A mechanical properties testing system for prefabricated plate components

Abstract

The invention discloses a mechanical property testing system for a prefabricated plate component, comprising a pressing mechanism, which applies vertical downward pressure to a rectangular plate component by hydraulic pressure; a translation bearing mechanism, which is arranged below the pressing mechanism and has a horizontal translation freedom that moves out directly below the pressing mechanism; the translation bearing mechanism also has a roller support and a hemispherical support that contact the lower surface of the plate component, the roller support forms a line contact with the plate component, the hemispherical support forms a point contact with the plate component, the roller support comprises a first roller support and a second roller support, the first roller support and the second roller support respectively contact a pair of diagonal parts of the plate component, the axes of the first roller support and the second roller support are perpendicular to each other, and the other pair of diagonal parts of the plate component are each in contact with a hemispherical support; a pressure transmission component, which is arranged between the pressing mechanism and the plate component. The invention is used to perform a pressing test on the plate component with high efficiency, and is convenient for fine adjustment of horizontal translation or rotation of the plate component.

Description

Technical Field

[0001] The invention relates to the field of building detection instruments, and in particular to a prefabricated plate component mechanical property detection system. Background Art

[0002] The advantages of prefabricated buildings, such as fast construction speed and low production cost, are rapidly spreading around the world. Since 2013, my country has successively issued a series of policies on prefabricated buildings to vigorously promote the development of prefabricated buildings. For example, during the development of newly purchased commercial and residential land, the building assembly rate should meet certain requirements.

[0003] Reinforced concrete prefabricated buildings are currently the most widely used prefabricated building structure system in my country. With the rapid development of reinforced concrete prefabricated buildings in recent years, the quality control of reinforced concrete prefabricated components has become increasingly important, especially the requirements for the mechanical properties testing of prefabricated reinforced concrete prefabricated components are also constantly improving. The traditional on-site real-load testing method for reinforced concrete prefabricated components is to use counterweights, but manual loading is slow and inefficient, and there are major safety hazards. It can no longer meet the growing requirements for the testing of reinforced concrete prefabricated components. A more convenient testing equipment is needed. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a prefabricated plate component mechanical property detection system, which has efficient operation and accurate experimental data during the downward pressure test of the plate component, and is convenient for fine adjustment of horizontal translation or rotation of the plate component.

[0005] In order to solve the above problems, the present invention provides a prefabricated plate component mechanical properties detection system. In order to achieve the above purpose, the technical solution adopted by the present invention to solve its technical problems is:

[0006] A prefabricated plate component mechanical property detection system includes: a downward pressing mechanism, which uses hydraulic pressure to apply vertical downward pressure to a rectangular plate component; a translational load-bearing mechanism, which is arranged below the downward pressing mechanism and has the horizontal translation freedom to move out from directly below the downward pressing mechanism; the translational load-bearing mechanism also has a roller support and a hemispherical support that contact the lower surface of the plate component, the roller support and the plate component form a line contact, and the hemispherical support and the plate component form a point contact, the roller support includes a first roller support and a second roller support, the first roller support and the second roller support are respectively in contact with a pair of diagonal parts of the plate component, the axes of the first roller support and the second roller support are perpendicular to each other, and the other pair of diagonal parts of the plate component are each in contact with a hemispherical support, and the tops of the first roller support, the second roller support and the hemispherical support are at the same horizontal height; a pressure transmission component, which is arranged between the downward pressing mechanism and the plate component.

[0007] The beneficial effect of adopting the above technical solution is that, unlike the traditional manual weighing and stacking of counterweight blocks, the method of pressurizing by the hydraulic press saves labor and eliminates the safety hazards of manually stacking counterweight blocks.

[0008] When the translation load-bearing mechanism slides to one side, there is no obstruction above. At this time, in order to have a hoisting path space, the plate component is hoisted and placed on the translation frame; when the translation load-bearing mechanism moves to the other side, the loading device applies a load directly above the plate component, which is convenient for applying vertical pressure to conduct the test. This technical solution solves this problem by remotely controlling the translation frame, making the replacement of the plate component convenient and quick, greatly improving work efficiency.

[0009] At the same time, because the horizontal area of ​​the plate component is relatively large, in order to save costs, the hydraulic pressure is generally at one point and downward. If only the middle of the plate component is pressed downward, the local pressure is too large, and the test data is not accurate. The pressure transmission component plays the role of transmitting and dispersing the pressure, playing the role of pressing the plate component downward as a whole, and improving the accuracy of the test.

