Airbag interception construction process for concrete with different mark numbers at joints

Abstract

The invention provides an air bag interception construction process for concrete with different grades at joints, and belongs to the technical field of concrete pouring operation, and the air bag interception construction process 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, the air bag buffering device is arranged at the bottom of the air bag intercepting device inserted into the beam structure, and expansion of the air bag buffering device is controlled to form a concrete buffering barrier; and S3, concrete is poured in the corresponding area of the column structure, the pressure relief alarm pipeline is concerned to make a sound in the concrete pouring process, and after the pressure relief alarm pipeline makes the sound, the concrete pouring speed is reduced, the position of a pouring drop point is changed, and the concrete is vibrated in time or concrete pouring is stopped. Initial impact momentum is absorbed through the buffering device, closed separation is achieved through the intercepting device, the problem that the stability of a single structure is insufficient is solved, a sound alarm can be given in time through the pressure relief alarm pipeline, early warning is achieved in advance, and it is guaranteed that concrete pouring construction operation is conducted safely and efficiently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete pouring operation, in particular to a node different label concrete air bag interception construction process. BACKGROUND

[0002] In the 13.8.9 article of Technical Specification for Concrete Structures of Tall Building (JGJ3-2010), when the design strength grade of column and wall concrete is higher than that of beam and slab concrete, separation measures should be taken in the junction area. The separation position should be in the component with low strength grade, and the distance from the edge of the component with high strength grade should not be less than 500mm. High strength grade concrete should be poured first, and then low strength grade concrete.

[0003] In the prior art, the different strength grade concrete can be intercepted by air bag interception construction. Considering that the concrete interception pressure is large and the overall support strength of the air bag is low, a rigid support structure is arranged inside or outside the air bag in the actual operation process to ensure the accuracy of the position of the air bag related structure during the air bag interception construction process, avoid the air bag structure from being deviated or even damaged during the concrete pouring process, ensure the normal and stable performance of the concrete air bag interception construction, and ensure that the finally poured beam column meets the design requirements.

[0004] However, in the actual construction process, the single air bag interception structure still has great pressure on the high strength grade concrete, especially in the extreme case of large interception area and fast concrete pouring rate, the air bag interception structure still has small range deviation and instability, which affects the normal pouring of the concrete. In addition, the existing air bag interception structure only has a relatively single closed interception function. When the pressure on the air bag interception structure and the position thereof changes, early warning cannot be performed, and only visual observation can be performed after pouring is completed or an accident occurs during pouring, which affects the normal construction progress of the project and has safety hazards. SUMMARY

[0005] In view of the above problems, the node different label concrete air bag interception construction process is provided. The initial impact momentum is absorbed by the buffer device, the closed separation is realized by the interception device, the problem of insufficient stability of the single structure is solved, the sound alarm can be sent in time through the pressure relief alarm pipeline, early warning is realized, and the concrete pouring construction operation is safe and efficient.

[0006] To solve the above problems, the technical scheme adopted by the present application is:

[0007] The node different label concrete air bag intercepts construction technology is used for pouring concrete in a beam structure and a column structure, and uses an air bag intercepting construction equipment, which comprises an air bag intercepting device and an air bag buffering device, and the air bag buffering device comprises a buffering air bag, and the surface of the buffering air bag is provided with a pressure relief alarm pipeline; and the method comprises the following steps: S1, inserting the air bag intercepting device into the bottom position of the beam structure and controlling the expansion of the air bag intercepting device to form a relatively closed concrete intercepting barrier; S2, arranging the air bag buffering device on the side of the air bag intercepting device close to the column structure and inserting the air bag buffering device into the bottom position of the beam structure, and then controlling the expansion of the air bag buffering device to form a concrete buffering barrier; and S3, pouring concrete in the corresponding area of the column structure, and paying attention to the sound emitted by the pressure relief alarm pipeline during the pouring of the concrete, and when the pressure relief alarm pipeline emits a sound, reducing the pouring rate of the concrete, changing the position of the pouring drop point, timely vibrating the concrete or stopping the pouring of the concrete.

[0008] The buffering device and the intercepting device are used to resist the impact of concrete in stages, the buffering device absorbs the initial impact momentum, and the intercepting device realizes closed separation, so that the problem of insufficient stability of a single structure is solved; and the pressure relief alarm pipeline can timely emit a sound alarm to realize early warning, remind the on-site workers to reduce the pouring rate of the concrete, change the position of the pouring drop point, timely vibrate the concrete or stop the pouring of the concrete, and ensure that the construction operation is safe and efficient.

