Supporting system of building beam plate cover structure and construction method of building beam plate cover concrete structure

Abstract

The invention relates to the technical field of building construction, and provides a supporting system of a building beam plate cover structure and a construction method of a building beam plate cover concrete structure.The supporting system of the building beam plate cover structure comprises a plurality of stand columns, a plurality of supporting brackets, a supporting beam assembly and a plurality of lifting devices; through the synergistic effect of the stand columns arranged in an array mode, the adjustable lifting equipment and the modularized supporting beam assembly, accurate adjustment of the supporting height is achieved through a transverse oil cylinder and a vertical oil cylinder of the lifting equipment, the stable bearing structure of the supporting bracket is combined, material consumption is effectively reduced, and the construction efficiency and safety are improved; meanwhile, the stability and the bearing capacity of the supporting system are enhanced, and the supporting system has the advantages that material waste is reduced, construction efficiency is improved, safety and the bearing capacity are enhanced, and the supporting height is convenient to adjust.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a support system of a building beam-slab cover structure and a construction method of a building beam-slab cover concrete structure. Background Art

[0002] The full-height support system currently commonly used in the market has many technical defects. This system requires a large amount of support materials, which not only causes a waste of resources, but also significantly increases construction costs. In terms of space utilization, the full-height support system requires densely set support points, which seriously limits the available space on the construction site and affects the parallel operation of other processes. In addition, the traditional support system mainly relies on manual erection, which has low construction efficiency and safety hazards. Especially in high-altitude working environments, the risk factor of manually erected support systems is higher and safety accidents are prone to occur. The existing support system is also insufficient in terms of bearing capacity and cannot meet the needs of large-span box girder construction. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention proposes a support system for a building beam-slab cap structure. The system has the advantages of high construction efficiency, significantly reducing the amount of construction materials, significantly reducing the number of workers working at height, thereby reducing safety risks, high structural load-bearing capacity, good safety, easy adjustment of support height, and low requirements for bottom surface foundation treatment.

[0004] The invention also provides a construction method for a building beam and slab cover concrete structure.

[0005] The support system of the building beam-slab cover structure according to the first embodiment of the present invention includes: A plurality of columns, wherein the plurality of columns are arranged in an array; A plurality of supporting corbels, wherein the plurality of supporting corbels are provided on a plurality of the columns, and at least some of the columns are provided with the supporting corbels; A support beam assembly, the support beam assembly is used to overlap the support corbel, and the support beam assembly is used to support the primary and secondary keels and the formwork; Several lifting devices are provided on several of the columns, and at least some of the columns are provided with the lifting devices. The lifting devices include an upper transverse oil cylinder, a lower transverse oil cylinder, and a vertical oil cylinder. The upper transverse oil cylinder and the lower transverse oil cylinder are both surrounded by the columns. The upper transverse oil cylinder and the lower transverse oil cylinder are suitable for clamping or loosening the columns. The vertical oil cylinder is respectively connected to the upper transverse oil cylinder and the lower transverse oil cylinder. The vertical oil cylinder is suitable for telescopically adjusting the distance between the upper transverse oil cylinder and the lower transverse oil cylinder.

[0006] According to the support system of the building beam and slab cover structure of the embodiment of the present invention, through the coordinated action of the arrayed columns, adjustable lifting equipment and modular support beam components, the horizontal cylinder and vertical cylinder of the lifting equipment are used to achieve precise adjustment of the support height. Combined with the stable load-bearing structure of the supporting corbel, it effectively reduces material consumption, improves construction efficiency and safety, and enhances the stability and load-bearing capacity of the support system. It has the advantages of reducing material waste, improving construction efficiency, enhancing safety and load-bearing capacity, and facilitating the adjustment of the support height.

[0007] According to one embodiment of the present invention, the support beam assembly comprises: a plurality of main beams, the plurality of main beams being arranged at intervals along a first direction, the main beams being overlapped on the supporting corbels, the main beams comprising two main Bailey beams arranged in parallel, the two main Bailey beams being respectively arranged on opposite sides of the columns in the same row; A plurality of secondary beams are arranged at intervals along a second direction, the second direction is perpendicular to the first direction, the secondary beams are overlapped on the main beams, and the secondary beams are used to jointly support the main and secondary keels and the formwork.

[0008] According to one embodiment of the present invention, the laying density of the plurality of secondary beams is greater than the laying density of the plurality of main beams.

[0009] According to one embodiment of the present invention, the supporting corbel comprises: A plurality of tensioning screws, wherein the plurality of tensioning screws are used to penetrate through the columns and are arranged in parallel; Two support assemblies, one support assembly is provided at one end of the tension screw and abuts against one side of the column, and the other support assembly is provided at the other end of the tension screw and abuts against the other side of the column, and the support assembly is provided with a support plane; Multiple bolts are respectively arranged at both ends of the multiple tension screw rods, and the bolts are used to connect the tension screw rods and the support assembly. Each bolt is arranged corresponding to one end of the tension screw rod.

