High-altitude large-span cantilever beam construction structure

Abstract

The utility model discloses a high-altitude large-span cantilever beam construction structure. The wall comprises a wall body, splicing holes are formed in the outer wall of the wall body, a steel reinforcement framework is bound to the top of the wall body, a bottom plate is inserted into the splicing holes, fixing holes are formed in the outer wall of the bottom plate, a top plate is placed on the top of the steel reinforcement framework, and a fixing structure is fixedly connected between the bottom plate and the top plate. The fixing structure comprises a connecting column inserted into the fixing hole. One end of the bottom plate is inserted into the wall, the top plate on the top of the steel reinforcement framework is fixedly connected with the bottom plate through the connecting columns and the nuts, the first side plate and the second side plate on the two sides are fixed through the fixing structures, a firm pouring space can be formed, pressure is borne through the connecting columns in a multi-point mode, and construction is convenient. The stress strength of the whole structure is improved, the probability of concrete leakage caused by expansion of splicing seams can be reduced, concrete leakage is avoided, the construction cost is reduced, and the attractiveness and quality of the solidified concrete are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a construction structure for a high-altitude large-span cantilever beam. Background Technique

[0002] When building construction is carried out, a cantilever beam is usually used. A cantilever beam is a beam with no supports at both ends, one end lying on the surface of the supported object and the other end being cantilevered out. Such a beam is called a cantilever beam. When constructing a large building at a high altitude, due to the large load and high height of the cantilever beam, the construction risk coefficient is relatively large, and strict requirements are imposed on the stability of the cantilever beam.

[0003] A current construction structure for a high-altitude large-span cantilever beam, as described in the patent with the publication number CN220704756U, the composition of this product includes: a main body, and two symmetrically arranged reinforcement mechanisms are provided on the upper part of the main body. Both reinforcement mechanisms include a first keel reinforcement fixedly connected to the upper surface of the main body and arranged at equal distances. The outer surface of each first keel reinforcement is respectively installed and connected with a second keel reinforcement and a third keel reinforcement through binding wires. The utility model can, by arranging the first keel reinforcement and making the first keel reinforcement, the second keel reinforcement and the third keel reinforcement cooperate with each other, and through the mutual mixing of the reinforcement mechanism and concrete, after the concrete solidifies, the components inside the reinforcement mechanism are stretched to generate prestress, thereby effectively avoiding the situation that the cantilever beam deforms due to insufficient bearing capacity, and further improving the bearing capacity and service effect of the cantilever beam.

[0004] Regarding the above related technology, the applicant believes that although a construction structure for a high-altitude large-span cantilever beam can use keel reinforcements as a support framework to improve the bearing capacity during construction, the baffle used in the specific construction is connected by bolts and mounting plates at the corners to form a pouring space. However, during actual pouring, due to the heavy weight of the concrete itself, when it fills up, it exerts a large pressure on the baffle close to the corners connected by the mounting plates and bolts, and the concrete will leak out from the gaps of the baffle that are pushed open, resulting in waste of concrete, increasing the construction cost, and after the baffle is solidified and removed, the shape of the cantilever beam changes, generating an error from the specified rotation, affecting the aesthetics and quality of the building. Content of the Utility Model

[0005] The purpose of the utility model is to provide a construction structure for a high-altitude large-span cantilever beam to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: A construction structure for a high-altitude large-span cantilever beam, including a wall, wherein splicing holes are formed in the outer wall of the wall, a steel bar framework is tied at the top of the wall, a bottom plate is inserted into the splicing holes, fixing holes are formed in the outer wall of the bottom plate, a top plate is placed on the top of the steel bar framework, and a fixing structure is fixedly connected between the bottom plate and the top plate. The fixing structure includes a connecting column inserted into the fixing hole, a stress gasket inserted into one end of the connecting column, and a nut threadedly connected to one end of the connecting column. The first side plate and the second side plate are fixedly connected to both sides of the steel bar framework by the fixing structure.

