunction with the accompanying drawings and examples.
Referring to fig. 1, the present invention provides a box girder oblique web formwork structure, wherein the box girder includes two oblique webs oppositely disposed and a box girder bottom plate connecting bottoms of the two oblique webs, and the formwork structure includes: template support frame 3, counter-force roof beam 6, template system and support system. Wherein,
the formwork support frame 3 comprises a horizontal cross rod 31, a vertical upright rod 32 and an inclined rod, wherein the horizontal cross rod 31 and the vertical upright rod 32 are connected to form a whole, and the inclined rod is connected with the vertical upright rod 32.
As shown in fig. 1 and 2, the reaction beam 6 is provided on the formwork support frame 3 by a reaction beam fixing device, the bottom of the reaction beam 6 and the box girder bottom plate are located on the same horizontal plane, and the extending direction of the reaction beam 6 coincides with the longitudinal direction of the box girder.
The counter-force beam fixing device comprises counter-pulling steel bars 5 and a horizontal support rod 52, the counter-pulling steel bars 5 are arranged along the extension direction of the counter-force beam 6 and are perpendicular to the counter-force beam 6, closed steel bar sleeves 51 are respectively arranged at two ends of the counter-pulling steel bars 5, and the counter-force beam 6 penetrates through the closed steel bar sleeves 51; the horizontal support bar 52 is connected with the formwork support frame 3 through a fastener (not shown) for vertically supporting the reaction beam 6, and the extending direction of the horizontal support bar 52 is the same as the extending direction of the counter-pulling steel bar 5; the opposite-pulling reinforcing steel bars 5 are in the transverse bridge direction; preferably, the reaction beam is a 10cm × 10cm square. As shown in fig. 3, the formwork system includes an inclined web formwork 1, a main keel 11, a secondary keel 12 and a third-level keel 13, wherein the extension direction of the third-level keel 13 is along the bridge direction, the secondary keel 12 is perpendicular to the third-level keel 13, and the main keel 11 is perpendicular to the secondary keel 12; the box girder bottom plate below is equipped with bottom plate template 2, 2 below of bottom plate template are equipped with bottom plate secondary joist 21, the extending direction of bottom plate secondary joist 21 is horizontal bridge to, the both ends of bottom plate secondary joist 21 are followed bottom plate template 2's below is stretched out, the lower extreme main joist 11 is fixed in on the bottom plate secondary joist 21, the lower extreme main joist 11 with use iron nail fixed connection in order to lock between the bottom plate secondary joist 21 oblique web template 1 with bottom plate template 2.
As shown in fig. 1 and 3, the supporting system includes a supporting steel pipe 7, an adjustable U-shaped bracket 71 and a U-shaped base 72, the adjustable U-shaped bracket 71 is disposed at the upper end of the supporting steel pipe 7, the upper end of the supporting steel pipe 7 obliquely props against the main keel 11 and is fastened to the main keel 11 by an iron wire (not shown), the U-shaped base 72 is disposed at the lower end of the supporting steel pipe 7, and the other lower end of the supporting steel pipe 7 props against the reaction beam 6.
Specifically, the adjustable U-shaped support 71 includes a vertical screw, a U-shaped support fixed to the top end of the screw, and a nut screwed to the outside of the screw, the bottom end of the screw is inserted into the circular tube of the support steel tube 7, and the U-shaped support is clamped to the lower side of the main keel.
As shown in fig. 2, the U-shaped base 72 includes a vertical bottom support insertion rod and a U-shaped bottom support fixed to the top end of the bottom support insertion rod, the U-shaped bottom support is clamped on the counter-force beam 6, and the bottom end of the bottom support insertion rod is inserted into the round tube of the support steel tube 7.
Preferably, the supporting systems are arranged at intervals in the extending direction of the reaction beam 6, and the included angle between each supporting steel pipe 7 and the horizontal supporting rod 5 is not more than 45 °. In the embodiment of the invention, the number of the support steel pipes is 3, the included angle between each support steel pipe 7 and the horizontal support rod 52 in each group of the support steel pipes 7 is different, and the distance between each group of the support steel pipes 7 is 60 cm.
