Cantilever floor system connecting structure

Abstract

The utility model relates to the technical field of building structures, in particular to a cantilever floor system connecting structure which comprises an elastic connecting structure, a steel pull rod and a tensioning structure, the upper end of the steel pull rod is fixedly connected with an upper floor through the elastic connecting structure, and the lower end of the steel pull rod is fixedly connected with a lower floor through the tensioning structure. The steel pull rod is in a tension state; the design deformation capacity of the elastic connecting structure is high, the working length range is large, the tension state of the steel pull rod can be kept under different load conditions, and therefore the situation that the steel pull rod is pressed, bent and withdrawn from working due to uneven vertical deformation of the structure caused by load changes is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building structures, in particular to a cantilever floor connection structure. BACKGROUND

[0002] With the continuous development of building structure design, cantilever floor, as a common building form, is widely used in modern high-rise buildings. Cantilever floor has the advantages of large span and column-free space, which can provide more use space and higher aesthetic effect for buildings. However, due to the special design of cantilever floor, the stability and comfort of its structure often face great challenges.

[0003] In the prior art, the vibration problem of cantilever floor has always been a key problem to be solved in design. Due to the large span of cantilever floor, it is easy to produce vibration caused by human walking, wind load, etc. This vibration may affect the comfort of building use, and even cause fatigue damage to the structure. Therefore, in the prior art, methods such as increasing beam section, setting damper (TMD) are often used to improve the stability and comfort of the structure.

[0004] However, these methods often have certain shortcomings. For example, increasing the beam section will occupy a large space and increase the cost of the building; installing damper (TMD) is effective, but the cost is high and it will occupy a certain space, affecting the layout of other facilities. In addition, there are some problems in the design of the connection structure in the prior art, such as large vibration transmission effect, lack of effective adjustment mechanism, etc. Therefore, how to provide an economical, effective and easy-to-install solution to enhance the comfort and stability of cantilever floor has become an important issue in the current technology. SUMMARY

[0005] The present application solves the problem of large vibration, poor comfort and insufficient structural stability of the existing cantilever floor structure under dynamic load, and aims to provide a cantilever floor connection structure, which realizes the maintenance of steel pull rod in tension state through the reasonable design of elastic connection structure and tensioning structure, thereby effectively reducing the vibration amplitude of cantilever floor, improving the use comfort, enhancing the stability of the structure, and having good adjustability and economy.

[0006] The present application is realized by the following technical scheme:

[0007] A cantilever floor connection structure, comprising: an elastic connection structure, a steel pull rod and a tensioning structure, the upper end of the steel pull rod is fixedly connected with the upper floor through the elastic connection structure, the lower end of the steel pull rod is fixedly connected with the lower floor through the tensioning structure, and the steel pull rod is in tension state.

[0008] Specifically, the elastic connecting structure comprises an upper connecting seat, a connecting sleeve and an elastic assembly, the upper connecting seat is fixedly connected with the upper floor, the upper end of the connecting sleeve is hinged to the upper connecting seat, and the elastic assembly is arranged in the connecting sleeve and applies an upward force to the steel pull rod so that the steel pull rod is kept in tension.

[0009] Specifically, the tensioning structure comprises a lower connecting seat, a tensioning rod and a tensioner, the lower connecting seat is fixedly connected with the lower floor, the lower end of the tensioning rod is hinged to the lower connecting seat, and the lower end of the steel pull rod is connected with the upper end of the tensioning rod through the tensioner, and the tensioner applies a downward pre-tension to the steel pull rod.

[0010] Specifically, the elastic assembly comprises a spring, a fixed ring-shaped baffle and a movable ring-shaped baffle, the outer edge of the fixed ring-shaped baffle is fixedly connected with the lower end of the connecting sleeve, the spring is arranged in the connecting sleeve, the lower end of the spring is pressed against the fixed ring-shaped baffle, the movable ring-shaped baffle is arranged above the spring, and the upper end of the steel pull rod is threadedly connected with a fastening nut through the fixed ring-shaped baffle, a central hole of the spring and the movable ring-shaped baffle.

