A vertical deformation measuring device and method for super high-rise buildings

Abstract

The present invention relates to a vertical deformation measuring device and method for a super high-rise building. A liquid storage tank and a hydraulic sensor are provided at the top of the area to be monitored. A hydraulic sensor and a pressure conversion device are respectively arranged at each monitoring point below the top of the area to be monitored. The number of monitoring points is at least one, and they are arranged on the area to be monitored from top to bottom along the height direction of the super high-rise building. The liquid storage tank is communicated with the hydraulic sensor at the top of the area to be monitored of the super high-rise building. The hydraulic sensor and the pressure conversion device are sequentially communicated through pipelines, and the pipelines are filled with liquid. The pressure conversion device is located between two adjacent hydraulic sensors, on the side close to the sensor with a lower height. Compared with the prior art, the pressure conversion device provided by the present invention can proportionally reduce the liquid pressure at the input end, and can convert the large-height-difference hydraulic pressure into small-height-difference hydraulic pressure, which not only helps to improve the measurement accuracy of the hydraulic sensor, but also can avoid the monitoring safety risk caused by excessive pipeline pressure.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction monitoring, and in particular to a vertical deformation measuring device and method for super high-rise buildings. Background Art

[0002] During the construction of super high-rise buildings, the following several methods are usually adopted for vertical deformation monitoring: total station measurement method, GPS measurement method, and laser ranging method.

[0003] For the total station measurement method, a total station is usually set at a certain distance from the super high-rise building, a control point is set at a stable position, and an observation point is set on the super high-rise building. The total station must be visible to the control point and the observation point. At the same time, the distance between the total station and the super high-rise building gradually increases as the building height increases. Otherwise, too large an elevation angle of the total station will affect the observation effect. Moreover, this method can only conduct short-term monitoring, cannot carry out long-term monitoring, and it is also very difficult to carry out automated monitoring.

[0004] For the GPS measurement method, automated measurement is achieved by installing a measuring device at the measurement position. Since the signal of the measuring device is easily blocked by building shading, there should be no obstacles during the monitoring process. There should be a certain distance between the measuring station and transformers, large engines, high-voltage wires, relay stations, microwave signal transmitters, etc. At the same time, there should be no signal reflectors such as fences, houses, large water areas, billboards, etc. around the measuring station. It is very difficult to meet the above conditions during the actual monitoring process, resulting in multipath errors.

[0005] For the laser ranging method, holes are usually reserved on the same projection plane of each floor slab of the super high-rise building to enable the laser to penetrate up and down. A laser transmitter is placed on the bottom floor slab, and a receiver is placed on the top floor slab to measure the height and deformation of the super high-rise building. Since the laser rangefinder has low accuracy in measuring ultra-long distances, it is necessary to set relays in the height direction, that is, the original height is divided into several sections, and laser transmitters and laser receivers are placed in each section. Then, the measurement data of each section are accumulated to obtain the height and deformation of the super high-rise building. This method has poor measurement accuracy and cannot well reflect the vertical deformation of the super high-rise building.

[0006] In summary, the total station measurement method, GPS measurement method, and laser ranging method have poor effects in monitoring the vertical deformation of super high-rise buildings.

[0007] At present, there is also a method of implementing liquid pressure monitoring using a hydraulic sensor, but there are the following problems: It is necessary to vertically arrange multiple measuring points along the height direction of a super high-rise building. Generally, the vertical interval between adjacent measuring points is dozens of meters. Since the vertical deformation of a super high-rise building is relatively small, the deformation amount at an interval of dozens of meters is within a few millimeters. The accuracy of a traditional hydraulic sensor is about 1-5% of the range. If the range is converted according to 20m, its accuracy is about 20mm. Therefore, using a traditional hydraulic sensor to monitor vertical deformation cannot meet its accuracy requirements; moreover, for the connecting pipe arranged along the height direction of a super high-rise building, when the vertical height difference of the super high-rise building increases, the liquid pressure increases. Once the lower end of the pipe is damaged, the powerful liquid pressure is extremely likely to cause a safety accident.