[0010] The two roller supports and two hemispherical supports form four-way contact with the plate component, realizing stable support for the plate component. At the same time, the roller supports, hemispherical supports and the plate component are in line contact and point contact respectively. Compared with point contact at all four places, the contact area is relatively large, the local stress on the bottom of the plate component is small, and the plate component is not easy to be damaged; compared with line contact and surface contact, the existence of two point contacts makes the friction resistance received by the plate component during horizontal translation or rotation consistent and small. In addition, the roller supports also play the function of guiding the horizontal fine-tuning direction of the plate component. Ensure the accuracy of controlling the supporting position and facilitate the fine-tuning of the translation plate component before the downward pressure test. The two roller supports and two hemispherical supports are arranged diagonally, so that the rotation center of the plate component basically coincides with the centroid when the horizontal rotation is fine-tuned. The mutually perpendicular axis directions of the two roller supports just determine that the plate component can be subjected to better rolling friction when fine-tuning in the two vertical and horizontal directions, and the fine-tuning resistance in these two directions is small.

[0011] As a further improvement of the present invention, the pressure transmission component includes a first horizontal square tube, each of the two ends of the first horizontal square tube is vertically contacted with a second horizontal square tube, each of the two ends of the second horizontal square tube is provided with a third horizontal square tube, the length directions of the second horizontal square tube and the third horizontal square tube are parallel to each other, each of the two ends of the third horizontal square tube is provided with a pad, and the lower surface of the pad is in contact with the upper surface of the plate component.

[0012] The beneficial effect of adopting the above technical solution is that a plurality of square tubes form an integrated pressure transmission component, the overall structure is strong, and the contact area with the plate is increased, and the hydraulic pressure at one place is dispersed to the surrounding areas. It is equivalent to a sturdy, special and easy-to-use auxiliary tooling.

[0013] As a further improvement of the present invention, the first horizontal square tube is welded integrally with the second horizontal square tube, the second horizontal square tube is in contact with the third horizontal square tube through a horizontal roller, the axial direction of the roller itself is perpendicular to the length direction of the second horizontal square tube, the first horizontal square tube, the second horizontal square tube, the third horizontal square tube and the roller are made of steel, and the material of the pad is plastic.

[0014] The beneficial effect of adopting the above technical solution is that the roller 53 can provide rolling friction, which is convenient for fine-tuning the local position of the plate component directly below the upward and downward pressing mechanism in a certain direction. The steel structure has high strength, and the plastic pad can relatively provide a certain elastic buffer to prevent local stress damage to the plate component.

[0015] As a further improvement of the present invention, the first roller support, the second roller support and the hemispherical support are made of steel, the hemispherical support has the rotational freedom of three coordinate axes around its own spherical center, and the side of the plate component is parallel to the axis direction of the first roller support and the second roller support.

[0016] The beneficial effects of adopting the above technical solution are: the steel structure has high strength and can withstand large downward pressure, the hemispherical support has low rotational friction and only plays a supporting role for the plate member, and the friction resistance of the plate member when fine-tuning its position on it is low. The length direction of the first roller support and the second roller support determines that the resistance of the plate member is the lowest when moving in the horizontal and vertical directions, which is convenient for fine-tuning in this direction.

[0017] As a further improvement of the present invention, the translation load-bearing mechanism includes a horizontal translation frame, the first roller support, the second roller support, and the hemispherical support are fixed to the translation frame through a pad column, the pad column is assembled to the translation frame through bolts, and the translation frame has a plurality of through holes for bolt assembly.

[0018] The beneficial effects of adopting the above technical solution are: a large number of through holes facilitates selective adjustment of the horizontal spacing of the roller bearing and the hemispherical bearing to adapt to plate components of different sizes. The pad column raises the height of the plate component to reduce the stroke of the pressing mechanism.

[0019] As a further improvement of the present invention, the two ends of the translation frame are respectively provided with a power wheel group and a driven wheel group, which are respectively in contact with a first slide rail and a second slide rail which are horizontal and parallel to each other, and the height of the first slide rail is lower than that of the second slide rail.

[0020] The beneficial effect of adopting the above technical solution is that the power wheel group provides the translational force of the translation frame, and the first slide rail and the second slide rail play the role of limiting guidance.