[0011] Optionally, the outer diameter of the fastening nut is greater than the inner diameter of the movable ring-shaped baffle, and the outer diameter of the steel pull rod is smaller than the inner diameter of the movable ring-shaped baffle and the inner diameter of the fixed ring-shaped baffle.

[0012] Optionally, the working length of the spring is greater than the limit compression length of the spring and smaller than the free length of the spring, and the working length is the effective compression or elongation range of the spring in the normal working state.

[0013] Specifically, the tensioner is internally provided with an upper segment internal thread and a lower segment internal thread, and the thread rotation direction of the upper segment internal thread is opposite to that of the lower segment internal thread.

[0014] Optionally, the lower end of the steel pull rod is provided with an external thread matched with the upper segment internal thread, and the upper end of the tensioning rod is provided with an external thread matched with the lower segment internal thread.

[0015] Specifically, the outer side surface of the tensioner is provided with an adjusting interface for driving the tensioner to rotate.

[0016] A cantilever floor connecting structure comprises an elastic connecting structure, a steel pull rod and a tensioning structure, the upper end of the steel pull rod is fixedly connected with an upper floor through the tensioning structure, the lower end of the steel pull rod is fixedly connected with a lower floor through the elastic connecting structure, and the steel pull rod is kept in tension.

[0017] Compared with the prior art, the present application has the following advantages and beneficial effects:

[0018] The overhanging floor connection structure of the present application comprises an elastic connection structure, a steel pull rod and a tensioning structure. The upper end of the steel pull rod is fixedly connected with the upper floor through the elastic connection structure, and the lower end is fixedly connected with the lower floor through the tensioning structure, so as to ensure that the steel pull rod is always in tension;

[0019] The elastic connection structure in the present application has strong deformation capacity and a large working length range, and can maintain the tension state of the steel pull rod under different load conditions, thereby avoiding the compression bending of the steel pull rod due to uneven vertical deformation of the structure caused by load changes. The design of the tensioner enables the pre-tension of the steel pull rod to be adjusted as needed, further enhancing the tensile capacity of the steel pull rod, making the overhanging floor more stable when bearing external excitation load, reducing the vibration amplitude of the structure, and thus effectively improving the use comfort. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the general description of the application given above, and the detailed description of the embodiments given below, serve to explain the principles of the present application. These drawings should not be considered limiting in scope of the embodiments of the present application, as the present application can be implemented across a broad range of embodiments.

[0021] Figure 1 is a structural schematic diagram of an overhanging floor connection structure according to the present application.

[0022] Figure 2 is a structural schematic diagram of an elastic connection structure according to the present application.

[0023] Figure 3 is a structural schematic diagram of a tensioning structure according to the present application.

[0024] Figure 4 is a simplified diagram of a basic model according to the present application.

[0025] Figure 5 is a simplified schematic diagram without spring according to the present application.

[0026] Figure 6 is a simplified schematic diagram of an overhanging floor connection structure according to the present application.

[0027] Reference signs: 1-elastic connection structure, 2-steel pull rod, 3-tensioning structure, 4-upper connecting seat, 5-moving ring-shaped blocking piece, 6-connecting sleeve, 7-spring, 8-tensioning rod, 9-lower connecting seat, 10-tensioner, 11-upper floor, 12-lower floor. DETAILED DESCRIPTION

[0028] In order to make the objects, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the related content and not limit the present application.

[0029] It should be further noted that, for the convenience of description, only the parts related to the present application are shown in the drawings.

[0030] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] Embodiment one

[0034] As shown in Figure 1 , Figure 2 and Figure 3 , a cantilever floor connection structure is provided, mainly including three core parts: elastic connection structure 1, steel pull rod 2 and tensioning structure 3. These parts can ensure that the steel pull rod 2 is always in tension state through mutual cooperation, avoid structural deformation caused by load change, and effectively improve the comfort of the floor.

