阅读说明：本技术 一种用于海洋平台的型钢组对节点及其施工方法 (Section steel assembly joint for ocean platform and construction method thereof ) 是由 岑标 王正强 刘鹏 于津伟 杨安海 甘露 沈鹏 姜军 于 2021-10-11 设计创作，主要内容包括：一种用于海洋平台的型钢组对节点,型钢组对节点包括主梁和与主梁配合的次梁、锁定筋板,次梁的底部设有次梁锁定槽,次梁的腹部设有与锁定筋板配合的次梁锁定孔,主梁的顶部设有与次梁锁定槽配合主梁锁定槽,锁定筋板竖边设有与次梁锁定孔配合的凸边,次梁的底部插入主梁的顶部,锁定筋板的凸边插入次梁锁定孔,形成锁定结构；主、次梁分别由上翼板、腹板和下翼板连接而成。使用时,次梁底部的次梁锁定槽从上往下插入主梁顶部的主梁锁定槽,使得次梁的腹板与主梁的腹板之间形成互相锁定的结构,同时次梁的上翼板交错并嵌入主梁的上翼板,使得主、次梁的顶部保持持平,锁定筋板的凸边插入次梁锁定孔,使得主梁、次梁形成竖向锁定,不能上下分离。(A section steel assembly node for an ocean platform comprises a main beam, a secondary beam matched with the main beam and a locking rib plate, wherein a secondary beam locking groove is formed in the bottom of the secondary beam; the main beam and the secondary beam are respectively formed by connecting an upper wing plate, a web plate and a lower wing plate. During the use, the secondary beam locking groove of secondary beam bottom down inserts the girder locking groove at girder top from last for form the structure of locking each other between the web of secondary beam and the web of girder, the last aerofoil of secondary beam is crisscross and imbeds the last aerofoil of girder simultaneously, makes the top of main, secondary beam keep keeping flat, and the chimb of locking gusset inserts secondary beam locking hole, makes girder, secondary beam form vertical locking, can not separate from top to bottom.)

1. The utility model provides a shaped steel group is to node for platform which characterized in that: the section steel assembly node comprises a main beam, a secondary beam matched with the main beam and a locking rib plate, wherein a secondary beam locking groove is formed in the bottom of the secondary beam, a secondary beam locking hole matched with the locking rib plate is formed in the belly of the secondary beam, a main beam locking groove matched with the secondary beam locking groove is formed in the top of the main beam, a convex edge matched with the secondary beam locking hole is formed in the vertical edge of the locking rib plate, the bottom of the secondary beam is inserted into the top of the main beam, and the convex edge of the locking rib plate is inserted into the secondary beam locking hole to form a locking structure; the main beam and the secondary beam are respectively formed by connecting an upper wing plate, a web plate and a lower wing plate.

2. The section steel paired node for the ocean platform according to claim 1, wherein: the lower wing plate of the secondary beam is provided with a first part of a secondary beam locking groove, the web plate of the secondary beam is provided with a second part of the secondary beam locking groove, and the first part and the second part of the secondary beam locking groove are communicated to form the secondary beam locking groove with a T-shaped structure; the upper wing plate of girder is equipped with girder locking groove first part, and the web of girder is equipped with girder locking groove second part, forms the girder locking groove of T type structure behind the first, the second part intercommunication of girder locking groove.

3. The section steel paired node for the ocean platform according to claim 2, wherein: the first part of the secondary beam locking groove is a transverse groove, the second part of the secondary beam locking groove is a longitudinal groove, the first part and the second part of the secondary beam locking groove are mutually perpendicular, and the width of the groove body of the second part of the secondary beam locking groove is larger than or equal to the thickness of the web plate of the main beam; the first part of the main beam locking groove is a transverse groove, the second part of the main beam locking groove is a longitudinal groove, the first part and the second part of the main beam locking groove are perpendicular to each other, and the width of the groove body of the second part of the main beam locking groove is larger than or equal to the thickness of the web plate of the secondary beam.

4. A section steel paired node for an offshore platform according to claim 3, characterized in that: the horizontal groove width of girder locking groove first part cooperatees with the width of pterygoid lamina on the secondary beam, and the side is the spacing side of main horizontal groove about the horizontal groove of girder locking groove first part, and the side cooperatees about the spacing side of main horizontal groove and the secondary beam constant head tank first part.