[0021] As a further improvement of the present invention, the pressing mechanism includes a hydraulic press fixed on the gantry frame, the gantry frame includes a top crossbeam and vertical columns vertically connected to each other, the hydraulic press is fixed to the crossbeam, a bottom plate is fixed to the bottom of the vertical column, and the gantry frame is also provided with a bottom frame for fixing the second slide rail.

[0022] The beneficial effect of adopting the above technical solution is that the first slide rail also provides friction resistance, and the second slide rail is more used to bear the downward force during the downward pressure test of the downward pressure mechanism to prevent the power wheel set and the driven wheel from being damaged by heavy pressure.

[0023] As a further improvement of the present invention, the gantry frame also has a plurality of oblique beams, the vertical spatial plane where the center lines of the oblique beams are located is parallel to the length directions of the first slide rail and the second slide rail, and the bottoms of the vertical columns and the oblique beams are fixed to the base plate through foot seats.

[0024] The beneficial effect of adopting the above technical solution is that the oblique beams and the foot seats improve the overall structural strength and stability of the gantry frame.

[0025] As a further improvement of the present invention, the hydraulic press is a servo hydraulic press, and a load sensor in contact with the pressure transmission component is provided at the bottom of the hydraulic press.

[0026] The beneficial effects of adopting the above technical solution are: the servo hydraulic press can be controlled more accurately, and it is convenient to control the output stroke and force, and the load sensor can also display data in real time.

[0027] As a further improvement of the present invention, a lifting hook with the freedom of translation along the length direction of the top cross beam is provided on the top cross beam; the power wheel group and the hydraulic press are both controlled by a control system, and the control system includes a control box and a hydraulic oil source arranged on one side of the bottom plate.

[0028] The beneficial effects of adopting the above technical solution are: this technical solution adopts a high-precision hydraulic servo loading system, edits the mechanical performance test program of the assembled reinforced concrete prefabricated plate components in the control system, and applies the target load to the plate components step by step through the microcomputer-controlled hydraulic press, so that the whole process from loading to unloading is automated, which improves the loading accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 is a perspective view of an embodiment of the present invention;

[0031] Figure 2 It is a partial enlarged view of point A of one embodiment of the present invention;

[0032] Figure 3 is a perspective view of an embodiment of the present invention;

[0033] Figure 4 is a perspective view of an embodiment of the present invention;

[0034] Figure 5 It is a partial enlarged view of point B of an embodiment of the present invention.

[0035] 1-gantry frame; 11-bottom frame; 12-top crossbeam; 13-vertical column; 14-foot seat; 15-diagonal beam; 16-lifting hook; 2-translation frame; 21-heightening column; 22-first roller support; 23-second roller support; 24-power wheel group; 25-driven wheel group; 26-sliding plate; 27-hemispherical support; 28-through hole; 3-bottom limit mechanism; 31-bottom plate; 32-first slide rail; 33-second slide rail; 4-hydraulic press; 41-load sensor; 5-pressure transmission component; 51-first horizontal square tube; 52-second horizontal square tube; 53-roller; 54-third horizontal square tube; 55-pad; 6-control system; 61-electric control box; 62-hydraulic oil source; 7-plate component. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with specific embodiments:

[0037] In order to achieve the purpose of the present invention, a prefabricated plate member mechanical property detection system includes: a pressing mechanism, which uses hydraulic pressure to apply vertical downward pressure to a rectangular plate member 7; a translational load-bearing mechanism, which is arranged below the pressing mechanism and has a horizontal translational freedom to move out from directly below the pressing mechanism; the translational load-bearing mechanism also has a roller support and a hemispherical support 27 in contact with the lower surface of the plate member 7, the roller support and the plate member 7 form a line contact, the hemispherical support 27 and the plate member 7 form a point contact, and the roller support It includes a first roller support 22 and a second roller support 23. The first roller support 22 and the second roller support 23 are respectively in contact with a pair of diagonal portions of the plate member 7. The axes of the first roller support 22 and the second roller support 23 are perpendicular to each other. The other pair of diagonal portions of the plate member 7 are each in contact with a hemispherical support 27. The tops of the first roller support 22, the second roller support 23 and the hemispherical support 27 are at the same horizontal height. The pressure transmission member 5 is arranged between the downward pressure mechanism and the plate member 7.

