Creeping formwork attachment structure in cavity area of core tube of super high-rise building

Abstract

The invention relates to the technical field of constructional engineering, in particular to a climbing formwork attachment structure for a core tube cavity area of a super high-rise building. The climbing formwork attachment structure for the core tube cavity area of the super high-rise building comprises frame beams, the cavity area is formed between the frame beams and a laminate, a constructional column is arranged in the cavity area, the two ends of the constructional column are fixedly connected with the frame beams at the upper end and the lower end respectively, and the constructional column, the frame beams and the laminate are integrally formed in a pouring mode; and the creeping formwork frame is fixedly connected with the constructional column through the wall attaching assembly. The constructional columns serve as attachment points of the creeping formwork frame, the attachment problem of the creeping formwork frame under the condition that no core tube side wall exists is solved, and the cost increasing problems such as reinforcement increasing and concrete mark increasing caused by traditional construction auxiliary beams are solved. Meanwhile, as the constructional columns, the frame beams and the laminates are integrally poured and formed, the overall structure is more stable, various loads in the construction process of the creeping formwork frame can be better borne, and the safety and stability of construction are ensured.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a climbing formwork attachment structure for the hollow area of ​​the core tube of a super high-rise building. Background Technology

[0002] The steel frame and core tube structure is a widely used composite structure in super high-rise buildings. During construction, the core tube structure and the outer steel frame can be built in parallel, shortening the construction period and creating a "core tube first, outer frame later" workflow, significantly reducing the overall construction time. The use of climbing formwork (climbing formwork) for the core tube is a crucial and efficient technology in super high-rise buildings. It perfectly matches the characteristics of the core tube structure, bringing many significant advantages: fast construction speed, high safety performance, excellent construction quality, reduced material and tower crane usage, and significantly improved safety and civilized construction practices.

[0003] In super high-rise buildings, climbing formwork is usually attached to the side wall of the core tube. However, due to changes in the function of some floors, there is no core tube side wall, resulting in a lack of attachment points for the climbing formwork. To address this issue, existing technology provides a construction auxiliary beam, which increases the height of the original frame beam to provide an attachment point for the climbing formwork. However, the original frame beam cannot meet the load-bearing capacity of the wall-attached structure, requiring additional reinforcement or a higher concrete grade to improve the load-bearing capacity, thus increasing construction costs. Furthermore, the auxiliary beam needs to be poured together with the original frame beam, and the steel reinforcement will be cut during later demolition, which may affect the load-bearing capacity of the original structure. Summary of the Invention

[0004] This invention provides a climbing formwork attachment structure for the hollow area of ​​the core tube of a super high-rise building, which solves the problem that the original frame beams cannot meet the load-bearing capacity of the wall-attached structure, requiring additional reinforcement or increased concrete grade to improve the load-bearing capacity, which increases construction costs. Furthermore, the auxiliary beams need to be poured together with the original frame beams, and the reinforcement will be cut during later demolition, affecting the load-bearing capacity of the original structure.

[0005] This invention provides a climbing formwork attachment structure for the void area of ​​the core tube of a super high-rise building, comprising: A frame beam forms a void area between the frame beam and the floor slab. A structural column is provided in the void area. The two ends of the structural column are fixedly connected to the upper and lower ends of the frame beam, respectively. The structural column, the frame beam and the floor slab are integrally cast. The climbing formwork is fixedly connected to the structural column via a wall-mounted component.

[0006] Beneficial effects: As attachment points for the climbing formwork, structural columns not only solve the problem of attachment for the climbing formwork in the absence of a core tube sidewall, but also avoid the cost increases associated with traditional auxiliary beams, such as requiring additional reinforcement and higher concrete grades. Furthermore, because the structural columns are integrally cast with the frame beams and floor slabs, the overall structure is more stable and can better withstand various loads during the climbing formwork construction process, ensuring the safety and stability of the construction.

