A method for connecting the bottom formwork reinforcement beam of a concrete horizontal member and a clamp-type connection device

Abstract

This invention discloses a method for connecting reinforcing beams of concrete horizontal structural members' bottom formwork and a clamp-type connection device. The device includes a clamp, composed of inner and outer half-clamp plates, bolts, and rubber pads, used to tightly connect to the uprights of a disc-lock scaffold formwork support system; a beam connection assembly, including a horizontal connecting plate, stiffening plate, and silicone pads, used to connect the reinforcing beams supported on the bottom formwork of the concrete horizontal structural member; and a load monitoring assembly, including a thin-film pressure sensor and a pressure monitoring box. The thin-film pressure sensor monitors the pressure value of the load on the beam connection assembly, and the pressure monitoring box compares the detected pressure value with a set warning value to determine whether the stress state of the clamp-type connection device for the reinforcing beams of the concrete horizontal structural member's bottom formwork is safe. This invention enables the connection of reinforcing beams at any position on the uprights of the disc-lock scaffold and allows for safe monitoring of the loads generated during the concrete pouring process of the concrete horizontal structural member.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to a method for connecting a crossbeam for reinforcing the bottom formwork of a concrete horizontal component and a clamp-type connection device. Background Technology

[0002] Disc-lock scaffolding employs a standardized disc spacing and self-locking connection design, resulting in a stable and reliable structure. It can be erected into formwork supports of varying spans, cross-sections, shapes, and functions to meet diverse construction needs. Disc-lock scaffolding offers significant advantages and a wide range of applications in high-rise building construction, bridge construction, and other fields. In the construction of bottom formwork support for concrete beams, reinforcement of the bottom formwork is often necessary to improve its load-bearing capacity and stability, ensuring that the beam does not deform or break during concrete pouring. In disc-lock scaffolding support systems, installing reinforcing beams is the most common method for reinforcing the bottom formwork. Adding beams across the bottom of the formwork in a transverse direction increases its strength and stability. Due to factors such as floor height, top slab thickness, formwork thickness, and the thickness of the bottom padding when the ground is uneven, the position of the reinforcing beam often cannot fall exactly at the disc of the upright of the disc-lock scaffold. This requires solving the connection problem between the beam and the upright and the problem of adjusting the position of the beam vertically. At the same time, when using adjustable connectors, it is also necessary to ensure their clamping force and prevent the connectors from sliding downward due to excessive beam load, so as to ensure the stability of the bottom formwork and the quality of concrete beam pouring. Summary of the Invention

[0003] The purpose of this invention is to provide a method for connecting the reinforcing beam of the bottom formwork of a concrete horizontal member and a clamp-type connecting device, so as to solve the problem that the reinforcing beam cannot be connected to the upright when it is set at the bottom of the formwork and does not fall on the disc of the upright of the disc-lock scaffold formwork support system, and to solve the problem of how to safely monitor the load applied to the reinforcing beam during the pouring of concrete in the concrete horizontal member.

[0004] To solve the above-mentioned technical problems, the present invention provides a clamp-type connection device for reinforcing the bottom formwork of a concrete horizontal member beam, comprising:

[0005] The clamp is used to hold the uprights of the disc-lock scaffold formwork support system. It consists of inner and outer half clamp plates and multiple bolts that are distributed in rows and columns through the inner and outer half clamp plates. Both the inner and outer half clamp plates include a semi-circular clamp plate and flat plates on both sides. The concave arc surface of the semi-circular clamp plate is provided with rubber pads.

[0006] A beam connection assembly for connecting a reinforcing beam supported on the bottom formwork of a concrete horizontal member, comprising a horizontal connecting plate vertically disposed on a semi-circular hoop plate of an inner half-hoop plate, and a stiffening plate vertically connected between the horizontal connecting plate and the semi-circular hoop plate of the inner half-hoop plate, wherein the horizontal connecting plate is at least partially covered with a silicone pad.