[0009] Preferably, the air bag intercepting device and the air bag buffering device emit sound warnings of different loudnesses when subjected to different impact pressures; when the sound emitted by the pressure relief alarm pipeline is of low loudness, the pouring rate of the concrete is reduced, the position of the pouring drop point is changed, and the concrete is timely vibrated; and when the sound emitted by the pressure relief alarm pipeline is of high loudness, the pouring of the concrete is stopped.

[0010] The pressure relief alarm pipeline can emit sound warnings of different loudnesses according to the different pressure states of the air bag, directly and quickly reminding the on-site workers of the pressure state of the air bag, so that different pouring reminders are given, and the pouring of the concrete is ensured to be fast, safe and efficient.

[0011] Preferably, after the pouring of the concrete is stopped, the corresponding air bag intercepting device and air bag buffering device are immediately inspected, and the pouring of the concrete is resumed after it is confirmed that the air bag intercepting device and the air bag buffering device return to normal.

[0012] The subsequent pouring is performed after the relevant structures are inspected to be stable, so that the relevant structures cannot meet the design requirements after the pouring is completely finished, greater losses are avoided, and safety accidents are avoided during the pouring process.

[0013] Preferably, the air bag buffering device is a temporary structure, and the air bag buffering device is pulled out when the pouring of the concrete is almost finished.

[0014] The buffer device and the intercepting device are modular designs, the number of air bags can be adjusted according to the width of the beam, and the related devices can be detached and reused to reduce the construction cost.

[0015] Preferably, the air bag intercepting device comprises intercepting air bags, the number of the buffer air bags is less than the number of the intercepting air bags, and the buffer air bags are located at the middle position of the beam structure to intercept and buffer the flowing concrete.

[0016] The buffer air bags are in an inflated state during the intercepting process, can form an intercepting and buffering structure at the middle position of the beam formwork, control the concrete flowing from the positions on both sides of the buffer air bags towards the air bag intercepting device, and achieve efficient intercepting and buffering.

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

[0018] Through the above design, the concrete passing through the buffer air bags on both sides can flow towards the inside to impact and disturb the concrete passing through at the middle position, the concrete on the outside of the buffer air bags and the concrete on the inside of the buffer air bags can disturb and collide with each other to reduce the flow rate, further weaken the impact on the surface of the air bag intercepting device on the outside, and ensure the stability of the air bag intercepting device during the air bag intercepting process.

[0019] Preferably, a pressure relief valve is arranged in the pressure relief alarm pipeline, a sound generating structure is installed at the outlet end of the pressure relief alarm pipeline, and when the air pressure in the buffer air bag is less than a set threshold value, the pressure relief valve in the pressure relief alarm pipeline is in a closed state.

[0020] The airflow drives the related sound generating structure to generate continuous vibration, and then emits a piercing sound alarm to remind the workers to pay attention to the situation of too fast pouring; through the above structural design, no additional electrical elements are needed to cooperate, the alarm effect is good, the workers can continuously focus their eyes on one side of the concrete pouring, and can perceive the abnormality by listening to the piercing alarm sound, which is convenient, efficient and accurate.

[0021] Preferably, a gas pumping device and a gas conveying pipeline are further arranged on the outside of the buffer air bag, the buffer air bag is communicated with the gas pumping device through the gas conveying pipeline, and the gas pumping device is started to pump gas into the buffer air bag.

[0022] Through the above structure, the buffer air bag is continuously pumped, the buffer air bag is ensured to be in a normal inflated state, the buffer air bag cannot be retracted to achieve the predetermined intercepting and buffering effect, the gas pressure in the buffer air bag can be increased to increase the gas discharge rate in the pressure relief alarm pipeline and improve the loudness of the gas alarm, and different loudness alarm sounds can be emitted according to different pressure states.

[0023] Preferably, a first pressure detection element is arranged in the buffer air bag, 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 pumping air into the buffer air bag.

[0024] Through the above structural design, the starting state of the air pumping device can be automatically detected and judged, and an alarm can be quickly issued according to the detection result, so that the pressure of the buffer air bag continuously increasing due to the pouring of concrete is avoided, and excessive impact on the buffer air bag, the buffer back plate and other related structures is avoided, and the buffer air bag, the buffer back plate and other related structures can normally and orderly play the role of interception and buffering.

[0025] Preferably, the air bag interception device comprises an interception back plate, and a second pressure detection element is arranged between the interception back plate and the beam reinforcement cage, when the pressure detected by the second pressure detection element is greater than a set threshold, the air pumping device is started to quickly pump air into the buffer air bag.

[0026] Through the above structure and pouring process design, the pressure state of the air bag interception device and the air bag buffer device can be directly judged by the different sound states issued at the pressure relief alarm pipeline, and the pressure state of the air bag interception device and the air bag buffer device related structure is reminded through different loudness sound warning, so that the sustainability and safety of construction can be judged, and corresponding adjustment can be made, so that the maximum of the concrete pouring rate is ensured, and the air bag interception device is prevented from being damaged or deviated due to excessive impact pressure during the concrete pouring process, and safety accidents during the concrete pouring process are prevented.

[0027] The beneficial effects of the present application are:

[0028] The double structure design of the present application resists the impact of concrete through the buffer device + interception device, the buffer device absorbs the initial impact momentum, and the interception device realizes closed separation, so that the problem of insufficient stability of single structure is solved; and the sound alarm can be issued in time through the pressure relief alarm pipeline, early warning is realized, the on-site workers are reminded to reduce the concrete pouring rate, change the pouring point position, vibrate the concrete in time or stop the concrete pouring, and the concrete pouring construction operation is safely and efficiently carried out. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The process flowchart of the present application.

[0030] Figure 2 The present application is a three-dimensional structure schematic diagram of the air bag interception construction equipment after arrangement.

[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 a beam formwork 210 and a beam steel cage 220 arranged horizontally inside the beam formwork 210, and the column structure 300 here includes a column formwork 310 and a column steel cage 320 arranged vertically inside the column formwork 310. During construction, the construction process requirement of strong column and weak beam is followed, high-strength grade concrete is first poured into the column structure 300 inside the plurality of air bag interception devices 400, to realize pouring of the building structure column, low-strength grade concrete is poured at the position of the raw column structure 300 on the side outside the plurality of air bag interception devices 400, to realize pouring of the building structure beam, the air bag interception device 400 should be inserted into the gap in the beam steel cage 220 and inflated to form a relatively closed gas closed structure, to realize efficient interception of the concrete and guarantee normal construction of the project.

[0039] The air bag interception device 400 here includes a rigid interception back plate 420 and a flexible interception air bag 410. The interception back plate 420 is in a comb tooth state. Before pouring of the concrete, the interception back plate 420 is inserted into the bottom with the opening side facing downward and is fixed between the interception back plate 420 and the beam steel cage 220. The interception back plate 420 and the beam steel cage 220 can be fixed by a steel wire, and preferably the interception back plate 420 abuts against the steel hoop at the predetermined position, to guarantee the stability of the interception back plate 420 under the subsequent impact of the concrete.

[0040] The interception air bag 410 here can be pre-exhausted and fixed with the interception back plate 420 and arranged synchronously with the insertion of the interception back plate 420, or can be separately pumped after being vertically inserted into the predetermined position and fixed after vertical arrangement of the interception back plate 420. After the interception air bag 410 is inflated, the adjacent two interception air bags 410 are pressed against each other to fill the gap therebetween, to form a relatively sealed closed structure and avoid the concrete from passing through.

[0041] A plurality of first arc-shaped blocks 421 are arranged on the side wall surface of the interception back plate 420 close to the column structure 300. The first arc-shaped blocks 421 are arranged at the same density as the interception air bags 410. The outer surface of the first arc-shaped blocks 421 is arc-shaped, and the arc-shaped surface of the outer side of the first arc-shaped blocks 421 is matched with the outer surface of the interception air bags 410, to increase the force contact area, reduce the pressure intensity of the local unit area of the surface of the interception air bags 410, guarantee stable interception of the interception air bags 410, and avoid excessive local pressure of the interception air bags 410 to cause air leakage and damage of the interception air bags 410.

[0042] In summary, the plurality of intercepting back plates 420 and the intercepting air bags 410 are arranged in different beam structures 200 outside the column structure 300 respectively, a plurality of vertical sealed intercepting structures are formed in the plurality of beam structures 200, the concrete is prevented from entering the area of pouring the low-strength grade concrete through the air bag intercepting device 400, the concrete of different strength grades is prevented from being mixed, and the construction of the beam and the column meets the design process requirements.

[0043] The difference from the prior art is that the air bag buffering device 500 is arranged inside the air bag intercepting device 400, that is, close to the column structure 300, and is arranged at intervals between the air bag intercepting device 400 and the air bag buffering device 500. The air bag buffering device 500 can buffer and intercept the concrete inside the air bag intercepting device 400, so that the excessive and rapid concrete is prevented from directly impacting the inner surface of the air bag intercepting device 400 with high strength, the relative stability of the air bag intercepting device 400 during the concrete pouring and intercepting process is ensured, and the air bag intercepting device 400 is prevented from being damaged or deviating from the position to affect the concrete intercepting.

[0044] Specifically, the air bag buffering device 500 includes a buffering back plate 520 and a buffering air bag 510, and a second arc-shaped block 521 similar to the first arc-shaped block 421 is arranged on one surface, so that the buffering air bag 510 can be more effectively and stably supported. The buffering back plate 520 is also a comb-shaped structure, and the opening is arranged downward. The structure and arrangement requirements of the buffering back plate 520 are similar to those of the intercepting back plate 420, and will not be described in detail here.

[0045] The difference between the air bag buffering device 500 and the air bag intercepting device 400 is that the purpose of the air bag buffering device 500 is to buffer and intercept the excessive concrete with a high flow rate, rather than to close and intercept. The role is to absorb the inertial impact momentum of the concrete at the front side, so as to avoid excessive impact on the air bag intercepting device 400 outside.

[0046] The air bag buffering device 500 is a temporary structure, and the buffering air bag 510, the buffering back plate 520 and other related structures need to be pulled out when the concrete pouring is almost completed, so as to avoid that the buffering air bag 510, the buffering back plate 520 and other related structures remain in the beam structure 200 to affect the normal pouring structure and strength of the building.

[0047] In addition, the number of the buffering air bags 510 is less than that of the intercepting air bags 410, and the number of the buffering air bags 510 is selected according to the width of the beam formwork 210, so as to Figure 6For example, the buffer air bag 510 is arranged in two and the two buffer air bags 510 are located at the middle position of the beam formwork 210 to intercept and buffer the flowing concrete, the buffer air bag 510 is in an inflated state during the interception and buffering, and the buffer air bag 510 can form an interception and buffering structure at the middle position of the beam formwork 210, control the concrete flowing from the positions on both sides of the buffer air bag 510 to the air bag interception device 400, and achieve efficient interception and buffering.

[0048] It should be noted that the two buffer air bags 510 are used as an example in the present application, but the above content should not be regarded as a limitation of the present application, and the number of buffer air bags 510 can be selected arbitrarily according to the width of the beam formwork 210 by those skilled in the art.

[0049] Similarly, the two buffer air bags 510 are used as an example, and the two buffer air bags 510 are preferably arranged at the middle position of the beam formwork 210 and spaced apart from each other, and gaps exist between the two buffer air bags 510 and on the outside to allow the concrete to pass through, the amount of concrete passing through the position between the two buffer air bags 510 is small, and the impact on the air bag interception device 400 is weak, and the purpose is to allow more concrete to quickly pass through the buffer air bag 510 and enter the position on the outside to improve the pouring rate of the concrete in the whole process.

[0050] Meanwhile, gaps exist on the outside of the two buffer air bags 510 for the concrete to pass through, and after the concrete passes through the position on the outside of the buffer air bag 510, since there is a region on the outside of the buffer air bag 510 for the concrete to enter, the concrete not only flows along the length direction of the beam formwork 210, but also flows in an inclined direction towards the inside, and overall, the concrete passing through the buffer air bag 510 flows in an inclined direction towards the inside of the beam formwork 210, through the above design, the concrete passing through the buffer air bag 510 on both sides can flow towards the inside to impact and disturb the concrete passing through the position in the middle, and the concrete on the outside of the buffer air bag 510 and the concrete on the inside of the buffer air bag 510 can disturb and collide with each other to reduce the flow rate, further weakening the impact on the surface of the air bag interception device 400 on the outside, and ensuring the stability of the air bag interception device 400 during the air bag interception.

[0051] Through the above structural design, the air bag buffering device 500 can intercept and buffer the air bag interception device 400, avoid the concrete with too high flow rate directly impacting the air bag interception device 400 to generate too much pressure on the surface of the air bag interception device 400, ensure the stability of the air bag interception device 400 during the air bag interception at the predetermined position, and at the same time, the initial pouring rate of the concrete can be expanded, and there is no need to worry about the displacement and damage of the air bag interception device 400, which greatly improves the progress of the project construction.

[0052] Further, the air bag buffer device 500 structure here can also be selected as an inclined arrangement, specifically, the buffer air bag 510 and the buffer back plate 520 are arranged obliquely, the bottom of the buffer air bag 510 is located closer to the column structure 300 side, and the top of the buffer air bag 510 is located farther away from the column structure 300 side. Through the above structure design, the impact buffering effect of the buffer air bag 510 and the buffer back plate 520 on the direction of the column structure 300 to the concrete can be further improved, further ensuring the stability of the air bag interception device 400 while further improving the rate of concrete pouring and further improving the progress of project construction.

[0053] In addition, in order to realize the detection of the concrete pressure in the beam formwork 210, provide data support for the concrete pouring personnel, avoid excessive impact on the air bag interception device 400 and other related structures due to too fast concrete pouring rate, and ensure the stability of the air bag sealing interception of the air bag interception device 400, a pressure relief alarm pipeline 512 is further arranged on the surface of the buffer air bag 510; a pressure relief valve is arranged in the pressure relief alarm pipeline 512.

[0054] When the air pressure in the buffer air bag 510 is less than the set threshold, the pressure relief valve in the pressure relief alarm pipeline 512 is in a closed state, and the gas in the buffer air bag 510 will not blow out from the pressure relief alarm pipeline 512 to cause an alarm; when the air pressure in the buffer air bag 510 is greater than the set threshold, the pressure relief valve in the pressure relief alarm pipeline 512 is in an open state until the air pressure in the buffer air bag 510 is less than the set threshold; during this process, the gas released through the pressure relief alarm pipeline 512 can alarm, reminding the workers that the pressure on the buffer air bag 510 is too large at this time, reminding the workers to reduce the pouring speed of the concrete, control the pouring position to be away from the buffer air bag 510 with excessive internal pressure, and timely vibrate the concrete, reduce the impact on the buffer air bag 510 and related structures during the concrete pouring process, and check the related structures.

[0055] Through the above structure design, the gas released through the pressure relief alarm pipeline 512 can alarm, reminding the workers that the buffer air bag 510 is subjected to excessive impact to cause the air pressure in the buffer air bag 510 to be too large, and the workers on site need to reduce the pouring speed of the concrete, control the pouring position to be away from the buffer air bag 510 with excessive internal pressure, avoid that the concrete distribution hose is stationary at one position for a long time or the workers do not vibrate the concrete in time, reduce the impact on the buffer air bag 510 and related structures during the concrete pouring process, avoid damage to the buffer air bag 510 and even the air bag interception device 400 and other related structures caused by continuous excessive concrete impact, avoid impact damage during pouring, ensure normal, stable and efficient concrete pouring, and avoid safety accidents during project construction.

[0056] The pressure relief alarm pipeline 512 can be provided with a gas flow detection element on the outside of the pressure relief alarm pipeline 512, and the alarm can be triggered by detecting the change of the gas flow at the end of the pressure relief alarm pipeline 512. The alarm can be an audible, visual, or electrical alarm to attract the attention of the workers on site.

[0057] A whistle or a thin metal wire can also be installed at the outlet end of the pressure relief alarm pipeline 512 to produce a continuous vibration and a loud alarm sound to remind the workers to pay attention to the rapid pouring of concrete. The above structure is simple and convenient, does not require additional electrical components to cooperate, and has a good alarm effect. The workers can continuously focus on one side of the concrete pouring, and can detect the abnormality by listening to the loud alarm sound.

[0058] In addition, in order to realize the continuous pumping of the buffer air bag 510, ensure that the buffer air bag 510 is in a normal inflated state, and avoid the buffer air bag 510 from shrinking and failing to achieve the predetermined interception and buffering effect, a pumping device 530 and a gas delivery pipeline 540 are arranged on the outside of the buffer air bag 510. The buffer air bag 510 is connected to the pumping device 530 through the gas delivery pipeline 540, and a communication pipeline 511 is arranged at the upper end of the buffer air bag 510. The communication pipeline 511 is detachably connected to the gas delivery pipeline 540.

[0059] When the buffer air bag 510 shrinks beyond the specified design requirement, the pumping device 530 is started to pump a certain amount of gas into the buffer air bag 510 through the gas delivery pipeline 540 and the communication pipeline 511, so as to control the continuous inflation of the buffer air bag 510 and avoid the continuous shrinkage of the buffer air bag 510 from failing to effectively intercept and buffer the beam formwork 210. When the buffer air bag 510 is inflated to a predetermined state, the pumping of gas into the buffer air bag 510 is stopped to avoid the continuous increase of the gas pressure in the buffer air bag 510, which may cause structural damage due to excessive internal pressure.

