CN212835495U - Adjustable formwork support frame for inclined top plate of new and old underground engineering - Google Patents
Adjustable formwork support frame for inclined top plate of new and old underground engineering Download PDFInfo
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- CN212835495U CN212835495U CN202020734067.9U CN202020734067U CN212835495U CN 212835495 U CN212835495 U CN 212835495U CN 202020734067 U CN202020734067 U CN 202020734067U CN 212835495 U CN212835495 U CN 212835495U
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Abstract
The utility model discloses a formwork support frame with adjustable new and old underground works slope roof, including formwork support board, auxiliary stay pole, internal thread lifter, drive double-screw bolt, protection steel bushing, driven bevel gear, initiative bevel gear and fixed bolster. The utility model discloses a drive bevel gear rotates (driven by twist grip) to the driven bevel gear of drive is rotatory, turns into vertical direction rotary motion with horizontal direction rotary motion, drives the rotatory feasible complex internal thread lifter lift with it of drive double-screw bolt, and the bearing height of adjustment template support frame can the demand of the different process height of effective control subway station roof, need not change bearing structure, consequently can shorten construction period, practices thrift construction cost. The adjusting device can realize certain angle deflection between the internal thread lifting rod and the template supporting plate, and can adapt to roof construction with different slope transition fit.
Description
Technical Field
The utility model relates to a subway station builds the relevant technical field, concretely relates to formwork support frame with adjustable new and old underground works slope roof.
Background
With the advance of urbanization process in China, the construction of underground space in cities develops rapidly, and usually, the transfer condition of a plurality of subway lines occurs, so that the existing subways need to be changed and expanded. When supporting the subway roof, generally adopt the cantilever to support, install a cantilever on the side wall promptly, set up the U-shaped support frame on the cantilever, but this kind of fixed needs intensity height, the stable structure of support performance, when expanding along length direction, this kind of cantilever structure sometimes can not fully satisfy the development of subway station roof.
In the construction, the conventional top formwork supports and generally adopts and detains bowl scaffold (full hall frame) to carry out the auxiliary stay construction, because detain bowl scaffold area big and need a great deal of bracing piece, in subway station transformation, in order not to influence the stream of people and adapt to narrow and small environment (generally the construction height is about 4.5 m), it is very necessary to design a structure that can effectively support alone to the roof.
CN109958063A discloses a support frame erection method, relates to the technical field of building construction, and mainly solves the problem of unstable erection of the support frame, and comprises the following steps: s1, erecting full framing after the first concrete pouring of the pier stud; s2, erecting a bracket; s3, lofting out the support setting range before setting; s4, arranging a vertical and horizontal floor sweeping rod at the bottom of the bracket; s5, an adjustable screw is arranged at the top end of the upright rod; s6, arranging a wall connecting piece; s7, arranging vertical diagonal braces at the periphery, inside and in the transverse direction of the frame body by the template support frame; s8, arranging a horizontal rod arrangement layer and a vertical horizontal diagonal brace on the top layer of the frame body by the template support frame; s9, the supporting frame adopts a steel pipe fastener cross brace as an inclined supporting rod; s10, hanging and covering the dense mesh net along the inner side of the outermost row of stand frames of the support frame; the utility model operation method is simple, and the support frame is set up firmly for the construction progress, and the security performance is high, avoids in the work progress workman be injured.