[0035] The upper end of the steel pull rod 2 is fixedly connected with the upper floor 11 through the elastic connection structure 1, and the lower end of the steel pull rod 2 is fixedly connected with the lower floor 12 through the tensioning structure 3, and the steel pull rod 2 is in tension state.

[0036] The steel tie rod 2 serves to connect the upper floor 11 and the lower floor 12 and bear the main tensile force in the entire cantilever floor structure. The upper end of the steel tie rod 2 is fixedly connected to the upper floor 11 through the elastic connection structure 1, and the lower end is fixedly connected to the lower floor 12 through the tensioning structure 3. The steel tie rod 2 is always in a tensile state, which means it bears a certain tensile force, thereby maintaining the stability of the floor structure.

[0037] The main function of the elastic connection structure 1 is to maintain the tensile state of the steel tie rod 2 and avoid its relaxation or loss of stability due to load changes. The elastic connection structure 1 includes an upper connecting seat 4, a connecting sleeve 6, and an elastic component. The upper connecting seat 4 is fixedly connected to the upper floor 11, the upper end of the connecting sleeve 6 is hinged to the upper connecting seat 4, and the elastic component is arranged in the connecting sleeve 6. The elastic component exerts an upward force on the steel tie rod 2, keeping it in a tensile state.

[0038] The hinge design of the connecting sleeve 6 allows the entire structure to adapt to certain relative movements, ensuring flexibility. The role of the elastic component is to exert an upward force on the steel tie rod 2, ensuring that it is always in a tensile state. The elastic component prevents the steel tie rod 2 from relaxing under different load conditions by applying an upward force, maintaining its predetermined tensile state and effectively stabilizing the floor structure.

[0039] The main function of the tensioning structure 3 is to apply a pre-tension to the steel tie rod 2 through the tensioner 10, keeping it at an appropriate tension and further enhancing the stability of the structure. The tensioning structure 3 includes a lower connecting seat 9, a tensioning rod 8, and a tensioner 10. The lower connecting seat 9 is fixedly connected to the lower floor 12, the lower end of the tensioning rod 8 is hinged to the lower connecting seat 9, and the lower end of the steel tie rod 2 is connected to the upper end of the tensioning rod 8 through the tensioner 10. The tensioner 10 exerts a downward pre-tension on the steel tie rod 2. The pre-tension helps ensure that the steel tie rod 2 always remains in a tensile state and can be adjusted according to actual load conditions.

[0040] The elastic component of the elastic connection structure 1 provides an upward support force for the steel tie rod 2, while the tensioner 10 adjusts the tensile state of the steel tie rod 2 by applying a downward pre-tension. The combination of the two ensures that the steel tie rod 2 maintains optimal tension under any load conditions, avoiding instability caused by uneven or varying loads. The tensioner 10 is equipped with an adjustment mechanism that can adjust the size of the pre-tension as needed, allowing precise adjustment of the tensile state of the steel tie rod 2. By adjusting the pre-tension, the structure can adapt to different load conditions, optimizing the comfort and stability of the floor structure.

[0041] The approximate installation process of the device is as follows:

[0042] Install the connecting parts: fix the upper connecting seat 4 to the upper floor 11, fix the lower connecting seat 9 to the lower floor 12, and connect the connecting sleeve 6 and the tensioning rod 8.

[0043] Assemble elastic connection structure 1: the elastic component (such as spring 7) is installed in the connecting sleeve 6, which ensures that the continuous upward force can be applied to the steel rod 2.

[0044] Install the steel rod 2: connect the upper end of the steel rod 2 to the elastic connection structure 1, and connect the lower end to the tensioner 10. The tensioner 10 applies downward tension to the steel rod 2 by adjusting the pre-tension.

[0045] Adjust the tensioner 10: according to the actual load condition, adjust the pre-tension of the steel rod 2 through the adjusting interface of the tensioner 10 to ensure that the steel rod 2 is in a proper tension state.

[0046] Complete adjustment: after adjustment, the steel rod 2 is always in tension, and the elastic connection structure 1 and the tensioning structure 3 work together to ensure the stability and comfort of the floor structure.

