CN216616802U - Three-layer hydraulic self-lifting construction platform for vertical shaft - Google Patents
Three-layer hydraulic self-lifting construction platform for vertical shaft Download PDFInfo
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- CN216616802U CN216616802U CN202220972452.6U CN202220972452U CN216616802U CN 216616802 U CN216616802 U CN 216616802U CN 202220972452 U CN202220972452 U CN 202220972452U CN 216616802 U CN216616802 U CN 216616802U
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Abstract
The utility model relates to the technical field of scaffolds with movable platforms, and discloses a three-layer hydraulic self-elevating construction platform for a vertical shaft, which is used for pouring a secondary lining wall of the vertical shaft from bottom to top; the binding platform, the cloth platform and the plastering platform are sequentially arranged from top to bottom; the edge of the cloth platform is provided with lifting frames fixedly connected with the cloth platform at intervals around the cloth platform, a creeping formwork power device is arranged on the lifting frames, and a template sleeve of the secondary lining wall is sleeved on the periphery of the lifting frames and fixedly connected with the lifting frames. According to the utility model, the binding platform for binding the reinforcement cage is additionally arranged above the distribution platform for installing the template and pouring concrete, and the plastering platform for plastering and maintaining the concrete is additionally arranged below the distribution platform, so that when one section of concrete is poured, the concrete maintenance of the lower section and the reinforcement cage binding of the upper section can be completed during waiting for the concrete to be solidified, thereby obviously shortening the construction period.
Description
Technical Field
The utility model relates to the technical field of scaffolds with movable platforms, in particular to a three-layer hydraulic self-lifting construction platform for a vertical shaft.
Background
The secondary lining wall of shaft, the section of thick bamboo wall and the wall of a well of elevartor shaft that are similar to the chimney all are very little and high special reinforced concrete structure of cross section, it is neither convenient nor scientific to take the scaffold frame to carry out the lining construction, and the support of template is torn open the construction and is inconvenient to use perpendicular transportation equipment, and conventional construction means has the difficulty in the shaft construction.
The wall of the chimney and the wall of the elevator shaft are constructed by using a creeping formwork construction process gradually at present, and the creeping formwork construction process is also used gradually in the secondary lining wall of the elevator shaft. However, the existing creeping formwork construction device can only be generally used for pouring concrete, and the construction of a reinforced concrete structure requires binding a reinforcement cage and maintaining the concrete besides pouring the concrete, which requires additional construction period and corresponding construction platform.
The applicant finds that as the creeping formwork construction process generally depends on the load bearing of the poured concrete, a long waiting time is needed for each section of concrete pouring, and if a construction platform close to the formwork of the creeping formwork is provided, a reinforcement cage is bound and the concrete is cured in the waiting time, so that the construction period can be obviously shortened.
SUMMERY OF THE UTILITY MODEL
The utility model provides a three-layer hydraulic self-lifting construction platform for a vertical shaft.
The technical problem to be solved is that: the existing creeping formwork construction device can only be generally used for pouring concrete.
In order to solve the technical problems, the utility model adopts the following technical scheme: a three-layer hydraulic self-elevating construction platform for a vertical shaft is used for pouring a secondary lining wall of the vertical shaft from bottom to top; the concrete plastering device comprises three main working platforms which are horizontally arranged, vertically overlapped, fixedly connected into a whole and used for bearing construction personnel to carry out operation, wherein the main working platforms sequentially comprise a binding platform used for binding steel bars, a distributing platform used for pouring concrete and a plastering platform used for plastering and maintaining concrete from top to bottom; a ladder stand is arranged between the adjacent main working platforms, and a guardrail and a safety net are arranged at the edge of the material distribution platform;
the device comprises a cloth platform, a lifting frame fixedly connected with the cloth platform, a climbing formwork power device and a support rod, wherein the edge of the cloth platform is arranged around the cloth platform at intervals, the lifting frame is provided with the climbing formwork power device, the climbing formwork power device comprises a penetrating jack which is arranged on the lifting frame in a one-to-one correspondence manner with the lifting frame and fixedly connected with the lifting frame, and the support rod which is in a one-to-one correspondence manner with the penetrating jack and vertically penetrates through the penetrating jack, the support rod is formed by splicing and fixedly connecting a plurality of subsections from bottom to top one by one, and the lower part of the support rod is embedded in a poured well wall;
and the template of the secondary lining wall is sleeved on the periphery of the lifting frame and is fixedly connected with the lifting frame.
Furthermore, the supporting rods are screwed steel pipes, the length of each section of steel pipe is not less than two times of the height of the template, and the joints of the steel pipes on the two adjacent supporting rods are staggered up and down.
