Measuring device for preventing eccentricity during axial force monitoring of steel support

Abstract

The utility model relates to the technical field of foundation pit engineering monitoring, in particular to a measuring device for preventing eccentricity of a steel support during axial force monitoring, which comprises the steel support, a pre-embedded steel plate, a support adjustable head, an axial force meter mounting rack and a measuring component, the pre-embedded steel plate is pre-embedded on a wall, the support adjustable head is fixedly connected with the steel support, and the axial force meter mounting rack is fixedly connected with the measuring component. The axial force meter installation frame is fixedly connected with the supporting movable head, the measuring assembly is installed on the axial force meter installation frame through a bolt, and a reinforcing base plate is arranged between the measuring assembly and the embedded steel plate, so that the problem that in the prior art, the axial force meter is eccentric in the installation process can be solved. Therefore, the technical problem that the real stress condition of the steel support cannot be reflected by observation data is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit engineering monitoring, in particular to a measuring device for preventing eccentricity from occurring during axial force monitoring of a steel support. Background Art

[0002] In the process of foundation pit engineering monitoring, steel support is an important part of the foundation pit support structure, and the support axial force is an important basis for evaluating the safety of the support structure and the entire foundation pit project. The axial force of the steel support should be monitored by an axial force meter or a surface stress meter, but the surface stress meter is easily disturbed by external environmental conditions, so the use of an axial force meter to monitor the axial force of the steel support can better reflect the actual stress state of the support.

[0003] The specific method is to select an axial force gauge with a suitable range according to the calculated value of the steel support force provided by the design, align the axial force gauge mounting frame with the end of the steel support and weld them firmly. After the welding temperature cools down, push the axial force gauge into the mounting frame and fix it with screws. The axial force gauge and the axis of the steel support are required to be in a straight line. However, the axial force gauge may be eccentric during the actual installation process, resulting in the observation data being unable to reflect the actual force condition of the steel support. Utility Model Content

[0004] The purpose of the utility model is to provide a measuring device for preventing eccentricity during axial force monitoring of steel supports, aiming to solve the technical problem in the prior art that eccentricity of the axial force meter may occur during installation, resulting in the observation data being unable to reflect the actual stress condition of the steel support.

[0005] To achieve the above-mentioned purpose, the utility model adopts a measuring device for preventing eccentricity during axial force monitoring of a steel support, comprising a steel support, an embedded steel plate, a support flexible head, an axial force meter mounting frame and a measuring component, wherein the embedded steel plate is embedded in the wall, the support flexible head is fixedly connected to the steel support and is located at one end of the steel support, the axial force meter mounting frame is fixedly connected to the support flexible head, the measuring component is mounted on the axial force meter mounting frame by bolts, and a reinforcing pad is provided between the measuring component and the embedded steel plate.

[0006] Wherein, the center of the axial force meter mounting frame and the center of the steel support are located on the same straight line.

[0007] Among them, the inner diameter of the axial force meter mounting frame is 302mm, and the outer wall of the axial force meter mounting frame is 3mm.

[0008] Wherein, the support movable head is welded to the steel support.

[0009] Wherein, the diameter of the measuring component is 300 mm, and the thickness of the measuring component is 140 mm.

[0010] The utility model discloses a measuring device for preventing eccentricity during axial force monitoring of a steel support. The measuring component is an axial force meter. The center of the axial force meter mounting frame is placed on the same straight line as the center of the steel support and then welded to the support movable head. According to the calculated value of the force on the steel support, a measuring component with a suitable range is selected. After the welding temperature is cooled, the measuring component is pushed into the axial force meter mounting frame and fixed with bolts. After the installation is completed, initial data is collected before the prestress is applied to the steel support. In this way, the technical problem that the axial force meter eccentricity occurs during the installation process in the prior art, resulting in the observation data being unable to reflect the actual force condition of the steel support, can be solved.

[0011] The utility model adjusts the diameter of the measuring component to 300 mm and the thickness to 140 mm, and the contact surface with the steel support is approximately three times the original, which greatly increases the contact surface and can effectively prevent eccentricity, thereby having the following beneficial effects: 1. Easy installation; 2. By increasing the contact surface between the measuring component and the steel support, eccentricity can be effectively prevented, thereby improving the accuracy of the steel support axial force monitoring data. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of a measuring device for preventing eccentricity when monitoring the axial force of a steel support according to the utility model.

