Composite joint of binding platform side plate and stand column lap joint of binding bridge and construction method thereof

Abstract

The application discloses a composite joint of a binding platform side plate and a stand column lap joint and a construction method thereof. The composite joint comprises a binding platform, a composite side plate, a stand column and a reinforcing elbow plate. The composite side plate comprises an upper extension section above the binding platform and a lower extension section below the binding platform, and the upper extension section and the lower extension section are integrally formed, and the upper extension section serves as a skirting board. The inner side of the composite side plate is fixedly connected with the side edge of the binding platform, and the outer side is lap-welded and fixed with the stand column. The reinforcing elbow plate is arranged at the top end of the connection part of the composite side plate and the stand column, a half-waist type long hole is formed in the lower end of the reinforcing elbow plate, the outer side is lap-welded and fixed with the stand column, and the upper end horizontal edge, the inner horizontal edge of the half-waist type long hole and the top end horizontal edge of the composite side plate are fixed with the stand column corner weld. During the construction, the composite side plate is used as a mold to form an assembly by double-sided corner welding in a field, then the assembly is lap-welded with the stand column and the reinforcing elbow plate is installed, and finally the whole is hoisted and fixed on a ship. The application reduces the number of parts and welding deformation, and improves the precision and structural strength.

Description

Technical Field

[0001] This invention relates to the field of ship design technology, specifically to a composite node for the overlap of the side plate and column of a lashing bridge lashing platform and its construction method. Background Technology

[0002] Currently, there are two main methods for connecting the side plates of the tying platform to the columns of a tying bridge. The first method involves lap welding of the side plates to the columns, with the platform pressing down on top of the side plates, the platform edges extending beyond the outer edge of the side plates, and the reinforcing elbows of the side plates and columns welded above the platforms on both sides of the columns, and then lap welded to the columns. However, this method has many problems in practical applications: because the platform edges extend beyond the outer edge of the side plates, at the welding position between the platform plate and the column, the platform plate needs to be cut to align with the outer edge of the side plates, and the side plates need to be fillet welded to the bottom of the platform; a single-sided section needs to be made on the upper surface of the platform plate to weld through to the column; within the transition range extending beyond the column, the side plates need to be changed to single-sided sectioning and welding through to the platform; and where the platform edges extend beyond the outer edge of the side plates, the side plates and the bottom of the platform need to be double-sided fillet welded again. The numerous welding joint transition methods easily create stress concentration points at the transition points. Furthermore, the kick plates on top of the platform need to be welded separately, increasing the number of processes and components.

[0003] The second method involves butt welding of the side panels and columns of the top platform. Reinforcing elbows are positioned on both sides of the columns, with one side butt-welded to the side panel and the other to the column. Since the side panels, reinforcing elbows, and columns are all butt-welded, and the connecting elbows between the columns below the platform are also butt-welded, weld overlap is easily caused. Furthermore, butt welding requires cutting a slit for full penetration, resulting in significant welding deformation and hindering precision control.

[0004] Therefore, it is necessary to provide a connection node between the side plate and column of the tying platform for the tying bridge and its construction method that can simplify welding nodes, reduce the number of components, control welding deformation, and improve construction accuracy. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a composite node for the overlapping of the side plate and column of a tying bridge tying platform and its construction method.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A composite node for the connection between the side plate and the column of a tying bridge tying platform includes a tying platform, a composite side plate, a column, and a reinforcing elbow plate. The composite side plate includes an upper extension above the tying platform and a lower extension below the tying platform, which are integrally formed. The inner side of the composite side plate is fixedly connected to the side of the tying platform. A vertically arranged column is fixedly connected to the outer side of the composite side plate. A reinforcing elbow plate is fixedly connected to the top of the connection between the composite side plate and the column. The outer side of the reinforcing elbow plate is fixedly connected to the column. A semi-waist-shaped elongated hole is opened at the lower end of the reinforcing elbow plate. The upper horizontal edge of the reinforcing elbow plate, the inner horizontal edge of the semi-waist-shaped elongated hole at the lower end of the reinforcing elbow plate, and the top horizontal edge of the intersection of the composite side plate and the column are all fixedly connected to the column.

[0008] Preferably, the upper extension also serves as a kickboard.

[0009] A method for constructing a composite joint where the side plate of a tying platform for a tying bridge overlaps with a column includes the following steps:

[0010] Step 1: Designate one side of the composite side plate of the tying bridge as the first composite side plate. On site, using the first composite side plate as a base, perform double-sided fillet welding between the side of the tying platform and the inner side of the first composite side plate to form a T-shaped assembly. The double-sided fillet welding adopts downward welding and vertical welding.

[0011] Step 2: Set the composite side plate on the other side of the binding bridge as the second composite side plate. Turn the T-shaped assembly obtained in Step 1 over. Using the second composite side plate as a base, perform double-sided fillet welding on the other side of the binding platform plate and the inner side of the second composite side plate to form an I-shaped assembly. The double-sided fillet welding is performed by downward welding and vertical welding.

