A trapezoidal I-beam foundation structure

Abstract

The present invention discloses a trapezoidal I-beam foundation structure, which relates to the technical field of building structures. It includes a ground beam body, a trapezoidal support plate, and a square support plate. A plurality of trapezoidal support plates are located on the inner side of one side of the ground beam body. The trapezoidal support plate and the ground beam body are both fixed by welding. The square support plate is located on the inner side of the other side of the ground beam body. The square support plates are both fixed by welding. The upper ends of the trapezoidal support plate and the square support plate are both provided with a first fixing through hole, and both ends of the ground beam body are both provided with a second fixing through hole. The patent of the present invention makes the connection between the ground beams more firm through the connection structure design, avoiding the influence on the later construction due to the insufficient firmness of the connection between the ground beams. Through the displacement structure design, the fixed columns can be displaced when they need to be moved, and can be fixed after the displacement operation is completed, so that the applicability of the structure is better.

Description

Technical Field

[0001] The invention relates to the technical field of building structures, in particular to a trapezoidal I-shaped ground beam foundation structure. Background Art

[0002] At present, most of the steel structure foundations of acid tanks are concrete foundations (most of which are used to install steel structure houses around the acid tanks). It is necessary to dig deep into the original ground and use steel bar anchoring, concrete pouring and other methods. However, the existing steel structure foundations of acid tanks have high investment costs and long construction periods. In addition, the connection between the ground beams is not strong enough, which affects the later construction. In addition, the existing steel structure foundations of acid tanks cannot adjust the position of the fixed columns, which makes the structure not suitable enough. Summary of the invention

[0003] The purpose of this patent is to provide a trapezoidal I-beam foundation structure to solve the existing problems: the existing acid tank steel structure foundation has high investment cost, long construction period, and the connection between the ground beams is not strong enough, which affects the later construction.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a trapezoidal I-beam foundation structure, comprising a ground beam body, a trapezoidal support plate, and a square support plate, wherein the trapezoidal support plate is located on the inner side of one side of the ground beam body, and the trapezoidal support plate and the ground beam body are both fixed by welding connection, and the square support plate is located on the inner side of the other side of the ground beam body, and the square support plate and the ground beam body are both fixed by welding connection, the upper ends of the trapezoidal support plate and the square support plate are both provided with a first fixing through hole, the two ends of the ground beam body are both provided with a second fixing through hole, and the two sides of the lower end of the ground beam body are both provided with a plurality of fixing installation through holes, two slide rails are fixed at the top center of the ground beam body, and sliding grooves are provided at the upper end of the ground beam body and on both sides of the slide rails, and two first slots are provided at both ends of the upper end of the ground beam body;

[0005] A lower fixing block and a plug-in fixing structure are fixed between the ground beam body and the other ground beam body, the plug-in fixing structure is located at the upper end of the lower fixing block and is connected by plugging, the plug-in fixing structure comprises an upper fixing block and a plug-in block, the plug-in block is located at the lower end of the upper fixing block, a connecting groove is provided at the upper end of the lower fixing block, a middle fixing block and a connecting plate are fixed between the lower fixing block and the plug-in fixing structure and at both sides of the connecting groove, the connecting plate is located at the upper end of the middle fixing block, two C-shaped fixing support blocks and a fixed support plate are fixed between the lower end of the connecting plate away from one end of the middle fixing block and the upper end of the lower fixing block, the fixed support plate is located between the two C-shaped fixing support blocks, two plug-in grooves are formed between the C-shaped fixing support block and the fixed support plate, two second slots are provided inside the connecting plate, the plug-in groove is located at the lower end of the second slot, and the lower end of the plug-in block passes through the second slot and is located inside the plug-in groove;

