WO2024077879A1 - Climbing type steel platform construction device and method for outward-inclined wall - Google Patents

Abstract

The present invention belongs to the technical field of building construction, and particularly relates to a climbing type steel platform construction device and method for an outward-inclined wall, aiming to solve the problem that in conventional steel platform construction modes, the coordination between formwork overturning and steel platform outward inclination or other conversion construction systems needs to be considered. The device comprises a steel platform and a scaffolding system, the steel platform comprising an outer-side steel platform system and an inner-side steel platform system, and a rail base being arranged on a top beam of the supplemented steel platform system. The scaffolding system comprises a movable implementation scaffold and a temporary construction scaffold. The movable implementation scaffold comprises a scaffold body, a sliding bottom roller, anti-overturning snapping seats and limiting fixing blocks. The anti-overturning snapping seats are snapped onto the rail base along the length direction of a rail, the implementation scaffold body is fixedly connected to the sliding bottom roller by means of a connector, and the limiting fixing blocks are arranged on the front side and the rear side of the sliding bottom roller in an inverted capping mode and are fixed by means of bolts. Just by a single disassembly and supplementation of the steel platform, pouring construction of an upper outward-inclined wall section and a straight wall section can be completed quickly and safely.

Description

A construction device and method for an inclined wall outward-turning climbing steel platform Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a construction device and method for an inclined wall outward-turning climbing steel platform.

Background technique

Most super high-rise buildings require a core tube to improve the overall tower's ability to resist lateral forces. When the core tube wall needs to be turned outward at a large angle based on structural design requirements, that is, when the inclined wall is turned outward, the following main problems will be encountered according to the traditional climbing steel platform construction method:

First, in the traditional construction method of combining external climbing formwork scaffolding with steel platform splitting, not only is the coordination difficult and the safety extremely low, but it is also difficult to ensure the overturning of the outer formwork at the external formwork.

The second is to gradually add steel platforms. This method requires continuous expansion of steel platforms. Due to high-altitude construction, the working conditions are complex and greatly affect the construction period. Especially under the condition of large-angle outward flipping of the core tube, it is difficult to solve the overturning force of the outer template at the outward flipping formwork on the steel platform using the two types of traditional inclined wall deformation construction methods.

Third, the construction of the inclined wall of the core tube will greatly affect the traditional steel platform climbing construction. First, the climbing system cannot be established at the main stress point of the inclined wall. Even if the composition of the steel platform is gradually changed, the other main stress systems of the core tube will not change, and the original climbing system cannot be used. In addition, there is a problem of overturning stability of the steel platform on this side of the inclined wall.

Therefore, how to provide a construction device and method for a sloping wall outward-flipping climbing steel platform is a technical problem that technical personnel in this field urgently need to solve.

The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information is the prior art known to ordinary technicians in the field.

Summary of the invention

With regard to the traditional construction method of combining external climbing formwork scaffolding with steel platform splitting, which cannot solve the problem of overturning of the outer formwork at the outward-turning formwork of the core tube with a large inclination angle inclined wall, the present invention provides a construction device and method of an inclined wall outward-turning climbing steel platform. The steel platform formwork system is first fixed in the straight wall of the core tube at a certain height below the bottom end of the inclined wall to provide a construction platform for setting up scaffolding for the outward turn of the upper inclined wall. Then, according to the upper structure, the original steel platform formwork system is further split and supplemented and utilized. The upper inclined wall and straight wall casting construction can be completed by one-time splitting and supplementing the steel platform construction. The construction is fast and safe, and there will be no falling objects from high altitude.

In order to solve the above technical problems, the present invention includes the following technical solutions:

A construction device for an inclined wall outward-turning climbing steel platform, comprising:

Steel platform, the steel platform includes an outer steel platform system and an inner steel platform system, the steel platform climbs along the core tube shear wall through a climbing system, and a track base is provided on the top beam of the supplemented steel platform system;

A scaffolding system, the scaffolding system includes a movable tool scaffolding and a temporary construction scaffolding, the movable tool scaffolding includes: a tool scaffolding body, a sliding bottom wheel, an anti-overturning holder and a limiting fixing block, the anti-overturning holder is inserted into the track base along the length direction of the track, the tool scaffolding body is fixedly connected to the sliding bottom wheel through a connecting head, and the limiting fixing block is invertedly arranged on the front and rear sides of the sliding bottom wheel and fixed by bolts.

Furthermore, it also includes an adjustable inclined wall casting formwork, which is fixed on the outermost inclined crossbar of the movable tool-type scaffolding, and the adjustable inclined wall casting formwork includes an inner wooden formwork and an outer wooden formwork, a steel pipe back rib, and a tool-type square back rib. The inner wooden formwork and the outer wooden formwork are controlled by a plurality of fixed-distance rigid pads, and are fixed by tension bolts. The outer side of the inner wooden formwork is clamped with a tool-type square back rib by a back rib fixing fixture, and the outer side of the back rib fixing fixture is fixed with a top support plate by a telescopic screw. The top support plate is fixedly connected to the outermost crossbar of the movable tool-type scaffolding by a telescopic screw. By setting a fixed-distance rigid pad, it is only necessary to adjust the position of one side of the template to ensure the spacing between the templates. During construction, the BIM digital technology can be combined to use the telescopic screw to accurately adjust the corresponding points of the template. Moreover, in addition to initially adjusting the template as a whole to a predetermined position, it is also possible to ensure that the deformation of the inclined wall during the casting process is consistent with the design without setting a diagonal bracing structure.

