Monitoring device for deformation of low-carbon self-compacting concrete

Abstract

The utility model provides a low-carbon self-compacting concrete deformation monitoring device, which comprises a supporting base plate, a working table, a concrete block supporting table, a positioning support plate, an extension table, a pressing push rod, a pressing seat, a detection structure and a concrete block, and is characterized in that the working table is fixedly arranged on the surface of the supporting base plate, and the concrete block supporting table is fixedly arranged on the surface of the working table; the positioning supporting plate is fixedly mounted at the top of the concrete block supporting table; the extending tables are fixedly installed at the two ends of the workbench, the downward pressing push rods are fixedly installed on the surfaces of the extending tables, and the downward pressing bases are fixedly installed on the downward pressing push rods. The detection structure is fixedly mounted on the extension table, and the concrete block is placed on the positioning supporting plate; due to the arrangement of the workbench and the detection structure, three-point testing and four-point testing can be carried out at the same time, data generated by testing can be collected in time, and concrete blocks can be stably placed.

Description

Technical Field

[0001] This utility model relates to the field of concrete technology, and in particular to a monitoring device for the deformation of low-carbon self-compacting concrete. Background Technology

[0002] Self-compacting concrete, as a high-performance concrete, has been widely used in civil engineering due to its excellent fluidity and self-compacting properties. It can flow under its own weight and fully fill the formwork without mechanical vibration, making it particularly suitable for complex structures, densely reinforced areas, and parts of the project that are difficult to vibrate. However, with the increasing demands for sustainable development and low-carbon environmental protection in the construction industry, the high cement consumption and carbon emissions of traditional self-compacting concrete have become increasingly prominent. Therefore, the development of low-carbon self-compacting concrete has become a current research hotspot.

[0003] Low-carbon self-compacting concrete (LCPC) significantly reduces carbon emissions and energy consumption by decreasing cement usage, increasing mineral admixtures, and optimizing mix design. However, the mechanical properties and deformation characteristics of LPC differ from those of traditional concrete, particularly its crack resistance and deformation behavior under flexural loads, which require further investigation. Therefore, developing a device capable of real-time monitoring of concrete deformation and crack development is crucial for accurately assessing its performance.

[0004] However, existing equipment is mostly designed for ordinary concrete and lacks monitoring devices specifically for low-carbon self-compacting concrete, especially in terms of monitoring deformation and crack development under bending loads.

[0005] Therefore, it is essential to invent a monitoring device for the deformation of low-carbon self-compacting concrete. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a monitoring device for the deformation of low-carbon self-compacting concrete. This solves the problems of existing concrete deformation monitoring devices, such as the inability to simultaneously perform three-point and four-point tests, the inability to collect test data in a timely manner, and the inability to stably place concrete blocks. The monitoring device for the deformation of low-carbon self-compacting concrete includes a support base plate, a worktable, a concrete block support platform, a positioning tray, an extension platform, a pressing push rod, a pressing seat, a detection structure, and a concrete block. The worktable is fixedly mounted on the surface of the support base plate, and the concrete block support platform is fixedly mounted on the surface of the worktable. The positioning tray is fixedly mounted on the top of the concrete block support platform. The extension platform is fixedly mounted at both ends of the worktable, and the pressing push rod is fixedly mounted on the surface of the extension platform. The pressing seat is fixedly mounted on the pressing push rod. The detection structure is fixedly mounted on the extension platform, and the concrete block is placed on the positioning tray.

[0007] The workbench includes a central support, an extension support, a three-point test push rod, a four-point test push rod, and a contact plate. The central support is fixedly installed on the surface of the supporting base plate, and the extension support is fixedly installed at both ends of the central support. The three-point test push rod is fixedly installed on the central support, and the four-point test push rod is fixedly installed on the two sets of extension supports. The contact plate is fixedly installed on the top of the three-point test push rod and the four-point test push rod and contacts the bottom surface of the concrete block.

[0008] The detection structure includes a support frame, a support plate, distributed sensors, a controller, and a crack camera. The support frame is fixedly mounted on an extension platform, and the support plate is fixedly mounted on the top of the support frame. The distributed sensors and the crack camera are fixedly mounted on the bottom surface of the support plate, and the controller is fixedly mounted on the surface of the support plate.

