Engineering structure model test system under environmental load coupling effect
By designing an engineering structural model testing system that incorporates plant root systems and animal erosion simulation mechanisms, the problem of neglecting biological factors in existing technologies has been solved, enabling more comprehensive testing of structural performance and durability.
Patent Information
- Application Number
- CN202423113552.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing engineering structural designs lack consideration for biological factors, especially the impact of plant roots and animal erosion on structures, resulting in insufficient testing of structural durability and performance in complex environments.
An engineering structure model test system under environmental load coupling was designed, which includes a plant root simulation mechanism and an animal erosion simulation mechanism. By simulating the effects of plant root entanglement and animal rodent molarization, combined with a climate simulation mechanism, the system can detect the impact of biological and environmental factors on the structure.
The environmental load simulation has been expanded to more accurately detect the durability and performance of structures under biological influences, improving detection efficiency and the reliability of results.
Smart Images
Figure CN223624079U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of engineering structure model testing, specifically an engineering structure model testing system under environmental load coupling. Background Technology
[0002] In recent years, my country's civil engineering infrastructure has made great progress in both technological and scale development, with the completion of numerous large-span bridges and tunnels, such as the recently opened Hong Kong-Zhuhai-Macau Bridge and the under-construction Shenzhen-Zhongshan Bridge. These major civil engineering structures operate in complex environments, affected not only by vehicle loads during normal operation but also by environmental factors such as temperature, humidity, and chloride ion corrosion. Current engineering structural designs primarily consider structural performance under permanent loads, variable loads (such as vehicles), and accidental loads (such as earthquakes and typhoons), or mainly focus on structural durability under environmental factors. Traditional indoor testing studies have primarily concentrated on fatigue characteristics, durability, and multi-factor and multi-load coupling tests in complex environments, lacking consideration for biological factors, such as the compression caused by plant roots and termite corrosion. Summary of the Invention
[0003] To address the lack of consideration for biological factors in existing technologies for engineering structures, the purpose of this invention is to provide a test system for engineering structure models under environmental load coupling, capable of detecting the impact of biological factors on engineering structure models.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows: an engineering structure model test system under environmental load coupling, including a test chamber with an upper opening and a simulation component. The simulation component is equipped with a plant root simulation mechanism and an animal erosion simulation mechanism, and the plant root simulation mechanism and the animal erosion simulation mechanism can be selectively set on the test chamber.
[0005] The bottom of the test chamber is detachably connected to a model support frame, which is equipped with a sprayer.
[0006] The plant root system simulation mechanism includes a planting tray and a nutrient solution tank. The bottom of the planting tray is equipped with multiple support rods for detachable connection to the top of the test chamber. The bottom of the planting tray has a grid structure, and a support net is provided on the planting tray. Each side wall of the planting tray is connected with an insect-proof net. The bottom of the nutrient solution tank is detachably connected to the inner bottom of the test chamber.
[0007] The animal erosion simulation mechanism includes a first sealing cover, a constraint seat, and an electric grid. The first sealing cover is detachably connected to the top of the test chamber, the constraint seat is detachably connected to the bottom of the test chamber, and the constraint seat has a bracket opening for the model support frame to pass through. The electric grid is sleeved on the outside of the model support frame and is detachably installed on the constraint seat.
[0008] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention can simulate the influence of plant roots on engineering structure models through a plant root simulation mechanism or simulate the influence of animals on engineering structure models through an animal erosion simulation mechanism, thereby simulating the influence of biological actions on engineering structure models and expanding the scope of environmental effects; when simulating the influence of plant roots, plants are planted in planting trays, causing the roots of the plants to entwine the engineering structure model placed on the model support frame, thereby testing the tolerance of the engineering structure model to plant actions; when simulating animal effects, animals are placed inside an electric grid, thereby testing the influence of rodent molar action and insect corrosion on the engineering structure model, and the animals will retreat after being electrocuted by the electric grid, minimizing the animal's activity area, increasing the probability of interaction between the animal and the engineering structure model, and enabling faster presentation of the results of animal actions;
[0009] Furthermore, the simulation component is also equipped with a climate simulation mechanism, which includes a second closed cover. The bottom of the second closed cover is equipped with a sprayer, an illumination lamp, and a semiconductor cooling chip. The second closed cover is detachably connected to the top of the test chamber.
[0010] Furthermore, a mixing chamber is provided on the top of the second sealing cover, and a pH detector is installed inside the mixing chamber. The mixing chamber is connected to the sprayer.
[0011] Furthermore, both the bottom of the first and second closures are equipped with high-definition cameras.
[0012] Furthermore, the planting tray is equipped with a plant support frame for supporting the plants.
