House building cantilever floor supporting frame and construction method thereof

Abstract

The invention relates to a building cantilever floor supporting frame and a construction method thereof, and relates to the field of building cantilever concrete structure engineering construction, the supporting frame comprises a supporting platform and an embedded part, and the embedded part comprises a first bracket and a second bracket; each supporting single body comprises a horizontal rod piece, an adjusting seat, a locking piece and an inclined supporting rod piece; the horizontal rod piece is parallel to the second direction, and one end of the horizontal rod piece is fixedly connected to the first bracket; the adjusting base is slidably connected to the horizontal rod piece in the second direction. The locking piece is connected between the adjusting seat and the horizontal rod piece; one end of the inclined supporting rod piece is rotationally connected to the adjusting base through a first hinge shaft, and the other end is rotationally connected to the second bracket through a second hinge shaft. An included angle smaller than 90 degrees is formed between the inclined supporting rod piece and the horizontal rod piece. The construction method has the advantages that installation is convenient, a traditional full framing and high formwork construction mode is replaced, and construction safety is improved.

Description

Technical Field

[0001] The present application relates to the field of cantilever concrete structure engineering construction for building construction, and in particular to a cantilever floor support frame for building construction and a construction method thereof. Background Art

[0002] In the construction of cantilevered concrete structure projects, the traditional formwork method is usually a full-frame formwork method, or a high-formwork project. Nowadays, with the rapid development of the construction industry, high-rise buildings are becoming more and more common. Public buildings such as hotels and commercial buildings usually design irregular planes in pursuit of facade effects. However, due to functional requirements or structural calculation limitations, there will be problems of suspension in the concave and convex positions of the plane. Conventional formwork methods are very difficult to implement, and at the same time bring great safety hazards and construction costs.

[0003] In order to solve a series of construction problems caused by suspension, in the related technology, the application document with application number 202411380651.8 discloses an assembled cantilever component and construction method, including a main beam, a cantilever component beam is arranged on the outside of the main beam, and a mounting plate is fixedly connected to the outer wall of the main beam. A plurality of groups of threaded holes are provided on the side of the mounting plate away from the main beam, and a first bolt is threadedly connected in each of the threaded holes. The mounting plate is fixed to the bottom of the cantilever component beam to be assembled by the plurality of groups of first bolts.

[0004] Regarding the relevant technology, when the cantilever length is long and the component width is wide, due to the heavy weight of the cantilever beam, the traction rope needs to have sufficient height in the vertical direction. When the height of the building structure above the floor to be constructed does not meet the installation height requirement of the traction rope, it is difficult to sufficiently pull the cantilever beam. Therefore, when the installation height of the traction rope in the vertical direction is insufficient, providing a structure that can improve the stability of the cantilever beam is an urgent problem to be solved. Summary of the invention

[0005] In order to provide a structure capable of improving the stability of cantilever beams, the present application provides a cantilever floor support frame for building construction and a construction method thereof.

[0006] In the first aspect, the present application provides a cantilever floor support frame for building construction, which adopts the following technical solution: A cantilever floor support frame for building construction, comprising: Support platform; and, The embedded part comprises: First leg; and A second corbel, wherein the second corbel and the first corbel are sequentially distributed in the first direction, and the second corbel is located on a side of the first corbel away from the supporting platform; Also includes: A supporting unit, wherein the supporting unit and the supporting platform are sequentially distributed in a first direction, and the supporting unit comprises: A horizontal rod, wherein the horizontal rod is arranged parallel to the second direction, and one end of the horizontal rod is fixedly connected to the first corbel, and the support platform is arranged on the horizontal rod; An adjustment seat, the adjustment seat being slidably connected to the horizontal rod along a second direction; a locking member, the locking member being connected between the adjustment seat and the horizontal rod to fix the adjustment seat to the horizontal rod; and, A diagonal bracing member, one end of which is rotatably connected to the adjustment seat via a first hinge shaft, and the other end of which is rotatably connected to the second bracket via a second hinge shaft, wherein the first hinge shaft and the second hinge shaft are both parallel to the third direction; an angle less than 90° is formed between the diagonal bracing member and the horizontal member.

