CN210194588U - Novel jacket ocean platform anti-seismic structure system with buckling restrained brace - Google Patents
Novel jacket ocean platform anti-seismic structure system with buckling restrained brace Download PDFInfo
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- CN210194588U CN210194588U CN201821847518.9U CN201821847518U CN210194588U CN 210194588 U CN210194588 U CN 210194588U CN 201821847518 U CN201821847518 U CN 201821847518U CN 210194588 U CN210194588 U CN 210194588U
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Abstract
The utility model discloses a novel system of a jacket ocean platform anti-seismic structure containing buckling restrained brace, which comprises jacket supporting legs, traditional horizontal connecting bracing tubes for connecting adjacent supporting legs and buckling restrained brace; the buckling restrained brace is used for replacing an inclined supporting tube, namely the buckling restrained brace is arranged in the range of a trapezoidal area formed by adjacent supporting legs and adjacent horizontal connecting supporting tubes; the structure makes full use of the characteristics of high strength, high rigidity and good hysteretic performance of the buckling restrained brace through the arrangement of the buckling restrained brace, so that the structure has better anti-seismic performance than a traditional jacket platform under an earthquake.
Description
Technical Field
The utility model relates to a jacket platform structure, in particular to new system of jacket platform anti-seismic structure who contains bucking restraint support.
Background
With the implementation of ocean strategies in China, the research and the application of ocean engineering equipment draw more and more attention of people, and more ocean engineering equipment is being developed and used. The jacket ocean platform is one of the mainstream forms of the existing ocean energy development equipment due to the fact that the structure form is relatively simple and the safety performance is relatively good. The existing jacket ocean platform structure consists of supporting legs, horizontal stay tubes and inclined stay bars, and is mainly a three-dimensional truss formed by welding round steel tubes or section steel. The section of the circular steel tube is isotropic, so that the circular steel tube is convenient to machine and form, the structure is convenient to manufacture, and the circular steel tube is a closed section, has relatively small contact area with seawater and is beneficial to corrosion prevention; in the construction, the weight of the structure in seawater can be reduced by utilizing buoyancy. The jacket platform is also very complex to load because it is in a very complex marine environment of gravity, construction, wind and waves, even earthquakes. Compared with environmental loads such as wind, waves, flow, ice and the like, the uncertainty and randomness of the earthquake are more obvious, and the method is particularly suitable for submarine earthquakes. The service life of the platform is generally long, and a plurality of platforms are positioned in a coastal earthquake high-incidence area, so that the earthquake load effect needs to be considered in the platform design, and the structure can be ensured to be in service after being subjected to a fortification intensity earthquake without needing or after being generally maintained. The earthquake-resistant performance of the structure is improved by improving the material property and increasing the structure size, and the earthquake-resistant performance of the structure is not improved by aiming at a structural system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a new system of jacket platform anti-seismic structure that contains bucking restraint support:
the first scheme is as follows:
the device comprises a platform, a jacket and a plurality of buckling restrained braces arranged on the jacket.
The platform is supported by the jacket. The jacket is formed by combining jacket supporting legs and horizontal connecting supporting tubes.
The jacket supporting legs are provided with N, and N is more than or equal to 4. The jacket support legs are fixed at their lower ends to the mounting surface and at their upper ends to hold and support the platform.
All the horizontal connecting stay tubes are parallel to the horizontal plane. Two ends of each horizontal connecting support pipe are connected with adjacent jacket support legs. N horizontal connection stay tube is a set of, and same group of horizontal connection stay tube is in same horizontal plane to constitute an N limit shape.
The upper and lower groups of horizontal connecting stay tubes and jacket support legs between the upper and lower groups of horizontal connecting stay tubes jointly form a subframe. N sides of the sub-frame are all quadrilateral frames. Four corners of the quadrilateral frame are nodes.
Each quadrilateral frame is provided with a buckling restrained brace. And two ends of the buckling restrained brace are respectively connected or hinged on the two nodes. These two nodes are located at opposite corners of the quadrilateral frame.