The formwork structure of the box girder oblique web is described above specifically, and the supporting method thereof is described below specifically, and comprises the following steps:
1. the template support frame 3 and a box girder bottom plate template system are erected below the box girder 4 to be built, the box girder bottom plate template system comprises a bottom plate template 2, a bottom plate secondary keel 21 arranged below the bottom plate template 2 and a bottom plate main keel 22 arranged below the bottom plate secondary keel 21, the extending direction of the bottom plate main keel 22 is along the bridge direction, and the bottom plate main keel 22 is perpendicular to the bottom plate secondary keel 21;
2. counter-pulling steel bars 5 are arranged in the extending direction of the counter-pulling steel bars 6, the counter-pulling steel bars 6 are arranged in the closed steel bar sleeves 51 of the counter-pulling steel bars 5 in a penetrating mode, and the extending direction of the counter-pulling steel bars 6 is along the bridge direction;
in the embodiment of the invention, the diagonal reinforcing steel bars 5 are phi 16 through long diagonal reinforcing steel bars, the distance is 1000mm, counterforce is provided for the supporting top of the inclined web plate template 1, the type and the distance of the through long diagonal reinforcing steel bars can be adjusted according to actual stress requirements, and the deformation of the inclined web plate template 1 caused by the tensile elongation of the diagonal reinforcing steel bars 5 is ensured to meet the standard requirement.
3. Temporarily fixing secondary keels 12 along the extending direction of the inclined web plate formwork 1, installing main keels 11 below the secondary keels 12, and fixing one ends of the main keels 11 positioned at the lowest ends of the secondary keels 12 on the secondary keels 21 of the bottom plate of the box girder, wherein the main keels 11 and the secondary keels 12 are battens of 100mm multiplied by 100 mm;
4. installing a supporting steel pipe 7, and adjusting the adjustable U support to adjust the elevation and the position of the main keel 11 so as to keep the counter-pulling steel bar 5 in a tensioned state; in the embodiment of the invention, the support steel pipes 7 are phi 48 common steel pipes, 3 support steel pipes 7 are in one group, the included angles between the support steel pipes 7 and the horizontal support rods 52 in each group of support steel pipes 7 are different, and the distance between each group of support steel pipes 7 is 60 cm.
5. Installing a third-level keel 13 on the secondary keel, installing an oblique web template 1 on the third-level keel 13, and finely adjusting the adjustable U support to adjust the position, elevation, line type and flatness of the oblique web template 1; preferably, the distance between the three-level keels 13 is 15-20 cm, the distance between the secondary keels 12 is 60cm, and the three-level keels 13 are 50mm multiplied by 100mm battens.
While the present invention has been described in detail and with reference to the accompanying drawings and examples, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (7)
1. The utility model provides a case roof beam oblique web formwork structure, the case roof beam includes two oblique webs of relative setting and connects the case roof beam bottom plate of two oblique web bottoms, its characterized in that, formwork structure includes:
the formwork support frame comprises a horizontal cross rod, a vertical upright rod and an inclined rod, the horizontal cross rod and the vertical upright rod are connected to form a whole, and the inclined rod is connected with the vertical upright rod;
the counter-force beam is arranged on the template support frame through a counter-force beam fixing device, the bottom of the counter-force beam and the box girder bottom plate are positioned on the same horizontal plane, and the extension direction of the counter-force beam is consistent with the length direction of the box girder; wherein,
the counter-force beam fixing device comprises counter-pull steel bars and a horizontal support rod, the counter-pull steel bars are arranged along the extension direction of the counter-force beam and are perpendicular to the counter-force beam, closed steel bar sleeves are respectively arranged at two ends of the counter-pull steel bars, and the counter-force beam penetrates through the closed steel bar sleeves; the horizontal support rod is connected with the formwork support frame through a fastener and used for vertically supporting the counter-force beam, and the extending direction of the horizontal support rod is the same as the extending direction of the counter-pulling steel bars;
the formwork system comprises an inclined web formwork, a main keel, a secondary keel and a third-level keel, wherein the extension direction of the third-level keel is along the bridge direction, the secondary keel is perpendicular to the third-level keel, and the main keel is perpendicular to the secondary keel;
the supporting system comprises a supporting steel pipe, an adjustable U support and a U-shaped base, wherein the adjustable U support is arranged at the upper end of the supporting steel pipe, the upper end of the supporting steel pipe is obliquely supported on the main keel and is fixedly bound with the main keel, the U-shaped base is arranged at the lower end of the supporting steel pipe, and the lower end of the supporting steel pipe is supported on the counter-force beam.