[0007] By adopting the above technical solution, there is no need to install inclined traction structures such as inclined cables above the floor to be constructed, so that the support frame is suitable for construction environments with different heights and spans; in addition, the adjustment seat can slide freely on the horizontal rod and lock in the required position, so that the angle of the diagonal support rod can be adjusted according to actual needs, so as to better adapt to different construction environments and load conditions; at the same time, the design of the diagonal support rod effectively disperses the load force, enhances the bearing capacity of the entire system, and improves the stability of the cantilever structure, ensuring the safety and reliability of the construction site.

[0008] Optionally, a limiting hole is formed through the adjusting seat along the second direction, and the horizontal rod is passed through the limiting hole along the second direction.

[0009] By adopting the above technical solution, the adjustment seat can slide freely along the horizontal rod, so as to adjust the position of the adjustment seat and ensure the stability and adaptability of the support platform. At the same time, the design of the limit hole ensures the stable connection between the adjustment seat and the horizontal rod, prevents loosening during construction, and improves the safety and reliability of the overall structure.

[0010] Optionally, a first locking hole is provided on the horizontal rod; The adjusting seat is provided with a second locking hole, the second locking hole is provided on the side wall of the adjusting seat and is communicated with the limiting hole; The locking piece is inserted into the second locking hole and the first locking hole.

[0011] By adopting the above technical solution, the adjustment seat can slide along the horizontal rod and lock in a predetermined position, thereby realizing the height and angle adjustment of the support platform, and improving the flexibility and applicability of the support frame; when in use, it is only necessary to insert the locking piece into the first locking hole and the second locking hole to complete the locking operation. This design makes the construction process more convenient, and can quickly complete the assembly and positioning of the support frame, ensuring construction efficiency and safety.

[0012] Optionally, in the second direction, a plurality of the first locking holes are spaced apart from each other.

[0013] By adopting the above-mentioned technical solution, the spaced distribution design of multiple first locking holes in the second direction allows the adjustment seat to be fixed at different positions of the horizontal rod, thereby realizing precise adjustment of the height and position of the support platform; that is, multiple first locking holes are provided in the second direction, and different locking points can be flexibly selected to ensure that the support platform is stable and reliable in the required position.

[0014] Optionally, a plurality of the supporting units are distributed in sequence and at intervals along the third direction.

[0015] By adopting the above technical solution, the spaced distribution of multiple support units in the third direction improves the stability of the entire support frame, ensures uniform force on the cantilevered part, and avoids safety hazards caused by local overload; at the same time, this layout method enables the support platform to obtain effective support at different positions, thereby enhancing the rigidity and deformation resistance of the overall structure.

[0016] Optionally, a connecting rod is further included, and the connecting rod is fixedly connected between the diagonal bracing rods in two adjacent supporting units.

[0017] By adopting the above technical solution, the setting of the connecting rod enhances the stability between two adjacent supporting units, prevents structural deformation caused by external loads, and improves the overall rigidity and safety of the entire support frame; specifically, the connecting rod is fixedly connected between two adjacent diagonal bracing members, effectively transmitting and dispersing the force, avoiding structural damage caused by excessive local force, thereby ensuring the stability and reliability of the cantilever component during the construction process.

[0018] Optionally, the support platform includes: a support plate, wherein the support plate is arranged perpendicular to the first direction and is located on a side of the first corbel away from the second corbel; and A transverse support bar is arranged parallel to the third direction; in the first direction, the transverse support bar is fixedly connected between the support plate and the horizontal rod.

[0019] By adopting the above technical solution, the transverse support bars are arranged parallel to the third direction and fixedly connected between the support plate and the horizontal rods, which further enhances the overall rigidity and anti-deformation ability of the support platform and ensures safety and reliability during the construction process.

[0020] Optionally, the support platform further includes: A longitudinal support bar, in a first direction, the longitudinal support bar is fixedly connected between the transverse support bar and the support plate; The longitudinal support strips are arranged parallel to the second direction.