[0007] In one alternative embodiment, the wall-mounted assembly includes a fixing structure and a fixing sleeve. The fixing structure passes through the structural column, and one end of the fixing structure extending toward the climbing formwork extends out of the structural column and is fixedly connected to the fixing sleeve. The fixing sleeve is fixedly connected to the climbing formwork.

[0008] Beneficial effects: The fixed structure and fixing sleeve enable the wall-mounted components to securely connect the climbing formwork to the structural columns, ensuring the stability and safety of the climbing formwork during construction.

[0009] In one optional embodiment, the fixing structure includes a through-wall screw and a wall mount. The through-wall screw passes through the structural column, with both ends of the through-wall screw extending out of the structural column. One end of the through-wall screw facing the climbing formwork frame is fixedly connected to the wall mount, and the wall mount is fixedly connected to the fixing sleeve. The other end of the through-wall screw is fixedly connected to the structural column by a nut.

[0010] Beneficial effects: The combined structure of the through-wall bolts and wall-mounted brackets allows the wall-mounted components to evenly distribute the load when bearing the load of the climbing formwork, avoiding localized stress concentration and thus improving the stability and durability of the entire structure. At the same time, the fixing method of the nuts facilitates installation and disassembly during construction, improving construction efficiency.

[0011] In one optional embodiment, a sleeve is pre-embedded in the structural column, and the through-wall bolt passes through the sleeve in the structural column.

[0012] Beneficial effects: Through-wall bolts are installed in structural columns through sleeves, which can protect the structural columns from direct wear by the through-wall bolts, and at the same time, facilitate the installation and disassembly of the through-wall bolts.

[0013] In one alternative embodiment, the sleeve is welded and fixed to the reinforcing steel bars inside the structural column.

[0014] Beneficial effects: The sleeve is welded and fixed to the steel bars inside the structural column to prevent the sleeve from falling out of the designated position during pouring, thereby enhancing the stability of the sleeve and ensuring the stability and reliability of the through-wall bolts during installation. This not only improves the connection strength between the sleeve and the structural column, but also effectively prevents the sleeve from shifting or loosening during subsequent construction, providing a strong guarantee for the safe use of the entire climbing formwork attachment structure.

[0015] In one alternative embodiment, the wall mount is fixedly connected to the fixing sleeve by fasteners.

[0016] Beneficial effects: The wall mount is securely connected to the fixing sleeve via fasteners, forming a tight and stable connection that ensures the overall stability of the wall mount assembly when bearing the load of the climbing formwork. At the same time, the fasteners facilitate installation and adjustment during construction, improving construction efficiency.

[0017] In one optional embodiment, the fastener is an anti-loosening bolt, the wall mount has a first connecting portion, the fixing sleeve has a second connecting portion, and the anti-loosening bolt sequentially passes through and connects the first connecting portion and the second connecting portion.

[0018] Beneficial effects: The anti-loosening bolts ensure the stability and reliability of the connection between the wall mount and the fixing sleeve. Moreover, the installation and disassembly process is relatively simple, making it easy for construction personnel to operate and improving construction efficiency.

[0019] In one alternative embodiment, the nut comprises a thin nut and a thick nut, the thin nut being disposed on the side of the thick nut away from the structural post, and the threads of the thin nut and the thick nut having opposite directions.

[0020] Beneficial effects: The thin and thick nuts have opposite thread directions, creating a locking force between them when tightened. This effectively prevents the nuts from loosening or falling off under load, further enhancing the stability and safety of the wall-mounted assembly. The double nuts also facilitate installation and adjustment during construction, improving construction efficiency.

[0021] In one optional embodiment, a washer is also fitted onto the through-wall bolt, and the washer is disposed between the thick nut and the surface of the structural column.

[0022] Beneficial effects: On the one hand, the pad can increase the contact area between the thick nut and the surface of the structural column, disperse the pressure of the thick nut on the surface of the structural column, and prevent the surface of the structural column from being damaged due to excessive local stress. On the other hand, the pad can also play a certain buffering role, reduce the impact force on the surface of the structural column during the tightening process, and protect the structural integrity of the structural column.