[0007] The load monitoring component includes a piezoresistive flexible thin-film pressure sensor disposed between the silicone pad and the horizontal connecting plate and a pressure monitoring box connected thereto. The piezoresistive flexible thin-film pressure sensor is used to monitor the pressure value of the load applied to the beam connecting component. The pressure monitoring box is used to receive the pressure value of the piezoresistive flexible thin-film pressure sensor and compare it with a set warning value to determine whether the stress state of the clamp-type connection device of the bottom formwork reinforcement beam of the concrete horizontal component is safe.

[0008] Furthermore, the clamp-type connection device for reinforcing the bottom formwork of the concrete horizontal component provided by the present invention includes a pressure monitoring box comprising a box body and a microprocessor inside, and connected to the microprocessor are a display, a main switch, a power interface, a status indicator light, a sensor interface, a calibration knob, a warning value setting button, and a buzzer.

[0009] Furthermore, in the concrete horizontal member bottom formwork reinforcement beam reinforcement crossbeam provided by the present invention, the pressure monitoring box is set on the flat plate of the outer half clamp plate or on the disc-lock scaffold formwork support system.

[0010] Furthermore, the clamp-type connection device for reinforcing the bottom formwork of a concrete horizontal member provided by the present invention also includes:

[0011] The cloud-based data management platform communicates with the pressure monitoring box of the load monitoring component to remotely analyze the stress state of the clamp-type connection device of the bottom formwork reinforcement beam of the concrete horizontal component, and remotely monitors whether the stress state of the clamp-type connection device of the bottom formwork reinforcement beam of the concrete horizontal component is safe.

[0012] To address the aforementioned technical problems, the present invention also provides a method for connecting a crossbeam reinforcing the bottom formwork of a concrete horizontal member, comprising:

[0013] Two clamp-type connection devices for reinforcing the bottom formwork of the concrete horizontal member as described above are used. The two clamp-type connection devices are tightly connected to the two uprights of the concrete horizontal member disc-lock scaffold formwork support system at the same horizontal height. The beam connection components of the two clamp-type connection devices are arranged opposite each other with the inward facing direction. The two ends of the reinforcing beam are respectively pressed onto the silicone pads of the beam connection components of the two clamp-type connection devices, so that the load applied to the reinforcing beam is transmitted to the piezoresistive flexible film pressure sensor through the silicone pads.

[0014] The pressure values ​​of the loads borne by the two ends of the reinforced crossbeam are monitored by each piezoresistive flexible thin film pressure sensor and fed back to each pressure monitoring box. Each pressure monitoring box compares the received pressure value with the set warning value to determine whether the stress state of the clamp-type connection device connected to the upright of the disc-lock scaffold formwork support system is safe, so as to carry out safety monitoring of the concrete horizontal components during the concrete pouring process.

[0015] Furthermore, the connection method for reinforcing the bottom formwork of the concrete horizontal member provided by the present invention sets the warning values ​​as a normal warning value, a first-level warning value, and a second-level warning value. The normal warning value is that the pressure borne by the connection end of the reinforcing beam is less than 80% of the maximum static friction force of the clamp; the first-level warning value is that the pressure borne by the connection end of the reinforcing beam is within the range of 80% to 100% of the maximum static friction force of the clamp; and the second-level warning value is that the pressure borne by the connection end of the reinforcing beam is greater than 100% of the maximum static friction force of the clamp.

[0016] When the pressure values ​​of both pressure monitoring boxes are less than the normal warning value, the stress state of the clamp-type connection device connected to the upright of the disc-lock scaffold formwork support system is judged to be absolutely safe.

[0017] When the pressure values ​​of both pressure monitoring boxes are greater than the normal warning value and less than the first-level warning value, the stress state of the clamp-type connection device connected to the upright of the disc-lock scaffold formwork support system is judged to be critically safe.

[0018] When the pressure value of one pressure monitoring box exceeds the level 2 warning value, the stress state of the clamp-type connection device connected to the upright of the disc-lock scaffold formwork support system is determined to be unsafe.

[0019] Furthermore, in the method for connecting the bottom formwork reinforcement beam of the concrete horizontal member provided by the present invention, the maximum static friction force of the clamp is calculated according to formula (1);

[0020] F f =μF (1);

[0021] Among them, F f denoted as , where is the maximum static friction force of the clamp, F is the bolt preload of the clamp, and μ is the coefficient of friction between the rubber pad and the upright.

