A hollow beam prefabricated part with steel structure and production method thereof
By using prefabricated parts with steel structures in the hollow beams, and using positioning support mechanisms and floating plates to ensure uniform distribution of concrete, the problem of insufficient structural strength of the hollow beams is solved, and higher load-bearing capacity and cost savings are achieved.
Patent Information
- Application Number
- CN202011478519.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-12-15
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2040-12-15
AI Technical Summary
Existing hollow beams still have the possibility of bending and breaking when under pressure, and the uneven distribution of concrete leads to insufficient structural strength.
Using hollow beam prefabricated parts with steel structures, by setting positioning support mechanisms and floating plates on the outside of the steel structure, the concrete is evenly poured with casting pipes to ensure that the steel structure is located in the center of the beam body, and the concrete is avoided spillover through airbags, thereby enhancing structural strength. .
It effectively improves the structural strength of hollow beams, ensures uniform distribution of concrete, reduces the risk of fracture, and realizes the recycling of positioning support mechanisms and floating plates, reducing production costs.
Smart Images
Figure CN112482659B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of concrete building materials, and in particular to a prefabricated hollow beam with a steel structure and a production method thereof. Background Art
[0002] With the rapid growth of my country's economic strength, my country's construction industry is also in a stage of rapid development. A large number of steel structures and poured concrete structures are used at construction sites in the construction industry, but solid steel structures and concrete have the problem of being too heavy.
[0003] The related technology proposes a Chinese utility model patent with authorization announcement number CN209244090U, which discloses a precast concrete hollow beam, including a beam body and protruding reinforcements. The beam body is a hollow structure, and the hollow cavity is located on the inner side of the concrete shell. Four main reinforcements are wrapped in the concrete shell along the length direction of the beam body.
[0004] With respect to the above-mentioned related technologies, the inventors believe that setting reinforcing ribs inside the beam body can strengthen the structural strength of the hollow beam to a certain extent. However, since there are still gaps inside the hollow beam, when the pressure on the hollow beam is too large, the hollow beam still has the possibility of bending and breaking. Summary of the invention
[0005] In order to further enhance the structural strength of the hollow beam, the present application provides a hollow beam prefabricated part with a steel structure and a production method thereof.
[0006] The present application provides a hollow beam prefabricated part with a steel structure and a production method thereof, which adopts the following technical solutions:
[0007] In a first aspect, the present application provides a hollow beam prefabricated part with a steel structure, which adopts the following technical solution:
[0008] A hollow beam prefabricated part with a steel structure comprises a steel structure and a beam body which are plugged into each other. The outer side of the steel structure is slidably sleeved with a positioning support mechanism which abuts against the inner wall of the beam body. The lower side of the positioning support mechanism is fixedly connected with a floating plate whose outer diameter is smaller than the inner diameter of the beam body. A casting pipe whose end extends to the outside of the top of the beam body is arranged through the floating plate.
[0009] By adopting the above technical solution, when it is necessary to cast the beam body and the steel structure, the steel structure is first pre-buried in the ground, and then the positioning support mechanism is sleeved on the steel structure, and finally the beam body is sleeved on the outside of the steel structure. When the beam body is sleeved on the outside of the steel structure, the positioning support mechanism will press the beam body tightly and ensure that the steel structure is located at the center of the beam body. At this time, the pouring pipe is used to pour concrete toward the inside of the beam body at the lower side of the floating plate, so that the concrete can be evenly distributed around the circumference of the steel structure, which is beneficial to improving the strength of the structure.
[0010] When the amount of concrete on the lower side of the floating plate increases, the concrete will push the floating plate upward. As the amount of concrete continues to increase, the floating plate and the positioning support mechanism will continue to move upward. When the concrete is poured to the top of the beam body, the floating plate and the positioning support mechanism can be separated from the beam body, thereby achieving the recycling of the floating plate and the positioning support mechanism and saving costs.
[0011] Optionally, the positioning support mechanism includes a sleeve slidably sleeved on the steel structure, the sleeve is provided with a plurality of abutment plates abutting against the inner wall of the beam body at equal intervals in the circumferential direction, and a plurality of elastic components connecting the abutment plates and the sleeve are provided between the abutment plates and the sleeve.
[0012] By adopting the above technical solution, in the process of sleeved the beam body on the outside of the steel structure, the abutment plate will abut against the inner wall of the beam body under the elastic force of the elastic component. Since the abutment plate is evenly arranged between the beam body and the sleeve, it can ensure that the steel structure is located in the middle of the beam body, thereby making the concrete evenly distributed around the circumference of the steel structure during the pouring of concrete, which is beneficial to enhancing the structural strength.