[0007] Preferably, a jack is formed at one end of the top plate, a bottom groove is formed on the upper surface of one end of the bottom plate, a sealing plate is inserted into the jack, and the bottom end of the sealing plate is inserted into the bottom groove.

[0008] Preferably, the same jacks are formed at the other end of the top plate, the bottom plates with the same structure are inserted into the outer wall of the wall opposite to the bottom plate, and the sealing plates with corresponding sizes are inserted.

[0009] Preferably, the suspended position of the lower surface of the steel bar framework is at an inclined angle, the position of the bottom plate at this place has the same inclined angle, and the top of the stress gasket at the inclined lower surface position fits the inclined surface.

[0010] Preferably, a pouring port is formed on the upper surface of the top plate, and the pouring port is located at one end of the bottom plate with an inclined angle.

[0011] Preferably, the bottom plate, the top plate, the first side plate, the second side plate and the sealing plate are composed of precast plates formed by mixing cement and fiber filaments, and the inner side of the assembly of the bottom plate, the top plate, the first side plate, the second side plate and the sealing plate is subjected to roughening treatment.

[0012] Preferably, a retaining piece with the same size as the stress gasket is welded to one end of the connecting column.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] (1) By inserting one end of the bottom plate into the wall and using the connecting column and the nut to fixedly connect the top plate at the top of the steel bar framework with the bottom plate, the first side plate and the second side plate on both sides are also fixed by the fixing structure, a firm pouring space can be formed, and the connecting column is used to bear the pressure at multiple points, improving the stress intensity of the overall structure, reducing the probability of the splicing joint expanding and leaking concrete, avoiding the leakage of concrete to reduce the construction cost, and ensuring the beauty and quality after the concrete solidifies;

[0015] (2) By inserting the sealing plate into the jack, the spaces at both ends of the cantilever beam can be sealed to form an integral structure, ensuring the normal operation of the concrete pouring operation. At the same time, the side force is relatively small compared to the forces on the first side plate and the bottom plate. The insertion method can withstand pressure, eliminating the need for multi-point fixation with connecting columns, reducing the use of connecting columns and the cost of constructing the construction structure. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is the overall structural schematic diagram of the device for the construction structure of the high-altitude large-span cantilever beam according to the embodiment of the present invention;

[0018] Figure 2 is the expanded view of the overall structure of the device for the construction structure of the high-altitude large-span cantilever beam according to the embodiment of the present invention;

[0019] Figure 3 is the schematic diagram of the sealing plate and the jack according to the embodiment of the present invention;

[0020] Figure 4 is the schematic diagram of the bottom plate and the splicing hole according to the embodiment of the present invention;

[0021] Figure 5 is the schematic diagram of the fixing structure according to the embodiment of the present invention.

[0022] In the figure: 1, wall; 2, splicing hole; 3, bottom plate; 4, fixing hole; 5, top plate; 6, fixing structure; 601, connecting column; 602, stress gasket; 603, nut; 7, pouring port; 8, first side plate; 9, second side plate; 10, jack; 11, bottom groove; 12, sealing plate; 13, steel bar cage. Detailed Description of the Specific Embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] The following further elaborates on the present invention Figures 1-5 for a more detailed description.