[0008] Therefore, it is necessary to improve the above-mentioned scheme of implementing liquid pressure monitoring using a hydraulic sensor to overcome its defects of low accuracy and easy damage due to large pipeline pressure. Summary of the Invention

[0009] The purpose of the present invention is to provide a device and method for measuring the vertical deformation of a super high-rise building to overcome the above-mentioned defects existing in the prior art.

[0010] The purpose of the present invention can be achieved by the following technical solutions:

[0011] A device for measuring the vertical deformation of a super high-rise building, a liquid storage tank and a hydraulic sensor are provided at the top of the area to be monitored of the super high-rise building. A hydraulic sensor and a pressure conversion device are respectively arranged at each monitoring point below the top of the area to be monitored. The number of monitoring points is at least 1, and they are arranged on the area to be monitored from top to bottom along the height direction of the super high-rise building. The liquid storage tank is communicated with the hydraulic sensor at the top of the area to be monitored of the super high-rise building. The hydraulic sensor and the pressure conversion device are sequentially communicated through a pipeline, and the pipeline is filled with liquid. The pressure conversion device is located between two adjacent hydraulic sensors, on the side close to the hydraulic sensor with a lower height.

[0012] Further, the pressure conversion device includes a cross beam, a balance arm with a chute, a support frame, a first hydraulic cylinder, a second hydraulic cylinder, two force transmission rods, and two mounting bases. The two mounting bases are respectively installed at both ends of the cross beam. The first hydraulic cylinder and the second hydraulic cylinder are respectively installed at both ends of the cross beam through the two mounting bases. The first hydraulic cylinder is connected to a hydraulic sensor above the pressure conversion device through a pipeline, and the second hydraulic cylinder is connected to a hydraulic sensor at the same monitoring point as the pressure conversion device through a pipeline. The balance arm is parallel to the cross beam and is arranged at the bottoms of the first hydraulic cylinder and the second hydraulic cylinder. The first ends of the two force transmission rods are respectively hinged to both ends of the balance arm, and the second ends of the two force transmission rods are respectively hinged to the sealing pistons in the inner cavities of the first hydraulic cylinder and the second hydraulic cylinder. The bottom of the support frame is movably connected to the chute of the balance arm and can move along the chute, and the top of the support frame contacts the cross beam.

[0013] Further, a distance scale is also provided on the cross beam, and the distance scale is adapted to the length of the chute of the balance arm. A position pointer is provided at the top of the support frame.

[0014] Further, the support frame includes a support rod, a position pointer, a support seat, and a screw rod. The bottom of the support rod is movably connected to the chute of the balance arm and can move along the chute. The position pointer and the support seat are fixedly connected to the top of the support rod. The screw rod is parallel to the cross beam, and the screw rod is movably connected to the cross beam through two pedestals arranged at both ends of the cross beam. The support seat is sleeved on the screw rod and is threadedly connected thereto.

[0015] Further, a knob is provided at the end of the screw rod.

[0016] Further, a through hole is provided at the bottom of the support rod, and the support rod is movably connected to the balance arm through a connecting member passing through the through hole and the chute.

[0017] A method for measuring the vertical deformation of a super high-rise building includes the following steps:

[0018] S1. Install the above deformation measurement device, and determine the measuring ranges of each hydraulic sensor and the height difference between adjacent monitoring points;

[0019] S2. Calculate the positions of the support frames in each pressure conversion device according to the measuring ranges of each hydraulic sensor and the height difference between adjacent monitoring points;

[0020] S3. Obtain the measured values of each hydraulic sensor, and calculate the vertical deformation values of each monitoring point according to the measured values of each hydraulic sensor, the positions of the support frames in each pressure conversion device, the measuring ranges of each hydraulic sensor, and the height difference between adjacent monitoring points.

