Riverway steel pipe pile platform for automobile crane outrigger foundation

Abstract

This utility model discloses a riverbed steel pipe pile platform for truck crane outrigger foundations, belonging to the field of temporary construction engineering technology. It aims to solve the problems of difficult installation and alignment, low efficiency, and insufficient overall rigidity of existing platforms. A limiting block with a groove is set on the top of the second double-section steel section, which slides in cooperation with the trapezoidal block at the bottom of the roadbed box, achieving rapid self-locking positioning of the roadbed box. A detachable clamping mechanism, consisting of upper and lower clamping plates, threaded columns, nuts, and upper and lower inner support blocks embedded in the internal gaps of the double-section steel section to prevent deformation, is used to clamp and secure the second double-section steel section, binding the parallel steel sections into a high-strength whole, significantly enhancing the platform's bending and torsional resistance. This utility model has the beneficial effects of convenient installation, accurate positioning, stable structure, and strong load-bearing capacity.

Description

Technical Field

[0001] This utility model relates to the field of temporary building engineering technology, and in particular to a steel structure platform and its supporting structure for water operations. Background Technology

[0002] In water-based engineering projects such as bridge construction, dock repair, or hydrological exploration, it is often necessary to build temporary work platforms above the water surface of rivers or lakes to facilitate the passage and operation of construction personnel, machinery, and materials.

[0003] A common method for constructing temporary platforms is as follows: first, steel pipe piles are driven into the riverbed as foundation piles; then, H-beams or I-beams are laid on top of the steel pipe piles to form the load-bearing support frame of the platform; finally, roadbed boxes or thick steel plates are laid on the support frame to form a usable platform surface. This structure is effective in providing basic load-bearing capacity.

[0004] However, in actual construction, the traditional erection method has gradually revealed its inherent shortcomings. During the installation phase, using lifting equipment to hoist the heavy roadbed boxes and accurately place them on the steel support frame below is a difficult operation. Due to the limited width of the top surface of the supporting steel and the large size and weight of the roadbed boxes, the alignment process is slow and completely depends on the experience of the operators and on-site command. The slightest carelessness may cause the roadbed boxes to be unstable or slip off the steel, posing a serious safety hazard.

[0005] When such temporary platforms are used as foundations for heavy lifting equipment such as truck cranes, the requirements for the overall stability and rigidity of the platform become extremely stringent. The outriggers of the truck crane generate huge localized concentrated loads on the platform below, and complex dynamic forces and torsional loads are generated during lifting and slewing operations. For traditional platform structures, the parallel double-section steel sections do not form a solid whole; they are more like independent load-bearing structures when under stress, and their ability to resist torsional deformation is weak. The roadbed box is also placed on the steel sections by gravity. The entire platform lacks sufficient overall rigidity and is prone to swaying, deformation, or uneven settlement under dynamic loads, which directly threatens the safety and stability of lifting operations.

[0006] To address these issues, a riverbed steel pipe pile platform for truck crane outrigger foundations is proposed. Utility Model Content

[0007] In view of the problems existing in the river steel pipe pile platform used for truck crane outrigger foundations, such as difficulty in installation and alignment, low efficiency and safety hazards of slippage, as well as insufficient overall structural rigidity and poor stability when bearing heavy loads, this utility model aims to provide a river steel pipe pile platform with an improved structure that can effectively solve the above problems for truck crane outrigger foundations.

[0008] This utility model provides a riverbed steel pipe pile platform for truck crane outrigger foundation, comprising: steel pipe column, first double-section steel, second double-section steel and roadbed box; and limiting block, trapezoidal block, slot, lower clamping plate, upper clamping plate, upper inner support block, lower inner support block, threaded column, lower nut and upper nut.

[0009] The limiting block has a slot, and the trapezoidal block is located at the bottom of the roadbed box.