2. The box girder oblique web formwork structure according to claim 1, wherein a bottom plate formwork is arranged below a bottom plate of the box girder, a bottom plate secondary keel is arranged below the bottom plate formwork, the extending direction of the bottom plate secondary keel is a transverse bridge direction, two ends of the bottom plate secondary keel extend out of the lower portion of the bottom plate formwork, the main keel at the lowest end is arranged on the bottom plate secondary keel, and the main keel at the lowest end and the bottom plate secondary keel are fixedly connected through iron nails so as to lock the three-stage keel and the oblique web formwork.
3. The box girder oblique web formwork structure of claim 1, wherein each of the support steel pipes is arranged at intervals in the extension direction of the counter-force beam, and the included angle between the support steel pipe and the horizontal support rod is not more than 45 °.
4. The box girder oblique web formwork structure according to claim 3, wherein the number of the supporting steel pipes is 3, the included angle between each supporting steel pipe and the horizontal supporting rod in each group of the supporting steel pipes is different, and the distance between each group of the supporting steel pipes is 60 cm.
5. The box girder oblique web formwork structure of claim 1, wherein the counter-force beam is a 10cm x 10cm square.
6. A method for erecting a box girder oblique web formwork structure according to any one of claims 1 to 5, comprising the steps of:
erecting the template support frame and a box girder bottom plate template system below the proposed box girder;
counter-pulling steel bars are arranged in the extension direction of the counter-pulling steel bars, the counter-pulling steel bars are arranged in the closed steel bar sleeves of the counter-pulling steel bars in a penetrating mode, and the extension direction of the counter-pulling steel bars is along the bridge direction;
temporarily fixing secondary keels along the extending direction of the inclined web plate, installing main keels below the secondary keels, and fixing the lowest main keel on the secondary keel of the bottom plate;
installing a supporting steel pipe, and adjusting the adjustable U support to adjust the elevation and the position of the main keel so as to keep the counter-pull steel bars in a tensioned state;
install tertiary fossil fragments on the secondary joist install oblique web template on the tertiary fossil fragments, finely tune adjustable U holds in the palm in order to adjust oblique web template position, elevation, line type and roughness.
7. The box girder oblique web formwork method according to claim 6, wherein the diameter of the counter-pulling reinforcement bar is not less than 16 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114447.XA CN108457193B (en) | 2018-02-06 | 2018-02-06 | Box beam skew web plate formwork erecting structure and its erection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114447.XA CN108457193B (en) | 2018-02-06 | 2018-02-06 | Box beam skew web plate formwork erecting structure and its erection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108457193A true CN108457193A (en) | 2018-08-28 |
| CN108457193B CN108457193B (en) | 2019-07-30 |
Family
ID=63239734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810114447.XA Active CN108457193B (en) | 2018-02-06 | 2018-02-06 | Box beam skew web plate formwork erecting structure and its erection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108457193B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457591A (en) * | 2018-12-29 | 2019-03-12 | 山东志特新材料科技有限公司 | A kind of box girder inner formwork standard paragraphs aluminum alloy mould plate system and its construction method |
| CN111608091A (en) * | 2020-05-27 | 2020-09-01 | 中交路桥建设有限公司 | Cast-in-place box girder cantilever support and mounting method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200189326Y1 (en) * | 1999-12-27 | 2000-07-15 | 김근택 | Incremental launching method type pc box girder bridge making mold system |
| CN104963290A (en) * | 2015-07-08 | 2015-10-07 | 杭州江润科技有限公司 | Mold supporting structure for variable cross-section cast-in-place box girder at section combining horizontal and longitudinal curves, and construction method of the mold supporting structure |
