Protective structure of steel frame core tube structure without external operation frame and peripheral guardrail plate

Abstract

According to the technical scheme, the protection structure of the steel frame core tube structure without the outer operation frame and the peripheral guardrail plate is characterized by comprising a plurality of outer fixing supports and a plurality of inner fixing supports, and each outer fixing support is fixedly connected with a first upper hook and a first lower hook; the inner fixing support is fixedly connected with a second upper hook and a second lower hook, the first upper hook abuts against the second lower hook, the second upper hook abuts against the first lower hook, the first lower hook abuts against a first positioning ring abutting against the second upper hook, the first positioning ring is connected with an outer connecting support, and the outer connecting support is connected with an outer connecting ring. According to the utility model, the mode that the first upper hook is abutted against the second lower hook and the second upper hook is abutted against the first lower hook is adopted to replace an auxiliary connecting piece, so that the stress can be better and uniformly transferred.

Description

Technical Field

[0001] The utility model relates to a protection structure, and more specifically, to a protection structure for a steel frame core tube structure without an external operation frame and a peripheral guardrail board. Background Art

[0002] Steel frame core tube structures are widely used in high-rise buildings. As the central support of the structure, the strength and stability of the core tube need to be particularly strengthened. Usually, the core tube structure expands the construction area in a circular radiation spreading manner. In this way, the places closer to the edge are more likely to break due to the lever principle, and it is necessary to set up an external operation frame and a peripheral guardrail board as a protection structure to assist in fixing the extended area of the core tube and protect the core tube from breaking. The protection structure plays an important role during the formation of the core tube. However, it is found in actual use that when the external operation frame and the peripheral guardrail board are used as the protection structure, if the bracket part is directly cast integrally, it will affect the installation of subsequent protection devices. The bracket part will be additionally installed on the overall structure during the period when the core tube is not formed, which may cause deviations in the formation of the core tube, or the bracket part deviates from the predetermined position after being formed under the action of factors such as wind, resulting in material waste. Therefore, a protection structure for a steel frame core tube structure without an external operation frame and a peripheral guardrail board is needed. This device does not require the erection of an additional external operation frame and a peripheral guardrail board as a protection structure, and can also prevent the edge position from breaking.

[0003] Combined with the above reasons, how to prevent the edge position from breaking without erecting an additional external operation frame and a peripheral guardrail board as a protection structure is exactly the problem considered in this application. Summary of the Utility Model

[0004] A protection structure for a steel frame core tube structure without an external operation frame and a peripheral guardrail board is provided for the deficiencies of the prior art. This device does not require the erection of an additional external operation frame and a peripheral guardrail board as a protection structure, and can also prevent the edge position from breaking.

[0005] To achieve the above object, the following technical solutions are provided: A protection structure for a steel frame core tube structure without an external operation frame and a peripheral guardrail board includes a plurality of external fixing brackets and a plurality of internal fixing brackets. The external fixing brackets are fixedly connected with a first upper hook and a first lower hook. The internal fixing brackets are fixedly connected with a second upper hook and a second lower hook. The first upper hook abuts against the second lower hook, and the second upper hook abuts against the first lower hook. The first lower hook abuts against a first positioning ring that abuts against the second upper hook. The first positioning ring is connected with an external connecting bracket, and the external connecting bracket is connected with an external connecting ring. The first upper hook abuts against a second positioning ring that abuts against the second lower hook.

[0006] In summary, the above technical solutions have the following beneficial effects: In the common steel frame-core tube structure, multiple steel bars are vertically connected, and the connection between the steel bars is achieved by welding auxiliary connectors. This can also facilitate the installation of the external operation frame and the peripheral guardrail, and from the perspective of the force form, it can bear a large vertical bearing capacity. However, when facing tangential forces, its bearing capacity is extremely limited. Therefore, when constructing in the tangential extension area, an external operation frame and a peripheral guardrail are additionally installed. The external operation frame and the peripheral guardrail mainly play the role of dispersing the force, thereby maintaining the stability of the overall structure and playing a protective role.