[0010] The limiting block is fixedly installed on the top of the second double-section steel, the periphery of the roadbed box is placed inside the limiting block, and the trapezoidal block slides in conjunction with the slot. The upper and lower clamping plates are respectively attached to the upper and lower outer walls of the second double-section steel, the upper and lower inner support blocks are embedded in the internal gaps of the second double-section steel, the threaded column passes through the upper and lower clamping plates in sequence, and the upper and lower nuts are respectively screwed to the two ends of the threaded column.

[0011] Preferably, the second double-section steel is composed of two steel sections arranged side by side, and the upper inner support block and the lower inner support block are fitted into the gap between the two side by side steel sections.

[0012] Preferably, the upper and lower surfaces of the upper inner support block and the lower inner support block abut against the upper and lower inner walls of the second double-section steel.

[0013] Preferably, both the upper clamping plate and the lower clamping plate are plate-shaped structures adapted to the flange shape of the second double-section steel.

[0014] Preferably, by tightening the upper nut and / or the lower nut, the upper clamping plate and the lower clamping plate are pulled closer to clamp the second double-section steel.

[0015] Preferably, the axis of the threaded column is perpendicular to the length direction of the second double-section steel.

[0016] Preferably, the limiting block is fixed to the surface of the upper flange plate of the second double-section steel by welding.

[0017] Preferably, the trapezoidal block has a trapezoidal cross-sectional shape, and the slot has an inverted trapezoidal cross-sectional shape that matches the trapezoidal block.

[0018] This utility model has the following beneficial effects: 1. In this utility model, a quick positioning mechanism is formed by setting a limiting block and a slot on the top of the supporting steel and setting a trapezoidal block at the bottom of the roadbed box to cooperate with it. During the installation process, the roadbed box can automatically slide into the predetermined position and be locked immediately by its own weight, which effectively prevents the platform from accidentally sliding and falling off in the early stage of installation, and greatly improves construction efficiency and on-site operation safety.

[0019] 2. In this utility model, by adding a set of upper and lower clamping plates, threaded columns, nuts and a detachable clamping mechanism, a strong clamping force can be applied to the main load-bearing steel after the platform is installed in place, which significantly enhances the bending and torsional resistance of the entire platform, enabling it to safely and stably withstand the huge and dynamic loads brought by heavy equipment such as truck crane outriggers, and meet the high standard load-bearing requirements. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a riverbed steel pipe pile platform for the outrigger foundation of a truck crane, as proposed in this utility model. Figure 2 This is a schematic diagram of a limiting block structure for a riverbed steel pipe pile platform used as a truck crane outrigger foundation, as proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This utility model provides a schematic diagram of the clamping plate structure for a riverbed steel pipe pile platform used as a truck crane outrigger foundation. Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0021] Legend: 1. Steel pipe column; 2. First double-section steel section; 3. Second double-section steel section; 301. Lower clamping plate; 302. Upper clamping plate; 303. Upper inner support block; 304. Lower inner support block; 305. Threaded column; 306. Lower nut; 307. Upper nut; 4. Roadbed box; 401. Limiting block; 402. Trapezoidal block; 403. Slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-5This utility model provides an embodiment of a riverbed steel pipe pile platform for truck crane outrigger foundations, which aims to solve the technical problems of inconvenient installation, inaccurate positioning, easy slippage, and insufficient overall stability of existing riverbed temporary platforms.

[0024] like Figure 1 As shown, the riverbed steel pipe pile platform for the outrigger foundation of a truck crane includes a steel pipe column 1, a first double-section steel section 2, a second double-section steel section 3, and a roadbed box 4. The lower end of the steel pipe column 1 is vertically buried in the riverbed soil, providing stable pile foundation support for its superstructure.

[0025] The first double-section steel 2 and the second double-section steel 3 are fixedly connected to the upper end of the steel pipe column 1 by welding or bolts. The first double-section steel 2 and the second double-section steel 3 are set parallel or perpendicular to each other, forming a flat and sturdy top support frame. The roadbed box 4 is detachably placed on top of the second double-section steel 3 as a load-bearing platform.

