Bearing plate area reducing device for flat plate load test in micro-transformation narrow space

Abstract

The utility model discloses a micro-transformation narrow space flat plate load test bearing plate area reducing device, which comprises an upper plate and a lower plate, one side of the upper plate is provided with a plurality of upper steel bars connected with one side of the lower plate, one side of the lower plate is provided with a plurality of lower steel bars connected with one side of the upper plate, and the upper steel bars and the lower steel bars are arranged in parallel. And the plurality of upper steel bars are respectively matched with the plurality of lower steel bars. According to the pressure bearing plate, the effective and stable load effect can be achieved, the rigidity of the pressure bearing plate is increased with low input cost, the effect is obvious, and therefore the problem that the pressure bearing plate is prone to deformation is effectively solved.

Description

Technical Field

[0001] This application relates to the technical field of engineering detection, and in particular, to a device for changing the diameter of the bearing plate area in a flat plate load test in a micro-renovated narrow space. Background Art

[0002] At present, the code for inspection of foundation bases requires different bearing plates with different areas to be used for load tests in different test sites. In the related art, most of the bearing plates used in the industry are single-layer rectangular steel plates with a certain thickness. When the area of the bearing plate is large, it is easy to cause deformation of the steel plate. The deformed bearing plate increases the measurement error of the settlement amount and does not meet the code requirements, so it has to be scrapped.

[0003] In the past, increasing the thickness of the bearing plate was mostly used to improve the stiffness of the plate. However, the method of increasing the stiffness of the bearing plate by increasing the thickness not only has a high input cost but also has an insignificant effect. Utility Model Content

[0004] The purpose of this application is to provide a device for changing the diameter of the bearing plate area in a flat plate load test in a micro-renovated narrow space, so as to solve the problems that the bearing plate is easy to deform and the method of increasing the stiffness of the bearing plate by increasing the thickness not only has a high input cost but also has an insignificant effect.

[0005] A device for changing the diameter of the bearing plate area in a flat plate load test in a micro-renovated narrow space provided by this application adopts the following technical solutions:

[0006] The device for changing the diameter of the bearing plate area in a flat plate load test in a micro-renovated narrow space includes an upper plate and a lower plate. A plurality of upper steel bars connected to one side of the lower plate are arranged on one side of the upper plate, and a plurality of lower steel bars connected to one side of the upper plate are arranged on one side of the lower plate. The plurality of upper steel bars are respectively matched with the plurality of lower steel bars.

[0007] Further, there are two upper steel bars, and the two upper steel bars form a cross-shaped steel bar together. Both sides of the cross-shaped steel bar are respectively connected to the upper plate and the lower plate.

[0008] Further, the plurality of lower steel bars form an X-shaped steel bar together. Both sides of the X-shaped steel bar are respectively connected to the upper plate and the lower plate.

[0009] Further, a slot is opened in the middle of one of the upper steel bars, and the slot is matched with the other upper steel bar.

[0010] Further, a cross-shaped slot is opened in the middle of the X-shaped steel bar, and the cross-shaped slot is matched with the cross-shaped steel bar.

[0011] Further, the area of the upper plate is smaller than the area of the lower plate.

[0012] Further, inclined portions are provided on the outer side walls of the cross-shaped steel bars and the X-shaped steel bars.

[0013] Further, ear buckles are symmetrically provided on the outer edges of the cross-shaped steel bars and the X-shaped steel bars.

[0014] Compared with the prior art, the beneficial effects of this application are as follows: By setting up the structure of welding the upper plate, the lower plate, the upper steel bars and the lower steel bars together, an effective and stable load-bearing effect can be achieved. With a relatively small input cost, the stiffness of the bearing plate can be increased, and the effect is obvious, thus effectively solving the problem that the bearing plate is prone to deformation.

[0015] At the same time, the solution of this application also improves the utilization rate of the bearing plate through the test that one bearing plate can be applied to two load areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Figures (a)-(c) are the top view, front elevation view and 45° elevation view of the device for changing the diameter of the bearing plate area in the flat plate load test in a micro-renovated narrow space according to the embodiment of this application.

[0017] Figure 2 Figures (a)-(c) are the top views of the cross-shaped steel bars, X-shaped steel bars and cross-shaped steel bars according to the embodiment of this application.

[0018] Figure 3 Figures (a)-(c) are the elevation views of the cross-shaped steel bars and X-shaped steel bars according to the embodiment of this application.

[0019] Figure 4 Figures (a)-(i) are the device diagrams of the bearing plate with an area of 1.0㎡ - 1.2㎡ according to the second embodiment of this application.

[0020] Figure 5 Figures (a)-(i) are the device diagrams of the bearing plate with an area of 1.5㎡ - 4.0㎡ according to the third embodiment of this application.

[0021] Description of the reference numerals: 1. Upper plate; 2. Lower plate; 3. Upper steel bars; 4. Lower steel bars; 5. One-word slot; 6. Cross-shaped slot; 7. Inclined portion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further describes this application in detail Figures 1-5 with reference to the attached drawings.