[0023] In one optional embodiment, the fixing sleeve has a connecting groove, the climbing formwork frame has a connecting protrusion, the two side walls of the connecting groove are provided with a first connecting hole, the connecting protrusion is provided with a second connecting hole, when the connecting protrusion is disposed in the connecting groove, the first connecting hole and the second connecting hole correspond to each other, and the reinforcing member passes through the first connecting hole and the second connecting hole in sequence.

[0024] Beneficial effects: By opening the first connecting hole and the second connecting hole in the connecting groove and the connecting protrusion respectively, not only is rapid positioning and stable connection between the climbing formwork and the fixed sleeve achieved, but construction loads can also be effectively distributed to avoid local stress concentration. At the same time, it facilitates subsequent disassembly and maintenance, thus improving the practicality and safety of the entire climbing formwork attachment structure. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a climbing formwork attachment structure for the void area of ​​the core tube of a super high-rise building, according to an embodiment of the present invention. Figure 2 This is a schematic diagram of a structural column according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the wall-mounted component according to an embodiment of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the wall-mounted component according to an embodiment of the present invention. Figure 2 .

[0027] Explanation of reference numerals in the attached figures: 1. Frame beam; 2. Structural column; 3. Climbing formwork; 31. Connecting protrusion; 4. Wall-mounted component; 41. Fixing structure; 411. Through-wall bolt; 412. Wall mount; 4121. First connecting part; 42. Fixing sleeve; 421. Second connecting part; 422. Connecting groove; 423. First connecting hole; 5. Sleeve; 6. Anti-loosening bolt; 7. Thin nut; 8. Thick nut; 9. Washer plate; 10. Reinforcing component. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.

[0030] According to an embodiment of the present invention, a climbing formwork attachment structure for the void area of ​​the core tube of a super high-rise building is provided, comprising: a frame beam 1 and a climbing formwork frame 3. A void area is formed between the frame beam 1 and the floor slab, and a structural column 2 is provided within the void area. The two ends of the structural column 2 are fixedly connected to the upper and lower ends of the frame beam 1, respectively. The structural column 2, the frame beam 1, and the floor slab are integrally cast. The climbing formwork frame 3 is fixedly connected to the structural column 2 via a wall-mounting component 4.

[0031] Specifically, structural columns 2 are cast in the void area between frame beam 1 and the floor slab, serving as the attachment structure for climbing formwork 3. The climbing formwork 3 is fixedly connected to the structural columns 2 via wall-mounted components 4. The structural columns 2, frame beam 1, and floor slab are cast integrally, eliminating the need for secondary casting. These components form a unified structure, allowing the structural columns 2 to withstand the loads generated by the climbing formwork 3. Furthermore, because the structural columns 2 are integrated with the frame beam 1 and floor slab, they can transfer the loads they bear to the frame beam 1 and floor slab, effectively improving their load-bearing capacity. Moreover, after construction is completed, the structural columns 2 can be easily removed using a water drill without affecting the original structural load-bearing function.

[0032] The structural column 2 serves as the attachment point for the climbing formwork 3, which not only solves the attachment problem of the climbing formwork 3 in the absence of a core tube sidewall, but also avoids the cost increases caused by traditional construction auxiliary beams, such as the need for additional reinforcement and higher concrete grades. Furthermore, since the structural column 2 is integrally cast with the frame beam 1 and the floor slab, the overall structure is more stable and can better withstand various loads during the construction of the climbing formwork 3, ensuring the safety and stability of the construction.

[0033] In one embodiment, the wall-mounted component 4 includes a fixing structure 41 and a fixing sleeve 42. The fixing structure 41 passes through the structural column 2, and one end of the fixing structure 41 extends out of the structural column 2 toward the climbing formwork 3 and is fixedly connected to the fixing sleeve 42. The fixing sleeve 42 is fixedly connected to the climbing formwork 3.

