CN114875876A - Jacket assembly method adopting standardized nodes - Google Patents

Abstract

The invention relates to a jacket assembly method adopting standardized nodes, which comprises the following steps: prefabricating a main vertical surface frame of the jacket; prefabricating horizontal layer flower sheets of the jacket; prefabricating a main vertical surface X-shaped supporting pattern sheet and a side vertical surface X-shaped supporting pattern sheet of the jacket; and horizontally assembling the main vertical surface frame, the horizontal layer flower sheets, the main vertical surface X-shaped support flower sheets and the side vertical surface X-shaped support flower sheets of the prefabricated jacket to complete the assembly of the main body frame of the jacket. The jacket is divided into the standardized series of pipe nodes and rod pieces, the standardized series of pipe nodes and rod pieces can be prefabricated in batches in a factory, then welding and assembling are carried out in a construction site, the nodes and the rod pieces are assembled and welded in the construction site, automatic welding can be realized, and the construction period can be greatly shortened.

Description

A jacket assembly method using standardized nodes

technical field

The invention relates to a jacket assembly method using standardized nodes, and relates to the technical field of offshore oil and gas development.

Background technique

In the traditional jacket construction mode, the rods are prefabricated and lengthened at the construction site, and a plurality of extended rods are welded into a sheet frame, and the multiple sheet frames are finally welded into the main structure of the jacket; Welding, especially the welding of high-altitude joints, is very difficult and requires high welding quality. The joint welds are hyperboloid saddle welds, which require manual welding, and the post-weld inspection procedures are complicated. The traditional jacket site construction mode has complicated procedures and long construction time.

At present, the jacket of Bohai has achieved standardized design, and the standardized design has greatly reduced the design period, but the traditional construction mode has not gained dividends from the standardized design. With the large-scale application of standardized jackets in Bohai Sea, it is urgent to research a new jacket assembly method, which can split the jacket into standardized series of nodes and rod segments, and realize the factory batch prefabrication of standardized node series.

SUMMARY OF THE INVENTION

In view of the above problems, the purpose of the present invention is to provide a jacket assembly method using standardized nodes, which can realize automatic welding, thereby greatly shortening the construction period.

In order to achieve the above purpose of the invention, the technical solution adopted in the present invention is: a jacket assembling method using standardized nodes, comprising:

Main facade frame of prefabricated jacket;

Horizontal layers of prefabricated jackets;

The main elevation of the prefabricated jacket and the side elevation X of the flowers;

Assemble the prefabricated jacket main façade frame, horizontal layer flower piece, main façade X support piece and side elevation X support piece horizontally to complete the assembly of the jacket main frame.

The jacket assembling method further includes obtaining standardized nodes and rod segments of a pre-assembled jacket main frame, the jacket main frame is a four-leg jacket structure, including three horizontal layers and four facades frame, the lower part of the four façade frames is provided with an X-bracing, where:

Standardized nodes include:

Main leg nodes, including the bottom main leg node, the middle main leg node and the top main leg node;

X-bracing nodes, including main elevation X-bracing nodes and side elevation X-bracing nodes;

Horizontal nodes, including the bottom main facade horizontal node, the bottom side facade horizontal node, the middle layer main facade horizontal node, the middle layer side facade horizontal node, the top main facade horizontal node and the top side facade horizontal node;

Rod segment: The remaining rods after the main frame of the jacket is removed from the node are prefabricated into rod segments, including the main leg pipe segment, the main elevation X strut segment, the main elevation horizontal strut segment, and the bottom side elevation level. The strut member segment, the bottom longitudinal support member segment, the bottom layer diagonal strut member segment and the side elevation X strut member segment.

Said jacket assembling method, further, prefabricating the main facade frame, comprising:

Prefabricated main legs;

Prefabricated main façade X braces;

Prefabricated horizontal tie bars on the main façade on the ground floor, horizontal tie bars on the main façade on the middle floor and horizontal tie bars on the main façade on the top floor;

Prefabricated main facade frame.

Said jacket assembling method, further, prefabricating main legs, comprising:

Weld a plurality of main leg pipe sections to lengthen the main leg section;

Butt-welding the two main leg extension sections with the bottom main leg node, the middle main leg node and the top main leg node in turn to complete the prefabrication of one main leg;

Prefab the other three main legs following the same procedure.