[0013] Optionally, the elastic component includes a spring for connecting the abutment plate and the sleeve.
[0014] By adopting the above technical solution, when the beam body is located outside the steel structure, the beam body compresses the spring, and the evenly distributed springs can make the distance between the beam body and the middle sleeve equal everywhere.
[0015] Optionally, one end of the spring is fixedly connected to the sleeve, the other end of the spring is fixedly connected to a plug-in column fixedly connected to the abutment plate, and the sleeve is fixedly connected to a guide tube located outside the spring and slidably plugged with the plug-in column.
[0016] By adopting the above technical solution, a guide tube is arranged on the outside of the spring, and the end of the spring is fixedly connected with a plug-in column that slides with the guide tube. When the beam body squeezes the spring, the plug-in column can move along the guide tube toward the sleeve and compress the spring, so that the compression of the spring can be along the axial direction of the guide tube, avoiding the spring from twisting during the compression process, which is beneficial to improving the service life of the spring.
[0017] Optionally, the abutment plate is arranged obliquely away from the side wall of the sleeve, and the distance between the top of the abutment plate and the sleeve is smaller than the distance between the bottom of the abutment plate and the sleeve.
[0018] By adopting the above technical solution, when the beam body needs to be sleeved on the outside of the steel structure, the beam body is first sleeved on the top of the steel structure and driven to move downward in the vertical direction. At this time, the beam body can slide downward along the inclined side wall of the abutment plate and compress the spring. The plug-in column will slide relative to the guide tube. When the beam body moves to the bottom of the steel structure, the spring drives the abutment plate to support the beam body, thereby ensuring that the steel structure is located in the center of the beam body.
[0019] Optionally, a guide groove for the abutment plate to slide is provided on the inner wall of the beam body.
[0020] By adopting the above technical solution, when the beam body and the abutment plate move relative to each other, the abutment plate can slide along the guide groove, so that the abutment plate can move more stably along the inner wall of the beam body.
[0021] Optionally, an airbag is fixedly connected to the side wall of the floating plate, and an inflation tube communicating with the airbag is provided through the floating plate.
[0022] By adopting the above technical solution, when pouring concrete toward the lower side of the floating plate, the air bag is inflated toward the inside of the air bag through the inflation tube. During the inflation process, the air bag will tightly press against the inner wall of the beam body, thereby preventing the concrete on the lower side of the floating plate from overflowing along the gap between the floating plate and the beam body. Since the air bag has a certain buoyancy, the provision of the air bag can also make the floating plate move upward more smoothly, thereby making the pouring work smoother.
[0023] In a second aspect, the present application provides a method for producing a hollow beam prefabricated part with a steel structure, using the following technical solution:
[0024] A method for producing a hollow beam prefabricated part with a steel structure, characterized in that it comprises the following steps:
[0025] S1. Install the steel structure: bury the steel structure in the vertical direction.
[0026] S2. Install the positioning support mechanism: insert the sleeve of the positioning support mechanism into the outside of the steel structure, and the floating plate is fixedly connected to the bottom of the sleeve and slidably sleeved onto the outside of the steel structure.
[0027] S3. Install the beam body: put the beam body on the outside of the steel structure and press the beam body downward. During the downward movement of the beam body, the abutment plate is squeezed. At this time, the spring is compressed and drives the abutment plate to move toward the side of the sleeve. When the beam body moves to the bottom of the steel structure, the spring drives the abutment plate to abut and support the beam body.
[0028] S4. Pouring concrete: pouring concrete toward the lower side of the floating slab using a pouring pipe.
[0029] By adopting the above technical solution, when it is necessary to pour concrete toward the position between the beam body and the steel structure, the steel structure is first pre-buried in the ground, and then the sleeve of the positioning support assembly is sleeved on the outside of the steel structure. Finally, the beam body is inserted from the top of the steel structure and driven to move toward the bottom of the steel structure. During the downward movement of the beam body, the abutment plate will be compressed, and the abutment plate will compress the spring. At this time, the plug-in column will move along the guide tube toward the direction of the sleeve. When the beam body moves to the bottom of the steel structure, the spring drives the abutment plate to support the beam body, thereby ensuring that the steel structure is located in the center of the beam body. At this time, the pouring pipe is used to pour concrete toward the lower side of the floating plate inside the beam body, so that the concrete can be evenly distributed around the steel structure, which is beneficial to improving the strength of the structure.