Furthermore, the hoisting frame comprises a cross rod extending from the support rod to the cloth platform and used for bearing the center-penetrating jack, and a vertical rod extending from one end of the cross rod close to the cloth platform vertically and downwards and used for connecting the template, wherein the cross rod is fixedly connected with the vertical rod.
Furthermore, the binding platform is erected on the material distribution platform through vertical steel pipes arranged at intervals along the circumferential direction of the material distribution platform, each vertical steel pipe extends upwards to exceed the upper surface of the binding platform, and the parts, located above the binding platform, of the vertical steel pipes are connected through horizontal steel pipes to form a multi-layer frame for classified placement of the steel bars; the plastering platform is hung below the cloth platform through hanging columns.
Furthermore, a position higher than the center-penetrating jack on the support rod is detachably fixed with a stopper for marking the terminal point of each extension of the center-penetrating jack, a laser leveling instrument for ensuring that the stopper is at the same height is arranged on the material distribution platform, and a control station of the center-penetrating jack is arranged on the material distribution platform.
Further, a central cylinder fixedly connected with the cloth platform is vertically arranged in the center of the bottom of the cloth platform, the central cylinder is an elastic cylinder capable of resisting centripetal pressure and centrifugal tensile force in the horizontal direction, top die frame beams radially arranged by taking the central cylinder as the center are arranged at the top of the side face of the central cylinder, and the top die frame beams are supported below the cloth platform, are in one-to-one correspondence with lifting frames, are fixedly connected with the side face of the central cylinder at one end, and are fixedly connected with the corresponding lifting frames at the other end.
Furthermore, the bottom of the central cylinder is also provided with tensioning connecting pieces which are radially arranged by taking the central cylinder as the center, are used for adjusting the verticality of the central cylinder and avoid the middle part of the distributing platform from being downwarped, the tensioning connecting pieces are telescopic rods or ropes with adjustable length, two ends of each tensioning connecting piece are respectively connected with the bottom of the side surface of the lifting frame and the bottom of the side surface of the central cylinder, and each lifting frame is at least connected with one tensioning connecting piece.
Furthermore, a plumb bob with a downward tip is hung in the central cylinder, a target plate fixedly connected with the central cylinder is arranged at a position below the plumb bob in the central cylinder, and when the central cylinder is in a vertical state, the tip of the plumb bob vertically points downwards to a target center on the target plate.
Compared with the prior art, the three-layer hydraulic self-lifting construction platform for the vertical shaft has the following beneficial effects:
according to the utility model, the binding platform for binding the reinforcement cage is additionally arranged above the distribution platform for installing the template and pouring concrete, and the plastering platform for plastering and maintaining the concrete is additionally arranged below the distribution platform for installing the template and pouring the concrete, so that when one section of concrete is poured, the concrete maintenance of the lower section and the reinforcement cage binding of the upper section can be completed during waiting for the concrete to be solidified, thereby obviously shortening the construction period;
according to the utility model, after the tensioning connecting piece is tightened, prestress exists in the central cylinder, so that the template can be effectively propped, a mold expansion is avoided, the problem that the formwork support is not stable enough due to the fact that the vertical shaft cannot use the counter-pulling screw rod is solved, and meanwhile, the tensioning connecting piece can also play a role in adjusting the verticality of the central cylinder.
Drawings
Fig. 1 is a schematic structural view of a three-story hydraulic jack-up construction platform for a shaft according to the present invention; the lines of the central cylinder in the figure are thickened for easy identification;
the method comprises the following steps of 11-binding platform, 12-distributing platform, 13-plastering platform, 21-lifting frame, 22-punching jack, 23-supporting rod, 24-limiting device, 31-template, 32-central cylinder, 33-top template frame beam, 34-tensioning connecting piece and 35-plumb bob.
Detailed Description
As shown in fig. 1, a three-layer hydraulic jack-up construction platform for a shaft is used for casting a secondary lining wall of the shaft from bottom to top; the main working platform is sequentially provided with a binding platform 11 for binding steel bars, a distributing platform 12 for pouring concrete and a plastering platform 13 for plastering and maintaining concrete from top to bottom; the platforms are arranged from top to bottom according to the construction sequence, so that the construction can be carried out like a production line during construction.
The distributing platform 12 is provided with a concrete distributing machine, concrete is supplied through a hard concrete pump pipe 42 which is spliced section by section from bottom to top, and meanwhile, a water pipe can be attached to the pump pipe to facilitate concrete maintenance.