[0009] The intermediate support and extension support inside the workbench together form a long strip of steel metal support structure, with the intermediate support located at the very center. The three-point test push rod above the intermediate support is used in the three-point bending test to apply a concentrated load to the middle of the concrete block; the four-point test push rod is used in the four-point bending test to apply a load to two symmetrical positions on the concrete block.

[0010] The distributed sensors inside the detection structure employ several sets of fiber optic sensors, and these distributed sensors can cover the entire concrete block. The crack camera employs several sets of high-definition monitoring cameras; the crack camera can cover the entire concrete block.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The workbench of this utility model is mainly used for inspecting concrete blocks, applying loads, and transferring loads, while also providing the functions of three-point bending tests and four-point bending tests. The intermediate support and three-point test push rod are used for the three-point bending test, applying a concentrated load to the center of the concrete block; the extended support and four-point test push rod are used for the four-point bending test, applying loads at two symmetrical positions on the concrete block. The contact plate ensures uniform load transfer and avoids localized stress concentration. The workbench adopts a steel metal support structure to ensure the stability and rigidity of the device under load, providing reliable support for testing the bending performance and deformation characteristics of concrete blocks.

[0013] 2. The detection structure of this utility model is used to monitor the strain distribution and crack development of concrete blocks under load in real time. Distributed sensors monitor the strain distribution of the concrete block in real time and record deformation data; crack cameras capture the initiation, propagation, and distribution of cracks, providing intuitive images; the controller integrates data acquisition and processing functions to generate load-strain curves and crack distribution maps. Support frames and support plates ensure the stability of the detection equipment. Through high-precision monitoring and data feedback, the detection structure provides a scientific basis for evaluating the mechanical properties of concrete blocks and is an indispensable and important component of the device.

[0014] 3. This utility model discloses a monitoring device for the deformation of low-carbon self-compacting concrete. By integrating load application, strain monitoring, and crack capture functions, it achieves comprehensive monitoring of the deformation and crack development of concrete blocks under load. Its core functions include: evaluating the flexural strength and deformation capacity of concrete blocks through three-point bending tests and four-point bending tests; monitoring strain distribution in real time using distributed sensors and recording load-strain curves; and capturing the initiation, propagation, and distribution of cracks using a crack camera. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the workbench of this utility model.

[0017] Figure 3 This is a schematic diagram of the detection structure of this utility model.

[0018] In the picture:

[0019] Support base plate 1, workbench 2, intermediate support 21, extension support 22, three-point test push rod 23, four-point test push rod 24, contact plate 25, concrete block support platform 3, positioning tray 4, extension platform 5, pressing push rod 6, pressing seat 7, detection structure 8, support frame 81, support plate 82, distributed sensor 83, controller 84, crack camera 85, concrete block 9. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0021] As attached Figure 1 To be continued Figure 3As shown.

[0022] This utility model provides a monitoring device for deformation of low-carbon self-compacting concrete, comprising a support base plate 1, a workbench 2, a concrete block support platform 3, a positioning tray 4, an extension platform 5, a pressing push rod 6, a pressing seat 7, a detection structure 8, and a concrete block 9. The workbench 2 is fixedly installed on the surface of the support base plate 1, and the concrete block support platform 3 is fixedly installed on the surface of the workbench 2. The positioning tray 4 is fixedly installed on the top of the concrete block support platform 3. The extension platform 5 is fixedly installed at both ends of the workbench 2, and the pressing push rod 6 is fixedly installed on the surface of the extension platform 5. The pressing seat 7 is fixedly installed on the pressing push rod 6. The detection structure 8 is fixedly installed on the extension platform 5, and the concrete block 9 is placed on the positioning tray 4.

[0023] The workbench 2 includes a central support 21, an extension support 22, a three-point test push rod 23, a four-point test push rod 24, and a contact plate 25. The central support 21 is fixedly installed on the surface of the support base plate 1, and the extension support 22 is fixedly installed at both ends of the central support 21. The three-point test push rod 23 is fixedly installed on the central support 21, and the four-point test push rod 24 is fixedly installed on the two sets of extension supports 22. The contact plate 25 is fixedly installed on the top of the three-point test push rod 23 and the four-point test push rod 24, and contacts the bottom surface of the concrete block 9.

[0024] The detection structure 8 includes a support frame 81, a support plate 82, a distributed sensor 83, a controller 84, and a crack camera 85. The support frame 81 is fixedly mounted on the extension stage 5, and the support plate 82 is fixedly mounted on the top of the support frame 81. The distributed sensor 83 and the crack camera 85 are fixedly mounted on the bottom surface of the support plate 82, and the controller 84 is fixedly mounted on the surface of the support plate 82.