[0013] Furthermore, an ultrasonic flaw detector is installed on the model support frame.
[0014] Furthermore, both the sprayer and the ultrasonic flaw detector are embedded in the model support frame, and both the model support frame and the test chamber are made of corrosion-resistant metal.
[0015] Furthermore, the model support frame is equipped with a telescopic rod at the bottom, which is detachably connected to the bottom of the test chamber.
[0016] Furthermore, the number of power grids is set to be multiple, and the multiple power grids are of different sizes. The constraint seat is provided with multiple sets of fixing buckles that correspond one-to-one with the multiple power grids. The fixing buckles include multiple fixing buckles that are spaced apart. Each power grid can be selectively and detachably connected to the corresponding fixing buckle group. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the plant root simulation mechanism installed on the test chamber in the engineering structure model test system under environmental load coupling of this utility model.
[0018] Figure 2This is a schematic diagram of the animal erosion simulation mechanism installed on the test chamber in the engineering structure model test system under environmental load coupling of this utility model.
[0019] Figure 3 This is a schematic diagram of the climate simulation mechanism installed on the test chamber in the engineering structure model test system under environmental load coupling of this utility model.
[0020] In the diagram, 1-Experimental box, 2-Plant root simulation mechanism, 21-Planting tray, 22-Nutrient solution tank, 23-Supporting rod, 24-Supporting net, 25-Insect-proof net, 26-Support frame, 3-Animal erosion simulation mechanism, 31-First sealing cover, 32-Constraint seat, 33-Electric grid, 34-Fixing buckle, 4-Model support frame, 5-Sprayer, 6-Climate simulation mechanism, 61-Second sealing cover, 62-Sprayer, 63-Illumination lamp, 64-Semiconductor cooling chip, 65-Mixing box, 66-pH detector, 7-High-definition camera, 8-Ultrasonic flaw detector, 9-Telescopic rod. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the plant root simulation mechanism installed on the test chamber in the engineering structure model test system under environmental load coupling of this utility model. Figure 2This is a schematic diagram of the animal erosion simulation mechanism installed on the test chamber in the engineering structure model test system under environmental load coupling of this utility model. An engineering structure model test system under environmental load coupling includes a test chamber with an open top and a simulation component. The simulation component is equipped with a plant root simulation mechanism 2 and an animal erosion simulation mechanism 3, which can be selectively installed on the test chamber. A model support frame 4 is detachably connected to the bottom of the test chamber, and a sprayer 5 is provided on the model support frame 4. The plant root simulation mechanism 2 includes a planting tray 21 and a nutrient solution tank 22. The bottom of the planting tray 21 is provided with multiple support rods 23 for detachable connection to the top of the test chamber. The bottom of the planting tray 21 is a grid structure, and a support net 24 is provided on the planting tray 21. Each side wall of the planting tray 21 is connected to an insect-proof net 25. The bottom of the nutrient solution tank 22 is detachably connected to the inner bottom of the test chamber. The animal erosion simulation mechanism 3 includes a first sealing cover 31, a constraint seat 32, and an electric grid 33. The first sealing cover 31 is detachably connected to the top of the test chamber, and the constraint seat 32 is detachably connected to the inner bottom of the test chamber. The constraint seat 32 has a bracket opening for the model support frame 4 to pass through. The electric grid 33 is sleeved on the outside of the model support frame 4 and is detachably installed on the constraint seat 32.
[0027] This utility model's experimental system for engineering structure models under coupled environmental loads allows for simulation of the desired factors simply by installing either the plant root simulation mechanism 2 or the animal erosion simulation mechanism 3 on the test chamber. For example, to simulate the impact of plant roots on the engineering structure model, the plant root simulation mechanism 2 is installed; similarly, to simulate the impact of animal erosion, the animal erosion simulation mechanism 3 is installed. Thus, the plant root simulation mechanism 2 and the animal erosion simulation mechanism 3 simulate the effects of biological processes on the engineering structure model, expanding the scope of environmental impact simulations.