[0021] Further, step S2 is specifically:

[0022] Number the hydraulic sensors at each monitoring point as 1, 2... n from bottom to top, and number the hydraulic sensor at the top of the area to be monitored as n + 1;

[0023] Calculate the position of the support frame in the nth pressure conversion device. The calculation formula is:

[0024]

[0025] Calculate the positions of the support frames in the remaining pressure conversion devices. The calculation formula is:

[0026]

[0027] Among them, H i represents the height difference between the ith hydraulic sensor and the (i + 1)th hydraulic sensor, L represents the measuring range of the hydraulic sensor, and L1 i represents the distance between the support frame of the ith pressure conversion device and the first hydraulic cylinder, and L2 i represents the distance between the support frame of the ith pressure conversion device and the second hydraulic cylinder, and K% is the preset distribution range of the measured values of the hydraulic sensor.

[0028] Furthermore, the value of K% is 60%.

[0029] Furthermore, step S3 is specifically as follows:

[0030] Obtain the measured values of each hydraulic sensor. Taking the monitoring point at the lowest position in the area to be monitored of the super high-rise building as the reference point, calculate the vertical deformation value of each monitoring point relative to the reference point. The calculation formula is:

[0031]

[0032] Among them, ΔH i is the vertical deformation of the monitoring point where the (i + 1)th hydraulic sensor is located, F i ' represents the pressure measured by the ith hydraulic sensor, ρ is the liquid density, g is the acceleration due to gravity, and H i represents the height difference between the ith hydraulic sensor and the (i + 1)th hydraulic sensor, L represents the measuring range of the hydraulic sensor, and L1 i represents the distance between the support frame of the ith pressure conversion device and the first hydraulic cylinder, and L2 i represents the distance between the support frame of the ith pressure conversion device and the second hydraulic cylinder.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] (1) The pressure conversion device can proportionally reduce the liquid pressure at the input end, so that the large-height-difference hydraulic pressure can be converted into small-height-difference hydraulic pressure, which helps to improve the measurement accuracy of the hydraulic sensor.

[0035] (2) Through the pressure conversion device, the liquid-filled pipeline can also be divided into several sections, avoiding damage to the bottom of the pipeline caused by the continuous accumulation of liquid pressure as the pipeline height difference increases, thereby reducing the safety risk of vertical deformation monitoring.

[0036] (3) The present invention can achieve accurate and automatic measurement of the height and vertical deformation of super high-rise buildings, has high measurement accuracy, and has a simple and reliable structure. It can also be used for long-term measurement of the vertical deformation of super high-rise structures, and has the advantages of being stable and reliable, easy to operate, and less affected by the outside world. Brief Description of the Drawings

[0037] Figure 1 is the layout diagram of the super high-rise building vertical deformation measuring device of the present invention;

[0038] Figure 2 is the structural schematic diagram of the pressure conversion device of the present invention;

[0039] Figure 3 is Figure 2 the A-A cross-sectional view of

[0040] Figure 4 is the top view of the support frame and cross beam of the present invention.

[0041] Figure 5 is the structural schematic diagram of the super high-rise building vertical deformation measuring device of the present invention;

[0042] Reference numerals: 1, the area to be monitored of the super high-rise building; 2, the hydraulic sensor; 3, the pressure conversion device; 4, the liquid storage tank; 5, the pipeline; 31, the cross beam; 32, the installation base; 33, the first hydraulic cylinder; 331, the liquid inlet of the first hydraulic cylinder; 34, the second hydraulic cylinder; 341, the liquid outlet of the second hydraulic cylinder; 35, the sealing piston; 36, the force transmission rod; 37, the balance arm; 371, the chute; 38, the support frame; 381, the support rod; 382, the position pointer; 383, the support; 384, the screw; 385, the base; 386, the knob. Detailed Embodiment

[0043] The present invention will be described in detail below with reference to the drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and the detailed implementation method and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0044] In the accompanying drawings, components with the same structure are denoted by the same numerical labels, and components with similar structures or functions everywhere are denoted by similar numerical labels. The dimensions and thicknesses of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the dimensions and thicknesses of each component. To make the illustration clearer and show the mating relationships between various components, in some places in the drawings, the components are appropriately scaled and the distances between the components are increased or decreased.