Further, N equals four. I.e., having four jacket support legs.
The nodes of a quadrilateral frame are sequentially marked as a node A, a node B, a node C and a node D. The A node and the C node are positioned at opposite corners of the quadrilateral frame, and the A node and the B node are positioned above the C node and the D node.
If the buckling restrained brace is installed on the node A and the node C of one quadrilateral frame, the buckling restrained braces are installed on the node B and the node D of two quadrilateral frames adjacent to the quadrilateral frame.
Scheme II:
the device comprises a platform, a jacket and a plurality of buckling restrained braces arranged on the jacket.
The platform is supported by the jacket. The jacket is formed by combining jacket supporting legs and horizontal connecting supporting tubes.
The jacket supporting legs are provided with N, and N is more than or equal to 4. The jacket support legs are fixed at their lower ends to the mounting surface and at their upper ends to hold and support the platform.
All the horizontal connecting stay tubes are parallel to the horizontal plane. Two ends of each horizontal connecting support pipe are connected with adjacent jacket support legs. N horizontal connection stay tube is a set of, and same group of horizontal connection stay tube is in same horizontal plane to constitute an N limit shape.
The upper and lower groups of horizontal connecting stay tubes and jacket support legs between the upper and lower groups of horizontal connecting stay tubes jointly form a subframe. N sides of the sub-frame are all quadrilateral frames. Four corners of the quadrilateral frame are nodes.
Each quadrilateral frame is provided with two buckling restrained braces. The two buckling restrained braces are arranged in a V shape. One end of each buckling restrained brace is connected to the node, and the other end is connected to the horizontal connection stay tube.
The third scheme is as follows:
the device comprises a platform, a jacket and a plurality of buckling restrained braces arranged on the jacket.
The platform is supported by the jacket. The jacket is formed by combining jacket supporting legs and horizontal connecting supporting tubes.
The jacket supporting legs are provided with N, and N is more than or equal to 4. The jacket support legs are fixed at their lower ends to the mounting surface and at their upper ends to hold and support the platform.
All the horizontal connecting stay tubes are parallel to the horizontal plane. Two ends of each horizontal connecting support pipe are connected with adjacent jacket support legs. N horizontal connection stay tube is a set of, and same group of horizontal connection stay tube is in same horizontal plane to constitute an N limit shape.
The upper and lower groups of horizontal connecting stay tubes and jacket support legs between the upper and lower groups of horizontal connecting stay tubes jointly form a subframe. N sides of the sub-frame are all quadrilateral frames. Four corners of the quadrilateral frame are nodes.
Each quadrilateral frame is provided with two buckling restrained braces. The two buckling restrained braces are arranged in an inverted V shape. One end of each buckling restrained brace is connected to the node, and the other end is connected to the horizontal connection stay tube.
Further, in the present invention,
n equals four. I.e., having four jacket support legs.
One end of each buckling restrained brace is fixed at the midpoint of the horizontal bracing tube.
Furthermore, the jacket supporting legs and the horizontal connecting supporting tubes are all made of round steel tubes.
Further, the jacket support legs are distributed about a vertical centerline axis of the platform.
The bottoms of jacket supporting legs below the uppermost group of horizontal connecting supporting tubes are outwards forked, and the tops of the jacket supporting legs are inwards folded, so that the quadrilateral frame is a trapezoidal frame.
Further, the bottoms of the jacket support legs above the uppermost group of horizontally connected support tubes are folded inwards, and the tops of the jacket support legs are unfolded outwards, so that the platform is supported.
Further, the core material outer cylinder of the buckling restrained brace is a cylinder.
The two ends of the buckling restrained brace are connecting ends. The connecting ends are two ends of the core material or end plates connected to two ends of the buckling restrained brace.
The connecting end is connected with the connecting plate.
Further, the connecting plate is welded at the node. The connecting plate is welded on the pipe wall of the horizontal connecting support pipe.