[0006] The lower end of the ground beam body is located inside the connecting groove and is slidably connected, the middle part of the ground beam body is located between the two middle fixed blocks and is slidably connected, the upper end of the ground beam body is located between the connecting plate and the upper fixed block and is slidably connected, a fifth fixing through hole is provided inside the plug-in block, a fourth fixing through hole is provided inside the C-shaped fixed support block and the fixed support plate, the fifth fixing through hole and the fourth fixing through hole are on the same horizontal line, a first fastening bolt is arranged inside the fifth fixing through hole and the fourth fixing through hole, the plug-in block is connected and fixed to the fixed support plate and the C-shaped fixed support block by the first fastening bolt, a third fixing through hole is provided at both ends of the middle fixed block, the third fixing through hole and the second fixing through hole are on the same horizontal line, a second fastening bolt is arranged inside the third fixing through hole and the second fixing through hole, and the middle fixed block is connected and fixed to the ground beam body by the second fastening bolt.

[0007] The top end of the sliding panel also is provided with a plurality of sliding panels, the bottom end of the sliding panel is provided with a plurality of sliding panels, the two sliding panels have the plurality of sliding panels, and the two sliding panels are rotatably connected to the sliding panel.

[0008] A sleeve fixing groove is provided at one end of the sleeve fixing block and at the end away from the second connecting block, wherein the sleeve fixing groove provided in one of the sleeve fixing blocks is clearance-matched with the trapezoidal support plate, and the sleeve fixing groove provided in the other sleeve fixing block is clearance-matched with the square support plate, and sixth fixing through holes are provided on both sides of the sleeve fixing block, and the sixth fixing through holes are on the same horizontal line as the first fixing through holes, and third fastening bolts are arranged inside the sixth fixing through holes and the first fixing through holes, wherein the sleeve fixing groove provided in one of the sleeve fixing blocks is connected and fixed to the trapezoidal support plate by the third fastening bolts, and the sleeve fixing groove provided in the other sleeve fixing block is connected and fixed to the square support plate by the third fastening bolts.

[0009] Preferably, the first column fixing plate and the sliding plate are both fixed by welding, and the second column fixing plate and the sliding plate are both fixed by welding.

[0010] Preferably, the ground beam body is fixed to the upper end of the connection between the ground and the cofferdam.

[0011] Preferably, the ground beam body is a trapezoidal I-shaped ground beam.

[0012] Preferably, mounting bolts are provided inside the fixed installation through holes, the ground beam body is connected and fixed to the ground via the mounting bolts, the ground beam body is connected and fixed to the cofferdam via the mounting bolts, and the mounting bolts are chemical anchor bolts.

[0013] Preferably, a square shim is provided between the lower end of the ground beam body and the cofferdam.

[0014] Preferably, a staggered vertical plate is fixed at the center of the lower end of the ground beam body.

[0015] Preferably, a filler is filled between the lower end of the ground beam body and the ground and the cofferdam, and the filler is a high-performance non-shrinkage grouting material.

[0016] Preferably, a protective plate is fixed to one side of the ground beam body away from the trapezoidal support plate, and the material of the protective plate is an anti-corrosion PP plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention makes the connection between the ground beams more firm through the connection structure design, avoiding the influence on the later construction caused by the connection between the ground beams being not firm enough;

[0019] 2. The present invention adopts a displacement structure design so that the fixed columns can be displaced when they need to be moved, and can be fixed after the displacement operation is completed, so that the structure has better applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are 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 creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a rear view of the structure of the present invention as a whole;

[0023] Figure 3 It is a schematic diagram of the structure of the entire ground beam body of the present invention;

[0024] Figure 4 It is a structural side view of the entire ground beam body of the present invention;

[0025] Figure 5 It is a cross-sectional view of the assembly of the ground beam body, the ground and the cofferdam of the present invention;

[0026] Figure 6 It is a structural expansion diagram of the entire connection structure of the present invention;

[0027] Figure 7 It is a side view of the overall structure development diagram of the connection structure of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the ground beam body and the connection structure of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the displacement structure and the ground beam body of the present invention;

[0030] Fig.10 It is a schematic diagram of the overall structure of the displacement structure of the present invention;

[0031] Fig.11 It is a side view of the overall structural schematic diagram of the displacement structure of the present invention.

