Enclosed space formwork reinforcement inner capsule and construction method

Abstract

The present application relates to the field of building construction, particularly to a closed space formwork reinforcing inner bag and a construction method. The closed space formwork reinforcing inner bag comprises an inner bag body and an inflation pipe. The inner bag body is arranged inside a second structural steel frame. One end of the inflation pipe is connected to the inner bag body, and the other end of the inflation pipe passes through the second steel frame and is connected to a medium filling device. The medium filling device is used to pump filling medium into the inner bag body through the inflation pipe, so that the inner bag body is inflated and adheres to the inner surface of the second structural steel frame. Using the formwork reinforcing inner bag, workers do not need to enter the closed environment to reinforce the formwork inside the structural steel frame, effectively avoiding the risk of injury or death caused by lack of oxygen and suffocation during the construction process in the limited closed space. The entire construction process is simple to operate, and a large amount of construction time is saved.

Description

Technical Field

[0001] This invention relates to the field of building construction, and in particular to a reinforced inner bladder for enclosed space formwork and its construction method. Background Technology

[0002] During construction, due to the design of the building structure, there are some enclosed spaces in the building. When constructing these enclosed spaces, workers need to enter the enclosed spaces through the reserved openings in these spaces and reinforce the formwork.

[0003] like Figure 1 and Figure 2 As shown, the reinforcement is fixed by setting up reinforcement templates and reinforcement timbers on both the inner and outer sides of the first structural steel frame, using screws to penetrate the reinforcement templates and reinforcement timbers on both sides, then attaching steel pipes to the reinforcement timbers, and installing fasteners at the ends of the screws to press the steel pipes.

[0004] After the above process is completed, the bottom of the first structural steel frame needs to be supported. Therefore, the workers need to enter the first structural steel frame through the reserved opening, bring the support system into the first structural steel frame, and complete the assembly inside the first structural steel frame. Due to the limited space, after the support system is built, the workers' entry and exit are greatly inconvenient due to the remaining internal space. Furthermore, because this part of the space is highly enclosed, there is a safety hazard of suffocation caused by blocking the reserved opening during construction. Summary of the Invention

[0005] Based on this, it is necessary to provide a closed space template reinforcement inner bladder and construction method to address the above-mentioned technical problems. Using this template reinforcement inner bladder, workers do not need to enter the closed environment to reinforce the template inside the structural steel frame, effectively avoiding the risk of injury or death due to lack of oxygen and suffocation that workers may face during construction in a limited closed space.

[0006] This invention provides a closed-space template-reinforced inner bladder, comprising:

[0007] The inner bladder body is located inside the steel frame of the second structure;

[0008] An inflation tube is connected at one end to the inner bladder body and at the other end through the second steel frame and connected to a medium filling device. The medium filling device is used to pump the filling medium into the inner bladder body through the inflation tube, so that the inner bladder body expands and fits against the inner surface of the second structural steel frame.

[0009] In one embodiment, the inner bladder body includes four flat surfaces and two folded surfaces. The four flat surfaces form the top surface, bottom surface, and two opposite sides of the inner bladder body. The two folded surfaces form the main surface of the inner bladder body connected to the inflation tube and the back surface opposite to the main surface. The four flat surfaces can be rolled into a cylindrical structure for passing through the second structural steel frame.

[0010] In one embodiment, the four flat surfaces include two first flat surfaces and two second flat surfaces. The thickness of the second flat surfaces is different from the thickness of the first flat surfaces and the folded surfaces, and the connection between the second flat surfaces and the first flat surfaces and the folded surfaces is arranged in a stepped structure.

[0011] In one embodiment, the second flat surface includes a plurality of first strip-shaped portions and a plurality of second strip-shaped portions, the first strip-shaped portions and the second strip-shaped portions having a predetermined thickness difference, the first strip-shaped portions and the second strip-shaped portions being arranged along the direction from the main surface to the back surface of the inner capsule body, and the plurality of first strip-shaped portions and the plurality of second strip-shaped portions intersecting and connecting with each other.

[0012] The present invention also provides a method for constructing an enclosed space, based on an enclosed space template reinforcement inner bladder as described in any of the above embodiments, the method comprising:

[0013] A large formwork system is set up outside the second structural steel frame, and diagonal bracing is used on the outside of the large formwork system to support it.