[0045] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships in which the product of this application is customarily placed during use, or the orientation or positional relationships commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0046] In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0047] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0048] Embodiment 1:

[0049] A vertical deformation measuring device for a super high-rise building, such as Figures 1 to 5As shown in the figure, in this solution, a liquid storage tank 4 and a hydraulic sensor 2 are provided at the top of the area 1 to be monitored in the super high-rise building. The liquid storage tank 4 and the hydraulic sensor 2 at the top of the area 1 to be monitored in the super high-rise building are connected and communicate with each other. The liquid storage tank 4 placed at the highest position of the area 1 to be monitored in the super high-rise building can provide liquid for the connected pipeline 5, hydraulic sensor 2 and pressure conversion device 3. A hydraulic sensor 2 and a pressure conversion device 3 are respectively arranged at each monitoring point below the top of the area 1 to be monitored in the super high-rise building. The pressure conversion device 3 is located between two adjacent hydraulic sensors 2 and is close to the side of the hydraulic sensor 2 with a lower height. Such arrangement is repeated until the bottom of the super high-rise building. A plurality of hydraulic sensors 2 and a plurality of pressure conversion devices 3 are connected through a pipeline 5, and the pipeline 5 is filled with liquid. The monitoring point at the lowest position of the area 1 to be monitored in the super high-rise building is used as the reference point for vertical deformation measurement. When the vertical deformation occurs at the position where a certain monitoring point is located, the height difference between the hydraulic sensor 2 arranged at this position and the reference point changes, resulting in the change of the liquid pressure in the pipeline 5. The change value of the liquid pressure is measured by the hydraulic sensor 2, so as to determine the magnitude of the change in the vertical height difference.

[0050] Compared with the prior art, in this application, a pressure conversion device 3 is provided. Since the pressure conversion device 3 can proportionally reduce the liquid pressure at the input end, it can convert the large-height-difference hydraulic pressure into small-height-difference hydraulic pressure, which helps to improve the measurement accuracy of the hydraulic sensor 2. Moreover, through the pressure conversion device 3, the pipeline 5 filled with liquid can also be divided into several sections, avoiding the damage of the bottom of the pipeline 5 caused by the continuous accumulation of liquid pressure as the height difference of the pipeline 5 increases, thereby reducing the safety risk of vertical deformation monitoring. Therefore, the present invention can achieve accurate and automatic measurement of the height and vertical deformation of super high-rise buildings, and has high measurement accuracy. It can also be used for long-term measurement of the vertical deformation of super high-rise structures, and has the advantages of stable reliability, simple operation and little influence from the outside.

[0051] Specifically, such as Figure 2As shown in the figure, the pressure conversion device 3 includes a cross beam 31, a balance arm 37 with a chute 371, a support frame 38, a first hydraulic cylinder 33, a second hydraulic cylinder 34, two force transmission rods 36, and two mounting bases 32. The two mounting bases 32 are respectively installed at both ends of the cross beam 31. The first hydraulic cylinder 33 and the second hydraulic cylinder 34 are respectively installed at both ends of the cross beam 31 through the two mounting bases 32. The liquid inlet 331 of the first hydraulic cylinder 33 is connected to the hydraulic sensor 2 above the pressure conversion device 3 through a pipeline 5. The liquid outlet 341 of the second hydraulic cylinder 34 is connected to the hydraulic sensor 2 at the same monitoring point as the pressure conversion device 3 through a pipeline 5. The balance arm 37 is parallel to the cross beam 31 and is arranged at the bottoms of the first hydraulic cylinder 33 and the second hydraulic cylinder 34. The first ends of the two force transmission rods 36 are respectively hinged to both ends of the balance arm 37. The second ends of the two force transmission rods 36 are respectively hinged to the sealing pistons 35 in the inner cavities of the first hydraulic cylinder 33 and the second hydraulic cylinder 34. The bottom of the support frame 38 is movably connected to the chute 371 of the balance arm 37 and can move along the chute 371. The top of the support frame 38 contacts the cross beam 31. By adjusting the position of the support frame 38 on the chute 371, the lever arms of the liquid pressure at the input end and the output end are changed, and the liquid pressure at the input end is proportionally reduced, so as to convert the large-height-difference hydraulic pressure into small-height-difference hydraulic pressure, which helps to improve the measurement accuracy of the hydraulic sensor 2 and reduce the pressure of the pipeline 5.

