Processing method for optimizing stress of steel pipe piles and ring beams of cofferdam

Abstract

The invention provides an optimized cofferdam steel pipe pile and ring beam stress treatment method which comprises the following steps: marking a semicircular side wall, facing one side of a ring beam, of a steel pipe pile as a side A, and marking two quarter circular side walls divided from the side A of the steel pipe pile through a position in contact with the ring beam as sides AA, a stress optimization component is arranged between each side of the two AA sides and the ring beam, the outer side of each stress optimization component is arranged to be of a right-angle face structure, the inner side of each stress optimization component is arranged to be of an arc face structure, the two ends of the arc face are fixedly connected with the two corresponding ends of the right-angle face, the arc face is fixedly connected to the AA sides, and the side, facing the ring beam, of the right-angle face abuts against the ring beam. The method has the beneficial effects that linear contact stress between the steel pipe pile and the ring beam can be converted into uniform surface stress, the situation that stress concentration is generated at the contact position between the steel pipe pile and the ring beam is avoided, uniform stress between the steel pipe pile and the ring beam is guaranteed, the bending rigidity of the steel pipe pile at the ring beam is improved, and the service life of the steel pipe pile is prolonged. And the safety of the steel pipe pile is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of steel pipe pile cofferdam construction, and in particular relates to a method for optimizing the force treatment of cofferdam steel pipe piles and ring beams. Background Art

[0002] During the construction of steel pipe pile cofferdam, a circle of steel pipe piles is set on the outside of the ring beam that is connected end to end. In the traditional scheme, the contact between the steel pipe piles and the ring beam is line contact. When the steel pipe piles are subjected to greater force, greater concentrated stress will be generated at the contact point between the steel pipe piles and the ring beam, resulting in greater local force on the steel pipe piles, which is prone to greater deformation, thereby reducing the bending stiffness of the steel pipe piles at this location. Summary of the invention

[0003] In view of this, the present invention aims to overcome the deficiencies of the above-mentioned problems in the prior art and proposes a method for optimizing the force treatment of cofferdam steel pipe piles and ring beams.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A method for optimizing the force treatment of cofferdam steel pipe piles and ring beams comprises the following steps: the semicircular side wall of the steel pipe pile facing the ring beam is recorded as the A side, the two quarter-circular side walls of the A side of the steel pipe pile divided by the contact with the ring beam are recorded as the AA side, a force optimization component is provided between each side and the ring beam at the two AA sides, the outer side of the force optimization component is set as a right-angle surface structure, and the inner side is set as a curved surface structure, the two ends of the curved surface are fixedly connected to the corresponding two ends of the right-angle surface, and the curved surface is fixedly connected to the AA side, and the side of the right-angle surface facing the ring beam is abutted against the ring beam.

[0006] Furthermore, the stress-optimizing component is an integrally formed structure, or is fixed together by welding a curved plate and two flat plates.

[0007] Furthermore, the arc radius of the arc surface is consistent with the radius of the steel pipe pile, the length of the two side walls of the right angle surface is consistent with the radius of the steel pipe pile, and the height of the arc surface is consistent with the height of the two side walls of the right angle surface.

[0008] Furthermore, the ring beam includes an I-beam structure that is butt-jointed and fixed together at upper and lower positions, the distance between the webs of the two I-beams is consistent with the height dimension of the force-optimizing component, and the force-optimizing component is attached to the outer side of the wing plate on one side of the I-beam, and the upper and lower sides correspond to the webs of the two I-beams.

[0009] Compared with the prior art, the present invention has the following advantages:

[0010] The method for optimizing the force treatment of the cofferdam steel pipe piles and the ring beam described in the present invention can convert the line contact force between the steel pipe piles and the ring beam into uniform surface force, thereby avoiding stress concentration at the contact point between the steel pipe piles and the ring beam. The manufacturing method is simple and the installation is convenient. It also ensures uniform force between the steel pipe piles and the ring beam, improves the bending stiffness of the steel pipe piles at the ring beam, and improves the safety of the steel pipe piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is a schematic diagram of the structure after the force bearing part between the steel pipe pile and the ring beam is optimized according to an embodiment of the present invention;

[0013] Figure 2 This is a structural front view of a force-optimizing component installed between a steel pipe pile and a ring beam according to an embodiment of the present invention;

[0014] Figure 3 A top view of a structure in which a force-optimizing component is installed between a steel pipe pile and a ring beam according to an embodiment of the present invention;

[0015] Figure 4 It is a top view of the force-optimized component described in an embodiment of the present invention.