[0028] When conducting plant action simulation experiments, structural damage is usually caused by the entanglement and compression of plant roots or the expansion of roots within structural gaps, leading to cracking and structural destruction. Therefore, the focus is on simulating the role of plant roots. The user first assembles the nutrient solution tank 22 at the bottom of the experimental chamber, then adds nutrient solution to the tank 22 to provide the nutrients needed for plant growth. Next, the engineering structure model is placed on the model support frame 4, and then the plants are prepared. Seedlings of woody plants grown in tropical high-humidity regions can be selected. Tropical high-humidity regions have high water content, and plant roots typically grow quickly and robustly. The plants are placed on the support net 24, which has holes for the plant roots to pass through. If the plant roots are large, corresponding holes can be cut into the support net 24. Then, the support net 24 and the plant are placed on the planting tray 21. The plant roots pass through the pores of the grid structure at the bottom of the planting tray 21, and the ends of the roots are inserted into the nutrient solution tank 22 and wrapped around the engineering structure model, respectively. Soil is filled into the support net 24, and then water is sprayed onto the engineering structure model at regular intervals through the sprayer 5 to attract the plant roots to wrap around the engineering structure model, and the tolerance of the engineering structure model to the plant action is tested. In the plant root simulation mechanism 2, the support net 24 supports the soil and provides a living environment for the plant. The grid structure at the bottom of the planting tray 21 serves as a support for the plant. The support rod 23 leaves a gap between the planting tray 21 and the test box, allowing oxygen to enter for the plant roots to breathe. The insect net 25 can hang down to cover the gap between the planting tray 21 and the test box, reducing the probability of insects or animals entering, thereby reducing the interference of other factors on the experiment. After the plant treatment is completed, the plant roots are cut through the gap between the planting tray 21 and the test chamber. After the cutting is completed, the planting tray 21 is removed, the root system inside the test chamber is cleaned, the engineering structure model is taken out, and the experimental results are viewed.
[0029] In one embodiment, the planting tray 21 is provided with a plant support frame 26 for supporting the plant. After transplanting, plant roots are difficult to firmly grip the soil and are prone to tipping over. The support frame 26 can provide auxiliary support for the plant, reducing the probability of it tipping over.
[0030] When conducting animal action simulation experiments, animal actions include rodent molar action and insect-induced corrosion. A restraint seat 32 is installed inside the test chamber to reduce the damage caused by animal actions. An electric grid 33 is then installed on the restraint seat 32 to minimize the animal's activity area. The appropriate animal is placed into the electric grid 33, and a first sealing cover 31 is installed on top of the test chamber to seal it and prevent escape. During the simulation, the animal will retreat after being shocked by the electric grid 33, increasing the probability of interaction between the animal and the engineering structure model and allowing for a faster presentation of the impact of animal actions on the engineering structure model.
[0031] In one embodiment, multiple electric grids 33 are provided, each with a different size. The constraint seat 32 is equipped with multiple sets of fixing buckles, each corresponding to one of the multiple electric grids 33. Each fixing buckle includes multiple spaced fixing buckles 34. Each electric grid 33 can be selectively and detachably connected to its corresponding fixing buckle. The electric grid 33 can adjust its enclosure range according to the size of the engineering structure model, ensuring that the animal's activity area within the electric grid 33 is as small as possible. This increases the probability of interaction between the animal and the engineering structure model, and allows for faster presentation of the animal's actions.
[0032] To enhance the understanding of the impact of climate on changes in the engineering structure model, in one embodiment, the simulation component is further equipped with a climate simulation mechanism 6. The climate simulation mechanism 6 includes a second sealing cover 61, with a sprayer 62, an illumination lamp 63, and a thermoelectric cooler 64 located at the bottom of the second sealing cover 61. The second sealing cover 61 is detachably connected to the top of the test chamber. When a climate simulation experiment is required, the climate simulation mechanism 6 is installed on the test chamber, and the top of the test chamber is sealed by the second sealing cover 61. Then, the sprayer 62, illumination lamp 63, and thermoelectric cooler 64 simulate various climate conditions such as fog, sunshine, and icing, thereby detecting the impact of various climates on the engineering structure model. In one embodiment, the sprayer 62 is a U-Shock 112h, the illumination lamp 63 is a CQ-25M, and the thermoelectric cooler 64 is a TEC2-19008.
[0033] In one embodiment, a mixing chamber 65 is provided on top of the second sealing cover 61, and a pH detector 66 is installed inside the mixing chamber 65. The mixing chamber 65 is connected to the sprayer 62. During climate simulation, the user can mix solutions in the mixing chamber 65 to simulate the erosion process of the engineering structure model under alkaline, acidic, and salt solutions. The pH detector 66 facilitates the detection of the pH value of the mixed solution, allowing the user to better control the variables in each experiment. The connection between the sprayer 62 and the mixing chamber 65 allows the solution in the mixing chamber 65 to more evenly cover the engineering structure model.