[0007] In actual construction, it is found that the above method is difficult to cope with the situation of cement expansion during pouring. When the cement expands, it is easy to drive the auxiliary connectors to move slightly, resulting in slight fractures at the welding points. Although the formed shape of the core tube can be maintained by setting up multiple protective structures, it is more time-consuming and laborious.

[0008] In the present utility model, the use of auxiliary connectors is replaced by the abutting of the first upper hook and the second lower hook and the abutting of the second upper hook and the first lower hook. Moreover, the first positioning ring and the second positioning ring are used to fasten multiple groups of external fixing brackets and internal fixing brackets to prevent the external fixing brackets and internal fixing brackets from tilting laterally after the cement solidifies. Welding and fixing are also required before pouring. During pouring, the cement will penetrate between the first upper hook and the second lower hook and between the second upper hook and the first lower hook. In fact, this will completely wrap the first positioning ring and the second positioning ring, reducing the risk of fracture in the first step. After the cement solidifies, although volume expansion may cause the welding points to fracture, the overall combined structure of the upper hook and the lower hook will not change. Instead, due to the complex structure being embedded in the cement, the force can be dispersed to the middle part of the external fixing brackets and internal fixing brackets faster, avoiding fracture caused by excessive stress concentration at the connection points in a short time.

[0009] In addition, the external connection bracket for extending the construction area is connected to the first positioning ring. In this way, the external connection bracket is not directly connected to the external fixing bracket or the internal fixing bracket, which can better transfer the force evenly, substantially increasing the maximum force at the edge position. Thus, the purpose of preventing fracture at the edge position can be achieved without erecting additional external operation frames and peripheral guardrails as protective structures.

[0010] In the present utility model, by setting the abutting of the first upper hook and the second lower hook and the abutting of the second upper hook and the first lower hook to replace the use of auxiliary connectors, the force can be transferred more evenly, thereby achieving the purpose of preventing fracture at the edge position without erecting additional external operation frames and peripheral guardrails as protective structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1It is a sectional view of the first stabilizing ring in the present utility model;

[0012] Figure 2 It is a sectional view of the second stabilizing ring in the present utility model.

[0013] Reference signs: 1, external fixing bracket; 2, internal fixing bracket; 3, first positioning ring; 4, second positioning ring; 11, first upper hook; 12, first lower hook;

[0014] 21, second upper hook; 22, second lower hook;

[0015] 31, external connecting bracket; 32, external connecting ring; 33, first stabilizing ring; 34, external cable;

[0016] 41, internal connecting bracket; 42, internal connecting ring; 43, second stabilizing ring; 44, internal cable. Detailed implementation manners

[0017] The present utility model will be further described in detail below in conjunction with the drawings and embodiments. The same components are denoted by the same reference signs. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component respectively.

[0018] Refer to Figure 1-2 As shown, the protection structure of the steel frame core tube structure without an external operation frame and a peripheral guardrail plate includes a plurality of external fixing brackets 1 and a plurality of internal fixing brackets 2. The external fixing bracket 1 is fixedly connected with a first upper hook 11 and a first lower hook 12. The internal fixing bracket 2 is fixedly connected with a second upper hook 21 and a second lower hook 22. The first upper hook 11 abuts against the second lower hook 22, and the second upper hook 21 abuts against the first lower hook 12. The first lower hook 12 abuts against a first positioning ring 3 that abuts against the second upper hook 21. The first positioning ring 3 is connected with an external connecting bracket 31. The external connecting bracket 31 is connected with an external connecting ring 32. The first upper hook 11 abuts against a second positioning ring 4 that abuts against the second lower hook 22;

[0019] The common steel frame core tube structure adopts a method of vertically connecting multiple steel bars, and realizes the connection between the steel bars by welding auxiliary connecting members. In this way, it is also convenient to install an external operation frame and a peripheral guardrail plate, and from the perspective of the force form, it can bear a large vertical bearing capacity. However, when facing tangential forces, its bearing capacity is extremely limited. Therefore, when constructing in the tangential extension area, an external operation frame and a peripheral guardrail plate will be additionally installed. The external operation frame and the peripheral guardrail plate mainly play a role in dispersing the force, thereby maintaining the stability of the overall structure and playing a protective role;