By adopting the novel jacket anti-seismic structure system with the buckling restrained brace, the buckling restrained brace replaces an inclined brace rod on a traditional jacket (comprising a four-leg jacket, an eight-leg jacket and the like) to form a complete novel jacket anti-seismic structure system. Under the action of small stress or static force, the buckling restrained brace plays the role of a traditional brace rod; the characteristics of shock absorption and energy consumption which are not possessed by the traditional stay bar can be exerted in the strong earthquake.
The novel system of the jacket ocean platform anti-seismic structure containing the buckling restrained brace fully utilizes the characteristics of high bearing-energy consumption of the brace, overcomes the defects of buckling instability and insufficient energy consumption of the traditional brace rod under the condition of compression, and meets the requirement of anti-seismic.
Drawings
FIG. 1 is a schematic structural view of a buckling restrained brace
FIG. 2 is a schematic structural view of a buckling restrained brace installed in a monocline manner
FIG. 3 is a schematic structural view of a buckling restrained brace installed in a V-shaped manner
FIG. 4 is a schematic structural view of a buckling restrained brace installed in a herringbone manner
In the figure: 1. jacket supporting legs, 2 horizontal connecting supporting tubes, 3 buckling restrained brace, 12 connecting plates, nodes and 21 connecting plates.
Detailed Description
The present invention will be further described with reference to the following examples, but it should not be construed that the scope of the present invention is limited to the following examples. Various substitutions and modifications can be made without departing from the technical spirit of the invention and according to the common technical knowledge and conventional means in the field, and all shall be included in the scope of the invention.
Example 1:
the utility model provides a new system of jacket platform anti-seismic structure that contains bucking restraint and support which characterized in that:
comprises a platform, a jacket and a plurality of buckling restrained braces 3 arranged on the jacket.
The platform is supported by the jacket. The jacket is formed by combining jacket supporting legs 1 and horizontal connecting supporting tubes 2.
The jacket support legs have four. The jacket support legs 1 are fixed at their lower ends to the mounting surface and at their upper ends to support the platform.
All the horizontally connected stay tubes 2 are parallel to the horizontal plane. Two ends of each horizontal connecting support tube 2 are connected with adjacent jacket support legs 1. The four horizontal connecting support tubes 2 are in a group, and the same group of horizontal connecting support tubes 2 are in the same horizontal plane, so that a quadrangle is formed.
The upper and lower groups of horizontal connecting stay tubes 2 and the jacket support legs 1 between the upper and lower groups of horizontal connecting stay tubes 2 jointly form a subframe. Four sides of the sub-frame are all quadrilateral frames. The four corners of the quadrilateral frame are nodes 12.
Each quadrilateral frame is provided with a buckling restrained brace 3. Two ends of the buckling restrained brace 3 are respectively connected or hinged on the two nodes 12. These two nodes 12 are located at opposite corners of the quadrilateral frame.
Further, referring to fig. 1, the nodes 12 of one quadrilateral frame are denoted as a node a, a node B, a node C, and a node D in this order. The A node and the C node are positioned at opposite corners of the quadrilateral frame, and the A node and the B node are positioned above the C node and the D node.
If the buckling restrained brace 3 is installed on the node A and the node C of one quadrilateral frame, the buckling restrained braces 3 are installed on the node B and the node D of two quadrilateral frames adjacent to the quadrilateral frame.
Example 2:
the utility model provides a new system of jacket platform anti-seismic structure that contains bucking restraint and support which characterized in that:
comprises a platform, a jacket and a plurality of buckling restrained braces 3 arranged on the jacket.
The platform is supported by the jacket. The jacket is formed by combining jacket supporting legs 1 and horizontal connecting supporting tubes 2.
The jacket supporting legs 1 are four, and four are more than or equal to 4. The jacket support legs 1 are fixed at their lower ends to the mounting surface and at their upper ends to support the platform.
All the horizontally connected stay tubes 2 are parallel to the horizontal plane. Two ends of each horizontal connecting support tube 2 are connected with adjacent jacket support legs 1. The four horizontal connecting support tubes 2 are in a group, and the same group of horizontal connecting support tubes 2 are in the same horizontal plane, so that a quadrangle is formed.
The upper and lower groups of horizontal connecting stay tubes 2 and the jacket support legs 1 between the upper and lower groups of horizontal connecting stay tubes 2 jointly form a subframe. Four sides of the sub-frame are all quadrilateral frames. The four corners of the quadrilateral frame are nodes 12.
Each quadrilateral frame is provided with two buckling-restrained braces 3. The two buckling restrained braces 3 are arranged in a V shape. One end of each buckling restrained brace 3 is connected to the node 12, and the other end is connected to the horizontal connecting bracing tube 2. The lower ends of the two buckling restrained braces 3 are fixed at the middle point of the lower horizontal stay tube 2.
Example 3:
the utility model provides a new system of jacket platform anti-seismic structure that contains bucking restraint and support which characterized in that:
comprises a platform, a jacket and a plurality of buckling restrained braces 3 arranged on the jacket.
The platform is supported by the jacket. The jacket is formed by combining jacket supporting legs 1 and horizontal connecting supporting tubes 2.
The jacket supporting legs 1 are four, and four are more than or equal to 4. The jacket support legs 1 are fixed at their lower ends to the mounting surface and at their upper ends to support the platform.
All the horizontally connected stay tubes 2 are parallel to the horizontal plane. Two ends of each horizontal connecting support tube 2 are connected with adjacent jacket support legs 1. The four horizontal connecting support tubes 2 are in a group, and the same group of horizontal connecting support tubes 2 are in the same horizontal plane, so that a quadrangle is formed.
The upper and lower groups of horizontal connecting stay tubes 2 and the jacket support legs 1 between the upper and lower groups of horizontal connecting stay tubes 2 jointly form a subframe. Four sides of the sub-frame are all quadrilateral frames. The four corners of the quadrilateral frame are nodes 12.
Each quadrilateral frame is provided with two buckling-restrained braces 3. The two buckling restrained braces 3 are arranged in an inverted V shape. One end of each buckling restrained brace 3 is connected to the node 12, and the other end is connected to the horizontal connecting bracing tube 2. The upper ends of the two buckling restrained braces 3 are fixed at the middle point of the upper horizontal stay tube 2.
Example 4:
the main structure of this embodiment is the same as embodiment 1, 2 or 3.
Further, the jacket supporting leg 1 and the horizontal connecting supporting tube 2 are both made of round steel tubes. The jacket support legs 1 are distributed around the vertical mid-axis of the platform.
The bottoms of jacket supporting legs 1 below the uppermost group of horizontal connecting supporting tubes 2 are outwards forked and the tops of the jacket supporting legs are inwards furled, so that the quadrilateral frame is a trapezoidal frame.
The core material outer cylinder of the buckling restrained brace 3 is a cylinder. The bottom of the jacket supporting legs 1 above the uppermost group of horizontal connecting supporting tubes 2 is folded inwards, and the top is unfolded outwards so as to support the platform.
Example 5:
the main structure of this embodiment is the same as embodiment 1, 2 or 3.
Further, the two ends of the buckling restrained brace 3 are connecting ends 301. The connecting ends 301 are both ends of the core material or end plates connected to both ends of the buckling-restrained brace 3.
The connecting end 301 is connected to the connecting plate 21.
In the embodiment, the connecting end 301 is connected with the connecting plate 21 by a high-strength bolt or welding mode, so that the reliable connection of the connecting end and the connecting plate under load is ensured.
The connecting plate 21 is welded to the node 12.
The connecting plate 21 is welded on the pipe wall of the horizontal connecting support pipe 2.