[0026] In this embodiment, the platform also includes a positioning mechanism for rapid positioning and a clamping mechanism for enhancing stability; The positioning mechanism includes a limiting block 401, a trapezoidal block 402, and a slot 403. The limiting block 401 is fixedly connected to the upper flange plate of the second double-section steel 3 by welding to limit the placement range of the roadbed box 4. The limiting block 401 has a slot 403 with a cross-sectional shape that is wider at the top and narrower at the bottom. The trapezoidal block 402 is fixedly connected to the bottom of the roadbed box 4 and has a cross-sectional shape that is narrower at the top and wider at the bottom, which matches the slot 403. During installation, the periphery of the roadbed box 4 is placed in the internal space of the limiting block 401. At the same time, the trapezoidal block 402 and the slot 403 slide together, so that the roadbed box 4 can slide in quickly and lock itself in place under its own weight. The clamping mechanism includes a lower clamping plate 301, an upper clamping plate 302, an upper inner support block 303, a lower inner support block 304, a threaded column 305, a lower nut 306, and an upper nut 307. The second double-section steel 3 is composed of two steel sections arranged side by side along their length, and a through internal gap is formed between the two side by side steel sections.

[0027] Both the upper clamping plate 302 and the lower clamping plate 301 are plate-shaped structures. Their inner contact surfaces are constructed to match the outer surface contours of the upper and lower flanges of the second double-section steel 3 in order to increase the contact area. The upper clamping plate 302 and the lower clamping plate 301 are respectively attached to the upper and lower outer walls of the second double-section steel 3. The upper inner support block 303 and the lower inner support block 304 are two independent block structures that are fitted together in the internal gap of the second double-section steel 3. The upper surface of the upper inner support block 303 abuts against the lower inner wall of the top flange of the second double-section steel 3, and the lower surface of the lower inner support block 304 abuts against the upper inner wall of the bottom flange of the second double-section steel 3. These two inner support blocks are used to apply a reverse support force to the flange of the second double-section steel 3 from the inside when clamping, so as to prevent it from bending and deforming under pressure. The axis of the threaded post 305 is perpendicular to the length of the second double-section steel 3, and it passes through the upper clamping plate 302 and the lower clamping plate 301 in sequence. The upper nut 307 and the lower nut 306 are screwed to the upper and lower ends of the threaded post 305, respectively. The first double-section steel section 2 and the second double-section steel section 3 can be made of standard H-beams or I-beams in this field. Their specific specifications and models can be selected according to actual load-bearing requirements. This is a well-known technology in this field and will not be elaborated here.

[0028] Working principle: The lower ends of several steel pipe columns 1 are driven vertically into the riverbed soil, using the soil to provide stable support. Then, the first double-section steel 2 and the second double-section steel 3 are fixedly connected to the upper end of the steel pipe columns 1 to form a flat and sturdy top support frame.

[0029] The roadbed box 4 is hoisted to the top of the second double-section steel 3 using hoisting equipment and slowly lowered. During the lowering process, the trapezoidal block 402 at the bottom of the roadbed box 4 will first come into contact with the limiting block 401 fixed at the top of the second double-section steel 3. Under the action of the roadbed box 4's own weight, the trapezoidal block 402 will slide along a guide surface (not shown) or directly into the slot 403 opened on the limiting block 401. Since the cross-sectional shape of the trapezoidal block 402 and the slot 403 are compatible, a stable engagement is formed once they enter, effectively preventing the roadbed box 4 from being lifted vertically or sliding horizontally. At the same time, the four edges of the roadbed box 4 fall completely into the internal space formed by the limiting block 401, thereby achieving precise positioning of the roadbed box 4 in four horizontal directions. No complicated alignment and fastening operations are required, realizing the rapid and accurate laying of the platform.