[0010] According to a second embodiment of the present invention, a construction method for a building beam-slab cover concrete structure employs the above-mentioned support system for the building beam-slab cover structure, and the steps include: Installing the lifting device on the column; Assembling the support beam assembly on the lifting device on the ground; Lifting the support beam assembly to a specified height of the column using the lifting device; Installing the supporting corbel on the column to support the supporting beam assembly; Installing primary and secondary keels and formwork on the support beam assembly, and pouring concrete; After the concrete reaches the strength requirement, the primary and secondary keels and formwork, the supporting corbels, the supporting beam assembly and the lifting equipment are removed.

[0011] According to one embodiment of the present invention, the step of lifting the support beam assembly to a specified height of the column by the lifting device includes: The upper transverse oil cylinder is relaxed, and the vertical oil cylinder is extended to lift the upper transverse oil cylinder away from the lower transverse oil cylinder to a preset height; The upper transverse oil cylinder presses the column tightly; The lower transverse cylinder is relaxed, and the vertical cylinder is retracted upward so that the lower transverse cylinder is close to the upper transverse cylinder; The lower transverse oil cylinder presses the column tightly; Repeat the above steps until the support beam assembly is lifted to the specified height of the column.

[0012] According to one embodiment of the present invention, the supporting corbel is installed on the column to support the supporting beam assembly: The unloading block and the supporting corbel are installed on the column where the lifting device is not provided.

[0013] According to one embodiment of the present invention, after the step of installing the supporting corbel on the column to support the supporting beam assembly, the step further includes: The lifting device is lowered and removed, and the supporting brackets are installed on the corresponding columns.

[0014] According to one embodiment of the present invention, after the concrete reaches the strength requirement, before the step of removing the support beam assembly, the method further includes: After removing part of the supporting brackets and replacing the lifting equipment, all the unloading blocks and the supporting brackets are removed.

[0015] According to one embodiment of the present invention, after the step of removing all the unloading blocks and the supporting corbels, the method further comprises: The support beam assembly is lowered to ground level by the lifting device.

[0016] According to the construction method of the building beam-slab cover concrete structure according to the embodiment of the present invention, it includes the support system of the above-mentioned building beam-slab cover structure, and therefore has all the technical effects of the support system of the above-mentioned building beam-slab cover structure, which will not be repeated here.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural schematic diagram of the support system of the building beam and slab cover structure provided by an embodiment of the present invention in the ground assembly step.

[0020] Figure 2 It is a structural schematic diagram of the support system of the building beam and slab cover structure provided by an embodiment of the present invention, wherein the vertical cylinder lifts the upper horizontal cylinder.

[0021] Figure 3 It is a structural schematic diagram of the support system of the building beam and slab cover structure provided by an embodiment of the present invention, wherein the contraction of the vertical cylinder drives the lower horizontal cylinder to rise.

[0022] Figure 4 It is a structural schematic diagram of the support system of the building beam and slab cover structure provided by an embodiment of the present invention, wherein the vertical cylinder lifts the upper horizontal cylinder.

[0023] Figure 5 It is a structural schematic diagram of the support system of the building beam and slab cover structure provided by an embodiment of the present invention, wherein the contraction of the vertical cylinder drives the lower horizontal cylinder to rise.

[0024] Figure 6 It is a structural schematic diagram of the support system of the building beam-slab cover structure provided by an embodiment of the present invention, wherein the support beam assembly is at a specified height of the column.

[0025] Figure 7 It is a structural schematic diagram of the support system of the building beam and slab cover structure provided by an embodiment of the present invention, which is in the step of installing a supporting corbel on a column without a lifting device.

[0026] Figure 8 It is a structural schematic diagram of the support system of the building beam and slab cover structure provided by an embodiment of the present invention, wherein all columns are installed with supporting corbels.

[0027] Figure 9 It is a structural schematic diagram of the support system of the building beam and slab cover structure provided by an embodiment of the present invention, in which some supporting corbels are replaced with lifting equipment.

[0028] Figure 10 It is a structural schematic diagram of the support system of the building beam and slab cover structure provided by an embodiment of the present invention, with all supporting corbels removed.

[0029] Figure 11 It is a structural schematic diagram of the support system of the building beam and slab cover structure provided by an embodiment of the present invention, wherein the lifting equipment is lowered to the ground level.

[0030] Figure 12 It is a schematic diagram of the installation structure of the support bracket provided by an embodiment of the present invention.

[0031] Figure 13 It is a flow chart of a construction method of a building beam and slab cover concrete structure provided by an embodiment of the present invention.