[0047] Combine the attached Figure 4 , 5 , 6 to explain the working principle.

[0048] Through the cooperation of the elastic connection structure 1, the tensioning structure 3 and the steel rod 2, the upper floor 11 and the lower floor 12 are connected, and the appropriate pre-tension is applied to the steel rod 2 through the tensioning structure 3. The elastic connection structure 1 ensures that the steel rod 2 always maintains the pre-tension under the live load distribution of different floors, ensuring that the steel rod 2 is always in tension, and under the action of human-induced load, it can effectively suppress the micro-deformation vibration (deformation amount is 0.1-0.3mm). This design enables the steel rod 2 to always function under dynamic load, ensuring the stability and comfort of the floor structure.

[0049] The basic model can be simplified as Figure 4 The vibration frequencies of different floors are usually different, and it is impossible for human-induced loads of the same frequency to occur at the same time. When a certain floor is subjected to human-induced load, the mass, stiffness and damping of other floors connected by the spring 7 can work together to suppress the structural vibration amplitude and acceleration of the excited floor. This mechanism can be further simplified as Figure 6 In this case, the steel rod 2 with spring 7 can effectively reduce the vibration amplitude and acceleration of the floor, thereby improving the comfort.

[0050] In contrast, Figure 5 The floor structure without adding spring 7 steel rod 2 has a relatively large vibration amplitude and a weak inhibitory effect on the vibration of the excited floor. After adding spring 7 steel rod 2, the mass, stiffness and damping of the spring 7 increase the inhibitory effect on the vibration of the excited floor, thereby reducing the structural vibration acceleration under the action of human-induced load and improving the comfort of the floor.

[0051] Compared with the common steel rod 2, the spring 7 is added on the top of the steel rod 2, which is in series with the steel rod 2, and the stiffness of the whole steel rod 2 is reduced from K21 to 1 / (1 / K21+1 / K22), wherein K21 is the stiffness of the steel rod 2, and K22 is the stiffness of the spring 7. It can be found by calculation that the spring 7 added on the top of the steel rod 2 can significantly reduce the stiffness of the steel rod 2, but has little effect on reducing the structural vibration acceleration under the human excitation, but can significantly reduce the pre-tension of the steel rod 2, that is, reduce the tension of the steel rod 2 acting on the structure beam, reduce the beam height, improve the indoor net height, reduce the structure cost, and thus improve the economy.

[0052] Embodiment two

[0053] As shown in Figure 2 , the elastic assembly includes the spring 7, the fixed ring-shaped stopper and the movable ring-shaped stopper 5, the outer edge of the fixed ring-shaped stopper is fixedly connected with the lower end of the connecting sleeve 6, the spring 7 is arranged in the connecting sleeve 6, the lower end of the spring 7 is pressed against the fixed ring-shaped stopper, the movable ring-shaped stopper 5 is arranged above the spring 7, and the upper end of the steel rod 2 is threadedly connected with the fastening nut through the fixed ring-shaped stopper, the center hole of the spring 7 and the movable ring-shaped stopper 5.

[0054] The spring 7 exerts an upward force on the steel rod 2 by providing an elastic force, so that the steel rod 2 is always kept in tension. The outer edge of the fixed ring-shaped stopper is fixedly connected with the lower end of the connecting sleeve 6, which plays a role in limiting the displacement of the spring 7, that is, fixing the lower end of the spring 7 to avoid sliding out of the connecting sleeve 6. The movable ring-shaped stopper 5 is arranged above the spring 7, and its main role is to exert a downward force on the upper end of the spring 7, that is, the steel rod 2 pulls the movable ring-shaped stopper 5 to move downward, and exerts a downward force on the spring 7.

[0055] The outer diameter of the fastening nut is greater than the inner diameter of the movable ring-shaped stopper 5, and the outer diameter of the steel rod 2 is smaller than the inner diameter of the movable ring-shaped stopper 5 and the inner diameter of the fixed ring-shaped stopper.