[0030] When the platform needs to withstand huge and dynamic concentrated loads such as those from the outriggers of a truck crane, the clamping mechanism is activated for reinforcement. First, the lower clamping plate 301 is attached to the bottom outer wall of the second double-section steel 3, and the upper clamping plate 302 is attached to its top outer wall. Then, the upper inner support block 303 and the lower inner support block 304 are fitted from the side into the gap formed by two parallel steel sections inside the second double-section steel 3, so that the upper and lower surfaces of the inner support blocks abut against the upper and lower inner surfaces of the second double-section steel 3, respectively. Then, threaded posts 305 are passed through the upper clamping plate 302 and the lower clamping plate 301 from top to bottom. Finally, upper nuts 307 and lower nuts 306 are tightened at both ends of threaded posts 305. The tightening process will forcefully pull the upper and lower clamping plates closer together, thereby generating a huge clamping force on the upper and lower flanges of the second double-section steel 3. At this time, the upper inner support block 303 and the lower inner support block 304 effectively prevent the second double-section steel 3 from deforming inward under the external clamping force. Ultimately, the two steel sections that were originally set side by side are fastened into a more rigid integral structure, which greatly improves the platform's bending resistance, torsional resistance and overall stability.

Claims

1. A riverbed steel pipe pile platform for truck crane outrigger foundations, comprising: Steel pipe column (1), the lower end of which is buried in the riverbed mud; The first double-section steel (2) and the second double-section steel (3) are arranged at the upper end of the steel pipe column (1); Roadbed box (4), the roadbed box (4) is set on top of the second double-section steel (3); Its features include: a limiting block (401), a trapezoidal block (402), a slot (403), a lower clamping plate (301), an upper clamping plate (302), an upper inner support block (303), a lower inner support block (304), a threaded column (305), a lower nut (306), and an upper nut (307); The limiting block (401) is fixedly installed on the top of the second double-section steel (3), and the limiting block (401) is provided with a slot (403); the trapezoidal block (402) is installed at the bottom of the roadbed box (4), and the periphery of the roadbed box (4) is placed inside the limiting block (401), and the trapezoidal block (402) slides in cooperation with the slot (403); The upper clamping plate (302) and the lower clamping plate (301) are respectively attached to the upper and lower outer walls of the second double-section steel (3), the upper inner support block (303) and the lower inner support block (304) are embedded in the internal gap of the second double-section steel (3), the threaded column (305) passes through the upper clamping plate (302) and the lower clamping plate (301) in sequence, and the upper nut (307) and the lower nut (306) are respectively screwed to both ends of the threaded column (305).

2. The river channel steel pipe pile platform for truck crane outrigger foundation as described in claim 1, characterized in that: The second double-section steel (3) is composed of two steel sections arranged side by side, and the upper inner support block (303) and the lower inner support block (304) are fitted into the gap between the two steel sections arranged side by side.

3. A river channel steel pipe pile platform for truck crane outrigger foundation as described in claim 1, characterized in that: The upper and lower surfaces of the upper inner support block (303) and the lower inner support block (304) respectively abut against the upper and lower inner walls of the second double-section steel (3).

4. A river channel steel pipe pile platform for truck crane outrigger foundation as described in claim 1, characterized in that: Both the upper clamping plate (302) and the lower clamping plate (301) are plate-shaped structures adapted to the flange shape of the second double-section steel (3).

5. A river channel steel pipe pile platform for truck crane outrigger foundation as described in claim 1, characterized in that: By tightening the upper nut (307) and / or the lower nut (306), the upper clamping plate (302) and the lower clamping plate (301) are pulled closer to clamp the second double-section steel (3).

6. A river channel steel pipe pile platform for truck crane outrigger foundation as described in claim 1, characterized in that: The axis of the threaded column (305) is perpendicular to the length direction of the second double-section steel (3).

7. A river channel steel pipe pile platform for truck crane outrigger foundation as described in claim 1, characterized in that: The limiting block (401) is fixed to the surface of the upper flange plate of the second double-section steel (3) by welding.

8. A river channel steel pipe pile platform for truck crane outrigger foundation as described in claim 1, characterized in that: The trapezoidal block (402) has a trapezoidal cross-sectional shape, and the slot (403) has an inverted trapezoidal cross-sectional shape that is adapted to the trapezoidal block (402).

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