[0038] The beneficial effect of adopting the above technical solution is that, unlike the traditional manual weighing and stacking of counterweight blocks, the method of pressurizing by the hydraulic press saves labor and eliminates the safety hazards of manually stacking counterweight blocks.

[0039] When the translation load-bearing mechanism slides to one side, there is no obstruction above. At this time, in order to have a hoisting path space, the plate component is hoisted and placed on the translation frame; when the translation load-bearing mechanism moves to the other side, the loading device applies a load directly above the plate component, which is convenient for applying vertical pressure to conduct the test. This technical solution solves this problem by remotely controlling the translation frame, making the replacement of the plate component convenient and quick, greatly improving work efficiency.

[0040] At the same time, because the horizontal area of ​​the plate component is relatively large, in order to save costs, the hydraulic pressure is generally at one point and downward. If only the middle of the plate component is pressed downward, the local pressure is too large, and the test data is not accurate. The pressure transmission component plays the role of transmitting and dispersing the pressure, playing the role of pressing the plate component downward as a whole, and improving the accuracy of the test.

[0041] The two roller supports and two hemispherical supports form four-way contact with the plate component, realizing stable support for the plate component. At the same time, the roller supports, hemispherical supports and the plate component are in line contact and point contact respectively. Compared with point contact at all four places, the contact area is relatively large, the local stress on the bottom of the plate component is small, and the plate component is not easy to be damaged; compared with line contact and surface contact, the existence of two point contacts makes the friction resistance received by the plate component during horizontal translation or rotation consistent and small. In addition, the roller supports also play the function of guiding the horizontal fine-tuning direction of the plate component. Ensure the accuracy of controlling the supporting position and facilitate the fine-tuning of the translation plate component before the downward pressure test. The two roller supports and two hemispherical supports are arranged diagonally, so that the rotation center of the plate component basically coincides with the centroid when the horizontal rotation is fine-tuned. The mutually perpendicular axis directions of the two roller supports just determine that the plate component can be subjected to better rolling friction when fine-tuning in the two vertical and horizontal directions, and the fine-tuning resistance in these two directions is small.

[0042] In some other embodiments of the present invention, the pressure transmitting member 5 includes a first horizontal square tube 51, and a second horizontal square tube 52 is vertically contacted below each of the two ends of the first horizontal square tube 51, and a third horizontal square tube 54 is provided below each of the two ends of the second horizontal square tube 52. The length directions of the second horizontal square tube 52 and the third horizontal square tube 54 are parallel to each other, and a pad 55 is provided below each of the two ends of the third horizontal square tube 54, and the lower surface of the pad 55 is in contact with the upper surface of the plate member 7.

[0043] The beneficial effect of adopting the above technical solution is that a plurality of square tubes form an integrated pressure transmission component, the overall structure is strong, and the contact area with the plate is increased, and the hydraulic pressure at one place is dispersed to the surrounding areas. It is equivalent to a sturdy, special and easy-to-use auxiliary tooling.

[0044] In other embodiments of the present invention, the first horizontal square tube 51 is welded integrally with the second horizontal square tube 52, the second horizontal square tube 52 is in contact with the third horizontal square tube 54 through a horizontal roller 53, the axial direction of the roller 53 itself is perpendicular to the length direction of the second horizontal square tube 52, the first horizontal square tube 51, the second horizontal square tube 52, the third horizontal square tube 54, and the roller 53 are made of steel, and the pad 55 is made of plastic.

[0045] The beneficial effect of adopting the above technical solution is that the roller 53 can provide rolling friction, which is convenient for fine-tuning the local position of the plate component directly below the upward and downward pressing mechanism in a certain direction. The steel structure has high strength, and the plastic pad can relatively provide a certain elastic buffer to prevent local stress damage to the plate component.

[0046] In other embodiments of the present invention, the first roller support 22, the second roller support 23, and the hemispherical support 27 are made of steel. The hemispherical support 27 has the freedom of rotation about the three coordinate axes of its own sphere center, and the side edges of the plate component 7 are parallel to the axis directions of the first roller support 22 and the second roller support 23.

[0047] The beneficial effects of adopting the above technical solution are: the steel structure has high strength and can withstand large downward pressure, the hemispherical support has low rotational friction and only plays a supporting role for the plate member, and the friction resistance of the plate member when fine-tuning its position on it is low. The length direction of the first roller support and the second roller support determines that the resistance of the plate member is the lowest when moving in the horizontal and vertical directions, which is convenient for fine-tuning in this direction.