[0022] Furthermore, in the method for connecting the bottom formwork reinforcement beam of the concrete horizontal member provided by the present invention, the reinforcement beam is a square steel pipe, the square steel pipe is sleeved on the silicone pad of the beam connecting assembly, and the inner upper chord surface of the square steel pipe is pressed against the silicone pad of the beam connecting assembly.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] The present invention provides a clamp-type connection device and method for reinforcing the bottom formwork of a concrete horizontal member. The clamp-type connection device consists of a clamp, a beam connection component, and a load monitoring component. The clamp can be used to tightly connect the clamp-type connection device to any position of the upright of the disc-lock scaffold formwork support system, and the reinforcing beam is connected to the beam connection component to support the bottom formwork of the concrete horizontal member. This improves the load-bearing capacity and stability of the disc-lock scaffold formwork support system, ensuring that the concrete horizontal member will not deform or be damaged during the concrete pouring process. This solves the problem that the reinforcing beam cannot be connected to the upright of the disc-lock scaffold when the position of the reinforcing beam cannot fall at the disc of the upright.

[0025] The present invention provides a clamp-type connection device and method for reinforcing the bottom formwork of a concrete horizontal member. By using a load monitoring component to monitor the safety of the stress state of the clamp-type connection device connected to the uprights of the disc-lock scaffold formwork support system, it avoids the risk of the connection node between the reinforcing beam and the clamp-type connection device being overloaded, causing it to slide downwards relative to the uprights. This solves the problem of safely monitoring the load applied to the reinforcing beam during concrete pouring, ensuring the stability of the reinforcing beam's support for the bottom formwork of the concrete horizontal member, and guaranteeing the quality and safety of the concrete horizontal member pouring construction. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of a reinforced beam connected to the uprights of a disc-lock scaffold by a clamp-type connection device that reinforces the beam through the bottom formwork of a concrete horizontal component.

[0027] Figure 2 This is a schematic diagram of the connection between the reinforcing beam and the bottom formwork of the concrete horizontal member.

[0028] Figure 3 This is a three-dimensional structural diagram of a clamp-type connection device for reinforcing the bottom formwork of a horizontal concrete member from one perspective.

[0029] Figure 4 This is a three-dimensional structural diagram of the clamp-type connection device for reinforcing the bottom formwork of a horizontal concrete member from another perspective.

[0030] Figures 5 to 6 This is a three-dimensional structural diagram of the pressure monitoring box;

[0031] Figure 7 This is a schematic diagram of the main structure of the pressure monitoring box;

[0032] Figure 8 This is a schematic diagram of the three-dimensional structure of a piezoresistive flexible thin-film pressure sensor;

[0033] Figure 9 This is the circuit connection diagram of the pressure monitoring box and its circuit connection diagram with the cloud data management platform;

[0034] As shown in the figure:

[0035] 100. Clamp-type connection device for reinforcing the bottom formwork of horizontal concrete members;

[0036] 110. Clamp; 111. Outer clamp plate; 112. Inner clamp plate; 113. Bolt; 114. Rubber pad;

[0037] 120. Crossbeam connecting assembly; 121. Horizontal connecting plate; 122. Stiffening plate; 123. Silicone pad;

[0038] 130. Load monitoring component; 131. Piezoresistive flexible thin-film pressure sensor; 132. Pressure monitoring box; 1321. Microprocessor; 1322. Display; 1323. Main switch; 1324. Power interface; 1235. Status indicator light; 1326. Sensor interface; 1327. Calibration knob; 1328. Warning value setting button; 1329. Buzzer;

[0039] 140. Cloud-based data management platform;

[0040] 200. Pole; 201. Disc;

[0041] 300. Reinforce the crossbeam. Detailed Implementation

[0042] The present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0043] Example 1

[0044] Please refer to Figures 1 to 8 Embodiment 1 of the present invention provides a clamp-type connection device 100 for reinforcing the bottom formwork of a concrete horizontal member beam, including a clamp 110, a beam connection assembly 120, and a load monitoring assembly 130, wherein:

[0045] The clamp 110 is used to tightly clamp the upright 200 of the disc-lock scaffolding formwork support system. It consists of inner and outer half-clamp plates 111 and 112 and multiple bolts 113 arranged in rows and columns through the inner and outer half-clamp plates 111 and 112. Both the inner and outer half-clamp plates 111 and 112 include a semi-circular clamp plate and flat plates on both sides. The concave arc surface of each semi-circular clamp plate is provided with a rubber pad 114. The rubber pad 114 can increase the friction between the clamp 110 and the upright 200, that is, increase the clamping force. Figures 3 to 4 The example of bolt 113 shows four bolts arranged in two rows and two columns, but it is not limited to four bolts. Four bolts are the minimum number. Bolt 113 can be arranged in two columns and six rows, two columns and eight rows, or other arrangements in two columns and multiple rows. The semi-circular hoop plate is used to contact the upright 200, and the flat plate is used to pass through the bolt 113 to tightly connect the inner and outer semi-hoop plates 111 and 112 to the upright 200 by means of bolt 113.

[0046] The beam connecting assembly 120 connects the reinforcing beam 300 supported on the bottom formwork of the concrete horizontal member. It includes a horizontal connecting plate 121 vertically disposed on the semi-circular hoop plate of the inner half-clamp 110 plate, and a stiffening plate 122 vertically connected between the horizontal connecting plate 121 and the semi-circular hoop plate of the inner half-clamp 110 plate. The horizontal connecting plate 121 is at least partially covered with a silicone pad 123. The horizontal connecting plate 121 bears the load applied to the reinforcing beam 300 and reflects it on the clamp 110. The stiffening plate 122 improves the structural strength of the horizontal connecting plate 121 and enhances the load-bearing capacity of the reinforcing beam 300.

[0047] The load monitoring component 130 includes a piezoresistive flexible thin-film pressure sensor 131 disposed between the silicone pad 123 and the horizontal connecting plate 121, and a pressure monitoring box 132 connected thereto. The piezoresistive flexible thin-film pressure sensor 131 is used to monitor the pressure value applied to the load of the beam connecting component 120. The pressure monitoring box 132 is used to receive the pressure value of the piezoresistive flexible thin-film pressure sensor 131 and compare it with a set warning value to determine whether the stress state of the clamp-type connection device 100 of the concrete horizontal component bottom formwork reinforcement beam is safe. The piezoresistive flexible thin-film pressure sensor 131 is disposed between the silicone pad 123 and the horizontal connecting plate 121, ensuring that the sensing area is flat and in close contact with the surface of the object being tested. Its extension and interface section with the detection box are protected by conduit to ensure the testing effect. The specific method for determining whether the stress state is safe can be as follows: when the pressure value of the pressure monitoring box 132 is less than the warning value, the stress state of the clamp-type connecting device 100 is determined to be absolutely safe; when the pressure value of the pressure monitoring box 132 is equal to the warning value, the stress state of the clamp-type connecting device 100 is determined to be critically safe; when the pressure value of the pressure monitoring box 132 is greater than the warning value, the stress state of the clamp-type connecting device 100 is determined to be unsafe.

[0048] Please refer to this carefully. Figures 5 to 7 and Figure 9The clamp-type connection device 100 for reinforcing the bottom formwork of a concrete horizontal component provided in Embodiment 1 of the present invention includes a pressure monitoring box 132 comprising a box body 1320 and a microprocessor 1321 therein. Connected to the microprocessor 1321 are a display 1322, a main switch 1323, a power interface 1324, a status indicator light 1325, a sensor interface 1326, a calibration knob 1327, a warning value setting button 1328, and a buzzer 1329. The calibration knob 1327 and buzzer 1329 are optional; the microprocessor 1321 can be a single-chip microcomputer, used to locally determine the stress state of the clamp-type connecting device 100; the display 1322 is mounted on the housing 1320 to display the pressure value detected by the piezoresistive flexible thin-film pressure sensor 131; the main switch 1323 is used to turn the pressure monitoring box 132 on and off; the power interface 1324 is connected to a power socket via a power cord; and the status indicator light 1325 is used to indicate the stress state of the clamp-type connecting device 100. The system provides three indicators: a green indicator, a yellow indicator, and a red indicator. The sensor interface 1326 connects to a piezoresistive flexible thin-film pressure sensor 131. The calibration knob 1327 is used to zero the pressure value. Four warning value setting buttons 1328 can be used to set different levels of warning values ​​for safe monitoring of the stress state of the clamp-type connection device 100. A buzzer 1329 sounds an alarm when the stress state of the clamp-type connection device 100 is unsafe, reminding workers to resume operations. The pressure monitoring box 132 can be bolted to the flat plate of the outer clamp plate 111 via the box body 1320. In this case, the length of the flat plate of the outer clamp plate 111 connected to the pressure monitoring box 132 is greater than the length of the flat plate on the side where the inner clamp plate 112 is located. Alternatively, the pressure monitoring box 132 can also be installed on the disc-lock scaffolding formwork support system.

