Steel platform structure with tower crane foundation on water and installation method thereof

Abstract

The application provides a water steel platform structure with a tower crane foundation, comprising a plurality of vertically and spaced steel pipe piles, a plurality of flat connection steel beams arranged between the steel pipe piles, a pile cap arranged at the top end of each steel pipe pile, a main cross beam arranged on the pile cap, a Bailey frame connected between each main cross beam, a platform panel arranged on the upper side of the Bailey frame, and a tower crane foundation connected with the end of the Bailey frame, thereby solving the problem of poor stability of the tower crane foundation of the water steel platform.

Description

Technical Field

[0001] This invention relates to the field of floating steel platforms, and in particular to a floating steel platform structure with a tower crane foundation and its installation method. Background Technology

[0002] With the continuous development of bridge construction in my country, the size of main pier foundations is also getting larger and larger. For main pier foundations constructed in water, temporary steel platforms must be erected to complete the construction of bored piles.

[0003] To complete the entire construction process, various lifting equipment needs to be installed on the temporary steel platform. Tower cranes are commonly used for material hoisting and the main tower superstructure, and are a frequently used type of lifting equipment. Currently, tower crane foundations generally need to be set up separately, with pile foundations, beams, etc., independent of other parts of the steel platform. This results in a lack of stability and is also relatively complicated to install. Summary of the Invention

[0004] This invention provides a floating steel platform structure with a tower crane foundation and its installation method, which solves the problem of poor stability of the tower crane foundation of the floating steel platform with independent pile foundation.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a steel platform structure on water with a tower crane foundation, comprising multiple vertically spaced steel pipe piles, multiple horizontal connecting steel beams between the steel pipe piles, a pile cap at the top of each steel pipe pile, a main crossbeam on the pile cap, a Bailey bridge connecting the main crossbeams, a platform panel on the upper side of the Bailey bridge, and a tower crane foundation, wherein the end of the Bailey bridge or the platform panel is connected to the tower crane foundation.

[0006] In the preferred embodiment, the main crossbeam is hollow near both ends, and the two ends of the main crossbeam are provided with extended corbel plates near the lower end. The corbel plates are provided with main longitudinal beams, and one end of the main longitudinal beam is connected to the end of the corbel plate. The tower crane foundation includes a plug beam and a tower crane foundation frame. The lower end of the plug beam abuts against the main longitudinal beam, and the end of the plug beam is inserted into the main crossbeam. The plug beam and the main crossbeam are detachably connected.

[0007] In a preferred embodiment, the tower crane foundation also includes a support frame column, which is fitted into the tower crane foundation frame. The top of the support frame column is provided with a top seat for placing the crane.

[0008] In the preferred embodiment, the lower end of the supporting frame column is provided with an extension support, and the lower end of the extension support is provided with a buoyancy platform, which is placed underwater.

[0009] In the preferred embodiment, the supporting frame column includes at least four vertically arranged inner frame columns, the tower crane foundation frame is a rectangular frame structure, and at least four corners of the inner side of the tower crane foundation frame are provided with rotatable guide wheels. The guide wheels are V-shaped wheels and roll against the outer wall of the inner frame columns.

[0010] In the preferred embodiment, a fixed plate frame is provided on the supporting frame column, and a clamping column is provided at both ends of the fixed plate frame. A hook plate is provided on the tower crane foundation frame, and the hook plate hooks downward to the clamping column.

[0011] In the preferred embodiment, a Bailey bridge connecting beam is provided on the side of the main crossbeam on the pile cap, and the two ends of the Bailey bridge are located on the Bailey bridge connecting beam and welded to the Bailey bridge connecting beam.

[0012] In the preferred embodiment, the Bailey bridge is provided with multiple parallel and spaced distribution beams, and the platform panel is welded to each distribution beam.

[0013] In the preferred embodiment, a main platform is also provided, with one end of the main platform connected to the Bailey bridge, and the tower crane foundation is set on the platform panel.

[0014] The preferred solution includes the installation method:

[0015] Each steel structure component is prefabricated in the factory and then transported to the construction site.

[0016] Steel pipe piles were driven into the ground using a piling vessel. After construction was completed, the piles were connected to the surrounding temporary steel platform using a horizontal steel beam and a Ctrip (a type of steel beam) to enhance stability.