The present invention also provides a method for constructing a slanted wall outward-turning climbing steel platform, which comprises the following steps:

Step S1, providing the inclined wall outward turning climbing steel platform construction device as claimed in claim 1 or 2 for standby; climbing the integral steel platform formwork system to a certain height below the inclined wall outward turning section through the climbing system, and fixing it to the reserved hole of the lower core tube shear wall through the resting bracket on the bottom beam of the steel platform;

Step S2, using the steel platform as the operating platform, completing the pouring construction of the straight wall section below the top beam of the steel platform, pouring the top beam end of the outer steel platform system into the straight wall section, connecting the lower straight reinforcement with the upper diagonal reinforcement after passing through the long groove opened on the top beam of the steel platform on one side of the inclined wall outward section, and removing the climbing system and the external scaffolding;

Step S3, a temporary support platform is cantilevered at the top of the left straight wall section below the inclined wall outward section, the temporary support platform is fixedly connected to the top beam of the outer steel platform system through a plurality of vertical connecting rods arranged above, a temporary welding construction platform is arranged above the temporary support platform, and the welding connection between the supplementary module and the outer steel platform system is completed to form the supplemented steel platform system;

Step S4, dismantle and hoist the temporary support platform and the temporary welding construction platform, construct the diagonal brace below the top beam of the supplemented steel platform system, the upper end of the diagonal brace is welded to the top beam of the supplemented steel platform system, and the lower end of the diagonal brace is fixedly connected to the straight wall section;

Step S5, erecting temporary scaffolding, completing steel bar binding, pouring concrete, and completing the wall construction from the upper part of the supplemented steel platform system to the outward-turned section of the inclined wall;

Step S6: hoist the movable tool scaffold and install it on the track base of the supplemented steel platform system top beam, and set up a temporary scaffold on the right straight wall section to continue pouring construction;

Step S7, installing an adjustable inclined wall casting formwork on the outermost inclined crossbar of the movable tool scaffolding, accurately adjusting the template position by using telescopic rods at each point combined with BIM digital technology, tying steel bars and tool templates, pouring concrete, and completing the pouring construction of the inclined wall outward turning section;

Step S8, setting up the internal and external scaffolding for the construction of the second vertical wall section on the outer steel platform system, tying up the steel bars and tool formwork, pouring concrete, and constructing the second vertical wall section until the height of the second vertical wall section is sufficient to install the external scaffolding, setting up the tool-type external scaffolding standard section, and installing temporary steel columns and lifting mechanisms on the second vertical wall section on the right side and the other two adjacent vertical wall sections on the completed casting surface;

Step S9, dismantle the temporary inner scaffolding inside the core tube that affects the climbing of the inner steel platform system, cut the steel platform top beam cast inside the wall inside the core tube, lift and fix the inner steel platform system to the reserved holes of the other two straight wall sections adjacent to the second straight wall section on the right, and then dismantle the temporary steel column and lifting mechanism;

Step S10, connecting temporary support steel frames at both sides of the top of the second straight wall section on the right side by buckling, and fixing a temporary welding construction platform on the temporary support steel frames;

Step S11, hoist the supplementary module into place, fix the top beam and bottom beam of the supplementary module to the top beam and bottom beam of the inner steel platform system respectively to form a new steel platform system, remove the temporary construction scaffolding erected below, install an external tool scaffolding on the outside of the top beam of the new steel platform system, then install the steel formwork, tie the steel bars, pour the concrete, and use the new steel platform system to continue to complete the construction of the straight wall section above the second straight wall section and its upper structure.

Furthermore, the step S2 comprises:

A long strip groove for the lower straight reinforcement to pass through is provided at the top beam flange of the outer steel platform system below one side of the inclined wall outward section, corresponding to the position of the lower straight reinforcement. The upper and lower ends of the long strip groove are provided with fastening bolts, and the contact surface between the fastening bolts and the end of the long strip groove is provided with a gasket. By providing a long strip groove that just accommodates the lower straight reinforcement to pass through, combined with the gaskets and fastening bolts provided at the contact surface between the two ends of the long strip groove and the flange of the steel platform top beam, the straight reinforcement can be prevented from tilting. In this way, not only the construction error problem that may occur when the lower straight reinforcement is tied upward is solved, but also the position and verticality of the steel bars passing through the steel platform top beam can be effectively guaranteed, which is convenient for connection with the upper inclined reinforcement, avoiding the provision of conversion mechanisms such as sleeves, and also avoiding the welding of reinforcing components on both sides of the web.

Further, the step S8 comprises:

Install temporary steel columns on the completed surface of the second vertical wall section on the right, install a lifting mechanism on the temporary steel columns, install a through-type hoist, hang a steel wire rope on the bottom beam of the steel platform, lift the new steel platform system to the completed surface of the concrete pouring of the second vertical wall section on the right and the other two adjacent vertical wall sections, and fix the new steel platform system to the reserved holes of the second vertical wall section on the right and the other two adjacent vertical wall sections by placing corbels.

Furthermore, the temporary welding construction platform comprises:

A tetrafluoroethylene composite sliding structure, wherein the tetrafluoroethylene composite sliding structure is arranged between the temporary supporting steel tire frame and the top beam of the steel platform before the supplementation, and a synchronous jacking jack mechanism is arranged at one end of the tetrafluoroethylene composite sliding structure;

A tilt fine-tuning jack, wherein a plurality of the tilt fine-tuning jacks are arranged at intervals between the platform base and the tetrafluoroethylene composite sliding structure;

The top beam of the steel platform before the supplementation is detachably connected to a positioning piece at one end close to the supplementation module.