Claims (10)
1. The utility model provides a new system of jacket platform anti-seismic structure that contains bucking restraint and support which characterized in that:
comprises a platform, a jacket and a plurality of buckling restrained braces (3) arranged on the jacket;
the platform is supported by the jacket; the jacket is formed by combining jacket supporting legs (1) and horizontal connecting supporting tubes (2);
the jacket supporting legs (1) are provided with N pieces, and N is more than or equal to 4; the lower ends of the jacket supporting legs (1) are fixed on the installation surface, and the upper ends of the jacket supporting legs are fixed and support the platform;
all the horizontal connecting bracing tubes (2) are parallel to the horizontal plane; two ends of each horizontal connecting support pipe (2) are connected with adjacent jacket support legs (1); the N horizontal connecting stay tubes (2) form a group, and the same group of horizontal connecting stay tubes (2) are positioned on the same horizontal plane, so that an N-edge shape is formed;
the upper and lower groups of horizontal connecting support pipes (2) and jacket support legs (1) between the upper and lower groups of horizontal connecting support pipes (2) form a subframe together; the N side surfaces of the sub-frame are all quadrilateral frames; four corners of the quadrilateral frame are nodes (12);
each quadrilateral frame is provided with a buckling restrained brace (3); two ends of the buckling restrained brace (3) are respectively connected to the two nodes (12) in a bolt connection mode, a hinged connection mode and a welding connection mode; the two nodes (12) are located at opposite corners of the quadrilateral frame.
2. The new architecture of a jacket ocean platform seismic structure with buckling restrained braces as claimed in claim 1, wherein:
n is equal to four; namely four jacket support legs (1);
the nodes (12) of one quadrilateral frame are sequentially marked as an A node, a B node, a C node and a D node; the node A and the node C are positioned at opposite angles of the quadrilateral frame, and the node A and the node B are positioned above the node C and the node D;
if the buckling restrained brace (3) is installed on the node A and the node C of one quadrilateral frame, the buckling restrained braces (3) are installed on the node B and the node D of two quadrilateral frames adjacent to the quadrilateral frame.
3. The utility model provides a new system of jacket platform anti-seismic structure that contains bucking restraint and support which characterized in that:
comprises a platform, a jacket and a plurality of buckling restrained braces (3) arranged on the jacket;
the platform is supported by the jacket; the jacket is formed by combining jacket supporting legs (1) and horizontal connecting supporting tubes (2);
the jacket supporting legs (1) are provided with N pieces, and N is more than or equal to 4; the lower ends of the jacket supporting legs (1) are fixed on the installation surface, and the upper ends of the jacket supporting legs are fixed and support the platform;
all the horizontal connecting bracing tubes (2) are parallel to the horizontal plane; two ends of each horizontal connecting support pipe (2) are connected with adjacent jacket support legs (1); the N horizontal connecting stay tubes (2) form a group, and the same group of horizontal connecting stay tubes (2) are positioned on the same horizontal plane, so that an N-edge shape is formed;
the upper and lower groups of horizontal connecting support pipes (2) and jacket support legs (1) between the upper and lower groups of horizontal connecting support pipes (2) form a subframe together; the N side surfaces of the sub-frame are all quadrilateral frames; four corners of the quadrilateral frame are nodes (12);
each quadrilateral frame is provided with two buckling restrained braces (3); the two buckling restrained braces (3) are arranged in a V shape; one end of each buckling restrained brace (3) is connected to the node (12) and the other end is connected to the horizontal connecting bracing tube (2).