[0021] By adopting the above technical solution, the stability of the support platform is increased, especially the connection strength between the transverse support strips and the support plates, which makes the entire support platform more uniform when bearing loads, effectively avoiding safety hazards caused by local uneven force; at the same time, the design of the longitudinal support strips improves the overall rigidity of the support platform, further enhances its anti-deformation ability, and ensures safety and reliability during the construction process.

[0022] Optionally, the transverse support bar and / or the longitudinal support bar is an I-beam.

[0023] By adopting the above technical solution, the I-beam has good bending resistance, can effectively resist the deformation caused by construction load, and extend the service life of the support frame.

[0024] In a second aspect, the present application provides a construction method for a cantilever floor support frame for building construction, which adopts the following technical solution: A construction method for a cantilever floor support frame for building construction comprises the following steps: S1: Assemble and embed the first corbel and the second corbel and other embedded parts to a preset position; S2: Support the formwork, pour concrete at the location where the embedded parts are buried and maintain; S3: Remove the formwork and check whether the embedded quality of the embedded parts and the concrete strength meet the requirements; S4: Assemble the supporting unit on the ground; S5: Lift the support unit and install the locking piece between the adjustment seat and the horizontal rod; S6: Install the pre-stressed I-beam on the support frame, and install the through-hole hydraulic jack between the pre-stressed I-beam and the fixed point, which is a point fixed to the ground or a certain part of the building; then, perform load detection; S61: Check whether the jack and oil pump are properly connected and calibrated, and check whether the pressure value calculation is correct; if correct, proceed to the next step; S62: Loading program; Before formal loading, preload with the first level load, and the preload holding time is 20 minutes; preload is repeated twice, and formal loading is carried out after 60 minutes; According to the first level of load, two hydraulic jacks are used to load the support frame symmetrically and evenly; the load holding time is 60 minutes; when the structural displacement reaches relative stability, the next load stage is entered; within the same level of load, if the displacement increment of the measuring point with the largest structural displacement in the last 5 minutes is less than 15% of the displacement increment in the first 5 minutes, the structural displacement is considered to be relatively stable; The second to fourth level loads are applied in sequence, and the loads increase step by step; After each level of load is completed, deformation observations are carried out and detailed records are made.

[0025] By adopting the above technical scheme, firstly, the first corbel and the second corbel are embedded in the preset floor during the construction of the preset floor, thereby ensuring the foundation stability of the support frame; secondly, after the preset floor is demolded, the quality of the embedded parts and the concrete strength are checked to see if they meet the standards, thereby ensuring the safety and reliability of subsequent construction; then, the support units are assembled on the ground, thereby avoiding the risks of high-altitude operations and improving work efficiency; finally, the support units are hoisted to the embedded parts and connected to them, thereby realizing rapid positioning and installation, thereby further enhancing the overall stability of the support frame.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the design of embedded parts and supporting units, effective support for cantilever beams is achieved, solving the problem of poor stability of cantilever beams caused by height restrictions on building structures in traditional technologies; 2. The adjustment seat in the supporting unit can slide and lock along the horizontal rod, which is convenient for flexibly adjusting the position of the supporting platform according to actual construction needs, improving the applicability and flexibility of the device; 3. The angle design between the diagonal bracing members and the horizontal members makes the entire support frame have better mechanical properties and enhances the overall stability of the cantilevered part; BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a structural schematic diagram of the support platform in an embodiment of the present application; Figure 2 It is a structural schematic diagram of the embedded parts and the supporting unit in the embodiment of the present application; Figure 3 yes Figure 2 A magnified view of part A; Figure 4 It is a structural schematic diagram of the support platform and the plate buckle frame formwork system in the embodiment of the present application; Figure 5 is a schematic structural diagram of a cylindrical sleeve in an embodiment of the present application; Figure 6 It is a schematic diagram of the structure of the clamping assembly and the driving assembly in the embodiment of the present application; Figure 7 It is a schematic diagram of the structure of the wedge block in the embodiment of the present application.