[0012] Step 3: Place the column to be welded on the jig, and hoist the I-shaped assembly obtained in Step 2 above the column, so that the outer side of the composite side plate faces and fits against the column. After positioning, perform lap fillet welding on the outer side of the column and the composite side plate.

[0013] Step 4: Process the reinforcing elbow plate on site. A semi-waist-shaped elongated hole is opened at the lower end of the reinforcing elbow plate. Install the processed reinforcing elbow plate at the top of the connection between the composite side plate and the column. Lap fillet weld the outer side of the reinforcing elbow plate to the column, and butt weld the lower horizontal edge of the reinforcing elbow plate to the top edge of the composite side plate. The upper horizontal edge of the reinforcing elbow plate, the inner horizontal edge of the semi-waist-shaped elongated hole, and the top edge of the composite side plate are all fixed by fillet weld without cutting.

[0014] Step 5: Repeat steps 3 and 4 to complete the welding of the remaining columns, reinforcing elbows and corresponding composite side plates, and complete the overall assembly of the tying bridge on site.

[0015] Step Six: Hoist the entire lashed bridge obtained in Step Five onto the ship, and weld the bottom of each column to the hull to complete the installation of the lashed bridge.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The traditionally separate kickboard and platform side panel are combined into one panel, with the upper extension located above the binding platform and also serving as a kickboard. The outer surface of the composite side panel is used for welding to the column, reducing the number of parts and simplifying the structure.

[0018] 2. The elbow plate is reinforced by combining the two elbow plates that are traditionally arranged on both sides of the column into a single elbow plate with a semi-waist-shaped elongated hole in the middle of the lower end. This reduces the number of parts and increases the welding contact area with the column, making the connection between the platform side plate and the column more secure.

[0019] 3. The composite side plates and reinforcing elbow plates are all lap welded to the columns. All welds are fillet welds, eliminating the need for slits for full penetration welding. This results in minimal welding deformation and facilitates precise control of the bridge fabrication process.

[0020] 4. The construction method uses composite side panels as a template for assembly, and adopts a modular construction method of on-site prefabrication and overall hoisting, which reduces the amount of welding work on board and improves construction efficiency and quality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the composite node of the present invention.

[0022] Among them, 1-binding platform, 2-composite side plate, 3-column, 4-reinforced elbow plate Detailed Implementation

[0023] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and not for limiting the scope of the invention. After reading this invention, any modifications of the invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixed connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] In this invention, terms such as "upper," "lower," "bottom," and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely relational terms determined for the convenience of describing the structural relationship of the various components or elements of this invention, and do not specifically refer to any component or element in this invention, and should not be construed as limiting this invention.

[0026] like Figure 1 As shown, the present invention provides a composite node for the overlap of the side plate of the tying platform and the column of the tying bridge, including the tying platform 1, the composite side plate 2, the column 3 and the reinforcing elbow plate 4.

[0027] The composite side plate includes an upper extension above the tying platform and a lower extension below the tying platform, which are integrally formed. The upper extension, located above the tying platform, has its height determined by the kick plate height required for the tying bridge operation. The upper extension also serves as the kick plate, eliminating the need for a separate kick plate welded to the top of the platform. The inner surface of the composite side plate is fixedly connected to the side of the tying platform, preferably using double-sided fillet welds to ensure connection strength and stability.

[0028] The columns are vertically installed on the outer side of the composite side panels, and the outer surface of the composite side panels is fixedly connected to the columns by lap welding. Compared with butt welding, lap welding does not require cutting a slit, making the welding operation simpler and resulting in less welding deformation.

[0029] A reinforcing elbow plate is fixedly installed at the top of the connection between the composite side plate and the column. The outer side of the reinforcing elbow plate is fixed to the column by lap welding. A semi-circular elongated hole is opened at the lower end of the reinforcing elbow plate, with its inner horizontal edge located at the upper end of the elongated hole. The upper horizontal edge of the reinforcing elbow plate is fixed to the column, the inner horizontal edge of the semi-circular elongated hole at the lower end of the reinforcing elbow plate is fixed to the column, and the connection between the top of the composite side plate and the column is fixed to the column by fillet welds. The semi-circular elongated hole reduces the amount of material used for the reinforcing elbow plate and increases the welding contact area with the column, making the connection more secure.

[0030] A method for constructing a composite joint where the side plate of a tying platform for a tying bridge overlaps with a column includes the following steps:

[0031] Step 1: Fabricate the assembly components on-site. Designate one side of the composite side plate of the tying bridge as the first composite side plate. Using the first composite side plate as a base, perform double-sided fillet welding between the side of the tying platform and the inner surface of the first composite side plate to form a T-shaped assembly. The double-sided fillet welding uses a downward-facing and vertical-facing welding method, meaning vertical welding is performed from the downward-facing position, which ensures welding quality and efficiency.