[0034] Specifically, such as Figure 3 As shown, the fixing structure 41 is inserted into the structural column 2, with one end of it extending out of the structural column 2 toward the climbing formwork 3 and being securely connected to the fixing sleeve 42, while the other side of the fixing sleeve 42 is tightly fixed to the climbing formwork 3.

[0035] The fixing structure 41 and the fixing sleeve 42 enable the wall-mounted component 4 to securely connect the climbing formwork 3 to the structural column 2, ensuring the stability and safety of the climbing formwork 3 during construction.

[0036] In one embodiment, the fixing structure 41 includes a through-wall screw 411 and a wall mount 412. The through-wall screw 411 passes through the structural column 2, and both ends of the through-wall screw 411 extend out of the structural column 2. One end of the through-wall screw 411 facing the climbing formwork 3 is fixedly connected to the wall mount 412, and the wall mount 412 is fixedly connected to the fixing sleeve 42. The other end of the through-wall screw 411 is fixedly connected to the structural column 2 by a nut.

[0037] Specifically, such as Figure 4 As shown, the through-wall screw 411 penetrates the structural column 2, with both ends extending out of the surface of the structural column 2. One end is tightly connected to the wall mount 412, which is then fixed to the fixing sleeve 42, forming a stable connection structure. The other end of the through-wall screw 411 is firmly fixed to the structural column 2 by a nut, ensuring that the entire wall mounting assembly 4 will not loosen.

[0038] The combined structure of the through-wall bolt 411 and the wall mount 412 allows the wall mount component 4 to evenly distribute the force when bearing the load of the climbing formwork 3, avoiding local stress concentration and thus improving the stability and durability of the entire structure. At the same time, the fixing method of the nut facilitates installation and disassembly during construction, improving construction efficiency.

[0039] In one embodiment, a sleeve 5 is pre-embedded inside the structural column 2, and the through-wall bolt 411 passes through the sleeve 5 and is installed in the structural column 2.

[0040] Specifically, such as Figure 2 and Figure 4 As shown, before the structural column 2 is poured, the sleeve 5 is placed in a predetermined position. After the structural column 2 is poured, the sleeve 5 is firmly embedded in the structural column 2.

[0041] The through-wall bolt 411 is installed in the structural column 2 through the sleeve 5, which can protect the structural column 2 from direct wear of the through-wall bolt 411. At the same time, it also facilitates the installation and disassembly of the through-wall bolt 411.

[0042] In one embodiment, the sleeve 5 is welded and fixed to the reinforcing steel bar inside the structural column 2.

[0043] Specifically, after the sleeve 5 is placed in place, it is welded to the reinforcing steel (not shown) inside the structural column 2, so that the sleeve 5 and the structural column 2 form a whole. This prevents the sleeve 5 from falling out of its designated position during pouring, enhances the stability of the sleeve 5, and thus ensures the stability and reliability of the through-wall bolt 411 during installation. The welding and fixing of the sleeve 5 to the reinforcing steel inside the structural column 2 not only improves the connection strength between the sleeve 5 and the structural column 2, but also effectively prevents the sleeve 5 from shifting or loosening during subsequent construction, providing a strong guarantee for the safe use of the entire climbing formwork attachment structure.

[0044] In one embodiment, the wall mount 412 is fixedly connected to the fixing sleeve 42 by fasteners.

[0045] Specifically, such as Figure 4 As shown, the wall mount 412 is fixedly connected to the fixing sleeve 42 by fasteners, so that a tight and stable connection can be formed between the wall mount 412 and the fixing sleeve 42, ensuring the overall stability of the wall mount assembly 4 when bearing the load of the climbing formwork 3. At the same time, the fasteners facilitate installation and adjustment during construction, improving construction efficiency.

[0046] In one embodiment, the fastener is an anti-loosening bolt 6, the wall mount 412 has a first connecting portion 4121, the fixing sleeve 42 has a second connecting portion 421, and the anti-loosening bolt 6 sequentially passes through and connects the first connecting portion 4121 and the second connecting portion 421.

