CN215289758U - Internal mold system of cantilever casting construction closure section - Google Patents
Internal mold system of cantilever casting construction closure section Download PDFInfo
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- CN215289758U CN215289758U CN202121704378.1U CN202121704378U CN215289758U CN 215289758 U CN215289758 U CN 215289758U CN 202121704378 U CN202121704378 U CN 202121704378U CN 215289758 U CN215289758 U CN 215289758U
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- 238000010276 construction Methods 0.000 title claims abstract description 33
- 238000005266 casting Methods 0.000 title claims abstract description 5
- 238000007596 consolidation process Methods 0.000 claims abstract description 28
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 241001330002 Bambuseae Species 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 239000011120 plywood Substances 0.000 claims description 5
- 239000004567 concrete Substances 0.000 abstract description 31
- 238000009415 formwork Methods 0.000 abstract 2
- 239000004540 pour-on Substances 0.000 abstract 1
- 239000002023 wood Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000007306 turnover Effects 0.000 description 4
- 239000011440 grout Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a cantilever casting construction closes up interior mode system of section, the centre form system set up between the pouring structure of box girder closure section structure both sides, and the centre form system includes bottom formwork subassembly, bottom formwork subassembly includes bottom plate top panel, the fixed longeron of top panel, centre form end longeron, centre form end crossbeam and temporary consolidation device, between the longeron at the bottom of the adjacent centre form, the downside of centre form end crossbeam forms a set of vibration mouth of reserving, and the both ends of lath are set up respectively on having pour the bottom plate at the upside of the closure section bottom plate of having pour on the bottom plate flatly, and the bottom plate top panel passes through the fixed longeron of top panel and centre form end longeron fixed connection. The utility model discloses centre form system efficiency of construction is high, need not wait for bottom plate concrete strength, folds section bottom plate, web and roof and can pour in succession, has shortened pouring time greatly, has reduced workman operating time at night, can accomplish fast and can improve concrete placement efficiency.
Description
Technical Field
The utility model belongs to the centre form system construction is pour to the cantilever, especially a centre form system that the section was foldd in the construction is pour to the cantilever.
Background
In the construction of the cantilever hanging basket, the closure section is generally 1.5-2 m, the traditional combined steel template is generally adopted for the box-type beam cantilever construction internal mold, and the equal-strength time of concrete is generally prolonged when the closure section is poured. In the traditional construction steps, a bottom plate, a web plate and a top plate are generally poured firstly. Wherein, the top of the bottom plate is not provided with a template independently. According to the early fluidity of the concrete, after the bottom plate concrete is poured, in the subsequent web plate concrete pouring, the web plate concrete is easy to enter the bottom plate concrete from the top of the bottom plate template due to the dead weight of the web plate concrete, and the bottom plate bears the concrete pressure to cause the grout turning. The concrete is wasted due to the slurry turning, and the quality of the bottom plate concrete is not over-limit. Meanwhile, the time for waiting for strength of a section of concrete is generally required to be increased during the pouring of the closure section, and the method for reducing concrete vibration at the chamfer of the web plate is adopted, so that the total length of the closure section during the concrete pouring is long, whether the concrete strength meets the design requirement of the web plate requires full dependence on experience, and the construction period is wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an internal mold system of a cantilever casting construction closure section, which aims to solve the technical problems that the joint of the bottom web of the existing box beam cantilever construction closure section is easy to generate in-box grout turnover in a combined steel template, thereby causing concrete waste and ensuring that the quality of bottom plate concrete is not over; and the technical problems that the time for waiting the strength of a section of concrete is generally increased and the construction period is wasted when the closure section is poured are solved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an internal mold system of a cast-in-place closure section of a cantilever construction is erected between poured structures on two sides of a box girder closure section structure, the poured structures comprise poured bottom plates, poured web plates and poured top plates, the box girder closure section structure comprises a closure section bottom plate, a closure section web plate and a closure section top plate which are arranged corresponding to the poured structures,