[0052] As Figure 2 shown, assume that the liquid density is ρ, the acceleration due to gravity is g, the height difference of the hydraulic sensor 2 between the two monitoring points is H, the cross-sectional areas of the two hydraulic cylinders are both S, the distance between the support frame 38 and the first hydraulic cylinder 33 is L1, the distance between the support frame 38 and the second hydraulic cylinder 34 is L2, the input-end pressure of the pressure conversion device 3 is F1, and the output-end pressure is F2.

[0053] According to the principle of force balance, it can be known that:

[0054] F1 × L1 = F2 × L2

[0055]

[0056] According to the principle of liquid pressure and force calculation, it can be known that:

[0057] F1 = ρ × g × H × S

[0058] From the above formulas, it can be known that:

[0059]

[0060] It can be seen from this that different output end pressures F2 can be obtained by adjusting the length ratio of L1 to L2. For example, if L1:L2 = 10, then F2 = 0.1xF1. After passing through the pressure conversion device 33, the output end pressure F2 is reduced to one-tenth of the input end pressure F1, which helps to improve the measurement accuracy of the hydraulic sensor 22.

[0061] As Figure 2 shown, a distance scale is also provided on the cross beam 31, and the distance scale is adapted to the length of the sliding groove 371 of the balance arm 37. A position pointer is provided at the top of the support frame 38, and the position pointer cooperates with the distance scale to accurately determine the position of the support frame 38.

[0062] As Figure 3 and Figure 4 shown, in this embodiment, the support frame 38 includes a support rod 381, a position pointer 382, a support 383 and a screw 384. The bottom of the support rod 381 is movably connected to the sliding groove 371 of the balance arm 37 and can move along the sliding groove 371. The position pointer 382 and the support 383 are fixedly connected to the top of the support rod 381. The horizontally arranged screw 384 is movably connected to the cross beam 31 through two bases 385 at both ends of the cross beam 31. The support 383 is sleeved on the screw 384 and is threadedly connected thereto. When the screw 384 is rotated, the support 383 threadedly connected to the screw 384 moves accordingly, synchronously driving the support rod 381 and the position pointer 382 to move horizontally along the sliding groove 371, thereby changing the lever arm lengths of the input end liquid pressure and the output end liquid pressure. In addition, to improve the convenience of adjusting the screw 384, a knob 386 is further provided at the end of the screw 384. A through hole is provided at the bottom of the support rod 381, and the support rod 381 is movably connected to the balance arm 37 through a pin or bolt respectively passing through the through hole and the sliding groove 371, so that the support rod 381 can move smoothly along the sliding groove 371. The structure of the support frame 38 in this embodiment is only an example and is not limited thereto. For example, the support 383 can be arranged on the top of the support rod 381, the position pointer 382 can be arranged on the support 383, the two bases 385 can be arranged on both sides of the lower end of the cross beam 31 or on two mounting bases 32, or other mechanical structures can be used to realize the position adjustment of the support 383. A sliding block cooperating with the sliding groove 371 can be arranged at the bottom of the support rod 381, etc.

