A construction engineering template compression resistance testing device

Abstract

The utility model relates to the technical field of building engineering, concretely is a kind of building engineering template compression testing device, the utility model includes support base plate, and support base plate is provided with compacting positioning mechanism and edge pressurizing mechanism;Compact positioning mechanism includes compacting equipment support frame, compacting cylinder and compacting plate, and compacting equipment support frame is fixed to the side of support base plate, compacting cylinder is installed on compacting equipment support frame, and its telescopic end is connected compacting plate, for compacting fixed on building template bearing plate building engineering template, the utility model can concentrate load to template overhanging edge by the independent lower movement of edge pressurizing plate, directly simulates the stress concentration working condition caused by structure discontinuity in actual engineering, and this kind of testing mode effectively overcomes the defect that internal area shares load in traditional overall pressurizing test, so that the real carrying capacity of edge area can be accurately characterized.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically a test device for the compressive strength of building engineering formwork. Background Technology

[0002] The internal fiber or material structure of building formwork is continuous, which can evenly distribute the stress it bears. However, at the edge of the formwork, this continuity is forcibly interrupted by the physical boundary, causing the stress transmission path to be blocked at this point. This makes it a very fragile part of the entire formwork, which is prone to cracking, crushing or deformation in actual engineering. Therefore, it is necessary to conduct compressive strength tests on the edges of building formwork.

[0003] However, in existing technologies, a large pressure plate is often used to apply a uniform load to the entire template surface. While this method can assess the overall average strength of the template, it cannot simulate or detect early failure caused by stress concentration at the template edges under real working conditions. The overall pressure causes the robust internal areas to bear most of the load, thus "masking" the insufficient strength of the edge areas, resulting in test results that do not accurately reflect the actual load-bearing capacity of the template. Utility Model Content

[0004] The purpose of this invention is to provide a compressive strength testing device for building formwork to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A compressive strength testing device for building formwork includes a support base plate, on which a clamping and positioning mechanism and an edge pressing mechanism are provided;

[0007] The clamping and positioning mechanism includes a clamping equipment support frame, a clamping cylinder, and a clamping plate. The clamping equipment support frame is fixed to one side of the support base plate, and the clamping cylinder is installed on the clamping equipment support frame. Its telescopic end is connected to the clamping plate and is used to clamp and fix the building formwork located on the building formwork support plate.

[0008] The edge pressurization mechanism includes a pressurization equipment support frame, a pressurization cylinder, and an edge pressurization plate. The pressurization equipment support frame is fixed on the support base plate and adjacent to the pressing equipment support frame. The pressurization cylinder is installed on the pressurization equipment support frame, and its telescopic end is connected to the edge pressurization plate to apply pressure to the suspended edge of the formwork in the construction project.

[0009] Preferably, the support base plate is provided with a building formwork bearing plate and a lateral displacement mechanism, the lateral displacement mechanism being used to drive the building formwork bearing plate to move laterally on the support base plate.

[0010] Preferably, the lateral displacement mechanism includes at least one set of support rails, support slide plate, drive motor and drive screw;

[0011] The support guide rail is fixed to the top of the support base plate, and the support slide plate is fixedly connected to the building formwork support plate and slidably connected to the support guide rail.

[0012] The drive motor is fixed to one end of the support base plate, and its output end is connected to the drive screw, which is threadedly connected to the support slide plate.

[0013] Preferably, the cross-section of the support rail is trapezoidal, and the bottom of the support slide plate is provided with a matching trapezoidal groove.

[0014] Preferably, a support block is rotatably connected to the end of the drive screw, and the support block is fixed on the support base plate.

[0015] Preferably, it also includes a positioning assistance system, which includes LED spotlights and a light shield;

[0016] The LED spotlight is fixed on the support frame of the pressurizing equipment, and the light shield is fixed on the support base plate and located in the light path of the LED spotlight to form a clear strip of light to indicate the pressing position of the edge pressurizing plate.