the inner mold system is transversely positioned in the box girder inner square along the bridge direction, longitudinally strides the box girder closure section structure along the bridge direction, and two sides are arranged between the poured bottom plate and the poured top plate,
the internal mold system comprises a bottom template assembly, the bottom template assembly comprises a bottom plate upper panel, an upper panel fixing longitudinal beam, an internal mold bottom cross beam and a temporary consolidation device,
the inner mold bottom longitudinal beams are arranged in a group at intervals in the transverse bridge direction, the lower sides of the inner mold bottom longitudinal beams are tightly attached to the upper side of the poured bottom plate, the inner mold bottom cross beams are arranged in a group at intervals in the bridge direction, the lower sides of the inner mold bottom cross beams are tightly attached to the upper sides of the inner mold bottom longitudinal beams and are fixedly connected,
the temporary consolidation devices are arranged at the connecting positions of the poured web plate and the poured bottom plate in pairs, the bottom of the temporary consolidation device is embedded and anchored into the poured bottom plate, the number of the pairs of the temporary consolidation devices is matched with the number of the inner mold bottom cross beams on the poured structure, two ends of the inner mold bottom cross beam are respectively and correspondingly fixedly connected to the temporary consolidation devices at two sides,
a group of reserved vibrating openings are formed between the adjacent inner mold bottom longitudinal beams and at the lower side of the inner mold bottom cross beam,
the bottom plate upper panel is a set of laths which are longitudinally arranged, the width of each lath corresponds to the transverse bridge width of each reserved vibrating opening, the length of each lath corresponds to the forward bridge length of each reserved vibrating opening, the laths are flatly laid on the poured folded section bottom plate, the two ends of each lath are respectively overlapped on the poured bottom plate, and the bottom plate upper panel is fixedly connected with the internal mold bottom longitudinal beam through the upper panel fixed longitudinal beam.
The upper panel of the bottom plate is a bamboo plywood.
The lower side of the upper panel fixing longitudinal beam is fixedly connected with the upper side of the upper panel of the bottom plate, the upper side of the upper panel fixing longitudinal beam is fixedly connected with the lower side of the inner mould bottom cross beam,
the upper panel fixing longitudinal beams in the middle are arranged on two sides of each internal mold bottom longitudinal beam in pairs, the inner sides of the upper panel fixing longitudinal beams are respectively connected with the internal mold bottom longitudinal beams, and the outer sides of the upper panel fixing longitudinal beams on the side parts are fixedly connected to the inner sides of the temporary consolidation devices.
The internal mold system also comprises a top plate template component, the top plate template component comprises an internal mold supporting frame, an internal mold top longitudinal beam, an internal mold top cross beam and a top plate lower panel,
the centre form support frame includes pole setting and horizontal pole, the pole setting is along horizontal bridge to the interval setting in a row, along following the bridge to the interval setting in a row, wherein two pole settings on the edge correspond interim consolidation device respectively in proper order to the bottom of this pole setting in a row falls on the upside of interim consolidation device.
The bottoms of other vertical rods are arranged on the inner die bottom cross beam, the interval width of the vertical rods in a row corresponds to the arrangement interval of the inner die bottom cross beam, and the interval width of the vertical rods in a row corresponds to the arrangement interval of the inner die bottom longitudinal beams.
The top longitudinal beams of the inner mold are parallel to the bottom longitudinal beams of the inner mold and are arranged on the top supports of the vertical rods in a one-to-one correspondence manner,
the inner mold top cross beam is parallel to the inner mold bottom cross beam and is fixedly connected with the upper side of the inner mold top longitudinal beam,
and the lower top plate is tiled on the upper side surface of the beam at the top of the inner mould and on the lower side of the top plate of the closure segment to be poured.
Compared with the prior art the utility model has the following characteristics and beneficial effect:
the utility model discloses increase bottom plate top mould on the basis of interior mode system, make the template system opening cell type of whole bottom plate change into a square closed structure to transmit power to pouring the beam section through the support system, thereby avoid foldinging a web construction and turn over the thick liquid, follow-up folding section web and foldinging a roof and can pour the completion in succession.