[0014] The inner bladder body is placed inside the second structural steel frame, and one end of the inflation tube connecting the inner bladder body passes through the second structural steel frame and is located outside the second structural steel frame.

[0015] The filling medium is pumped into the inner bladder body through the inflation tube to inflate the inner bladder body and make it fit against the inner surface of the second structural steel frame.

[0016] The second structural concrete is poured into the steel frame of the second structure. After the second structural concrete has solidified, the filling medium inside the inner bladder body is extracted, and the air holes of the closed space formed by the second structural concrete are sealed.

[0017] In one embodiment, the step of placing the inner bladder body within the second structural steel reinforcement frame includes:

[0018] The four flat surfaces of the inner capsule body are rolled into a cylindrical structure;

[0019] The cylindrical structure is inserted into the second structural steel frame along the gap, and then unfolds back to its original state after being inserted into the second structural steel frame.

[0020] In one embodiment, after the step of extracting the filling medium from the inner capsule body, the method further includes:

[0021] Pulling the inflation tube causes a tear at the junction of the two second flat surfaces with the first flat surface and the folded surface, thereby facilitating the extraction of the inner capsule body from the enclosed space.

[0022] In one embodiment, after the step of extracting the filling medium from the inner capsule body, the method further includes:

[0023] The inflation tube is pushed into the enclosed space.

[0024] The aforementioned enclosed space template reinforcement bladder and construction method involves setting up a large template system outside the second structural steel reinforcement frame, and using diagonal braces on the outside of the large template system for support. The inner bladder body is then inserted along the gaps in the second structural steel reinforcement frame, with one end of the inflation tube connecting the inner bladder body positioned outside the second structural steel reinforcement frame. Filling medium is then pumped into the inner bladder body through the inflation tube, causing the inner bladder body to expand and adhere to the inner surface of the second structural steel reinforcement frame, thus serving as a supporting template inside the second structural steel reinforcement frame. Finally, second structural concrete is poured into the second structural steel reinforcement frame. After the second structural concrete has solidified, the filling medium inside the inner bladder body can be removed, and the inflation holes in the enclosed space formed by the second structural concrete can be sealed. Using this template reinforcement bladder eliminates the need for workers to enter the enclosed environment to reinforce the template inside the structural steel reinforcement frame, effectively avoiding the risk of injury or death due to oxygen deficiency and suffocation that may occur during construction in a confined enclosed space. Furthermore, the template reinforcement bladder only requires filling the bladder body with foam or other media using a medium filling device such as a pressure pump. The bladder body serves as the supporting template inside the steel reinforcement frame of the second structure, while the reinforcement system is formed on the outside by using a large template system with diagonal bracing. After the second structure concrete is poured, the filling material inside the bladder body is removed, and finally the air holes of the closed space formed by the second structure concrete are sealed. The entire construction process is simple to operate and reduces a lot of construction time. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is one of the schematic diagrams of traditional enclosed space formwork reinforcement methods;

[0027] Figure 2 This is the second schematic diagram of a traditional enclosed space formwork reinforcement method;

[0028] Figure 3 This is one of the schematic diagrams of the enclosed space template reinforcement method provided by the present invention;

[0029] Figure 4 This is the second schematic diagram of the enclosed space template reinforcement method provided by the present invention;

[0030] Figure 5 This is one of the structural schematic diagrams of the inner capsule body provided by the present invention;

[0031] Figure 6 A schematic diagram of the surface region division of the inner capsule body provided by the present invention;

[0032] Figure 7 This is the second schematic diagram of the internal capsule body provided by the present invention;

[0033] Figure 8 This is a schematic diagram of the structure of the folded surface provided by the present invention.

[0034] Figure label:

[0035] 10. Reserved opening; 11. First structural steel reinforcement frame; 12. Outer formwork; 13. Outer timber; 14. Inner formwork; 15. Inner timber; 16. Steel pipe; 17. Screw rod; 18. Support system; 19. First structural concrete; 100. Large formwork system; 200. Diagonal brace; 300. Second structural steel reinforcement frame; 410. Inner bladder body; 411. First flat surface; 412. Second flat surface; 4121. First strip section; 4122. Second strip section; 413. Folded surface; 420. Inflatable pipe; 500. Second structural concrete. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on 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.

[0037] like Figure 1 and Figure 2 As shown, the traditional enclosed space formwork reinforcement method specifically includes: setting an inner formwork 14 and an inner timber 15 in sequence inside the first structural steel frame 11, setting an outer formwork 12 and an outer timber 13 in sequence outside the first structural steel frame 11, and using multiple screws 17 to pass through the outer timber 13, the outer formwork 12, the inner formwork 14, and the inner timber 15 in sequence. Then, steel pipes 16 are set above and below the screws 17, and the steel pipes 16 are attached to the outer timber 13 or the inner timber 15. Then, fasteners are installed at the ends of the screws 17, and the fasteners are attached only to the steel pipes 16, so that the steel pipes 16 can shape the outer timber 13 and the inner timber 15. After the aforementioned components are completed, workers enter the enclosed space formed by the first structural steel frame 11 through the reserved opening 10 above it. They then move the components of the support system 18 one by one into the enclosed space and install the support system 18 within it to support the formwork at the top of the first structural steel frame 11. First structural concrete 19 is poured inside the first structural steel frame 11. After the first structural concrete 19 solidifies, workers need to re-enter the enclosed space to dismantle the support system 18, moving it out of the enclosed space one by one, and then sealing the reserved opening 10 with concrete.

[0038] The following is combined with Figures 3 to 8 This invention describes the enclosed space template reinforcement inner bladder and its construction method.

[0039] like Figure 3 and Figure 4 As shown, in one embodiment, a closed space template reinforcement inner bladder includes an inner bladder body 410 and an inflation tube 420; the inner bladder body 410 is disposed inside the second structural steel frame 300; one end of the inflation tube 420 is connected to the inner bladder body 410, and the other end passes through the second steel frame and is connected to a medium filling device, which is used to pump the filling medium into the inner bladder body 410 through the inflation tube 420 so that the inner bladder body 410 expands and adheres to the inner surface of the second structural steel frame 300.

[0040] In the aforementioned enclosed space template reinforcement bladder, a large template system 100 is set up outside the second structural steel frame 300 during use, and diagonal braces 200 are used on the outside of the large template system 100 to support it. Then, the inner bladder body 410 is inserted along the gap of the second structural steel frame 300, and one end of the inflation tube 420 connecting the inner bladder body 410 is located outside the second structural steel frame 300. Then, filling medium is pumped into the inner bladder body 410 through the inflation tube 420 to make the inner bladder body 410 expand and fit against the inner surface of the second structural steel frame 300, thus serving as a support template inside the second structural steel frame 300. Finally, second structural concrete 500 is poured into the second structural steel frame 300. After the second structural concrete 500 solidifies, the filling medium inside the inner bladder body 410 can be extracted, and the inflation holes of the enclosed space formed by the second structural concrete 500 can be sealed. Using this template to reinforce the inner bladder eliminates the need for workers to enter a confined environment to reinforce the formwork inside the structural steel frame, effectively avoiding the risk of injury or death due to oxygen deficiency and suffocation that may occur during construction in a confined space. Furthermore, this template-reinforced inner bladder only requires filling the inner bladder body 410 with foam or other media using a filling device such as a pressure pump. The inner bladder body 410 serves as the supporting template inside the second structural steel frame 300, while the outer side uses a large template system 100 plus diagonal bracing 200 to form a reinforcement system. After pouring the second structural concrete 500, the filling material inside the inner bladder body 410 is removed, and finally, the air holes in the enclosed space formed by the second structural concrete 500 are sealed. The entire construction process is simple and reduces a significant amount of construction time.

[0041] like Figure 5 As shown, in one embodiment, the inner capsule body 410 includes four flat surfaces and two folded surfaces 413. The four flat surfaces constitute the top surface, bottom surface and two opposite sides of the inner capsule body 410. The two folded surfaces 413 constitute the main surface of the inner capsule body 410 connected to the inflation tube 420 and the back surface opposite to the main surface. The four flat surfaces can be rolled into a cylindrical structure for passing through the second structural steel frame 300.

[0042] Specifically, when the inner bladder body 410 moves into the second structural steel frame 300, the four flat surfaces are first aligned, then the four flat surfaces are rolled up, and finally a cylindrical structure is formed. At this time, the cylindrical structure can be inserted into the second structural steel frame 300 along the gap. The whole process is simple to operate and does not require special settings for the second structural steel frame 300, such as a reserved opening 10 for workers to enter and exit.

[0043] In one embodiment, the four flat surfaces include two first flat surfaces 411 and two second flat surfaces 412. The thickness of the second flat surface 412 is different from the thickness of the first flat surface 411 and the folded surface 413, and the connection between the second flat surface 412 and the first flat surface 411 and the folded surface 413 is arranged in a stepped structure.

[0044] Specifically, such as Figure 6 As shown, the inner capsule body 410 has 1 to 6 surfaces, of which surfaces 1, 3 and 5 are directly exposed to the current viewpoint, and surfaces 2, 4 and 6 are not directly observable from the current viewpoint.

[0045] Furthermore, the two first flat surfaces 411 are surfaces 3 and 4, the two second flat surfaces 412 are surfaces 5 and 6, and the two folded surfaces 413 are surfaces 1 and 2, with surface 1 being the surface connected to the inflation tube 420. Since the thickness of surfaces 5 and 6 is different from the other surfaces, while surfaces 1, 2, 3, and 4 have the same thickness, and the connection between surfaces 5 and 6 is arranged in a stepped structure, the inner bladder body 410 is prone to tearing under stress. The torn inner bladder body 410 can then be easily removed from the smaller inflation hole.

[0046] like Figure 7 and Figure 8 As shown, in one embodiment, the second flat surface 412 includes a plurality of first strip portions 4121 and a plurality of second strip portions 4122. The first strip portions 4121 and the second strip portions 4122 have a predetermined thickness difference. The first strip portions 4121 and the second strip portions 4122 are arranged along the direction from the main surface to the back surface of the inner capsule body 410, and the plurality of first strip portions 4121 and the plurality of second strip portions 4122 are interlaced and connected to each other.

[0047] Specifically, since there are multiple first strips 4121 and multiple second strips 4122, and the multiple first strips 4121 and multiple second strips 4122 have different thicknesses and are arranged in an alternating manner, when subjected to force, each first strip 4121 and second strip 4122 connection point is prone to tearing, thereby making the inner bladder body 410 more loose, and easier to pass through the smaller inflation hole than a single surface tear.

[0048] In one embodiment, a method for constructing an enclosed space, based on an enclosed space template reinforcement inner bladder according to any of the above embodiments, includes the following steps:

[0049] A large formwork system is set up outside the second structural steel frame, and diagonal bracing is used on the outside of the large formwork system to support it.

[0050] The inner bladder body is placed inside the second structural steel frame, and one end of the inflation tube connecting the inner bladder body passes through the second structural steel frame and is located outside the second structural steel frame.

[0051] The filling medium is pumped into the inner bladder body through the inflation tube to inflate the inner bladder body and make it fit against the inner surface of the second structural steel frame.

[0052] The second structural concrete is poured into the steel frame of the second structure. After the second structural concrete has solidified, the filling medium inside the inner bladder is extracted, and the air holes in the closed space formed by the second structural concrete are sealed.

[0053] The aforementioned enclosed space construction method eliminates the need for workers to enter the enclosed environment to reinforce the formwork inside the structural steel frame, effectively avoiding the risk of injury or death due to oxygen deficiency and suffocation that may occur during construction in a confined enclosed space. Furthermore, this method only requires using a media filling device such as a pressure pump to fill the inner bladder with foam or other media. The inner bladder serves as the supporting formwork inside the second structural steel frame, while a large formwork system with diagonal bracing forms the reinforcement system on the outside. After the second structural concrete is poured, the filling material inside the inner bladder is removed, and finally, the air holes in the enclosed space formed by the second structural concrete are sealed. The entire construction process is simple and reduces construction time significantly.

[0054] In one embodiment, the inner bladder body is disposed within the second structural steel frame, comprising the following steps:

[0055] The four flat surfaces of the inner capsule are rolled into a cylindrical structure.

[0056] The cylindrical structure is inserted into the second structural steel frame through the gaps in the second structural steel frame, and then unfolds back to its original state after being inserted into the second structural steel frame.

[0057] Specifically, when the inner bladder body moves into the second structural steel frame, the four flat surfaces are first aligned, then the four flat surfaces are rolled up, and finally a cylindrical structure is formed. At this time, the cylindrical structure can be inserted into the second structural steel frame along the gap. The whole process is simple to operate and does not require special settings for the second structural steel frame, such as reserved openings for workers to enter and exit.

[0058] In one embodiment, after removing the filling medium from the inner capsule body, the method further includes the step of pulling the inflation tube to create a tear at the junction of the two second flat surfaces with the first flat surface and the folded surface, thereby facilitating the removal of the inner capsule body from the enclosed space.

[0059] Specifically, the inner capsule body is prone to tearing under stress, and the torn inner capsule body is easier to remove through the smaller inflation port. The second straight surface is composed of multiple first and second strip-shaped portions, each with varying thicknesses and staggered arrangement. Therefore, under stress, each connection point between the first and second strip-shaped portions is prone to tearing, making the inner capsule body more loosely structured and easier to pass through the smaller inflation port compared to a single-surface tear.

[0060] In one embodiment, the filling medium inside the inner capsule body is extracted, followed by the step of pushing an inflation tube into the closed space.

[0061] Specifically, once the enclosed space is no longer needed, the inner bladder and inflation tube can be left inside the enclosed space, reducing workload and speeding up construction.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A type of enclosed space template-reinforced inner bladder, characterized in that, include: The inner bladder body is located inside the steel frame of the second structure; An inflation tube is connected at one end to the inner bladder body and at the other end through the second structural steel frame and connected to a medium filling device. The medium filling device is used to pump the filling medium into the inner bladder body through the inflation tube so that the inner bladder body expands and fits against the inner surface of the second structural steel frame. The inner bladder body includes four flat surfaces and two folded surfaces. The four flat surfaces constitute the top surface, bottom surface and two opposite sides of the inner bladder body. The two folded surfaces constitute the main surface of the inner bladder body connected to the inflation tube and the back surface opposite to the main surface. The four flat surfaces can be rolled into a cylindrical structure for passing through the second structural steel frame. The four flat surfaces include two first flat surfaces and two second flat surfaces. The thickness of the second flat surface is different from the thickness of the first flat surface and the folded surface. The connection between the second flat surface and the first flat surface and the folded surface is arranged in a stepped structure. Pulling the inflation tube causes a tear at the junction of the two second flat surfaces with the first flat surface and the folded surface, thereby facilitating the extraction of the inner capsule body from the enclosed space.

2. The enclosed space template reinforced inner bladder according to claim 1, characterized in that, The second flat surface includes a plurality of first strip-shaped portions and a plurality of second strip-shaped portions. The first strip-shaped portions and the second strip-shaped portions have a predetermined thickness difference. The first strip-shaped portions and the second strip-shaped portions are arranged along the direction from the main surface to the back surface of the inner capsule body, and the plurality of first strip-shaped portions and the plurality of second strip-shaped portions intersect and connect with each other.

3. A method for constructing an enclosed space, based on the enclosed space template reinforcement inner bladder as described in any one of claims 1 to 2, characterized in that, The method includes: A large formwork system is set up outside the second structural steel frame, and diagonal bracing is used on the outside of the large formwork system to support it. The inner bladder body is placed inside the second structural steel frame, and one end of the inflation tube connecting the inner bladder body passes through the second structural steel frame and is located outside the second structural steel frame. The four flat surfaces of the inner capsule body are rolled into a cylindrical structure; The cylindrical structure is inserted into the second structural steel frame along the gap of the second structural steel frame, and then unfolds back to its original state after being inserted into the second structural steel frame; The filling medium is pumped into the inner bladder body through the inflation tube to inflate the inner bladder body and make it fit against the inner surface of the second structural steel frame. The second structural concrete is poured into the second structural steel frame. After the second structural concrete has solidified, the filling medium inside the inner bladder body is extracted and the air holes of the closed space formed by the second structural concrete are sealed. Pulling the inflation tube causes a tear at the junction of the two second flat surfaces with the first flat surface and the folded surface, thereby facilitating the extraction of the inner capsule body from the enclosed space.

4. The method for constructing an enclosed space according to claim 3, characterized in that, After extracting the filling medium from the inner capsule body, the procedure further includes: The inflation tube is pushed into the enclosed space.

Images