[0048] In other embodiments of the present invention, the translation load-bearing mechanism includes a horizontal translation frame 2, a first roller support 22, a second roller support 23, and a hemispherical support 27 are fixed to the translation frame 2 via a pad column 21, the pad column 21 is assembled to the translation frame 2 via bolts, and the translation frame 2 is provided with a plurality of through holes 28 for bolt assembly.

[0049] The beneficial effects of adopting the above technical solution are: a large number of through holes facilitates selective adjustment of the horizontal spacing of the roller bearing and the hemispherical bearing to adapt to plate components of different sizes. The pad column raises the height of the plate component to reduce the stroke of the pressing mechanism.

[0050] In other embodiments of the present invention, the two ends of the sliding plate 26 in the translation frame 2 are respectively provided with a power wheel group 24 and a driven wheel group 25, and the power wheel group 24 and the driven wheel group 25 are respectively in contact with a first slide rail 32 and a second slide rail 33 which are horizontal and parallel to each other, and the height of the first slide rail 32 is lower than that of the second slide rail 33.

[0051] The beneficial effect of adopting the above technical solution is that the power wheel group provides the translational force of the translation frame, and the first slide rail and the second slide rail play the role of limiting guidance.

[0052] In some other embodiments of the present invention, the pressing mechanism includes a hydraulic press 4 fixed on the gantry frame 1, the gantry frame 1 includes a top crossbeam 12 and a vertical column 13 vertically connected to each other, the hydraulic press 4 is fixed to the crossbeam 12, a bottom plate 31 is fixed to the bottom of the vertical column 13, and the gantry frame 1 is also provided with a bottom frame 11 for fixing the second slide rail 33.

[0053] The bottom plate 31 , the first slide rail 32 , and the second slide rail 33 together form the bottom limiting mechanism 3 .

[0054] The beneficial effect of adopting the above technical solution is that the first slide rail also provides friction resistance, and the second slide rail is more used to bear the downward force during the downward pressure test of the downward pressure mechanism to prevent the power wheel set and the driven wheel from being damaged by heavy pressure.

[0055] In some other embodiments of the present invention, the gantry frame 1 also has a plurality of oblique beams 15, the vertical spatial plane where the center line of the oblique beam 15 is located is parallel to the length direction of the first slide rail 32 and the second slide rail 33, and the bottom of the vertical column 13 and the oblique beam 15 are fixed to the bottom plate 31 through the foot seat 14.

[0056] The beneficial effect of adopting the above technical solution is that the oblique beams and the foot seats improve the overall structural strength and stability of the gantry frame.

[0057] In some other embodiments of the present invention, the hydraulic press 4 is a servo hydraulic press, and a load sensor 41 in contact with the pressure transmission member 5 is provided at the bottom of the hydraulic press 4 .

[0058] The beneficial effects of adopting the above technical solution are: the servo hydraulic press can be controlled more accurately, and it is convenient to control the output stroke and force, and the load sensor can also display data in real time.

[0059] In other embodiments of the present invention, a lifting hook 16 with the freedom of translation along the length direction of the top cross beam 12 is provided on the top cross beam 12; the power wheel group 24 and the hydraulic press 4 are controlled by the control system 6. The control system 6 includes a control box 61 and a hydraulic oil source 62 arranged on one side of the base plate 31.

[0060] The beneficial effects of adopting the above technical solution are: this technical solution adopts a high-precision hydraulic servo loading system, edits the mechanical performance test program of the assembled reinforced concrete prefabricated plate components in the control system, and applies the target load to the plate components step by step through the microcomputer-controlled hydraulic press, so that the whole process from loading to unloading is automated, which improves the loading accuracy.