The utility model discloses according to the early mobility characteristics of concrete, only set up the support system before the bottom plate concreting, the support does not bear any load temporarily, treat to fold section bottom plate concrete placement and accomplish the back, increase bottom plate top mould and adopt square timber and wood wedge wedging, the template system opening cell type that makes whole bottom plate is transformed into square closed structure, when pouring and fold section web and fold section top plate concrete, concrete pressure loops through the bottom plate top panel, longeron at the bottom of the centre form, centre form bottom beam, centre form support frame transmits to built the structure in proper order on, thereby the problem of turning over the thick liquid to the bottom plate easily when having solved the web and pouring, it is extravagant to reduce the concrete.
The utility model discloses usable ordinary steel pipe of centre form system, square timber and bamboo plywood, the economy of drawing materials is convenient, and the efficiency of construction is high, and the turnover number of times is many, and convenient to use can be according to the construction needs, uses in a flexible way, can install fast and dismantle, and social and economic benefits are showing, and application prospect is good.
The utility model discloses centre form system efficiency of construction is high, need not wait for bottom plate concrete strength, folds section bottom plate, web and roof and can pour in succession, has shortened pouring time greatly, has reduced workman operating time at night, can accomplish fast and can improve concrete placement efficiency.
The utility model discloses centre form system flexibility ratio is high, and the section of folding up of different roof beam types all can transform the material and use.
The utility model is suitable for an adopt the prestressed concrete cantilever beam bridge, continuous beam bridge, T shape steel structure bridge, the continuous steel structure bridge etc. of cantilever construction to stride a footpath bridge and fold the section and all can adopt this utility model construction greatly.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic cross-sectional structure view of the upper panel of the uncovered base plate of the present invention.
Fig. 2 is a schematic longitudinal sectional view of fig. 1.
Fig. 3 is a schematic cross-sectional structure view of the upper panel of the capped bottom plate of the present invention.
Fig. 4 is a schematic longitudinal sectional structure of fig. 3.
Reference numerals: 1-poured bottom plate, 2-poured web plate, 3-poured top plate, 4-closure section bottom plate, 5-closure section top plate, 6-bottom plate upper panel, 7-upper panel fixed longitudinal beam, 8-internal mold bottom longitudinal beam, 9-internal mold bottom cross beam, 10-temporary consolidation device, 11-reserved vibrating port, 12-internal mold support frame, 121-vertical rod, 122-cross rod, 13-internal mold top longitudinal beam, 14-internal mold top cross beam and 15-top plate lower panel.
Detailed Description
Referring to fig. 1-2, an internal mold system for a cast-in-place cantilever construction closure segment is erected between poured structures on both sides of a box girder closure segment structure, the poured structures including a poured bottom plate 1, a poured web plate 2, and a poured top plate 3, and the box girder closure segment structure including a closure segment bottom plate 4, a closure segment web plate, and a closure segment top plate 5, which are disposed corresponding to the poured structures.
The transverse bridge direction of the internal mold system is positioned in a box girder internal opening character, the longitudinal span box girder closure section structure is arranged along the bridge direction, and two sides of the internal mold system are arranged between the poured bottom plate 1 and the poured top plate 3.
The internal mold system comprises a bottom template assembly, wherein the bottom template assembly comprises a bottom plate upper panel 6, an upper panel fixing longitudinal beam 7, an internal mold bottom longitudinal beam 8, an internal mold bottom cross beam 9 and a temporary consolidation device 10.
The inner mould bottom longitudinal beams 8 are arranged in a group at intervals in the transverse bridge direction, the lower sides of the inner mould bottom longitudinal beams are tightly attached to the upper side of the poured bottom plate 3, the inner mould bottom cross beams 9 are arranged in a group at intervals in the bridge direction, and the lower sides of the inner mould bottom cross beams 9 are tightly attached to the upper side of the inner mould bottom longitudinal beams 8 and fixedly connected.
