Construction technology of concrete airbag intercepting with different node labels

Abstract

The application provides a node different label concrete air bag interception construction process and belongs to the technical field of concrete pouring operation and comprises the following steps: S1, inserting an air bag interception device into the bottom of a beam structure to form a concrete interception barrier; S2, arranging an air bag buffer device at the bottom of the air bag interception device inserted into the beam structure to control the expansion of the air bag buffer device to form a concrete buffer barrier; and S3, pouring concrete in the corresponding area of a column structure, paying attention to the sound emitted by a pressure relief alarm pipeline during the concrete pouring process, reducing the concrete pouring rate, changing the position of the pouring drop point, timely vibrating the concrete or stopping the concrete pouring after the sound is emitted by the pressure relief alarm pipeline. The application can absorb the initial impact momentum through the buffer device, realize closed separation through the interception device, solve the problem of insufficient stability of a single structure, timely emit a sound alarm through the pressure relief alarm pipeline, realize early warning, and ensure that the concrete pouring construction operation is safe and efficient.

Description

Technical Field

[0001] This invention relates to the field of concrete pouring operation technology, and in particular to the construction process of airbag interception of concrete at different nodes. Background Technology

[0002] Article 13.8.9 of the "Technical Specification for Concrete Structures of High-Rise Buildings" (JGJ3-2010) stipulates that when the design strength grade of the concrete for structural columns and walls is higher than that for beams and slabs, separation measures should be taken in the boundary area. The separation point should be in the lower strength grade component, and the distance from the edge of the higher strength grade component should not be less than 500mm. The higher strength grade concrete should be poured first, followed by the lower strength grade concrete.

[0003] In existing technologies, airbag interception construction can intercept concrete of different strength grades. Considering the large concrete interception pressure and the low overall support strength of the airbag, rigid support structures are set inside or outside the airbag during actual operation to ensure the accuracy of the position of the airbag-related structures during the airbag interception construction, avoid the airbag structure from shifting or even being damaged during concrete pouring, ensure the normal and stable progress of concrete airbag interception construction, and ensure that the final cast beams and columns meet the design requirements.

[0004] However, in actual construction, a single airbag interception structure still puts considerable pressure on high-strength concrete, especially in extreme cases where the interception area is large and the concrete pouring rate is fast. In such cases, the airbag interception structure may still experience small-scale displacement and instability, affecting the normal pouring of concrete. Furthermore, existing airbag interception structures only have a relatively simple sealing and interception function. When the pressure or position of the airbag interception structure changes, there is no way to provide early warning. Observation can only be carried out visually after pouring is completed or after an accident occurs, which affects the normal construction progress of the project and poses safety hazards. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a construction process for concrete airbag interception at different node grades. This invention absorbs the initial impact momentum through a buffer device, and the interception device achieves closed separation, solving the problem of insufficient stability of a single structure. It can also promptly issue an audible alarm through a pressure relief alarm pipe, achieving early warning and ensuring the safe and efficient conduct of concrete pouring operations.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0007] A construction process for concrete airbag interception at different node grades is used for pouring concrete within beam and column structures. An airbag interception construction device is used, comprising an airbag interception unit and an airbag buffer unit. The airbag buffer unit includes a buffer airbag with a pressure relief alarm pipe on its surface. The process includes the following steps: S1, inserting the airbag interception unit to the bottom of the beam structure and controlling its expansion to form a relatively closed concrete interception barrier; S2, placing the airbag buffer unit near the column structure and inserting it to the bottom of the beam structure, then controlling its expansion to form a concrete buffer barrier; S3, pouring concrete into the corresponding area of ​​the column structure. During the concrete pouring process, monitor the sound emitted by the pressure relief alarm pipe. When the pressure relief alarm sounds, reduce the concrete pouring rate, change the pouring point, vibrate the concrete promptly, or stop the concrete pouring.

[0008] By using a combination of buffer and interception devices to resist concrete impact in stages, the buffer devices absorb the initial impact momentum, while the interception devices achieve closed separation, thus solving the problem of insufficient stability of a single structure. Furthermore, the pressure relief alarm pipe can promptly issue an audible alarm to provide early warning, reminding on-site personnel to reduce the concrete pouring rate, change the pouring point, vibrate the concrete in a timely manner, or stop the concrete pouring, ensuring the safe and efficient progress of construction operations.

[0009] Preferably, when the airbag interception device and the airbag buffer device are subjected to different impact pressures, the pressure relief alarm pipe is controlled to emit sound warnings of different loudnesses; when the loudness of the airflow sound emitted from the pressure relief alarm pipe is low, the concrete pouring rate is reduced, the pouring point is changed, and the concrete is vibrated in time; when the loudness of the airflow sound emitted from the pressure relief alarm pipe is high, the concrete pouring is stopped.

[0010] The pressure relief alarm pipeline can emit alarms of different loudness depending on the pressure state of the airbag, directly and quickly reminding on-site personnel of the airbag's pressure status, so as to make different pouring reminders and ensure that concrete pouring is carried out quickly, safely and efficiently.

[0011] Preferably, after concrete pouring stops, the corresponding airbag interception device and airbag buffer device on site should be inspected immediately, and concrete pouring should only resume after confirming that they have returned to normal.

[0012] After verifying the stability of the relevant structure, subsequent pouring should be carried out to avoid the structure failing to meet design requirements after complete pouring, which could cause greater losses and also to prevent safety accidents during the pouring process.

[0013] Preferably, the airbag buffer device is a temporary structure that is removed when the concrete pouring is almost finished.

[0014] Both the buffer and interception devices are modularly designed, and the number of airbags can be adjusted according to the beam width; moreover, the devices can be disassembled and reused, reducing construction costs.

[0015] Preferably, the airbag interception device includes interception airbags, and the number of buffer airbags is less than the number of interception airbags. The buffer airbags are located in the middle of the beam structure to intercept and buffer the flowing concrete.

[0016] During the interception process, the buffer airbag is in an inflated state, which can form an interception and buffer structure in the middle of the beam formwork, controlling the concrete to flow from both sides of the buffer airbag towards the airbag interception device, thus achieving efficient interception and buffering.

[0017] Preferably, at least two buffer airbags are provided, and the two buffer airbags are arranged at intervals in the middle of the beam formwork.

[0018] Through the above design, the concrete passing through the buffer airbags on both sides can flow inwards to impact and turbulent the concrete flowing through the middle. The concrete on the outside and inside of the buffer airbags can disturb each other and collide with each other to reduce the flow velocity, further weakening the impact on the surface of the outer airbag interception device and ensuring the stability of the airbag interception device during the airbag interception process.

[0019] Preferably, a pressure relief valve is installed inside the pressure relief alarm pipeline, and a sound-emitting structure is installed at the outlet end of the pressure relief alarm pipeline. When the air pressure inside the buffer airbag is less than a set threshold, the pressure relief valve inside the pressure relief alarm pipeline is in a closed state.

[0020] The system utilizes airflow to drive a related sound-generating structure, producing continuous vibrations that trigger a piercing alarm to alert workers to excessively rapid concrete pouring. This structural design is simple and convenient, requiring no additional electrical components for coordination. The alarm is highly effective, allowing workers to keep their eyes focused on the side where the concrete is being poured and detect any abnormalities simply by listening to the piercing alarm sound. It is convenient, efficient, and accurate.

[0021] Preferably, the outer side of the buffer airbag is also provided with a pumping device and a gas delivery pipe, and the buffer airbag is connected to the pumping device through the gas delivery pipe. The pumping device is started to pump gas into the buffer airbag.

[0022] The above structure enables continuous pumping of air into the buffer airbag, ensuring that the buffer airbag is in a normally inflated state and preventing it from failing to achieve the intended interception and buffering effect after contraction. It can also increase the gas pressure inside the buffer airbag, thereby increasing the rate at which gas is discharged from the pressure relief alarm pipe and increasing the loudness of the gas alarm, issuing alarm sounds of different loudness according to different pressure states.

[0023] Preferably, a first pressure detection element is provided inside the buffer airbag. When the pressure detected by the first pressure detection element is less than a set threshold, the air pumping device is in a closed state; when the pressure detected by the first pressure detection element is greater than the set threshold, the air pumping device is controlled to start after a delay and pump gas into the buffer airbag.

[0024] Through the above structural design, the starting status of the air pumping equipment can be automatically detected and judged. At the same time, it can also quickly issue an alarm based on the detection results, so as to avoid the continuous increase of pressure on the buffer airbag during concrete pouring, which would cause excessive impact on the buffer airbag, buffer back plate and other related structures. This ensures that the buffer airbag, buffer back plate and related structures can play a normal and orderly role in interception and buffering.

[0025] Preferably, the airbag interception device includes an interception backplate, and a second pressure detection element is provided between the interception backplate and the beam reinforcement cage. When the pressure detected by the second pressure detection element is greater than a set threshold, the pumping device is activated to quickly pump gas into the buffer airbag.

[0026] Through the above structural and pouring process design, on-site personnel can directly judge the pressure status of the airbag interception device and the airbag buffer device by the different sound states emitted from the pressure relief alarm pipe. The sound warnings of different loudnesses remind on-site personnel of the pressure status of the airbag interception device and the airbag buffer device, thereby judging the sustainability and safety of the construction and making corresponding adjustments. While maximizing the concrete pouring rate, it avoids excessive impact pressure on the airbag interception device during the concrete pouring process, which may cause damage or displacement, and prevents safety accidents during the concrete pouring process.

[0027] The beneficial effects of this invention are as follows:

[0028] The dual-structure design of this invention uses a buffer device and an interception device to resist concrete impact in stages. The buffer device absorbs the initial impact momentum, and the interception device achieves closed separation, solving the problem of insufficient stability of a single structure. In addition, it can also issue an audible alarm in time through a pressure relief alarm pipe to achieve early warning, reminding on-site personnel to reduce the concrete pouring rate, change the pouring point, vibrate the concrete in time, or stop the concrete pouring, so as to ensure the safe and efficient conduct of concrete pouring construction operations. Attached Figure Description

[0029] Figure 1 This is a process flow diagram of the present invention.

[0030] Figure 2 This is a three-dimensional structural diagram of the airbag interception construction equipment of the present invention after it has been deployed.

[0031] Figure 3 For the present invention Figure 2 A schematic diagram of the main structure.

[0032] Figure 4 For the present invention Figure 2 A top-view structural diagram.

[0033] Figure 5 For the present invention Figure 3 A magnified structural diagram at point A.

[0034] Figure 6 For the present invention Figure 4 A magnified structural diagram at point B.

[0035] In the diagram: 100, pouring platform; 200, beam structure; 210, beam formwork; 220, beam reinforcement cage; 300, column structure; 310, column formwork; 320, column reinforcement cage; 400, airbag interception device; 410, interception airbag; 420, interception back plate; 421, first arc-shaped block; 430, second pressure detection element; 500, airbag buffer device; 510, buffer airbag; 511, connecting pipe; 512, pressure relief alarm pipe; 520, buffer back plate; 521, second arc-shaped block; 530, air pumping equipment; 540, gas delivery pipe. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] See attached document Figure 1 - Appendix Figure 6 The construction process of concrete airbag interception with different node grades involves pouring concrete within the beam structure 200 and column structure 300. There are multiple beam structures 200 around the horizontal plane of the column structure 300. Airbag interception devices 400 are arranged at predetermined positions within the multiple beam structures 200. The airbag interception devices 400 close the vertical plane at the predetermined position within the beam structure 200, preventing concrete from passing through and achieving efficient interception of concrete.

[0038] The beam structure 200 here includes beam formwork 210 and a horizontally arranged beam reinforcement cage 220 located within the beam formwork 210. The column structure 300 here includes column formwork 310 and a vertically arranged column reinforcement cage 320 located within the column formwork 310. During construction, following the construction process requirement of strong column and weak beam, high-strength concrete is first poured into the column structure 300 inside the multiple airbag interception devices 400 to realize the pouring of the building structure column. Low-strength concrete is poured into the position on one side of the raw material column structure 300 outside the multiple airbag interception devices 400 to realize the pouring of the building structure beam. The airbag interception device 400 should be inserted into the gaps in the beam reinforcement cage 220 and inflated to form a relatively closed gas-sealed structure to achieve efficient interception of concrete and ensure the normal construction of the project.

[0039] The airbag interception device 400 here includes a rigid interception back plate 420 and a flexible interception airbag 410. The interception back plate 420 is in a comb-like state. Before concrete pouring, the interception back plate 420 is inserted to the bottom position with the open side facing down and is fixed to the beam reinforcement cage 220. The interception back plate 420 and the beam reinforcement cage 220 can be fixed with steel wire. Preferably, the interception back plate 420 is abutted against the steel hoop at the most predetermined position to ensure the stability of the interception back plate 420 under subsequent concrete impact.

[0040] The intercepting airbags 410 here can be pre-vented and fixed to the intercepting backplate 420, and arranged synchronously with the intercepting backplate 420. Alternatively, after the intercepting backplate 420 is vertically arranged, multiple intercepting airbags 410 can be vertically inserted into a predetermined position and fixed before being pumped. After the intercepting airbags 410 are pumped and expanded, the two adjacent intercepting airbags 410 squeeze each other to fill the gap between them, forming a relatively sealed closed structure to prevent concrete from passing through.

[0041] Multiple first arc-shaped blocks 421 are provided on the side wall surface of the interceptor backplate 420 near the column structure 300. The first arc-shaped blocks 421 are arranged at intervals with the same density as the interceptor airbags 410. The outer surface of the first arc-shaped blocks 421 is arc-shaped. The arc-shaped surface of the first arc-shaped blocks 421 is adapted to the outer surface of the interceptor airbag 410, which can increase the force contact area, reduce the local unit area pressure of the interceptor airbag 410, ensure the stable interception of the interceptor airbag 410, and avoid the interceptor airbag 410 from leaking or being damaged due to excessive local pressure.

[0042] In summary, by arranging multiple intercepting backplates 420 and intercepting airbags 410 in different beam structures 200 outside the column structure 300, multiple vertical sealed intercepting structures are formed in multiple beam structures 200, preventing concrete from crossing the airbag intercepting device 400 and entering the area where low-strength concrete is poured, thus avoiding cross-contamination of concrete of different strength grades and ensuring that the construction of beams and columns meets the design process requirements.

[0043] Unlike existing technologies, this invention also includes an airbag buffer device 500, which is located inside the airbag interception device 400, specifically near the column structure 300. The airbag interception device 400 and the airbag buffer device 500 are arranged at intervals. The airbag buffer device 500 can buffer and intercept concrete from inside the airbag interception device 400, preventing excessive and rapid concrete from directly impacting the inner surface of the airbag interception device 400 with high intensity. This ensures the relative stability of the airbag interception device 400 during the concrete pouring and interception process, and prevents the airbag interception device 400 from being damaged by impact or from shifting its position, thus affecting the concrete interception.

[0044] Specifically, the airbag buffer device 500 here includes a buffer back plate 520 and a buffer airbag 510. A second arc-shaped block 521, similar to the first arc-shaped block 421, is also arranged on one side surface, which can provide more effective and stable support for the buffer airbag 510. The buffer back plate 520 also has a comb-like structure with the opening facing downward. The structure and arrangement requirements of the buffer back plate 520 are similar to those of the interception back plate 420, so they will not be described in detail here.

[0045] The difference between the airbag buffer device 500 and the airbag interception device 400 is that the purpose of the airbag buffer device 500 is to buffer and intercept excessive concrete with too fast a flow rate, rather than to block and intercept it. Its function is to absorb the inertial impact momentum of the concrete on the front side to avoid excessive impact on the outer airbag interception device 400.

[0046] Furthermore, the airbag buffer device 500 here is a temporary structure. When the concrete pouring is almost finished, the airbag 510, the buffer back plate 520 and other related structures need to be pulled out to avoid the airbag 510, the buffer back plate 520 and other related structures remaining in the beam structure 200 and affecting the normal pouring structure and strength of the building.

[0047] Furthermore, the number of buffer airbags 510 here is less than the number of intercepting airbags 410. The number of buffer airbags 510 is selected according to the width of the beam formwork 210, in order to accommodate... Figure 6Taking this example, two buffer airbags 510 are arranged here, and the two buffer airbags 510 are located in the middle of the beam formwork 210 to intercept and buffer the flowing concrete. During the interception process, the buffer airbags 510 are in an inflated state, which can form an interception and buffer structure in the middle of the beam formwork 210, and control the concrete to flow from both sides of the buffer airbags 510 toward the airbag interception device 400, so as to achieve efficient interception and buffering.

[0048] It should be noted that the present invention is illustrated by two buffer airbags 510, but the above should not be construed as a limitation of the present invention. Those skilled in the art can arbitrarily select the number of buffer airbags 510 according to the width of the beam template 210.

[0049] Taking two buffer airbags 510 as an example, the two buffer airbags 510 are preferably arranged at intervals in the middle of the beam formwork 210. There are gaps between the two buffer airbags 510 and on the outside to allow concrete to pass through. The amount of concrete passing through the position between the two buffer airbags 510 is small, and the impact on the airbag interception device 400 is weak. The purpose is to allow more concrete to quickly pass through the buffer airbags 510 and enter the outer position, so as to improve the concrete pouring rate in the overall process.

[0050] Meanwhile, there are also gaps on the outer sides of the two buffer airbags 510 for concrete to pass through. After the concrete passes through the outer side of the buffer airbag 510, since there is an area on the outer side of the buffer airbag 510 for the concrete to enter, the concrete will not only flow along the length of the beam formwork 210, but also flow in an inward inclined direction. Overall, the concrete passing through the buffer airbag 510 flows in an inward inclined direction towards the beam formwork 210. Through the above design, the concrete on both sides passing through the buffer airbag 510 can flow inward and impact and turbulent the concrete flowing through the middle position. The concrete on the outer side and the inner side of the buffer airbag 510 can disturb each other and collide with each other to reduce the flow velocity, further weakening the impact on the surface of the outer airbag interception device 400 and ensuring the stability of the airbag interception device 400 during the airbag interception process.

[0051] Through the above structural design, the airbag buffer device 500 can intercept and buffer the airbag interceptor device 400, avoiding excessive pressure on the surface of the airbag interceptor device 400 caused by the high flow velocity of concrete directly impacting it, thus ensuring the stability of the airbag interceptor device 400 in intercepting the airbag at the predetermined position. At the same time, the initial concrete pouring rate can be increased, eliminating concerns about displacement or damage to the airbag interceptor device 400, and greatly improving the progress of project construction.

[0052] Furthermore, the airbag buffer device 500 structure can also be arranged at an angle. Specifically, the buffer airbag 510 and the buffer back plate 520 are arranged at an angle, with the bottom of the buffer airbag 510 located closer to the column structure 300 and the top of the buffer airbag 510 located further away from the column structure 300. Through the above structural design, the impact buffering effect of the buffer airbag 510 and the buffer back plate 520 on the concrete from the column structure 300 direction can be further improved. This further ensures the stability of the airbag interception device 400 while also further increasing the concrete pouring rate and improving the project construction progress.

[0053] In addition, in order to detect the concrete pressure inside the beam formwork 210, provide data support for concrete pouring personnel, avoid excessive impact on the airbag interception device 400 and related structures due to excessively fast concrete pouring speed, and ensure the stability of the airbag sealing interception of the airbag interception device 400, a pressure relief alarm pipe 512 is also installed on the surface of the buffer airbag 510; a pressure relief valve is installed inside the pressure relief alarm pipe 512.

[0054] When the air pressure inside the buffer airbag 510 is less than the set threshold, the pressure relief valve in the pressure relief alarm pipe 512 is closed, and the gas inside the buffer airbag 510 will not be blown out from the pressure relief alarm pipe 512 to trigger an alarm. When the air pressure inside the buffer airbag 510 is greater than the set threshold, the pressure relief valve in the pressure relief alarm pipe 512 is opened to release air until the air pressure inside the buffer airbag 510 is less than the set threshold. During this process, the gas released through the pressure relief alarm pipe 512 can trigger an alarm, reminding the staff that the pressure on the buffer airbag 510 is too high. This reminds the staff to reduce the concrete pouring speed, control the pouring point to be away from the buffer airbag 510 with excessive internal pressure, and to vibrate the concrete in a timely manner to reduce the impact on the related structures of the buffer airbag 510 during the concrete pouring process, and to inspect the related structures.

[0055] Through the above structural design, the gas released from the pressure relief alarm pipe 512 can be used to issue an alarm, reminding staff that the buffer airbag 510 has been subjected to excessive impact, resulting in excessive air pressure inside the buffer airbag 510. This requires on-site staff to reduce the concrete pouring speed and control the pouring point to be away from the buffer airbag 510 with excessive internal pressure. It also prevents the concrete placing hose from remaining in one position for a long time or the workers from failing to vibrate the concrete in time, thereby reducing the impact on the buffer airbag 510 and related structures during concrete pouring. This avoids continuous excessive concrete impact from damaging the buffer airbag 510 and even related structures such as the outer airbag interception device 400, thus preventing impact damage during the pouring process. This ensures the normal, stable, and efficient progress of concrete pouring and avoids safety accidents during project construction.

[0056] The alarm method for the pressure relief alarm pipe 512 here can be to install an airflow detection element on the outside of the pressure relief alarm pipe 512, and issue a corresponding alarm by detecting the change in airflow at the end of the pressure relief alarm pipe 512. The alarm can be an audible and visual alarm, etc., to attract the attention of on-site personnel.

[0057] Similarly, a whistle, thin metal wire, or other sound-generating structure can be installed at the outlet end of the pressure relief alarm pipe 512. The airflow will drive the relevant sound-generating structure to generate continuous vibration, thereby emitting a piercing alarm sound to remind the staff to pay attention to the situation of pouring too quickly. The above structural design is simple and convenient, without the need for additional electrical components to cooperate, and the alarm effect is good. The staff can keep their eyes on the side of the concrete pouring and detect the abnormality by listening to the piercing alarm sound. It is convenient, efficient, and accurate.

[0058] In addition, in order to continuously pump air into the buffer airbag 510 and ensure that the buffer airbag 510 is in a normally inflated state, so as to avoid the buffer airbag 510 failing to achieve the intended interception and buffering effect after contraction, a pumping device 530, a gas delivery pipe 540 and other related structures are also provided on the outside of the buffer airbag 510. The buffer airbag 510 is connected to the pumping device 530 through the gas delivery pipe 540, and a connecting pipe 511 is provided at the upper end of the buffer airbag 510. The connecting pipe 511 and the gas delivery pipe 540 are detachably connected.

[0059] When the airbag 510 contracts beyond the specified design requirements, the air pumping device 530 is activated. The air pumping device 530 pumps a certain amount of gas into the airbag 510 through the gas delivery pipe 540 and the connecting pipe 511, controlling the continuous expansion of the airbag 510 to prevent it from continuously contracting and failing to provide effective interception and buffering within the beam formwork 210. When the airbag 510 expands to the predetermined state, the pumping of gas into the airbag 510 is stopped to prevent the air pressure inside the airbag 510 from continuously increasing and causing excessive internal pressure that could damage the structure.

[0060] By setting up the air pump device 530, the gas pressure inside the buffer airbag 510 can be increased, thereby increasing the rate at which gas is discharged from the pressure relief alarm pipe 512 and increasing the loudness of the gas alarm. Alarm sounds of different loudness are emitted according to different pressure states.

[0061] The aforementioned air pumping device 530 can be manually started and stopped, or it can be kept continuously running. An additional pressure relief pipe is provided on the surface of the buffer airbag 510, and a pressure relief valve is also provided in the pressure relief pipe. As the pressure inside the buffer airbag 510 continues to increase, the pressure relief valve in the pressure relief pipe opens before the pressure relief valve in the pressure relief alarm pipe 512 to release the gas. It should be noted that the exhaust rate of the pressure relief pipe should be similar to the rate at which the air pumping device 530 pumps in the gas. When there is no concrete pouring or when the impact of concrete on the buffer airbag 510 is small and meets the requirements, the excess gas pumped in by the air pumping device 530 can be discharged through the pressure relief pipe to prevent the gas pressure inside the buffer airbag 510 from continuously increasing and exceeding the set threshold, which would cause the pressure relief valve in the pressure relief alarm pipe 512 to open and trigger an false alarm.