A lifting cage used for conveying construction materials and providing for workers to go up and down the main working platform is arranged in the position, higher than the creeping formwork construction system, of the shaft, and a crawling ladder is arranged between every two adjacent main working platforms. The edge of the material distribution platform 12 is provided with a guardrail and a safety net, and the other two main working platforms do not need to be provided with the guardrail and the safety net, because the edge is completely sealed by the template 31, nothing can fall off, and the template is not removed in the construction process. No guardrail or safety net is arranged, so that no problem exists in safety, and convenience is brought to the movement of constructors.
The edge of the material distribution platform 12 is provided with lifting frames 21 fixedly connected with the material distribution platform 12 at intervals around the material distribution platform 12, a climbing formwork power device is arranged on the lifting frames 21 and comprises penetrating jacks 22 which are arranged on the lifting frames 21 in a one-to-one correspondence manner and fixedly connected with the lifting frames 21, and supporting rods 23 which are arranged in the penetrating jacks 22 in a one-to-one correspondence manner and vertically penetrated in the penetrating jacks 22, the supporting rods 23 are formed by splicing and fixedly connecting a plurality of subsections section by section from bottom to top, and the lower parts of the supporting rods 23 are embedded in a poured well wall;
the climbing formwork power device formed by the support rod 23 and the penetrating jack 22 does not depend on the bearing of the lining concrete, and the concrete only ensures the stability of the support rod 23, so that the climbing formwork can climb after the initial setting of the concrete. In this embodiment, the penetrating jack 22 is a GYD-60 type ball penetrating hydraulic jack, the supporting rod 23 is a phi 48 × 3.5mm steel pipe which is purchased in cooperation with the penetrating jack 22, and the two form a matched creeping formwork power device which can be purchased directly in a set. Two adjacent steel pipes are in threaded connection, the lengths of the steel pipes are 4m, 4.5m, 5m and 6m respectively, the height of the formwork 31 is 1.5 m, and the shortest steel pipe is more than twice of the height of the formwork 31, so that each steel pipe can stretch over two sections of concrete in different ages. The joint height positions of the support rods 23 are staggered as much as possible. The control station is a YKD-36 type hydraulic control station.
The template 31 of the secondary lining wall is sleeved on the periphery of the lifting frame 21 and is fixedly connected with the lifting frame 21.
The lifting frame 21 comprises a cross rod extending from the support rod 23 to the material distribution platform 12 in a horizontal direction and used for bearing the penetrating jack 22, and a vertical rod extending from one end of the cross rod close to the material distribution platform 12 in a vertical and downward direction and used for connecting the template 31, wherein the cross rod is fixedly connected with the vertical rod. The transverse rods and the vertical rods are all section steel, and channel steel or square steel pipes can be selected.
The binding platform 11 is erected on the material distribution platform 12 through vertical steel pipes arranged at intervals along the circumferential direction of the material distribution platform 12, each vertical steel pipe extends upwards to exceed the upper surface of the binding platform 11, and the parts, located above the binding platform 11, of the vertical steel pipes are connected through horizontal steel pipes to form a multi-layer frame for classified placement of reinforcing steel bars; the plastering platform 13 is hung below the distributing platform 12 through a hanging column. The plastering platform 13 needs to be maintained by concrete, more free space can be provided by the hanging columns, and the water pipe is conveniently pulled to rotate.
A position higher than the through jack 22 on the supporting rod 23 is detachably fixed with a stopper 24 for marking the end point of each extension of the through jack 22, a laser swinger for ensuring that the stoppers 24 are at the same height is arranged on the material distribution platform 12, and a control station of the through jack 22 is arranged on the material distribution platform 12. When the climbing formwork climbs each time, the penetrating jack 22 needs to be extended and shortened for several times, and when the penetrating jack 22 is extended, the whole climbing formwork construction system is driven to climb upwards for a small section. Before the center-penetrating jack 22 extends, the position of the stopper 24 is determined by a laser swinger, and after the stopper 24 is installed, the stopper is extended. The stopper 24 here is a hoop that is hooped on the support bar 23.
A central cylinder 32 fixedly connected with the cloth platform 12 is vertically arranged at the center of the bottom of the cloth platform 12, the central cylinder 32 is an elastic cylinder capable of resisting centripetal pressure and centrifugal tension in the horizontal direction, top die frame beams 33 radially arranged by taking the central cylinder 32 as the center are arranged at the top of the side surface of the central cylinder 32, and the top die frame beams 33 are supported below the cloth platform 12 and are in one-to-one correspondence with the lifting frames 21, one ends of the top die frame beams are fixedly connected with the side surface of the central cylinder 32, and the other ends of the top die frame beams are fixedly connected with the corresponding lifting frames 21.