The temporary consolidation devices 10 are arranged at the connecting positions of the poured web 2 and the poured bottom plate 1 in pairs, the bottoms of the temporary consolidation devices 10 are embedded and anchored into the poured bottom plate 1, the number of the pairs of the temporary consolidation devices is matched with the number of the inner mold bottom cross beams 9 arranged on the poured structure, and two ends of each inner mold bottom cross beam 9 are respectively and correspondingly fixedly connected to the temporary consolidation devices 10 on two sides.
A group of reserved vibrating openings 11 are formed between the adjacent inner mold bottom longitudinal beams 8 and on the lower side of the inner mold bottom cross beam 9.
The bottom plate upper panel 6 is a group of laths which are longitudinally arranged, the widths of the laths correspond to the transverse bridge-direction widths of the reserved vibrating openings 11, the lengths of the laths correspond to the forward bridge-direction lengths of the reserved vibrating openings 11, the laths are flatly laid on the upper side of the poured closure section bottom plate 4, the two ends of the laths are respectively overlapped on the poured bottom plate, and the bottom plate upper panel 6 is fixedly connected with the inner mold bottom longitudinal beam 8 through the upper panel fixed longitudinal beam 7.
The lower side of the upper panel fixing longitudinal beam 7 is fixedly connected to the upper side of the bottom plate upper panel 6, and the upper side of the upper panel fixing longitudinal beam 7 is fixedly connected to the lower side of the inner mold bottom cross beam 9. The upper panel fixed longitudinal beams 7 in the middle are arranged on two sides of each internal mold bottom longitudinal beam 8 in pairs, the inner sides of the upper panel fixed longitudinal beams 7 are respectively connected with the internal mold bottom longitudinal beams 8, and the outer sides of the upper panel fixed longitudinal beams 7 on the side parts are fixedly connected with the inner sides of the temporary consolidation devices 10.
In this embodiment, the inner mold bottom longitudinal beam 8 is a square wood with a diameter of 15cm, the inner mold bottom cross beam 9 is a square wood with a diameter of 10cm, the upper panel fixing longitudinal beam 7 is a square wood with a diameter of 15cm, and the bottom panel upper panel 6 is a bamboo plywood with a thickness of 2.5 mm.
The internal mold system further comprises a top plate template assembly, wherein the top plate template assembly comprises an internal mold support frame 12, an internal mold top longitudinal beam 13, an internal mold top cross beam 14 and a top plate lower panel 15.
The internal mold support frame 12 comprises upright rods 121 and cross rods 122, the upright rods 121 are arranged in rows at intervals along the transverse bridge direction, and are arranged in columns at intervals along the bridge direction, wherein two columns of upright rods 121 on the outermost side respectively correspond to the temporary consolidation devices 10 in sequence, and the bottoms of the columns of upright rods 121 are arranged on the upper sides of the temporary consolidation devices 10.
The bottoms of the other vertical rods 121 are arranged on the inner mold bottom cross beam 9, the interval width of the vertical rods 121 in a row corresponds to the arrangement interval of the inner mold bottom cross beam 9, and the interval width of the vertical rods 121 in a row corresponds to the arrangement interval of the inner mold bottom longitudinal beams 8.
All adopt the folding section of cantilever construction all can adopt this utility model construction. In actual construction, the arrangement distance and the material length of the support system can be adjusted according to actual conditions. In this embodiment, the inner mold support frame 12 is a steel tube with a diameter of 48mm and a wall thickness of 3.5 mm. The vertical rods are arranged in 5 rows, and 1 row is arranged on the temporary consolidation devices 10 at two sides respectively. The uprights are arranged in 4 rows. The cross bar is used for supporting to increase the integral rigidity.