5. The section steel paired node for the ocean platform according to claim 2, wherein: the depth of the second part of the secondary beam locking groove is smaller than the height of the secondary beam web; the depth of the second part of the girder locking groove is less than the height of the girder web plate.

6. The section steel paired node for the ocean platform according to claim 1, wherein: the locking rib plate is provided with a locking rib plate vertical edge matched with the secondary beam, the locking rib plate vertical edge is provided with a locking rib plate convex edge protruding outwards, the web upper portion of the secondary beam is provided with a secondary beam locking hole matched with the locking rib plate convex edge, and the secondary beam locking hole and the secondary locking groove second portion are arranged in a staggered mode along the vertical direction.

7. The construction method of the section steel assembly joint for the ocean platform according to claim 1, wherein the construction method comprises the following steps: the construction method comprises the following steps: a. selecting the positions of section steel assembly nodes of the main beam and the secondary beam, and performing slotting processing on an upper wing plate, a web plate and a lower wing plate on the main beam and the secondary beam in the sequence of firstly processing the wing plate and then processing the web plate; b. surveying position lines of main components and assembly nodes in a deck body construction site, and laying deck body supporting cushion piers; c. hoisting the main beam of the deck plate body in place according to the distribution of the position lines; d. sequentially hoisting the secondary beam profile steel components, aligning the assembly node positions, inserting the primary beam into the main beam from top to bottom, and installing the locking rib plates, wherein the hoisting sequence is firstly large and then small; e. welding the main beam and the secondary beam at the node by the profile steel group to form a novel profile steel group to the node, wherein the welding sequence of the profile steel group to the node of the deck sheet body is from the middle to the periphery.

8. The construction method of the section steel assembly joint for the ocean platform according to claim 6, wherein the construction method comprises the following steps: in the step a, a secondary beam locking groove is formed in the bottom of the secondary beam, a primary beam locking groove matched with the secondary beam locking groove is formed in the top of the primary beam, a first part of the secondary beam locking groove is formed in a lower wing plate of the secondary beam, a second part of the secondary beam locking groove is formed in a web plate of the secondary beam, and the first part and the second part of the secondary beam locking groove are communicated to form a secondary beam locking groove with a T-shaped structure; the upper wing plate of girder is equipped with girder locking groove first part, and the web of girder is equipped with girder locking groove second part, forms the girder locking groove of T type structure behind the first, the second part intercommunication of girder locking groove.

9. The construction method of the section steel assembly joint for the ocean platform according to claim 7, wherein the construction method comprises the following steps: in the step a, a first part of a secondary beam locking groove is a transverse groove, a second part of the secondary beam locking groove is a longitudinal groove, the first part and the second part of the secondary beam locking groove are mutually vertical, and the width of a groove body of the second part of the secondary beam locking groove is larger than or equal to the thickness of a web plate of the main beam; the first part of the main beam locking groove is a transverse groove, the second part of the main beam locking groove is a longitudinal groove, the first part and the second part of the main beam locking groove are perpendicular to each other, and the width of the groove body of the second part of the main beam locking groove is larger than or equal to the thickness of the web plate of the secondary beam.

10. The construction method of the section steel assembly joint for the ocean platform according to claim 7, wherein the construction method comprises the following steps: the welding process in step e is as follows: e1, welding an angle joint welding seam between the primary beam web plate and the secondary beam web plate, wherein the welding direction is from bottom to top; e2, welding a fillet weld between the lower end of the web plate of the secondary beam and the upper surface of the lower wing plate of the main beam; e3, welding a fillet weld between the upper end of the web plate of the main beam and the lower surface of the upper wing plate of the secondary beam; e4, welding butt-joint welding seams at two sides of the transverse groove of the lower wing plate of the main beam and the lower wing plate of the secondary beam; e5, welding butt-joint welding seams of the transverse groove of the upper wing plate of the main beam and two side edges of the upper wing plate of the secondary beam, and simultaneously welding 2 welding seams along the same direction; e6, welding the connecting welding seams of the locking rib plates and the main beam and the secondary beam, e7, repeating e1-e6 after welding the single section steel assembly nodes, and sequentially welding other section steel assembly nodes of the deck body from the middle to the periphery of the deck body.