[0032] In the figure: 1, ground beam body; 2, sliding plate; 3, plug-in fixing structure; 4, protective plate; 5, trapezoidal support plate; 6, slide rail; 7, sliding slot; 8, first slot; 9, first fixing through hole; 10, fixed installation through hole; 11, square support plate; 12, second fixing through hole; 13, lower fixing block; 14, plug-in slot; 15, C-shaped fixing support block; 16, middle fixing block; 17, third fixing through hole; 18, connecting plate; 19, second slot; 20, fixing support plate; 21 , fourth fixing through hole; 22, upper fixing block; 23, fifth fixing through hole; 24, plug-in block; 25, connecting groove; 26, first column fixing plate; 27, second column fixing plate; 28, first connecting block; 29, second connecting block; 30, sleeve fixing block; 31, sleeve fixing groove; 32, dovetail slide; 33, roller; 34, sixth fixing through hole; 35, mounting bolt; 36, square washer; 37, ground; 38, cofferdam; 39, filler; 40, offset plate. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] See also Figure 1-11 A trapezoidal I-shaped ground beam foundation structure includes a ground beam body 1, a trapezoidal support plate 5, and a square support plate 11. The ground beam body 1 is a trapezoidal I-shaped ground beam, which adopts a trapezoidal I-shaped beam structure, and the bottom large plane is placed on the ground 37, so that the average load is small and the placement is more stable. A staggered vertical plate 40 is fixed at the center of the lower end of the ground beam body 1. The staggered vertical plate 40 avoids horizontal displacement of the ground beam body 1, making the ground beam body 1 more solid;

[0035] A plurality of trapezoidal support plates 5 are located on the inner side of one side of the ground beam body 1, and the trapezoidal support plates 5 and the ground beam body 1 are fixed by welding. A square support plate 11 is located on the inner side of the other side of the ground beam body 1, and the square support plate 11 and the ground beam body 1 are fixed by welding. A protective plate 4 is fixed on the side of the ground beam body 1 away from the trapezoidal support plate 5. The material of the protective plate 4 is an anti-corrosion PP plate. The installation gap of the protective plate 4 is sealed with silicone to avoid acid mist corrosion. The construction steps are simple, and the installation cost is reduced.

[0036] The upper ends of the trapezoidal support plate 5 and the square support plate 11 are both provided with a first fixing through hole 9, the two ends of the ground beam body 1 are both provided with a second fixing through hole 12, and the two sides of the lower end of the ground beam body 1 are both provided with a plurality of fixing installation through holes 10, and the fixing installation through holes 10 are both provided with mounting bolts 35, and the ground beam body 1 is connected and fixed to the ground 37 by the mounting bolts 35, and the ground beam body 1 is connected and fixed to the cofferdam 38 by the mounting bolts 35, and the mounting bolts 35 are chemical anchor bolts, which are a new type of fastening material composed of chemical agents and metal rods, and can be used for the installation of post-embedded parts in various curtain walls and marble dry hanging construction, and can also be used for equipment installation, highway and bridge guardrail installation, building reinforcement and reconstruction and other occasions. The chemical anchor bolts are composed of vinyl resin, quartz particles, and curing agent, and have good acid and alkali resistance, heat resistance, fire resistance, low temperature sensitivity, no expansion and extrusion stress on the substrate, and are suitable for heavy loads and various vibration loads. The installation spacing and margin requirements are small, the installation is fast, and the rapid curing does not affect the construction progress;

[0037] Two slide rails 6 are fixed at the top center of the ground beam body 1. Sliding grooves 7 are provided at the upper end of the ground beam body 1 and on both sides of the slide rails 6. Two first slots 8 are provided at both ends of the upper end of the ground beam body 1. The ground beam body 1 is fixed at the upper end of the connection between the ground 37 and the cofferdam 38, which is convenient for later construction. A square pad 36 is provided between the lower end of the ground beam body 1 and the cofferdam 38, which is convenient for leveling the uneven part between the ground beam body 1 and the cofferdam 38 through the square pad 36, thereby ensuring the horizontality of the ground beam body 1. A filler 39 is filled between the lower end of the ground beam body 1 and the ground 37 and the cofferdam 38. The filler 39 is a high-performance non-shrinkage grouting material, which plays a double protection role in fixing the ground beam body 1 and avoiding acid mist from overflowing from the gap, thereby reducing environmental pollution.

[0038] A lower fixing block 13 and a plug-in fixing structure 3 are fixed between the ground beam body 1 and another ground beam body 1. The plug-in fixing structure 3 is located at the upper end of the lower fixing block 13 and is connected by plugging. The plug-in fixing structure 3 includes an upper fixing block 22 and a plug-in block 24. The plug-in block 24 is located at the lower end of the upper fixing block 22. A connecting groove 25 is opened at the upper end of the lower fixing block 13. A middle fixing block 16 and a connecting plate 18 are fixed between the lower fixing block 13 and the plug-in fixing structure 3 and on both sides of the connecting groove 25. The connecting plate 18 is located at the middle fixing block 16. Two C-shaped fixed support blocks 15 and a fixed support plate 20 are fixed between the lower end of the connecting plate 18 away from one end of the middle fixed block 16 and the upper end of the lower fixed block 13. The fixed support plate 20 is located between the two C-shaped fixed support blocks 15. Two plug-in slots 14 are formed between the C-shaped fixed support block 15 and the fixed support plate 20. Two second slots 19 are provided inside the connecting plate 18. The plug-in slots 14 are located at the lower end of the second slots 19. The lower end of the plug-in block 24 passes through the second slot 19 and is located inside the plug-in slot 14.

[0039] The lower end of the ground beam body 1 is located inside the connecting groove 25 and is slidably connected, the middle part of the ground beam body 1 is located between the two middle fixed blocks 16 and is slidably connected, the upper end of the ground beam body 1 is located between the connecting plate 18 and the upper fixed block 22 and is slidably connected, the plug-in block 24 is provided with a fifth fixing through hole 23, the C-shaped fixed support block 15 and the fixed support plate 20 are provided with a fourth fixing through hole 21, the fifth fixing through hole 23 and the fourth fixing through hole 21 are on the same horizontal line, the fifth fixing through hole 23 and the fourth fixing through hole 21 are provided with a first fastening bolt, the plug-in block 24 is connected and fixed to the fixed support plate 20 and the C-shaped fixed support block 15 by the first fastening bolt, the two ends of the middle fixed block 16 are provided with a third fixing through hole 17, the third fixing through hole 17 and the second fixing through hole 12 are on the same horizontal line, the third fixing through hole 17 and the second fixing through hole 12 are provided with a second fastening bolt, and the middle fixed block 16 is connected and fixed to the ground beam body 1 by the second fastening bolt;

[0040] The upper end of the ground beam body 1 is slidably connected with a sliding plate 2, and a dovetail slot 32 is provided at the lower end of the sliding plate 2. The slide rail 6 is located inside the dovetail slot 32. The lower end of the sliding plate 2 and both sides of the dovetail slot 32 are rotatably connected with a plurality of rollers 33, and the rollers 33 are slidably connected with the sliding slot 7. The upper end of the sliding plate 2 is fixed with a first column fixing plate 26 on both sides, and the upper end of the sliding plate 2 and between the two first column fixing plates 26 are fixed with two second column fixing plates 27. A placement groove for placing a column is formed between the two first column fixing plates 26 and the two second column fixing plates 27. The first column fixing plate 26 and the sliding plate 2 are both fixed by welding, and the second column fixing plate 27 and the sliding plate 2 are both fixed by welding. The connection and fixation are convenient for making the connection between the first column fixing plate 26 and the sliding plate 2 more firmly, and the connection between the second column fixing plate 27 and the sliding plate 2 more firmly. The specific welding method of the first column fixing plate 26 and the sliding plate 2 and the welding method of the second column fixing plate 27 and the sliding plate 2 can be arc welding. Arc welding is the most widely used welding method in industrial production. Its principle is to use the heat generated by arc discharge (commonly known as arc combustion) to melt the welding rod and the workpiece to each other and form a weld after condensation, so as to obtain a welding process of a firm joint. When arc welding low-carbon steel or low-alloy steel, the temperature of the arc center can reach 6000-8000°C, and the temperature of the two electrodes can reach 2400-2600°C.

[0041] The lower ends of both sides of the sliding plate 2 are provided with sleeve fixing blocks 30, and the sliding plate 2 and the sleeve fixing blocks 30 are connected and fixed by the first connecting block 28 and the second connecting block 29, the first connecting block 28 is fixed to the upper end of the sleeve fixing block 30 and fixed by welding, the first connecting block 28 is fixed to both ends of the sliding plate 2 and fixed by welding, and the first connecting block 28 and the second connecting block 29 are connected and fixed by pins;

[0042] A sleeve fixing groove 31 is provided at one end of the sleeve fixing block 30 and at the end away from the second connecting block 29, wherein the sleeve fixing groove 31 provided in one sleeve fixing block 30 is clearance-matched with the trapezoidal support plate 5, and the sleeve fixing groove 31 provided in the other sleeve fixing block 30 is clearance-matched with the square support plate 11, and sixth fixing through holes 34 are provided on both sides of the sleeve fixing block 30, and the sixth fixing through holes 34 are on the same horizontal line as the first fixing through holes 9, and third fastening bolts are arranged inside the sixth fixing through holes 34 and the first fixing through holes 9, wherein the sleeve fixing groove 31 provided in one sleeve fixing block 30 is connected and fixed to the trapezoidal support plate 5 by the third fastening bolts, and the sleeve fixing groove 31 provided in the other sleeve fixing block 30 is connected and fixed to the square support plate 11 by the third fastening bolts.

[0043] Working principle: When in use, the lower end of the ground beam body 1 and the lower end of another ground beam body 1 are inserted into the connecting groove 25 opened by the lower fixing block 13, so that the middle parts of the two ground beam bodies 1 follow and enter between the two middle fixing blocks 16, and then the plug-in fixing structure 3 and the connecting plate 18 are plugged in, so that the plug-in block 24 passes through the first slot 8 and the second slot 19 and enters the inside of the plug-in slot 14, and the plug-in fixing structure 3 is fixed to the fixed support plate 20 and the C-shaped fixed support block 15 through the first fastening bolt passing through the fourth fixing through hole 21 and the fifth fixing through hole 23, and the ground beam body 1 is connected and fixed to the middle fixing block 16 through the second fastening bolt passing through the third fixing through hole 17 and the second fixing through hole 12, so that the two ground beam bodies 1 are fixed. Through the design of the connection structure, the connection between the ground beams is more firm, avoiding the influence on the later construction caused by the connection between the ground beams being not firm enough;

[0044] When it is necessary to move the column at the upper end of the sliding plate 2, the third fixing bolt is removed so that the sleeve fixing block 30 can be moved away from the outside of the trapezoidal support plate 5 and the square support plate 11, and then the sleeve fixing block 30 is lifted and the sliding plate 2 is moved, and the sliding plate 2 is moved to the appropriate position of the trapezoidal support plate 5 and the square support plate 11, and then the sleeve fixing block 30 is lowered to sleeve the sleeve fixing groove 31 on the outside of the trapezoidal support plate 5 and the square support plate 11, and then the third fixing bolt is reset and fixed to complete the displacement operation of the column. Through the displacement structure design, the fixed column can be displaced when it needs to be moved, and can be fixed after the displacement operation is completed, so that the structure has better applicability.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A trapezoidal I-shaped ground beam foundation structure, comprising a ground beam body (1), a trapezoidal support plate (5), and a square support plate (11), characterized in that: The trapezoidal support plate (5) is located on the inner side of one side of the ground beam body (1), and the trapezoidal support plate (5) and the ground beam body (1) are both connected and fixed by welding. The square support plate (11) is located on the inner side of the other side of the ground beam body (1), and the square support plate (11) and the ground beam body (1) are both connected and fixed by welding. The upper ends of the trapezoidal support plate (5) and the square support plate (11) are both provided with a first fixing through hole (9), and both ends of the ground beam body (1) are provided with a second fixing through hole (12). Both sides of the lower end of the ground beam body (1) are provided with a plurality of fixing installation through holes (10). Two slide rails (6) are fixed at the center of the top end of the ground beam body (1), and sliding grooves (7) are provided at the upper end of the ground beam body (1) and on both sides of the slide rails (6). Both ends of the upper end of the ground beam body (1) are provided with two first slots (8); A lower fixing block (13) and a plug-in fixing structure (3) are fixed between the ground beam body (1) and another ground beam body (1); the plug-in fixing structure (3) is located at the upper end of the lower fixing block (13) and is connected by plugging; the plug-in fixing structure (3) comprises an upper fixing block (22) and a plug-in block (24); the plug-in block (24) is located at the lower end of the upper fixing block (22); a connecting groove (25) is provided at the upper end of the lower fixing block (13); a middle fixing block (16) and a connecting plate (18) are fixed between the lower fixing block (13) and the plug-in fixing structure (3) and on both sides of the connecting groove (25); the connecting plate (18) is located at the middle fixing block The upper end of the middle fixed block (16), two C-shaped fixed support blocks (15) and a fixed support plate (20) are fixed between the lower end of the connecting plate (18) away from one end of the middle fixed block (16) and the upper end of the lower fixed block (13), the fixed support plate (20) is located between the two C-shaped fixed support blocks (15), two plug-in slots (14) are formed between the C-shaped fixed support block (15) and the fixed support plate (20), two second slots (19) are provided inside the connecting plate (18), the plug-in slots (14) are located at the lower end of the second slots (19), and the lower end of the plug-in block (24) passes through the second slot (19) and is located inside the plug-in slot (14); The lower end of the ground beam body (1) is located inside the connection groove (25) and is slidably connected. The middle part of the ground beam body (1) is located between the two middle fixing blocks (16) and is slidably connected. The upper end of the ground beam body (1) is located between the connection plate (18) and the upper fixing block (22) and is slidably connected. The plug-in block (24) is provided with a fifth fixing through hole (23). The C-shaped fixing support block (15) and the fixing support plate (20) are provided with a fourth fixing through hole (21). The fifth fixing through hole (23) and the fourth fixing through hole (21) are on the same horizontal line. The fifth fixing through hole (23) and the fourth fixing through hole (21) are provided with first fastening bolts, the plug-in block (24) is connected and fixed to the fixing support plate (20) and the C-shaped fixing support block (15) by means of the first fastening bolts, both ends of the middle fixing block (16) are provided with third fixing through holes (17), the third fixing through holes (17) and the second fixing through holes (12) are on the same horizontal line, the third fixing through holes (17) and the second fixing through holes (12) are provided with second fastening bolts, and the middle fixing block (16) is connected and fixed to the ground beam body (1) by means of the second fastening bolts.