[0030] When pouring concrete toward the lower side of the floating plate, as the concrete on the lower side of the floating plate gradually increases, the concrete can support the floating plate and drive the floating plate to move upward. When the concrete is poured to the top of the beam body, the floating plate and the positioning support mechanism can be separated from the beam body, so that the floating plate and the positioning support mechanism can be repeatedly used.
[0031] Optionally, add the following steps after step S3:
[0032] S1. Inflate the airbag: Use the inflation tube to inflate the airbag so that the airbag is closely attached to the inner wall of the beam body.
[0033] By adopting the above technical solution, when pouring concrete toward the lower side of the floating plate, the air bag is inflated toward the inside of the air bag through the inflation tube. During the inflation process, the air bag will tightly press against the inner wall of the beam body, thereby preventing the concrete on the lower side of the floating plate from overflowing along the gap between the floating plate and the beam body. Since the air bag has a certain buoyancy, the provision of the air bag can also make the floating plate move upward more smoothly, thereby making the pouring work smoother.
[0034] In summary, the present application includes at least one of the following beneficial technical effects:
[0035] 1. When it is necessary to pour concrete toward the position between the beam body and the steel structure, the positioning support assembly is used to make the steel structure located at the center of the beam body, and then the pouring pipe is used to pour concrete toward the lower side of the floating plate. As the amount of concrete gradually increases, the concrete can support the floating plate to move upward. When the concrete is poured to the top of the beam body, the floating plate and the positioning support mechanism can be separated from the beam body, so that the floating plate and the positioning support mechanism can be repeatedly used;
[0036] 2. By arranging the airbag on the floating plate, the airbag can be tightly abutted against the inner wall of the beam body, thereby preventing the concrete from overflowing along the gap between the beam body and the floating plate;
[0037] 3. The airbag has buoyancy. When the concrete pushes the floating plate upward, the airbag can make the floating plate move upward more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS
[0038] Figure 1 It is a structural schematic diagram of the connection between the steel structure, the positioning support mechanism and the beam body in the embodiment of the present application.
[0039] Figure 2 It is a schematic diagram of the structure inside the beam body in the embodiment of the present application.
[0040] Figure 3 It is a structural schematic diagram of the positioning support mechanism in the embodiment of the present application.
[0041] Explanation of the accompanying drawings: 1. Steel structure; 2. Beam body; 21. Guide groove; 3. Positioning support mechanism; 31. Sleeve; 32. Abutment plate; 33. Elastic component; 331. Spring; 332. Plug-in column; 333. Guide tube; 4. Floating plate; 5. Casting tube; 6. Airbag; 7. Inflatable tube. DETAILED DESCRIPTION
[0042] The following is combined with Figure 1-3 This application is described in further detail.
[0043] The embodiment of the present application discloses a hollow beam prefabricated component with a steel structure.
[0044] Reference Figure 1The hollow beam prefabricated part with steel structure includes a steel structure 1 pre-buried in the ground. The steel structure 1 in this embodiment is preferably a cylindrical steel structure 1, and a hollow and cylindrical beam body 2 is sleeved on the outside of the steel structure 1. After the steel structure 1 and the beam body 2 are sleeved, concrete is poured into the gap between the beam body 2 and the steel structure 1 to form a structural whole composed of the steel structure 1 and the beam body 2. This structure is a new structure between the steel structure 1 and the concrete structure. It is a reasonable combination of the two materials of steel structure 1 and concrete, which can give full play to the advantages of the two materials and thus enhance the structural strength.
[0045] When pouring the gap between the beam body 2 and the steel structure 1, since the outer diameter of the steel structure 1 is smaller than the inner diameter of the beam body 2, it is not possible to ensure that the steel structure 1 is located at the center of the beam body 2 during the pouring process. When the steel structure 1 and the beam body 2 are connected, a positioning support mechanism 3 is sleeved on the outer side of the steel structure 1 and abuts against the inner wall of the beam body 2. By setting the positioning support mechanism 3, it can be ensured that the steel structure 1 is always located at the center of the beam body 2.
[0046] The positioning support mechanism 3 includes a sleeve 31 slidably sleeved on the outside of the steel structure 1, and three abutment plates 32 abutting against the inner wall of the beam body 2 are evenly arranged around the sleeve 31. The abutment plates 32 are connected to the side walls of the sleeve 31 through elastic components 33 respectively.
[0047] Reference Figure 2 and Figure 3 When it is necessary to cast the steel structure 1 and the beam body 2, the positioning support mechanism 3 is first sleeved on the steel structure 1, and then the beam body 2 is vertically sleeved from the top of the steel structure 1 onto the outside of the positioning support mechanism 3. In the process of sleeved downward on the beam body 2, the abutment plate 32 abuts against the inner wall of the beam body 2 under the elastic force of the elastic component 33. Since the elastic component 33 is evenly distributed around the circumference of the sleeve 31, it can ensure that the distance between the inner wall of the hollow beam and the outer wall of the sleeve 31 is equal everywhere, thereby ensuring that the steel structure 1 is located in the middle position of the beam body 2.
