Large-span steel frame for electronic plant and construction method thereof

Abstract

The present application relates to steel frame construction technology field, concretely is electronic plant large-span steel frame and its construction method, include: wafer board layer, the inside of waft board layer is provided with multiple honeycomb arrangement shaped cylinder, the outside wall of shaped cylinder is fixedly connected with downward bending suspension buckle, the suspension buckle is buckled from top to bottom on the outside of steel bar frame;Sealing bottom plate is hung in the lower end of shaped cylinder, mutually fit between two adjacent sealing bottom plates;Wafer board layer is located in the lower layer of roof steel truss and is fixed with stand column;Beneficial effect is: through setting up multiple honeycomb arrangement shaped cylinder in the inside of waft board layer, the outside of shaped cylinder sets up steel bar frame for reinforcing the strength of waft board layer, the device can first set up roof steel truss on the top of stand column, then sets up the mould of waft board layer and its inside shaped cylinder and steel bar frame in the lower layer of roof steel truss, need not wait for concrete to be shaped again set up roof steel truss, to shorten the construction period.

Description

Technical Field

[0001] This invention relates to the field of steel frame construction technology, specifically to large-span steel frames for electronic factory buildings and their construction methods. Background Technology

[0002] High-tech electronics factories differ from ordinary factories in that they have higher requirements for cleanliness. Their buildings must be completely enclosed, with air circulating only inside the factory. To ensure air circulation inside the factory, the floor slabs are mostly made of perforated designs such as waffle boards.

[0003] In the existing technology, when constructing the roof steel truss of a factory building, it is necessary to first pour waffle slabs, and then fix the roof steel truss on the upper layer of the waffle slabs after the waffle slabs have solidified.

[0004] However, due to the long curing period of concrete, the roof steel truss on top cannot be installed in advance before the waffle slab has solidified, thus lengthening the overall construction period of the factory. Furthermore, severe weather such as heavy rain or strong winds during the waffle slab construction process can affect the curing of the waffle slab, further delaying the entire construction cycle. Therefore, this invention proposes a large-span steel frame for an electronics factory and its construction method to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a large-span steel frame for electronic factory buildings and its construction method, so as to solve the problem mentioned in the background art that the roof steel truss can only be installed after the waffle plate has solidified and formed, resulting in a long construction cycle.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a large-span steel frame for an electronics factory, comprising:

[0007] The waffle board layer has multiple honeycomb-shaped forming cylinders inside. A steel reinforcement frame is mounted on the outside of the forming cylinders. A downwardly curved hanging buckle is fixedly connected to the outer wall of the forming cylinder. The hanging buckle is fastened to the outside of the steel reinforcement frame from top to bottom.

[0008] A sealing base plate, wherein the sealing base plate is configured as a regular hexagon, the sealing base plate is suspended from the lower end of the forming cylinder, and adjacent sealing base plates are fitted together; and

[0009] A roof steel truss is fixed to the upper end of a column, which is fixed to the ground. The waffle plate layer is located on the lower layer of the roof steel truss and is fixed to the column.

[0010] Preferably, the steel reinforcement frame has two layers and is located in the upper and lower halves of the forming cylinder respectively. The steel reinforcement frame is composed of three groups of steel reinforcement bars tied together at a 60-degree angle to each other. Each group of steel reinforcement bars includes multiple steel bars distributed at equal intervals.

[0011] Preferably, the hanging buckle is located in the lower half of the forming cylinder, and the upper half of the forming cylinder is fixedly provided with an overlapping buckle. Multiple overlapping buckles and hanging buckles are provided and distributed in a circular array. The overlapping buckles and hanging buckles are symmetrical to each other, and the steel reinforcement frame located in the upper half of the forming cylinder rests on the overlapping buckles.

[0012] Preferably, the sealing base plate is movably sleeved on the outer side of the lower end of the forming cylinder, a connecting ring is fixedly provided on the upper surface of the sealing base plate, a limiting groove is provided at the lower end of the connecting ring, a limiting flange is fixedly provided at the lower end of the forming cylinder, and the limiting flange is movably embedded in the inner cavity of the limiting groove.

[0013] Preferably, both the limiting groove and the limiting flange are frustum-shaped, a sealing ring is bonded to the inner wall of the limiting groove, and a sealing gasket is bonded to the side of the sealing base plate.

[0014] Preferably, the inner wall of the connecting ring has multiple inner grooves arranged in a ring array, and the inner grooves are trapezoidal.

