A force monitoring device for a building construction framework

Abstract

The present invention provides a force monitoring device for a building construction framework, which includes a framework formed by connecting multiple vertical poles and multiple horizontal bars; the vertical poles are arranged vertically, and the horizontal bars are fixedly arranged on the vertical poles in the horizontal direction; multiple groups of detection devices are arranged on the vertical poles in the vertical direction, respectively used for detecting the load and inclination angle of the framework; by adopting the technical solution provided by the present invention, through the real-time monitoring of the framework, the real-time data of the framework load during concrete pouring of the framework can be collected. By collecting and analyzing the construction data of different concrete structures, the erection of the framework can be optimized to ensure the quality and safety during the pouring process, improve the construction efficiency, and can evaluate the erection quality of the framework, reducing the framework erection cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of force monitoring of a framework, and particularly relates to a force monitoring device for a building construction framework. Background Art

[0002] Safety accidents caused by the collapse of existing construction site scaffolding occur frequently. The fundamental reason is that there is no monitoring during the use of the scaffolding, especially the deformation of the framework cannot be monitored in real time; and the main reason for the collapse of the scaffolding is the structural instability of the framework, that is, a large change occurs in the lateral displacement of the framework.

[0003] Among existing sensor devices, the pressure sensor for measuring load and the inclination sensor for measuring rotation are both relatively mature products and technologies, and transmitting the sensor data signal to various user terminals through Internet technology is also a relatively conventional technology; however, on a construction site, the lateral displacement of the framework cannot be measured, and the current measurement means cannot achieve it, or the difficulty and cost of achieving it are very high; the specific reasons are as follows: the force on the framework is uneven, and the force inside the framework is often large, but the displacement measurement of the internal framework cannot be carried out using a traditional theodolite, and it is also impossible to install a displacement gauge on site. Therefore, the lateral displacement of the framework is the control blind spot during the construction process and the main reason for the collapse of the framework.

[0004] Due to this measurement blind spot in the above-mentioned framework, in order to increase the safety factor, construction enterprises often increase the amount of the framework used and reduce the load on the members. Although increasing the safety redundancy in this way can solve the safety problem, it will cause waste of materials and provide an opportunity for material suppliers to cut corners, thus forming a vicious cycle.

[0005] At the same time, the quality of the scaffolding comes from the material quality on the one hand, and more importantly, the erection quality. How to inspect the erection quality of the framework? Most current construction sites use the preloading method, but the preloading load is far from the actual load and cannot restore the actual situation. Therefore, preloading cannot accurately judge the erection quality of the framework. During the concrete pouring process, which often lasts for several hours and during which the load is constantly changing, the deformation of the framework can only be judged by experience. Without data support, potential safety hazards still exist.

[0006] Based on the above technical problems existing in the construction site scaffolding, there is no relevant solution; therefore, it is urgent to seek an effective solution to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to propose a force monitoring device for a building construction framework aiming at the deficiencies in the above technologies, aiming to solve the problem that the deformation of the existing building framework cannot be monitored.

[0008] The present invention provides a force monitoring device for a building construction framework, including a framework formed by connecting multiple vertical poles and multiple horizontal bars; the vertical poles are arranged vertically, and the horizontal bars are fixedly arranged on the vertical poles horizontally; multiple groups of detection devices are arranged vertically on the vertical poles, respectively used for detecting the load and tilt angle of the framework.

[0009] Further, it further includes a steel wire rope, and the steel wire rope is fixedly arranged vertically inside the framework; an inclination sensor is arranged on the steel wire rope, and the inclination sensor is used for detecting the tilt angle of the steel wire rope.

[0010] Further, the steel wire rope is arranged vertically at the central position formed by four vertical poles; the four vertical poles are connected horizontally through horizontal bars; the upper end of the steel wire rope is fixedly connected to the horizontal bar at the top of the vertical pole, and the lower end of the steel wire rope is fixedly connected to the horizontal bar at the bottom of the vertical pole or directly fixed on the ground.