[0047] Specifically, such as Figure 4 As shown, the wall mount 412 has a vertical connecting part and a first connecting part 4121. The vertical connecting part is attached to the surface of the structural column 2 through a through-wall bolt 411. The first connecting part 4121 is horizontally arranged, and one end of the first connecting part 4121 is fixedly connected to the vertical connecting part. The fixing sleeve 42 has a second connecting part 421, which is arranged opposite to the first connecting part 4121. Both the first connecting part 4121 and the second connecting part 421 are provided with connecting holes. The anti-loosening bolt 6 passes through the connecting holes of the second connecting part 421 and the first connecting part 4121 in sequence, and the second connecting part 421 and the first connecting part 4121 are fixedly connected by tightening the nut.

[0048] The anti-loosening bolt 6 ensures the stability and reliability of the connection between the wall mount 412 and the fixing sleeve 42. Moreover, its installation and disassembly process is relatively simple, which is convenient for construction personnel to operate and improves construction efficiency.

[0049] In one embodiment, the nut includes a thin nut 7 and a thick nut 8, with the thin nut 7 disposed on the side of the thick nut 8 away from the structural post 2, and the threads of the thin nut 7 and the thick nut 8 having opposite directions.

[0050] Specifically, such as Figure 4 As shown, a thick nut 8 and a thin nut 7 are sequentially fitted onto one end of the through-wall screw 411 that extends out of the structural column 2. The thick nut 8 is close to the surface of the structural column 2, while the thin nut 7 is located outside the thick nut 8, and the thread directions of the thin nut 7 and the thick nut 8 are opposite.

[0051] The thin nut 7 and the thick nut 8 have opposite thread directions, which creates a locking force between them when tightening. This effectively prevents the nuts from loosening or falling off under load, further enhancing the stability and safety of the wall-mounted component 4. The double nuts also facilitate installation and adjustment during construction, improving construction efficiency.

[0052] In one embodiment, a pad 9 is also fitted on the through-wall bolt 411, and the pad 9 is disposed between the thick nut 8 and the surface of the structural column 2.

[0053] Specifically, such as Figure 4 As shown, a washer 9 is added between the thick nut 8 and the surface of the structural column 2 at the end of the through-wall bolt 411 that extends out of the surface of the structural column 2. The washer 9 can increase the contact area between the thick nut 8 and the surface of the structural column 2, disperse the pressure of the thick nut on the surface of the structural column 2, and prevent the surface of the structural column 2 from being damaged due to excessive local stress. On the other hand, the washer 9 can also play a certain buffering role, reducing the impact force on the surface of the structural column 2 during the tightening process of the nut, and protecting the structural integrity of the structural column 2.

[0054] In one embodiment, the fixing sleeve 42 has a connecting groove 422, the climbing formwork frame 3 has a connecting protrusion 31, the two side walls of the connecting groove 422 are provided with a first connecting hole 423, the connecting protrusion 31 is provided with a second connecting hole, when the connecting protrusion 31 is set in the connecting groove 422, the first connecting hole 423 and the second connecting hole correspond to each other, and the reinforcement 10 passes through the first connecting hole 423 and the second connecting hole in sequence.

[0055] Specifically, such as Figure 4As shown, the fixing sleeve 42 is provided with a connecting groove 422, and its two side walls are symmetrically provided with first connecting holes 423. The climbing formwork frame 3 is provided with a connecting protrusion 31 at the corresponding position. The size of the connecting protrusion 31 matches the connecting groove 422 and can be inserted into it. When the connecting protrusion 31 is fully inserted into the connecting groove 422, the first connecting hole 423 is precisely aligned with the second connecting hole (not shown) on the connecting protrusion 31. At this time, the reinforcing member 10 is passed through the first connecting hole 423 and the second connecting hole in sequence, so that the connecting groove 422 and the connecting protrusion 31 can be connected, and the fixing sleeve 42 and the climbing formwork frame 3 can be connected.