Furthermore, the positioning member is a L-shaped or inverted L-shaped structure, and the positioning member is used to ensure that the supplementary module is consistent with the top beam level of the steel platform before the supplementation in the pushing direction.

Furthermore, the tetrafluoroethylene composite sliding structure includes a tetrafluoroethylene composite sliding layer and a tray structure, and the tray structure is sandwiched between two layers of tetrafluoroethylene composite sliding layers; the tetrafluoroethylene composite sliding layer includes a rubber layer and a steel plate layer sandwiched between tetrafluoroethylene plates, which can provide a certain deformation and withstand a certain force.

Furthermore, a rotating base is provided in the middle of the synchronous jacking jack mechanism, a jacking head is provided at the front end of the rotating base, rotating tracks are provided on both sides of the rotating base, and the rotating base can rotate along the rotating tracks to a corresponding angle. The direction of the rotating base is adjusted according to the measured inclination angle of the top beam of the steel platform before the supplementation, so that the inclination angle of the jacking head is consistent with the inclination angle of the top beam of the steel platform before the supplementation.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

(1) The inclined wall outward turning climbing steel platform construction device provided by the present invention has a fixed steel platform to provide a larger working surface. The inclined wall outward turning section adopts a movable tool scaffolding and an adjustable inclined wall casting formwork, which can perform casting work faster and form a stable construction scaffolding structure system, avoiding the problem of the traditional steel platform construction method that needs to consider the coordination of the formwork overturning and the steel platform outward turning or other conversion construction systems, thereby ensuring construction safety. In addition, a long strip groove for the lower straight reinforcement to pass through is provided at the top beam flange of the outer steel platform system below one side of the inclined wall outward turning section corresponding to the position of the lower straight reinforcement. By setting a long strip groove that just accommodates the lower straight reinforcement passing through, combined with the gaskets and fastening bolts set at the contact surface between the two ends of the long strip groove and the steel platform top beam flange, the straight reinforcement can be prevented from tilting. In this way, not only the construction error problem that may occur when the lower straight reinforcement is tied upward is solved, but also the position and verticality of the steel bars passing through the steel platform top beam can be effectively guaranteed, which is convenient for connection with the upper inclined reinforcement, avoiding the setting of conversion mechanisms such as sleeves, and also avoiding the welding of reinforcing components on both sides of the web. In addition, by installing an integral prefabricated movable tool-type scaffolding on the track base provided on the top beam of the supplemented steel platform system, the track base is laterally inserted into the tool-type bottom anti-overturning bracket, and combined with the bottom wheel rails on both sides of the sliding bottom wheel on the track base, the anti-overturning ability can be effectively improved. Moreover, by inverted limit fixing blocks on the track base at the front and rear ends of the sliding bottom wheel, and fastening them with the steel flat bolts underneath, the overall structure can effectively support the oblique force transmitted by the construction of large-angle inclined walls without setting diagonal braces.

(2) The inclined wall outward turning climbing steel platform construction method provided by the present invention is suitable for the inclined wall outward turning section of the core tube. In the case of large angles, the steel platform formwork system is first fixed in the straight wall of the core tube at a certain height below the bottom end of the inclined wall, providing a construction platform for setting up scaffolding for the upper inclined wall to flip outward, providing a very safe large construction space, and then according to the upper structure, the original steel platform formwork system is split and supplemented. The upper inclined wall and straight wall casting construction can be completed by one split and supplementary steel platform construction. The construction is fast and safe, and there will be no falling objects from high altitude.

(3) The inclined wall outward-turning climbing steel platform construction method provided by the present invention provides an external construction operation surface, avoiding the complexity of the traditional repeated scaffolding. In addition, on the vertical wall on the upper side of the inclined wall outward-turning section, by using a series of tool-type external scaffolding standard sections attached to the wall for construction, on the one hand, scaffolding building materials are saved, and on the other hand, when the position of the supplemented steel platform is reached, some standard sections below are connected to the upper steel platform through prefabricated non-standard sections. After removing the wall-attached parts, a new set of tool-type external scaffolding can be formed to provide an external operation surface during the upper jacking construction, once again avoiding the complexity of repeatedly setting up scaffolding.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a movable tool-type scaffold in a slanted wall outward-turning climbing steel platform construction device according to an embodiment of the present invention;

FIG2 is a schematic structural diagram of a limit fixing block in a movable tool-type scaffold in a slanted wall outward-turning climbing steel platform construction device according to an embodiment of the present invention;

FIG3 is a schematic structural diagram of an adjustable inclined wall casting formwork in an inclined wall outward-turning climbing steel platform construction device according to an embodiment of the present invention;

FIG4 is a schematic structural diagram of a temporary welding construction platform in a slanted wall outward-turning climbing steel platform construction device according to an embodiment of the present invention;

5 to 15 are schematic diagrams of steps S1 to S11 of a method for constructing an inclined wall outward-turning climbing steel platform in one embodiment of the present invention;

FIG16 is a schematic diagram of a method for constructing a slanted wall outward-turning climbing steel platform according to an embodiment of the present invention, in which the lower straight reinforcement passes through the top beam of the steel platform;

FIG17 is a top view of the installation of a lifting mechanism in a construction method of a slanted wall outward-flip climbing steel platform in one embodiment of the present invention;

FIG. 18 is a schematic diagram of a steel platform supplementary module in a method for constructing an inclined wall outward-flipping and climbing steel platform in another embodiment of the present invention.