[0015] Preferably, the roof steel truss is composed of multiple equally spaced I-beams and multiple equally spaced angle steels welded together. The lower surface of the I-beams is welded with a cap, which corresponds to the upper end of the forming cylinder. The lower surface of the cap is fixedly provided with a fastening flange, which is inserted into and fits into the upper end cavity of the forming cylinder.

[0016] A construction method for a large-span steel frame for an electronics factory, as described above, specifically includes the following steps:

[0017] S1. Construct I-beams, set up formwork on the ground and cast the columns, or directly hoist the prefabricated columns and fix them to the ground. Then, erect a roof steel truss on top of the columns, i.e., I-beams and angle steel, and weld multiple I-beams and angle steels together in a grid pattern.

[0018] S2. For waffle slab formwork, first, build the lower layer of steel reinforcement frame inside the waffle slab and fix the steel reinforcement frame to the column. Then, pass the forming cylinder through the steel reinforcement frame from bottom to top and keep it fixed to the steel reinforcement frame.

[0019] S3. Casting and forming the waffle slab layer: Install multiple forming cylinders in sequence according to step S, and keep the adjacent sealing base plates together by rotating the sealing base plates. Then, build another layer of steel reinforcement frame on the upper half of the forming cylinder. Next, pour concrete grout from the outside and above the forming cylinder. Once the concrete grout has solidified, the waffle slab layer will be formed.

[0020] Preferably, in step S2, a sealing base plate is provided below the rebar frame, and the forming cylinder passes through the sealing base plate and the rebar frame from bottom to top. The forming cylinder is slightly rotated and then loosened, so that the hanging buckle of the lower half of the forming cylinder can be fastened to the rebar frame from top to bottom. The sealing base plate can be suspended at the lower end of the forming cylinder through the cooperation between the connecting ring and the limiting flange.

[0021] Preferably, in S3, the other layer of steel reinforcement frame does not need to be welded or fixed, and is placed directly on the upper part of the lap buckle from top to bottom and supported by the lap buckle.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] This invention utilizes multiple honeycomb-shaped forming cylinders arranged inside a waffle slab layer. A steel reinforcement frame is erected on the outside of the forming cylinders to strengthen the waffle slab layer. Hanging buckles are welded to the surface of the forming cylinders and fastened to the steel reinforcement frame for fixation. A sealing base plate is installed at the lower end of the forming cylinder, and multiple sealing base plates are spliced ​​together to prevent leakage during concrete pouring. Therefore, this device allows for the initial installation of a roof steel truss at the top of the column, followed by the installation of the waffle slab mold and its internal forming cylinders and steel reinforcement frame on the lower layer of the roof steel truss. Finally, the concrete-formed waffle slab layer is poured and connected to the column to ensure positional stability and its own strength. This eliminates the need to wait for the concrete to solidify before installing the roof steel truss, thus shortening the construction cycle. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the waffle plate of the present invention;

[0026] Figure 3 This is a three-dimensional schematic diagram of the roof steel truss structure of the present invention;

[0027] Figure 4 This is a schematic diagram showing the separation of the sealing bottom plate structure of the molding cylinder of the present invention;

[0028] Figure 5 This is a three-dimensional schematic diagram of the sealing base plate structure of the present invention.

[0029] In the diagram: 1. Waffle plate layer; 2. Forming cylinder; 3. Overlap buckle; 4. Hanging buckle; 5. Limiting flange; 6. Rebar frame; 7. Sealing base plate; 8. Connecting ring; 9. Limiting groove; 10. Sealing ring; 11. Sealing gasket; 12. Inner groove; 13. I-beam; 14. Angle steel; 15. Cover; 16. Fastening flange; 17. Column. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.

[0034] Please see Figures 1 to 5 The present invention provides a technical solution: Example 1:

[0035] The large-span steel frame of the electronics factory includes: waffle plate layer 1, sealed base plate 7, and roof steel truss.

[0036] Specifically, multiple honeycomb-shaped forming cylinders 2 are arranged inside the waffle board layer 1. A steel frame 6 is installed on the outside of the forming cylinders 2. The steel frame 6 and the forming cylinders 2 are used to strengthen the overall strength of the waffle board layer 1. Arranging the forming cylinders 2 in a honeycomb pattern can maximize the load-bearing capacity of the waffle board layer 1 with minimal material consumption. The outer wall of the forming cylinders 2 is fixedly connected with downward-curving hanging buckles 4. The hanging buckles 4 are fastened to the outside of the steel frame 6 from top to bottom. In other words, the forming cylinders 2 do not need to be welded and positioned at high altitudes during installation and construction. They can simply be fastened to the steel frame 6, making the construction more convenient and labor-saving.