Technical Field

The invention relates to the technical field of section steel assembly nodes, in particular to a section steel assembly node for an ocean platform and a construction method thereof.

Background

The section steel is the most common component in the ocean platform structure and occupies more than 75 percent of the weight of the ocean platform main structure. The section steel of the horizontal longitudinal and transverse directions of the ocean platform forms a grid structure through pairing, a deck plate is laid on the upper surface of the grid structure to form a prefabricated horizontal deck plate body, a plurality of prefabricated horizontal deck plate bodies form a single-layer deck platform, and finally, the multi-layer deck platform is combined to form a complete ocean platform structure. The cross-shaped section steel assembly joint is the most common structural node form in the ocean platform, and the assembly efficiency of the section steel is an important factor influencing the construction period of the ocean platform.

In the prior art, at a section steel beam pairing node of an ocean platform, unidirectional disconnection is adopted for pairing, namely, main beam section steel keeps integral integrity in the length direction of the main beam section steel, secondary beam section steel is disconnected at the pairing node to form a plurality of transverse section steel members, the end parts of the secondary beam section steel members are processed into a form complementary to the cross section shape of the main beam section steel, and the end parts of the secondary beam section steel members are aligned to the transverse position of the main beam section steel pairing node during pairing. By adopting the method, the section steel in a certain direction can form a plurality of members due to the disconnection, so that the hoisting times of the members when the assembly nodes are installed are increased. In addition, need install location frock or sign indicating number board in advance to the group node position for the temporary fixation of shaped steel, and demolish after the node welding is accomplished, the process is more loaded down with trivial details, and is inefficient.

Disclosure of Invention

The invention aims to provide an improved section steel assembly node for an ocean platform and a construction method thereof.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a shaped steel group is to node for platform which characterized in that: the section steel assembly node comprises a main beam, a secondary beam matched with the main beam and a locking rib plate, wherein a secondary beam locking groove is formed in the bottom of the secondary beam, a secondary beam locking hole matched with the locking rib plate is formed in the belly of the secondary beam, a main beam locking groove matched with the secondary beam locking groove is formed in the top of the main beam, a convex edge matched with the secondary beam locking hole is formed in the vertical edge of the locking rib plate, the bottom of the secondary beam is inserted into the top of the main beam, and the convex edge of the locking rib plate is inserted into the secondary beam locking hole to form a locking structure; the main beam and the secondary beam are respectively formed by connecting an upper wing plate, a web plate and a lower wing plate.

Preferably, the lower wing plate of the secondary beam is provided with a first part of a secondary beam locking groove, the web plate of the secondary beam is provided with a second part of the secondary beam locking groove, and the first part and the second part of the secondary beam locking groove are communicated to form a secondary beam locking groove with a T-shaped structure; the upper wing plate of girder is equipped with girder locking groove first part, and the web of girder is equipped with girder locking groove second part, forms the girder locking groove of T type structure behind the first, the second part intercommunication of girder locking groove.

Furthermore, the first part of the secondary beam locking groove is a transverse groove, the second part of the secondary beam locking groove is a longitudinal groove, the first part and the second part of the secondary beam locking groove are mutually vertical, and the width of the groove body of the second part of the secondary beam locking groove is more than or equal to the thickness of the web plate of the main beam; the first part of the main beam locking groove is a transverse groove, the second part of the main beam locking groove is a longitudinal groove, the first part and the second part of the main beam locking groove are perpendicular to each other, and the width of the groove body of the second part of the main beam locking groove is larger than or equal to the thickness of the web plate of the secondary beam.

Furthermore, the width of the transverse groove of the first part of the main beam locking groove is matched with the width of the wing plate on the secondary beam, the left side and the right side of the transverse groove of the first part of the main beam locking groove are main transverse groove limiting sides, and the main transverse groove limiting sides are matched with the left side and the right side of the first part of the secondary beam positioning groove.

And a web plate of the secondary beam is provided with a secondary beam locking hole, and the width of the secondary beam locking hole is larger than or equal to the plate thickness of the locking rib plate.

Locking gusset erects the limit and is equipped with the chimb with secondary beam locking hole complex, the length less than or equal to secondary beam locking hole's of chimb length, and locking gusset erects the limit and is connected with secondary beam's web, and the last horizontal limb of locking gusset is connected with the lower surface of the last pterygoid lamina of main girder, secondary beam, and the length of the last horizontal limb of locking gusset is greater than the horizontal groove width of secondary beam locking groove, after installation locking gusset on secondary beam, restriction secondary beam rebound.

A construction method for a section steel assembly node of an ocean platform is characterized by comprising the following steps: the construction method comprises the following steps: a. selecting the positions of section steel assembly nodes of the main beam and the secondary beam, and performing slotting processing on an upper wing plate, a web plate and a lower wing plate on the main beam and the secondary beam in the sequence of firstly processing the wing plate and then processing the web plate; b. surveying position lines of main components and assembly nodes in a deck body construction site, and laying deck body supporting cushion piers; c. hoisting the main beam of the deck plate body in place according to the distribution of the position lines; d. sequentially hoisting the secondary beam profile steel components, aligning the assembly node positions, inserting the primary beam into the main beam from top to bottom, and installing the locking rib plates, wherein the hoisting sequence is firstly large and then small; e. welding the main beam and the secondary beam at the node by the profile steel group to form a novel profile steel group to the node, wherein the welding sequence of the profile steel group to the node of the deck sheet body is from the middle to the periphery.

Compared with the prior art, the technical scheme of the invention comprises the improvement of a plurality of details besides the improvement of the whole technical scheme, and particularly has the following beneficial effects:

1. according to the improved scheme, the section steel assembly node comprises a main beam and a secondary beam matched with the main beam, a secondary beam locking groove is formed in the bottom of the secondary beam, a main beam locking groove matched with the secondary beam locking groove is formed in the top of the main beam, and the bottom of the secondary beam is inserted into the top of the main beam to form a locking structure;

2. according to the technical scheme, the secondary beam is provided with the secondary beam locking groove with the T-shaped structure, the primary beam is provided with the primary beam locking groove corresponding to the secondary beam locking groove, the primary beam locking groove and the secondary beam locking groove can be formed on site according to requirements, the method is efficient and convenient, the use amount of auxiliary tools for installation is effectively reduced, and the construction period of the ocean platform is shortened;

3. the invention has simple structure and convenient construction, can save cost, improve working efficiency and is convenient for popularization and utilization.

Drawings

Fig. 1 is a schematic view of a dispersion structure according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the main beam of the present invention.

Fig. 3 is a schematic view of a dispersed structure of the secondary beam and the locking rib plate of the present invention.

FIG. 4 is a schematic diagram of an interlocking structure of the primary and secondary beams according to an embodiment of the present invention.

Fig. 5 is a schematic structural view illustrating the primary and secondary beams locked to each other according to another embodiment of the present invention.

FIG. 6 is a schematic view showing the operation of setting position lines and supporting piers in the construction method of the present invention.

FIG. 7 is a schematic view of the construction method of the present invention with a main beam installed.

Fig. 8 is a schematic view of the operation of arranging the secondary beam matched with the main beam in the construction method of the present invention.

FIG. 9 is a schematic view showing the operation of locking the primary and secondary beams to each other in the construction method of the present invention.

FIG. 10 is a schematic view of the operation of laying deck boards in the construction method of the present invention.

Reference numerals:

the structure comprises a main beam 1, a deck plate 2, a position line 3, a support cushion pier 4 and a secondary beam 5;

10 main beam upper wing plates, 20 main beam web plates and 30 main beam lower wing plates;

11, a first part of a main locking groove and 12 limit side edges of a main transverse groove;

21, a second part of a main locking groove, 22 main longitudinal groove limiting side edges and 23 upper ends of main girder web plates;

the beam comprises 50 secondary beam upper wing plates, 60 secondary beam web plates and 70 secondary beam lower wing plates;

the second part of the locking groove of the second time 61, the limiting side edge of the longitudinal groove of the second time 62, the lower end of the web plate of the second time 63 and the locking hole of the second time 64;

the connecting end of the lower wing plate of the secondary beam comprises 70 lower wing plates of the secondary beam, 71 first parts of locking grooves of the secondary beam and 72 connecting ends of the lower wing plates of the secondary beam;

8 locking rib plates, 81 locking rib plate vertical edges, 82 locking rib plate convex edges and 83 locking rib plate upper transverse edges.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a section steel assembly node for an ocean platform, and particularly relates to a section steel assembly node which is shown in a figure 1 and is different from the prior art in that: shaped steel group is to node including girder 1 and with girder complex secondary beam 5, the bottom of secondary beam is equipped with secondary beam locking groove, the top of girder is equipped with and cooperates the girder locking groove with secondary beam locking groove, the top that the bottom of secondary beam inserted the girder forms locking structure, the insertion mode is to insert completely here, if the height of secondary beam and girder is the same, the top of secondary beam is kept level with the top of girder promptly, the bottom of secondary beam is kept level with the bottom of girder, if the height of secondary beam is less than the girder, then the top of secondary beam is kept level with the girder, the middle part position at the girder is established to the bottom card of secondary beam. Specifically, the primary and secondary beams may be in the form of i-beams, H-beams or other combined steel beams, and are respectively formed by connecting an upper wing plate, a web plate and a lower wing plate.

During the use, the girder locking groove at girder top is down inserted from last to the secondary roof beam locking groove of secondary roof beam bottom for form the structure of locking mutually between the web of secondary roof beam and the web of girder, the last aerofoil of secondary roof beam is crisscross and imbeds the last aerofoil of girder simultaneously, makes the top of main, secondary roof beam keep keeping flat, this kind of locking structure of mutually is firm, safety, the precision of locking simultaneously is accurate, has avoided main, secondary removal simultaneously, simple structure, the construction of being convenient for.

Example 1

The section steel assembly node comprises a main beam and a secondary beam matched with the main beam, wherein a secondary beam locking groove is formed in the bottom of the secondary beam, a main beam locking groove matched with the secondary beam locking groove is formed in the top of the main beam, a locking structure is formed by inserting the bottom of the secondary beam into the top of the main beam, the locking structure and the main beam form vertical cross locking, and meanwhile, the swinging and the up-and-down movement between the locking structure and the locking structure are limited. Meanwhile, the main beam structure and the secondary beam structure are respectively formed by connecting an upper wing plate, a web plate and a lower wing plate, the upper wing plate and the lower wing plate extend outwards and are protruded compared with the web plate, the upper wing plate and the lower wing plate can have the same width, and different sizes and widths can be set according to specific construction requirements.

Specifically, a lower wing plate of the secondary beam is provided with a first part of a secondary beam locking groove, a web plate of the secondary beam is provided with a second part of the secondary beam locking groove, and the first part and the second part of the secondary beam locking groove are communicated to form the secondary beam locking groove with a T-shaped structure; the upper wing plate of girder is equipped with girder locking groove first part, and the web of girder is equipped with girder locking groove second part, forms the girder locking groove of T type structure behind the first, the second part intercommunication of girder locking groove. The first part of the secondary beam locking groove can be a square groove (the two sides of the groove are mutually parallel) or a trapezoidal groove (the two sides of the groove are symmetrical or asymmetrical inclined edges), the first part structure of the primary beam locking groove and the first part structure of the secondary beam locking groove are correspondingly arranged, namely, the first part of the primary beam locking groove is the same square groove or the corresponding trapezoidal groove as the secondary beam locking groove, the precision requirement of the trapezoidal groove can be higher, but the locking effect is better, and the locking is not easy to loosen.

Preferably, the first part of the secondary beam locking groove is a transverse groove, the second part of the secondary beam locking groove is a longitudinal groove, the first part and the second part of the secondary beam locking groove are arranged vertically, the width of the groove body of the second part of the secondary beam locking groove is larger than or equal to the thickness of the web plate of the main beam, and the transverse groove and the longitudinal groove are arranged vertically; the girder locking groove first part is the horizontal groove, and girder locking groove second part is for indulging the groove, and girder locking groove first, the perpendicular setting of second part mutually, and the cell body width more than or equal to secondary web plate thickness of girder locking groove second part, here horizontal groove and indulge and set up perpendicularly between the groove. The depth of the second part of the secondary beam locking groove is smaller than the height of the secondary beam web; the depth of the second part of the girder locking groove is less than the height of the girder web plate.