[0011] Further, the detection device includes a pressure sensor and an inclination sensor; the pressure sensors are respectively arranged at the top and bottom of the vertical pole, used for detecting the load of the framework; and / or, the inclination sensors are respectively arranged at the top, middle and bottom of the vertical pole, used for detecting the tilt angle of the vertical pole.

[0012] Further, both ends of the steel wire rope are fixedly arranged inside the framework through wire rope clips; a wire rope tightener is arranged on the steel wire rope; and / or, the steel wire rope is an anti-twist wire rope.

[0013] Further, both ends of the steel wire rope are fixedly arranged on the horizontal bar inside the framework through wire rope clips; a positioning plate is arranged on the steel wire rope, and the inclination sensor is fixed on the positioning plate through bolts.

[0014] Further, both ends of the horizontal bar are buckled on the vertical pole of the framework through right-angle fasteners; both ends of the right-angle fastener are respectively sleeved on the horizontal bar and the vertical pole; both the horizontal bar and the vertical pole are steel pipes.

[0015] Further, the detection device includes an inclination sensor; if the tilt angle of the framework detected by the inclination sensor is a, the displacement ΔL of the framework in the horizontal direction is:

[0016] △L = tan(90 - a) * H; where H is the height of the framework.

[0017] Further, it further includes a control terminal, and the control terminal is communicatively connected with the detection device; the control terminal is used for receiving the tilt angle and load of the framework monitored by the detection device, and calculating the displacement of the framework in the horizontal direction.

[0018] Further, it further includes an alarm device, and the alarm device is communicatively connected with the control terminal. When the control terminal receives that the tilt angle or the calculated lateral displacement exceeds the preset value, the control terminal controls the alarm device to give an alarm.

[0019] Adopting the above technical solution, through the real-time monitoring of the framework, the real-time data of the load during the concrete pouring of the framework can be collected. By collecting and analyzing the construction data of different concrete structures, the erection of the framework can be optimized to ensure the quality and safety of the pouring process, improve the construction efficiency, and can evaluate the erection quality of the framework to reduce the erection cost of the framework. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0021] The present invention will be further described below in conjunction with the drawings:

[0022] Figure 1 It is a top view of a device for monitoring the stress of a building construction framework according to the present invention;

[0023] Figure 2 It is a schematic diagram of the installation of the vertical poles, horizontal bars and steel wire ropes according to the present invention;

[0024] Figure 3 It is a front view of the installation of the steel wire rope and the inclination sensor according to the present invention;

[0025] Figure 4 It is a side view of the installation of the steel wire rope and the inclination sensor according to the present invention;

[0026] Figure 5 It is a front view of the installation of the vertical pole and the inclination sensor according to the present invention;

[0027] Figure 6 It is a top view of the installation of the vertical pole and the inclination sensor according to the present invention;

[0028] Figure 7 It is a front view of a device for monitoring the stress of a building construction framework in an undeformed state according to the present invention;

[0029] Figure 8 It is a front view of a device for monitoring the stress of a building construction framework in a deformed state according to the present invention;

[0030] Figure 9 It is a comparison schematic diagram of the deformed and undeformed states of a device for monitoring the stress of a building construction framework according to the present invention;

[0031] Figure 10 It is a top view of a device for monitoring the stress of a building construction framework in an undeformed state according to the present invention;

[0032] Figure 11 It is a comparison schematic diagram of the deformed and undeformed states in the top view direction of a device for monitoring the stress of a building construction framework according to the present invention.

[0033] In the figure: 1, vertical pole; 2, cross bar; 3, steel wire rope; 4, right-angle buckle; 5, inclination sensor; 6, positioning plate; 7, bolt; 8, steel wire rope clip; 9, wire tightener; 10, frame body; 11, steel pipe; 12, ground. Specific embodiments