[0032] Reference numerals: 1. Column; 2. Support corbel; 21. Tie screw; 22. Support assembly; 23. Bolt; 3. Support beam assembly; 31. Main beam; 32. Secondary beam; 4. Lifting equipment; 41. Upper horizontal cylinder; 42. Lower horizontal cylinder; 43. Vertical cylinder. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0034] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0035] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0036] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0037] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0038] Existing technologies require densely packed support points, resulting in high material consumption and low site utilization. Traditional support structures rely on manual erection, which can be inefficient and pose safety risks. When constructing box girders in narrow sites or complex terrain, the support system consumes excessive working space, hindering the access of other equipment. Repeated erection and dismantling processes also waste manpower and resources.

[0039] To address these issues, it was discovered that traditional support systems lacked the ability to balance structural stability and space efficiency. A structural form needed to be developed that could reduce the number of support points while still maintaining load-bearing capacity. Considering the precise control capabilities of hydraulic drive, an attempt was made to combine a lifting mechanism with column 1 to create a self-climbing support system. The bracket mounting positions were optimized, and selective placement was employed to reduce material usage while preserving the load-bearing capacity of key nodes.

[0040] Therefore, if Figure 1 and Figure 2 As shown, the present application proposes an array of columns 1, supporting brackets 2 provided on the columns 1, a support beam assembly 3 connected to the brackets, and a lifting device 4 comprising an upper transverse cylinder 41, a lower transverse cylinder 42, and a vertical cylinder 43. The lifting device 4 achieves step-by-step lifting by alternately holding the columns 1, and the support beam assembly 3 carries the primary and secondary keels and formwork.

[0041] Among them, the column 1 refers to a vertically arranged load-bearing member, which can be specifically implemented by a reinforced concrete column or a composite steel column to form a spatial coordinate reference for the support system. The supporting corbel 2 refers to a supporting structure fixed on the column 1, which can be specifically implemented by a detachable steel bracket, and is used to temporarily bear the load of the support beam assembly 3. The support beam assembly 3 refers to a horizontal force transmission structure, which can be specifically implemented by a combination of a Bailey beam and a secondary beam 32 to form an installation platform for the primary and secondary keels and formwork. The lifting device 4 refers to a height adjustment device, which can be specifically implemented by a hydraulic drive system. The upper horizontal cylinder 41 and the lower horizontal cylinder 42 are respectively equipped with a clamping mechanism, and the vertical cylinder 43 connects the two horizontal cylinders to form a telescopic drive unit.

[0042] Specifically, the columns 1 are arranged in a matrix form to form a basic support network, and the supporting corbels 2 are selectively installed at key load-bearing nodes. When the support height needs to be adjusted, the upper horizontal cylinder 41 releases the column 1, and the vertical cylinder 43 extends to push the upper horizontal cylinder 41 up, and then hugs the column 1 to form a new fulcrum. After the lower horizontal cylinder 42 is released, the vertical cylinder 43 contracts to drive the entire structure to rise, forming an alternating climbing action. The support beam assembly 3 is arranged in layers through the main beam 31 and the secondary beam 32. The main beam 31 spans the corbels of the two columns 1, and the secondary beam 32 is laid densely to form a dense ribbed bearing surface. This structure reduces the number of columns 1 used while ensuring support stability through the synergistic effect of the supporting corbels 2 and the lifting equipment 4.

[0043] When in use, the lifting device 4 is operated to make the entire structure climb to the target height, and then the supporting brackets 2 are installed on other columns 1 without the lifting device 4, so as to avoid the supporting brackets 2 and the lifting device 4 interfering with each other and being unable to operate on the same column 1. In addition, after the supporting brackets 2 are installed, the lifting devices 4 on other columns 1 will automatically drop to vacate the position, and then the supporting brackets 2 will be installed. That is to say, the lifting device 4 can be moved to other positions for continued use after the operation is completed. The supporting brackets 2 are used for bearing when tying steel bars and pouring concrete.

[0044] Compared to existing technologies, traditional full-floor support requires a continuous arrangement of support points. This solution reduces the density of support points through the use of arrayed columns (1) and selective bracket installation. Traditional manual erection methods are replaced by a hydraulically driven lifting mechanism, eliminating the risks of working at height. The modular design of the support beam assembly (3) facilitates faster assembly and reuse compared to traditional scaffolding.

[0045] Through the above technical solution, this application effectively reduces the amount of support materials used, and the spacing between columns 1 can be expanded to more than twice that of a conventional support system. The lifting equipment 4 realizes automatic height adjustment, which improves construction efficiency and reduces manual dependence. The alternating use of the supporting corbels 2 and the lifting equipment 4 enables the support system to adapt to load changes in different pouring stages. The array layout of the columns 1 frees up ground space, allowing construction machinery to pass freely under the support system. The hydraulic clamping mechanism ensures structural stability during the lifting process, avoiding the local instability problem that is prone to occur in traditional support systems.