[0049] Please refer to Figure 9 To enable remote management of the construction of horizontal concrete components, the clamp-type connection device 100 for reinforcing the bottom formwork beam of the horizontal concrete component provided in Embodiment 1 of the present invention may further include:

[0050] The cloud data management platform 140 is communicatively connected to the pressure monitoring box 132 of the load monitoring component 130, and remotely analyzes the stress state of the clamp-type connection device 100 of the bottom formwork reinforcement beam of the concrete horizontal component, and remotely monitors whether the stress state of the clamp-type connection device 100 of the bottom formwork reinforcement beam of the concrete horizontal component is safe.

[0051] Example 2

[0052] Embodiment 2 of the present invention also provides a method for connecting the bottom formwork reinforcement beam 300 of a concrete horizontal member, which may include the following steps:

[0053] Step S401: Using two clamp-type connecting devices 100 of the concrete horizontal component bottom formwork reinforcement beam described in Embodiment 1 above, the two clamp-type connecting devices 100 are tightly connected to the two uprights 200 of the concrete horizontal component disc-lock scaffold formwork support system at the same horizontal height. The beam connecting components 120 of the two clamp-type connecting devices 100 are arranged opposite each other with their inward faces. The two ends of the reinforcement beam 300 are respectively pressed onto the silicone pads 123 of the beam connecting components 120 of the two clamp-type connecting devices 100, so as to transmit the load applied to the reinforcement beam 300 to the piezoresistive flexible thin film pressure sensor 131 through the silicone pads 123.

[0054] In step S402, the pressure values ​​of the loads borne at both ends of the reinforced crossbeam 300 are monitored by each piezoresistive flexible thin film pressure sensor 131 and fed back to each pressure monitoring box 132. Each pressure monitoring box 132 compares the received pressure values ​​with the set warning values ​​to determine whether the stress state of the clamp-type connection device 100 connected to the upright 200 of the disc-lock scaffold formwork support system is safe, so as to carry out safety monitoring of the concrete horizontal components during the concrete pouring process.

[0055] In the connection node between the reinforcing beam 300, the clamp-type connecting device 100, and the upright 200, the pressure values ​​at both ends of the reinforcing beam 300 are reflected on the clamp-type connecting device 100 connected to the upright 200. Therefore, monitoring the pressure value of the clamp-type connecting device 100 to determine whether its stress state is safe is equivalent to monitoring the stress state of this connection node. By using the pressure value reflected on the clamp-type connecting device 100 by the load borne by the reinforcing beam 300, we can determine whether the connection between the clamp-type connecting device 100 and the upright 200 is reliable and whether there is a risk of slippage. Monitoring the stress state of this connection node is used to determine whether the concrete horizontal member will deform or be damaged during the concrete pouring process, which is to say, to conduct safety monitoring of the concrete horizontal member during the concrete pouring process.

[0056] Please refer to Figure 1 To enable 100-level safety monitoring of the clamp-type connection device and to digitally manage the safety of concrete horizontal components, the connection method for the bottom formwork reinforcement beam 300 of the concrete horizontal component provided in Embodiment 2 of this invention sets warning values ​​as a normal warning value, a first-level warning value, and a second-level warning value. The normal warning value is that the pressure on the connection end of the reinforcement beam 300 is less than 80% of the maximum static friction force of the clamp 110; the first-level warning value is that the pressure on the connection end of the reinforcement beam 300 is within the range of 80% to 100% of the maximum static friction force of the clamp 110; and the second-level warning value is that the pressure on the connection end of the reinforcement beam 300 is greater than 100% of the maximum static friction force of the clamp 110.