[0056] The working length of the spring 7 is greater than the limit compression length of the spring 7 and smaller than the free length of the spring 7, and the working length is the effective compression or elongation range of the spring 7 in the normal working state, that is, it proves that the spring 7 can be compressed and elongated within a certain range.

[0057] As shown in Figure 3 , the tensioner 10 is provided with an upper segment internal thread and a lower segment internal thread, and the thread rotation direction of the upper segment internal thread is opposite to that of the lower segment internal thread. Through the opposite direction thread cooperation, when the tensioner 10 rotates, the steel rod 2 and the tensioning rod 8 can move relatively or in the opposite direction, that is, the length of the whole connecting structure can be adjusted according to the distance between the upper floor 11 and the lower floor 12.

[0058] The lower end of the steel rod 2 is provided with external threads that match the internal threads of the upper section, and the upper end of the tensioning rod 8 is provided with external threads that match the internal threads of the lower section.

[0059] The outer side of the tensioner 10 is provided with an adjustment interface for driving the rotation of the tensioner 10. The interface allows external tools or driving devices (such as wrenches, power tools, etc.) to be connected to the tensioner 10, so that the pre-tension of the steel rod 2 can be adjusted by rotating the tensioner 10.

[0060] Embodiment Three

[0061] A cantilever floor connection structure, comprising: an elastic connection structure, a steel rod, and a tensioning structure. The upper end of the steel rod is fixedly connected to the upper floor through the tensioning structure, and the lower end of the steel rod is fixedly connected to the lower floor through the elastic connection structure. The steel rod is in a tensioned state.

[0062] In this embodiment, the positions of the elastic connection structure and the tensioning structure in the previous embodiment are interchanged. Specifically, the tensioning structure is located at the upper end of the steel rod, and the elastic connection structure is located at the lower end of the steel rod. This structure design still maintains the steel rod in a tensioned state and provides the same vibration suppression and structural stability functions as the previous embodiment.

[0063] In this embodiment, the upper end of the steel rod is fixedly connected to the upper floor through the tensioning structure, and the lower end is fixedly connected to the lower floor through the elastic connection structure. The steel rod is always in a tensioned state, which guarantees the stability and comfort of the cantilever floor structure. The steel rod bears the pre-tension provided by the tensioning structure and is always maintained in a tensioned state through the elastic connection structure.

[0064] The tensioning structure is located at the upper end of the steel rod and connected to the upper floor. The tensioning structure applies a pre-tension to the steel rod through a tensioner, ensuring that the steel rod remains stable under stress. The tensioning structure controls the degree of tensioning of the steel rod by adjusting the pre-tension, thereby adjusting the stiffness and stability of the floor. The internal and external thread structure in the tensioner still allows precise adjustment of the tension of the steel rod.

[0065] The elastic connection structure is located at the lower end of the steel rod and is fixedly connected to the lower floor through an elastic component. The elastic component (such as a spring) provides a downward elastic force to the steel rod, ensuring that the steel rod is always in a tensioned state.

[0066] The function of the elastic connection structure is to apply a continuous downward force to the steel rod through a spring or other elastic element, ensuring that it can work stably under different load conditions. The elastic connection structure also ensures that the steel rod does not relax when the load changes and always remains in a stretched state.

[0067] That is, the position of the elastic connection structure and the tensioning structure is interchanged, and in order to adapt to the new working mode, the force direction of the spring is changed. Specifically, the spring exerts a downward force on the movable annular baffle, so that the spring as a whole exerts a downward tension on the steel pull rod. The structure is changed, that is, the two ends of the spring are fixedly connected with the fixed annular baffle and the movable annular baffle, respectively.

[0068] In this embodiment, the working length of the spring cannot be greater than the maximum stretching length. This is because the maximum stretching length of the spring must be limited to avoid the spring being stretched to the limit when the structure bears excessive load, thereby affecting the stability of the structure. By controlling the stretching range of the spring, it is ensured that it can always provide appropriate tension, thereby maintaining the tension of the steel pull rod.