[0025] Embodiment 1

[0026] Please refer to Figures 1 to 5 , a kind of embodiment provided by the utility model: a construction structure of a high-altitude large-span cantilever beam, including a wall 1, a splicing hole 2 is opened on the outer wall of the wall 1, a steel bar framework 13 is tied at the top of the wall 1, a bottom plate 3 is inserted into the splicing hole 2, a fixing hole 4 is opened on the outer wall of the bottom plate 3, a top plate 5 is placed on the top of the steel bar framework 13, and a fixing structure 6 is fixedly connected between the bottom plate 3 and the top plate 5. The fixing structure 6 includes a connecting column 601 inserted into the fixing hole 4, a stress gasket 602 inserted into one end of the connecting column 601, and a nut 603 threadedly connected to one end of the connecting column 601. The first side plate 8 and the second side plate 9 are fixedly connected to both sides of the steel bar framework 13 by the fixing structure 6. By inserting one end of the bottom plate 3 into the wall 1 and using the connecting column 601 and the nut 603, the top plate 5 on the top of the steel bar framework 13 is fixedly connected to the bottom plate 3, and the first side plate 8 and the second side plate 9 on both sides are also fixed by the fixing structure 6, so as to form a firm pouring space. The connecting column 601 bears pressure at multiple points, improving the stress intensity of the overall structure, reducing the probability of the splicing joint expanding and leaking concrete, avoiding the leakage of concrete and reducing the construction cost, and ensuring the beauty and quality after the concrete solidifies.

[0027] Embodiment 2

[0028] Please refer to Figures 1 to 5 , a jack 10 is opened at one end of the top plate 5, a bottom groove 11 is opened on the upper surface of one end of the bottom plate 3, a sealing plate 12 is inserted into the jack 10, and the bottom end of the sealing plate 12 is inserted into the bottom groove 11. By inserting the sealing plate 12 into the jack 10 in a plugging manner, the end space of one end of the cantilever beam can be sealed to form an integral structure, so as to ensure the normal operation of the operation of pouring concrete. At the same time, the side force is relatively small compared with the force on the first side plate 8 and the bottom plate 3. The plugging method can bear the pressure, and there is no need to use the connecting column 601 for multi-point fixation, which can reduce the use of the connecting column 601 and reduce the cost of building the construction structure;

[0029] On the other end of the top plate 5, there are identical jacks 10. On the outer wall of the wall 1 opposite to the bottom plate 3, there is a bottom plate 3 with the same structure inserted, and a sealing plate 12 of corresponding size is inserted. By opening the same jacks 10 at the other end of the top plate 5 and inserting the same bottom plate 3 into the wall 1 on the other side, after being fixed by the fixing structure 6 and inserting the sealing plate 12, the overall structure can completely form a space that can be poured, ensuring that it can withstand the pressure of the concrete after pouring the concrete and avoiding leakage at the joints. The suspended position on the lower surface of the steel bar skeleton 13 has an inclined angle, and the bottom plate 3 has the same inclined angle at this position, and the top of the force-bearing gasket 602 at the inclined lower surface is in contact with the inclined surface. Through the design of the structure of the steel bar skeleton 13, by using the bottom with an inclined angle, the overall force-bearing strength of the cantilever beam can be improved, and the overall quality of the building can be improved. At the same time, the top of the force-bearing gasket 602 on the inclined surface also has the same inclined structure and can fit with the inclined surface. The bottom is horizontal, which is convenient for screwing on the nut 603 for fixation, making the thrust of the fixed nut 603 vertically upward and stably fixed.

[0030] Embodiment III

[0031] Please refer to Figures 1 to 5 , there is a pouring port 7 on the upper surface of the top plate 5. The pouring port 7 is located at one end of the bottom plate 3 with an inclined angle. By opening the pouring port 7 on the top plate 5 above the inclined surface, the pouring port 7 can be used to pour and fill the concrete. At the same time, after the concrete enters, it will slide down along the inclined surface on the inclined surface, accelerating the filling speed of the entire space and improving the construction efficiency. The bottom plate 3, the top plate 5, the first side plate 8, the second side plate 9, and the sealing plate 12 are composed of precast plates made of a mixture of cement and fiber filaments. The inner side of the assembly of the bottom plate 3, the top plate 5, the first side plate 8, the second side plate 9, and the sealing plate 12 is subjected to roughening treatment. By using a mixture of cement and fiber filaments to make precast plates as supporting plates, the advantages of high strength and heat insulation of the mixed materials can be used to improve the performance of the supporting plates. At the same time, the roughening treatment can better adhere firmly to the filled concrete, and there is no need to remove the formwork of each plate, forming an integral structure and reducing the labor intensity of subsequent demolition. One end of the connecting column 601 is welded with a retaining piece of the same size as the force-bearing gasket 602. By using a retaining piece of the same size at one end, the force-bearing area can be increased. After the nut 603 is tightened at the other end, the pulling force between the bottom plate 3 and the top plate 5 can be increased, reducing the probability of deformation of the gap generated by the internal filled concrete under stress.