In the figure:
11-climbing control system, 12-climbing guide rail, 13-shelf bracket, 14-left vertical wall section, 15-inclined wall outward section, 16-right vertical wall section, 17-second vertical wall section; 20-outer steel platform system, 21-inner steel platform system, 23-new steel platform system, 24-top beam of steel platform before supplementation, 25-steel platform system after supplementation, 26-temporary support steel frame, 27-temporary support column, 28-supplementation module; 30-movable tool scaffolding, 31-bottom wheel Rail, 32-sliding bottom wheel, 33-anti-overturning seat, 34-limiting fixed block, 35-track base, 36-connector, 37-temporary scaffolding, 38-external scaffolding; 41-inner wooden formwork, 42-outer wooden formwork, 43-steel pipe back rib, 44-tool-type square back rib, 45-fixed distance rigid pad, 46-tension bolt, 47-back rib fixing fixture, 48-telescopic screw, 49-top support plate; 52-tool-type external scaffolding; 71-long strip groove, 72-fastening bolt, 73-gasket, 74-lower straight reinforcement; 80-temporary welding construction platform, 81-tetrafluoroethylene composite sliding structure, 82-platform base, 83-synchronous push jack mechanism, 84-tilt fine-tuning jack, 85-positioning piece, 86-limit block, 87-temporary support platform, 88-vertical connecting rod, 89-diagonal brace, 90-lifting mechanism.

Detailed ways

The following is a further detailed description of a slanted wall outward-flipping climbing steel platform construction device and method provided by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will become clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. For the convenience of description, the "upper" and "lower" described below are consistent with the upper and lower directions of the accompanying drawings, but this cannot be a limitation of the technical solution of the present invention.

Embodiment 1

Please refer to Figures 1 to 17 to explain in detail the structural composition of the inclined wall outward-flip climbing steel platform construction device of this embodiment.

Please refer to Figures 1 to 4. The device includes a steel platform and a scaffolding system. The steel platform includes an outer steel platform system 20 and an inner steel platform system 21. The outer steel platform system 20 is fixedly cast in the wall at a certain distance below the outward-flipped section of the core tube inclined wall as a construction platform for the upper scaffolding. The inner steel platform system 21 is lifted upward as the wall is constructed upward during subsequent construction; the steel platform climbs along the shear wall of the core tube through the climbing system, and a track base 35 is provided on the top beam of the supplemented steel platform system 25; the top beam 24 of the steel platform before supplementation includes the top beam of the outer steel platform system 20 and the top beam of the inner steel platform system 21 respectively.

The scaffolding system includes a movable tool-type scaffolding 30 and a temporary construction scaffolding. The movable tool-type scaffolding 30 includes: a tool-type scaffolding body, a sliding bottom wheel 32, an anti-overturning clamp 33 and a limiting fixing block 34. The anti-overturning clamp 33 is inserted into the track base 35 along the length direction of the track. The tool-type scaffolding body is fixedly connected to the sliding bottom wheel 32 through a connector 36. The limiting fixing block 34 is invertedly arranged on the front and rear sides of the sliding bottom wheel 32 and fixed by bolts. In other words, the movable tool-type scaffolding 30 can be directly hoisted and installed on the track base 35 pre-arranged on the top beam of the supplemented steel platform system 25. The sliding bottom wheel 32 is connected to the middle position of the bottom wheel clamp 31, and then the anti-overturning clamp 33 is inserted from the side of the track base 35. Therefore, the bottom wheel clamps on both sides of the sliding bottom wheel 32 on the track base 35 can effectively improve the anti-overturning ability.

In this embodiment, more preferably, it also includes an adjustable inclined wall casting formwork (not shown), which is fixed on the outermost inclined crossbar of the movable tool scaffolding 30. The adjustable inclined wall casting formwork includes an inner wooden formwork 41 and an outer wooden formwork 42, a steel pipe back rib 43, and a tool-type square back rib 44. The distance between the inner wooden formwork 41 and the outer wooden formwork 42 is controlled by a plurality of fixed-distance rigid pads 45, and is tied and fixed by tension bolts 46. The outer side of the inner wooden formwork 41 is clamped with a tool-type square back rib 44 by a back rib fixing clamp 47, and the outer side of the back rib fixing clamp 47 is fixed with a top support plate 49 by a telescopic screw 48. The top support plate 49 is fixedly connected to the outermost crossbar of the movable tool scaffolding by a telescopic screw 48. By setting a fixed distance rigid pad 45 to ensure the distance between the inner wooden formwork 41 and the outer wooden formwork 42, only one side of the formwork needs to be adjusted, for example, the position between the inner wooden formwork 41 or the outer wooden formwork 42. During construction, the BIM digital technology can be combined to use the telescopic screw 48 to accurately adjust the corresponding points of the formwork. In addition, in addition to initially adjusting the formwork as a whole to the predetermined position, it can also ensure that the deformation of the wall of the outward-turned inclined wall section during the entire process is consistent with the design without setting the diagonal brace 89.

