Fabricated steel foundation for bridge construction support

Abstract

The invention provides a fabricated steel foundation for a bridge construction support, and belongs to the technical field of bridge construction supports, and the fabricated steel foundation comprises a steel plate foundation assembly used as a base and playing a supporting role; the vertical rod assembly is fixed on the steel plate foundation assembly and is used for mounting a steel pipe bracket; and the expanding assemblies are mounted around the steel plate foundation assembly and used for expanding the steel plate foundation assembly. The steel plate foundation assembly is composed of the upper steel plate, the lower steel plate and the internal stiffening steel plate, the vertical rod assemblies of different sizes are installed on the steel plate foundation assembly, connection with steel pipe support vertical rods of different sizes can be achieved, and meanwhile the steel foundation expansion assemblies of two specifications are provided; the conditions that the load of an upper bridge is large and the bearing capacity of a foundation is small can be met, and therefore the application range, the recycling performance and the safety of the steel foundation are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction supports, and in particular to an assembled steel foundation for a bridge construction support. Background Art

[0002] Bridge construction scaffolding is a temporary structure used to support beams, formwork, and construction loads during bridge construction. Steel pipe scaffolding is typically constructed from steel pipe columns, crossbeams, and braces. Its primary functions include bearing loads, positioning and shaping, and assisting in construction.

[0003] Traditional steel pipe support foundations utilize concrete foundations, requiring formwork, pouring, and maintenance, resulting in a long construction cycle. Furthermore, after the upper bridge is constructed, the support's concrete foundation is typically removed, increasing the number of construction steps and generating significant amounts of construction waste. This results in a low material recycling rate and is inconsistent with green construction concepts. Furthermore, in actual projects, the original steel pipe support and foundation connection may be solely based on expansion bolts, often without prior calculations, posing safety risks. Summary of the Invention

[0004] The present invention provides an assembled steel foundation for a bridge construction support, which is used to solve the defects of the bridge construction support in the prior art.

[0005] The present invention provides an assembled steel foundation for a bridge construction support, comprising: a steel plate foundation assembly, serving as a base and playing a supporting role; a vertical pole assembly, fixed on the steel plate foundation assembly and used for installing a steel pipe support; and an expansion assembly, installed around the steel plate foundation assembly and used for expanding the steel plate foundation assembly.

[0006] According to the present invention, an assembled steel foundation for a bridge construction support is provided, wherein the steel plate foundation assembly consists of an upper steel plate, a lower steel plate and internal stiffening ribs, and a plurality of the internal stiffening ribs are welded at intervals between the upper steel plate and the lower steel plate.

[0007] According to the present invention, an assembled steel foundation for a bridge construction support is provided, wherein the vertical pole assembly includes a first steel pipe segment, a second steel pipe segment and a third steel pipe segment, the diameter of the first steel pipe segment is smaller than that of the second steel pipe segment, the diameter of the second steel pipe segment is smaller than that of the third steel pipe segment, the length of the first steel pipe segment is greater than that of the second steel pipe segment, the diameter of the second steel pipe segment is greater than that of the third steel pipe segment, a plurality of stiffening ribs are welded to the outer sides of the tops and bottoms of the first steel pipe segment, the second steel pipe segment and the third steel pipe segment, and flanges of corresponding sizes are welded to the tops of the first steel pipe segment, the second steel pipe segment and the third steel pipe segment.

[0008] According to the present invention, an assembled steel foundation for a bridge construction support is provided. The first steel pipe segment, the second steel pipe segment and the third steel pipe segment in the vertical pole assembly are welded to the steel plate foundation assembly in sequence according to their diameters, forming a steel foundation that can be used for three steel pipe supports of different sizes.

[0009] According to the present invention, an assembled steel foundation for a bridge construction support further includes bolts for fixing the flange and connecting the steel pipe support.

[0010] According to the present invention, an assembled steel foundation for a bridge construction support is provided, wherein the expansion component includes an L-shaped steel foundation expansion component and a rectangular foundation expansion component.

[0011] According to the present invention, an assembled steel foundation for a bridge construction support is provided, wherein the L-shaped steel foundation expansion component includes two L-shaped steel plates, and multiple groups of L-shaped stiffening ribs are welded between the two L-shaped steel plates, and each group of L-shaped stiffening ribs includes a movable stiffening rib.

[0012] According to the present invention, an assembled steel foundation for a bridge construction support is provided, wherein the rectangular foundation expansion component includes two rectangular steel plates, and multiple groups of L-shaped stiffening ribs are welded between the two rectangular steel plates, and each group of L-shaped stiffening ribs includes a movable stiffening rib.

[0013] According to the assembled steel foundation for a bridge construction support provided by the present invention, when the size of the steel foundation needs to be expanded, the movable L-shaped stiffening ribs in the L-shaped steel foundation expansion component and the rectangular foundation expansion component can be pulled out and inserted into the upper and lower steel plates of the steel plate foundation component.

[0014] According to the assembled steel foundation for a bridge construction support provided by the present invention, multiple groups of the L-shaped steel foundation expansion components and the rectangular foundation expansion components are provided.

[0015] The present invention provides an assembled steel foundation for a bridge construction support. The steel plate foundation assembly is composed of an upper steel plate, a lower steel plate and an internal stiffening steel plate. Vertical pole assemblies of different sizes are installed on the steel plate foundation assembly, which can be connected to vertical poles of steel pipe supports of different sizes. At the same time, two specifications of steel foundation expansion assemblies are provided to meet the situation where the upper bridge load is relatively large and the foundation bearing capacity is relatively small, thereby improving the applicability, recyclability and safety of the steel foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of an assembled steel foundation for a bridge construction support provided by the present invention; Figure 2 is an internal schematic diagram of the steel plate foundation assembly method provided by the present invention; Figure 3 It is a structural schematic diagram of the steel plate foundation assembly provided by the present invention; Figure 4 It is a structural schematic diagram of the first steel pipe section provided by the present invention; Figure 5 It is a structural schematic diagram of the second steel pipe section provided by the present invention; Figure 6 1 is a schematic structural diagram of a third steel pipe section provided by the present invention; Figure 7 This is one of the schematic diagrams for installing a steel pipe bracket provided by the present invention; Figure 8 This is the second schematic diagram of the installation of the steel pipe bracket provided by the present invention; Figure 9 This is the third schematic diagram of the installation of the steel pipe bracket provided by the present invention; Figure 10 This is a cross-sectional view of the L-shaped steel foundation expansion assembly structure provided by the present invention; Figure 11 This is a cross-sectional view of the rectangular foundation expansion assembly structure provided by the present invention; Figure 12 It is one of the expanded schematic diagrams provided by the present invention; Figure 13 This is the second expansion schematic diagram provided by the present invention.

[0018] Reference numerals: 100. Steel plate foundation assembly; 110, upper steel plate; 120, lower steel plate; 130, internal stiffening ribs; 131, full-length stiffening ribs; 132, short-direction stiffening ribs; 200, pole assembly; 210, first steel pipe section; 220, second steel pipe section; 230, third steel pipe section; 240, stiffening rib; 250, flange; 260, bolt; 300, expansion components; 310. L-shaped steel foundation expansion assembly; 311. L-shaped steel plate; 312. L-shaped stiffening rib; 313. Movable stiffening rib; 320. Rectangular foundation expansion assembly; 400. Steel pipe support. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of the specified features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0021] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the Figure 1 The orientation and position of the prefabricated steel foundation for bridge construction support when normally placed are shown only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words 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 cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0023] The present invention provides an assembled steel foundation for a bridge construction support, including: a steel plate foundation assembly 100, which serves as a base and plays a supporting role; a vertical pole assembly 200, which is fixed on the steel plate foundation assembly 100 and is used to install a steel pipe support 400; and an expansion assembly 300, which is installed around the steel plate foundation assembly 100 and is used to expand the steel plate foundation assembly 100.

[0024] The prefabricated steel foundation used for bridge construction supports adopts a modular design, which is convenient for transportation and quick assembly. It has strong adaptability and can adjust the foundation size through the expansion component 300 to adapt to different foundation bearing capacities and load requirements. It also improves utilization rate. The same steel plate foundation component 100 can be adapted to a variety of steel pipe supports 400, reducing material waste.

[0025] In one embodiment, the steel plate foundation assembly 100 is composed of an upper steel plate 110, a lower steel plate 120, and internal stiffening ribs 130. Multiple internal stiffening ribs 130 are welded at intervals between the upper and lower steel plates 110, 120. This enhances structural stability, and the rational distribution of the internal stiffening ribs 130 improves bending and compression resistance.

[0026] In one embodiment, the vertical pole assembly 200 includes a first steel pipe segment 210, a second steel pipe segment 220, and a third steel pipe segment 230. The diameter of the first steel pipe segment 210 is smaller than that of the second steel pipe segment 220, which is smaller than that of the third steel pipe segment 230. The first steel pipe segment 210 is longer than the second steel pipe segment 220, and the diameter of the second steel pipe segment 220 is larger than that of the third steel pipe segment 230. A plurality of stiffening ribs 240 are welded to the outer top and outer bottom of each of the first, second, and third steel pipe segments 210, 220, and 230. Flanges 250 of corresponding sizes are welded to the tops of the first, second, and third steel pipe segments 210, 220, and 230. The first, second, and third steel pipe segments 210, 220, and 230 of the vertical pole assembly 200 are welded to the steel plate foundation assembly 100 in order of diameter, forming a steel foundation suitable for three different sizes of steel pipe supports 400.

[0027] Compatible with multiple specifications, one foundation can be used with steel pipe supports 400 of varying diameters, enhancing versatility. The nested design saves space and enhances overall stability. Flexible matching adapts to diverse project requirements, reducing the cost of specialized steel plate foundation assemblies 100. Construction is convenient, eliminating the need to replace the steel plate foundation assemblies 100, improving construction efficiency.

[0028] For example, the internal stiffening ribs 130 of the steel plate foundation assembly 100 are welded together by seven full-length stiffening ribs 131 and a plurality of short-length stiffening ribs 132. The position and spacing of the internal stiffening ribs 130 correspond to the first steel pipe section 210, the second steel pipe section 220, and the third steel pipe section 230 in the vertical pole assembly 200, thereby enhancing structural stability. The internal stiffening ribs 130 are rationally distributed to improve bending and compression resistance. Accurately connect the vertical poles to ensure that the vertical pole assembly 200 is firmly connected to the foundation and reduce stress concentration.

[0029] In one embodiment, bolts 260 are further included for fixing the flange 250 and connecting the steel pipe bracket 400 .

[0030] Detachable connection makes assembly and later adjustment easier; standardized interface improves construction efficiency and reduces installation difficulty.

[0031] In one embodiment, the expansion assembly 300 includes an L-shaped steel base expansion assembly 310 and a rectangular base expansion assembly 320. The L-shaped steel base expansion assembly 310 comprises two L-shaped steel plates 311, with multiple sets of L-shaped stiffening ribs 312 welded between the two L-shaped steel plates 311. Each set of L-shaped stiffening ribs 312 includes a movable stiffening rib 313. Multiple sets of L-shaped steel base expansion assemblies 310 and rectangular base expansion assemblies 320 are provided.

[0032] Flexible expansion to meet different foundation bearing capacity requirements; adjustable design eliminates the need to replace the entire steel plate foundation assembly 100, reducing renovation costs.

[0033] For example, four L-shaped steel foundation expansion components 310 and four rectangular foundation expansion components 320 are provided, evenly distributed around the steel plate foundation component 100. The L-shaped steel foundation expansion components 310 are installed at the four corners of the steel plate foundation component 100, and the rectangular foundation expansion components 320 are installed between two L-shaped steel foundation expansion components 310.

[0034] Balanced stress improves the overall stability of the steel plate foundation assembly 100; symmetrical expansion avoids uneven settlement caused by eccentric loads.

[0035] When the steel foundation size needs to be expanded, the steel pipe support 400 can pull out the movable L-shaped stiffening ribs 312 in the L-shaped steel foundation expansion component 310 and the rectangular foundation expansion component 320 and insert them into the upper and lower steel plates 120 of the steel plate foundation component 100.

[0036] Quick adjustment, no additional welding or cutting required, convenient construction; strong adaptability, the size of the steel plate foundation component 100 can be flexibly adjusted according to site needs.

[0037] In one embodiment, the size of the steel pipe bracket 400 corresponds to the size of the vertical pole assembly 200, and is standardized to ensure seamless connection with the vertical pole assembly 200; thereby reducing customized production and lowering procurement and management costs.