[0046] like Figure 1 As shown, the present application further proposes a support beam assembly 3 comprising a plurality of main beams 31 and a plurality of secondary beams 32. The main beams 31 are arranged at intervals along a first direction and overlapped on the support corbels 2. Each main beam 31 is composed of two parallel main Bailey beams, one on each side of the same row of columns 1. The secondary beams 32 are arranged at intervals along a second direction perpendicular to the first direction and overlapped on the main beams 31. The secondary beams 32 jointly support the primary and secondary keels and the formwork.

[0047] Among them, the main beam 31 refers to a load-bearing member arranged at intervals along the first direction, which can be specifically implemented by a steel structure truss or Bailey beam, and the material consumption is reduced by reducing the lateral support density. The secondary beam 32 refers to an auxiliary load-bearing member arranged along the second direction, which can be specifically implemented by an I-beam or a channel steel, and a continuous support surface is formed by increasing the laying density. The main Bailey beam refers to a truss unit arranged in parallel on both sides of the column 1, which can be specifically implemented by assembling a standard Bailey plate, and the force balance of the column 1 is achieved by a bilaterally symmetrical arrangement. The first direction refers to the arrangement direction of the main beam 31, such as the longitudinal direction, and the number of main beams 31 is reduced by arranging them at intervals. The second direction refers to the arrangement direction of the secondary beam 32, such as the transverse direction, and an orthogonal grid structure is formed by arranging them vertically.

[0048] Specifically, when the main beams 31 are arranged at intervals along the first direction, the two main Bailey beams are located on either side of the column 1, forming a symmetrical support structure to avoid moment imbalance caused by unilateral cantilevering. The secondary beams 32 are arranged at a higher density along the second direction, forming a dense transverse support surface, evenly transferring the loads of the primary and secondary keels and formwork to the main beams 31. The contact surface between the main Bailey beams and the column 1 is rigidly connected via the support bracket 2, and the secondary beams 32 are fixed to the main beam 31 using bolts or welding. The main beam 31 bears the longitudinal load and transmits it to the column 1 through the support bracket 2, while the secondary beams 32 bear the transverse load and distribute it to multiple columns 1 through the main beam 31.

[0049] The present application further proposes that the laying density of the secondary beams 32 is greater than the laying density of the main beams 31 .

[0050] The laying density refers to the number of beams arranged per unit length. This can be achieved by ensuring that the spacing between primary beams 31 is an integer multiple of the spacing between secondary beams 32. For example, the spacing between primary beams 31 should be two or three times the spacing between secondary beams 32. The dense arrangement of secondary beams 32 forms a high-density support grid, while the sparse arrangement of primary beams 31 creates a long-span load-bearing framework.

[0051] Specifically, primary beams 31 are arranged at large intervals along a first direction, forming a basic support framework. Secondary beams 32 are laid across the primary beams 31 at smaller intervals along a second direction. The primary beams 31 bear the longitudinal load and transmit it to the columns 1. The dense arrangement of secondary beams 32 evenly distributes the formwork load to the primary beams 31. During concrete pouring, the high-density arrangement of secondary beams 32 creates multi-point support, effectively distributing localized concentrated loads and preventing formwork deformation. The wide spacing between primary beams 31 reduces steel usage while leaving space for the lifting equipment 4 to operate.

[0052] Through this technical solution, the high-density placement of secondary beams 32 enhances the uniformity of load distribution on the formwork support surface, while the low-density arrangement of primary beams 31 reduces the amount of steel required for each column while maintaining the overall structural load-bearing capacity. This differentiated density configuration achieves a balance between reducing construction costs and improving structural reliability.

[0053] like Figure 12 As shown, the present application further proposes that the support bracket 2 includes multiple tension screws 21, two support assemblies 22 and multiple bolts 23. Multiple tension screws 21 are arranged in parallel and pass through the column 1, two support assemblies 22 are respectively abutted on both sides of the column 1, and the support assemblies 22 are provided with support planes. Multiple bolts 23 are respectively provided at both ends of the tension screws 21 to connect the tension screws 21 and the support assemblies 22.

[0054] The tension screw 21 refers to a rod that passes through the column 1. Specifically, it can be implemented by a high-strength steel screw. By passing through the column 1, a bidirectional force-bearing structure is formed to enhance the shear strength. The support assembly 22 refers to a load-bearing component with a support plane. Specifically, it can be implemented by a ribbed steel plate welded structure. By abutting the two sides of the column 1 to form a symmetrical support surface, the load is dispersed to avoid stress concentration. The bolt 23 refers to a fastener connecting the tension screw 21 and the support assembly 22. Specifically, it can be implemented by a hexagonal head bolt with a nut. The double fixation at both ends prevents loosening and failure.

[0055] Specifically, after the tension screw 21 passes through the column 1, the two ends are fixed to the support assembly 22 by bolts 23. The support plane of the support assembly 22 is completely in contact with the side of the column 1 to form a stable contact surface. When the support beam assembly 3 is overlapped on the support plane, the load is transmitted to the tension screw 21 through the support plane, and the tension screw 21 then disperses the force to both sides of the column 1. The bolts 23 simultaneously lock the tension screw 21 and the support assembly 22 at both ends to form a double fixed node to ensure the reliability of the connection. Multiple tension screws 21 arranged in parallel form a redundant force transmission path, which can maintain structural stability when a single screw fails.