CN 108396656A discloses bridge formwork support frame, the on-line screen storage device comprises a base, the fixed sleeve that is equipped with in top of base, telescopic inside is equipped with foot-operated hydraulic jack, foot-operated hydraulic jack's footboard fixed mounting is at base top avris, foot-operated hydraulic jack's flexible end and the bottom fixed connection of bracing piece, the top fixed mounting of bracing piece has self-locking mechanism, the fixed second pivot that is equipped with in top of bracing piece, the top both sides of bracing piece are fixed to be seted up flutedly, the bracing piece passes through the second pivot and rotates with the one end of two telescopic links to be connected. This scheme passes through sleeve internally mounted pedal type hydraulic jack, passes through hydraulic pressure case fixed connection with the base footboard, can freely height-adjusting, and the auto-lock structure of bracing piece top installation can be for a long time to the fixed of backup pad, prevents to warp, and the fixed connecting block that is equipped with of sleeve outer wall makes things convenient for the connection between the bracing piece. The structure of patent CN 108396656a is not suitable for operation in a narrow space, because the base, the sleeve, and the pedal hydraulic jack member are assembled integrally, and as a supporting structure of the bridge formwork, the structure needs to meet the self-weight requirement of the bridge formwork and has a certain adjusting capability; however, for the transformation of new and old subway stations, the construction area is inside the old subway station, a well-built structure is already arranged in the subway station, and the ground of the subway station is often damaged by the structure with the excessive self weight. The utility model discloses the technical point that plans to consider lies in designing a light integration adjustable structure, and this kind of structure generally need not carry out the load to the dead weight of station template, is a construction auxiliary stay platform, and what its main consideration was gone on when constructing to station roof structure supports the regulation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the construction method of cantilever support or set up full hall support is adopted to current subway station roof construction technique more, it exists to destroy the subway station, the die carrier sets up loaded down with trivial details and can not fully satisfy the subway station space narrow and small to and need satisfy the bearing structure design that the lightweight construction was gone on in the roof construction department at new and old subway station, this structure can effectively reduce the bearing structure construction and influence existing structure, can realize the effective support in the narrow and small space of subway station. This structure can be to slope roof construction time, and the angle of adjustment template is fit for the roof transition cooperation construction of new and old subway station co-altitude not, and this support frame is fit for supporting horizontal roof structure's transition cooperation construction, concrete height-adjustable, convenient operation characteristics.
The utility model discloses a technical scheme be a formwork support frame with adjustable new and old underground works slope roof, including formwork support plate 1, adjustable to bracing piece fixing base 3, adjustable to bracing piece 5, ratchet stopper 6, internal thread lifter 7, drive double-screw bolt 8, protection steel bushing 9, driven bevel gear 11, drive bevel gear 13 and fixed bolster 15.
The formwork support plate 1 is a main body support structure during construction of a subway station roof, the bottoms of two ends of the formwork support plate 1 are respectively provided with an adjustable direction support rod fixing seat 3, and one ends of two adjustable direction support rods 5 are respectively connected with the adjustable direction support rod fixing seats 3 through hinges I2 and II 4; the other ends of the two direction-adjustable support rods 5 are fixed on buckles which are clamped on the ratchet limiter 6; the ratchet limiter 6 is fixed on the outer side of the internal thread lifting rod 7.
The middle of the bottom of the template supporting plate 1 is hinged with the internal thread lifting rod 7 through a pin shaft, and a triangular supporting structure is formed among the template supporting plate 1, the direction-adjustable supporting rod 5 and the internal thread lifting rod 7; the internal thread lifting rod 7 and the driving stud 8 are assembled together in a thread fit way; the driving stud 8 is arranged inside the protective steel sleeve 9, and the bottom of the driving stud 8 is connected with the central shaft of the driven bevel gear 11; the driven bevel gear 11 is engaged with the drive bevel gear 13, and the axis intersection angle between the driven bevel gear 11 and the drive bevel gear 13 is 90 degrees. The protective steel sleeve 9 is placed on the fixing bracket 15.
Further, the central shaft of the driven bevel gear 11 is supported by a first rolling bearing 10, and the central shaft of the drive bevel gear 13 is supported by a second rolling bearing 14.
Further, the formwork support plate 1 is an aluminum plate or a steel plate.
Further, the formwork support plate 1 can be deflected to the left and right by a range of 30 ° each.
Further, when subway station roof construction was done and is made U type joint structure, be provided with the cushion on the template backup pad 1.
Further, the drive bevel gear 13 is driven by the handle 12.
Further, the fixing bracket 15 is fixed to the base 16.
Further, the fixing form between the fixing bracket 15 and the base 16 is a bolt connection or a welding connection.