[0038] For example, a flange 250 is provided at the bottom of the steel pipe support 400, and the upright pole assembly 200 is connected to the steel pipe support 400 via the flange 250, so that a single prefabricated steel foundation can be adapted to multiple steel pipe supports 400. This improves versatility, reduces duplication of steel plate foundation assemblies 100, and reduces construction costs. The same foundation can accommodate different support specifications, improving turnover utilization.

[0039] The present invention solves the following problems existing when conventional bridge construction supports adopt concrete foundations: first, it solves the problem that the concrete foundation requires formwork, pouring, and maintenance during construction, resulting in a long construction period; second, it solves the problem that the concrete foundation is used as the foundation of a temporary structure, and after construction, additional construction steps are required to deal with the reinforced concrete foundation, as well as the waste of materials; third, it solves the problem that in actual projects, the original steel pipe support and the foundation connection method may only use expansion bolts without empirical calculation, which may pose a safety hazard.

[0040] Compared with traditional foundation forms, the present invention has significant advantages. On the one hand, it is suitable for steel pipe brackets of different cross-sectional sizes, which greatly improves applicability; on the other hand, the construction and disassembly process of the Bensteel foundation is simple and convenient, which can greatly improve construction efficiency and material turnover rate, while effectively saving costs; at the same time, the Bensteel foundation also greatly improves the safety of the structure.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An assembled steel foundation for a bridge construction support, characterized in that: include: Steel plate foundation assembly, used as base and supporting role; A vertical pole assembly is fixed on the steel plate foundation assembly and is used to install a steel pipe bracket; The expansion component is installed around the steel plate basic component and is used to expand the steel plate basic component.

2. The assembled steel foundation for bridge construction support according to claim 1, characterized in that: The steel plate foundation assembly consists of an upper steel plate, a lower steel plate and internal stiffening ribs, and a plurality of internal stiffening ribs are welded at intervals between the upper steel plate and the lower steel plate.

3. The assembled steel foundation for bridge construction support according to claim 1, characterized in that: The vertical pole assembly includes a first steel pipe segment, a second steel pipe segment and a third steel pipe segment. The diameter of the first steel pipe segment is smaller than that of the second steel pipe segment, the diameter of the second steel pipe segment is smaller than that of the third steel pipe segment, the length of the first steel pipe segment is greater than that of the second steel pipe segment, the diameter of the second steel pipe segment is greater than that of the third steel pipe segment, and multiple stiffening ribs are welded on the outer sides of the tops and bottoms of the first steel pipe segment, the second steel pipe segment and the third steel pipe segment. Flanges of corresponding sizes are welded on the tops of the first steel pipe segment, the second steel pipe segment and the third steel pipe segment.

4. The assembled steel foundation for bridge construction support according to claim 3, characterized in that: The first steel pipe segment, the second steel pipe segment and the third steel pipe segment in the vertical pole assembly are welded to the steel plate foundation assembly in sequence according to their diameters, forming a steel foundation that can be used for three steel pipe supports of different sizes.

5. The assembled steel foundation for bridge construction support according to claim 4, characterized in that: It also includes bolts for fixing the flange and connecting the steel pipe bracket.

6. The assembled steel foundation for bridge construction support according to claim 2, characterized in that: The expansion components include an L-shaped steel base expansion component and a rectangular base expansion component.

7. The assembled steel foundation for bridge construction support according to claim 6, characterized in that: The L-shaped steel foundation expansion component includes two L-shaped steel plates, and multiple groups of L-shaped stiffening ribs are welded between the two L-shaped steel plates, and each group of L-shaped stiffening ribs includes a movable stiffening rib.

8. The assembled steel foundation for bridge construction support according to claim 7, characterized in that: The rectangular foundation expansion component includes two rectangular steel plates, and multiple groups of L-shaped stiffening ribs are welded between the two rectangular steel plates, and each group of L-shaped stiffening ribs includes a movable stiffening rib.

9. The assembled steel foundation for bridge construction support according to claim 8, characterized in that: When the size of the steel foundation needs to be expanded, the movable L-shaped stiffening ribs in the L-shaped steel foundation expansion component and the rectangular foundation expansion component can be pulled out and inserted into the upper and lower steel plates of the steel plate foundation component.

10. The assembled steel foundation for bridge construction support according to claim 9, characterized in that: The L-shaped steel foundation expansion components and the rectangular foundation expansion components are each provided with multiple groups.

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