[0063] Embodiment 2:

[0064] A method for measuring the vertical deformation of a super high-rise building, comprising the following steps:

[0065] S1. Install the deformation measurement device described in Embodiment 1, and determine the range of each hydraulic sensor 2 and the height difference between adjacent monitoring points;

[0066] The hydraulic sensors 2 at each monitoring point are numbered 1, 2... n from bottom to top, and the hydraulic sensor 2 at the top of the area 1 to be monitored is numbered n + 1. The pressure conversion devices 3 at each monitoring point are numbered 1, 2... n from bottom to top;

[0067] Obtain the height difference H between each monitoring point i (from bottom to top are H 1 , H 2 …H n , where i is the sensor number. The hydraulic sensors 2 at each monitoring point are numbered 1, 2... n from bottom to top, and the hydraulic sensor 2 at the top of the area 1 to be monitored is numbered n + 1). Assume the range of the hydraulic sensor 2 is L. Usually, within the range of 30% - 80% of the range L of the hydraulic sensor 2, the measurement accuracy is most guaranteed. Here, K% represents the value range of the range of the hydraulic sensor 2. To improve the measurement accuracy, in this embodiment, a hydraulic sensor 2 with a range of about 1m is preferably selected;

[0068] S2. Calculate the position of the support frame 38 in each pressure conversion device 3 according to the range of each hydraulic sensor 2 and the height difference between adjacent monitoring points. Among them, the position of the support frame 38 of the i-th pressure conversion device 3 is L1 i and L2 i ratio;

[0069] Since there is only the liquid storage tank 4 and the hydraulic sensor 2 at the top of the area 1 to be monitored above the n-th pressure conversion device 3, it is only affected by the liquid pressure from above. Therefore,

[0070]

[0071] So its ratio calculation formula is as follows:

[0072]

[0073] For the monitoring points at other locations, in addition to the liquid pressure caused by the pipeline height difference, there is also an additional pressure converted from the liquid pressure at the previous monitoring point by the pressure conversion device 3. Therefore,

[0074]

[0075] So its ratio calculation formula is:

[0076]

[0077] H i represents the height difference between the i-th hydraulic sensor 2 and the (i + 1)-th hydraulic sensor 2, and H i+1 is the height difference between the (i + 1)-th hydraulic sensor 2 and the (i + 2)-th hydraulic sensor 2. L represents the range of the hydraulic sensor 2, and L1i Denote the distance between the support frame 38 of the $i$-th pressure conversion device 3 and its first hydraulic cylinder 33 as $L_2$. i Denote the distance between the support frame 38 of the $i$-th pressure conversion device 3 and its second hydraulic cylinder 34 as $L_1$. i+1 For the pressure conversion device 3 connected to the $(i + 1)$-th hydraulic sensor 2, it is the distance between the support frame 38 and one side of the force transmission rod 36, denoted as $L_2$. i+1 For the pressure conversion device 3 connected to the $(i + 1)$-th hydraulic sensor 2, it is the distance between the support frame 38 and the other side of the force transmission rod 36; $K\%$ is the preset distribution range of the measured values of the hydraulic sensor 2, with a range between 30% and 80%. Preferably, 60% can be taken to improve the measurement accuracy of the hydraulic sensor 2.

[0078] Determine the positions of the support frames 38 in each pressure conversion device 3 according to the above formulas and adjust them according to the calculated ratios, so that the hydraulic sensors 2, pressure conversion devices 3, and pipelines 5 in the vertical deformation measurement device of the super high-rise building are filled with liquid and connected. Read the initial value and start automatic monitoring at a certain sampling frequency.

[0079] S3. Obtain the measured values of each hydraulic sensor 2, and calculate the vertical deformation values of each monitoring point based on the measured values of each hydraulic sensor 2, the positions of the support frames 38 in each pressure conversion device 3, the measurement ranges of each hydraulic sensor 2, and the height differences between adjacent monitoring points.