[0017] The beneficial effects of this utility model are:

[0018] This invention applies concentrated loads to the suspended edges of the template by independently moving the edge pressure plate downwards, directly simulating stress concentration conditions caused by structural discontinuities in actual engineering. This testing method effectively overcomes the defect of the internal area sharing the load in the traditional overall pressure test, allowing the true bearing capacity of the edge area to be accurately characterized. At the same time, the clamping and positioning mechanism reliably fixes the non-test area of ​​the template through the clamping plate, ensuring the stability of the template body during the test and enabling the test load to be accurately applied to the edge area. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a utility model Figure 1 Side view of the central support substrate;

[0022] Figure 3 This is a utility model Figure 2 Schematic diagram of the middle edge pressure plate section;

[0023] Figure 4 This is a utility model Figure 1 Side view of the supporting substrate.

[0024] The attached figures are labeled as follows:

[0025] 1. Support base plate; 2. Building formwork support plate; 301. Support guide rail; 302. Support slide plate; 303. Drive motor; 304. Drive screw; 305. Support block; 401. Pressing equipment support frame; 402. Pressing cylinder; 403. Pressing plate; 501. Pressurizing equipment support frame; 502. Pressurizing cylinder; 503. Edge pressurizing plate; 6. LED spotlight; 7. Light shield. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] A formwork compression resistance testing device for building engineering includes a support base plate 1, which is fixed on a compression resistance testing platform. The support base plate 1 is provided with a formwork bearing plate 2, a lateral displacement mechanism, a pressing and positioning mechanism, and an edge pressing mechanism.

[0028] The formwork support plate 2 is a rectangular plate, which corresponds to the formwork design of building engineering and can provide support for the formwork of building engineering.

[0029] The lateral displacement mechanism is used to drive the building formwork support plate 2 to move. The lateral displacement mechanism includes two sets of parallel support rails 301. The support rails 301 are fixed to the top of the support base plate 1. The bottom of the building formwork support plate 2 is fixedly connected to a support slide plate 302. The cross-section of the support rails 301 is trapezoidal. The bottom of the support slide plate 302 has a trapezoidal groove so that the support rails 301 and the support slide plate 302 can be slidably connected. The support slide plate 302 can drive the building formwork support plate 2 to slide on the support rails 301.

[0030] The lateral displacement mechanism also includes a drive motor 303 fixed to one end of the support base plate 1. The drive motor 303 is a servo motor in the prior art, with an external power supply and a corresponding control switch externally. The output end of the drive motor 303 is fixedly connected to a drive screw 304, and the other end of the drive screw 304 is rotatably connected to a support block 305. The support block 305 is fixed to the top of the support base plate 1. The drive screw 304 and the support slide plate 302 are threadedly connected so that the rotation of the drive screw 304 drives the support slide plate 302 to move. The support slide plate 302 drives the building formwork support plate 2 and the building engineering formwork above it to move, so that the position of the building formwork support plate 2 can be finely adjusted according to the size of the building engineering formwork.

[0031] The clamping and positioning mechanism includes a clamping equipment support frame 401 fixed to one side of the support base plate 1. A clamping cylinder 402 is fixedly installed on the top of the clamping equipment support frame 401. A clamping plate 403 is fixedly connected to the telescopic end of the clamping cylinder 402. The clamping plate 403 is located above the building formwork support plate 2 and can clamp and fix the building formwork above the building formwork support plate 2.

[0032] The edge pressurizing mechanism includes a pressurizing device support frame 501 fixed to one side of the support base plate 1. The pressurizing device support frame 501 is located on one side of the pressing device support frame 401. A pressurizing cylinder 502 is fixedly installed on the top of the pressurizing device support frame 501, and an edge pressurizing plate 503 is fixedly connected to the bottom of the pressurizing cylinder 502.

[0033] Both the clamping cylinder 402 and the pressurizing cylinder 502 are existing technologies, equipped with a power source and a control switch, and the extension length is controlled by a preset stroke. The preset length corresponds to a fixed pressure value. When testing, there is no need to adjust the pressure intensity or retest the pressure intensity.

[0034] An LED spotlight 6 is fixedly connected to the pressure equipment support frame 501. A light shield 7 is fixedly connected to the support base plate 1 and located in the direction of the light from the LED spotlight 6. The LED spotlight 6 emits light to form a strip of light. The strip of light is directly below the edge pressure plate 503. The emitted light is eventually blocked by the light shield 7. The position of the light emitted by the LED spotlight 6 makes it easy to know the position of the edge pressure plate 503 when it is pressed down, so as to adjust the position of the construction formwork above the construction formwork support plate 2.