Furthermore, the adjustable structural support frame is placed at the extension joint of a new subway station and an old subway station, the heights of the internal thread lifting rod 7 and the template support plate 1 are adjusted by rotating the handle 12, the handle 12 is locked, and the height of the template support plate 1 is adjusted to be parallel to one side of a top plate of the old subway station; adjusting the deflection angle between the internal thread lifting rod 7 and the template support plate 1, and clamping the two direction-adjustable support rods 5 on the ratchet limiter 6 to serve as reverse supporting force of the template support plate 1; the inclination angle of the template supporting plate 1 is consistent with that of a newly-built subway station top plate, and the top of the template supporting plate 1 is a built inclined template of the newly-built subway station top plate. Binding and fixing a wooden cushion block on the template supporting plate 1 to form a U-shaped joint structure; and the top plate of the new and old concrete is poured by adopting the molded reinforced concrete, steel bars are bound according to the construction requirement, the concrete is poured, and meanwhile, the steel-edge water stop belt is fixed in the molded reinforced concrete structure of the top plate of the new and old concrete.
Compared with the prior art, the utility model discloses a drive bevel gear rotates (is driven by twist grip), thereby the drive driven bevel gear is rotatory, turn into vertical direction rotary motion with horizontal direction rotary motion, it makes the lift of complex internal thread lifter with it to drive the rotation of drive double-screw bolt, the support height of adjustment template support frame, the demand of the different process height of ability effective control subway station roof, need not change bearing structure, consequently, construction period can be shortened, practice thrift construction cost, and can fully satisfy the construction that faces at the new and old transformation in-process of subway narrow and small, the load is great, the frequent condition of load adjustment. The adjusting device can realize certain angle deflection between the internal thread lifting rod and the template supporting plate, and can adapt to roof construction with different slope transition fit.
Drawings
Fig. 1 is a schematic view of an adjustable structural support frame structure of a new underground engineering roof and an old underground engineering roof.
In the figure, 1 is a template support plate; 2 is a hinge; 3 is a direction-adjustable supporting rod fixing seat; 4 is a hinge; 5, a direction-adjustable supporting rod; 6 is a ratchet limiter; 7 is an internal thread lifting rod; 8 is a driving stud; 9 is a protective steel sleeve; 10 is a first rolling bearing; 11 is a driven bevel gear; 12 is a handle; 13 is a driving bevel gear; 14 is a second rolling bearing; 15 is a fixed bracket; and 16 is a base.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
An adjustable template support frame for a new and old underground engineering inclined top plate comprises a template support plate 1, an adjustable direction support rod fixing seat 3, an adjustable direction support rod 5, a ratchet limiter 6, an internal thread lifting rod 7, a driving stud 8, a protective steel sleeve 9, a driven bevel gear 11, a driving bevel gear 13 and a fixing support 15.
The formwork support plate 1 is a main body support structure during construction of a subway station roof, the bottoms of two ends of the formwork support plate 1 are respectively provided with an adjustable direction support rod fixing seat 3, and one ends of two adjustable direction support rods 5 are respectively connected with the adjustable direction support rod fixing seats 3 through hinges I2 and II 4; the other ends of the two direction-adjustable support rods 5 are fixed on buckles which are clamped on the ratchet limiter 6; the ratchet limiter 6 is fixed on the outer side of the internal thread lifting rod 7.
The inner thread lifting rod 7 is hinged with the middle of the bottom of the template supporting plate 1 through a pin shaft, a triangular supporting structure is formed among the template supporting plate 1, the direction-adjustable supporting rod 5 and the inner thread lifting rod 7, and the triangular supporting structure can effectively support the load of a load top plate of a subway station; the internal thread lifting rod 7 and the driving stud 8 are assembled together in a thread fit way; the driving stud 8 is arranged inside the protective steel sleeve 9, and the bottom of the driving stud 8 is connected with the central shaft of the driven bevel gear 11; the driven bevel gear 11 is engaged with the drive bevel gear 13, and the axis intersection angle between the driven bevel gear 11 and the drive bevel gear 13 is 90 degrees. The protective steel sleeve 9 is placed on the fixing bracket 15. This structure adopts a set of intermeshing's bevel gear to carry out the adjustment of vertical direction to drive stud 8, utilizes the bevel gear load great, and the vertical height adjustment of the roof construction of new and old concrete is fully guaranteed to the technological advantage that centering precision requires highly. The ratchet limiter 6 is arranged along the outer side of the internal thread lifting rod 7, can clamp two sides of the triangular supporting structure and prevents the direction-adjustable supporting rod 5 from sliding downwards; the ratchet limiter 6 has a one-way self-locking function, and can stabilize a vertical supporting structure in the transition construction from the horizontal to the inclined of the inclined top plate of the subway station. The ratchet limiter 6 adopts one-way ratchets along the outer side of the internal thread lifting rod 7, the two direction-adjustable supporting rods 5 can be effectively constrained on the one-way ratchets, and the two direction-adjustable supporting rods 5 can move in a one-way mode along the internal thread lifting rod 7.