[0034] To better observe the impact of animal action simulation experiments and climate simulation experiments on the engineering structure model, in one embodiment, both the first sealing cover 31 and the bottom of the second sealing cover are equipped with high-definition cameras 7. The high-definition cameras 7 can record the experimental process, allowing users to observe the gradual destruction of the engineering structure model during animal action simulation experiments and climate simulation experiments, and better locate vulnerable points. However, because plant roots in the plant root simulation experiment can easily obstruct the view and damage the high-definition cameras 7, high-definition cameras 7 are not installed on the plant root simulation mechanism 2. The high-definition cameras 7 can be of model DH-HAC-HFW1200M-I1.
[0035] To better observe the impact of various simulation experiments on the engineering structure model, in one embodiment, an ultrasonic flaw detector 8 is installed on the model support frame 4. The ultrasonic flaw detector 8 can detect gaps that are difficult to see with the human eye, allowing users to observe the minute cracks generated in the engineering structure model during the experiment in greater detail. The ultrasonic flaw detector 8 can be a MINI-5 model.
[0036] In one embodiment, both the sprayer 5 and the ultrasonic flaw detector 8 are embedded within the model support frame 4, and both the model support frame 4 and the test chamber are made of corrosion-resistant metal. During the experiment, the sprayer 5 and the ultrasonic flaw detector 8 are easily damaged. Embedding both the sprayer 5 and the ultrasonic flaw detector 8 within the model support frame 4 provides a degree of protection for them. The fact that both the model support frame 4 and the test chamber are made of corrosion-resistant metal reduces the degree of damage to these components during the experiment, thus extending the system's service life.
[0037] In one embodiment, the model support frame 4 is provided with a telescopic rod 9 at its bottom, which is detachably connected to the bottom of the test chamber. The telescopic rod 9 can adjust the height of the engineering structure model, allowing the user to adjust the engineering structure model to a position within the test chamber 1 where the experimental effect is most obvious, according to the size of the engineering structure model.
[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A test system for engineering structural models under coupled environmental loads, characterized in that, The test chamber includes an opening on the top and a simulation component. The simulation component is equipped with a plant root simulation mechanism and an animal erosion simulation mechanism, and the plant root simulation mechanism and the animal erosion simulation mechanism can be selectively mounted on the test chamber. The bottom of the test chamber is detachably connected to a model support frame, and a sprayer is provided on the model support frame; The plant root system simulation mechanism includes a planting tray and a nutrient solution tank. The bottom of the planting tray is provided with multiple support rods for detachable connection to the top of the test chamber. The bottom of the planting tray is a grid structure. The planting tray is provided with a support net. Each side wall of the planting tray is connected with an insect-proof net. The bottom of the nutrient solution tank is detachably connected to the inner bottom of the test chamber. The animal erosion simulation mechanism includes a first sealing cover, a constraint seat, and an electric grid. The first sealing cover is detachably connected to the top of the test chamber, the constraint seat is detachably connected to the bottom of the test chamber, and the constraint seat has a bracket opening for the model support frame to pass through. The electric grid is sleeved on the outside of the model support frame and is detachably installed on the constraint seat.
2. The engineering structure model test system under environmental load coupling as described in claim 1, characterized in that, The simulation component is also equipped with a climate simulation mechanism, which includes a second closed cover. The bottom of the second closed cover is provided with a sprayer, an illumination lamp and a semiconductor cooling chip. The second closed cover is detachably connected to the top of the test chamber.
3. The engineering structure model test system under environmental load coupling as described in claim 2, characterized in that, The second sealing cover has a mixing box on top, and a pH detector is installed inside the mixing box. The mixing box is connected to the sprayer.
4. The engineering structure model test system under environmental load coupling as described in claim 2, characterized in that, Both the bottom of the first sealing cover and the second sealing cover are equipped with high-definition cameras.
5. The engineering structure model test system under environmental load coupling as described in claim 1, characterized in that, The planting tray is equipped with a plant support frame for supporting the plants.
6. The engineering structure model test system under environmental load coupling as described in claim 1, characterized in that, An ultrasonic flaw detector is installed on the model support frame.
7. The engineering structure model test system under environmental load coupling as described in claim 6, characterized in that, Both the sprayer and the ultrasonic flaw detector are embedded in the model support frame, and both the model support frame and the test chamber are made of corrosion-resistant metal.
8. The engineering structure model test system under environmental load coupling as described in claim 1, characterized in that, The model support frame is equipped with a telescopic rod at the bottom, which is detachably connected to the bottom of the test chamber.
9. The engineering structure model test system under environmental load coupling as described in claim 1, characterized in that, The number of the electric grids is set to be multiple, and the multiple electric grids are of different sizes. The constraint seat is provided with multiple sets of fixing buckles that correspond one-to-one with the multiple electric grids. Each fixing buckle includes multiple fixing buckles that are spaced apart. Each electric grid can be selectively and detachably connected to the corresponding fixing buckle.