Please refer to Figures 5 to 15, the present invention also provides a method for constructing a slanted wall outward-turning climbing steel platform, the construction method comprising the following steps:

Referring to FIG5 , step S1, providing the aforementioned inclined wall outward-turning climbing steel platform construction device for standby; installing a hydraulic climbing integral steel platform formwork system, the hydraulic climbing integral steel platform formwork system comprising a steel platform, a support system, a climbing system and a scaffolding system, the climbing system comprising a climbing control system 11 and a climbing guide rail 12, the integral steel platform formwork system is climbed to a certain height below the inclined wall outward-turning section by the climbing system, and is fixed to the reserved hole of the lower core tube shear wall by the resting bracket 13 on the bottom beam of the steel platform;

Referring to Figure 6, step S2, the top beam end of the outer steel platform system 20 located outside the core tube is cast into the wall of the left straight wall section 14 and the right straight wall section 16, and the steel platform is used as an operating platform to complete the casting construction of the left straight wall section 14 below the top beam of the steel platform, remove the climbing system on the steel platform, remove the external scaffolding on the four sides of the steel platform, and the lower straight reinforcement 74 passes through the long strip groove 71 opened on the top beam of the outer steel platform system 20 on the side of the inclined wall outward section 15 and is connected to the upper inclined reinforcement; in particular, except for the top beam and bottom beam of the inner steel platform system 21, the rest of the parts are connected to the embedded parts in the core tube with high-strength bolts, and the force stability is ensured by rigid connection, which makes it convenient to add steel platforms in the later stage and reduces the welding stress effect.

Referring to FIG7 , step S3, a temporary support platform 87 is cantilevered at the top of the left straight wall section 14 below the inclined wall outward-turned section 15. During construction, the temporary support platform 87 is fixedly connected to the top beam of the outer steel platform system 20 through a plurality of vertical connecting rods 88 arranged above. A temporary welding construction platform 80 is arranged above the temporary support platform 87 to complete the welding connection between the steel platform supplementary module 28 and the outer steel platform system 20 to form the supplemented steel platform system 25; that is, the external scaffolding of the steel platform formwork system is used as the construction space, and the temporary support platform 87 and the upper temporary welding construction platform 80 are constructed after the protective side net is removed with reference to the upper outward-turned structure. The inclined bracing structure is staggered below the temporary support platform 87 near the wall, and the lower end is welded and connected through the embedded parts pre-arranged in the wall; the vertical connecting rods 88 are staggered above the temporary support platform 87 to connect to the top beam of the outer steel platform system 20. The additional steel platform top beam module is precisely welded to the original steel platform by adjusting the inclination angle and shifting the jacking mechanism on the temporary welding construction platform 80 to form the additional steel platform system 25. Of course, a jacking bracket adjustment jacking mechanism can also be added on the side of the temporary welding construction platform 80 that is biased towards the wall to further improve the anti-overturning property of the overall temporary welding construction platform 80.

Referring to FIG8 , step S4, dismantling and lifting the temporary support platform 87 and the temporary welding construction platform 80 and the temporary support platform 87 and the temporary welding construction platform 80 are removed. Temporary connection structure, construct the diagonal brace 89 under the top beam of the supplemented steel platform system 25, use the external hanging scaffolding as a construction platform, remove the protective side net and construct the diagonal brace 89, the lower end of the diagonal brace 89 is welded to the embedded part of the straight wall section, the upper end of the diagonal brace 89 is welded to the top beam of the supplemented steel platform system 25, and the structural components of the diagonal brace 89 are staggered with the components of the tool-type external hanging scaffolding;

Referring to FIG9 , step S5, erecting temporary scaffolding 37, completing steel bar binding and pouring concrete in sequence, and completing the construction of the left straight wall section 14 above the supplemented steel platform system 25 to the inclined wall outward turning section, that is, above the supplemented steel platform system 25; referring to FIG10 , step S6, hoisting the movable tool scaffolding 30 and installing it on the track base 35 of the top beam of the supplemented steel platform system 25, and erecting temporary scaffolding 37 on the right straight wall section 16 to continue pouring construction;

Referring to FIG. 11 , step S7, installing an adjustable inclined wall casting formwork on the outermost inclined crossbar of the movable tool scaffolding, accurately adjusting the template position by combining telescopic rods at each point with BIM digital technology, tying steel bars and tool templates, pouring concrete, and completing the pouring construction of the inclined wall outward turning section 15;

Referring to FIG. 12 and FIG. 17 , step S8, respectively set up the construction inner scaffolding and outer scaffolding of the second straight wall section 17 on the outer steel platform system 20, tie up the steel bars and the tool-type formwork, pour concrete, and construct the second straight wall section 17 until the height of the second straight wall section 17 is able to install the external scaffolding 38, set up the tool-type external scaffolding standard section, install temporary steel columns on the second straight wall section 17 on the right side and the other two adjacent straight wall sections on the finished surface of the casting, install the lifting mechanism 90 on the temporary steel columns, and install the through-type hoist, and hang the wire rope on the bottom beam of the steel platform;

Referring to FIG. 13 , step S9, remove the temporary inner scaffolding inside the core tube that affects the climbing of the inner steel platform system 21, cut the steel platform top beam cast inside the wall inside the core tube, lift and fix the inner steel platform system 21 to the reserved holes of the other two straight wall sections adjacent to the second straight wall section 17 on the right, and then remove the temporary steel column, lifting mechanism 90, hoist and wire rope;

Referring to Figure 14, step S10, a temporary support steel frame 26 is connected to both sides of the top of the second straight wall section 17 on the right side by a buckle-type connection, and a temporary welding construction platform 80 is fixed on the temporary support steel frame 26. The hollow area of the temporary support steel frame 26 is connected by high-strength bolts and fasteners. The inverted temporary support steel frame 26 cannot be guaranteed to be inserted properly due to the unevenness of the walls on both sides, which affects the upper platform structure. Therefore, the temporary support steel frame 26 is designed to be double-jointed, with a small space in the middle, and the two sides are connected after the height is aligned in place. In order to ensure the accuracy and stability of the connection, the temporary support steel frame 26 structures on both sides are connected as a whole through the pre-buried tension members in the wall, and the structures of the temporary support steel frame 26 on both sides are connected to the pre-buried connectors of the wall. When the connection between the two is constructed, the elevation alignment card holder and GPS measuring device are used in conjunction.