[0056] Through the above technical solution, this application solves the problem of inefficient installation caused by the complex structure of traditional support brackets 2, reduces damage to the column 1 structure, and avoids welding. The symmetrical support structure eliminates the risk of instability caused by eccentric loads, and the parallel arrangement of multiple screws improves overall load-bearing redundancy. The dual fixing method of bolts 23 effectively prevents loosening of the connection caused by construction vibration, ensuring the stability of the support bracket 2 under dynamic loads.

[0057] Please refer to Figures 2 to 11 , the present application further proposes a construction method for a building beam-slab cover concrete structure, such as Figure 13 As shown, the steps include: installing the lifting device 4 on the column 1; assembling the support beam assembly 3 on the lifting device 4 on the ground; lifting the support beam assembly 3 to the specified height of the column 1 by the lifting device 4; installing the support bracket 2 on the column 1 to support the support beam assembly 3; installing the primary and secondary keels and formwork on the support beam assembly 3, and pouring concrete; after the concrete reaches the strength requirement, removing the primary and secondary keels and formwork, the support bracket 2, the support beam assembly 3 and the lifting device 4.

[0058] Among them, Figures 2 to 6 As shown, the lifting device 4 refers to a device that achieves lifting by alternately clasping the column 1. Specifically, this can be achieved using a combination structure comprising a transverse cylinder and a vertical cylinder 43. The transverse cylinder surrounds the column 1 and secures it by clasping or releasing it. The vertical cylinder 43 adjusts the distance between the upper and lower cylinders by telescoping, thereby gradually lifting the support beam assembly 3. The support beam assembly 3 refers to a modular load-bearing structure composed of a main beam 31 and a secondary beam 32. Specifically, it can be pre-assembled on the ground using standard components such as Bailey beams. The main beam 31 overlaps the support bracket 2 along a first direction, and the secondary beam 32 is laid vertically on the main beam 31 to form a high-density support surface. The support bracket 2 refers to a rigid support component fixed to the column 1. Specifically, it can be achieved using a combination structure of a tension screw 21 and a support assembly 22. The tension screw 21 passes through the column 1 and is fixed to the support assembly 22 on both sides by bolts 23. The support surface contacts the support beam assembly 3 to transfer the load.

[0059] Specifically, this construction method uses the alternating clamping and jacking actions of the lifting device 4 to lift the support beam assembly 3 assembled on the ground to the target height in stages, avoiding the risks of traditional high-altitude erection operations. The supporting bracket 2 forms a fixed support point on the column 1, and together with the dynamic adjustment of the lifting device 4, it forms a dual force system to ensure stability during the concrete pouring process. The support beam assembly 3 adopts a modular design. The cross arrangement of the main beam 31 and the secondary beam 32 can adapt to different span requirements. Ground assembly reduces on-site work time. During the dismantling stage, the lifting device 4 is reversed to gradually recover the components, reducing material loss.

[0060] Compared to existing technologies, traditional full-height support systems require densely packed scaffolding, taking up significant space and preventing the reuse of materials. This method, however, utilizes the synergistic effect of the lifting device 4 and the supporting corbels 2, requiring only key support points on the columns 1, reducing material usage and improving space utilization. While traditional methods rely on manual layer-by-layer erection, which is inefficient and poses safety risks, this method utilizes mechanized lifting devices 4 to achieve automated jacking, significantly improving construction efficiency.

[0061] Through the above technical solution, this application solves the problems of resource waste and high construction costs in the traditional support system, reduces material consumption through modular components and reusable lifting equipment 4; reduces the risk of high-altitude operations and improves construction safety through ground assembly and mechanized jacking; realizes stable load transfer and avoids the risk of structural deformation through the dynamic coordination of the supporting bracket 2 and the lifting equipment 4; shortens the construction period and improves site turnover efficiency through the rapid disassembly and assembly of standardized components.

[0062] Please refer to Figures 2 to 6 The present application further proposes a step of lifting the support beam assembly 3 to a specified height of the column 1 by means of a lifting device 4, which includes: relaxing the upper transverse cylinder 41, extending the vertical cylinder 43 to lift the upper transverse cylinder 41 away from the lower transverse cylinder 42 to a preset height; the upper transverse cylinder 41 presses against the column 1; the lower transverse cylinder 42 relaxes, and the vertical cylinder 43 contracts upward to make the lower transverse cylinder 42 close to the upper transverse cylinder 41; the lower transverse cylinder 42 presses against the column 1; and repeating the above steps until the lifting is completed.

[0063] Among them, the relaxation of the upper horizontal cylinder 41 refers to the release of the cylinder's surrounding constraint on the column 1, which can be achieved specifically by using the hydraulic system pressure relief method. This operation allows the cylinder to move freely along the column 1. The extension of the vertical cylinder 43 refers to driving the cylinder piston rod to extend, which can be specifically controlled by a double-acting hydraulic cylinder in conjunction with a hydraulic pump station to provide vertical jacking power. The preset height refers to the set value of a single jacking stroke, which can be set to 200-500 mm according to the cylinder stroke parameters. This parameter must meet the structural stability requirements. The tightening of the column 1 by the lower horizontal cylinder 42 refers to pressurizing the hydraulic system to make the cylinder hold the column 1 tightly, which can be specifically achieved by using an annular clamp in conjunction with a friction plate structure to form a reliable support point.

[0064] Specifically, the jacking process achieves step-by-step lifting by alternately controlling the clamping state of the upper and lower cylinders. When the upper horizontal cylinder 41 is relaxed, the vertical cylinder 43 extends and pushes the support beam assembly 3 to rise. After reaching the preset height, the upper horizontal cylinder 41 immediately clamps to form a new support point. At this time, the lower horizontal cylinder 42 is released and reset by the contraction of the vertical cylinder 43. This cyclic action is achieved through the sequential control of the hydraulic system, and each cycle lifts the stroke height by one. During the jacking process, at least one horizontal cylinder is always kept in a clamped state to ensure the stability of the support system. Repeating this cycle can achieve continuous jacking until the required elevation position for construction is reached.

[0065] Through the above technical solution, this application achieves controllable mechanical lifting of the support system. The alternating clamping mechanism transforms aerial work into ground-controlled operations, reducing the incidence of safety accidents. Standardized control of a single lifting stroke reduces the number of times support materials are reused and reduces material loss.

[0066] like Figure 7 As shown, the present application further proposes installing a drop block and a supporting corbel 2 on a column 1 where no lifting device 4 is provided.

[0067] The drop block is a modular load-bearing component used for load transfer, specifically a steel wedge or adjustable spacer. Changing the height or position of the drop block gradually releases the supporting force. The supporting corbel 2 is a cantilevered load-bearing structure fixed to the side wall of the column 1, specifically a welded steel plate or bolted steel member. Its support plane contacts the main beam 31, forming a stable force transmission path.

[0068] Specifically, based on the classification of the columns 1, only the columns 1 that are not equipped with lifting equipment 4 are subjected to the combined installation of the unloading block and the supporting corbel 2. The supporting corbel 2 is fixed to the side of the column 1 by bolts or welding to form a permanent support point. The unloading block is arranged between the supporting corbel 2 and the main beam 31, and the main beam 31 is brought into close contact with the supporting corbel 2 by adjusting the height of the unloading block. During the demolition stage, the load is unloaded in a stepped manner by gradually removing the unloading blocks to avoid sudden structural instability. This installation method allows the lifting equipment 4 to be configured only at key adjustment nodes, and the remaining columns 1 complete the load transfer through the fixed supporting corbel 2, thereby reducing the total amount of equipment used.

[0069] Through the above technical solution, the present application effectively reduces the total amount of lifting equipment 4 used, directly reducing equipment rental and maintenance costs, while also shortening the construction period through the rapid installation of the fixed support bracket 2. The stepped unloading mechanism of the unloading block avoids the risk of impact loads during traditional overall demolition, ensuring the safety of the demolition operation.

[0070] like Figure 8 As shown, the present application further proposes that the lifting device 4 is lowered and removed, and the supporting bracket 2 is installed on the corresponding column 1.

[0071] Among them, the lowering and removal of the lifting device 4 refers to the detachment and removal of the lifting device 4 that completes the jacking function from the column 1. Specifically, it can be achieved by controlling the contraction of the vertical cylinder 43 to drive the upper horizontal cylinder 41 and the lower horizontal cylinder 42 to descend synchronously, and separating it from the column 1 by relaxing the clamping force of the horizontal cylinder. This step releases the space on the column 1 originally occupied by the lifting device 4, providing position conditions for the installation of the support bracket 2. Among them, installing the support bracket 2 on the corresponding column 1 refers to setting a support structure at the position of the column 1 where the original lifting device 4 is located. Specifically, it can be achieved by using a tension screw 21 that passes through the column 1 and forms a load-bearing plane through the support assembly 22. This step replaces the temporary jacking equipment with a permanent support structure to ensure the stability of the support beam assembly 3.

[0072] Specifically, after the supporting corbel 2 completes the load-bearing of the supporting beam assembly 3, the lifting device 4 contracts the vertical cylinder 43 to drive the upper transverse cylinder 41 and the lower transverse cylinder 42 to move downward along the column 1. Then the transverse cylinder releases the clamping state to separate the device from the column 1, and finally the entire device is dismantled. At this time, the position of the column 1 originally occupied by the lifting device 4 is vacated, and the supporting corbel 2 is installed to fill this position, forming a complete corbel support system. In this process, the lifting device 4 only serves as a temporary device in the jacking stage. After its dismantling, the resources of the column 1 are reconfigured, and the installation of the supporting corbel 2 realizes the support function.