[0032] Step 2: Turn the T-shaped assembly over on site. Using the second composite side plate as a base, perform double-sided fillet welding between the other side of the binding platform plate and the inner side of the second composite side plate to form an I-shaped assembly. The double-sided fillet welding can be done by overhead or vertical welding, or by automatic welding. At this point, the binding platform and the two composite side plates have been welded into a single I-shaped assembly.

[0033] Step 3: Place the column to be welded on the jig, and hoist the I-beam assembly above the column, ensuring the outer side of the composite side plate is aligned and fitted against the column. After positioning, perform lap fillet welding on the outer side of the column and the composite side plate. In this step, the column is first positioned on the jig, and then the I-beam assembly is hoisted into place, ensuring the positional accuracy of the column.

[0034] Step 4: The reinforcing elbow plate is processed on-site, with a semi-waist-shaped elongated hole drilled at its lower end. The processed reinforcing elbow plate is installed at the top of the connection between the composite side plate and the column. The outer surface of the reinforcing elbow plate is lapped with a fillet weld to the column, and the lower horizontal edge of the reinforcing elbow plate is butt-welded to the top edge of the composite side plate. Simultaneously, the upper horizontal edge of the reinforcing elbow plate, the inner horizontal edge of the semi-waist-shaped elongated hole, and the top edge of the composite side plate are all fixed with fillet welds without cutting. All welds are fillet welds, eliminating the need for cutting and achieving full penetration, resulting in minimal welding deformation and facilitating precision control.

[0035] Step 5: Repeat steps 3 and 4 above to complete the welding of the remaining columns, reinforcing elbows and corresponding composite side plates, and complete the overall assembly of the tying bridge on site.

[0036] Step Six: Hoist the assembled lashed bridge onto the ship and weld the bottom of each column to the hull to complete the installation of the lashed bridge.

[0037] The entire construction process adopts a modular construction method of on-site prefabrication and overall hoisting. Most of the welding work is completed on-site, which reduces the amount of work on board and the difficulty of construction, and improves construction efficiency and quality.

[0038] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A composite joint for the overlap of the side plate and column of a tying platform for a tying bridge, characterized in that: The system includes a binding platform, a composite side plate, a column, and a reinforcing elbow plate. The composite side plate includes an upper extension above the binding platform and a lower extension below the binding platform, which are integrally formed. The inner side of the composite side plate is fixedly connected to the side of the binding platform. A vertically arranged column is fixedly connected to the outer side of the composite side plate. A reinforcing elbow plate is fixedly connected to the top of the connection between the composite side plate and the column. The outer side of the reinforcing elbow plate is fixedly connected to the column. A semi-waist-shaped elongated hole is opened at the lower end of the reinforcing elbow plate. The upper horizontal edge of the reinforcing elbow plate, the inner horizontal edge of the semi-waist-shaped elongated hole at the lower end of the reinforcing elbow plate, and the top horizontal edge of the intersection of the composite side plate and the column are all fixedly connected to the column.

2. The composite node for the overlap of the side plate and column of the tying platform of a tying bridge according to claim 1, characterized in that: The upper extension also serves as a kickboard.

3. The construction method of the composite node for the overlapping of the side plate and column of the tying platform of a tying bridge according to claim 1, characterized in that, Includes the following steps: Step 1: Designate one side of the composite side plate of the tying bridge as the first composite side plate. On site, using the first composite side plate as a base, perform double-sided fillet welding between the side of the tying platform and the inner side of the first composite side plate to form a T-shaped assembly. The double-sided fillet welding adopts downward welding and vertical welding. Step 2: Set the composite side plate on the other side of the binding bridge as the second composite side plate. Turn the T-shaped assembly obtained in Step 1 over. Using the second composite side plate as a base, perform double-sided fillet welding on the other side of the binding platform plate and the inner side of the second composite side plate to form an I-shaped assembly. The double-sided fillet welding is performed by downward welding and vertical welding. Step 3: Place the column to be welded on the jig, and hoist the I-shaped assembly obtained in Step 2 above the column, so that the outer side of the composite side plate faces and fits against the column. After positioning, perform lap fillet welding on the outer side of the column and the composite side plate. Step 4: Process the reinforcing elbow plate on site. A semi-waist-shaped elongated hole is opened at the lower end of the reinforcing elbow plate. Install the processed reinforcing elbow plate at the top of the connection between the composite side plate and the column. Lap fillet weld the outer side of the reinforcing elbow plate to the column, and butt weld the lower horizontal edge of the reinforcing elbow plate to the top edge of the composite side plate. The upper horizontal edge of the reinforcing elbow plate, the inner horizontal edge of the semi-waist-shaped elongated hole, and the top edge of the composite side plate are all fixed by fillet weld without cutting. Step 5: Repeat steps 3 and 4 to complete the welding of the remaining columns, reinforcing elbows and corresponding composite side plates, and complete the overall assembly of the tying bridge on site. Step Six: Hoist the entire lashed bridge obtained in Step Five onto the ship, and weld the bottom of each column to the hull to complete the installation of the lashed bridge.

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