[0034] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 invention.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0037] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Such as Figures 1 to 11As shown in the figure, the present invention provides a force monitoring device for a building construction framework, including a framework 10, which is the framework used in building construction projects and is set on the construction ground 12; the framework 10 is connected by multiple vertical poles 1 and multiple horizontal bars 2, and both the vertical poles 1 and the horizontal bars 2 are steel pipes; among them, the vertical poles 1 are arranged vertically, and the horizontal bars 2 are fixedly arranged horizontally on the vertical poles 1 to form a cuboid-shaped framework structure for supporting building materials; specifically, multiple groups of detection devices are arranged vertically on the vertical poles 1, and the multiple groups of detection devices are respectively used to detect the load and inclination angle of the framework 10. Further, the multiple groups of detection devices include a first group of sensors, a second group of sensors, and a third group of sensors. The first group of sensors is arranged at the top of the vertical pole 1, the second group of sensors is arranged in the middle of the vertical pole 1, and the third group of sensors is arranged at the bottom of the vertical pole 1; specifically, multiple groups of detection devices are arranged vertically on the vertical pole 2 to detect the inclination angle and pressure at different heights of the vertical pole 2, which is convenient for analyzing the force condition and deformation degree of the framework 1. By adopting the above scheme, the force and inclination angle of the construction framework at the construction site can be detected in real time, and then the force condition of the framework can be further analyzed, which is beneficial to ensuring the safety of building construction.

[0039] Preferably, in combination with the above scheme, as Figures 1 to 11 shown in the figure, the force monitoring device for a building construction framework provided by the present invention further includes a steel wire rope, which can be fixedly arranged vertically inside the framework 10, and an inclination sensor 5 is arranged on the steel wire rope. The inclination sensor 5 is used to detect the inclination angle of the steel wire rope 3, so as to indirectly measure the inclination angle of the framework 1; specifically, the inclination sensor 5 includes a first inclination sensor, a second inclination sensor, and a third inclination sensor. The first inclination sensor is arranged at the top of the steel wire rope, the second inclination sensor is arranged in the middle of the steel wire rope, and the third inclination sensor is arranged at the bottom of the steel wire rope. Multiple inclination sensors are used to measure the inclination angles of the steel wire rope at different heights, which is convenient for measuring the inclination angles of different heights of the framework, reducing the measurement error of the sensor itself or the measurement error caused by wind load, and thus facilitating the calculation and analysis of the force and deformation condition of the framework; theoretically, the angle of the steel wire rope is a value, but due to the data drift of the sensor itself, or due to the changes in wind load or other loads, the data of sensors at different positions are different. This kind of error can be eliminated or reduced through comprehensive analysis.

[0040] Preferably, in combination with the above scheme, as Figures 1 to 11As shown in the figure, the force monitoring device for a building construction framework provided by the present invention further includes a steel wire rope 3, which is arranged vertically at the central position formed by four vertical poles; the four vertical poles are connected horizontally by cross bars; the upper end of the steel wire rope 3 is fixedly connected to the cross bar at the top of the vertical pole, and the lower end of the steel wire rope 3 is fixedly connected to the cross bar at the bottom of the vertical pole or directly fixed on the ground; specifically, both ends of the steel wire rope 3 are fixedly arranged on the cross bars 2 on opposite sides inside the framework 10 through wire rope clips 8 and are located at the middle position, and a positioning plate 6 is provided on the steel wire rope 3, and the inclination sensor 5 is fixed on the positioning plate 6 by bolts 7, so the installation is relatively convenient and reliable; at the same time, it is convenient to adjust the position and horizontal angle of the sensor to determine the X and Y positions.

[0041] With the above scheme, by monitoring the change angle of the steel wire rope and through calculation, the lateral displacement of the framework is obtained. By analyzing the mutual relationship among the load, lateral displacement and deformation of the framework, it is determined whether the framework is in a safe state, thus providing safety guarantee for the building construction framework; in existing building construction frameworks, generally as the load increases, the vertical poles will show an S-shaped deformation, which is detected by the inclination sensors on the vertical poles. When this deformation becomes larger, the limit value of the stability of the compression bar of the vertical pole becomes smaller. At the same time, the lateral displacement of the framework will also cause the force on the compression bar to gradually change from the state of concentric compression to the state of eccentric compression, and this state will also make the ultimate bearing capacity smaller; in this way, by detecting the deformation of the members and the framework, it is concerned whether the load and deformation are within the linear range. When entering the accelerated deformation, it indicates that it is approaching the bearing limit, and this limit value will vary due to different materials and different erection qualities. Without real-time monitoring, only the simple method of increasing the safety factor can be used, which causes a large amount of waste.