[0073] like Figure 9 and Figure 10As shown, the present application further proposes that after the concrete reaches the strength requirement, before removing the support beam assembly 3, part of the support bracket 2 is removed, and after replacing the lifting equipment 4, all the unloading blocks and the support bracket 2 are removed.

[0074] Among them, the removal of some supporting corbels 2 refers to the selective removal of some supporting corbels 2 after the concrete structure reaches a predetermined strength, while retaining the remaining supporting corbels 2 to maintain structural stability. Specifically, this can be achieved by adopting a method of alternating removal of different areas to ensure that there are always effective support points during the load transfer process. Among them, the replacement of the lifting device 4 refers to the reinstallation of the lifting device 4 in the position where the supporting corbel 2 has been removed. Specifically, the lifting device 4 on the original column 1 can be used for secondary installation, utilizing its clamping and jacking functions to form a dynamic support system, replacing the load-bearing function of the original supporting corbel 2.

[0075] Specifically, when the concrete structure reaches the strength requirement, the supporting corbel 2 is first partially removed, and part of the corbel is retained as a temporary support. Subsequently, the lifting device 4 is installed at the position of the column 1 where the corbel has been removed, and the column 1 is fixed by the clamping mechanism of the lifting device 4. The support height is adjusted by the vertical cylinder 43 to form a new load-bearing point. At this time, the remaining supporting corbel 2 and the lifting device 4 share the load to avoid structural instability. After the installation of the lifting device 4 is completed, all the unloading blocks and the remaining supporting corbel 2 are gradually removed. During this process, the lifting device 4 continues to provide dynamic support, and the support height is adjusted by the extension and contraction of the cylinder to achieve smooth load transfer.

[0076] In some embodiments, the installation location of the lifting device 4 is preferably selected at the node of the column 1 after the original lifting device 4 is removed, and the pre-buried connectors are used for quick installation. The removal order of the unloading blocks can be carried out according to the principle of symmetrical distribution to avoid local stress concentration.

[0077] Compared with existing technologies, traditional support systems rely entirely on manual labor for dismantling, which carries risks associated with high-altitude work and is inefficient. Furthermore, the repeated erection of temporary support structures wastes resources. This solution utilizes phased dismantling in conjunction with the lifting device 4, replacing manual dismantling with mechanical devices to reduce the frequency of high-altitude work. The dynamic support function of the lifting device 4 avoids the repeated erection of temporary supports, achieving efficient resource utilization.

[0078] Through the above technical solution, this application solves the problem of high dependence on manual labor in the traditional demolition process, replaces manual operation with mechanical lifting and adjustment, reduces the risk of falling from heights; eliminates material waste caused by repeated erection of temporary supports; uses alternating support points to maintain structural stability, and prevents safety hazards caused by sudden changes in load during the demolition process.

[0079] like Figure 11As shown, the present application further proposes that after the steps of removing all the unloading blocks and the supporting corbels 2 , the supporting beam assembly 3 is lowered to the ground level by the lifting device 4 .

[0080] The lifting device 4 refers to a hydraulic lifting device consisting of an upper horizontal cylinder 41, a lower horizontal cylinder 42, and a vertical cylinder 43. Specifically, a hydraulic drive system can be used to realize the telescopic control of the cylinder, and the lifting function is realized by alternately tightening or loosening the column 1. The device provides controllable vertical displacement during the descent of the support beam assembly 3, avoiding the risks of high-altitude operations during traditional manual demolition. The ground height refers to the position of the support beam assembly 3 after it is completely separated from the support of the column 1. Specifically, precise positioning can be achieved through the stroke control of the lifting device 4. This feature ensures that the support assembly 22 can be completely recovered to the ground working area, facilitating subsequent disassembly and maintenance.

[0081] Specifically, after the concrete structure is completed, the lifting device 4 activates the retraction function of the vertical cylinder 43, causing the entire support beam assembly 3 to slowly descend. The upper and lower transverse cylinders 41 and 42 alternately grip the columns 1, achieving a step-by-step descent through the cyclical action of the cylinders' extension and retraction. During this process, the support beam assembly 3 maintains its overall structural stability, eliminating the need for high-altitude disassembly. Once the support beam assembly 3 is lowered to the ground, it can be directly disassembled and transported, eliminating the need for overhead work.

[0082] Through the above-mentioned technical solution, this application solves the problems of low manual operation efficiency, difficult material recovery, and safety hazards associated with traditional demolition processes. By controlling the overall descent of the support beam assembly 3 using the lifting device 4, the number of overhead operations is reduced, mitigating the risk of personnel falling. Positioning the support assembly 22 at ground level allows for its complete recovery, minimizing material loss and simplifying the subsequent disassembly process. This solution also avoids the use of additional lifting equipment, enabling efficient and controllable demolition operations using the existing lifting device 4.