[0016] Description of reference numerals:

[0017] 1. Steel pipe pile; 11. A side; 111. AA side; 2. Ring beam; 21. Web plate; 22. Flange plate; 3. Force-optimizing member; 31. Arc surface; 32. Right-angle surface. DETAILED DESCRIPTION

[0018] 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.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0022] As shown in the figure, a method for optimizing the force treatment of cofferdam steel pipe piles and ring beams includes the following steps: the semicircular side wall of the steel pipe pile 1 facing the ring beam 2 is marked as the A side 11, and the two quarter-circular side walls divided by the A side 11 of the steel pipe pile 1 through the contact with the ring beam 2 are marked as the AA side 111, and a force optimization component 3 is provided between each side and the ring beam 2 at the two AA sides 111, the outer side of the force optimization component 3 is set as a right-angle surface 32 structure, and the inner side is set as a curved surface 31 structure, the two ends of the curved surface 31 are fixedly connected to the corresponding two ends of the right-angle surface 32, and the curved surface 31 is fixedly connected to the AA side 111, and the side of the right-angle surface 32 facing the ring beam 2 is abutted against the ring beam 2.

[0023] The force-optimizing component 3 is an integrally formed structure, or is welded and fixed together by an arc-shaped plate and two flat plates.

[0024] The arc radius of the arc surface 31 is consistent with the radius of the steel pipe pile 1 , the length of the two side walls of the right angle surface 32 is consistent with the radius of the steel pipe pile 1 , and the height of the arc surface 31 is consistent with the height of the two side walls of the right angle surface 32 .

[0025] The ring beam 2 includes an I-beam structure that is butt-jointed and fixed together at the top and bottom. The distance between the webs 21 of the two I-beams is consistent with the height dimension of the force-optimizing component 3, and the force-optimizing component 3 is attached to the outer side of the wing plate 22 on one side of the I-beam, and the upper and lower sides correspond to the webs 21 of the two I-beams.

[0026] The method can convert the line contact force between the steel pipe pile 1 and the ring beam 2 into uniform surface force, thereby avoiding stress concentration at the contact point between the steel pipe pile 1 and the ring beam 2. The manufacturing method is simple and the installation is convenient. It also ensures uniform force between the steel pipe pile 1 and the ring beam 2, improves the bending stiffness of the steel pipe pile 1 at the ring beam 2, and improves the safety of the steel pipe pile 1.

[0027] The above description is only 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for optimizing the stress treatment of cofferdam steel pipe piles and ring beams, characterized in that: The method comprises the following steps: the semicircular side wall of the steel pipe pile facing the ring beam is marked as the A side, the two quarter-circular side walls divided by the A side of the steel pipe pile at the contact with the ring beam are marked as the AA side, a force optimization component is provided between each side and the ring beam at the two AA sides, the outer side of the force optimization component is set as a right-angle surface structure, and the inner side is set as a curved surface structure, the two ends of the curved surface are fixedly connected with the corresponding two ends of the right-angle surface, and the curved surface is fixedly connected to the AA side, and the side of the right-angle surface facing the ring beam is abutted against the ring beam.

2. The method for optimizing the force treatment of cofferdam steel pipe piles and ring beams according to claim 1 is characterized in that: The stress-optimizing component is an integrally formed structure, or is fixed together by welding a curved plate and two flat plates.

3. The method for optimizing the force treatment of cofferdam steel pipe piles and ring beams according to claim 1 is characterized in that: The arc radius of the arc surface is consistent with the radius of the steel pipe pile, the length of the two side walls of the right angle surface is consistent with the radius of the steel pipe pile, and the height of the arc surface is consistent with the height of the two side walls of the right angle surface.

4. A method for optimizing the stress treatment of cofferdam steel pipe piles and ring beams according to claim 3, characterized in that: The ring beam includes an I-beam structure that is butt-jointed and fixed together at the top and bottom. The distance between the webs of the two I-beams is consistent with the height dimension of the force-optimizing component, and the force-optimizing component is attached to the outer side of the wing plate on one side of the I-beam, and the upper and lower sides correspond to the webs of the two I-beams.

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