| CN105821769A (en) * | 2016-04-01 | 2016-08-03 | 上海城建市政工程（集团）有限公司 | Large-angle inclined leg pier pouring construction method |
| CN106758821A (en) * | 2016-11-22 | 2017-05-31 | 中建四局第五建筑工程有限公司 | The method of cast-in-situ box girder side form support and its box girder formwork support meanss of use |
-
2018
- 2018-02-06 CN CN201810114447.XA patent/CN108457193B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200189326Y1 (en) * | 1999-12-27 | 2000-07-15 | 김근택 | Incremental launching method type pc box girder bridge making mold system |
| CN104963290A (en) * | 2015-07-08 | 2015-10-07 | 杭州江润科技有限公司 | Mold supporting structure for variable cross-section cast-in-place box girder at section combining horizontal and longitudinal curves, and construction method of the mold supporting structure |
| CN105821769A (en) * | 2016-04-01 | 2016-08-03 | 上海城建市政工程（集团）有限公司 | Large-angle inclined leg pier pouring construction method |
| CN106758821A (en) * | 2016-11-22 | 2017-05-31 | 中建四局第五建筑工程有限公司 | The method of cast-in-situ box girder side form support and its box girder formwork support meanss of use |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457591A (en) * | 2018-12-29 | 2019-03-12 | 山东志特新材料科技有限公司 | A kind of box girder inner formwork standard paragraphs aluminum alloy mould plate system and its construction method |
| CN109457591B (en) * | 2018-12-29 | 2024-03-15 | 山东志特新材料科技有限公司 | Aluminum alloy template system for standard section of box girder internal mold and construction method of aluminum alloy template system |
| CN111608091A (en) * | 2020-05-27 | 2020-09-01 | 中交路桥建设有限公司 | Cast-in-place box girder cantilever support and mounting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108457193B (en) | 2019-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104563494B (en) | A kind of conversion support system for socket joint dish button steel tube frame and construction | |
| JP5594792B2 (en) | Structural reinforcement apparatus and method | |
| CN204475846U (en) | A kind of conversion support system for socket joint dish button steel tube frame | |
| CN108457193B (en) | Box beam skew web plate formwork erecting structure and its erection method | |
| CN110952774A (en) | Method and system for building large-span beam supporting system | |
| CN111364508A (en) | Method for reinforcing inner support of large underground comprehensive pipe gallery without external formwork wall plate | |
| CN210195269U (en) | A no pole setting braced system for assembled steel construction building superimposed sheet floor | |
| CN112049415A (en) | Construction method of cornice formwork | |
| CN213654231U (en) | Four-corner supporting platform frame for cornice formwork | |
| CN215212312U (en) | Fixing clamp for concrete guide wall or beam mould | |
| CN214658863U (en) | Long inclined plane fair-faced concrete formwork support system with inclination angle larger than 45 degrees | |
| CN213038845U (en) | Support system | |
| CN218771867U (en) | Photovoltaic support | |
| CN112814384A (en) | Floor slab reverse supporting system based on steel pipe bundle combined structure and construction method | |
| CN102261131B (en) | Connector for building frame structures | |
| CN210086801U (en) | Building templates quick assembly disassembly combined system | |
| CN221346309U (en) | Supporting-free reinforcing device for stiff beam template | |
| CN214656457U (en) | Socket type support frame suitable for change of section of inner cavity of tower column | |
| CN220599309U (en) | Precast concrete beam side shelving bracket system | |
| CN216196610U (en) | Integral fixture for beam side wall | |
| CN217480820U (en) | Oblique roofing template primary and secondary beam connection mounting structure and power transmission component thereof | |
| CN215407309U (en) | Welding platform structure for erecting steel pipe support frame | |
| CN219528399U (en) | Horn mouth double-upright steel template | |
| CN221567817U (en) | Steel frame type steel pipe outer scaffold device | |
| CN219471305U (en) | Light steel joist for mounting building curtain wall |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |