Flat plate load experiment supporting unit and structure and use method

Abstract

The invention relates to the technical field of structural engineering, and discloses a flat plate load experiment supporting unit and supporting structure and a using method, the flat plate load experiment supporting unit comprises a supporting column and inclined rods, two ends of each inclined rod are provided with elbows, a plurality of inclined rods form a group, the inclined rods in the same group are arranged in a crossed mode, and the elbows of the same inclined rod penetrate through holes in a first groove and a second groove. Therefore, the first supporting piece and the second supporting piece are supported in an auxiliary mode through the inclined rods. During use, firstly, proper holes are selected according to field working conditions and proper height intervals, the distance between the bottom face of the first supporting piece and the top face of the second supporting piece is determined, then the inclined rods are arranged in a mode that every two inclined rods form a group, and the inclined rods in the same group are arranged in a crossed mode. And the elbows at the two ends are respectively inserted into the corresponding holes in the first groove and the second groove, so that the technical problems of tedious disassembly and assembly and increased measurement error caused by overweight and overlarge volume of a flat plate test supporting structure in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of structural engineering, and in particular to a fast-installed flat plate experimental support structure for a molten salt energy storage insulation foundation. Background Art

[0002] In the construction of molten salt energy storage insulation foundation, compaction and deformation modulus testing of ceramsite are often required experiments. Usually after the ceramsite is compacted in layers, this experiment can be used to measure the bearing capacity, foundation coefficient, deformation modulus, etc. of each layer of ceramsite at the base of the molten salt storage tank. At present, the flat plate load test is suitable for determining the bearing capacity and deformation modulus of each layer of ceramsite under the foundation bearing plate. In addition to the measuring instrument part, the main items of the flat plate load test also include the bracket part.

[0003] The traditional reference beam bracket in the prior art is composed of assembled steel pipe fasteners or concrete piers as the reference beam bracket to complete the experimental detection task. However, the traditional bracket has the disadvantages of cumbersome disassembly and assembly, large size, and low efficiency. For the convenience of the experiment, concrete piers are usually used as reference beam brackets on site. However, at least six concrete blocks are usually required to set up concrete piers, and their mass reaches more than 10 tons. The hoisting process is relatively slow, and the hoisting of heavy objects has additional safety risks. At the same time, the concrete pier occupies a large area and is very heavy, which can easily cause data errors in the surrounding areas. At the same time, due to its huge mass, concrete has a certain compaction effect on the roadbed, and the compaction effect itself has a certain impact on the test area. As a result, the obtained data has certain errors, and the hoisting requires more manpower and material resources, and the efficiency and economic value still need to be improved.

[0004] In the invention patent application with publication number CN118745727A and name "Device and method for detecting the bearing capacity of foundation of water conservancy project", a device and method for detecting the bearing capacity of foundation of water conservancy project are disclosed, which includes two bottom plates, a special steel plate is placed between the two bottom plates, a flat plate load meter is placed on the special steel plate, and the flat plate load meter is located in the center of the top surface of the special steel plate. An iron frame is arranged above the two bottom plates, and the iron frame, a first sliding bar and a guide rail are also arranged. When in use, the flat plate load meter is first fixed to the detection point, and then the crane moves the iron frame and the bottom plate to the top of the flat plate load meter through the lifting ring and then releases it downward. Since the iron frame and the bottom plate are movably connected by the sliding bar, during the descent, the flat plate load meter gradually lifts the iron frame and forces it to separate from the bottom plate.

[0005] Although the above invention application includes a flat test support structure, the weight of this support structure is concentrated on the middle detector during installation. When testing expanded clay in a storage tank, the preload requirement is usually not more than 0.01MPa. The above support structure will cause the preload standard to be exceeded during installation, thereby affecting the detection. Moreover, the main force-bearing end of the above support structure is the auxiliary jack, which is heavy and time-consuming and labor-intensive to carry. Summary of the invention

[0006] In order to solve the technical problems in the prior art that the plate test support structure is too heavy and too large, resulting in cumbersome assembly and disassembly and increased measurement errors, the present invention proposes a plate load test support unit and structure and a use method.

