An assembled steel pipe connecting system and a construction method thereof

Abstract

The application provides an assembled steel pipe connecting system, which comprises a plurality of horizontal rods, a plurality of vertical rods arranged between adjacent two horizontal rods, and a plurality of inclined rods arranged between adjacent two vertical rods; outer connecting units are arranged on the outer walls of the steel pipe piles, the horizontal rods, the inclined rods and the vertical rods; inner connecting units are arranged at the two ends of the inclined rods, the two ends of the vertical rods and the two ends of the horizontal rods and are connected with the corresponding outer connecting units; the outer connecting unit comprises an outer connecting inner ring, an outer connecting outer ring and an outer connecting reinforcing ring plate arranged between the outer connecting inner ring and the outer connecting outer ring, and an outer connecting screw rod arranged between the outer connecting inner ring and the outer connecting outer ring; the inner connecting unit comprises an inner connecting inner ring, an inner connecting outer ring and an inner connecting reinforcing ring plate arranged between the inner connecting inner ring and the inner connecting outer ring, and an inner connecting screw rod arranged between the inner connecting inner ring and the inner connecting outer ring. The inner connecting unit and the outer connecting unit based on the principle of the hoop method are used to quickly assemble the steel pipe rods into the steel pipe connecting system, the steel pipe connecting system is convenient to assemble and disassemble, the welding of the node positions of the whole steel pipe connecting system is not needed, and the construction period is greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of steel pipe connection system design and construction technology, and in particular relates to a prefabricated steel pipe connection system and its construction method. Background Technology

[0002] In bridge construction, steel pipe connection systems are commonly used in temporary structures such as steel trestle bridges and multi-support scaffolds to improve the overall stability of the structure. However, traditional construction methods involve welding steel pipe members of various designed dimensions together. This requires high precision in the initial length and diameter of the members, cannot fully utilize existing steel, and makes it difficult to adjust or replace the connection system after welding. Furthermore, welding operations are time-consuming, affecting construction progress, and welding quality is difficult to guarantee. Dismantling the connection system may damage individual members, leading to wasted steel pipes or potential safety hazards in subsequent use. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a prefabricated steel pipe connection system and its construction method.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:

[0005] An assembled steel pipe connection system includes several horizontal bars arranged between two steel pipe piles, several vertical bars between adjacent horizontal bars, and diagonal bars between adjacent vertical bars. External connecting units are provided on the outer walls of the steel pipe piles, the horizontal bars, the diagonal bars, and the vertical bars. Internal connecting units are provided at both ends of the diagonal bars, the vertical bars, and the horizontal bars, connecting to their corresponding external connecting units. Each external connecting unit includes an inner outer ring, an outer outer ring, and an outer reinforcing ring plate between them, with an external connecting threaded rod between the inner and outer rings. Each internal connecting unit includes an inner inner ring, an outer outer ring, and an inner reinforcing ring plate between them, with an internal connecting threaded rod between the inner and outer rings. Anti-rotation nuts are provided on both the external and internal connecting threaded rods, and clamping elements are provided at both ends of both the external and internal connecting threaded rods. An anode connecting plate is provided on the inner inner ring, with a male connector on the anode connecting plate, and a female connector matching the male connector is provided on the outer wall of the outer outer ring.

[0006] Furthermore, the female connector includes two male connector connecting plates arranged side by side.

[0007] Furthermore, the lead screw is a fully threaded lead screw.

[0008] Furthermore, the male connector is provided with a pin hole, and the anode connection plate is provided with a fixing hole corresponding to the pin hole.

[0009] Furthermore, the clamping component includes a fixed steel plate, and a gasket is provided on the outer surface of the fixed steel plate.

[0010] Furthermore, the gasket is a rubber gasket.

[0011] A construction method for a prefabricated steel pipe connection system includes the following steps:

[0012] S1. Assemble the internal connection unit and the external connection unit;

[0013] S2. Set up an external connection unit on the steel pipe pile. After adjusting it to the design position, connect the connecting steel plates with high-strength bolts. Adjust each screw rod and nut, press the shim tightly against the outer wall of the steel pipe pile, and then tighten the nut at the end of the screw rod beam to fix the external connection unit to the outer wall of the steel pipe pile.

[0014] S3. Assemble the diagonal braces, vertical braces, and horizontal braces, and install external connecting units on the outer walls of the diagonal braces, vertical braces, and horizontal braces;

[0015] S4. Install the internal connection unit inside the assembled horizontal bar, vertical bar and diagonal bar ends. The male connector of the internal connection unit extends out of the steel pipe end. Adjust each screw and nut, press the gasket tightly against the inner wall of the bar, and then tighten the nuts at both ends of the screw to fix the internal support clamp connector to the inner wall of the corresponding bar.

[0016] S5. Hoist the horizontal, vertical and diagonal bars connected to the steel pipe piles to the appropriate positions, insert the male connectors of the inner connecting units at the ends of the horizontal, vertical and diagonal bars into the female connectors of the corresponding outer connecting units of the steel pipe piles, and fix them with pins.