Further, the central shaft of the driven bevel gear 11 is supported by a first rolling bearing 10, and the central shaft of the drive bevel gear 13 is supported by a second rolling bearing 14.
Further, the formwork support plate 1 is an aluminum plate or a steel plate.
Further, the formwork support plate 1 can deflect left and right within the range of 30 degrees, when the top plate of the subway station is an inclined construction surface, the hinges I2 and the hinges 4 on the two sides of the bottom of the formwork support plate 1 are adjusted, so that the direction of the formwork support plate 1 deflects, the deflection angle is not too large, the unstable gravity center of the construction process is prevented, and the construction safety is prevented from being influenced.
Further, when a subway station top plate is constructed to be a U-shaped joint structure, a cushion block is arranged on the template supporting plate 1; the cushion can select to be wooden cushion for the support height of adjustment template backup pad 1, and then adopts the fine aggregate concrete to backfill in the corner of U type joint structure and form the bias section.
Further, the drive bevel gear 13 is driven by the handle 12, increasing convenience and operability of construction.
Further, the fixing bracket 15 is fixed on a base 16, which effectively supports the whole structure.
Further, the fixing form between the fixing bracket 15 and the base 16 is a bolt connection or a welding connection. And the stability of the structure is ensured by adopting a fastening connection mode.
The technical advantages of the technology are described in the following with specific embodiments of the new and old subway stations for carrying out the construction.
In the construction of a roof of a new and old underground engineering, the construction process mainly comprises the steps of reinforced concrete pouring and fixed installation of a waterproof lap joint structure; the waterproof adhesive tape mainly comprises a steel-edged water stop, fine aggregate concrete, a double-sided butyl adhesive tape, a polymer reinforced composite coiled material and an isolating layer.
The adjustable structural support frame is placed at the extension joint of a new subway station and an old subway station, the heights of the internal thread lifting rod 7 and the template support plate 1 are adjusted by rotating the handle 12, the handle 12 is locked, and the height of the template support plate 1 is adjusted to be parallel to one side of a top plate of the old subway station; adjusting the deflection angle between the internal thread lifting rod 7 and the template support plate 1, and clamping the two direction-adjustable support rods 5 on the ratchet limiter 6 to serve as reverse supporting force of the template support plate 1; the inclination angle of the template support plate 1 is consistent with that of the newly-built subway station roof (for example, 15 degrees), and the top of the template support plate 1 is a built inclined template of the newly-built subway station roof. Binding and fixing a wooden cushion block on the template supporting plate 1 to form a U-shaped joint structure; and C40 molded reinforced concrete is poured on the top plate of the new and old concrete, steel bars are bound according to construction requirements, C40 concrete is poured, and meanwhile, the steel-edge water stop belt is fixed in the C40 molded reinforced concrete structure of the top plate of the new and old concrete.
Arrange into the U type with two-sided butyl adhesive tape, polymer enhancement composite coiled material and isolation layer and connect the racking structure, adopt the fine aggregate concrete to backfill in the corner that the U type connects the racking structure and form the oblique section.
The outside that compound coiled material was strengthened to the polymer is equipped with the protective layer, and the isolation layer setting is between concrete protection layer and waterproofing membrane.
The polymer reinforced composite coiled material adopts a double-layer structure, and the double-sided butyl adhesive tape is arranged between the double-layer polymer reinforced composite coiled materials.
The concrete protective layer is a fine stone concrete layer with the thickness not less than 70 mm.
The isolating layer is made of petroleum asphalt felt, crude rubber felt, soft polyvinyl chloride coiled material, waterproof cold glue material, waterproof coating and oil-seepage-proof cement glass fiber cloth.
As one skilled in the art will appreciate, the dimensions of the various features shown in the drawings of the present invention are not drawn to scale for ease of illustration. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values, as well as different choices.