[0007] A flat plate load test support unit comprises a first support member at the top, a second support member at the bottom, and an even number of support columns. The first support member and the second support member are connected at both ends by support columns with adjustable heights. The first support member and the second support member both adopt T-shaped steel beams, and the web of the first support member is downwardly arranged, and the web of the second support member is upwardly arranged. A first groove is penetrated on the web of the first support member, and a second groove is penetrated on the web of the second support member. A plurality of evenly arranged holes are both disposed at the top of the first groove and the bottom of the second groove, and each hole is connected to the first groove or the second groove. An even number of diagonal rods are also included, and elbows are disposed at both ends of the diagonal rods. The diagonal rods are grouped in twos, and the diagonal rods in the same group are cross-arranged. The elbows of the diagonal rods in the same group pass through the holes corresponding to the vertical positions on the first groove and the second groove and are fixed on the two support members, so that the first support member and the second support member are auxiliary supported by the diagonal rods.

[0008] The above-mentioned flat plate load test support unit, the support column includes a support screw, a lower sleeve and an adjustment sleeve, the inner side of the adjustment sleeve is provided with an internal thread matching the support screw, the support screw passes through the adjustment sleeve and is inserted into the lower sleeve to form a support column, and the adjustment sleeve is supported on the top end of the lower sleeve.

[0009] In the above-mentioned flat plate load test support unit, first short threaded sleeves are provided at both ends of the lower surface of the first support member, and the internal thread of the first short threaded sleeve matches the thread of the support screw, and the upper end of the support screw is connected and fixed to the first support member through the first short threaded sleeve; short threaded steel bars are provided at both ends of the upper surface of the second support member, and a second short threaded sleeve matching the short threaded steel bars is provided at the bottom of the lower sleeve, and the lower sleeve is connected and fixed to the second support member through the second short threaded sleeve.

[0010] The support screw of the above-mentioned flat plate load test support unit is made of threaded steel.

[0011] In the above-mentioned flat plate load test support unit, a cylinder is arranged on the outer wall of the adjusting sleeve.

[0012] The above-mentioned flat plate load test support unit has an elbow thread on the elbow, and the elbow is fixed on the hole through a nut corresponding to the elbow thread after passing through the hole.

[0013] In the above-mentioned flat plate load test support unit, a buckle is provided at the connection between each hole and the first groove or the second groove. The buckle can be rotated and opened in the hole with one side of the hole as the axis. After the elbow passes through the hole, its vertical direction is fixed by the buckle.

[0014] A flat plate load test support structure adopts any one of the flat plate load test support units in the above-mentioned technical solutions, the lengths of the support columns, the angles between the diagonal bars and the horizontal direction of the flat plate load test support units are adjusted to specific values, and the flat plate load test support units are placed adjacent to each other, so that the upper surfaces of the first support members on the flat plate load test support units together form a support surface.

[0015] A method for using a flat plate load test support structure, using the flat plate load test support structure of the above claims, comprises the following steps: S1: Determine the distance between the bottom surface of the first support member and the top surface of the second support member according to the on-site working conditions; S2: Arrange the diagonal rods in groups of two, cross each other in the same group, select appropriate holes according to the height requirements, and insert the elbows at both ends into the holes corresponding to the positions on the first groove and the second groove respectively; S3: Screw the lower sleeve into the short threaded steel bars at both ends of the second support member through the second short threaded sleeve; S4: Rotate the adjustment sleeves into the corresponding support screws in sequence, then insert the support screws into the lower sleeves at the same time, and screw the top ends of the same number of support screws into the first short threaded sleeves at both ends of the first support member at the same time; S5: The sleeve is rotated to adjust the length of the support column so that the length of the support column matches the distance between the bottom surface of the first support member and the top surface of the second support member, thereby completing the setting of the single flat plate load test support unit.

[0016] S6: Repeat the above steps S~S to set up a plurality of flat plate load test support units, so that the heights of the plurality of flat plate load test support units are respectively adjusted to correspond to their placement positions, and the set up flat plate load test support units are placed at designated positions, so that the plurality of first support members together form a support surface.

[0017] The beneficial effects of the present invention include: the present invention adopts support columns and diagonal rods for support between the first support surface and the second support surface, so that the support structure is simpler and lighter, and less time and manpower are spent on construction, and the diagonal rods can be directly stored through the grooves so that the support structure can be folded and stored, making the structure easier to disassemble and transport, and at the same time increasing the efficiency of reassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of one embodiment of the flat plate load test support structure of the present invention.

[0019] Figure 2 It is a side view of one embodiment of the flat plate load test support structure of the present invention.

[0020] Figure 3 This is a schematic structural diagram of a support column in one embodiment of a flat plate load test support structure of the present invention.

[0021] Figure 4 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0022] Figure 5 for Figure 1 Enlarged schematic diagram of point B in the middle.

[0023] Figure 6 for Figure 1 Enlarged schematic diagram at point C in the middle.

[0024] Markings in the figure are: 1-first supporting surface, 11-first groove, 12-first short threaded sleeve, 2-second supporting surface, 21-second groove, 22-short threaded steel, 3-support column, 31-support rod, 32-lower sleeve, 33-adjusting sleeve, 34-second short threaded sleeve 35-cylinder, 4-hole, 5-inclined rod, 51-elbow, 6-buckle. DETAILED DESCRIPTION

[0025] The present invention will be described below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 6The support structure of the flat plate load test of the present invention comprises a first support member 1 at the top, a second support member 2 at the bottom, and an even number of support columns 3. The first support member 1 and the second support member 2 are connected at both ends by support columns 3 with adjustable heights to ensure that the first support surface 1 and the second support surface are subjected to uniform force on both sides. The first support member 1 and the second support member 2 both adopt T-shaped steel beams. The T-shaped steel beam has a simple structure and is easy to process. The web of the first support member 1 faces downward and the web of the second support member 2 faces upward. A first groove 11 is penetrated on the web of the first support member 1, and a second groove 21 is penetrated on the web of the second support member 2. A plurality of evenly arranged holes 4 are disposed on the top of the first groove 11 and the bottom of the second groove 21, and each hole 4 is connected to the first groove 11 or the second groove 21. The support structure also comprises an even number of inclined rods 5, and curved rods are disposed at both ends of the inclined rods 5. The heads 51 and the diagonal rods 5 are grouped in two, and the diagonal rods 5 in the same group are arranged crosswise. The elbows 51 of the same group of diagonal rods 5 pass through the holes 4 corresponding to the vertical positions on the first groove 11 and the second groove 21 and are fixed on the two support members, so that the first support member 1 and the second support member 2 are assisted in supporting by the diagonal rods 5. According to actual needs, the holes 4 on the first groove 11 and the holes 4 on the second groove 21 through which the elbows 51 of the same diagonal rod 5 pass may be adjacent to or spaced apart in the vertical direction. When disassembly or temporary storage is required, the support column 3 can be removed first, and then all the elbows 51 can be taken out of the holes 4 so that they can slide in the first groove 11 or the second groove 12, so that all the diagonal rods 5 can change their orientations and be placed in the first support member 1 and the second support member 2 for storage, and disassembly and reassembly are more convenient.

[0027] Further, such as Figure 3 As shown, the support column 3 includes a support screw 31, a lower sleeve 32 and an adjusting sleeve 33. The support screw 31 is provided with an external thread, and the inner side of the adjusting sleeve 33 is provided with an internal thread matching the support screw 31. The support screw 31 passes through the adjusting sleeve 33 and is inserted into the lower sleeve 32 to form the support column 3. The adjusting sleeve 33 is supported on the top end of the lower sleeve 32. The support column 3 has a simple and reliable structure and is easy to load and unload.

[0028] Furthermore, first short threaded sleeves 12 are provided at both ends of the lower surface of the first support member 1, and the internal thread of the first short threaded sleeve 12 matches the thread of the support screw 31, and the upper end of the support screw 31 is connected and fixed to the first support member 1 through the first short threaded sleeve 12; short threaded steel bars 22 are provided at both ends of the upper surface of the second support member 2, and a second short threaded sleeve 34 matching the short threaded steel bars 22 is provided at the bottom of the lower sleeve 32, and the lower sleeve 32 is connected and fixed to the second support member 2 through the second short threaded sleeve 34. Through the above structure, while keeping the support column 3 and the first support member 1 and the second support member 2 under good force, it is also convenient to adjust the height and load and unload.