[0062] When the airbag 510 is subjected to excessive concrete impact, the pressure inside the airbag 510 suddenly increases and exceeds the set threshold of the pressure relief valve in the pressure relief alarm pipe 512. During this process, the extra gas cannot be discharged in time through the pressure relief pipe, and is instead discharged from the pressure relief alarm pipe 512 and an audible alarm is triggered to prevent the airbag 510 from being subjected to excessive pressure impact.

[0063] This article provides a first method for starting the air pumping device 530. A first pressure detection element is provided inside the buffer airbag 510. When the pressure detected by the first pressure detection element is less than a set threshold, it indicates that the concrete pressure on the buffer airbag 510 is small, and the air pressure inside the buffer airbag 510 is in a relatively stable state. There is no need to start the air pumping device 530 to pump gas into the buffer airbag 510. At this time, the buffer airbag 510 can be in the initial expansion state and achieve the predetermined interception and buffering effect at the predetermined position.

[0064] When the gas pressure inside the buffer airbag 510 continuously increases or suddenly increases and then continuously decreases, it indicates that the pressure on the buffer airbag 510 exceeds the set threshold. At this time, when the pressure detected by the first pressure detection element is greater than the set threshold, it means that the buffer airbag 510 has been subjected to concrete impact exceeding the design requirements. During this process, the pressure relief alarm pipe 512 emits an audible alarm to remind on-site personnel to take corresponding measures, such as reducing the concrete pouring rate, timely vibration of the concrete, or moving the concrete pouring position away from the corresponding buffer airbag 510 (when the concrete pouring rate is constant, timely vibration of the concrete or moving the concrete pouring position away from the corresponding buffer airbag 510 can reduce the impact pressure on a single buffer airbag 510). While the buffer airbag 510 emits an audible alarm, the gas inside it is continuously discharged. At this time, the control pump 530 starts after a delay, which can maintain the buffer airbag 510 in an inflated state to achieve buffering and interception, while avoiding excessive gas accumulation inside the buffer airbag 510 in a short period of time, which would cause a sharp increase in pressure and damage.

[0065] Through the above structural design, the starting status of the air pumping device 530 can be automatically detected and judged. At the same time, an alarm can be issued quickly based on the detection results to prevent the pressure of the poured concrete from continuously increasing on the buffer airbag 510 and causing excessive impact on the buffer airbag 510, buffer back plate 520 and other related structures. This ensures that the buffer airbag 510, buffer back plate 520 and related structures can play a normal and orderly role in interception and buffering.

[0066] This application also provides another method for activating the air pumping device 530. A second pressure detection element 430 is installed between the interception back plate 420 and the beam reinforcement cage 220. When the pressure detected by the second pressure detection element 430 exceeds a set threshold, it indicates that the airbag interception device 400, especially the interception airbag 410, is subjected to excessive concrete pressure impact. At this time, the buffer airbag 510 has already issued an alarm and is in an incompletely inflated state, reminding the staff to appropriately reduce the impact of concrete on the relevant structures. When the pressure detected by the buffer back plate 520 increases, it indicates that the airbag interception device 400 and other relevant structures are subjected to excessive impact, and the situation is very dangerous. At this time, the air pumping device 530 is activated to quickly pump gas into the buffer airbag 510. A large amount of gas is discharged from the pressure relief alarm pipe 512, issuing a second alarm with a louder sound. The staff needs to immediately stop the concrete pouring, inspect the relevant structures, and after confirming that there are no abnormalities, resume concrete pouring at a lower pouring rate to avoid safety accidents.

[0067] The aforementioned first and second pressure detection elements 430 can send different electrical signals to the pumping device 530, controlling the pumping device 530 to be in different pumping states. The first pressure detection element controls the pumping device 530 to be in a first state with a low pumping rate. At this time, the rate of gas pumped in is approximately the same as the rate of gas discharged from the pressure relief pipe. The flow rate of gas discharged from the pressure relief alarm pipe 512 is low, resulting in a low volume of airflow sound. This indicates that the concrete has a greater impact on the airbag buffer device 500 and related structures, but a weaker impact on the airbag interception device 400 and related structures. On-site personnel only need to slightly reduce the flow rate of concrete pouring to reduce the impact on the airbag buffer device 500.

[0068] The second pressure detection element controls the air pumping device 530 to be in a second state with a high air pumping rate. At this time, the rate of the pumped gas is much greater than the rate of the gas discharged from the pressure relief pipe. Due to the limited flow rate of the gas discharged from the pressure relief pipe, a large amount of gas is discharged from the pressure relief alarm pipe 512. Consequently, the sound emitted by the whistle or metal wire at the pressure relief alarm pipe 512 is very loud, indicating that the concrete is exerting a large impact on the airbag buffer device 500 and the airbag interception device 400. In order to prevent the airbag interception device 400 from shifting or being damaged, and to prevent concrete pouring failure or even safety accidents, the on-site personnel should immediately reduce the concrete pouring rate to the minimum or stop pouring after hearing the loud alarm sound. The on-site airbag interception device 400, airbag buffer device 500 and other related structures should be inspected. After confirming that they have returned to normal, the concrete can be poured in an orderly manner.

[0069] In summary, through the above structural and pouring process design, on-site personnel can directly judge the pressure status of the airbag interceptor 400 and the airbag buffer device 500 by the different sound states emitted from the pressure relief alarm pipe 512. The sound warnings of different loudnesses remind on-site personnel of the pressure status of the airbag interceptor 400 and the airbag buffer device 500, thereby judging the sustainability and safety of the construction and making corresponding adjustments. While maximizing the concrete pouring rate, it avoids excessive impact pressure on the airbag interceptor 400 during the concrete pouring process, which could lead to damage or displacement, and prevents safety accidents during the concrete pouring process.

[0070] Based on the above description, the following section further explains the specific construction process of concrete airbag interception, including the following steps:

[0071] Step 1: Arrangement of multiple airbag interception devices 400; After the beam formwork 210 and beam reinforcement cage 220 of beam structure 200 and the column formwork 310 and column reinforcement cage 320 of column structure 300 are arranged, select multiple airbag interception devices 400 according to the number of beam formwork 210 that needs to be blocked and intercepted. The width of the interception back plate 420 is smaller than the width of beam formwork 210 so that it can be inserted to the bottom position of beam formwork 210.

[0072] Specifically, the interception back plate 420 of the airbag interception device 400 is inserted through the beam reinforcement cage 220 to the bottom of the beam formwork 210, and multiple interception airbags 410 are fixed on the outside of the first arc-shaped block 421. After the multiple interception airbags 410 are in position, gas is pumped into the multiple interception airbags 410. After the multiple interception airbags 410 expand, they press against each other inside the beam formwork 210 to form a relatively closed concrete interception barrier, preventing concrete from passing through the airbag interception device 400 and entering the low-strength concrete pouring area during the pouring process, thus preventing cross-contamination.

[0073] Step 2: Arrangement of multiple airbag buffer devices 500; After the multiple airbag interception devices 400 are arranged, airbag buffer devices 500 are arranged inside the multiple airbag interception devices 400 (on the side closer to the column structure 300). The buffer airbags 510 of the airbag buffer devices 500 are controlled to expand to form a concrete buffer barrier. There is a certain interception and buffering distance between the airbag buffer devices 500 and the airbag interception devices 400. The airbag buffer devices 500 intercept and buffer the concrete with excessive flow velocity inside the airbag interception devices 400, thereby reducing the impact pressure of the concrete on the airbag interception devices 400.

[0074] The aforementioned intercepting backplate 420 is located on the side of the intercepting airbag 410 away from the column structure 300, and the buffer backplate 520 is located on the side of the buffer airbag 510 away from the column structure 300. Both the buffer backplate 520 and the intercepting backplate 420 are fixed to the beam reinforcement cage 220 to ensure the relative stability of the inner intercepting airbag 410 and the buffer airbag 510.

[0075] Step 3: Concrete pouring; After the multiple airbag interception devices 400 and airbag buffer devices 500 are all in place, the workers are positioned on the upper part of the pouring platform 100 and pour concrete into the area corresponding to the column structure 300. In the later stage of pouring, the workers use a vibrator to vibrate and compact the concrete in each position to ensure that the density of the structure meets the design requirements.

[0076] On-site personnel can directly judge the pressure status of the airbag interceptor 400 and the airbag buffer 500 by the different sound states emitted from the pressure relief alarm pipe 512. The sound warnings of different loudness will remind on-site personnel of the pressure status of the airbag interceptor 400 and the airbag buffer 500, thereby judging the sustainability and safety of the construction and making corresponding adjustments.

[0077] When the volume of the airflow sound at the pressure relief alarm pipe 512 is low, it indicates that the concrete has a large impact on the airbag buffer device 500 and related structures, but a weak impact on the airbag interception device 400 and related structures. On-site personnel only need to slightly reduce the flow rate of the concrete pouring to reduce the impact on the airbag buffer device 500.

[0078] When the whistle or wire at pressure relief alarm pipe 512 emits a very loud sound, it indicates that the concrete is exerting a significant impact on both the airbag buffer device 500 and the airbag interceptor device 400. To prevent displacement or damage to the airbag interceptor device 400, and to prevent concrete pouring failure or even safety accidents, on-site personnel should immediately reduce the concrete pouring rate to a minimum or stop pouring upon hearing a loud alarm. The airbag interceptor device 400, airbag buffer device 500, and other related structures should be inspected. Only after confirming that everything is back to normal should the orderly pouring of concrete resume. The specific details above have been described in detail above and will not be repeated here.

[0079] Step Four: Removal of the Airbag Buffer Device 500; Before the concrete has solidified after pouring, remove the airbag buffer device 500. During removal, expel the gas from the buffer airbag 510 to reduce its volume, then pull the buffer back plate 520 and the buffer airbag 510 upwards as a whole. Alternatively, the gas can be gradually expelled during the pulling process to reduce friction by decreasing pressure, making it easier to remove the airbag buffer device 500 as a whole. After removing the airbag buffer device 500, a predetermined amount of concrete needs to be added to its original position and compacted with vibration to ensure the concrete pouring quality meets requirements.

[0080] Step 5: Removal of the airbag interception device 400; After the concrete has solidified, remove the interception airbag 410, interception backplate 420 and other related structures from the outside. First, empty the gas in the interception airbag 410, and then pull out the interception backplate 420 upwards.

[0081] The present invention has the following advantages:

[0082] 1. Improved interception stability: The dual structure controls the offset of the interception airbag to ≤5mm, reducing the concrete cross-contamination rate to zero, meeting the requirements of the "Technical Specification for Concrete Structures of High-Rise Buildings".

[0083] 2. Improved construction efficiency: The early warning system can prevent accidents in advance, reduce rework time, and shorten the construction cycle of a single node.

[0084] 3. Cost reduction: The device can be disassembled and reused, reducing the cost of materials per construction and subsequent maintenance costs.

[0085] 4. Enhanced safety: The graded early warning system can detect abnormal pressure in advance, avoiding concrete pouring failure caused by airbag rupture, reducing the construction safety accident rate to zero, and ensuring the safety of personnel and structures.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concrete airbag interception construction process for different node grades, used for pouring concrete in beam structures (200) and column structures (300), using an airbag interception construction device, the airbag interception construction device including an airbag interception device (400), characterized in that: It also includes an airbag buffer device (500), which includes a buffer airbag (510) and a pressure relief alarm pipe (512) provided on the surface of the buffer airbag (510); including the following steps: S1. Insert the airbag interception device (400) into the bottom position of the beam structure (200) and control its expansion to form a concrete interception barrier; S2. The airbag buffer device (500) is arranged between the airbag interception device (400) and the column structure (300) and inserted into the bottom of the beam structure (200), and then its expansion is controlled to form a concrete buffer barrier. S3. Pour concrete into the area corresponding to the column structure (300). During the concrete pouring process, pay attention to the sound emitted by the pressure relief alarm pipe (512). When the pressure relief alarm pipe (512) emits a sound, reduce the concrete pouring rate, change the position of the pouring point, vibrate the concrete in time, or stop the concrete pouring. When the airbag interception device (400) and the airbag buffer device (500) are subjected to different impact pressures, the pressure relief alarm pipe (512) is controlled to emit sound warnings of different loudnesses; when the loudness of the airflow sound emitted from the pressure relief alarm pipe (512) is low, the concrete pouring rate is reduced, the pouring point is changed, and the concrete is vibrated in time; when the loudness of the airflow sound emitted from the pressure relief alarm pipe (512) is high, the concrete pouring is stopped. The airbag buffer device (500) is a temporary structure, and the airbag buffer device (500) will be pulled out when the concrete pouring is about to end. The airbag interception device (400) includes an interception airbag (410), and the number of buffer airbags (510) is less than the number of interception airbags (410). The buffer airbags (510) are located in the middle of the beam structure (200) to intercept and buffer the flowing concrete.

2. The construction process for intercepting concrete airbags at different node grades according to claim 1, characterized in that, After concrete pouring is stopped, the corresponding airbag interception device (400) and airbag buffer device (500) on site are immediately inspected. Concrete pouring can only proceed after the devices are confirmed to be back to normal.

3. The construction process for intercepting concrete airbags at different node grades according to claim 1, characterized in that, At least two buffer airbags (510) are provided, and the two buffer airbags (510) are arranged at intervals in the middle of the beam formwork (210).

4. The construction process for intercepting concrete airbags at different node grades according to claim 1, characterized in that, The pressure relief alarm pipe (512) is equipped with a pressure relief valve. A sound-emitting structure is installed at the outlet end of the pressure relief alarm pipe (512). When the air pressure in the buffer airbag (510) is less than the set threshold, the pressure relief valve in the pressure relief alarm pipe (512) is in a closed state.

5. The construction process for airbag interception of concrete at different node grades according to claim 1, characterized in that, The buffer airbag (510) is also provided with a pumping device (530) and a gas delivery pipe (540) on the outside. The buffer airbag (510) is connected to the pumping device (530) through the gas delivery pipe (540). The pumping device (530) is started to pump gas into the buffer airbag (510).

6. The construction process for intercepting concrete airbags at different node grades according to claim 5, characterized in that, The buffer airbag (510) is provided with a first pressure detection element. When the pressure detected by the first pressure detection element is less than a set threshold, the air pumping device (530) is in a closed state. When the pressure detected by the first pressure detection element is greater than the set threshold, the air pumping device (530) is controlled to start after a delay and pump gas into the buffer airbag (510).

7. The construction process for intercepting concrete airbags at different node grades according to claim 5, characterized in that, The airbag interception device (400) includes an interception back plate (420) and a second pressure detection element (430) is provided between the interception back plate (420) and the beam reinforcement cage (220). When the pressure detected by the second pressure detection element (430) is greater than the set threshold, the pumping device (530) is started to quickly pump gas into the buffer airbag (510).

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