The described jacket assembling method, further, prefabricating the main facade X-bracing piece, comprising:

Weld a plurality of main façade X struts to the long section of the main façade X braces;

Butt-weld the X-bracing nodes of the main facade and the four long-sections of the main facade X-bracing in turn to complete the prefabrication of a main facade X-bracing piece;

According to the same process, prefabricate another main facade X-pattern.

In the jacket assembling method, further, prefabricating the horizontal tie bars of the main facade of the bottom layer, the horizontal tie bars of the main facade of the middle layer and the horizontal tie bars of the main facade of the top layer, including:

Weld the length of a plurality of horizontal struts on the main facade of the ground floor to form the horizontal bracing length of the main facade on the ground floor;

The horizontal node of the bottom main facade and the two long sections of the horizontal bracing of the bottom main facade are butt welded in turn to complete the prefabrication of a horizontal tie bar of the bottom main facade;

Prefabricate another horizontal tie bar on the main facade of the ground floor according to the same procedure;

Using a similar process, the prefabrication of the two middle-level main façade horizontal ties and the two top-level main façade horizontal ties is completed.

Said jacket assembling method, further, prefabricating the main facade frame, comprising:

First of all, the two main legs are butt welded with the X-bracing pieces of the main facade to form a stable frame;

Then, butt welding is performed with the horizontal tie bars of the main façade of the bottom layer, the horizontal tie bars of the main façade of the middle layer, and the horizontal tie bars of the main façade of the top floor in turn to complete the prefabrication of a main façade frame;

Finally, another main façade frame is prefabricated following the same procedure.

Described jacket assembling method, further, prefabricating horizontal layer flower pieces, comprising:

Complete the welding lengths of four horizontal bracing lengths on the side elevation of the ground floor, the welding lengths of one vertical supporting connecting length on the ground floor, and the welding connecting lengths of the four diagonal bracing lengths on the ground floor;

Butt-weld the two bottom side elevation horizontal nodes in turn with the bottom side elevation horizontal bracing long section, the bottom longitudinal supporting long section and the bottom diagonal bracing long section to complete the prefabrication of the bottom horizontal layer;

Similar processes are used to complete the prefabrication of the middle horizontal layer and the top horizontal layer 30 .

Said jacket assembling method, further, prefabricating side elevation X-bracing pieces, comprising:

A plurality of side elevation X brace member segments are welded and lengthened into a side elevation X brace connection length;

The side elevation X bracing nodes and the four side elevation X bracing long sections are butt welded in turn to complete the prefabrication of a side elevation X bracing sheet;

According to the same procedure, prefabricate the other side elevation X-pattern.

The described jacket assembly method, further, completes the assembly of the jacket main body frame, including:

lay a main façade frame flat on the site;

The bottom horizontal layer pattern, the middle horizontal layer pattern, the top horizontal layer and the two side elevation X-bracing pieces are hoisted vertically by the crawler crane to be butt welded to the main facade frame in turn;

The other main facade frame is hoisted horizontally by the crawler crane to complete the assembly of the main frame of the jacket.

The present invention has the following characteristics due to adopting the above technical solutions:

1. In the present invention, the jacket is divided into standardized series of pipe joints and rod segments. The standardized series of pipe joints and rod segments can be prefabricated in batches in the factory, and then welded and assembled at the construction site. Assembling and welding with rods can realize automatic welding, which can greatly shorten the construction period.

2. The main structure of the jacket in the present invention can be divided into standardized series of nodes and rod segments. The standardized series of nodes and rod segments can be prefabricated in batches in the factory, and then assembled and welded at the construction site. , There is only one butt weld for the length of the rod segment and the welding with the node, and the field welding is butt welding. The welding and inspection procedures are simple and the welding quality is high.

In conclusion, the present invention can be widely used in jacket assembly.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. The same reference numerals are used to refer to the same parts throughout the drawings. In the attached image:

FIG. 1 is a schematic diagram of the effect of the main frame of the jacket in an embodiment of the present invention;

2 is a schematic diagram of the effect of a main leg node in an embodiment of the present invention;

3 is a schematic diagram of the effect of an X support node in an embodiment of the present invention;

4 is a schematic diagram of the effect of a horizontal layer node in an embodiment of the present invention;

5 is a schematic diagram of the effect of the main leg assembly process in the embodiment of the present invention;

FIG. 6 is a schematic diagram of the effect of the assembly process of the main facade frame in the embodiment of the present invention;

7 is a schematic diagram of the effect of the horizontal layer flower piece assembly process in the embodiment of the present invention;

8 is a schematic diagram of the effect of the assembling process of the side elevation X-bracing piece in the embodiment of the present invention;

FIG. 9 is a schematic diagram of the effect of the assembly process of the main frame of the jacket in the embodiment of the present invention.