[0061] In actual operation, the gantry frame 1 is placed on a concrete horizontal ground; the translation slide frame 2 is placed on the bottom frame 11; the pad column 21 is connected to the translation slide frame 2 by bolts; the power wheel group 24 is welded to the front end of the translation slide frame 2; the driven wheel group 25 is welded to the rear end of the translation slide frame 2; the first slide rail 32 supports the translation slide frame 2; the hydraulic press 4 is a hydraulic servo actuator, and the load sensor 41 is installed at the front end of the hydraulic press 4. Figure 1 , the translation slide frame 2 slides out along the first slide rail 32 through the power wheel group 24 and the driven wheel group 25, the plate member 7 is installed on the first roller support 22, the second roller support 23, and the hemispherical support 27, and the pressure transmission member 5 is placed in the middle of the plate member 7. Figure 3 As shown, the translation slide frame 2 slides along the first slide rail 32 into the lower part of the hydraulic press 4 of the gantry frame 1. The hydraulic press 4 presses down, the load sensor 41 outputs the load value in real time, and the hydraulic oil source 62 provides power. Figure 1 , Figure 3 , Figure 4 The expression of is exactly the same as the actual operation order.

[0062] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical properties testing system for prefabricated plate components, characterized in that: include: A downward pressing mechanism uses hydraulic pressure to apply vertical downward pressure to the rectangular plate member; A translation load-bearing mechanism is arranged below the pressing mechanism and has a horizontal translation freedom that moves out from directly below the pressing mechanism; the translation load-bearing mechanism also has a roller support and a hemispherical support that are in contact with the lower surface of the plate member, the roller support forms a line contact with the plate member, the hemispherical support forms a point contact with the plate member, the roller support includes a first roller support and a second roller support, the first roller support and the second roller support are respectively in contact with a pair of diagonal portions of the plate member, the axes of the first roller support and the second roller support are perpendicular to each other, the other pair of diagonal portions of the plate member are each in contact with a hemispherical support, and the tops of the first roller support, the second roller support and the hemispherical support are at the same horizontal height; A pressure transmission component is provided between the pressing mechanism and the plate component; The pressure transmission component comprises a first horizontal square tube, each of the two ends of the first horizontal square tube is vertically contacted with a second horizontal square tube, each of the two ends of the second horizontal square tube is provided with a third horizontal square tube, the length directions of the second horizontal square tube and the third horizontal square tube are parallel to each other, each of the two ends of the third horizontal square tube is provided with a cushion block, and the lower surface of the cushion block is in contact with the upper surface of the plate component; The translation load-bearing mechanism comprises a horizontal translation frame, the first roller support, the second roller support, and the hemispherical support are fixed to the translation frame via a pad column, the pad column is assembled with the translation frame via bolts, and the translation frame is provided with a plurality of through holes for bolt assembly; The two ends of the translation frame are respectively provided with a power wheel group and a driven wheel group, the power wheel group and the driven wheel group are respectively in contact with a first slide rail and a second slide rail which are horizontal and parallel to each other, and the height of the first slide rail is lower than that of the second slide rail; The pressing mechanism comprises a hydraulic press fixed on the gantry frame, the gantry frame comprises a top crossbeam and a vertical column vertically connected to each other, the hydraulic press is fixed to the crossbeam, a bottom plate is fixed to the bottom of the vertical column, and the gantry frame is also provided with a bottom frame for fixing the second slide rail; The gantry frame also has a plurality of oblique beams, the vertical space plane where the center lines of the oblique beams are located is parallel to the length directions of the first slide rail and the second slide rail, and the bottoms of the vertical columns and oblique beams are fixed to the base plate through foot seats.

2. A prefabricated plate component mechanical properties testing system according to claim 1, characterized in that: The first horizontal square tube is welded integrally with the second horizontal square tube, the second horizontal square tube is in contact with the third horizontal square tube via a horizontal roller, the axial direction of the roller itself is perpendicular to the length direction of the second horizontal square tube, the first horizontal square tube, the second horizontal square tube, the third horizontal square tube and the roller are made of steel, and the pad is made of plastic.

3. The mechanical properties testing system for prefabricated plate components according to claim 1, characterized in that: The first roller support, the second roller support and the hemispherical support are made of steel. The hemispherical support has rotational freedom around three coordinate axes of its own spherical center. The side of the plate component is parallel to the axis direction of the first roller support and the second roller support.

4. The prefabricated plate component mechanical properties testing system according to claim 1, characterized in that: The hydraulic press is a servo hydraulic press, and a load sensor in contact with a pressure transmission component is provided at the bottom of the hydraulic press.

5. A prefabricated plate component mechanical properties testing system according to claim 4, characterized in that: The top crossbeam is provided with a lifting hook with the freedom of translation along the length direction of the top crossbeam; the power wheel group and the hydraulic press are controlled by a control system, and the control system includes a control box and a hydraulic oil source arranged on one side of the bottom plate.

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