2. A trapezoidal I-beam foundation structure according to claim 1, characterized in that: The upper end of the ground beam body (1) is slidably connected to a sliding plate (2), the lower end of the sliding plate (2) is provided with a dovetail slot (32), the sliding rail (6) is located inside the dovetail slot (32), the lower end of the sliding plate (2) and both sides of the dovetail slot (32) are rotatably connected to a plurality of rollers (33), the rollers (33) and the sliding slot (7) are slidably connected, the upper end of the sliding plate (2) is fixed with first column fixing plates (26), the upper end of the sliding plate (2) and between the two first column fixing plates (26) are fixed with two second column fixing plates (27), the two first column fixing plates (27) are fixed with two first column fixing plates (26), and the two first column fixing plates (27) are fixed with two first column fixing plates (26). A placement groove for placing a column is formed between the column fixing plate (26) and the two second column fixing plates (27); sleeve fixing blocks (30) are provided at the lower ends of both sides of the sliding plate (2); the sliding plate (2) and the sleeve fixing blocks (30) are connected and fixed via a first connecting block (28) and a second connecting block (29); the first connecting block (28) is fixed to the upper end of the sleeve fixing block (30) and fixed by welding; the first connecting block (28) is fixed to both ends of the sliding plate (2) and fixed by welding; the first connecting block (28) and the second connecting block (29) are connected and fixed by pins; A sleeve fixing groove (31) is provided at one end of the sleeve fixing block (30) and at one end away from the second connecting block (29); the sleeve fixing groove (31) provided on one of the sleeve fixing blocks (30) is clearance-matched with the trapezoidal support plate (5); the sleeve fixing groove (31) provided on the other sleeve fixing block (30) is clearance-matched with the square support plate (11); a sixth fixing through hole (34) is provided on both sides of the sleeve fixing block (30); the sixth fixing through hole (34) and the first fixing through hole (9) are on the same horizontal line; third fastening bolts are provided inside the sixth fixing through hole (34) and the first fixing through hole (9); the sleeve fixing groove (31) provided on one of the sleeve fixing blocks (30) is connected and fixed to the trapezoidal support plate (5) by means of the third fastening bolts; the sleeve fixing groove (31) provided on the other sleeve fixing block (30) is connected and fixed to the square support plate (11) by means of the third fastening bolts.

3. The trapezoidal I-beam foundation structure according to claim 2, characterized in that: The first column fixing plate (26) and the sliding plate (2) are both fixed by welding, and the second column fixing plate (27) and the sliding plate (2) are both fixed by welding.

4. The trapezoidal I-beam foundation structure according to claim 1, characterized in that: The ground beam body (1) is fixed to the upper end of the connection between the ground (37) and the cofferdam (38).

5. The trapezoidal I-beam foundation structure according to claim 1, characterized in that: The ground beam body (1) is a trapezoidal I-shaped ground beam.

6. The trapezoidal I-beam foundation structure according to claim 4, characterized in that: The fixing installation through holes (10) are each provided with installation bolts (35), the ground beam body (1) is connected and fixed to the ground (37) via the installation bolts (35), and the ground beam body (1) is connected and fixed to the cofferdam (38) via the installation bolts (35), and the installation bolts (35) are chemical anchor bolts.

7. The trapezoidal I-beam foundation structure according to claim 4, characterized in that: A square iron pad (36) is provided between the lower end of the ground beam body (1) and the cofferdam (38).

8. The trapezoidal I-beam foundation structure according to claim 1, characterized in that: A displaced vertical plate (40) is fixed at the center of the lower end of the ground beam body (1).

9. The trapezoidal I-beam foundation structure according to claim 1, characterized in that: A filler (39) is filled between the lower end of the ground beam body (1), the ground (37) and the cofferdam (38), and the filler (39) is a high-performance non-shrinkage grouting material.

10. The trapezoidal I-beam foundation structure according to claim 1, characterized in that: A protective plate (4) is fixed to the side of the ground beam body (1) away from the trapezoidal support plate (5), and the material of the protective plate (4) is an anti-corrosion PP plate.

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