The inner mould top longitudinal beam 13 is parallel to the inner mould bottom longitudinal beam 8 and is arranged on the top support of the vertical rod 121 in a one-to-one correspondence with the vertical rod 121. The inner mould top cross beam 14 is parallel to the inner mould bottom cross beam 9 and is fixedly connected to the upper side of the inner mould top longitudinal beam 13. The top plate lower panel 15 is flatly laid on the upper side surface of the inner mold top cross beam 14 and the lower side of the closure section top plate 5 to be poured.
In this embodiment, the inner mold top longitudinal beam 13 is a square wood with a diameter of 15cm, the inner mold top transverse beam 14 is a square wood with a diameter of 10cm, and the top plate lower panel 15 is a bamboo plywood with a thickness of 2.5 mm.
The construction method of the internal mold system of the closure section for the cantilever pouring construction comprises the following construction steps:
firstly, constructing poured structures on two sides, installing outer templates, reinforcing the outer templates after adjusting and correcting the outer templates, and installing a temporary consolidation device 10;
step two, installing an inner side template, building a top plate support system, and simultaneously building an inner mold bottom longitudinal beam 8, an inner mold bottom cross beam 9, an inner mold support frame 12 and a top plate template component in a bottom template component of the inner mold system;
pouring concrete of the closure segment bottom plate 4; carrying out concrete vibration in each reserved vibration opening 11;
fourthly, after concrete pouring of the closure section bottom plate 4 is completed, paving of a bottom plate upper panel 6 in each reserved vibrating opening 11 for one time, and fixedly connecting the upper panel fixing longitudinal beam 7 with the inner mold bottom longitudinal beam 8, inserting the upper panel fixing longitudinal beam 7 into each reserved vibrating opening 11, then fixedly connecting and wedging by adopting wood wedges, and enabling the bottom template assembly to be changed into a square closed type from an open groove type;
fifthly, continuously pouring concrete of the web plate of the folding section and the top plate 5 of the folding section at one time; concrete pressure loops through bottom plate top panel 6, centre form end longeron 8, centre form end crossbeam 9, centre form support frame 12 and transmits to cast structure in proper order on to the problem of the bottom plate grout turnover easily when having solved the web and having pour, can once pour the completion in succession.
Claims (6)
1. The utility model provides an centre form system that cantilever casting construction closed section which characterized in that: the internal mold system is erected between poured structures on two sides of a box girder folding section structure, the poured structures comprise poured bottom plates (1), poured webs (2) and poured top plates (3), the box girder folding section structure comprises folding section bottom plates (4), folding section webs and folding section top plates (5) which are arranged corresponding to the poured structures,
the inner mold system is transversely positioned in the shape of a square inside the box-shaped beam in the bridge direction, longitudinally strides over the box-shaped beam closure section structure along the bridge direction, and two sides are arranged between the poured bottom plate (1) and the poured top plate (3),
the internal mold system comprises a bottom template assembly, the bottom template assembly comprises a bottom plate upper panel (6), an upper panel fixing longitudinal beam (7), an internal mold bottom longitudinal beam (8), an internal mold bottom cross beam (9) and a temporary consolidation device (10),
the inner mold bottom longitudinal beams (8) are arranged in a group at intervals in the transverse bridge direction, the lower sides of the inner mold bottom longitudinal beams are tightly attached to the upper side of the poured bottom plate (1), the inner mold bottom cross beams (9) are arranged in a group at intervals in the bridge direction, the lower sides of the inner mold bottom cross beams (9) are tightly attached to the upper side of the inner mold bottom longitudinal beams (8) and are fixedly connected,
the temporary consolidation devices (10) are arranged at the connecting positions of the poured web plate (2) and the poured bottom plate (1) in pairs, the bottom of the temporary consolidation device (10) is embedded and anchored into the poured bottom plate (1), the number of the pairs of the temporary consolidation devices is matched with the number of the inner mold bottom cross beams (9) on the poured structure, the two ends of the inner mold bottom cross beams (9) are respectively and correspondingly fixedly connected to the temporary consolidation devices (10) at the two sides,
a group of reserved vibrating openings (11) are formed between the adjacent inner mold bottom longitudinal beams (8) and at the lower side of the inner mold bottom cross beam (9),
the bottom plate upper panel (6) is a set of laths which are longitudinally arranged, the width of each lath corresponds to the transverse bridge width of each reserved vibrating opening (11), the length of each lath corresponds to the forward bridge length of each reserved vibrating opening (11), the laths are flatly laid on the poured bottom plate at the upper side of the closure section bottom plate (4) and the two ends of each lath, and the bottom plate upper panel (6) is fixedly connected with the inner mold bottom longitudinal beam (8) through the upper panel fixed longitudinal beam (7).