[0023] Embodiment 1:

[0024] The embodiment of this application discloses a device for changing the diameter of the bearing plate area in the flat plate load test in a micro-renovated narrow space. Refer to Figure 1In this embodiment, the device uses a load-bearing plate with an area of 0.5 m2 to 1.0 m2. Specifically, the device includes an upper plate 1, a lower plate 2, an upper steel bar 3, and a lower steel bar 4. The upper plate 1 is located at the upper end of the lower plate 2, and the area of the upper plate 1 is smaller than that of the lower plate 2.

[0025] More specifically, the upper plate 1 has a side length of 710 mm, an area of 0.71 m2, and a thickness of 20 mm, and is generally square in shape. The lower plate 2 has a side length of 1000 mm, an area of 1.0 m2, and a thickness of 20 mm, and is generally square in shape. Furthermore, the upper plate 1 and lower plate 2 may also be formed in other shapes, such as circular or rectangular.

[0026] At the same time, refer to Figure 2 and Figure 3 In this embodiment, the upper steel bar 3 is provided with two pieces, one of which has a straight groove 5 in the middle. The straight groove 5 separates the upper steel bar 3 into two identical steel bars, and the straight groove 5 cooperates with and clamps the other upper steel bar 3. The provision of the straight groove 5 can guide and position the combination of the two upper steel bars 3, so that the two upper steel bars 3 cooperate with each other to form a cross-shaped steel bar. The two sides of the cross-shaped steel bar are welded to the surface of the upper plate 1 and the surface of the lower plate 2 respectively.

[0027] There are four lower steel bars 4, one side of which is welded to the four diagonal surfaces of the lower plate 2. The four lower steel bars 4 cooperate with each other to form an X-shaped steel bar; and the side of the X-shaped steel bar facing away from the lower plate 2 is fixedly welded to a surface of the upper plate 1.

[0028] At the same time, the X-shaped steel bar cooperates with the cross-shaped steel bar. Specifically, a cross slot 6 is provided in the middle of the X-shaped steel bar, and the cross slot 6 cooperates with the middle of the cross-shaped steel bar. The opening of the cross slot 6 leaves enough space for the cross-shaped steel bar, so that the cross-shaped steel bar is positioned and clamped in the cross slot 6 of the X-shaped steel bar, so that the cross-shaped steel bar and the X-shaped steel bar are clamped and combined with each other to form a M-shaped steel bar.

[0029] The arrangement of the cross-shaped steel bar not only ensures that the upper plate 1 and the lower plate 2 can be spliced and matched, but also effectively and firmly connects the upper plate 1 and the lower plate 2. Moreover, the upper plate 1, the lower plate 2 and the cross-shaped steel bar are made of the same material, that is, steel, which can achieve the effect of quick and stable welding.

[0030] Therefore, the pressure plate device formed by welding the upper plate 1, the lower plate 2 and the M-shaped steel bar can effectively and stably bear the load, increase the stiffness of the pressure plate with a relatively small investment cost, and has a more obvious effect, thereby effectively solving the problem of easy deformation of the pressure plate.

[0031] Meanwhile, the solution of the present application also enables a bearing plate to be applicable to tests with two load areas, improving the utilization rate of the bearing plate.

[0032] Preferably, inclined portions 7 are provided on the outer side walls of the cross-shaped steel bars and X-shaped steel bars, so that the cross-sections of the upper steel bars 3 and the lower steel bars 4 are trapezoidal structures, making the cross-shaped steel bars and X-shaped steel bars more firmly welded between the upper plate 1 and the lower plate 2 to form a bearing plate device, thereby improving the stiffness of the bearing plate device.

[0033] Meanwhile, after the upper plate 1 and the lower plate 2 are fitted, due to the setting of the inclined portions 7, not only materials and weight are reduced, cost is saved, but also it can prevent the cross-shaped steel bars and X-shaped steel bars from scratching the handling personnel during handling.

[0034] More specifically, the upper steel bar 3 is separated into two identical steel bars through the single-slot 5. The upper edge of the steel bar in this part is 345 mm, the lower edge is 490 mm, the thickness is 20 mm, and the height is 200 mm. And the upper edge of the upper steel bar 3 without the single-slot 5 is 700 mm, the lower edge is 990 mm, the thickness is 20 mm, and the height is 200 mm.

[0035] Meanwhile, the upper edges of the four lower steel bars 4 are all 490 mm, the lower edges are 695 mm, the thickness is 20 mm, and the height is 200 mm.

[0036] In addition, in order to facilitate the hoisting of the bearing plate device, ear buckles are symmetrically installed on the outer edges of the cross-shaped steel bars and X-shaped steel bars. Through the setting of the ear buckles, the bearing plate device can be hoisted by using an external hoisting machine.

[0037] The implementation principle of a variable-diameter device for the bearing plate area in a flat plate load test in a slightly renovated narrow space in an embodiment of the present application is as follows: First, the upper steel bar 3 provided with the single-slot 5 is fully welded to the corresponding position in the middle of the surface of the upper plate ½, and then the other upper steel bar 3 without the single-slot 5 is clamped and positioned with the upper steel bar 3 provided with the single-slot 5, so as to fully weld the upper steel bar 3 without the single-slot 5 to the corresponding position in the middle of the surface of the upper plate 1, and the two upper steel bars 3 form a cross-shaped steel bar.

[0038] Then, the four lower steel bars 4 are fully welded to the four corners of the surface of the lower plate 2 to form an X-shaped steel bar. After the upper plate 1 is integrally inverted on the lower plate 2, through the cross-slot 6 in the middle of the X-shaped steel bar, the cross-shaped steel bar and the X-shaped steel bar are clamped and combined with each other to form a cross-shaped steel bar. Finally, the side of the X-shaped steel bar facing away from the lower plate 2 is fully welded to one side surface of the upper plate 1, and the side of the cross-shaped steel bar facing away from the upper plate 1 is fully welded to one side surface of the lower plate 2, thereby completing the assembly of the bearing plate device.

[0039] Embodiment 2:

[0040] Referring to Figure 4 , in this embodiment, the difference between the second embodiment and the first embodiment is that: the device uses a bearing plate with an area of 1.0㎡ - 1.2㎡.

[0041] Specifically, the side length of the upper plate 1 is 1000mm and the thickness is 20mm; the side length of the lower plate 2 is 1100mm and the thickness is 20mm.

[0042] The upper steel bar 3 is separated into two identical steel bars through the single-slot 5. The upper edge of the steel bar in this part is 490mm, the lower edge is 540mm, the thickness is 20mm, and the height is 200mm. And the upper edge of the upper steel bar 3 without the single-slot 5 is 990mm, the lower edge is 1090mm, the thickness is 20mm, and the height is 200mm.

[0043] At the same time, the upper edges of the four lower steel bars 4 are all 700mm, the lower edges are 770mm, the thickness is 20mm, and the height is 200mm.

[0044] Embodiment Three:

[0045] Referring to Figure 5 , in this embodiment, the differences between the third embodiment and the first and second embodiments are that: the device uses a bearing plate with an area of 1.5㎡ - 4.0㎡.

[0046] Specifically, the side length of the upper plate 1 is 1230mm and the thickness is 20mm; the side length of the lower plate 2 is 2000mm and the thickness is 20mm.

[0047] The upper steel bar 3 is separated into two identical steel bars through the single-slot 5. The upper edge of the steel bar in this part is 610mm, the lower edge is 995mm, the thickness is 20mm, and the height is 200mm. And the upper edge of the upper steel bar 3 without the single-slot 5 is 1220mm, the lower edge is 1990mm, the thickness is 20mm, and the height is 200mm.

[0048] At the same time, the upper edges of the four lower steel bars 4 are all 840mm, the lower edges are 1375mm, the thickness is 20mm, and the height is 200mm.

[0049] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A variable-diameter device for the bearing plate area of a flat plate load test in a micro-renovated narrow space, characterized in that: It includes an upper plate (1) and a lower plate (2). On one side of the upper plate (1), there are multiple upper steel bars (3) connected to one side of the lower plate (2). On one side of the lower plate (2), there are multiple lower steel bars (4) connected to one side of the upper plate (1). The multiple upper steel bars (3) are respectively matched with the multiple lower steel bars (4).

2. The variable-diameter device for the bearing plate area of the flat plate load test in a micro-renovated narrow space according to claim 1, wherein: There are two upper steel bars (3). The two upper steel bars (3) form a cross-shaped steel bar together. The two sides of the cross-shaped steel bar are respectively connected to the upper plate (1) and the lower plate (2).

3. The variable-diameter device for the bearing plate area of the flat plate load test in a micro-renovated narrow space according to claim 2, characterized in that: The multiple lower steel bars (4) form an X-shaped steel bar together. The two sides of the X-shaped steel bar are respectively connected to the upper plate (1) and the lower plate (2).

4. The variable-diameter device for the bearing plate area of the flat plate load test in a micro-renovated narrow space according to claim 2, characterized in that: A slot (5) is opened in the middle of one of the upper steel bars (3). The slot (5) is matched with the other upper steel bar (3).

5. The variable-diameter device for the bearing plate area of the flat plate load test in a micro-renovated narrow space according to claim 3, characterized in that: A cross slot (6) is opened in the middle of the X-shaped steel bar. The cross slot (6) is matched with the cross-shaped steel bar.

6. The variable-diameter device for the bearing plate area of the plate load test in a micro-renovated narrow space according to claim 1, characterized in that: The area of the upper plate (1) is smaller than the area of the lower plate (2).

7. The variable-diameter device for the bearing plate area of the flat plate load test in a micro-renovated narrow space according to claim 3, wherein: Inclined parts (7) are provided on the outer side walls of the cross-shaped steel bar and the X-shaped steel bar.

8. The variable-diameter device for the bearing plate area of the flat plate load test in a micro-renovated narrow space according to claim 3, wherein: Ear buckles are symmetrically arranged on the outer edges of the cross-shaped steel bar and the X-shaped steel bar.

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