[0025] The intermediate support 21 and the extension support 22 inside the workbench 2 together form a long strip of steel metal support structure, and the intermediate support 21 is located in the center. The three-point test push rod 23 above the intermediate support 21 is used in the three-point bending test to apply a concentrated load to the middle of the concrete block 9; the four-point test push rod 24 is used in the four-point bending test to apply a load to two symmetrical positions of the concrete block 9.

[0026] The distributed sensor 83 inside the detection structure 8 uses several sets of fiber optic sensors, and the distributed sensor 83 can cover the entire concrete block 9. The crack camera 85 uses several sets of high-definition monitoring cameras; the crack camera 85 can cover the entire concrete block 9.

[0027] This device applies load to the concrete block 9 by driving the three-point test pusher 23 or the four-point test pusher 24 through the downward pusher 6, simulating concentrated stress or uniform bending moment conditions in actual engineering. Distributed sensors 83 monitor the strain distribution of the concrete block 9 in real time and record the load-strain curve. A crack camera 85 captures the initiation, propagation, and distribution of cracks. The controller 84 integrates data acquisition and processing functions to generate analysis results such as load-strain curves and crack distribution maps. Through high-precision monitoring and data analysis, the device comprehensively evaluates the mechanical properties and crack development patterns of low-carbon self-compacting concrete, providing a scientific basis for materials research, engineering testing, and optimized design.

[0028] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A device for monitoring deformation of low carbon self-compacting concrete, characterized by: The utility model provides a kind of concrete block testing device, including support base plate (1), workbench (2), concrete block support platform (3), positioning support plate (4), extension platform (5), push rod (6), pressing seat (7), detection structure (8) and concrete block (9), wherein: workbench (2) is fixedly installed on the surface of support base plate (1), and concrete block support platform (3) is fixedly installed on the surface of workbench (2), and the positioning support plate (4) is fixedly installed on the top of concrete block support platform (3);Extension platform (5) is fixedly installed on the both ends of workbench (2), and push rod (6) is fixedly installed on the surface of extension platform (5), and pressing seat (7) is fixedly installed on push rod (6);Detection structure (8) is fixedly installed on extension platform (5), and concrete block (9) is placed on positioning support plate (4).

2. The apparatus for monitoring deformation of low carbon self-compacting concrete according to claim 1, wherein: The workbench (2) includes middle support (21), expansion support (22), three-point test push rod (23), four-point test push rod (24) and contact plate (25), and the middle support (21) is fixedly installed on the surface of the support base plate (1), and the expansion support (22) is fixedly installed on the both ends of the middle support (21);The three-point test push rod (23) is fixedly installed on the middle support (21), and the four-point test push rod (24) is fixedly installed on the two groups of expansion supports (22), and the contact plate (25) is fixedly installed on the top of the three-point test push rod (23) and the four-point test push rod (24), and is in contact with the bottom surface of the concrete block (9).

3. The apparatus for monitoring deformation of low carbon self-compacting concrete according to claim 1, wherein: The detection structure (8) includes support frame (81), support plate (82), distributed sensor (83), controller (84) and crack camera (85), and the support frame (81) is fixedly installed on the extension platform (5), and the support plate (82) is fixedly installed on the top of the support frame (81);The distributed sensor (83) and the crack camera (85) are fixedly installed on the bottom surface of the support plate (82), and the controller (84) is fixedly installed on the surface of the support plate (82).

4. The apparatus for monitoring deformation of low carbon self-compacting concrete according to claim 2, wherein: The middle support (21) and the expansion support (22) inside the workbench (2) jointly form a long strip-shaped steel metal support structure, and the middle support (21) is located at the center, and the three-point test push rod (23) above the middle support (21) is used in the three-point bending test and applies concentrated load in the middle of the concrete block (9);The four-point test push rod (24) is used in the four-point bending test and applies load at two symmetrical positions of the concrete block (9).

5. The apparatus for monitoring deformation of low carbon self-compacting concrete according to claim 3, wherein: The distributed sensor (83) inside the detection structure (8) adopts a plurality of groups of optical fiber sensors, and the distributed sensor (83) can cover the entire concrete block (9), and the crack camera (85) adopts a plurality of groups of high-definition monitoring cameras;The crack camera (85) can cover the entire concrete block (9).

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