In particular, facing the problem that the steel bars on the wall of the second straight wall section 17 on the right are too dense and uneven, making it impossible to directly construct the temporary support steel frame 26 on the wall, in this embodiment, the internal and external scaffolding is used as the construction space, and the temporary support steel frame 26 and the temporary welding construction platform 80 are hoisted and erected, so that the steel platform supplementary module 28 is aligned with the top beam 24 of the steel platform before the supplementation. Precise positioning welding effectively reduces welding stress.

Referring to Figure 15, step S11, hoist the steel platform supplementary module 28 into place, fix the top beam and bottom beam of the steel platform supplementary module 28 to the top beam and bottom beam of the inner steel platform system 21 respectively, complete the supplementary construction of the inner steel platform system 21, form a new steel platform system 23, remove the temporary construction scaffolding erected below, and use the previously erected tool scaffolding standard sections and pre-designed non-standard sections to install an external tool scaffolding on the outside of the top beam of the new steel platform system 23, then install the steel formwork, tie the steel bars, pour the concrete, and use the new steel platform system 23 to continue to complete the construction of the upper straight wall section of the second straight wall section 17 and its upper structure.

In particular, during the climbing process of the new steel platform system 23, in order to effectively transmit the force of the new climbing mechanism on the upper part to the lower structure, temporary support columns 27 are provided between the inclined wall outward-flip section 15 and the left straight wall section 14 below it, and the number of temporary support columns 27 is adjusted according to the upper load conditions.

In particular, the top beams of the outer steel platform system 20 are respectively fixedly cast in the left straight wall section 14 and the right straight wall section 16 below the inclined wall outward-flip section 15, and can be dismantled when the lower main body structure is constructed upward to the corresponding position and the upper structure no longer needs to use the climbing system to continue construction.

Referring to FIG. 16 , in this embodiment, more preferably, step S2 includes:

A long strip groove 71 is provided at the position of the lower straight reinforcement corresponding to the top beam flange of the outer steel platform system 20 below one side of the inclined wall outward section 15, and the long strip groove 71 is provided with fastening bolts 72 at the upper and lower ends, and a gasket 73 is provided at the contact surface between the fastening bolt 72 and the end of the long strip groove 71. By providing a long strip groove 71 that just accommodates the lower straight reinforcement to pass through, combined with the gasket 73 and fastening bolt 72 provided at the contact surface between the two ends of the long strip groove 71 and the flange of the steel platform top beam, the straight reinforcement can be prevented from tilting. In this way, not only the construction error problem that may occur when the lower straight reinforcement is tied upward is solved, but also the position and verticality of the lower straight reinforcement 74 passing through the steel platform top beam can be effectively guaranteed, which is convenient for connection with the upper inclined reinforcement, avoiding the provision of conversion mechanisms such as sleeves, and also avoiding the welding of reinforcing components on both sides of the web of the steel platform top beam.

Please continue to refer to FIG. 17 . In this embodiment, more preferably, step S8 includes:

A temporary steel column is installed on the finished casting surface of the second straight wall section 17 on the right side, a lifting mechanism 90 is installed on the temporary steel column, and a through-type hoist is installed, and a steel wire rope is hung on the bottom beam of the steel platform, and the new steel platform system 23 is lifted to the finished concrete casting surface of the second straight wall section 17 on the right side and the other two adjacent straight wall sections with the same elevation, and the inner steel platform system 21 is fixed to the reserved holes of the second straight wall section 17 on the right side and the other two adjacent straight wall sections with the same elevation by placing a corbel; finally, the temporary steel column, the lifting mechanism 90, the hoist and the steel wire rope are removed.

In this embodiment, more preferably, the temporary welding construction platform 80 includes a tetrafluoroethylene composite sliding structure 81, a tilt fine-adjusting jack 84 and a platform base 82. The tetrafluoroethylene composite sliding structure 81 is arranged between the temporary supporting steel tire frame 26 and the top beam 24 of the steel platform before the supplementation. One end of the tetrafluoroethylene composite sliding structure 81 is provided with a synchronous top-pushing jack. Structure 83; multiple inclination fine-tuning jacks 84 are arranged at intervals between the platform base 82 and the tetrafluoroethylene composite sliding structure 81. In order to fix the inclination fine-tuning jacks 84, limit blocks 86 are also provided on the outer sides of the bases of the inclination fine-tuning jacks 84 at both ends; the top beam 24 of the steel platform before the addition is close to one end of the additional module 28 and is detachably connected to the positioning piece 85.

In this embodiment, more preferably, the positioning member 85 is a L-shaped or inverted L-shaped structure, and the positioning member 85 is used to ensure that the supplementary module 28 is consistent with the horizontality of the top beam 24 of the steel platform before the supplementation in the pushing direction.

In this embodiment, more preferably, the tetrafluoroethylene composite sliding structure 81 includes a tetrafluoroethylene composite sliding layer and a tray structure, and the tray structure is sandwiched between two layers of tetrafluoroethylene composite sliding layers; the tetrafluoroethylene composite sliding layer includes a rubber layer and a steel plate layer sandwiched between a tetrafluoroethylene plate, which can provide a certain deformation and withstand a certain force.