[0027] Description of reference numerals: 1. embedded part; 11. first corbel; 12. second corbel; 2. supporting unit; 21. horizontal rod; 211. first locking hole; 22. adjusting seat; 221. limiting hole; 222. second locking hole; 23. locking piece; 24. diagonal bracing rod; 25. connecting rod; 3. supporting platform; 31. supporting plate; 311. plug hole; 32. transverse supporting bar; 33. longitudinal supporting bar; 4. buckle frame formwork system; 41. vertical pole; 5. Cylindrical sleeve; 51. Plug-in end; 52. Connecting end; 53. Conical head; 54. Upper guide hole; 55. Lower guide hole; 6. Driving shaft; 7. Rotating disc; 8. Clamping assembly; 81. Wedge block; 811. Wedge surface; 82. Driving rod; 83. Compression spring; 84. Upper clamping rod; 85. Lower clamping rod; 9. Driving assembly; 91. First bevel gear; 92. Second bevel gear; 93. Connecting shaft; 94. Handle; 95. Tightening screw. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-7 The present application is further described in detail. For ease of description, the present application introduces directional words such as a first direction, a second direction, and a third direction to form a three-dimensional reference direction. The directional words used, such as "a first direction, a second direction, and a third direction", can be specifically shown with reference to the figure, where X represents the first direction X, Y represents the second direction Y, and Z represents the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0029] The present application embodiment discloses a cantilever floor support frame for building construction. Figure 1 and Figure 2 The cantilever floor support frame of the building construction includes an embedded part 1, a supporting unit 2 and a supporting platform 3. The supporting unit 2 is installed on the floor slab through the embedded part 1, and the supporting platform 3 is installed on the embedded part 1.

[0030] Reference Figure 1 and Figure 2 The embedded part 1 includes a first corbel 11 and a second corbel 12. The supporting platform 3, the first corbel 11 and the second corbel 12 are distributed in sequence in the first direction, and the second corbel 12 is located on the side of the first corbel 11 away from the supporting platform 3. The first corbel 11 and the second corbel 12 are used to be embedded in the floor slab to facilitate the subsequent installation of the supporting platform 3.

[0031] Reference Figure 1 , Figure 2 and Figure 3The supporting unit 2 and the supporting platform 3 are sequentially distributed in the first direction, and the supporting unit 2 includes a horizontal rod 21, an adjustment seat 22, a locking member 23 and a diagonal support rod 24; The horizontal rod 21 is arranged parallel to the second direction, one end of the horizontal rod 21 is fixedly connected to the first corbel 11, and the other end is cantilevered, and the adjustment seat 22 is slidably connected to the horizontal rod 21 along the second direction. Specifically, a limiting hole 221 is penetrated through the adjustment seat 22 along the second direction, and the horizontal rod 21 is penetrated through the limiting hole 221 along the second direction, so that the adjustment seat 22 can move along the second direction on the horizontal rod 21; The locking member 23 is connected between the adjustment seat 22 and the horizontal rod 21 to fix the adjustment seat 22 to the horizontal rod 21. The horizontal rod 21 is provided with a first locking hole 211, which penetrates the horizontal rod 21 along the third direction; in the second direction, a plurality of first locking holes 211 are spaced apart. The adjusting seat 22 is provided with a second locking hole 222, which passes through the side wall of the adjusting seat 22 along the third direction and is communicated with the limiting hole 221; the locking member 23 is passed through the second locking hole 222 and one of the first locking holes 211. In the present disclosure, the locking member 23 is a latch, which passes through the second locking hole 222 and is inserted into the first locking hole 211, so that the adjusting seat 22 and the horizontal rod 21 can be fixed by the locking member 23; after the adjusting seat 22 is slid along the horizontal rod 21 to a preset position, the adjusting seat 22 and the horizontal rod 21 only need to be fixed by the locking member 23; One end of the diagonal brace member 24 is rotatably connected to the adjustment seat 22 via a first hinge axis, and the other end is rotatably connected to the second bracket 12 via a second hinge axis. Both the first hinge axis and the second hinge axis are parallel to the third direction; an angle less than 90° is formed between the diagonal brace member 24 and the horizontal member 21.