[0057] The four warning value setting buttons 1328 are numbered from left to right as key 1, key 2, key 3, and key 4. The operation for setting the warning value is as follows:

[0058] Press and hold the 1 key for 2 seconds to display "F000";

[0059] Press key 2 to move the blinking cursor to the last position;

[0060] Press key 3 to change the value to 1, and "F001" will be displayed.

[0061] Press key 1 to display "-FH-", which is the upper limit of the pressure value, i.e., the maximum static friction force of the clamp.

[0062] Press button 2 to enter the pressure setting mode;

[0063] Press key 2 to shift, and press keys 3 and 4 to add or subtract numbers, in kN;

[0064] After setting, press key 1. The display will show "-FA", which is 80% of the maximum static friction force of the clamp.

[0065] Press button 2 to enter the pressure setting mode;

[0066] Press key 2 to shift, and press keys 3 and 4 to add or subtract numbers, in kN.

[0067] After setting, press key 1. The display will show "-FL", which indicates the minimum pressure value to be set.

[0068] Press button 2 to enter the pressure setting mode;

[0069] Press key 2 to shift, and press keys 3 and 4 to add or subtract numbers, in kN;

[0070] Turn the calibration knob to return the pressure value to zero.

[0071] Of course, the setting of the warning value is not limited to the external input method of the warning value setting button 1328, but can also be set by the program in the microprocessor 1321.

[0072] When the pressure values ​​of both pressure monitoring boxes 132 are less than the normal warning value, the stress state of the clamp-type connection device 100 connected to the upright 200 of the disc-lock scaffolding formwork support system is determined to be absolutely safe; at this time, the green indicator light of the status indicator 1325 will light up.

[0073] When the pressure values ​​of both pressure monitoring boxes 132 are greater than the normal warning value and less than the first-level warning value, the stress state of the clamp-type connection device 100 connected to the upright 200 of the disc-lock scaffolding formwork support system is judged to be critically safe; at this time, the yellow indicator light 1325 of the status indicator light is on.

[0074] When the pressure value of a pressure monitoring box 132 exceeds the level 2 warning value, it is determined that the stress state of the clamp-type connection device 100 connected to the upright 200 of the disc-lock scaffolding formwork support system is unsafe. At this time, the red indicator light of the status indicator 1325 will light up, and the buzzer 1329 will sound an alarm.

[0075] The pressure data corresponding to the first and second level warning values ​​can be uploaded to the cloud data management platform 140, which facilitates intuitive analysis of the stress on the main beam (i.e., the reinforcing beam) of the disc-lock support frame formwork support system in the bottom formwork support project of concrete horizontal components, and provides data support for the management of critical and major projects.

[0076] The connection method for the bottom formwork reinforcement beam 300 of the concrete horizontal member provided in Embodiment 2 of the present invention, since the clamp 110 is fastened by the bolt 113, the maximum static friction force F of the clamp is... f The preload force F of bolt 113 can be estimated. The preload force can be controlled by a torque wrench or a constant torque wrench, and the cost is low. Therefore, the maximum static friction force of clamp 110 can be calculated according to formula (1).

[0077] F f =μF (1);

[0078] Among them, F f denoted as , where is the maximum static friction force of clamp 110, F is the preload of bolt 113 of clamp 110, and μ is the coefficient of friction between rubber pad 114 and upright 200.