[0042] Preferably, in combination with the above scheme, as Figures 1 to 11 shown, in this embodiment, the detection device includes a pressure sensor and an inclination sensor 5; among them, the pressure sensors are respectively arranged at the top and bottom of the vertical pole 1 for detecting the load of the framework 10; further, the inclination sensors 5 are respectively arranged at the top, middle and bottom of the vertical pole 1 for detecting the inclination angle of the vertical pole 1; specifically, the pressure sensor is internally provided with a strain gauge, which converts the pressure load into an electrical signal output to obtain the load data.

[0043] Preferably, in combination with the above scheme, as Figures 1 to 11 shown, in this embodiment, both ends of the steel wire rope 3 are fixedly arranged inside the framework 10 through wire rope clips 8, and a wire rope tightener 9 is provided on the steel wire rope 3, so as to facilitate the adjustment of the tension of the steel wire rope 3, which is beneficial to detecting the inclination angle of the steel wire rope; further, the steel wire rope 3 needs to be an anti-twist steel wire rope, so that after fastening and after the deformation of the framework, the sensors on the steel wire rope will not rotate and cause data distortion.

[0044] Preferably, in combination with the above solution, as Figures 1 to 11 shown, in this embodiment, both ends of the steel wire rope 3 are respectively fixed on the cross bars 2 on the opposite sides inside the frame body 10 through wire rope clips 8; a positioning plate 6 is provided on the steel wire rope 3, and the inclination sensor 5 is fixed on the positioning plate 6 through bolts 7, and thus is fixed on the steel wire rope 3.

[0045] Preferably, in combination with the above solution, as Figures 1 to 11 shown, in this embodiment, both ends of the cross bar 2 are respectively buckled on the vertical pole 1 through right-angle fasteners 4; both ends of the right-angle fastener 4 are respectively sleeved on the vertical pole 1 and the cross bar 2, and both the cross bar and the vertical pole are steel pipes; by using the right-angle fastener 4 for fixing, the vertical pole and the cross bar can be connected more conveniently, and the installation is more convenient.

[0046] Preferably, in combination with the above solution, as Figures 1 to 11 shown, in this embodiment, the detection device includes an inclination sensor. When the frame body 10 is under the action of the force P, if the inclination sensor detects that the inclination angle of the frame body is a, then the displacement ΔL of the frame body 10 in the horizontal direction is:

[0047] △L = tan(90 - a) * H; where H is the height of the frame body; further, in the horizontal direction, the displacement ΔLx of the frame body in the transverse direction is:

[0048] △L X = tan(90 - a X ) * H; in the horizontal direction, the displacement ΔLy of the frame body in the transverse direction is:

[0049] △L y = tan(90 - a y ) * H.

[0050] By adopting the above solution, the two displacements of the frame body in the horizontal direction can be accurately calculated, so as to further analyze the deformation in each direction, which is beneficial to the deformation monitoring of the frame body.

[0051] Preferably, in combination with the above solution, as Figures 1 to 11 shown, the force monitoring device for a building construction frame body provided by the present invention further includes a control terminal, and the control terminal includes a data processing unit; the control terminal is communicatively connected with the detection device; the control terminal is used for receiving the inclination angle and load of the frame body monitored by the detection device, and calculating the displacement of the frame body in the horizontal direction.

[0052] Preferably, in combination with the above solution, as Figures 1 to 11 shown, the force monitoring device for a building construction frame body provided by the present invention further includes an alarm device, and the alarm device is communicatively connected with the control terminal. When the control terminal receives that the inclination angle or the calculated transverse displacement exceeds a preset value, the control terminal controls the alarm device to give an alarm; specifically, the alarm mode can be beeping or emitting an alarm by emitting red light, etc.