[0037] Secondly, the sealing base plate 7 is set as a regular hexagon. The sealing base plate 7 is suspended from the lower end of the forming cylinder 2. Adjacent sealing base plates 7 are fitted together, and multiple sealing base plates 7 are matched together in a honeycomb shape. Since the horizontal position of the forming cylinder 2 is limited by the steel frame 6, the sealing base plate 7 will not shift in the horizontal direction. That is to say, after multiple sealing base plates 7 are spliced ​​together in a honeycomb shape, they will not move away from each other in the horizontal direction, resulting in gaps. Under the action of its own weight, the vertical position of the sealing base plate 7 can also be limited. When there is no external force, multiple sealing base plates 7 can maintain the same horizontal position, thereby avoiding misalignment between adjacent sealing base plates 7 and the generation of gaps, and thus avoiding leakage of the waffle plate layer 1 when concrete is poured and formed.

[0038] In addition, the roof steel truss is fixed to the upper end of column 17, which is fixed to the ground. Column 17 can be cast in place with concrete or prefabricated and then installed and positioned after being transferred to a suitable location by hoisting equipment. The waffle plate layer 1 is located on the lower layer of the roof steel truss and is fixed to column 17. The roof steel truss is mainly supported by column 17, and the waffle plate layer 1 plays an auxiliary supporting role. Therefore, the construction of the roof steel truss does not need to wait for the waffle plate layer 1 to be formed. Before the waffle plate layer 1 is cast and formed, the roof steel truss can still be constructed normally, thereby shortening the construction cycle of the entire factory building. After the waffle plate layer 1 solidifies and forms, it provides further support to the roof steel truss to ensure the stability of the factory roof. Example 2:

[0039] Based on Embodiment 1, in order to further enhance the overall strength of the waffle slab layer 1, the steel reinforcement frame 6 of this application is provided in two layers and located in the upper and lower halves of the forming cylinder 2 respectively. The steel reinforcement frame 6 is composed of three groups of steel reinforcement bars tied together at a 60-degree angle to each other. Each group of steel reinforcement bars includes multiple steel bars distributed at equal intervals, thereby further enhancing the overall strength of the waffle slab layer 1. Example 3:

[0040] Based on Embodiment 2, in order to simplify the construction steps of the waffle slab layer 1, the suspension buckle 4 of this application is located in the lower half of the forming cylinder 2, and the upper half of the forming cylinder 2 is fixedly provided with the overlapping buckle 3. Multiple overlapping buckles 3 and hanging buckles 4 are provided and distributed in a circular array. The overlapping buckles 3 and hanging buckles 4 are symmetrical to each other. The steel frame 6 located in the upper half of the forming cylinder 2 rests on the overlapping buckle 3. Therefore, the steel frame 6 in the upper half of the forming cylinder 2 does not need to be welded and fixed during construction. It only needs to be supported by the overlapping buckle 3 under the action of gravity, thereby simplifying the construction steps of the waffle slab layer 1. Example 4:

[0041] Based on Embodiment 3, in order to suspend and position the sealing base plate 7, the sealing base plate 7 of this application is movably sleeved on the outer side of the lower end of the molding cylinder 2. A connecting ring 8 is fixedly provided on the upper surface of the sealing base plate 7, and a limiting groove 9 is formed at the lower end of the connecting ring 8. A limiting flange 5 is fixedly provided at the lower end of the molding cylinder 2, and the limiting flange 5 is movably embedded in the inner cavity of the limiting groove 9. Figure 4 and Figure 5 As can be seen, after the forming cylinder 2 passes through the sealing base plate 7 from bottom to top, the limiting flange 5 at the lower end of the forming cylinder 2 can be engaged in the inner cavity of the limiting slot 9, thereby ensuring that the sealing base plate 7 can be suspended at the lower end of the forming cylinder 2 under the action of gravity, and the lower end face of the forming cylinder 2 can be flush with the lower surface of the sealing base plate 7, so as to ensure that the lower surface of the waffle layer 1 is flatter and more aesthetically pleasing after forming. Example 5:

[0042] Based on Embodiment 4, in order to prevent leakage of the waffle plate layer 1 during concrete pouring, the limiting groove 9 and the limiting flange 5 of this application are both set as frustum-shaped, which makes it easier for the limiting flange 5 and the limiting groove 9 to fit together. A sealing ring 10 is bonded to the inner wall of the limiting groove 9, and a sealing gasket 11 is bonded to the side of the sealing base plate 7 to improve the sealing between the limiting flange 5 and the inner wall of the limiting groove 9, as well as the sealing effect after splicing two adjacent sealing base plates 7, thereby preventing leakage of the waffle plate layer 1 during concrete pouring. Example 6:

[0043] Based on Embodiment 5, in order to strengthen the connection between the forming cylinder 2 and the sealing base plate 7, this application also has a plurality of inner grooves 12 arranged in a ring array on the inner sidewall of the connecting ring 8. The inner grooves 12 are trapezoidal. When the waffle plate layer 1 is poured with concrete, some of the concrete can seep into the inner cavity of the inner grooves 12. After the concrete in this area solidifies, it can strengthen the connection between the forming cylinder 2 and the sealing base plate 7, thereby preventing the sealing base plate 7 from being displaced due to external vibration, and further strengthening the overall strength of the waffle plate layer 1. Example 7:

[0044] Based on Embodiment Six, in order to prevent concrete from entering the interior of the molding cylinder 2 during concrete pouring, the roof steel truss of this application is composed of multiple equally spaced I-beams 13 and multiple equally spaced angle steels 14 welded together. A cap 15 is welded to the lower surface of the I-beams 13, and the cap 15 corresponds to the upper end of the molding cylinder 2. A fastening flange 16 is fixedly provided on the lower surface of the cap 15. The fastening flange 16 is inserted into the upper end cavity of the molding cylinder 2 and fits therein. When the molding cylinder 2 is erected, the cap 15 covers the upper end opening of the molding cylinder 2, and the fastening flange 16 extends into the upper end cavity of the molding cylinder 2 to horizontally position the molding cylinder 2 and prevent concrete from entering the interior of the molding cylinder 2 during concrete pouring.

[0045] The present invention also provides a construction method for the large-span steel frame of the electronic factory building described above, specifically including the following steps:

[0046] S1. Construct I-beams 13, set up formwork on the ground and cast the columns 17, or directly hoist the prefabricated columns 17 and fix them to the ground. Then, construct a roof steel truss on top of the columns 17, i.e., I-beams 13 and angle steel 14, and weld multiple I-beams 13 and angle steel 14 together in a grid pattern.

[0047] S2. For the formwork of waffle slab layer 1, firstly, build the lower layer of steel reinforcement frame 6 inside waffle slab layer 1 and fix the steel reinforcement frame 6 to the column 17. Then, the forming cylinder 2 passes through the steel reinforcement frame 6 from bottom to top and is fixed to the steel reinforcement frame 6.

[0048] S3. Casting the waffle slab layer 1: Install multiple forming cylinders 2 in sequence according to the steps in S2, and keep the adjacent two sealing base plates 7 sealed by rotating the sealing base plate 7. Then, build another layer of steel reinforcement frame 6 on the upper half of the forming cylinder 2. Next, pour concrete grout from the outside of the forming cylinder 2. Wait for the concrete grout to solidify to form the waffle slab layer 1. Example 8:

[0049] Based on Embodiment 7, in order to reduce the danger of high-altitude welding, in S2 of this application, a sealing base plate 7 is set below the steel reinforcement frame 6, and the forming cylinder 2 is passed through the sealing base plate 7 and the steel reinforcement frame 6 from bottom to top. The forming cylinder 2 is slightly rotated and then released, so that the hanging buckle 4 of the lower half of the forming cylinder 2 can be fastened to the steel reinforcement frame 6 from top to bottom. The sealing base plate 7 can be suspended at the lower end of the forming cylinder 2 through the cooperation between the connecting ring 8 and the limiting flange 5. Therefore, the forming cylinder 2 and the sealing base plate 7 can maintain their own position stability under the action of gravity, thereby avoiding the danger of high-altitude welding. Example 9:

[0050] Based on Embodiment 8, in order to simplify the construction steps of the waffle slab layer 1, in S3 of this application, the other layer of steel reinforcement frame 6 does not need to be welded or fixed, but is placed directly on the upper part of the lap buckle 3 from top to bottom and supported by the lap buckle 3, thereby simplifying the construction steps of the waffle slab layer 1 and eliminating the need for high-altitude welding.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large-span steel frame for an electronics factory, characterized by: include: The waffle board layer (1) has multiple honeycomb-shaped forming cylinders (2) inside. A steel bar frame (6) is mounted on the outside of the forming cylinder (2). A downwardly bent hanging buckle (4) is fixedly connected to the outer wall of the forming cylinder (2). The hanging buckle (4) is fastened to the outside of the steel bar frame (6) from top to bottom. A sealing base plate (7) is configured as a regular hexagon, and the sealing base plate (7) is suspended from the lower end of the forming cylinder (2), with adjacent sealing base plates (7) fitting together; and The roof steel truss is fixed to the upper end of the column (17), the column (17) is fixed to the ground, and the waffle plate layer (1) is located on the lower layer of the roof steel truss and fixed to the column (17). The steel reinforcement frame (6) has two layers and is located in the upper and lower halves of the forming cylinder (2). The steel reinforcement frame (6) is composed of three groups of steel reinforcement bars tied together at a 60-degree angle to each other. Each group of steel reinforcement bars includes multiple steel bars distributed at equal intervals. The hanging buckle (4) is located in the lower half of the forming cylinder (2). The upper half of the forming cylinder (2) is fixedly provided with a lap buckle (3). Multiple lap buckles (3) and hanging buckles (4) are provided and distributed in a circular array. The lap buckles (3) and hanging buckles (4) are symmetrical to each other. The steel frame (6) located in the upper half of the forming cylinder (2) rests on the lap buckle (3). The sealing base plate (7) is movably sleeved on the lower outer side of the forming cylinder (2). A connecting ring (8) is fixedly provided on the upper surface of the sealing base plate (7). A limiting groove (9) is opened at the lower end of the connecting ring (8). A limiting flange (5) is fixedly provided at the lower end of the forming cylinder (2). The limiting flange (5) is movably embedded in the inner cavity of the limiting groove (9).

2. The large-span steel frame for an electronics factory as described in claim 1, characterized in that: The limiting groove (9) and the limiting flange (5) are both set as frustums. The inner side wall of the limiting groove (9) is bonded with a sealing ring (10), and the side of the sealing base plate (7) is bonded with a sealing gasket (11).

3. The large-span steel frame for an electronic factory building according to claim 2, characterized in that: The inner wall of the connecting ring (8) is provided with a plurality of inner grooves (12) arranged in a ring array, and the inner grooves (12) are trapezoidal.

4. The large-span steel frame for an electronic factory building according to claim 3, characterized in that: The roof steel truss is composed of multiple equally spaced I-beams (13) and multiple equally spaced angle steels (14) welded together. A cap (15) is welded to the lower surface of the I-beams (13). The cap (15) corresponds to the upper end of the forming cylinder (2). A fastening flange (16) is fixedly provided on the lower surface of the cap (15). The fastening flange (16) is inserted into the upper inner cavity of the forming cylinder (2) and is adapted to it.

5. A construction method for a large-span steel frame for an electronics factory according to claim 4, characterized in that: Specifically, the following steps are included: S1. Construct I-beams (13), set up formwork on the ground and cast the shaped columns (17), or directly hoist the prefabricated columns (17) and fix the columns (17) to the ground. Then, erect a roof steel truss on the top of the columns (17), namely I-beams (13) and angle steel (14), and weld multiple I-beams (13) and angle steel (14) together in a grid pattern. S2. For the formwork of waffle slab layer (1), firstly, build the lower layer of steel reinforcement frame (6) inside the waffle slab layer (1) and fix the steel reinforcement frame (6) to the column (17). Then, the forming cylinder (2) passes through the steel reinforcement frame (6) from bottom to top and is fixed to the steel reinforcement frame (6). S3. Casting waffle slab layer (1) to form: Install multiple forming cylinders (2) in sequence according to the steps of S2, and keep the two adjacent sealing bottom plates (7) sealed together by rotating the sealing bottom plate (7). Then, build another layer of steel frame (6) on the upper half of the forming cylinder (2). Then, pour concrete grout from the outside of the forming cylinder (2). Wait for the concrete grout to solidify to form waffle slab layer (1).

6. The construction method according to claim 5, characterized in that: In S2, a sealing base plate (7) is set below the steel reinforcement frame (6), and the forming cylinder (2) is passed through the sealing base plate (7) and the steel reinforcement frame (6) from bottom to top. The forming cylinder (2) is rotated slightly and then loosened. The hanging buckle (4) of the lower half of the forming cylinder (2) can be fastened to the steel reinforcement frame (6) from top to bottom. The sealing base plate (7) can be suspended at the lower end of the forming cylinder (2) through the cooperation between the connecting ring (8) and the limiting flange (5).

7. The construction method according to claim 6, characterized in that: In S3, another layer of steel reinforcement frame (6) does not need to be welded or fixed. It is placed directly on the upper part of the lap buckle (3) from top to bottom and supported by the lap buckle (3).

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