[0017] S6. Insert the male connector of the inner connecting unit at the end of the vertical and diagonal bars into the female connector of the outer connecting unit on the corresponding horizontal bar, and fix it with a pin.

[0018] S7. By loosening and tightening the external connection units, the lengths of the horizontal bars, vertical bars and diagonal bars are adjusted a second time to adjust the on-site installation accuracy of each bar;

[0019] S8. Finally, tighten the pins at the joints of each connector to complete the assembly of the steel pipe connection system.

[0020] Furthermore, the diagonal braces, vertical braces, and horizontal braces all adopt a telescopic structure.

[0021] Compared with existing technologies, the present invention has the following advantages:

[0022] This invention uses an inner connection unit and an outer connection unit based on the clamping method to quickly assemble various steel pipe members into a steel pipe connection system. Assembly and disassembly are convenient, and no welding is required at any node position of the overall steel pipe connection system, which greatly reduces the construction cycle, solves the problem of damage to steel pipes caused by welding, can make full use of and protect steel pipes, and save construction costs. Attached Figure Description

[0023] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0024] Figure 1 A schematic diagram of the structure created by this invention;

[0025] Figure 2 A side view of the external connection unit portion created for this invention;

[0026] Figure 3 A top view of the external connection unit portion of this invention;

[0027] Figure 4 A side view of the internal connection unit portion created for this invention;

[0028] Figure 5 A top view of the internal connection unit portion of this invention;

[0029] Figure 6 This invention was created Figure 1 Enlarged view of the structure at point A in the middle;

[0030] Figure 7 This invention was created Figure 1 Enlarged view of the structure at point B in the middle;

[0031] Figure 8 This invention was created Figure 1 Enlarged view of the structure at point C.

[0032] Explanation of reference numerals in the attached figures: Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] A prefabricated steel pipe connection system, such as Figures 1 to 8 As shown, the structure includes several horizontal bars 4 arranged between two steel pipe piles 3, and several vertical bars 5 between adjacent horizontal bars, and diagonal bars 6 between adjacent vertical bars. External connecting units 1 are provided on the outer walls of the steel pipe piles, the horizontal bars, the diagonal bars, and the vertical bars. Inner connecting units 2, which connect to the corresponding external connecting units, are provided at both ends of the diagonal bars, the vertical bars, and the horizontal bars. Each external connecting unit includes an inner connecting ring 20, an outer connecting ring 21, and an outer reinforcing ring plate between them. 22. An external connecting screw is provided between the outer connecting inner ring and the outer connecting outer ring; the inner connecting unit includes an inner connecting inner ring 15, an inner connecting outer ring 16 and an inner connecting reinforcing ring plate 17 between the two, and an inner connecting screw is provided between the inner connecting inner ring and the inner connecting outer ring; both the outer connecting screw and the inner connecting screw are provided with anti-rotation nuts 14, and each screw 13 is provided with clamping parts at both ends; the inner connecting inner ring is provided with an anode connecting plate 19, and a male connector 8 is provided on the anode connecting plate, and the outer wall of the outer connecting outer ring is provided with a female connector 7 that matches the male connector.

[0038] The female connector includes two male connector connecting plates arranged side by side. The lead screw is a fully threaded lead screw. The male connector has a pin hole, and the corresponding fixing hole is provided on the anode connecting plate. The clamping component includes a fixing steel plate 10, and a gasket 11 is provided on the outer surface of the fixing steel plate. The gasket is a rubber gasket.

[0039] In a further improved design, horizontal, vertical, and diagonal bars can be composed of steel pipes of different diameters and lengths. The end of the smaller diameter pipe is inserted into the larger diameter pipe, and the connection position of the larger and smaller diameter pipes is clamped and fixed by the clamping parts of the external connection unit. This allows the larger diameter pipe to clamp the smaller diameter pipe on the inside. This structural design allows for flexible adjustment of the length and size of each bar according to the actual situation, greatly improving the versatility of the steel pipe connection system. It can be widely used in various temporary structures in different scenarios to meet the needs of steel pipe connection systems.

[0040] A construction method for a prefabricated steel pipe connection system includes the following steps:

[0041] S1. Assemble the internal connection unit and the external connection unit;

[0042] S2. Set up an external connection unit on the steel pipe pile. After adjusting it to the design position, connect the connecting steel plate 18 with high-strength bolts 12. Adjust each screw rod and nut, press the shim tightly on the outer wall of the steel pipe pile, and then tighten the nut at the end of the screw rod beam to fix the external connection unit on the outer wall of the steel pipe pile.

[0043] S3. Assemble the diagonal braces, vertical braces, and horizontal braces, and install external connecting units on the outer walls of the diagonal braces, vertical braces, and horizontal braces;

[0044] S4. Install the internal connection unit inside the assembled horizontal bar, vertical bar and diagonal bar ends. The male connector of the internal connection unit extends out of the steel pipe end. Adjust each screw and nut, press the gasket tightly against the inner wall of the bar, and then tighten the nuts at both ends of the screw to fix the internal support clamp connector to the inner wall of the corresponding bar.

[0045] S5. Hoist the horizontal, vertical and diagonal bars connected to the steel pipe piles to the appropriate positions, insert the male connectors of the inner connecting units at the ends of the horizontal, vertical and diagonal bars into the female connectors of the corresponding outer connecting units of the steel pipe piles, and fix them with pins 9.