[0069] In the description of the present specification, the description of the terms "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments / ways or examples. In addition, the skilled person in the art can combine and combine the different embodiments / ways or examples described in the present specification and the features of the different embodiments / ways or examples, without contradiction.

[0070] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0071] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present application, and are not intended to limit the scope of the present application. Other changes or modifications can be made on the basis of the above invention, and these changes or modifications are still within the scope of the present application.

Claims

1. A cantilever floor slab connection structure, characterized in that, include: The structure includes an elastic connection structure (1), a steel tie rod (2), and a tensioning structure (3). The upper end of the steel tie rod (2) is fixedly connected to the upper floor (11) through the elastic connection structure (1), and the lower end of the steel tie rod (2) is fixedly connected to the lower floor (12) through the tensioning structure (3). The steel tie rod (2) is in a tensioned state.

2. The cantilever floor slab connection structure according to claim 1, characterized in that, The elastic connection structure (1) includes: an upper connecting seat (4), a connecting sleeve (6) and an elastic component. The upper connecting seat (4) is fixedly connected to the upper floor (11). The upper end of the connecting sleeve (6) is hinged to the upper connecting seat (4). The elastic component is disposed inside the connecting sleeve (6) and applies an upward force to the steel tie rod (2) to keep the steel tie rod (2) in a tensile state.

3. The cantilever floor slab connection structure according to claim 2, characterized in that, The tensioning structure (3) includes: a lower connecting seat (9), a tensioning rod (8), and a tensioner (10). The lower connecting seat (9) is fixedly connected to the lower floor (12). The lower end of the tensioning rod (8) is hinged to the lower connecting seat (9). The lower end of the steel tie rod (2) is connected to the upper end of the tensioning rod (8) through the tensioner (10). The tensioner (10) applies a downward preload to the steel tie rod (2).

4. The cantilever floor slab connection structure according to claim 2, characterized in that, The elastic component includes: a spring (7), a fixed annular baffle and a movable annular baffle (5). The outer edge of the fixed annular baffle is fixedly connected to the lower end of the connecting sleeve (6). The spring (7) is disposed inside the connecting sleeve (6). The lower end of the spring (7) presses against the fixed annular baffle. The movable annular baffle (5) is disposed above the spring (7). The upper end of the steel tie rod (2) passes through the fixed annular baffle, the center hole of the spring (7) and the movable annular baffle (5) and is threadedly connected to the fastening nut.

5. The cantilever floor slab connection structure according to claim 4, characterized in that, The outer diameter of the fastening nut is greater than the inner diameter of the movable annular baffle (5), and the outer diameter of the steel tie rod (2) is smaller than the inner diameter of the movable annular baffle (5) and the inner diameter of the fixed annular baffle.

6. The cantilever floor slab connection structure according to claim 4, characterized in that, The working length of the spring (7) is greater than the limit compression length of the spring (7) and less than the free length of the spring (7). The working length is the effective compression or elongation range of the spring (7) under normal working conditions.

7. The cantilever floor slab connection structure according to claim 3, characterized in that, The tensioner (10) is provided with an upper internal thread and a lower internal thread, and the thread direction of the upper internal thread is opposite to that of the lower internal thread.

8. The cantilever floor slab connection structure according to claim 7, characterized in that, The lower end of the steel tie rod (2) is provided with an external thread that matches the internal thread of the upper section, and the upper end of the tension rod (8) is provided with an external thread that matches the internal thread of the lower section.

9. A cantilever floor slab connection structure according to claim 7, characterized in that, The outer side of the tensioner (10) is provided with an adjustment interface for driving the tensioner (10) to rotate.

10. A cantilever floor slab connection structure, characterized in that, include: The system includes an elastic connection structure, a steel tie rod, and a tensioning structure. The upper end of the steel tie rod is fixedly connected to the upper floor via the tensioning structure, and the lower end of the steel tie rod is fixedly connected to the lower floor via the elastic connection structure. The steel tie rod is in a tensioned state.

Images