[0035] On the same side of the clamping and positioning mechanism and the edge pressing mechanism, there are also external penetration testing mechanisms, coating damage testing equipment and other testing equipment to conduct comprehensive testing of the building engineering formwork. These testing equipment are not related to the compressive strength test of the building engineering formwork, and will not be described in detail here.

[0036] The working principle of the formwork compressive strength testing device for building engineering provided by this utility model is as follows:

[0037] When it is necessary to conduct a compressive strength test on the formwork of the building project, the formwork is placed above the formwork support plate 2, and one side of the formwork is moved to the outside of the formwork support plate 2, so that one edge of the formwork is suspended in the air. The suspended side is located at the position where the light is emitted by the LED spotlight 6. At this time, the suspended edge of the formwork is located below the edge pressure plate 503.

[0038] Then, the pressing cylinder 402 extends, causing the pressing plate 403 to move down, pressing and fixing the construction template. The pressurizing cylinder 502 extends again, causing the edge pressing plate 503 to move down, pressing the edge of the construction template to conduct a compressive strength test. After the pressurization is completed, the pressing plate 403 and the edge pressing plate 503 are moved up to observe whether there is any damage on the surface of the construction template.

[0039] Compared with related technologies, the compressive strength testing device for building formwork provided by this utility model has the following advantages:

[0040] This invention applies concentrated loads to the suspended edges of the template by independently moving the edge pressure plate downwards, directly simulating stress concentration conditions caused by structural discontinuities in actual engineering. This testing method effectively overcomes the defect of the internal area sharing the load in the traditional overall pressure test, allowing the true bearing capacity of the edge area to be accurately characterized. At the same time, the clamping and positioning mechanism reliably fixes the non-test area of ​​the template through the clamping plate, ensuring the stability of the template body during the test and enabling the test load to be accurately applied to the edge area.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A compressive strength testing device for building formwork, comprising a supporting base plate (1), characterized in that, The support substrate (1) is provided with a pressing and positioning mechanism and an edge pressing mechanism; The clamping and positioning mechanism includes a clamping equipment support frame (401), a clamping cylinder (402), and a clamping plate (403). The clamping equipment support frame (401) is fixed to one side of the support base plate (1). The clamping cylinder (402) is installed on the clamping equipment support frame (401), and its telescopic end is connected to the clamping plate (403) for clamping and fixing the construction template located on the building template bearing plate (2). The edge pressurization mechanism includes a pressurization equipment support frame (501), a pressurization cylinder (502), and an edge pressurization plate (503). The pressurization equipment support frame (501) is fixed on the support base plate (1) and adjacent to the pressing equipment support frame (401). The pressurization cylinder (502) is installed on the pressurization equipment support frame (501), and its telescopic end is connected to the edge pressurization plate (503) for applying pressure to the suspended edge of the construction template.

2. A compressive strength testing device for building formwork according to claim 1, characterized in that, The support base plate (1) is provided with a building formwork bearing plate (2) and a lateral displacement mechanism. The lateral displacement mechanism is used to drive the building formwork bearing plate (2) to move laterally on the support base plate (1).

3. A compressive strength testing device for building formwork according to claim 2, characterized in that, The lateral displacement mechanism includes at least one set of support rails (301), support slide plate (302), drive motor (303) and drive screw (304). Among them, the support guide rail (301) is fixed to the top of the support base plate (1), the support slide plate (302) is fixedly connected to the building formwork bearing plate (2), and is slidably connected to the support guide rail (301); The drive motor (303) is fixed to one end of the support base plate (1), and its output end is connected to the drive screw (304). The drive screw (304) is threadedly connected to the support slide plate (302).

4. A compressive strength testing device for building formwork according to claim 3, characterized in that, The cross-section of the support rail (301) is trapezoidal, and the bottom of the support slide plate (302) is provided with a matching trapezoidal groove.

5. A compressive strength testing device for building formwork according to claim 3, characterized in that, The end of the drive screw (304) is rotatably connected to a support block (305), which is fixed on the support base plate (1).

6. A compressive strength testing device for building formwork according to claim 1, characterized in that, It also includes a positioning assistance system, which includes LED spotlights (6) and a light shield (7). The LED spotlight (6) is fixed on the pressure equipment support frame (501), and the light shield (7) is fixed on the support base plate (1) and located on the light path of the LED spotlight (6) to form a clear strip light spot to indicate the pressing position of the edge pressure plate (503).

Images