The bottom of the central cylinder 32 is further provided with tensioning connecting pieces 34 which are radially arranged by taking the central cylinder 32 as a center and used for adjusting the verticality of the central cylinder 32 and avoiding the middle part of the distributing platform 12 from being warped downwards, the tensioning connecting pieces 34 are telescopic rods or length-adjustable ropes, two ends of each tensioning connecting piece 34 are respectively connected with the bottom of the side surface of each lifting frame 21 and the bottom of the side surface of the central cylinder 32, and each lifting frame 21 is connected with at least one tensioning connecting piece 34.
Here the upper half of the central tube 32 is pressed inwards and the lower half is pulled outwards, so that the template 31 is forced outwards while also avoiding sagging of the middle of the material platform 12. The central part of the distributing platform 12 is bent downwards mainly because the lower part needs to hang the plastering platform 13, and the upper part is pressed with the rotary distributing machine 41. The central cylinder 32 can be a cylindrical cage welded by steel pipes and section steel, the upper end and the lower end of the central cylinder are provided with section steel frames, and the middle of the central cylinder is provided with vertical steel pipes which are arranged at intervals along the circumference of the cylinder wall. The top formwork frame beam 33 is a bailey truss beam, and a formwork 31 position adjuster for adjusting the distance between the formwork 31 and the shaft wall is arranged between the formwork 31 and the lifting frame 21. The template 31 position adjuster may be a spacer or a bolt perpendicular to the template 31.
A plumb 35 with a downward tip is hung in the central cylinder 32, a target plate fixedly connected with the central cylinder 32 is arranged at a position below the plumb 35 in the central cylinder 32, and only when the central cylinder 32 is in a vertical state, the tip of the plumb 35 vertically points to a target center on the target plate downwards. This makes it possible to determine whether the center cylinder 32 is tilted.
The use method of the three-layer hydraulic self-lifting construction platform for the vertical shaft comprises the following steps:
the method comprises the following steps: dividing the shaft lining into a plurality of construction sections, recording the construction section at the bottommost as a first section, gradually increasing the labels of the construction sections from bottom to top, and completing the first section; when the first section is poured, the segmented top at the lowest end of the support rod 23 is supported at the bottom of the vertical shaft and is half-buried in the first section;
step two: assembling the construction platform at the bottom of the vertical shaft;
step three: recording the construction section right opposite to the template 31 as an Nth section, finishing plastering and curing the Nth-1 section, pouring concrete of the N sections, and binding a reinforcement cage of the (N + 1) th section; when concrete is poured, the bottom of the side surface of the template 31 is attached to the N-1 section;
step four: after the concrete poured in the third step is initially set, the construction platform climbs for a section; after climbing is completed, the position of the central cylinder 32 is adjusted to be coaxial with the vertical shaft again;
step five: and circularly performing the third step and the fourth step until the construction of the whole shaft lining is completed.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. A three-layer hydraulic self-elevating construction platform for a vertical shaft is used for pouring a secondary lining wall of the vertical shaft from bottom to top; the method is characterized in that: the concrete plastering machine comprises three main working platforms which are horizontally arranged, vertically overlapped, fixedly connected into a whole and used for bearing construction personnel to operate, wherein the main working platforms sequentially comprise a binding platform (11) used for binding steel bars, a distributing platform (12) used for pouring concrete and a plastering platform (13) used for plastering and maintaining concrete from top to bottom; a ladder stand is arranged between the adjacent main working platforms, and a guardrail and a safety net are arranged at the edge of the material distribution platform (12);
the device comprises a cloth platform (12), lifting frames (21) fixedly connected with the cloth platform (12) are arranged on the edge of the cloth platform (12) at intervals around the cloth platform (12), a climbing formwork power device is arranged on the lifting frames (21), the climbing formwork power device comprises penetrating jacks (22) which are arranged on the lifting frames (21) in a one-to-one correspondence manner and are fixedly connected with the lifting frames (21), and supporting rods (23) which are arranged in the penetrating jacks (22) in a one-to-one correspondence manner and vertically penetrate through the penetrating jacks (22), the supporting rods (23) are formed by splicing and fixedly connecting a plurality of subsections from bottom to top one by one, and the lower parts of the supporting rods (23) are embedded in a poured well wall;
and the template (31) of the secondary lining wall is sleeved on the periphery of the lifting frame (21) and is fixedly connected with the lifting frame (21).