[0032] Reference Figure 4 The supporting monomer 2 is used to support the supporting platform 3. In order to support the supporting platform 3 more firmly, a plurality of supporting monomers 2 are distributed in sequence in the third direction, and a connecting rod 25 is fixedly connected between the diagonal support rods 24 in two adjacent supporting monomers 2; preferably, the connecting rod 25 is a telescopic rod, and the telescopic direction is the rod length direction of the connecting rod 25. In the present disclosure, the connecting rod 25 is arranged parallel to the third direction, and a plurality of connecting rods 25 are distributed in sequence along the rod length direction of the diagonal support rod 24.

[0033] Reference Figure 4The support platform 3 includes a support plate 31, a transverse support bar 32 and a longitudinal support bar 33. The support plate 31 is arranged perpendicular to the first direction. In the first direction, the support plate 31, the longitudinal support bar 33, the transverse support bar 32 and the horizontal rod 21 are arranged in sequence from the first corbel 11 to the second corbel 12; specifically, the transverse support bar 32 is fixedly connected to the horizontal rod 21, the transverse support bar 32 is parallel to the third direction, and in the second direction, a plurality of transverse support bars 32 are spaced apart; the longitudinal support bar 33 is fixedly connected to the transverse support bar 32, the longitudinal support bar 33 is parallel to the second direction, and a plurality of longitudinal support bars 33 are spaced apart in the third direction; the support plate 31 is fixedly connected to the fixed longitudinal support bar 33. The transverse support bar 32 and / or the longitudinal support bar 33 are I-beams. Preferably, the transverse support bar 32 and the longitudinal support bar 33 in the present disclosure are both I-beams.

[0034] Reference Figure 4 In some embodiments of the present application, it also includes a plate-hook frame formwork system 4 having a plurality of vertical poles 41, the vertical poles 41 are arranged parallel to the first direction, and the vertical poles 41 are connected to the support plate 31, so that the entire plate-hook frame formwork system 4 can be installed on the support plate 31.