Detailed ways

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" can also be intended to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated features, steps, operations, elements and/or components, but do not preclude the presence or addition of one or Various other features, steps, operations, elements, components, and/or combinations thereof. Method steps, procedures, and operations described herein are not to be construed as requiring that they be performed in the particular order described or illustrated, unless an order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be restricted by these terms. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature to another element or feature as shown in the figures, such as "inner", "outer", "inner" ", "outside", "below", "above", etc. This spatially relative term is intended to include different orientations of the device in use or operation other than the orientation depicted in the figures.

The jacket assembling method using standardized nodes provided by the present invention includes: a main facade frame of a prefabricated jacket; a horizontal layer flower piece of the prefabricated jacket; the main facade X-bracing piece and the side facade X-bracing of the prefabricated jacket Flower pieces; horizontally assemble the main facade frame, horizontal layer flower pieces, main facade X support pieces and side elevation X support pieces of the prefabricated jacket to complete the assembly of the jacket main frame. The invention splits the jacket into a standardized series of pipe joints and rod segments, and the standardized series of pipe joints and rod segments can be prefabricated in batches in a factory, then welded and assembled at the construction site, and the nodes and rods can be assembled at the construction site. Assembling and welding the parts can realize automatic welding, which can greatly shorten the construction period.

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more thoroughly understood, and will fully convey the scope of the present invention to those skilled in the art.

The method for assembling a jacket using standardized nodes provided in this embodiment includes the following steps:

S1. Obtain standardized nodes and rod segments of the pre-assembled jacket body frame 1

Specifically, as shown in FIG. 1 , the pre-assembled jacket main frame 1 of this embodiment is a four-leg jacket structure, including three horizontal layers and four vertical frames, each of which is provided with an X at the lower part of the four vertical frames. There are two main façade frames on the left and right sides, and two side façade frames on the other two sides.

As shown in Figures 2 to 4, all nodes in the main frame 1 of the jacket are split and divided into standardized series:

The main leg nodes are divided into three standardized node series: the bottom main leg node 2, the middle main leg node 3 and the top main leg node 4, and each series has 4 nodes;

The X-bracing nodes are divided into two standardized node series: the main elevation X-bracing node 5 and the side elevation X-bracing node 6, and each series has 2 nodes;

The horizontal nodes are divided into the main facade horizontal node 7 on the ground floor, the horizontal node 8 on the bottom side facade, the horizontal node 9 on the middle layer main facade, the horizontal node 10 on the middle layer side facade, the horizontal node 11 on the top main facade and the horizontal node on the top side facade. 12 A total of six normalized node series, each series has 2 nodes.

All the above-mentioned standardized node series are prefabricated in the factory, and the remaining members of the jacket main structure 1 after the nodes are removed are prefabricated into member segments in the factory. The rod segment in this embodiment mainly includes the main leg pipe segment, the main elevation X strut segment, the main elevation horizontal strut segment, the bottom side elevation horizontal strut segment, the bottom longitudinal support rod segment, and the bottom oblique strut segment. The strut segment and the side elevation X strut segment, etc. The prefabricated nodes and rod segments are transported to the construction site for prefabricated welding construction after passing the inspection.

S2. The prefabricated main facade frame 22 includes:

S21, the main leg 15 of the main frame of the prefabricated jacket

As shown in Figure 5, a plurality of main leg pipe sections 13 are welded to the main leg extension section 14, and the two main leg extension sections 14 are connected to the bottom main leg node 2, the middle main leg node 3 and the top main leg node 4. Perform butt welding in sequence to complete the prefabrication of one main leg 15, and prefabricate the other three main legs 15 according to the same process.

S22, prefabricated main facade X flower support 17

As shown in Fig. 6, a plurality of main elevation X brace member segments are welded to length the main elevation X brace connection length 16, and the main elevation X brace node 5 and the four main elevation X braces are connected to the long segment 16 Perform butt welding in sequence to complete the prefabrication of one main elevation X-pattern 17, and prefabricate another main elevation X-pattern 17 according to the same process.