[0046] S6. Insert the male connector of the inner connecting unit at the end of the vertical and diagonal bars into the female connector of the outer connecting unit on the corresponding horizontal bar, and fix it with a pin.

[0047] S7. By loosening and tightening the external connection units, the lengths of the horizontal bars, vertical bars and diagonal bars are adjusted a second time to adjust the on-site installation accuracy of each bar;

[0048] S8. Finally, tighten the pins at the joints of each connector to complete the assembly of the steel pipe connection system.

[0049] Preferably, the diagonal bars, vertical bars, and horizontal bars all adopt a telescopic structure.

[0050] This invention allows for the rapid assembly of steel pipe connection systems using external and internal connection units. The length and dimensions of the connection system can be flexibly adjusted, eliminating the need for welding between steel pipes. Assembly and disassembly are time-saving and labor-saving, reducing construction time. Furthermore, it is highly versatile and can fully utilize and protect steel materials.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fabricated steel pipe connection system, characterized by: The system includes several horizontal bars arranged between two steel pipe piles, and several vertical bars between adjacent horizontal bars, and diagonal bars between adjacent vertical bars. External connecting units are provided on the outer walls of the steel pipe piles, the horizontal bars, the diagonal bars, and the vertical bars. Internal connecting units are provided at both ends of the diagonal bars, the vertical bars, and the horizontal bars, connecting to the corresponding external connecting units. Each external connecting unit includes an inner outer ring, an outer outer ring, and an outer reinforcing ring plate between them, with an external connecting threaded rod between the inner and outer outer rings. Each internal connecting unit includes an inner inner ring, an outer outer ring, and an inner reinforcing ring plate between them. An inner connecting screw is provided between the inner and outer connecting rings; both the outer and inner connecting screws are equipped with anti-rotation nuts, and clamping parts are provided at both ends of the outer and inner connecting screws respectively; an anode connecting plate is provided on the inner connecting ring, and a male connector is provided on the anode connecting plate; a female connector matching the male connector is provided on the outer wall of the outer connecting ring; the horizontal rod, vertical rod, and diagonal rod are composed of steel pipes of different diameters and lengths. The end of the small-diameter pipe is inserted into the large-diameter pipe, and the clamping parts of the outer connecting unit clamp and fix the joint position of the large-diameter pipe and the small-diameter pipe, so that the large-diameter pipe clamps the small-diameter pipe on the inside.

2. The prefabricated steel pipe connection system according to claim 1, characterized in that: The female connector includes two male connector connecting plates arranged side by side.

3. The prefabricated steel pipe connection system according to claim 1, characterized in that: The lead screw is a fully threaded lead screw.

4. The prefabricated steel pipe connection system according to claim 1, characterized in that: The male connector is provided with a pin hole, and the anode connection plate is provided with a fixing hole corresponding to the pin hole.

5. The prefabricated steel pipe connection system according to claim 1, characterized in that: The clamping component includes a fixed steel plate, and a gasket is provided on the outer surface of the fixed steel plate.

6. The prefabricated steel pipe connection system according to claim 5, characterized in that: The gasket is a rubber gasket.

7. A construction method for the prefabricated steel pipe connection system as described in claim 5, characterized in that, Includes the following steps: S1. Assemble the internal connection unit and the external connection unit; S2. Set up an external connection unit on the steel pipe pile. After adjusting it to the design position, connect the connecting steel plates with high-strength bolts. Adjust each screw rod and nut, press the shim tightly against the outer wall of the steel pipe pile, and then tighten the nut at the end of the screw rod beam to fix the external connection unit to the outer wall of the steel pipe pile. S3. Assemble the diagonal braces, vertical braces, and horizontal braces, and install external connecting units on the outer walls of the diagonal braces, vertical braces, and horizontal braces; S4. Install the internal connection unit inside the assembled horizontal bar, vertical bar and diagonal bar ends. The male connector of the internal connection unit extends out of the steel pipe end. Adjust each screw and nut, press the washer tightly against the inner wall of the bar, and then tighten the nuts at both ends of the screw to fix the internal connection unit to the inner wall of the corresponding bar. S5. Hoist the horizontal, vertical and diagonal bars connected to the steel pipe piles to the appropriate positions, insert the male connectors of the inner connecting units at the ends of the horizontal, vertical and diagonal bars into the female connectors of the corresponding outer connecting units of the steel pipe piles, and fix them with pins. S6. Insert the male connector of the inner connecting unit at the end of the vertical and diagonal bars into the female connector of the outer connecting unit on the corresponding horizontal bar, and fix it with a pin. S7. By loosening and tightening the external connection units, the lengths of the horizontal bars, vertical bars and diagonal bars are adjusted a second time to adjust the on-site installation accuracy of each bar; S8. Finally, tighten the pins at the joints of each connector to complete the assembly of the steel pipe connection system.

8. The construction method of a prefabricated steel pipe connection system according to claim 7, characterized in that: The diagonal, vertical, and horizontal bars all adopt a telescopic structure.

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