[0035] Reference Figure 5 , Figure 6 and Figure 7 In order to facilitate the installation of the vertical rod 41 on the support plate 31, in some embodiments of the present application, a connecting device is further included, and each vertical rod 41 is connected to the support plate 31 through a corresponding connecting device; the connecting device includes a cylindrical sleeve 5, a driving shaft 6, a rotating disc 7 and a clamping assembly 8; The cylindrical sleeve 5 is parallel to the first direction, one end of the cylindrical sleeve 5 is a plug-in end 51, and the other end is a connecting end 52; the connecting end 52 of the cylindrical sleeve 5 is fixedly connected to the vertical rod 41 through a flange, and the plug-in end 51 of the cylindrical sleeve 5 is coaxially fixedly connected with a conical head 53, which blocks the plug-in end 51 of the cylindrical sleeve 5, and the maximum outer diameter of the conical head 53 is equal to the outer diameter of the cylindrical sleeve 5; a plug hole 311 is opened on the support plate 31 along the first direction, and the existence of the conical head 53 can facilitate the guidance of the cylindrical sleeve 5 to penetrate the plug hole 311; after the conical head 53 passes through the plug hole 311, the cylindrical sleeve 5 and the support plate 31 can be fixed, and the outer diameter of the cylindrical sleeve 5 is consistent with the inner diameter of the plug hole 311 to reduce the shaking of the cylindrical sleeve 5 on the support plate 31; The driving shaft 6 is coaxially located in the cylindrical sleeve 5, and the driving shaft 6 is connected to the conical head 53 for rotation around its own axis. Specifically, a bearing is installed between the driving shaft 6 and the conical head 53 to make the rotation of the driving shaft 6 smoother. The rotating disc 7 is coaxially fixedly connected to the outer peripheral wall of the driving shaft 6 so as to coaxially rotate with the driving shaft 6 in the cylindrical sleeve 5; In the first direction, the clamping assembly 8 is located at one end of the rotating disc 7 away from the conical head 53; the connecting device includes a plurality of clamping assemblies 8, and the plurality of clamping assemblies 8 are evenly distributed in the circumference of a virtual circle, and the virtual circle is coaxially arranged with the driving shaft 6; the clamping assembly 8 includes a wedge block 81, a driving rod 82, a compression spring 83, an upper clamping rod 84 and a lower clamping rod 85; The wedge block 81 is fixedly connected to the rotating disc 7. The wedge block 81 has a wedge surface 811. The wedge surface 811 is parallel to the first direction. In the circumferential direction of the virtual circle, the wedge surface 811 is inclined from the outer side of the virtual circle to the inner side of the virtual circle. The driving rod 82 is located in the cylindrical sleeve 5, and is arranged parallel to the first direction. The driving rod 82 can move radially along the virtual circle in the cylindrical sleeve 5. The driving rod 82 contacts the wedge surface 811. When the wedge block 81 rotates in the forward direction with the rotating disk 7, it pushes the driving rod 82 to move toward the side away from the driving shaft 6. One end of the compression spring 83 is fixedly connected to the inner wall of the cylindrical sleeve 5, and the other end is fixedly connected to the driving rod 82; The upper clamping rod 84 and the lower clamping rod 85 are both fixedly connected to the driving rod 82, and the lengths of the two rods are arranged parallel to the sliding direction of the driving rod 82; the upper clamping rod 84 is located on the side of the lower clamping rod 85 away from the rotating disc 7; the wall of the cylindrical sleeve 5 is penetrated with an upper guide hole 54 and a lower guide hole 55, the upper clamping rod 84 is penetrated in the upper guide hole 54, and can move along the direction of its own rod length under the guidance of the hole wall of the upper guide hole 54; the lower clamping rod 85 is penetrated in the lower guide hole 55, and can move along the direction of its own rod length under the guidance of the hole wall of the lower guide hole 55; Since the upper clamping rod 84 and the lower clamping rod 85 are both fixedly connected to the driving rod 82, the driving rod 82, the upper clamping rod 84 and the lower clamping rod 85 can slide synchronously along the cylindrical sleeve 5, so that the clamping assembly 8 can be adjusted between the clamping posture and the storage posture; When the clamping assembly 8 is in the storage position, the compression spring 83 is in a normal state, the end of the upper clamping rod 84 away from the driving rod 82 passes through the upper guide hole 54 and extends to the outside of the cylindrical sleeve 5, and the end of the lower clamping rod 85 away from the driving rod 82 is located in the lower guide hole 55; During the process of adjusting the clamping assembly 8 from the storage posture to the clamping posture, it is only necessary to drive the driving rod 82 to move toward the side away from the driving shaft 6, so that the upper clamping rod 84 and the lower clamping rod 85 can be pushed to move synchronously, so that the end of the lower clamping rod 85 passes through the lower guide hole 55, and the upper clamping rod 84 and the lower clamping rod 85 can clamp the support plate 31 to prevent the cylindrical sleeve 5 from sliding along the first direction; in this process, the deformation of the compression spring 83 increases, and the force for pushing the driving rod 82 toward the side of the driving shaft 6 is stored; when the wedge block 81 rotates in the opposite direction with the rotating disk 7, the compression spring 83 will push the driving rod 82 to move toward the side of the driving shaft 6, so that the driving rod 82 is always in contact with the wedge surface 811. When in use, it is only necessary to pass the cylindrical sleeve 5 through the insertion hole 311, overlap the upper clamping rod 84 onto the support plate 31, and then rotate the lower clamping rod 85 outward until the support plate 31 is clamped between the upper clamping rod 84 and the lower clamping rod 85.