[0014] 1-Steel support, 2-Embedded steel plate, 3-Supporting joint, 4-Axis force gauge mounting frame, 5-Measuring assembly, 6-Reinforcement pad. DETAILED DESCRIPTION

[0015] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0016] See also Figure 1 , Figure 1 It is a structural schematic diagram of a measuring device for preventing eccentricity when monitoring the axial force of a steel support according to the utility model.

[0017] The utility model provides a measuring device for preventing eccentricity during axial force monitoring of a steel support, comprising a steel support 1, an embedded steel plate 2, a support flexible head 3, an axial force meter mounting frame 4 and a measuring component 5, wherein the embedded steel plate 2 is embedded in a wall, the support flexible head 3 is fixedly connected to the steel support 1 and is located at one end of the steel support 1, the axial force meter mounting frame 4 is fixedly connected to the support flexible head 3, the measuring component 5 is mounted on the axial force meter mounting frame 4 by bolts, and a reinforcing pad 6 is provided between the measuring component 5 and the embedded steel plate 2;

[0018] The center of the axial force meter mounting frame 4 and the center of the steel support 1 are located on the same straight line;

[0019] The inner diameter of the axial force meter mounting frame 4 is 302 mm, and the outer wall of the axial force meter mounting frame 4 is 3 mm;

[0020] The support joint 3 is welded to the steel support 1;

[0021] The diameter of the measuring component 5 is 300 mm, and the thickness of the measuring component 5 is 140 mm.

[0022] A measuring device for preventing eccentricity during axial force monitoring of a steel support is used in the present embodiment. The measuring component 5 is an axial force meter. The center of the axial force meter mounting frame 4 is located on the same straight line as the center of the steel support 1 and then welded to the support movable head 3. According to the calculated force value of the steel support 1, a measuring component 5 with a suitable range is selected. After the welding temperature cools down, the measuring component 5 is pushed into the axial force meter mounting frame 4 and fixed with bolts. After the installation is completed, the initial data is collected before the prestress is applied to the steel support 1. In this way, the technical problem that the axial force meter will be eccentric during the installation process in the prior art, resulting in the observation data not being able to reflect the actual force condition of the steel support 1, can be solved.

[0023] The utility model adjusts the diameter of the measuring component 5 to 300 mm and the thickness to 140 mm, and the contact surface with the steel support 1 is approximately three times the original, which greatly increases the contact surface and can effectively prevent eccentricity, thereby having the following beneficial effects: 1. Easy installation; 2. By increasing the contact surface between the measuring component 5 and the steel support 1, eccentricity can be effectively prevented, thereby improving the accuracy of the steel support axial force monitoring data.

[0024] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A measuring device for preventing eccentricity when monitoring the axial force of a steel support, characterized in that: It includes a steel support, an embedded steel plate, a support flexible head, an axial force meter mounting frame and a measuring component. The embedded steel plate is embedded in the wall. The support flexible head is fixedly connected to the steel support and is located at one end of the steel support. The axial force meter mounting frame is fixedly connected to the support flexible head. The measuring component is installed on the axial force meter mounting frame by bolts. A reinforcing pad is provided between the measuring component and the embedded steel plate.

2. The measuring device for preventing eccentricity when monitoring the axial force of a steel support according to claim 1, characterized in that: The center of the axial force meter mounting bracket and the center of the steel support are located on the same straight line.

3. The measuring device for preventing eccentricity when monitoring the axial force of a steel support according to claim 2, characterized in that: The inner diameter of the axial force meter mounting frame is 302 mm, and the outer wall of the axial force meter mounting frame is 3 mm.

4. The measuring device for preventing eccentricity when monitoring the axial force of a steel support according to claim 3, characterized in that: The support joint is welded to the steel support.

5. The measuring device for preventing eccentricity when monitoring the axial force of a steel support according to claim 4, characterized in that: The diameter of the measuring component is 300 mm, and the thickness of the measuring component is 140 mm.

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