[0032] Working principle: During use, first insert two base plates 3 with different shapes into the corresponding splicing holes 2 respectively. Place the top plate 5 on the top of the steel bar framework 13. Then, insert the connecting columns 601 into the top plate 5 and the base plates 3 in sequence. After inserting the stress pads 602 at the bottom ends of the connecting columns 601, screw on the nuts 603 to complete the fixation. The first side plate 8 and the second side plate 9 can be fixed by using the same fixing structure 6. At both ends, insert the sealing plates 12 into the jacks 10 and the bottom grooves 11 to complete the construction of the construction structure, and then fill the concrete from the pouring port 7.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model.

Claims

1. A construction structure for a high-altitude large-span cantilever beam, including a wall (1), characterized in that: The outer wall of the wall body (1) is provided with splicing holes (2). A steel bar framework (13) is tied at the top of the wall body (1). A bottom plate (3) is inserted into the interior of the splicing holes (2). Fixing holes (4) are provided on the outer wall of the bottom plate (3). A top plate (5) is placed on the top of the steel bar framework (13). A fixing structure (6) is fixedly connected between the bottom plate (3) and the top plate (5). The fixing structure (6) includes a connecting column (601) inserted into the fixing holes (4), a stress-bearing gasket (602) inserted into one end of the connecting column (601), and a nut (603) threadedly connected to one end of the connecting column (601). The first side plate (8) and the second side plate (9) are fixedly connected to both sides of the steel bar framework (13) by the fixing structure (6).

2. The construction structure of a high-altitude long-span cantilever beam according to claim 1, characterized in that: One end of the top plate (5) is provided with an insertion hole (10). A bottom groove (11) is provided on the upper surface of one end of the bottom plate (3). A sealing plate (12) is inserted into the interior of the insertion hole (10), and the bottom end of the sealing plate (12) is inserted into the bottom groove (11).

3. The construction structure of a high-altitude large-span cantilever beam according to claim 2, characterized in that: The other end of the top plate (5) is provided with the same insertion hole (10). A bottom plate (3) with the same structure is inserted into the outer wall of the wall body (1) opposite to the bottom plate (3), and a sealing plate (12) of corresponding size is inserted.

4. A construction structure for a high-altitude large-span cantilever beam according to claim 1, characterized in that: The suspended position on the lower surface of the steel bar framework (13) has an inclined angle. The position of the bottom plate (3) at this place has the same inclined angle, and the top of the stress-bearing gasket (602) at the inclined lower surface position fits with the inclined surface.

5. A construction structure for a high-altitude large-span cantilever beam according to claim 4, characterized in that: A pouring port (7) is provided on the upper surface of the top plate (5). The pouring port (7) is located at one end of the bottom plate (3) with an inclined angle.

6. The construction structure of a high-altitude and large-span cantilever beam according to claim 1, characterized in that: The bottom plate (3), the top plate (5), the first side plate (8), the second side plate (9) and the sealing plate (12) are made of precast slabs formed by mixing cement and fiber filaments. The inner sides of the assembled bottom plate (3), the top plate (5), the first side plate (8), the second side plate (9) and the sealing plate (12) are subjected to roughening treatment.

7. The construction structure of a high-altitude large-span cantilever beam according to claim 1, characterized in that: A retaining piece of the same size as the stress-bearing gasket (602) is welded to one end of the connecting column (601).

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