[0020] In actual construction, it is found that the above method is difficult to cope with the situation of cement expansion during pouring. When the cement expands, it is easy to drive the auxiliary connecting piece to move slightly, resulting in slight fracture of the welding point. Although the formed shape of the core tube can be maintained by setting up multiple protective structures, it is more time-consuming and laborious;

[0021] In the present utility model, the use of auxiliary connecting pieces is replaced by the abutment of the first upper hook 11 and the second lower hook 22 and the abutment of the second upper hook 21 and the first lower hook 12. Moreover, the first positioning ring 3 and the second positioning ring 4 are used to imprison multiple groups of outer fixing brackets 1 and inner fixing brackets 2 to prevent the outer fixing brackets 1 and the inner fixing brackets 2 from tilting laterally after the cement solidifies. Welding and fixing are also required before pouring. During pouring, the cement will penetrate between the first upper hook 11 and the second lower hook 22 and between the second upper hook 21 and the first lower hook 12. In fact, this will completely wrap the first positioning ring 3 and the second positioning ring 4, reducing the risk of fracture in the first step. After the cement solidifies, although the volume expansion may cause the welding point to fracture, the overall combined structure of the upper hook and the lower hook will not change. Instead, because the complex structure is embedded in the cement, the force can be more quickly dispersed to the middle part of the outer fixing bracket 1 and the inner fixing bracket 2, preventing the joint from breaking due to excessive stress concentration in a short time;

[0022] In addition, the outer connecting bracket 31 used to extend the construction area is connected to the first positioning ring 3. In this way, the outer connecting bracket 31 is not directly connected to the outer fixing bracket 1 or the inner fixing bracket 2, and can better transfer the force evenly, substantially increasing the maximum force at the edge position. Thus, the purpose of preventing the edge position from breaking can be achieved without setting up additional external operation frames and peripheral guardrail plates as protective structures;

[0023] By replacing the use of auxiliary connecting pieces with the abutment of the first upper hook 11 and the second lower hook 22 and the abutment of the second upper hook 21 and the first lower hook 12, the present utility model can better transfer the force evenly, so as to achieve the purpose of preventing the edge position from breaking without setting up additional external operation frames and peripheral guardrail plates as protective structures.

[0024] Furthermore, the second upper hook 21 also abuts against a first stabilizing ring 33 that abuts against the outer fixing bracket 1. The first stabilizing ring 33 is arranged above the second upper hook 21, and the first stabilizing ring 33 is connected to an outer cable 34 that is connected to the outer connecting ring 32;

[0025] Since no external operation scaffold and peripheral guardrail plate are provided, in order to further strengthen the stability of the edge position, an external cable 34 is provided as an auxiliary stabilizing device, which can form a structure similar to the cable of a bridge. Its main function is to transfer the load at the edge position to the top of the internal fixing bracket 2 and the side of the external fixing bracket 1 through the arrangement of the external cable 34 before the cement solidifies. This can not only maintain the stability of the edge position, but also maintain the stability of the overall structure of the core tube by the forces on the top of the internal fixing bracket 2 and the side of the external fixing bracket 1;

[0026] In addition, the external cable 34 is made of a material with a certain elasticity, so it will undergo elastic deformation under the action of external forces. When the edge position is stressed, the external cable 34 will be subjected to corresponding tensile force changes and undergo elastic deformation. This elastic deformation helps to absorb and disperse the acting force, improving the bearing capacity and stability of the bridge.

[0027] Furthermore, the second positioning ring 4 is connected to an internal connection bracket 41, and the internal connection bracket 41 is connected to an internal connection ring 42;

[0028] The first upper hook 11 also abuts against a second stabilizing ring 43 that abuts against the internal fixing bracket 2. The second stabilizing ring 43 is provided above the first upper hook 11, and the second stabilizing ring 43 is connected to an internal cable 44 that is connected to the internal connection ring 42;

[0029] The design principles of the internal connection bracket 41, the internal connection ring 42, the second stabilizing ring 43 and the internal cable 44 are similar to those of the external connection bracket 31, the external connection ring 32, the first stabilizing ring 33 and the external cable 34. Their main function is to further balance the internal forces of the core tube and prevent the core tube from collapsing inward.