[0029] Furthermore, the support screw 31 is made of threaded steel, which reduces weight and volume while significantly reducing costs and transportation difficulties compared to the bearing structure in the prior art.

[0030] Furthermore, a cylinder 35 is provided on the outer wall of the adjusting sleeve 33 , and the shape of the cylinder 35 can be customized according to the working conditions to facilitate operation without tools or operation with tools, thereby reducing the difficulty of adjusting the adjusting sleeve 33 .

[0031] Furthermore, an elbow thread is provided on the elbow 51 , and after the elbow 51 passes through the hole 4 , it is fixed on the hole 4 through a nut corresponding to the elbow thread.

[0032] Furthermore, a buckle 6 is provided at the connection between each hole 4 and the first groove 11 or the second groove 12. The buckle 6 can be rotated and opened in the hole 4 with one side of the hole 4 as the axis. After the elbow 51 passes through the hole 4, its vertical direction is fixed by the buckle 6.

[0033] The method for using the flat plate load test support structure adopts any one of the flat plate load test support structures in the above technical solutions, and comprises the following steps: S1: Determine the distance between the bottom surface of the first support member 1 and the top surface of the second support member 2 according to the on-site working conditions; S2: Arrange the inclined rods 5 in groups of two, cross the inclined rods 5 in the same group, select appropriate holes 4 according to the height requirements, and insert the elbows 51 at both ends into the holes 4 corresponding to the positions on the first groove 11 and the second groove 21 respectively; S3: Screw the lower sleeve 32 into the short threaded steel bars 22 at both ends of the second support member 2 through the second short threaded sleeve 34; S4: Rotate and insert the adjustment sleeves 33 into the corresponding support screws 31 in sequence, then insert the support screws 31 into the lower sleeves 32 at the same time, and screw the top ends of the same number of support screws 31 into the first short threaded sleeves 12 at both ends of the first support member 1 at the same time; S5: By rotating the adjustment sleeve 33, the length of the support column 3 matches the distance between the bottom surface of the first support member 1 and the top surface of the second support member 2, thereby completing the setting of the single flat plate load test support unit.

[0034] S6: Repeat the above steps S1 to S5 to set up a plurality of flat plate load test support units, so that the heights of the plurality of flat plate load test support units are adjusted to correspond to their placement positions, and the set up flat plate load test support units are placed at designated positions, so that a plurality of first support members 1 together form a support surface, and finally complete the installation of the entire support structure.

[0035] The present invention described in the above embodiments can be assembled quickly and conveniently when in use, wherein the T-beam has good bending resistance and can also be replaced with flat steel, channel steel, or square steel according to specific working conditions; the diagonal rod 5 can be made of hollow steel pipe, which is low-cost and easier to process; the spacing between different holes 4 can be selected according to the angle requirement between the diagonal rod 5 and the horizontal direction.

[0036] Compared with the prior art, the present invention provides a planar load test support structure, which, through the inclined rods and the support columns of a specific structure, plays a better supporting role for the first support surface and the second support surface, while greatly reducing the volume and weight of the support structure, reducing the error during measurement, and saving transportation and loading and unloading costs, solving the technical problems in the prior art of the flat plate test support structure being too heavy and too large, resulting in cumbersome disassembly and assembly and increased measurement errors.

Claims

1. A flat plate load test support unit, comprising a first support member (1) at the top, a second support member (2) at the bottom, and an even number of support columns (3), wherein both ends of the first support member (1) and the second support member (2) are connected via support columns (3) with adjustable heights, and characterized in that: The first support member (1) and the second support member (2) are both T-shaped steel beams, and the web of the first support member (1) is downwardly disposed, and the web of the second support member (2) is upwardly disposed, a first groove (11) is penetrated on the web of the first support member (1), and a second groove (21) is penetrated on the web of the second support member (2), and a plurality of evenly arranged holes (4) are disposed at the top of the first groove (11) and the bottom of the second groove (21), and each of the holes (4) is aligned with the first groove (11) or The first support member (1) and the second support member (2) are connected to each other through the first groove (11) and the second groove (21); and the first support member (1) and the second support member (2) are connected to each other through the first groove (11) and the second groove (21); and the first support member (1) and the second support member (2) are connected to each other through the first groove (11) and the second groove (21); and the first support member (1) and the second support member (2) are auxiliary supported by the first support member (1) and the second support member (2) through the second support member (1) and the second groove (21).