S23, prefabricated bottom main facade horizontal tie bars, middle layer main façade horizontal tie bars and top main façade horizontal tie bars

As shown in Fig. 6, a plurality of bottom main elevation horizontal strut members are welded and lengthened into the bottom main elevation horizontal bracing long section 18, and the bottom main elevation horizontal node 7 and the two bottom main elevation horizontal braces are The extension sections 18 are butt welded in sequence to complete the prefabrication of one horizontal tie bar 19 on the main facade of the bottom layer, and another horizontal tie bar 19 on the main facade of the bottom floor is prefabricated according to the same process. Using a similar process, the prefabrication of the two middle-level main facade horizontal ties 20 and the two top-level main façade horizontal ties 21 is completed.

S24. Prefabricated main facade frame 22

As shown in FIG. 6 , the two main legs 15 are first butt welded with the main facade X-bracing piece 17 to form a stable frame, and then the horizontal tie bars 19 of the bottom main façade and the horizontal tie bars 20 of the middle main façade are sequentially connected. And the horizontal tie bars 21 of the top main facade are butt welded to complete the prefabrication of one main facade frame 22, and the other main facade frame 22 is prefabricated according to the same process.

S3, prefabricated horizontal layer pattern 26

As shown in Fig. 7 and Fig. 9, the welding length of four bottom side elevation horizontal bracing long sections 23, one bottom longitudinal supporting long section 24 and four bottom layer diagonal bracing long sections are respectively completed. 25 of the welding length, the two bottom side elevation horizontal nodes 8 are sequentially butt welded with the bottom side elevation horizontal bracing long section 23, the bottom longitudinal supporting long section 24 and the bottom diagonal bracing long section 25 to complete the bottom. The prefabrication of the horizontal layer flower piece 26. Using a similar process, the prefabrication of the middle horizontal layer pattern 29 and the top horizontal layer pattern 30 is completed.

S4, prefabricated side elevation X flower support 28

As shown in FIG. 8 , a plurality of side elevation X brace members are welded and lengthened into a side elevation X brace connection length 27, and the side elevation X brace node 6 is connected to the four side elevation X brace length segments. 27 Perform butt welding in sequence to complete the prefabrication of one side elevation X-pattern 28, and prefabricate the other side elevation X-pattern 28 according to the same process.

S5, horizontally assemble the prefabricated main facade X support pieces 17, main facade frame 22, horizontal layer flower pieces and side elevation X support pieces 28 to complete the assembly of the main frame of the jacket

As shown in FIG. 9 , a main facade frame 22 is placed flat on the site, and the bottom horizontal layer tiles 26, the middle horizontal layer tiles 29, the top horizontal layer tiles 30 and the two side elevations X are vertically hoisted by the crawler crane. The flower struts 28 are butt-welded with the main elevation frame 22 in sequence, and finally the other main elevation frame 22 is hoisted horizontally by the crawler crane to complete the assembly and closure of the jacket main frame 1 .