[0048] Reference Figure 3 The elastic component 33 includes a spring 331 arranged between the abutment plate 32 and the sleeve 31, one end of the spring 331 is fixedly connected to the outer wall of the sleeve 31, and a plug-in column 332 is fixedly connected to the other end of the spring 331. The plug-in column 332 is fixedly connected to the side wall of the abutment plate 32 close to the sleeve 31, and a guide tube 333 fixedly connected to the outer wall of the sleeve 31 is installed on the outside of the spring 331, and the other end of the guide tube 333 is slidably plugged into the plug-in column 332.
[0049] Reference Figure 2 and Figure 3, the abutment plate 32 is inclined away from the side wall of the sleeve 31, and the distance between the top of the abutment plate 32 and the sleeve 31 is smaller than the distance between the bottom of the abutment plate 32 and the sleeve 31. When the beam body 2 is plugged into the steel structure 1 along the top of the steel structure 1, the beam body 2 will move downward along the inclined side wall of the abutment plate 32. During the downward movement of the beam body 2, the abutment plate 32 will be gradually squeezed. When squeezing the abutment plate 32, the plug-in column 332 moves along the guide tube 333 toward the sleeve 31, and the spring 331 is compressed. When the beam body 2 moves to the bottom of the steel structure 1, the spring 331 tightly abuts the abutment plate 32 against the inner wall of the beam body 2. Since the beam body 2 is in a state of balanced force, the steel structure 1 can be located at the center of the beam body 2.
[0050] A floating plate 4 having a diameter smaller than the inner diameter of the beam body 2 is fixedly connected to the bottom of the sleeve 31, and a pouring pipe 5 for pouring concrete is arranged through the floating plate 4. An air bag 6 is fixedly bonded to the side wall of the floating plate 4, and an inflation pipe 7 communicating with the air bag 6 is arranged through the floating plate 4, and the other ends of the pouring pipe 5 and the inflation pipe 7 extend to the outside of the top of the beam body 2 respectively.
[0051] After the connection between the beam body 2 and the steel structure 1 is completed, concrete is poured along the pouring pipe 5 toward the lower side of the floating plate 4. As the amount of concrete on the lower side of the floating plate 4 increases, the concrete on the lower side of the floating plate 4 will push the floating plate 4 upward, thereby driving the positioning support mechanism 3 to move upward. When the concrete pouring is completed, the positioning support mechanism 3 and the floating plate 4 will be separated from the beam body 2, thereby achieving repeated use.
[0052] When pouring concrete toward the lower side of the floating plate 4, the air bag 6 is inflated by the air pipe 7. During the inflation process, the air bag 6 will be tightly pressed against the inner wall of the beam body 2, thereby preventing the concrete under the floating plate 4 from overflowing along the gap between the floating plate 4 and the beam body 2. Since the air bag 6 has a certain buoyancy, the floating plate 4 can be moved upward more smoothly by providing the air bag 6, thereby making the pouring work smoother.
[0053] Guide grooves 21 are respectively provided on the inner wall of the beam body 2 at positions opposite to the abutment plate 32. When the beam body 2 and the abutment plate 32 move relative to each other, the abutment plate 32 can slide along the guide grooves 21, thereby enabling the abutment plate 32 to move more stably along the inner wall of the beam body 2.
[0054] A method for producing a hollow beam prefabricated part with a steel structure in an embodiment of the present application comprises the following steps:
[0055] S1. Install the steel structure 1: bury the steel structure 1 along the vertical direction at the position where the beam body 2 needs to be installed.
[0056] S2, installing the positioning support mechanism 3: sliding the sleeve 31 of the positioning support mechanism 3 downward from the top of the steel structure 1 and inserting it on the steel structure 1, at this time, the floating plate 4 is also sleeved on the steel structure 1 and located at the lower side of the sleeve 31. The airbag 6 is in a contracted state, and the diameter of the outer boundary is smaller than the inner diameter of the beam body 2, so that the beam body 2 can be sleeved on the outer side of the steel structure 1.