[0080] Assume the height difference between the $i$-th hydraulic sensor 2 and the $(i + 1)$-th hydraulic sensor 2 is $H$. i Then the initial pressure $F$ of the $i$-th hydraulic sensor 2 i is:

[0081]

[0082] When an unknown vertical deformation $\Delta H$ occurs at the monitoring point where the $(i + 1)$-th hydraulic sensor 2 is located (the top of the area to be detected when $i = n$). i Then the pressure $F'$ measured by the $i$-th hydraulic sensor 2 at this time i is:

[0083]

[0084] Therefore, $\Delta H$ can be calculated based on the measured pressure change of the $i$-th hydraulic sensor 2. i Taking the monitoring point at the lowest position in the area to be monitored of the super high-rise building as the reference point, successively measure the pressure change values of the remaining monitoring points relative to the reference point, and calculate the vertical deformation values of each monitoring point relative to the reference point:

[0085]

[0086] Among them, ΔH i is the vertical deformation of the monitoring point where the (i + 1)-th hydraulic sensor 2 is located, and F i ' is the pressure measured by the i-th hydraulic sensor 2.

[0087] For the method for measuring the vertical deformation of a super high-rise building according to the present invention, first, the height differences between the monitoring points of the super high-rise building are obtained. According to the height differences between the monitoring points and the measuring range of the hydraulic sensor 2, the positions of the support frames 38 in each pressure conversion device 3 are determined and adjusted so that the hydraulic sensor 2, the pressure conversion device 3, and the pipeline 5 are filled with liquid and connected. Automatic monitoring is started at a certain frequency. Taking the monitoring point at the lowest position in the area 1 to be monitored of the super high-rise building as the reference point, the pressure change values of each monitoring point relative to the reference point are measured in sequence, and the vertical deformation values of each monitoring point relative to the reference point are calculated; the liquid pressure at the input end is proportionally reduced through the pressure conversion device 3, so that the large-height-difference hydraulic pressure can be converted into small-height-difference hydraulic pressure, which helps to improve the measurement accuracy of the hydraulic sensor 2. Moreover, through the pressure conversion device 3, the pipeline 5 filled with liquid can also be divided into several sections, avoiding the continuous accumulation of liquid pressure caused by the increase in the height difference of the pipeline 5 and reducing the safety risk of vertical deformation monitoring.

[0088] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention through logical analysis, reasoning, or limited experiments based on the concept of the present invention on the basis of the prior art should fall within the protection scope determined by the claims.

Claims

1. A vertical deformation measuring device for super high-rise buildings, characterized in that, a liquid storage tank and a hydraulic sensor are provided at the top of the area to be monitored of the super high-rise building. A hydraulic sensor and a pressure conversion device are respectively arranged at each monitoring point below the top of the area to be monitored. The number of monitoring points is at least 1, and they are arranged on the area to be monitored from top to bottom along the height direction of the super high-rise building. The liquid storage tank is communicated with the hydraulic sensor at the top of the area to be monitored of the super high-rise building. The hydraulic sensor and the pressure conversion device are sequentially communicated through pipelines, and the pipelines are filled with liquid. The pressure conversion device is located between two adjacent hydraulic sensors, on the side close to the hydraulic sensor with a lower height; the pressure conversion device includes a cross beam, a balance arm with a chute, a support frame, a first hydraulic cylinder, a second hydraulic cylinder, two force transmission rods and two mounting bases. The two mounting bases are respectively installed at both ends of the cross beam. The first hydraulic cylinder and the second hydraulic cylinder are respectively installed at both ends of the cross beam through the two mounting bases. The first hydraulic cylinder is communicated with the hydraulic sensor above the pressure conversion device through a pipeline. The second hydraulic cylinder is communicated with the hydraulic sensor at the same monitoring point as the pressure conversion device through a pipeline. The balance arm is parallel to the cross beam and is arranged at the bottoms of the first hydraulic cylinder and the second hydraulic cylinder. The first ends of the two force transmission rods are respectively hinged to both ends of the balance arm. The second ends of the two force transmission rods are respectively hinged to the sealing pistons in the inner cavities of the first hydraulic cylinder and the second hydraulic cylinder. The bottom of the support frame is movably connected to the chute of the balance arm and can move along the chute. The top of the support frame contacts the cross beam; the support frame includes a support rod, a position pointer, a support and a screw rod. The bottom of the support rod is movably connected to the chute of the balance arm and can move along the chute. The position pointer and the support are fixedly connected to the top of the support rod. The screw rod is parallel to the cross beam. The screw rod is movably connected to the cross beam through two pedestals arranged at both ends of the cross beam. The support is sleeved on the screw rod and is threadedly connected thereto; a through hole is provided at the bottom of the support rod. The support rod is movably connected to the balance arm through a connecting piece passing through the through hole and the chute.