[0060] The pumping device 530 can also increase the gas pressure in the buffer air bag 510 to increase the rate of gas discharge in the pressure relief alarm pipeline 512 and improve the loudness of the gas alarm. Different pressure states can produce different loudness of alarm sound.

[0061] The pump device 530 can be manually started and closed, or the pump device 530 can be continuously started. An additional pressure relief pipe is arranged on the surface of the buffer air bag 510, and a pressure relief valve is arranged in the pressure relief pipe. During the continuous increase of the pressure in the buffer air bag 510, 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 pump device 530 pumps in gas. During the process of no concrete pouring or when the impact of the concrete on the buffer air bag 510 is small and meets the requirements, the excess gas pumped in by the pump device 530 can be discharged through the pressure relief pipe, so as to avoid the continuous increase of the gas pressure in the buffer air bag 510 exceeding the set threshold, causing the pressure relief valve in the pressure relief alarm pipe 512 to open and triggering an error alarm.

[0062] When the buffer air bag 510 is impacted by excessive concrete, the pressure in the buffer air bag 510 suddenly increases and exceeds the set threshold of the pressure relief valve in the pressure relief alarm pipe 512. During this process, the additional gas cannot be discharged in time through the pressure relief pipe, and is then discharged from the pressure relief alarm pipe 512 and sounds an alarm, so as to avoid the continuous impact of excessive pressure on the buffer air bag 510.

[0063] The first way to start the pump device 530 is provided herein. A first pressure detection element is arranged in the buffer air bag 510. When the pressure detected by the first pressure detection element is less than the set threshold, it indicates that the concrete pressure on the buffer air bag 510 is small, and the gas pressure in the buffer air bag 510 is in a relatively stable state. Therefore, the pump device 530 does not need to be started to pump gas into the buffer air bag 510. At this time, the buffer air bag 510 can be in an initial inflation state, and a predetermined interception and buffering effect can be achieved at a predetermined position.

[0064] When the gas pressure in the buffer air bag 510 continues to increase or suddenly increases and then continues to decrease, it indicates that the pressure on the buffer air bag 510 exceeds the set threshold value, and at this time, when the pressure detected by the first pressure detection element is greater than the set threshold value, the buffer air bag 510 is subjected to a concrete impact exceeding the design requirement. During this process, the pressure relief alarm pipeline 512 emits an audible alarm to remind the on-site staff to take appropriate measures to reduce the concrete pouring rate, to timely vibrate the concrete, or to pour the concrete away from the corresponding buffer air bag 510 (when the concrete pouring rate is constant, the option of timely vibrating the concrete or pouring the concrete away from the corresponding buffer air bag 510 is selected to reduce the impact pressure on the single buffer air bag 510); at the same time when the buffer air bag 510 emits an audible alarm, the gas inside the buffer air bag 510 is continuously discharged, and at this time, the pump gas device 530 is started in a delayed manner, which can maintain the buffer air bag 510 in an inflated state to achieve buffering and interception while avoiding the accumulation of too much gas in the buffer air bag 510 in a short period of time, which can cause the pressure to increase sharply and cause damage.

[0065] Through the above structural design, the starting state of the pump gas device 530 can be automatically detected and judged, and an alarm can be quickly emitted according to the detection result, which can avoid the continuous increase of the pressure of the poured concrete on the buffer air bag 510 and the excessive impact of the buffer air bag 510 and the buffer back plate 520 and other related structures, thereby ensuring that the buffer air bag 510 and the buffer back plate 520 and other related structures normally and orderly play the role of interception and buffering.

[0066] Another way to start the pump gas device 530 is provided in the present application, that is, a second pressure detection element 430 is arranged between the interception back plate 420 and the beam reinforcement cage 220, and when the pressure detected by the second pressure detection element 430 is greater than the set threshold value, it indicates that the concrete pressure impact on the air bag interception device 400, especially the interception air bag 410, is too large, and at this time, the buffer air bag 510 has emitted an alarm once and is in an incomplete inflation state, reminding the staff to appropriately reduce the impact of the concrete on the related structures; when the pressure detected by the buffer back plate 520 increases, it indicates that the impact on the air bag interception device 400 and other related structures is too large, and the situation is very dangerous, at this time, the pump gas device 530 is started to quickly pump gas into the buffer air bag 510, a large amount of gas is discharged from the pressure relief alarm pipeline 512 to emit a second alarm with greater loudness, and the staff needs to immediately stop the pouring of the concrete and check the related structures, and then pour the concrete at a lower pouring rate after confirming that there is no abnormality, to avoid the occurrence of safety accidents.