[0057] S3. Install the beam body 2: vertically downwardly sleeve the beam body 2 from the top of the steel structure 1 onto the outside of the steel structure 1. During the vertical downward movement of the beam body 2, it will come into contact with the abutment plate 32 and squeeze the abutment plate 32. At this time, the abutment plate 32 will drive the plug-in column 332 to move along the guide tube 333 toward the direction of the sleeve 31. The spring 331 is in a compressed state. When the beam body 2 moves to the bottom of the steel structure 1, the spring 331 will abut the abutment plate 32 against the inner wall of the beam body 2. At this time, it can ensure that the steel structure 1 is located at the center of the beam body 2.
[0058] S4, inflation of the airbag 6: inflate the airbag 6 using the inflation tube 7. During the inflation process, the airbag 6 will be tightly in contact with the inner wall of the beam body 2. At this time, the inflation is stopped.
[0059] S5. Pouring concrete: Use the pouring pipe 5 to pour concrete toward the lower side of the floating plate 4. During the pouring process, the concrete will push the floating plate 4 to move upward. As the amount of concrete on the lower side of the floating plate 4 increases, the floating plate 4 will drive the positioning support mechanism 3 to move upward along the guide groove 21, and will eventually separate from the beam body 2. At this time, the pouring of the beam body 2 and the steel structure 1 can be completed, and the steel structure 1 can be ensured to be located at the center of the beam body 2.
[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A hollow beam prefabricated part with a steel structure, characterized in that: The invention comprises a steel structure (1) and a beam body (2) which are plugged into each other, wherein the outer side of the steel structure (1) is slidably sleeved with a positioning support mechanism (3) which abuts against the inner wall of the beam body (2), the lower side of the positioning support mechanism (3) is fixedly connected with a floating plate (4) whose outer diameter is smaller than the inner diameter of the beam body (2), a casting pipe (5) whose end extends to the outer side of the top of the beam body (2) is arranged through the floating plate (4), the positioning support mechanism (3) comprises a sleeve (31) which is slidably sleeved on the steel structure (1), a plurality of abutment plates (32) abutting against the inner wall of the beam body (2) are arranged at equal intervals in the circumferential direction of the sleeve (31), a plurality of elastic components (33) which connect the abutment plates (32) and the sleeve (31) are arranged between the abutment plates (32) and the sleeve (31), an air bag (6) is fixedly connected to the side wall of the floating plate (4), and an inflation pipe (7) which is connected to the air bag (6) is arranged through the floating plate (4).
2. The hollow beam prefabricated member with a steel structure according to claim 1, characterized in that: The elastic component (33) comprises a spring (331) for connecting the abutment plate (32) and the sleeve (31).
3. The hollow beam prefabricated member with a steel structure according to claim 2, characterized in that: One end of the spring (331) is fixedly connected to the sleeve (31), the other end of the spring (331) is fixedly connected to a plug-in column (332) fixedly connected to the abutment plate (32), and the sleeve (31) is fixedly connected to a guide tube (333) located outside the spring (331) and slidably plugged with the plug-in column (332).
4. A hollow beam prefabricated member with a steel structure according to any one of claims 2 to 3, characterized in that: The abutment plate (32) is arranged obliquely away from the side wall of the sleeve (31), and the distance between the top of the abutment plate (32) and the sleeve (31) is smaller than the distance between the bottom of the abutment plate (32) and the sleeve (31).
5. The hollow beam prefabricated member with a steel structure according to claim 4, characterized in that: A guide groove (21) for the abutment plate (32) to slide is provided on the inner wall of the beam body (2).
6. A method for producing a hollow beam prefabricated part with a steel structure as claimed in any one of claims 2 to 3, characterized in that: The following steps are involved: S1. Installing the steel structure (1): burying the steel structure (1) along the vertical direction; S2, installing the positioning support mechanism (3): inserting the sleeve (31) of the positioning support mechanism (3) into the outer side of the steel structure (1), and fixing the floating plate (4) to the bottom of the sleeve (31) and slidingly sleeved onto the outer side of the steel structure (1); S3, installing the beam body (2): sleeve the beam body (2) on the outside of the steel structure (1) and press the beam body (2) to move downward. During the downward movement of the beam body (2), the abutment plate (32) is squeezed. At this time, the spring (331) is compressed and drives the abutment plate (32) to move toward the side of the sleeve (31). When the beam body (2) moves to the bottom of the steel structure (1), the spring (331) drives the abutment plate (32) to abut and support the beam body (2); S4, pouring concrete: pouring concrete toward the lower side of the floating plate (4) using the pouring pipe (5).
7. The method for producing a hollow beam prefabricated part with a steel structure according to claim 6, characterized in that: Add the following steps after step S3: S1. Inflate the airbag (6): Inflate the airbag (6) using the inflation tube (7) so that the airbag (6) is closely attached to the inner wall of the beam body (2).