4. The utility model provides a new system of jacket platform anti-seismic structure that contains bucking restraint and support which characterized in that:
comprises a platform, a jacket and a plurality of buckling restrained braces (3) arranged on the jacket;
the platform is supported by the jacket; the jacket is formed by combining jacket supporting legs (1) and horizontal connecting supporting tubes (2);
the jacket supporting legs (1) are provided with N pieces, and N is more than or equal to 4; the lower ends of the jacket supporting legs (1) are fixed on the installation surface, and the upper ends of the jacket supporting legs are fixed and support the platform;
all the horizontal connecting bracing tubes (2) are parallel to the horizontal plane; two ends of each horizontal connecting support pipe (2) are connected with adjacent jacket support legs (1); the N horizontal connecting stay tubes (2) form a group, and the same group of horizontal connecting stay tubes (2) are positioned on the same horizontal plane, so that an N-edge shape is formed;
the upper and lower groups of horizontal connecting support pipes (2) and jacket support legs (1) between the upper and lower groups of horizontal connecting support pipes (2) form a subframe together; the N side surfaces of the sub-frame are all quadrilateral frames; four corners of the quadrilateral frame are nodes (12);
each quadrilateral frame is provided with two buckling restrained braces (3); the two buckling restrained braces (3) are arranged in an inverted V shape; one end of each buckling restrained brace (3) is connected to the node (12) and the other end is connected to the horizontal connecting bracing tube (2).
5. The new architecture of a jacket ocean platform seismic structure with buckling restrained braces as claimed in claim 4, wherein:
n is equal to four; namely four jacket support legs (1);
one end of each buckling restrained brace (3) is fixed at the midpoint of the horizontal connecting bracing tube (2).
6. The new architecture of a jacket ocean platform seismic structure with buckling restrained braces as claimed in claim 4, wherein: the jacket supporting legs (1) and the horizontal connecting supporting tubes (2) are all made of round steel tubes.
7. The new architecture of a jacket ocean platform seismic structure with buckling restrained braces as claimed in claim 4, wherein: the jacket support legs (1) are distributed around the vertical central axis of the platform;
the bottoms of jacket supporting legs (1) below the uppermost group of horizontal connecting supporting tubes (2) are outwards forked, and the tops of the jacket supporting legs are inwards folded, so that the quadrilateral frame is a trapezoidal frame.
8. The new architecture of a jacket ocean platform seismic structure with buckling restrained braces as claimed in claim 7, wherein: the bottoms of jacket supporting legs (1) above the uppermost group of horizontal connecting supporting tubes (2) are folded inwards, and the tops of the jacket supporting legs are unfolded outwards so as to support the platform.
9. The new architecture of a jacket ocean platform seismic structure with buckling restrained braces as claimed in claim 4, wherein:
the core material outer cylinder of the buckling restrained brace (3) is a cylinder;
the two ends of the buckling restrained brace (3) are provided with connecting ends (301); the connecting ends (301) are two ends of the core material or end plates connected to two ends of the buckling restrained brace (3);
the connecting end (301) is connected with the connecting plate (21).
10. The new architecture of a jacket ocean platform seismic structure with buckling restrained braces as claimed in claim 9, wherein:
the connecting plate (21) is connected to the node (12) in a bolt connection mode, a hinge connection mode and a welding connection mode;
the connecting plate (21) is welded on the pipe wall of the horizontal connecting support pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821847518.9U CN210194588U (en) | 2018-11-10 | 2018-11-10 | Novel jacket ocean platform anti-seismic structure system with buckling restrained brace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821847518.9U CN210194588U (en) | 2018-11-10 | 2018-11-10 | Novel jacket ocean platform anti-seismic structure system with buckling restrained brace |
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| CN210194588U true CN210194588U (en) | 2020-03-27 |
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| CN201821847518.9U Expired - Fee Related CN210194588U (en) | 2018-11-10 | 2018-11-10 | Novel jacket ocean platform anti-seismic structure system with buckling restrained brace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281307A (en) * | 2018-11-10 | 2019-01-29 | 重庆大学 | A kind of offshore jacket platforms anti-seismic structure new system containing buckling restrained brace |
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2018
- 2018-11-10 CN CN201821847518.9U patent/CN210194588U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281307A (en) * | 2018-11-10 | 2019-01-29 | 重庆大学 | A kind of offshore jacket platforms anti-seismic structure new system containing buckling restrained brace |
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Granted publication date: 20200327 |