[0017] A pile cap is welded to the top of the steel pipe pile. The elevation and plane position of the pile cap need to be laid out on site after preparation of the measurement to meet the accuracy requirements of the beam system installation.

[0018] The main crossbeam is hoisted and placed above the steel pipe pile using hoisting equipment, thus completing the connection between the main crossbeam and the pile cap.

[0019] Weld bracket plates to the ends of the main crossbeams, hoist the main longitudinal beams, place the main longitudinal beams on the bracket plates, and fix them by bolts or welding.

[0020] Install Bailey bridge connecting beams on both sides of the main crossbeam on the pile cap, and place both ends of the Bailey bridge on the Bailey bridge connecting beams and fix them in place.

[0021] Multiple distribution beams are installed on the upper side of the main crossbeam and the upper side of the Bailey bridge, and platform panels are laid on the distribution beams.

[0022] Insert the plug beam on one side of the tower crane foundation frame into the end of the main cross beam, with the lower end of the plug beam abutting against the main longitudinal beam.

[0023] The beneficial effects of this invention are as follows: the tower crane foundation is connected to the main crossbeam in a plug-in manner and overlaps the main longitudinal beam, resulting in strong stability; the tower crane foundation adopts a detachable structure that is plugged into the end of the main crossbeam, making it convenient to change the installation position; a buoyancy platform is set at the lower end of the tower crane foundation, which can offset the eccentric load force generated by its own gravity on the platform, and the tower crane foundation can be easily towed to a new docking position by a ship around the platform, facilitating the disassembly, assembly, and repositioning of the tower crane foundation frame plug-in beam. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 The installation sequence of this invention Figure 1 .

[0026] Figure 2 The installation sequence of this invention Figure 2 .

[0027] Figure 3 The installation sequence of this invention Figure 3 .

[0028] Figure 4 The installation sequence of this invention Figure 4 .

[0029] Figure 5 The installation sequence of this invention Figure 5 .

[0030] Figure 6 The installation sequence of this invention Figure 6 .

[0031] Figure 7 The installation sequence of this invention Figure 7 .

[0032] Figure 8 The installation sequence of this invention Figure 8 .

[0033] Figure 9 The installation sequence of this invention Figure 9 .

[0034] Figure 10 This is a structural diagram of the tower crane foundation frame of the present invention.

[0035] Figure 11 This is a connection diagram of the tower crane foundation frame and the supporting frame column of the present invention.

[0036] Figure 12 This is a diagram illustrating an embodiment of the present invention using the platform as a foundation support for a tower crane.

[0037] In the diagram: 1. Steel pipe pile; 2. Horizontal steel beam; 3. Pile cap; 4. Main crossbeam; 5. Corbel plate; 6. Main longitudinal beam; 7. Bailey bridge connecting beam; 8. Bailey bridge; 9. Distribution beam; 10. Platform panel; 11. Inserted beam; 12. Tower crane foundation frame; 13. Hook plate; 1301. Guide wheel; 1302. Support frame column; 14. Fixed plate frame; 1401. Column clamp; 1402. Inner frame column; 1403. Connecting bolt; 15. Extension support; 16. Buoyancy platform; 17. Top seat; 18. Crane; 19. Main platform; 20. Detailed Implementation

[0038] Example 1:

[0039] like Figure 1-11 In the present invention, a steel platform structure for floating water with a tower crane foundation includes multiple vertically spaced steel pipe piles 1, multiple horizontally connected steel beams 2 between the steel pipe piles 1, a pile cap 4 at the top of each steel pipe pile 1, a main crossbeam 5 on the pile cap 4, a Bailey bridge 9 connected between each main crossbeam 5, a platform panel 11 on the upper side of the Bailey bridge 9, and a tower crane foundation connected to the end of the Bailey bridge 9.

[0040] Multiple reinforcing beams 3 are installed between the steel pipe piles 1 and the horizontal connecting steel beams 2 to make the entire steel pile foundation more stable.

[0041] In the preferred embodiment, the main crossbeam 5 is hollow near both ends, and the two ends of the main crossbeam 5 are provided with extended corbel plates 6 near the lower end. The corbel plates 6 are provided with main longitudinal beams 7, and one end of the main longitudinal beam 7 is connected to the end of the corbel plate 6. The tower crane foundation includes a plug beam 12 and a tower crane foundation frame 13. The lower end of the plug beam 12 abuts against the main longitudinal beam 7, and the end of the plug beam 12 is inserted into the main crossbeam 5. The plug beam 12 and the main crossbeam 5 are detachably connected.