In this embodiment, more preferably, a rotating base is provided in the middle of the synchronous jacking mechanism 83, a jacking head is provided at the front end of the rotating base, rotating tracks are provided on both sides of the rotating base, and the rotating base can rotate along the rotating tracks at a corresponding angle. The direction of the rotating base is adjusted according to the measured inclination angle of the top beam 24 of the steel platform before the supplementation, so that the inclination angle of the jacking head is consistent with the inclination angle of the top beam 24 of the steel platform before the supplementation, which is used to adjust the inclination angle of the top beam 24 of the steel platform before the supplementation.

In this embodiment, more preferably, in step S8 to step S11, another alternative construction method can also be used: retain the construction scaffolding on the upper part of the inner side of the inclined wall flip section, when the bottom beam of the steel platform just exceeds the height of the inclined wall flip section, first, install a temporary lifting system on the concrete pouring completion surface of the second straight wall section corresponding to this height, and lift the steel platform to the concrete pouring completion surface of the second straight wall section and fix it; then, remove all temporary lifting mechanisms, lift the steel platform supplementary module into place and fix it with the top beam and bottom beam of the steel platform to form a deformed steel platform, and use the supplemented steel platform formwork system inside the core tube to install the climbing system (climbing boots, climbing guide rails, etc.); finally, when the height of the second straight wall section is constructed to be able to install an external scaffolding, hang the external scaffolding on the deformed steel platform, and tie the steel bars and pour concrete, so as to complete the construction of the straight wall section above the inclined wall flip section and its upper structure.

In this embodiment, more preferably, the arrangement and number of the overall lifting mechanism are obtained by force analysis calculation. The main method is to calculate its weight in advance according to the steel platform formwork system after the split, and then perform modeling calculations, calculate the number of upper arrangements through the relevant parameters of the elevator, and then actually apply it. Taking into account the eccentric effect of the lifting mechanism (if it is arranged on four sides, this problem will exist if a lifting mechanism is set up on the second section of the straight wall on the outward-turned side of the inclined wall), the outward-turned lifting mechanism is designed to be arranged on the second section of the straight wall on the three sides corresponding to the top of the split steel platform. Of course, if the bearing capacity is met, it only needs to be set on the walls on both sides of the outward-turned wall of the inclined wall. Of course, if in the construction condition of the climbing steel platform with inclined walls in the core tube, at this time, there is no need to consider the problem of the eccentric effect of the lifting mechanism, and the lifting mechanism can be directly arranged on the second straight wall sections on the four sides corresponding to the top of the split steel platform.

Embodiment 2

Please refer to Figure 18, this embodiment provides another construction method of the steel platform supplementary module, that is, the replacement construction method. The platform supplementary module directly adopts the form of the top beam structure hoisting tool-type external scaffolding 52, and directly uses the tool-type external scaffolding 52 to replace the steel platform supplementary module to form a new steel platform system 23, which is faster to assemble and the overall safety is also guaranteed. It is mainly divided into two methods: small gap and large gap:

First, for small gaps, if there is a gap between the steel platform supplementary module formed by hoisting and assembling the tool-type external scaffolding 52 and the original steel platform formwork system on the right side, a connecting passage (fastener-type crossing plates at both ends) can be directly set up on each floor for people to pass through.

Secondly, for large gaps, a special set of tool-type standard segments will be designed according to the supplementary size data during the design phase, and this series of tool-type standard segments of different sizes before the supplement can also be used in the external construction of the core tube if the wall attachment verification passes. It should be noted that the later climbing bottom-mounted corbel group using tool-type standard segments mainly utilizes the walls perpendicular to both sides of the inclined wall section (there is insufficient bearing capacity without a bottom beam on the external scaffolding standard segment). If this method is used, the number and position of the corbel group can be adjusted on the original steel platform bottom beam in advance according to the design calculation.

The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples. The above embodiments only express several embodiments of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims (9)

1. A construction device for an inclined wall outward-turning climbing steel platform, characterized in that it comprises:

   Steel platform, the steel platform includes an outer steel platform system and an inner steel platform system, the steel platform climbs along the core tube shear wall through a climbing system, and a track base is provided on the top beam of the supplemented steel platform system;

   A scaffolding system, the scaffolding system includes a movable tool scaffolding and a temporary construction scaffolding, the movable tool scaffolding includes: a tool scaffolding body, a sliding bottom wheel, an anti-overturning holder and a limiting fixing block, the anti-overturning holder is inserted into the track base along the length direction of the track, the tool scaffolding body is fixedly connected to the sliding bottom wheel through a connecting head, and the limiting fixing block is invertedly arranged on the front and rear sides of the sliding bottom wheel and fixed by bolts.
2. The inclined wall outward-flip climbing steel platform construction device according to claim 1 is characterized in that it also includes an adjustable inclined wall casting formwork, which is fixed on the outermost inclined cross bar of the movable tool-type scaffolding. The adjustable inclined wall casting formwork includes an inner wooden formwork and an outer wooden formwork, a steel pipe back rib, and a tool-type square back rib. The distance between the inner wooden formwork and the outer wooden formwork is controlled by a plurality of fixed-distance rigid pads, and is fixed by tension bolts. The outer side of the inner wooden formwork is clamped with a tool-type square back rib by a back rib fixing clamp, and the outer side of the back rib fixing clamp is fixed to the top support plate by a telescopic screw.
3. A method for constructing an inclined wall outward-turning climbing steel platform, characterized in that it comprises the following steps:

   Step S1: Provide the inclined wall outward-turning climbing steel platform construction as claimed in claim 2 The device is ready for use; the integral steel platform formwork system is raised to a certain height below the inclined wall outward-turned section through the climbing system, and is fixed to the reserved hole of the lower core tube shear wall through the shear legs on the bottom beam of the steel platform;