[0079] Please refer to Figures 1 to 2To facilitate the connection between the reinforcing beam 300 and the clamp-type connecting device 100, the method for connecting the reinforcing beam 300 of the bottom formwork of the concrete horizontal component provided in Embodiment 2 of the present invention includes, but is not limited to, a square steel tube. When the reinforcing beam 300 is a square steel tube, the square steel tube is sleeved on the silicone pad 123 of the beam connecting assembly 120, and the inner upper chord surface of the square steel tube is pressed against the silicone pad 123 of the beam connecting assembly 120. At this time, the square steel tube is sleeved and pressed against the silicone pad 123 of the beam connecting assembly 120 of the clamp-type connecting device 100, and the load on it is transferred to the piezoresistive flexible thin film pressure sensor 131 between the silicone pad 123 and the horizontal connecting plate 121. Moreover, the square steel tube is limited by the two clamp-type connecting devices 100 to ensure the reliability of the connection between the reinforcing beam 300 and the clamp-type connecting device 100. The reinforcing beam 300 can also be made of H-beams, I-beams, channel steel, or other structural steel. When this structural steel is used as the reinforcing beam 300, it needs to be fixed to the silicone pad 123 of the beam connecting assembly 120 of the clamp-type connecting device 100 using bolts or clamps, without damaging the piezoresistive flexible thin-film pressure sensor 131 below it. To ensure a reliable connection between the square steel tube and the beam connecting assembly 120, the two ends of the square steel tube can also be fastened to the horizontal connecting member 123 with screws or bolts, avoiding the silicone pad 123 and the piezoresistive flexible thin-film pressure sensor 131 below it.

[0080] The clamp-type connection device 100 and method for reinforcing the bottom formwork of concrete horizontal members provided in the above embodiments of the present invention consist of a clamp 110, a beam connection component 120, and a load monitoring component 130. The clamp 110 can tightly connect the clamp-type connection device 100 to any position of the upright 200 of the disc-lock scaffold formwork support system, enabling adjustable position installation of the clamp-type connection device 100 and the upright 200. This method is suitable for reinforcing the bottom formwork of concrete horizontal members of various sizes. The connection between the reinforcing beam and the disc-lock upright connects the reinforcing beam 300 to the beam connecting assembly 120, thereby supporting the reinforcing beam 300 on the bottom formwork of the concrete horizontal member. This improves the load-bearing capacity and stability of the disc-lock scaffold formwork support system, ensuring that the concrete horizontal member will not deform or be damaged during the concrete pouring process. This solves the problem that the reinforcing beam 300 cannot be connected to the disc-lock scaffold upright 200 when the position of the reinforcing beam 300 cannot fall at the disc of the disc-lock scaffold upright 200.

[0081] The clamp-type connection device 100 and method for reinforcing the bottom formwork of a concrete horizontal member provided in the above embodiments of the present invention monitor the stress state of the clamp-type connection device 100 connected to the upright 200 of the disc-lock scaffold formwork support system through the load monitoring component 130. This avoids the risk of the connection node between the reinforcing beam 300 and the clamp-type connection device 100 being overloaded, causing it to slide downward relative to the upright 200. This solves the problem of safely monitoring the load applied to the reinforcing beam 300 during concrete pouring of the concrete horizontal member, ensuring the stability of the reinforcing beam 300 in supporting the bottom formwork of the concrete horizontal member, and guaranteeing the quality and safety of the concrete horizontal member pouring construction.

[0082] Horizontal concrete components include, but are not limited to, concrete beams, concrete slabs, bridge beams and slabs, and floor slabs.

[0083] This invention is not limited to the specific embodiments described above. Obviously, the embodiments described above are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of this invention are within the scope of protection of this invention. Those skilled in the art can make other modifications and variations to this invention. Therefore, if these modifications and variations of this invention fall within the scope of the claims of this invention, then this invention also intends to include these modifications and variations.