[0042] After the insertion beam 12 is inserted into the end of the main crossbeam 5, the main crossbeam 5 and the insertion beam 12 are locked together by connecting bolts 15. The lower end of the main longitudinal beam 7 and the insertion beam 12 are also locked together by connecting bolts 15. The inner wall of the main crossbeam 5 and the main longitudinal beam 7 together provide support for the tower crane foundation, improving the connection strength.

[0043] In a preferred embodiment, the tower crane foundation also includes a support frame column 14, which is sleeved with the tower crane foundation frame 13. The top of the support frame column 14 is provided with a top seat 18, which is used to place the crane 19.

[0044] The tower crane foundation frame 13 is a hollow frame structure. The supporting frame column 14 is inserted into the tower crane foundation frame 13. The tower crane foundation frame 13 and the supporting frame column 14 can be locked after the height of the crane 19 is adjusted.

[0045] In the preferred embodiment, the lower end of the supporting frame column 14 is provided with an extension support 16, and the lower end of the extension support 16 is provided with a buoyancy platform 17, which is placed underwater.

[0046] The extension support 16 is supported by a hollow closed steel cylinder, and the buoyancy platform 17 is equipped with a number of hollow pontoons. The total buoyancy lifts the support frame column 14 and the crane 19, balancing the self-weight of the tower crane mechanism.

[0047] In a preferred embodiment, the supporting frame column 14 includes at least four vertically arranged inner frame columns 1403, the tower crane foundation frame 13 is a rectangular frame structure, and at least four corners of the inner side of the tower crane foundation frame 13 are provided with rotatable guide wheels 1302. The guide wheels 1302 are V-shaped wheels and roll against the outer wall of the inner frame column 1403.

[0048] The inner frame column 1403 is made of angle steel, square steel or round steel. The V-shaped surface of the guide wheel 1302 is close to the outer wall of the inner frame column 1403. The four guide wheels 1302 are locked in place with the support frame column 14, so that the support frame column 14 can move up and down within the tower crane foundation frame 13, which facilitates the adjustment of the height of the crane 19.

[0049] In the preferred embodiment, a fixed plate frame 1401 is provided on the supporting frame column 14, and a clamping column 1402 is provided at both ends of the fixed plate frame 1401. A hook plate 1301 is provided on the tower crane foundation frame 13, and the hook plate 1301 hooks downward to the clamping column 1402.

[0050] The fixed plate frame 1401 is welded to the side wall of the support frame column 14. At least two can be installed on the outer wall of the support frame column 14, or one can be installed on each side. After the height of the crane 19 is adjusted, the hook plate 1301 can be welded to the inner wall of the support frame column 14 and hooked onto the clamping column 1402. The total buoyancy generated by the extension support 16 and the buoyancy platform 17 is slightly less than the self-weight of the tower crane, so that the hook plate 1301 can be stably clamped at the clamping column 1402. After the hooking is completed, this part can be welded to fix it.

[0051] In the preferred embodiment, a Bailey bridge connecting beam 8 is provided on the side of the main crossbeam 5 on the pile cap 4, and the two ends of the Bailey bridge 9 are provided on the Bailey bridge connecting beam 8 and welded to the Bailey bridge connecting beam 8.

[0052] The Bailey bridge connecting beam 8 can compensate for the height difference between the main crossbeam 5 and the Bailey bridge 9, so that the forces at both ends of the Bailey bridge 9 can be ultimately transferred to the pile cap 4. The use of a bottom support method makes it more reliable.

[0053] In the preferred embodiment, the Bailey bridge 9 is provided with multiple parallel and spaced distribution beams 10, and the platform panel 11 is welded to each distribution beam 10.

[0054] In the preferred scheme,

[0055] Each steel structure component is prefabricated in the factory and then transported to the construction site.

[0056] Steel pipe piles 1 were driven into the ground using a piling vessel. After construction was completed, steel pipe piles 1 were connected to the surrounding temporary steel platform using flat steel beams 2 and 3 to enhance stability.

[0057] A pile cap 4 is welded to the top of the steel pipe pile 1. The elevation and plane position of the pile cap 4 need to be laid out on site after the prepared measurement to meet the accuracy requirements of the beam system installation.

[0058] Hoist the main crossbeam 5 and hoist it above the steel pipe pile 1 using hoisting equipment to complete the connection between the main crossbeam 5 and the pile cap 4.

[0059] Weld bracket plates 6 to the ends of the main crossbeam 5, hoist the main longitudinal beam 7, place the main longitudinal beam 7 on the bracket plates 6, and fix it by bolts or welding.

[0060] Install Bailey bridge connecting beams 8 on both sides of the main crossbeam 5 on the pile cap 4, and place the two ends of the Bailey bridge 9 on the Bailey bridge connecting beams 8 and fix them in place.

[0061] Multiple distribution beams 10 are installed on the upper side of the main crossbeam 5 and the upper side of the Bailey bridge 9, and platform panels 11 are laid on the distribution beams 10.

[0062] Select an extension support 16 of appropriate length based on the sea level.

[0063] The tower crane foundation frame 13, support frame column 14, extension support 16 and buoyancy platform 17 are assembled into one unit, and the connection between the tower crane foundation frame 13 and support frame column 14 is temporarily fixed.

[0064] The tower crane foundation frame 13 and the supporting frame column 14 are hoisted and erected as a whole using a crane on the shore, and the buoyancy platform 17 is submerged in the water, and the assembled whole is in a floating state;

[0065] The assembled components were transported to the vicinity of the platform using transport vessels;

[0066] The tower crane foundation frame 13 is slightly lifted by a crane boat, and the temporary fixation between the tower crane foundation frame 13 and the support frame column 14 is dismantled to reduce the friction force on the plug beam 12 when it is plugged in.

[0067] Place the insertion beam 12 of the tower crane foundation frame 13 on the main longitudinal beam 7;

[0068] Insert the plug beam 12 on one side of the tower crane foundation frame 13 into the end of the main cross beam 5, with the lower end of the plug beam 12 abutting against the main longitudinal beam 7;

[0069] Use connecting bolts 15 to lock the plug beam 12, thus completing the connection of the tower crane foundation;

[0070] The crane 19 was lifted onto the top seat 18 at the top of the support frame column 14 using a lifting vessel and then installed using connecting bolts.

[0071] At this time, because the supporting frame column 14 is in a floating state, it sinks a certain distance under pressure;

[0072] After the crane 19 has stabilized, a fixing plate frame 1401 with a clamping column 1402 is welded to the outside of the supporting frame column 14;

[0073] Hook one end of hook plate 1301 onto the clamping column 1402, and weld the other end to the inner side of the tower crane foundation frame 13. Weld the hook position to complete the height positioning of the crane 19.

[0074] Due to the large platform area, the boom extension of crane 19 is relatively limited. When crane 19 needs to be repositioned:

[0075] Remove the bolts from the chassis of crane 19;

[0076] Use a crane vessel to lower crane 19 onto a steel platform or a nearby transport vessel and temporarily secure it.

[0077] Remove connecting bolts 15, use a crane boat to slightly lift the tower crane foundation frame 13, and pull out the plug beam 12;

[0078] The aforementioned integrated component was towed as a whole to the end of another main crossbeam 5 of the platform using a transport ship;

[0079] Reinstall and reposition the integrated component and the crane 19 according to the above-described installation method.

[0080] Example 2:

[0081] like Figure 12 A floating steel platform structure with a tower crane foundation includes multiple vertically spaced steel pipe piles 1, multiple horizontally connected steel beams 2 between the steel pipe piles 1, a pile cap 4 at the top of each steel pipe pile 1, a main crossbeam 5 on the pile cap 4, a Bailey bridge 9 connecting the main crossbeams 5, a platform panel 11 on the upper side of the Bailey bridge 9, and a main platform 20, one end of the main platform 20 being connected to the Bailey bridge 9, and the tower crane foundation being set on the platform panel 11.

[0082] In this scheme, the main platform is the original platform, which serves as the platform for the construction of bored piles, while the newly built platform is an auxiliary platform, specifically designed to support the tower crane foundation.

[0083] Both the pile foundation and the surface layer can be used with the platform structure, avoiding repeated installation and reducing labor intensity; the tower crane foundation can be connected with the Bailey bridge and H-beam main crossbeam, which strengthens the overall structure and improves both safety and versatility.