The various embodiments in this specification are described in a progressive manner, and the same and similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from other embodiments. In the description of this specification, reference to the description of the terms "one embodiment", "some implementations", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one implementation of the embodiment of this specification example or example. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. a jacket assembling method using standardized nodes is characterized in that, comprising: Main facade frame of prefabricated jacket; Horizontal layers of prefabricated jackets; The main elevation of the prefabricated jacket and the side elevation X of the flowers; Assemble the prefabricated jacket main façade frame, horizontal layer flower piece, main façade X support piece and side elevation X support piece horizontally to complete the assembly of the jacket main frame. 2. The method for assembling a jacket using standardized nodes according to claim 1, further comprising obtaining standardized nodes and rod segments of a pre-assembled jacket main frame, wherein the jacket main frame is a four-leg jacket structure , consisting of three horizontal layers and four façade frames, each with an X-bracing below, where: Standardized nodes include: Main leg nodes, including the bottom main leg node, the middle main leg node and the top main leg node; X-bracing nodes, including main elevation X-bracing nodes and side elevation X-bracing nodes; Horizontal nodes, including the bottom main facade horizontal node, the bottom side facade horizontal node, the middle layer main facade horizontal node, the middle layer side facade horizontal node, the top main facade horizontal node and the top side facade horizontal node; Rod section: the remaining rods after the main frame of the jacket is removed from the node are prefabricated into rod sections, including the main leg pipe section, the main elevation X strut section, the main elevation horizontal strut section, and the bottom side elevation horizontal The strut member segment, the bottom longitudinal support member segment, the bottom layer diagonal strut member segment and the side elevation X strut member segment. 3. The method for assembling a jacket using standardized nodes according to claim 2, wherein the prefabricated main facade frame comprises: Prefabricated main legs; Prefabricated main façade X braces; Prefabricated horizontal tie bars on the main façade on the ground floor, horizontal tie bars on the main façade on the middle floor and horizontal tie bars on the main façade on the top floor; Prefabricated main facade frame. 4. The method for assembling a jacket using standardized nodes according to claim 3, wherein the prefabricated main legs comprise: Weld a plurality of main leg pipe sections to lengthen the main leg section; Butt-welding the two main leg extension sections with the bottom main leg node, the middle main leg node and the top main leg node in turn to complete the prefabrication of one main leg; Prefab the other three main legs following the same procedure. 5. The jacket assembling method using standardized nodes according to claim 3, is characterized in that, the prefabricated main facade X-patterns comprise: Weld a plurality of main façade X struts to the long section of the main façade X braces; Butt-weld the X-bracing nodes of the main facade and the four long-sections of the main facade X-bracing in turn to complete the prefabrication of a main facade X-bracing piece; According to the same process, prefabricate another main facade X-pattern. 6. The jacket assembling method using standardized nodes according to claim 3, wherein the prefabricated bottom main elevation horizontal tie bars, middle layer main elevation horizontal tie bars and top main elevation horizontal tie bars, comprising: Weld the length of a plurality of horizontal struts on the main facade of the ground floor to form the horizontal bracing length of the main facade on the ground floor; The horizontal node of the bottom main facade and the two long sections of the horizontal bracing of the bottom main facade are butt welded in turn to complete the prefabrication of a horizontal tie bar of the bottom main facade; Prefabricate another horizontal tie bar on the main facade of the ground floor according to the same procedure; Using a similar process, the prefabrication of the two middle-level main façade horizontal ties and the two top-level main façade horizontal ties is completed. 7. The method for assembling a jacket using standardized nodes according to claim 3, wherein the prefabricated main facade frame comprises: First of all, the two main legs are butt welded with the X-bracing pieces of the main facade to form a stable frame; Then, butt welding is performed with the horizontal tie bars of the main façade of the bottom layer, the horizontal tie bars of the main façade of the middle layer, and the horizontal tie bars of the main façade of the top floor in turn to complete the prefabrication of a main façade frame; Finally, another main façade frame is prefabricated following the same procedure. 8. The jacket assembling method using standardized nodes according to claim 2, is characterized in that, the prefabricated horizontal layer pattern comprises: Complete the welding lengths of four horizontal bracing lengths on the side elevation of the ground floor, the welding lengths of one vertical supporting connecting length on the ground floor, and the welding connecting lengths of the four diagonal bracing lengths on the ground floor; Butt-weld the two bottom side elevation horizontal nodes in turn with the bottom side elevation horizontal bracing long section, the bottom longitudinal supporting long section and the bottom diagonal bracing long section to complete the prefabrication of the bottom horizontal layer; Similar processes are used to complete the prefabrication of the middle horizontal layer and the top horizontal layer 30 . 9. The jacket assembling method using standardized nodes according to claim 2, is characterized in that, the prefabricated side elevation X-patterns comprise: A plurality of side elevation X brace member segments are welded and lengthened into a side elevation X brace connection length; The side elevation X bracing nodes and the four side elevation X bracing long sections are butt welded in turn to complete the prefabrication of a side elevation X bracing sheet; According to the same procedure, prefabricate the other side elevation X-pattern. 10. The jacket assembling method using standardized nodes according to claim 2, characterized in that, completing the assembly of the jacket main body frame, comprising: lay a main façade frame flat on the site; The bottom horizontal layer pattern, the middle horizontal layer pattern, the top horizontal layer and the two side elevation X-bracing pieces are hoisted vertically by the crawler crane to be butt welded to the main facade frame in turn; The other main facade frame is hoisted horizontally by the crawler crane to complete the assembly of the main frame of the jacket.

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