2. The vertical deformation measuring device for super high-rise buildings according to claim 1, characterized in that, distance scales are further provided on the cross beam, and the distance scales are adapted to the length of the chute of the balance arm. A position pointer is provided at the top of the support frame.

3. The vertical deformation measuring device for super high-rise buildings according to claim 1, characterized in that, a knob is provided at the end of the screw rod.

4. A vertical deformation measuring method for super high-rise buildings, characterized in that, it includes the following steps: S1. Install the deformation measuring device as described in any one of claims 1-3, and determine the measuring ranges of each hydraulic sensor and the height difference between adjacent monitoring points; S2. Calculate the positions of the support frames in each pressure conversion device according to the measuring ranges of each hydraulic sensor and the height difference between adjacent monitoring points; S3. Obtain the measured values of each hydraulic sensor, and calculate the vertical deformation values of each monitoring point based on the measured values of each hydraulic sensor, the positions of the support frames in each pressure conversion device, the measurement ranges of each hydraulic sensor, and the height differences between adjacent monitoring points.

5. The method for measuring the vertical deformation of a super high-rise building according to claim 4, wherein, step S2 is specifically: Number the hydraulic sensors of each monitoring point as 1, 2... n from bottom to top, and the hydraulic sensor at the top of the area to be monitored is numbered n + 1; Calculate the position of the support frame in the nth pressure conversion device, and the calculation formula is: Calculate the positions of the support frames in the remaining pressure conversion devices, and the calculation formula is: Among them, H i represents the height difference between the i-th hydraulic sensor and the (i + 1)-th hydraulic sensor, L represents the measuring range of the hydraulic sensor, and L1 i represents the distance between the support frame of the i-th pressure conversion device and the first hydraulic cylinder, and L2 i represents the distance between the support frame of the i-th pressure conversion device and the second hydraulic cylinder, and K% is the preset distribution range of the measured values of the hydraulic sensor.

6. The method for measuring the vertical deformation of a super high-rise building according to claim 4, wherein, The value of K% is 60%.

7. The method for measuring the vertical deformation of a super high-rise building according to claim 4, wherein, step S3 is specifically: Obtain the measured values of each hydraulic sensor, take the monitoring point at the lowest position in the area to be monitored of the super high-rise building as the reference point, and calculate the vertical deformation values of each monitoring point relative to the reference point. The calculation formula is: Among them, ΔH i is the vertical deformation of the monitoring point where the (i + 1)-th hydraulic sensor is located, F i ' represents the pressure measured by the i-th hydraulic sensor, ρ is the liquid density, g is the acceleration due to gravity, H i represents the height difference between the i-th hydraulic sensor and the (i + 1)-th hydraulic sensor, L represents the range of the hydraulic sensor, L1 i represents the distance between the support frame of the i-th pressure conversion device and the first hydraulic cylinder, L2 i represents the distance between the support frame of the i-th pressure conversion device and the second hydraulic cylinder.

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