Claims (7)
1. The utility model provides a template support frame with adjustable new and old underground works slope roof which characterized in that: the template supporting plate (1) is a main body supporting structure during construction of a top plate of a subway station, the bottoms of two ends of the template supporting plate (1) are respectively provided with a direction-adjustable supporting rod fixing seat (3), and one ends of two direction-adjustable supporting rods (5) are respectively connected with the direction-adjustable supporting rod fixing seats (3) through hinges I (2) and II (4); the other ends of the two direction-adjustable supporting rods (5) are fixed on buckles which are clamped on the ratchet limiter (6); the ratchet limiter (6) is fixed on the outer side of the internal thread lifting rod (7);
the inner thread lifting rod (7) is hinged with the middle of the bottom of the template supporting plate (1) through a pin shaft, and a triangular supporting structure is formed among the template supporting plate (1), the direction-adjustable supporting rod (5) and the inner thread lifting rod (7); the internal thread lifting rod (7) and the driving stud (8) are assembled together in a threaded fit manner; the driving stud (8) is arranged in the protective steel sleeve (9), and the bottom of the driving stud (8) is connected with the central shaft of the driven bevel gear (11); the driven bevel gear (11) is meshed with the driving bevel gear (13), and the intersection angle of the axes of the driven bevel gear (11) and the driving bevel gear (13) is 90 degrees; the protective steel sleeve (9) is arranged on the fixed bracket (15);
the central shaft of the driven bevel gear (11) is supported by a first rolling bearing (10), and the central shaft of the driving bevel gear (13) is supported by a second rolling bearing (14).
2. The adjustable formwork support frame for the inclined top plate of the old and new underground engineering as claimed in claim 1, wherein: the template support plate (1) is an aluminum plate or a steel plate.
3. The adjustable formwork support frame for the inclined top plate of the old and new underground engineering as claimed in claim 1, wherein: the formwork support plates (1) can be pivoted by 30 DEG to the left and right.
4. The adjustable formwork support frame for the inclined top plate of the old and new underground engineering as claimed in claim 1, wherein: when subway station roof construction U type grafting structure, be provided with the cushion on template backup pad (1).
5. The adjustable formwork support frame for the inclined top plate of the old and new underground engineering as claimed in claim 1, wherein: the driving bevel gear (13) is driven by a handle (12).
6. The adjustable formwork support frame for the inclined top plate of the old and new underground engineering as claimed in claim 1, wherein: the fixed support (15) is fixed on the base (16).
7. The adjustable formwork support frame for the inclined top plate of the old and new underground engineering as claimed in claim 1, wherein: the fixed support (15) and the base (16) are fixedly connected in a bolt connection or welding mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020734067.9U CN212835495U (en) | 2020-05-07 | 2020-05-07 | Adjustable formwork support frame for inclined top plate of new and old underground engineering |
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| CN202020734067.9U CN212835495U (en) | 2020-05-07 | 2020-05-07 | Adjustable formwork support frame for inclined top plate of new and old underground engineering |
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| CN212835495U true CN212835495U (en) | 2021-03-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677001A (en) * | 2020-05-07 | 2020-09-18 | 中铁十八局集团有限公司 | Adjustable structure support frame for new and old underground engineering roof |
| CN111677002A (en) * | 2020-05-07 | 2020-09-18 | 中铁十八局集团有限公司 | Adjustable formwork support frame for inclined top plate of new and old underground engineering |
| CN113216399A (en) * | 2021-05-25 | 2021-08-06 | 中国建筑第二工程局有限公司 | Large-span steel reinforced concrete structure and construction method thereof |
-
2020
- 2020-05-07 CN CN202020734067.9U patent/CN212835495U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677001A (en) * | 2020-05-07 | 2020-09-18 | 中铁十八局集团有限公司 | Adjustable structure support frame for new and old underground engineering roof |
| CN111677002A (en) * | 2020-05-07 | 2020-09-18 | 中铁十八局集团有限公司 | Adjustable formwork support frame for inclined top plate of new and old underground engineering |
| CN113216399A (en) * | 2021-05-25 | 2021-08-06 | 中国建筑第二工程局有限公司 | Large-span steel reinforced concrete structure and construction method thereof |
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