[0056] By opening the first connecting hole 423 and the second connecting hole in the connecting groove 422 and the connecting protrusion 31 respectively, not only is the rapid positioning and stable connection between the climbing formwork frame 3 and the fixed sleeve 42 realized, but the construction load can also be effectively distributed to avoid local stress concentration. At the same time, it is convenient for subsequent disassembly and maintenance, thus improving the practicality and safety of the entire climbing formwork attachment structure.

[0057] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A climbing formwork attachment structure for the hollow area of ​​the core tube of a super high-rise building, characterized in that, include: A frame beam (1) is formed between the frame beam (1) and the floor slab. A structural column (2) is provided in the hollow area. The two ends of the structural column (2) are fixedly connected to the upper and lower ends of the frame beam (1) respectively. The structural column (2), the frame beam (1) and the floor slab are integrally cast. Climbing formwork (3), which is fixedly connected to the structural column (2) via wall-mounted components (4).

2. The climbing formwork attachment structure for the hollow area of ​​the core tube of a super high-rise building according to claim 1, characterized in that, The wall-mounted component (4) includes a fixing structure (41) and a fixing sleeve (42). The fixing structure (41) passes through the structural column (2). One end of the fixing structure (41) extends out of the structural column (2) toward the climbing formwork (3) and is fixedly connected to the fixing sleeve (42). The fixing sleeve (42) is fixedly connected to the climbing formwork (3).

3. The climbing formwork attachment structure for the void area of ​​the core tube of a super high-rise building according to claim 2, characterized in that, The fixing structure (41) includes a through-wall screw (411) and a wall mount (412). The through-wall screw (411) passes through the structural column (2). Both ends of the through-wall screw (411) extend out of the structural column (2). One end of the through-wall screw (411) facing the climbing formwork frame (3) is fixedly connected to the wall mount (412). The wall mount (412) is fixedly connected to the fixing sleeve (42). The other end of the through-wall screw (411) is fixedly connected to the structural column (2) by a nut.

4. The climbing formwork attachment structure for the void area of ​​the core tube of a super high-rise building according to claim 3, characterized in that, The structural column (2) has a pre-embedded sleeve (5), and the through-wall screw (411) passes through the sleeve (5) in the structural column (2).

5. The climbing formwork attachment structure for the void area of ​​the core tube of a super high-rise building according to claim 4, characterized in that, The sleeve (5) is welded and fixed to the steel bars inside the structural column (2).

6. The climbing formwork attachment structure for the void area of ​​the core tube of a super high-rise building according to claim 3, characterized in that, The wall mount (412) is fixedly connected to the fixing sleeve (42) by fasteners.

7. The climbing formwork attachment structure for the void area of ​​the core tube of a super high-rise building according to claim 6, characterized in that, The fastener is an anti-loosening bolt (6), the wall mount (412) has a first connecting part (4121), the fixing sleeve (42) has a second connecting part (421), and the anti-loosening bolt (6) sequentially passes through and connects the first connecting part (4121) and the second connecting part (421).

8. The climbing formwork attachment structure for the void area of ​​the core tube of a super high-rise building according to claim 3, characterized in that, The nut includes a thin nut (7) and a thick nut (8), the thin nut (7) being disposed on the side of the thick nut (8) away from the structural column (2), and the threads of the thin nut (7) and the thick nut (8) being opposite.

9. The climbing formwork attachment structure for the void area of ​​the core tube of a super high-rise building according to claim 8, characterized in that, A washer (9) is also fitted on the through-wall screw (411), and the washer (9) is placed between the thick nut (8) and the surface of the structural column (2).

10. The climbing formwork attachment structure for the void area of ​​the core tube of a super high-rise building according to any one of claims 2 to 9, characterized in that, The fixing sleeve (42) has a connecting groove (422), the climbing frame (3) has a connecting protrusion (31), the two side walls of the connecting groove (422) are provided with a first connecting hole (423), the connecting protrusion (31) is provided with a second connecting hole, when the connecting protrusion (31) is set in the connecting groove (422), the first connecting hole (423) and the second connecting hole correspond to each other, and the reinforcement (10) passes through the first connecting hole (423) and the second connecting hole in sequence.

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