[0036] Reference Figure 6 In order to drive the driving shaft 6 to rotate, in some embodiments of the present application, a driving assembly 9 is further included. Each driving shaft 6 is connected with a corresponding driving assembly 9. In the first direction, the driving assembly 9 is located on the side of the upper clamping rod 84 away from the rotating disc 7; the driving assembly 9 includes a first bevel gear 91, a second bevel gear 92, a connecting shaft 93, a handle 94 and a tightening screw 95; The first bevel gear 91 and the second bevel gear 92 are both located in the cylindrical sleeve 5. The first bevel gear 91 is coaxially fixedly connected to the driving shaft 6. The central axis of the second bevel gear 92 is perpendicular to the first direction, and the second bevel gear 92 is meshed with the first bevel gear 91. One end of the connecting shaft 93 is coaxially fixedly connected to the second bevel gear 92, and the other end passes through the wall of the cylindrical sleeve 5 and extends to the outside of the cylindrical sleeve 5. The connecting shaft 93 is rotatably connected to the cylindrical sleeve 5 through a bearing. The handle 94 is located outside the cylindrical sleeve 5 and is fixedly connected to the connecting shaft 93; the fastening screw 95 is passed through the handle 94 and is threadedly connected to the handle 94. The fastening screw 95 passes through the handle 94 and abuts against the cylindrical sleeve 5, so as to fix the handle 94 to the cylindrical sleeve 5; When driving, just unlock the tightening screw 95 and turn the handle 94. The handle 94 will drive the driving shaft 6 to rotate through the first bevel gear 91 and the second bevel gear 92. The driving shaft 6 will drive the wedge block 81 to rotate, so as to push the clamping assembly 8 to move and clamp the support plate 31.

[0037] The embodiment of the present application discloses a construction method of a cantilever floor support frame for building construction, which is constructed by using the aforementioned cantilever floor support frame for building construction, and comprises the following steps: S1: Assemble and embed the embedded parts 1 such as the first corbel 11 and the second corbel 12 to a preset position; S2: supporting the formwork, pouring concrete at the position where the embedded part 1 is buried and curing; S3: Remove the mold and check whether the embedded quality of embedded part 1 and the concrete strength meet the requirements; S4: Assembling the support unit 2 on the ground; S5: hoisting the supporting unit 2, and installing the locking member 23 between the adjusting seat 22 and the horizontal rod 21; S6: Install the pre-stressed I-beam on the support frame, and install the through-hole hydraulic jack between the pre-stressed I-beam and the fixed point, which is a point fixed to the ground or a certain part of the building; then, perform load detection; S61: Check whether the jack and oil pump are properly connected and calibrated, and check whether the pressure value calculation is correct; if correct, proceed to the next step; S62: Loading program; Before formal loading, preload with the first level load, and the preload holding time is 20 minutes; preload is repeated twice, and formal loading is carried out after 60 minutes; According to the first level of load, two hydraulic jacks are used to load the support frame symmetrically and evenly; the load holding time is 60 minutes; when the structural displacement reaches relative stability, the next load stage is entered; within the same level of load, if the displacement increment of the measuring point with the largest structural displacement in the last 5 minutes is less than 15% of the displacement increment in the first 5 minutes, the structural displacement is considered to be relatively stable; The second to fourth level loads are applied in sequence, and the loads increase step by step; After each level of load is completed, deformation observations are carried out and detailed records are made.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cantilever floor support frame for building construction, characterized in that: include: Support platform (3); as well as, The embedded component (1) comprises: first corbel (11); and, A second corbel (12), wherein the second corbel (12) and the first corbel (11) are sequentially distributed in a first direction, and the second corbel (12) is located on a side of the first corbel (11) away from the supporting platform (3); Also includes: A supporting unit (2), wherein the supporting unit (2) and the supporting platform (3) are sequentially distributed in a first direction, and the supporting unit (2) comprises: a horizontal rod (21), wherein the horizontal rod (21) is arranged parallel to the second direction, and one end of the horizontal rod (21) is fixedly connected to the first corbel (11), and the supporting platform (3) is arranged on the horizontal rod (21); An adjustment seat (22), the adjustment seat (22) being slidably connected to the horizontal rod (21) along a second direction; a locking member (23), the locking member (23) being connected between the adjustment seat (22) and the horizontal rod (21) so as to fix the adjustment seat (22) and the horizontal rod (21); and A diagonal bracing member (24), one end of the diagonal bracing member (24) is rotatably connected to the adjustment seat (22) via a first hinge axis, and the other end is rotatably connected to the second bracket (12) via a second hinge axis, and the first hinge axis and the second hinge axis are both parallel to the third direction; an angle less than 90° is formed between the diagonal bracing member (24) and the horizontal member (21).