[0067] The first pressure detection element and the second pressure detection element 430 described above can emit different electrical signals to the air pumping device 530 to control the air pumping device 530 to be in different air pumping states. The first pressure detection element controls the air pumping device 530 to be in a first state with a lower air pumping rate, at which the rate of pumped air is approximately the same as the rate of air discharged through the pressure relief pipeline, the flow rate of air discharged through the pressure relief alarm pipeline 512 is low, and the sound emitted by the whistle or wire is low in loudness, indicating that the concrete has a greater impact on the air bag buffer device 500 and related structures, but the impact on the air bag interception device 400 and related structures is weak, and the site personnel only need to slightly reduce the flow rate of concrete pouring to reduce the impact on the air bag buffer device 500.

[0068] The second pressure detection element controls the air pumping device 530 to be in a second state with a larger air pumping rate, at which the rate of pumped air is much greater than the rate of air discharged through the pressure relief pipeline, and a large amount of air is discharged from the pressure relief alarm pipeline 512 due to the limited flow rate of air discharged through the pressure relief pipeline, and the sound emitted by the whistle or wire at the pressure relief alarm pipeline 512 is very loud, indicating that the concrete has a greater impact on the air bag buffer device 500 and the air bag interception device 400. In order to avoid displacement or damage of the air bag interception device 400 and prevent concrete pouring failure or even safety accidents, the site personnel should immediately reduce the concrete pouring rate to the minimum or stop pouring after hearing the loud alarm sound, and detect the related structures of the air bag interception device 400 and the air bag buffer device 500, and then proceed with the orderly pouring of concrete after confirming the normality.

[0069] In summary, through the above structure and pouring process design, the site personnel can directly judge the pressure state of the air bag interception device 400 and the air bag buffer device 500 by the different sound states emitted by the pressure relief alarm pipeline 512, and through the different loudness of the sound alarm, remind the site personnel of the pressure state of the air bag interception device 400 and the air bag buffer device 500 related structure, and then judge the sustainability and safety of the construction, and make corresponding adjustment, while ensuring the maximum rate of concrete pouring, to avoid excessive impact pressure on the air bag interception device 400 during concrete pouring, which may cause damage or displacement, and prevent safety accidents during concrete pouring.

[0070] In combination with the above description, the specific concrete air bag interception construction process is further described below, which specifically includes the following steps:

[0071] Step one: arrangement of multiple air bag intercepting devices 400; after the beam formwork 210 and the beam reinforcement cage 220 of the beam structure 200 and the column formwork 310 and the column reinforcement cage 320 of the column structure 300 are arranged, multiple air bag intercepting devices 400 are selected according to the number of the beam formwork 210 that needs to be blocked, the width of the intercepting back plate 420 is less than the width of the beam formwork 210, so as to be able to be inserted into the bottom position of the beam formwork 210.

[0072] Specifically, the intercepting back plate 420 of the air bag intercepting device 400 is inserted through the beam reinforcement cage 220 to the position of the bottom of the beam formwork 210, and multiple intercepting air bags 410 are fixed at the outer side position of the first arc-shaped block 421, after the multiple intercepting air bags 410 are positioned, gas is pumped into the multiple intercepting air bags 410, and the multiple intercepting air bags 410 are inflated and abut against each other in the beam formwork 210, forming a relatively closed concrete intercepting barrier, so as to avoid that the concrete enters the low-strength concrete pouring area during pouring and causes label mixing.

[0073] Step two: arrangement of multiple air bag buffering devices 500; after the multiple air bag intercepting devices 400 are arranged, the air bag buffering device 500 is arranged inside the multiple air bag intercepting devices 400 (close to the column structure 300 side), the buffering air bag 510 of the air bag buffering device 500 is inflated to form a concrete buffering barrier, and the air bag buffering device 500 and the air bag intercepting device 400 have a certain intercepting and buffering distance, the air bag buffering device 500 is arranged inside the air bag intercepting device 400 to intercept and buffer the concrete with too high flow rate, so as to reduce the impact pressure of the concrete on the air bag intercepting device 400.