[0053] Preferably, as a detection example, in this embodiment, as shown in Table 1 and Table 2, four groups of sensors are installed on the frame of a cast-in-place beam of a bridge. Two pressure sensors, two member inclination sensors and one steel wire rope inclination sensor are installed in each group. The X direction is the cross-bridge section direction, positive to the left and negative to the right; the Y direction is the longitudinal bridge direction, positive forward and negative backward. Judging from the test data, the top one is the horizontal displacement of the frame calculated based on the data of the steel wire rope inclination sensor, and the frame displacement of the first measuring point. The following data are the data of the pressure sensors. The S-shaped deformation of the member is the angle in the X direction and the angle in the Y direction of the upper inclination; the middle inclination is the angle in the X direction and the angle in the Y direction. It can be seen that the load at the top of the frame is less than the load at the bottom, indicating that the cross bar transfers the nearby load to this vertical bar. The maximum deformation angle of the vertical bar is at the top, and the entire frame deflects and deforms along the section direction; Table 2 is a schematic diagram of the actual detection data of the monitoring device.

[0054] Table 1

[0055]

[0056] Table 2

[0057]

[0058]

[0059] By adopting the above technical solutions, through the real-time monitoring of the frame, the real-time data of the load during the concrete pouring of the frame can be collected. By collecting and analyzing the construction data of different concrete structures, the erection of the frame can be optimized to ensure the quality and safety of the pouring process, improve the construction efficiency, and can evaluate the erection quality of the frame and reduce the erection cost of the frame.

[0060] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present invention. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention all fall within the protection scope of this technical solution.

Claims

1. A force monitoring device for a building construction framework, characterized in that, It includes a frame body and a steel wire rope. The frame body is formed by connecting multiple vertical rods and multiple horizontal rods. The vertical rods are arranged vertically, and the horizontal rods are fixedly arranged horizontally on the vertical rods. Multiple groups of detection devices are arranged vertically on the vertical rods, respectively used to detect the load and inclination angle of the frame body. The detection device includes a pressure sensor and an inclination sensor. The pressure sensors are respectively arranged at the top and bottom of the vertical rod to detect the load of the frame body. The inclination sensors are respectively arranged at the top, middle and bottom of the vertical rod to detect the inclination angle of the vertical rod. The steel wire rope is fixedly arranged vertically in the frame body. An inclination sensor is arranged on the steel wire rope, and the inclination sensor on the steel wire rope is used to detect the inclination angle of the steel wire rope. If the inclination angle of the frame body detected by the inclination sensor is a, the horizontal displacement ΔL of the frame body is: ; where H is the height of the frame body. The steel wire rope is arranged vertically at the central position formed by four vertical rods. The four vertical rods are connected horizontally by crossbars. The upper end of the steel wire rope is fixedly connected to the crossbar at the top of the vertical rod, and the lower end of the steel wire rope is fixedly connected to the crossbar at the bottom of the vertical rod or directly fixed on the ground. Both ends of the steel wire rope are fixedly arranged in the frame body through wire rope clips. A wire rope tightener is arranged on the steel wire rope. The steel wire rope is an anti-twist wire rope. Both ends of the steel wire rope are fixedly arranged on the crossbar in the frame body through wire rope clips. A positioning plate is arranged on the steel wire rope, and the inclination sensor is fixed on the positioning plate by bolts.

2. The force monitoring device for a building construction framework according to claim 1, characterized in that, Both ends of the cross bar are respectively fastened to the vertical poles of the frame body by right-angle fasteners; both ends of the right-angle fasteners are respectively sleeved on the cross bar and the vertical poles; both the cross bar and the vertical poles are steel pipes.

3. The force monitoring device for a building construction framework according to claim 1, characterized in that, It further includes a control terminal, and the control terminal is communicatively connected with the detection device; the control terminal is used for receiving the inclination angle and load of the frame body monitored by the detection device, and calculating the displacement of the frame body in the horizontal direction.

4. The force monitoring device for a building construction framework according to claim 3, characterized in that, It further includes an alarm device, and the alarm device is communicatively connected with the control terminal. When the control terminal receives that the inclination angle or the calculated lateral displacement exceeds a preset value, the control terminal controls the alarm device to give an alarm.

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