Claims

1. A method for connecting a concrete horizontal member bottom form reinforcement cross beam, characterized in that, two concrete horizontal member bottom form reinforcement cross beam clamping connection devices are used, the clamping connection device comprises: a clamping hoop for clamping connection on a stand of a disc-type scaffold formwork support system, composed of inner and outer half clamping hoop plates and a plurality of bolts arranged in rows and columns through the inner and outer half clamping hoop plates, the inner and outer half clamping hoop plates each include a semicircular hoop plate and a flat plate on both sides of the semicircular hoop plate, and the inner concave arc surface of the semicircular hoop plate is provided with a rubber pad; a cross beam connecting assembly for connecting a reinforcement cross beam supported on a concrete horizontal member bottom form, comprising a horizontal connecting plate vertically arranged on the semicircular hoop plate of the inner half clamping hoop plate, and a stiffener vertically connected between the horizontal connecting plate and the semicircular hoop plate of the inner half clamping hoop plate, and at least part of the horizontal connecting plate is provided with a silica gel pad; a load monitoring assembly comprising a piezoresistive flexible film pressure sensor arranged between the silica gel pad and the horizontal connecting plate and a pressure monitoring box connected thereto, the piezoresistive flexible film pressure sensor is used to monitor the pressure value of the load applied to the cross beam connecting assembly, and the pressure monitoring box is used to receive the pressure value of the piezoresistive flexible film pressure sensor and compare it with the set early warning value to determine whether the stress state of the clamping connection device of the concrete horizontal member bottom form reinforcement cross beam is safe; a cloud data management platform in communication connection with the pressure monitoring box of the load monitoring assembly, remotely analyzes the stress state of the clamping connection device of the concrete horizontal member bottom form reinforcement cross beam, and remotely monitors whether the stress state of the clamping connection device of the concrete horizontal member bottom form reinforcement cross beam is safe; two clamping connection devices are clamped and connected at the same horizontal height on two stands of a disc-type scaffold formwork support system of a concrete horizontal member, the cross beam connecting assemblies of the two clamping connection devices are arranged opposite to each other, and the two ends of the reinforcement cross beam are respectively pressed and connected on the silica gel pads of the cross beam connecting assemblies of the two clamping connection devices to transmit the load applied to the reinforcement cross beam to the piezoresistive flexible film pressure sensor through the silica gel pad; the piezoresistive flexible film pressure sensor monitors the pressure value of the load borne by the two ends of the reinforcement cross beam and feeds back to the pressure monitoring box, and the pressure monitoring box compares the received pressure value with the set early warning value to determine whether the stress state of the clamping connection device connected to the stand of the disc-type scaffold formwork support system is safe, thereby monitoring the safety of the concrete horizontal member during concrete pouring; the early warning value is set as a normal early warning value, a first early warning value and a second early warning value, the normal early warning value is that the pressure borne by the connecting end of the reinforcement cross beam is less than 80% of the maximum static friction of the clamping hoop, the first early warning value is that the pressure borne by the connecting end of the reinforcement cross beam is in the range of 80% to 100% of the maximum static friction of the clamping hoop, and the second early warning value is that the pressure borne by the connecting end of the reinforcement cross beam is greater than 100% of the maximum static friction of the clamping hoop. When the pressure values of the two pressure monitoring boxes are both less than the normal early warning value, it is judged that the force state of the hoop type connecting device connected to the upright of the disc buckle type scaffold formwork support system is absolutely safe; When the pressure values of the two pressure monitoring boxes are both greater than the normal early warning value and less than the first level early warning value, it is judged that the force state of the hoop type connecting device connected to the upright of the disc buckle type scaffold formwork support system is critical safe; When the pressure value of one pressure monitoring box is greater than the second level early warning value, it is judged that the force state of the hoop type connecting device connected to the upright of the disc buckle type scaffold formwork support system is unsafe.

2. The method of connecting concrete horizontal member formwork reinforcement beams according to claim 1, wherein, The maximum static friction of the hoop is calculated according to formula (1); = （1）； wherein, F is the maximum static friction of the clamp, F is the bolt pre-tightening force of the clamp, is the friction coefficient between the rubber pad and the vertical rod.

3. The method of connecting the concrete horizontal member formwork reinforcement cross-beams according to claim 1, characterized in that, The reinforcing cross beam is a square steel pipe, which is sleeved on the silica gel pad of the cross beam connecting assembly and the inner upper chord surface of the square steel pipe is crimped on the silica gel pad of the cross beam connecting assembly.

4. The method of connecting the concrete horizontal member bed form reinforcement cross beam according to claim 1, characterized by, The pressure monitoring box comprises a box body and a microprocessor in the box body, and the microprocessor is connected with a display, a total switch, a power supply interface, a state indicating lamp, a sensor interface, a correction knob, a early warning value setting button and a buzzer.

5. The method of connecting concrete horizontal member formwork reinforcement crossbeams of claim 1, wherein, The pressure monitoring box is arranged on the plane plate of the outer half hoop plate or the disc buckle type scaffold formwork support system.

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