2. The three-layer hydraulic jack-up construction platform for the vertical shaft according to claim 1, wherein: the support rods (23) are screwed steel pipes, the length of each section of steel pipe is not less than two times of the height of the template (31), and the steel pipe joints on two adjacent support rods (23) are staggered up and down.
3. The three-layer hydraulic jack-up construction platform for the vertical shaft according to claim 1, wherein: the hoisting frame (21) comprises a cross rod extending from the support rod (23) to the cloth platform (12) and used for bearing the piercing jack (22), and a vertical rod extending downwards from one end of the cross rod close to the cloth platform (12) and used for connecting the template (31), and the cross rod is fixedly connected with the vertical rod.
4. The three-layer hydraulic jack-up construction platform for the vertical shaft according to claim 1, wherein: the binding platform (11) is erected on the material distribution platform (12) through vertical steel pipes arranged at intervals along the circumferential direction of the material distribution platform (12), each vertical steel pipe extends upwards to exceed the upper surface of the binding platform (11), and the parts, located above the binding platform (11), of the vertical steel pipes are connected through horizontal steel pipes to form a multi-layer frame for classified placement of the steel bars; the plastering platform (13) is hung below the distributing platform (12) through a hanging column.
5. The three-layer hydraulic jack-up construction platform for the vertical shaft according to claim 1, wherein: a position higher than the center-penetrating jack (22) on the supporting rod (23) is detachably fixed with a stopper (24) for marking the end point of each extension of the center-penetrating jack (22), a laser swinger for ensuring that the stopper (24) is positioned at the same height is arranged on the material distribution platform (12), and a control station of the center-penetrating jack (22) is arranged on the material distribution platform (12).
6. The three-layer hydraulic jack-up construction platform for the vertical shaft according to claim 1, wherein: the cloth platform (12) bottom central authorities vertically be provided with cloth platform (12) fixed connection's a center section of thick bamboo (32), a center section of thick bamboo (32) is the elastic cylinder that can resist centripetal pressure and centrifugal pulling force in the horizontal direction, a center section of thick bamboo (32) side top is provided with and uses a center section of thick bamboo (32) to be radial top mould frame roof beam (33) of arranging as the center, top mould frame roof beam (33) shore in cloth platform (12) below, with hoisting frame (21) one-to-one, one end and center section of thick bamboo (32) side fixed connection, and the other end and corresponding hoisting frame (21) fixed connection.
7. The three-layer hydraulic jack-up construction platform for the vertical shaft according to claim 6, wherein: the cloth platform is characterized in that tensioning connecting pieces (34) which are radially arranged by taking the central cylinder (32) as the center and used for adjusting the verticality of the central cylinder (32) and avoiding the middle part of the cloth platform (12) from being downwarped are further arranged at the bottom of the central cylinder (32), each tensioning connecting piece (34) is a telescopic rod or a rope with adjustable length, two ends of each tensioning connecting piece (34) are respectively connected with the bottom of the side surface of the lifting frame (21) and the bottom of the side surface of the central cylinder (32), and each lifting frame (21) is at least connected with one tensioning connecting piece (34).
8. The three-deck hydraulic jack-up construction platform for a shaft of claim 7, wherein: a plumb bob (35) with a downward pointed part is hung in the central cylinder (32), a target plate fixedly connected with the central cylinder (32) is arranged at the position below the plumb bob (35) in the central cylinder (32), and when the central cylinder (32) is in a vertical state, the pointed part of the plumb bob (35) vertically points to the target on the target plate downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220972452.6U CN216616802U (en) | 2022-04-25 | 2022-04-25 | Three-layer hydraulic self-lifting construction platform for vertical shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220972452.6U CN216616802U (en) | 2022-04-25 | 2022-04-25 | Three-layer hydraulic self-lifting construction platform for vertical shaft |
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| CN216616802U true CN216616802U (en) | 2022-05-27 |
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| CN202220972452.6U Active CN216616802U (en) | 2022-04-25 | 2022-04-25 | Three-layer hydraulic self-lifting construction platform for vertical shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116163506A (en) * | 2023-04-18 | 2023-05-26 | 山西建设投资集团有限公司 | Movable construction operation platform for removing chimney |
-
2022
- 2022-04-25 CN CN202220972452.6U patent/CN216616802U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116163506A (en) * | 2023-04-18 | 2023-05-26 | 山西建设投资集团有限公司 | Movable construction operation platform for removing chimney |
| CN116163506B (en) * | 2023-04-18 | 2023-06-30 | 山西建设投资集团有限公司 | Movable construction operation platform for removing chimney |
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