[0083] Finally, it should be noted that the above embodiments are intended to illustrate the present invention only and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and are intended to be encompassed by the claims of the present invention.

Claims

1. A support system for a building beam and slab cover structure, characterized in that: include: A plurality of columns, wherein the plurality of columns are arranged in an array; A plurality of supporting corbels, wherein the plurality of supporting corbels are provided on a plurality of the columns, and at least some of the columns are provided with the supporting corbels; A support beam assembly, the support beam assembly is used to overlap the support corbel, and the support beam assembly is used to support the primary and secondary keels and formwork thereon; Several lifting devices are provided on several of the columns, and at least some of the columns are provided with the lifting devices. The lifting devices include an upper transverse oil cylinder, a lower transverse oil cylinder, and a vertical oil cylinder. The upper transverse oil cylinder and the lower transverse oil cylinder are both surrounded by the columns. The upper transverse oil cylinder and the lower transverse oil cylinder are suitable for clamping or loosening the columns. The vertical oil cylinder is respectively connected to the upper transverse oil cylinder and the lower transverse oil cylinder. The vertical oil cylinder is suitable for telescopically adjusting the distance between the upper transverse oil cylinder and the lower transverse oil cylinder.

2. The support system of the building beam-slab cover structure according to claim 1, characterized in that: The support beam assembly comprises: a plurality of main beams, the plurality of main beams being arranged at intervals along a first direction, the main beams being overlapped on the supporting corbels, the main beams comprising two main Bailey beams arranged in parallel, the two main Bailey beams being respectively arranged on opposite sides of the columns in the same row; A plurality of secondary beams are arranged at intervals along a second direction, the second direction is perpendicular to the first direction, the secondary beams are overlapped on the main beam, and the secondary beams are used to jointly support the primary and secondary keels and templates thereon.

3. The support system of the building beam-slab cover structure according to claim 2, characterized in that: The laying density of the plurality of secondary beams is greater than the laying density of the plurality of main beams.

4. The support system of the building beam-slab cover structure according to any one of claims 1 to 3, characterized in that: The supporting corbel comprises: A plurality of tensioning screws, wherein the plurality of tensioning screws are used to penetrate through the columns and are arranged in parallel; Two support assemblies, one support assembly is provided at one end of the tension screw and abuts against one side of the column, and the other support assembly is provided at the other end of the tension screw and abuts against the other side of the column, and the support assembly is provided with a support plane; Multiple bolts are respectively arranged at both ends of the multiple tension screw rods, and the bolts are used to connect the tension screw rods and the support assembly. Each bolt is arranged corresponding to one end of the tension screw rod.

5. A construction method for a building beam-slab cap concrete structure, using the support system of the building beam-slab cap structure according to any one of claims 1 to 4, characterized in that the steps include: Installing the lifting device on the column; Assembling the support beam assembly on the lifting device on the ground; Lifting the support beam assembly to a specified height of the column using the lifting device; Installing the supporting corbel on the column to support the supporting beam assembly; Installing primary and secondary keels and formwork on the support beam assembly, and pouring concrete; After the concrete reaches the strength requirement, the primary and secondary keels and formwork, the supporting corbels, the supporting beam assembly and the lifting equipment are removed.

6. The construction method of the building beam-slab cap concrete structure according to claim 5, characterized in that: The step of lifting the support beam assembly to a specified height of the column by the lifting device includes: The upper transverse oil cylinder is relaxed, and the vertical oil cylinder is extended to lift the upper transverse oil cylinder away from the lower transverse oil cylinder to a preset height; The upper transverse oil cylinder presses the column tightly; The lower transverse cylinder is relaxed, and the vertical cylinder is retracted upward so that the lower transverse cylinder is close to the upper transverse cylinder; The lower transverse oil cylinder presses the column tightly; Repeat the above steps until the support beam assembly is lifted to the specified height of the column.

7. The construction method of the building beam-slab cap concrete structure according to claim 5, characterized in that: The supporting bracket is installed on the column to support the supporting beam assembly: The unloading block and the supporting corbel are installed on the column where the lifting device is not provided.

8. The construction method of the building beam-slab cap concrete structure according to claim 7, characterized in that: After the step of installing the supporting corbel on the column to support the supporting beam assembly, the method further includes: The lifting device is lowered and removed, and the supporting brackets are installed on the corresponding columns.

9. The construction method of the building beam-slab cap concrete structure according to claim 8, characterized in that: After the concrete reaches the strength requirement, before the step of removing the support beam assembly, the method further includes: After removing part of the supporting brackets and replacing the lifting equipment, all the unloading blocks and the supporting brackets are removed.

10. The construction method of the building beam-slab cap concrete structure according to claim 9, characterized in that: After the step of removing all the unloading blocks and the supporting corbels, the method further comprises: The support beam assembly is lowered to ground level by the lifting device.

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