[0084] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A floating steel platform structure with a tower crane foundation, characterized in that: It includes multiple vertically spaced steel pipe piles (1), multiple horizontal steel beams (2) between the steel pipe piles (1), a pile cap (4) at the top of each steel pipe pile (1), a main cross beam (5) on the pile cap (4), a Bailey bridge (9) connected between each main cross beam (5), a platform panel (11) on the upper side of the Bailey bridge (9), and a tower crane foundation. The end of the Bailey bridge (9) or the platform panel (11) is connected to the tower crane foundation. The main crossbeam (5) is hollow near both ends. The main crossbeam (5) has extended corbel plates (6) near the lower ends. The corbel plates (6) are equipped with main longitudinal beams (7). One end of the main longitudinal beam (7) is connected to the end of the corbel plate (6). The tower crane foundation includes a plug beam (12) and a tower crane foundation frame (13). The lower end of the plug beam (12) abuts against the main longitudinal beam (7). The end of the plug beam (12) is inserted into the main crossbeam (5). The plug beam (12) and the main crossbeam (5) are detachably connected.

2. The floating steel platform structure with tower crane foundation according to claim 1, characterized in that: The tower crane foundation also includes a support frame column (14), which is connected to the tower crane foundation frame (13). The top of the support frame column (14) is provided with a top seat (18), which is used to place the crane (19).

3. The floating steel platform structure with tower crane foundation according to claim 2, characterized in that: The lower end of the supporting frame column (14) is provided with an extension support (16), and the lower end of the extension support (16) is provided with a buoyancy platform (17), which is placed underwater.

4. The floating steel platform structure with tower crane foundation according to claim 1, characterized in that: The supporting frame column (14) includes at least four vertically arranged inner frame columns (1403). The tower crane foundation frame (13) is a rectangular frame structure. At least four corners of the inner side of the tower crane foundation frame (13) are provided with rotatable guide wheels (1302). The guide wheels (1302) are V-shaped wheels and roll against the outer wall of the inner frame column (1403).

5. The floating steel platform structure with tower crane foundation according to claim 4, characterized in that: The support frame column (14) is provided with a fixed plate frame (1401), and the fixed plate frame (1401) is provided with a clamping column (1402) at both ends. The tower crane foundation frame (13) is provided with a hook plate (1301), and the hook plate (1301) hooks downward to the clamping column (1402).

6. The floating steel platform structure with tower crane foundation according to claim 1, characterized in that: The side of the main crossbeam (5) on the pile cap (4) is provided with a Bailey bridge connecting beam (8), and the two ends of the Bailey bridge (9) are provided on the Bailey bridge connecting beam (8) and welded to the Bailey bridge connecting beam (8).

7. The floating steel platform structure with tower crane foundation according to claim 1, characterized in that: The Bailey bridge (9) is provided with multiple parallel and spaced distribution beams (10), and the platform panel (11) is welded to each distribution beam (10).

8. The floating steel platform structure with tower crane foundation according to claim 1, characterized in that: It also has a main platform (20), one end of which is connected to the Bailey bridge (9), and the tower crane foundation is set on the platform panel (11).

9. The installation method of the floating steel platform structure with tower crane foundation according to claim 1, characterized in that: Each steel structure component is prefabricated in the factory and then transported to the construction site. Steel pipe piles were driven into the piles using a piling boat (1). After the construction was completed, the steel pipe piles were connected to the surrounding temporary steel platform using a flat steel beam (2) and a cross-section (3) to enhance stability. A pile cap (4) is welded to the top of the steel pipe pile (1). The elevation and plane position of the pile cap (4) need to be laid out on site after preparation of measurement to meet the accuracy requirements of beam system installation. Hoist the main crossbeam (5) and hoist it above the steel pipe pile (1) using the hoisting equipment to complete the connection between the main crossbeam (5) and the pile cap (4); Weld bracket plates (6) to the ends of the main crossbeam (5), hoist the main longitudinal beam (7), place the main longitudinal beam (7) on the bracket plates (6), and fix it by bolts or welding; Install Bailey bridge connecting beams (8) on both sides of the main crossbeam (5) on the pile cap (4), and place the two ends of the Bailey bridge (9) on the Bailey bridge connecting beams (8) and fix them in place; Multiple distribution beams (10) are installed on the upper side of the main crossbeam (5) and the upper side of the Bailey bridge (9), and platform panels (11) are laid on the distribution beams (10). Insert the plug beam (12) on one side of the tower crane foundation frame (13) into the end of the main cross beam (5), and the lower end of the plug beam (12) abuts against the main longitudinal beam (7).

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