2. A cantilever floor support frame for building construction according to claim 1, characterized in that: A limiting hole (221) is formed on the adjustment seat (22) along the second direction, and the horizontal rod (21) is passed through the limiting hole (221) along the second direction.

3. A cantilever floor support frame for building construction according to claim 2, characterized in that: The horizontal rod (21) is provided with a first locking hole (211); The adjusting seat (22) is provided with a second locking hole (222), the second locking hole (222) is provided on a side wall of the adjusting seat (22) and is communicated with the limiting hole (221); The locking member (23) is inserted into the second locking hole (222) and the first locking hole (211).

4. A cantilever floor support frame for building construction according to claim 3, characterized in that: In the second direction, a plurality of first locking holes (211) are distributed at intervals.

5. A cantilever floor support frame for building construction according to claim 4, characterized in that: Along the third direction, a plurality of the supporting units (2) are sequentially distributed at intervals.

6. A cantilever floor support frame for building construction according to claim 5, characterized in that: It also comprises a connecting rod (25), wherein the connecting rod (25) is fixedly connected between the diagonal support rods (24) in two adjacent supporting units (2).

7. A cantilever floor support frame for building construction according to any one of claims 1 to 6, characterized in that: The supporting platform (3) comprises: a support plate (31), the support plate (31) being arranged perpendicular to the first direction, and the support plate (31) being located on a side of the first corbel (11) away from the second corbel (12); and, A transverse support bar (32), wherein the transverse support bar (32) is arranged parallel to the third direction; in the first direction, the transverse support bar (32) is fixedly connected between the support plate (31) and the horizontal rod (21).

8. A cantilever floor support frame for building construction according to claim 7, characterized in that: The support platform (3) further comprises: A longitudinal support bar (33), wherein in a first direction, the longitudinal support bar (33) is fixedly connected between the transverse support bar (32) and the support plate (31); The longitudinal support strip (33) is arranged parallel to the second direction.

9. A cantilever floor support frame for building construction according to claim 8, characterized in that: The transverse support bar (32) and / or the longitudinal support bar (33) are I-beams.

10. A construction method for a cantilever floor support frame for building construction, characterized in that: The construction of the cantilever floor support frame for building construction according to any one of claims 1 to 9 comprises the following steps: S1: Assemble and embed the embedded parts (1) such as the first corbel (11) and the second corbel (12) to a preset position; S2: supporting the formwork, pouring concrete at the position where the embedded part (1) is buried, and curing; S3: Remove the formwork and check whether the embedded parts (1) and the embedded quality and concrete strength meet the requirements; S4: Assembling the supporting unit (2) on the ground; S5: hoisting the supporting unit (2), and installing a locking member (23) between the adjusting seat (22) and the horizontal rod (21); S6: Install the pre-stressed I-beam on the support frame, and install the through-hole hydraulic jack between the pre-stressed I-beam and the fixed point, which is a point fixed to the ground or a certain part of the building; then, perform load detection; S61: Check whether the jack and oil pump are properly connected and calibrated, and check whether the pressure value calculation is correct; if correct, proceed to the next step; S62: Loading program; Before formal loading, preload with the first level load, and the preload holding time is 20 minutes; The preloading was repeated twice, and the formal loading was carried out after 60 minutes; According to the first level of load, two hydraulic jacks are used to load the support frame symmetrically and evenly; the load holding time is 60 minutes; when the structural displacement reaches relative stability, the next load stage is entered; within the same level of load, if the displacement increment of the measuring point with the largest structural displacement in the last 5 minutes is less than 15% of the displacement increment in the first 5 minutes, it is considered that the structural displacement has reached relative stability; The second to fourth level loads are applied in sequence, and the loads increase step by step; After each level of load is completed, deformation observations are carried out and detailed records are made.

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