[0030] Furthermore, both ends of the external connection bracket 31 are circular rings and are respectively passed through by the first positioning ring 3 and the external connection ring 32;

[0031] Both ends of the external cable 34 are circular rings and are respectively passed through by the first stabilizing ring 33 and the external connection ring 32;

[0032] Both ends of the internal connection bracket 41 are circular rings and are respectively passed through by the second positioning ring 4 and the internal connection ring 42;

[0033] Both ends of the internal cable 44 are circular rings and are respectively passed through by the second stabilizing ring 43 and the internal connection ring 42;

[0034] The structures of the outer connection bracket 31, the outer cable 34, the inner connection bracket 41, and the inner cable 44 are similar. Taking the outer connection bracket 31 as an example, the outer connection bracket 31 can be made of steel bars, and the circular rings at both ends can be directly formed by bending the steel bars. It mainly serves to stably connect the first positioning ring 3 and the outer connection ring 32. In addition, it can be bent several more times to form a structure similar to a spring, increasing the contact area with the first positioning ring 3 and the outer connection ring 32, and further maintaining the structural stability.

[0035] The design principles of the outer cable 34, the inner connection bracket 41, and the inner cable 44 are the same as those of the outer connection bracket 31.

[0036] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. Protection structure of steel frame-core tube structure without external operation platform and peripheral guardrail plate, characterized in that, It includes a plurality of external fixation brackets and a plurality of internal fixation brackets. The external fixation bracket is fixedly connected with a first upper hook and a first lower hook. The internal fixation bracket is fixedly connected with a second upper hook and a second lower hook. The first upper hook abuts against the second lower hook, and the second upper hook abuts against the first lower hook. The first lower hook abuts against a first positioning ring that abuts against the second upper hook. The first positioning ring is connected with an external connection bracket, and the external connection bracket is connected with an external connection ring. The first upper hook abuts against a second positioning ring that abuts against the second lower hook.

2. The protective structure without an external operation scaffold and a peripheral guardrail plate for the steel frame-core tube structure according to claim 1, wherein The second upper hook also abuts against a first stabilizing ring that abuts against the external fixation bracket. The first stabilizing ring is arranged above the second upper hook, and the first stabilizing ring is connected with an external cable that is connected with the external connection ring.

3. The protective structure without an external operating platform and peripheral guardrail plates for the steel frame-core tube structure according to claim 1, characterized in that, The second positioning ring is connected with an internal connection bracket, and the internal connection bracket is connected with an internal connection ring.

4. The protective structure without an external operating platform and peripheral guardrail plates for the steel frame-core tube structure according to claim 3, characterized in that, The first upper hook also abuts against a second stabilizing ring that abuts against the internal fixation bracket. The second stabilizing ring is arranged above the first upper hook, and the second stabilizing ring is connected with an internal cable that is connected with the internal connection ring.

5. The protective structure without an external operation platform and a peripheral guardrail plate for the steel frame-core tube structure according to claim 1, wherein, Both ends of the external connection bracket are circular rings and are respectively for the first positioning ring and the external connection ring to pass through.

6. The protective structure without an external operating scaffold and peripheral guardrail plate for the steel frame-core tube structure according to claim 2, characterized in that, Both ends of the external cable are circular rings and are respectively for the first stabilizing ring and the external connection ring to pass through.

7. The protective structure without an external operation platform and peripheral guardrail plates for the steel frame-core tube structure according to claim 3, characterized in that, Both ends of the internal connection bracket are circular rings and are respectively for the second positioning ring and the internal connection ring to pass through.

8. The protective structure without an external operation platform and a peripheral guardrail plate for the steel frame-core tube structure according to claim 4, characterized in that, Both ends of the internal cable are circular rings and are respectively for the second stabilizing ring and the internal connection ring to pass through.

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