2. The flat plate load test support unit according to claim 1, characterized in that: The support column (3) comprises a support screw (31), a lower sleeve (32) and an adjustment sleeve (33); an inner side of the adjustment sleeve (33) is provided with an internal thread matching the support screw (31); the support screw (31) passes through the adjustment sleeve (33) and is inserted into the lower sleeve (32) to form the support column (3); the adjustment sleeve (33) is supported on the top end of the lower sleeve (32).

3. The flat plate load test support unit according to claim 2, characterized in that: A first short threaded sleeve (12) is provided at both ends of the lower surface of the first support member (1), and the internal thread of the first short threaded sleeve (12) matches the thread of the support screw (31), and the upper end of the support screw (31) is connected and fixed to the first support member (1) through the first short threaded sleeve (12); short threaded steel bars (22) are provided at both ends of the upper surface of the second support member (2), and a second short threaded sleeve (34) matching the short threaded steel bars (22) is provided at the bottom of the lower sleeve (32), and the lower sleeve (32) is connected and fixed to the second support member (2) through the second short threaded sleeve (34).

4. The flat plate load test support unit according to claim 2, characterized in that: The support screw rod (31) is made of threaded steel.

5. The flat plate load test support unit according to claim 2, characterized in that: A cylinder (35) is arranged on the outer wall of the adjusting sleeve (33).

6. The flat plate load test support unit according to claim 1, characterized in that: The elbow (51) is provided with an elbow thread, and after passing through the hole (4), the elbow (51) is fixed to the hole (4) via a nut corresponding to the elbow thread.

7. The flat plate load test support unit according to claim 1, characterized in that: A buckle (6) is provided at the connection between each hole (4) and the first groove (11) or the second groove (12); the buckle (6) can be rotated and opened in the hole (4) with one side of the hole (4) as the axial direction; after the elbow (51) passes through the hole (4), its vertical direction is fixed by the buckle (6).

8. Flat plate load test support structure, characterized in that: A plurality of the flat plate load test support units described in any one of claims 1 to 7 are used, the lengths of the support columns (3) and the angles between the diagonal bars (5) and the horizontal direction of the plurality of the flat plate load test support units are adjusted to specific values, and the plurality of the flat plate load test support units are placed adjacent to each other, so that the upper surfaces of the first support members (1) on the plurality of the flat plate load test support units together form a support surface.

9. A method for using a flat plate load test support structure, characterized in that: The flat plate load test support structure according to claim 8 comprises the following steps: S1: Determine the distance between the bottom surface of the first support member (1) and the top surface of the second support member (2) according to the on-site working conditions; S2: Arrange the inclined rods (5) in groups of two, cross-arrange the inclined rods (5) in the same group, select appropriate holes (4) according to height requirements, and insert the elbows (51) at both ends into the holes (4) corresponding to the positions on the first groove (11) and the second groove (21), respectively; S3: screwing the lower sleeve (32) into the short threaded steel bars (22) at both ends of the second support member (2) through the second short threaded sleeve (34); S4: Rotate the adjustment sleeves (33) in sequence and insert them into the corresponding support screws (31), then insert the support screws (31) into the lower sleeves (32) at the same time, and screw the top ends of the same number of support screws (31) into the first short threaded sleeves (12) at both ends of the first support member (1) at the same time; S5: by rotating the adjustment sleeve (33), the length of the support column (3) is matched with the distance between the bottom surface of the first support member (1) and the top surface of the second support member (2), thereby completing the setting of the single flat plate load test support unit; S6: Repeat the above steps S1 to S5 to set up a plurality of flat plate load test support units, so that the heights of the plurality of flat plate load test support units are adjusted to correspond to their placement positions, and the set flat plate load test support units are placed at designated positions, so that the plurality of first support members (1) together form a support surface.

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