2. The internal mold system of the cast-in-place cantilever construction closure segment according to claim 1, wherein: the upper panel (6) of the bottom plate is a bamboo plywood.
3. The internal mold system of the cast-in-place cantilever construction closure segment according to claim 1, wherein: the lower side of the upper panel fixed longitudinal beam (7) is fixedly connected with the upper side of the upper panel (6) of the bottom plate, the upper side of the upper panel fixed longitudinal beam (7) is fixedly connected with the lower side of the inner mould bottom cross beam (9),
the upper panel fixed longitudinal beams (7) in the middle are arranged on two sides of each internal mold bottom longitudinal beam (8) in pairs, the inner sides of the upper panel fixed longitudinal beams (7) are respectively connected with the internal mold bottom longitudinal beams (8), and the outer sides of the upper panel fixed longitudinal beams (7) on the side parts are fixedly connected to the inner sides of the temporary consolidation devices (10).
4. The internal mold system of the cast-in-place cantilever construction closure segment according to any one of claims 1 to 3, wherein: the internal mold system also comprises a top plate template component and a web plate template component, the top plate template component comprises an internal mold support frame (12), an internal mold top longitudinal beam (13), an internal mold top cross beam (14) and a top plate lower panel (15),
the internal mold support frame (12) comprises vertical rods (121) and cross rods (122), the vertical rods (121) are arranged in rows at intervals along the transverse bridge direction, are arranged in rows at intervals along the bridge direction, wherein two rows of vertical rods (121) on the outermost side correspond to the temporary consolidation devices (10) respectively in sequence, and the bottoms of the vertical rods (121) are arranged on the upper side of the temporary consolidation devices (10).
5. The internal mold system of the cast-in-place cantilever construction closure segment according to claim 4, wherein: the bottoms of the rest upright posts (121) are arranged on the inner die bottom cross beam (9), the interval width of the upright posts (121) in a row corresponds to the arrangement interval of the inner die bottom cross beam (9), and the interval width of the rows of the upright posts (121) corresponds to the arrangement interval of the inner die bottom longitudinal beams (8).
6. The internal mold system of the cast-in-place cantilever construction closure segment according to claim 5, wherein: the inner mold top longitudinal beam (13) is parallel to the inner mold bottom longitudinal beam (8) and is arranged on the top support of the vertical rod (121) in a one-to-one correspondence way with the vertical rod (121),
the inner die top cross beam (14) is parallel to the inner die bottom cross beam (9) and is fixedly connected with the upper side of the inner die top longitudinal beam (13),
and the top plate lower panel (15) is tiled on the upper side surface of the inner mould top beam (14) and the lower side of the closure section top plate (5) to be poured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121704378.1U CN215289758U (en) | 2021-07-26 | 2021-07-26 | Internal mold system of cantilever casting construction closure section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121704378.1U CN215289758U (en) | 2021-07-26 | 2021-07-26 | Internal mold system of cantilever casting construction closure section |
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| Publication Number | Publication Date |
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| CN215289758U true CN215289758U (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121704378.1U Active CN215289758U (en) | 2021-07-26 | 2021-07-26 | Internal mold system of cantilever casting construction closure section |
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| CN (1) | CN215289758U (en) |
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2021
- 2021-07-26 CN CN202121704378.1U patent/CN215289758U/en active Active
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