[0074] The above-mentioned intercepting back plate 420 is located at the position of the intercepting air bag 410 away from the column structure 300, the buffering back plate 520 is located at the position of the buffering air bag 510 away from the column structure 300, and the buffering back plate 520 and the intercepting back plate 420 are fixed with the beam reinforcement cage 220, so as to ensure the relative stability of the inside intercepting air bag 410 and the buffering air bag 510.

[0075] Step three: concrete pouring; after the multiple air bag intercepting devices 400 and the air bag buffering device 500 are arranged, the staff is located at the upper end of the pouring platform 100, and the concrete is poured in the area corresponding to the column structure 300, and in the later pouring stage, the staff uses a vibrating rod to vibrate and fill the concrete at each position, so as to ensure that the density of the structure meets the design requirements.

[0076] The field staff can directly judge the pressure state of the air bag interception device 400 and the air bag buffer device 500 through different sound states emitted at the pressure relief alarm pipeline 512, and remind the field staff of the pressure state of the related structure of the air bag interception device 400 and the air bag buffer device 500 through different loudness of sound warning, so as to judge the sustainability and safety of construction and make corresponding adjustment.

[0077] When the air flow sound loudness at the pressure relief alarm pipeline 512 is low, it indicates that the concrete has a greater impact on the related structure of the air bag buffer device 500, but the impact on the related structure of the air bag interception device 400 is weak, and the field staff only needs to slightly reduce the flow rate of concrete pouring to reduce the impact on the air bag buffer device 500.

[0078] When the sound loudness of the whistle or metal wire emitted at the pressure relief alarm pipeline 512 is very large, it indicates that the concrete has a greater impact on the air bag buffer device 500 and the air bag interception device 400. In order to avoid displacement or damage of the air bag interception device 400 and prevent concrete pouring failure or even safety accidents, the field staff should immediately reduce the concrete pouring rate to the lowest or stop pouring after hearing the alarm sound with large loudness, and detect the related structure of the air bag interception device 400 and the air bag buffer device 500 on site, and then orderly pour the concrete after confirming the normality. The above specific content has been described in detail in the foregoing, and will not be repeated here.

[0079] Step four: removal of the air bag buffer device 500; before the concrete is completely poured and solidified, the air bag buffer device 500 is removed, the gas in the buffer air bag 510 is discharged to reduce the volume, and then the buffer back plate 520 and the buffer air bag 510 are pulled out as a whole. The gas can also be gradually discharged during the pulling-out process, the pressure is reduced to reduce friction, and the air bag buffer device 500 is easily taken out as a whole. After the air bag buffer device 500 is taken out, a predetermined amount of concrete is added at the original position and vibrated to fill, so as to avoid that the concrete pouring quality does not meet the requirements.

[0080] Step five: removal of the air bag interception device 400; after the concrete is solidified, the related structure such as the interception air bag 410 and the interception back plate 420 is removed from the outside, the gas in the interception air bag 410 is discharged, and then the interception back plate 420 is pulled out upward.

[0081] The present application has the following advantages:

[0082] 1. Improved interception stability: The double structure controls the offset of the interception air bag to be ≤5mm, and the concrete stringing rate is reduced to zero, meeting the requirements of the Technical Specification for High-rise Building Concrete Structures.

[0083] 2. Construction efficiency is improved: the early warning system can avoid 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 for a single construction; and the cost of later maintenance is reduced.

[0085] 4. Safety is improved: graded early warning can detect pressure abnormalities in advance, avoid concrete pouring failure caused by air bag damage, reduce the rate of construction safety accidents to zero, and ensure personnel and structure safety.

[0086] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A construction process for concrete airbag interception at 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.

2. The construction process for intercepting concrete airbags at different node grades according to claim 1, characterized in that, 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.

3. 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.

4. The construction process for intercepting concrete airbags at different node grades according to claim 1, characterized in that, The airbag buffer device (500) is a temporary structure, and it is pulled out when the concrete pouring is about to end.

5. The construction process for airbag interception of concrete at different node grades according to claim 1, characterized in that, 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.

6. The construction process for intercepting concrete airbags at different node grades according to claim 5, 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).

7. 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.

8. The construction process for intercepting concrete airbags 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).

9. The construction process for intercepting concrete airbags at different node grades according to claim 8, 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).

10. The construction process for intercepting concrete airbags at different node grades according to claim 8, 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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