   Step S2, using the steel platform as the operating platform, completing the pouring construction of the straight wall section below the top beam of the steel platform, pouring the top beam end of the outer steel platform system into the straight wall section, connecting the lower straight reinforcement with the upper diagonal reinforcement after passing through the long groove opened on the top beam of the steel platform on one side of the inclined wall outward section, and removing the climbing system and the external scaffolding;

   Step S3, a temporary support platform is cantilevered at the top of the left straight wall section below the inclined wall outward section, the temporary support platform is fixedly connected to the top beam of the outer steel platform system through a plurality of vertical connecting rods arranged above, a temporary welding construction platform is arranged above the temporary support platform, and the welding connection between the supplementary module and the outer steel platform system is completed to form the supplemented steel platform system;

   Step S4, dismantle and hoist the temporary support platform and the temporary welding construction platform, construct the diagonal brace below the top beam of the supplemented steel platform system, the upper end of the diagonal brace is welded to the top beam of the supplemented steel platform system, and the lower end of the diagonal brace is fixedly connected to the straight wall section;

   Step S5, erecting temporary scaffolding, completing steel bar binding, pouring concrete, and completing the wall construction from the upper part of the supplemented steel platform system to the outward-turned section of the inclined wall;

   Step S6: hoist the movable tool scaffold and install it on the track base of the supplemented steel platform system top beam, and set up a temporary scaffold on the right straight wall section to continue pouring construction;

   Step S7: Install an adjustable inclined wall casting formwork on the outermost inclined crossbar of the movable tool scaffolding, and accurately adjust the formwork by using telescopic rods at each point combined with BIM digital technology. The slab position, tying steel bars and tool formwork, pouring concrete, and completing the pouring construction of the inclined wall outward section;

   Step S8, setting up the internal and external scaffolding for the construction of the second vertical wall section on the outer steel platform system, tying up the steel bars and tool-type formwork, pouring concrete, and constructing the second vertical wall section until the height of the second vertical wall section is sufficient to install the external scaffolding, setting up the tool-type external scaffolding standard section, and installing temporary steel columns and lifting mechanisms on the second vertical wall section on the right side and the other two adjacent vertical wall sections on the completed casting surface;

   Step S9, dismantle the temporary inner scaffolding inside the core tube that affects the climbing of the inner steel platform system, cut the steel platform top beam cast inside the wall inside the core tube, lift and fix the inner steel platform system to the reserved holes of the other two straight wall sections adjacent to the second straight wall section on the right, and then dismantle the temporary steel column and lifting mechanism;

   Step S10, connecting temporary support steel frames at both sides of the top of the second straight wall section on the right side by buckling, and fixing a temporary welding construction platform on the temporary support steel frames;

   Step S11, hoist the supplementary module into place, fix the top beam and bottom beam of the supplementary module to the top beam and bottom beam of the inner steel platform system respectively to form a new steel platform system, remove the temporary construction scaffolding erected below, install an external tool scaffolding on the outside of the top beam of the new steel platform system, then install the steel formwork, tie the steel bars, pour the concrete, and use the new steel platform system to continue to complete the construction of the straight wall section above the second straight wall section and its upper structure.
4. The method according to claim 3, characterized in that step S2 comprises:

   A long strip groove for the lower straight reinforcement to pass through is provided at the position of the top beam flange of the outer steel platform system below one side of the inclined wall outer turn section corresponding to the position of the lower straight reinforcement. The lower two ends are provided with fastening bolts, and the contact surfaces between the fastening bolts and the ends of the long strip grooves are provided with gaskets.
5. The method according to claim 3, characterized in that step S8 comprises:

   Install temporary steel columns on the completed surface of the second vertical wall section on the right, install lifting mechanisms on the temporary steel columns, install through-type hoists, hang steel wire ropes on the bottom beam of the steel platform, lift the new steel platform system to the completed concrete casting surface of the second vertical wall section on the right and the other two adjacent vertical wall sections, and fix the new steel platform system to the reserved holes of the second vertical wall section on the right by placing corbels.
6. The method according to claim 3, characterized in that the temporary welding construction platform comprises:

   A tetrafluoroethylene composite sliding structure, wherein the tetrafluoroethylene composite sliding structure is arranged between the temporary supporting steel tire frame and the top beam of the steel platform before the supplementation, and a synchronous jacking jack mechanism is arranged at one end of the tetrafluoroethylene composite sliding structure;

   A tilt fine-tuning jack, wherein a plurality of the tilt fine-tuning jacks are arranged at intervals between the platform base and the tetrafluoroethylene composite sliding structure;

   The top beam of the steel platform before the supplementation is detachably connected to a positioning piece at one end close to the supplementation module.
7. The method according to claim 6 is characterized in that the positioning member is a [-]-shaped or inverted L-shaped structure.
8. The method according to claim 6 is characterized in that the tetrafluoroethylene composite sliding structure comprises a tetrafluoroethylene composite sliding layer and a tray structure, wherein the tray structure is sandwiched between two layers of tetrafluoroethylene composite sliding layers; the tetrafluoroethylene composite sliding layer comprises A rubber layer and a steel plate layer are sandwiched between the tetrafluoroethylene plates.
9. The method according to claim 6 is characterized in that a rotating base is provided in the middle of the synchronous pushing jack mechanism, a pushing head is provided at the front end of the rotating base, rotating tracks are provided on both sides of the rotating base, and the rotating base can rotate along the rotating track at a corresponding angle.