Furthermore, the width of the transverse groove of the first part of the main beam locking groove is matched with the width of the wing plate on the secondary beam, the left side and the right side of the transverse groove of the first part of the main beam locking groove are main transverse groove limiting sides, and the main transverse groove limiting sides are matched with the left side and the right side of the first part of the secondary beam positioning groove.

The locking rib plate is provided with a locking rib plate vertical edge matched with the secondary beam, the locking rib plate vertical edge is provided with a locking rib plate convex edge protruding outwards, the web upper part of the secondary beam is provided with a secondary beam locking hole matched with the locking rib plate convex edge, the secondary beam locking hole and the secondary locking groove second part are arranged in a staggered mode along the vertical direction, and the vertical direction is perpendicular to the secondary beam web.

The invention also has the following technical characteristics: 1. the sum of the heights of the main beam locking groove and the secondary beam locking groove is equal to the total height of the cross section of the secondary beam, and the height ratio of the main beam locking groove to the secondary beam locking groove is smaller than or equal to the cross section area ratio of the secondary beam to the main beam, so that the loss of the cross section area of the main beam caused by grooving is reduced, and the strength of the main beam is ensured.

2. Locking gusset upper portion width will be greater than the girder locking groove, and its effect 1) has increased vertical locking on the basis of the original locking structure of primary, secondary beam, can prevent that the secondary beam from upwards extracting, 2) the cross sectional area of increase shaped steel group to the girder orientation of node, can improve shaped steel group to the intensity of node, 3) the locking gusset prevents the bracket board as the secondary beam, can prevent that the secondary beam that the platform structure atress arouses from twisting the slope.

The positive progress effects of the invention are as follows:

the novel section steel assembly node reduces the number of section components participating in the assembly node on the premise of not changing the overall structural form of the ocean platform, thereby reducing the component hoisting times during construction, saving the input resources of hoisting equipment in the ocean platform construction process and reducing the production cost.

The novel section steel assembly node provided by the invention has the advantages that the structural continuity of the section steel members in the longitudinal direction and the transverse direction can be kept on the premise of not changing the overall structural form of the ocean platform, and the stress is more balanced.

The novel section steel assembly node enables section steels to form a locking structure mutually during assembly, does not need to be pre-installed with an additional positioning tool or a stacking plate, and can greatly reduce the workload.

The construction method can simplify the construction steps of assembling the section steels of the horizontal deck plate of the ocean platform, reduce the operation time of each process, obviously improve the production efficiency of the horizontal deck plate and shorten the construction period.

Example 2

A novel ocean platform section steel assembly node comprises a main beam and a secondary beam; the cross section of the main beam and the secondary beam can be H-shaped steel, I-shaped steel or a combined steel beam and consists of an upper wing plate, a web plate and a lower wing plate; the secondary beam is inserted into the main beam from top to bottom to form a locking structure.

At the position of the section steel assembly node, the upper wing plate of the main beam participating in assembly is provided with a first part of a main beam locking groove, and two sides of a transverse groove of the first part respectively form a main transverse groove limiting side edge; the main beam web plate is provided with a second part of a main beam locking groove, the longitudinal groove extends downwards from the upper end of the main beam web plate, the height of the groove does not exceed the height of the main beam web plate, and the two sides of the groove respectively form main longitudinal groove limiting side edges; the lower wing plate of the main beam is kept continuous along the longitudinal direction of the main beam. The main beam is not disconnected at the position of the section steel assembly node, and the structure continuity is kept along the longitudinal direction of the main beam.

At the position of the section steel assembly node, the upper wing plate of the secondary beam participating in assembly keeps continuous along the longitudinal direction of the main beam; the secondary beam web plate is provided with a second part of a secondary beam locking groove, the secondary beam longitudinal beam extends upwards from the lower end of the secondary beam web plate, the slotting height does not exceed the height of the secondary beam web plate, and secondary longitudinal beam limiting side edges are formed on two sides of the secondary beam longitudinal beam; the wing plate sets up secondary beam locking groove first part under the secondary beam, and secondary beam cross slot both sides form the spacing side in secondary cross slot respectively. The secondary beam is not disconnected at the position of the section steel assembly node, and the structure continuity is kept along the longitudinal direction of the secondary beam.

At the group nodal point position of shaped steel, during the girder was down inserted from last to the secondary beam for during the secondary beam web inserted the girder web fluting, the spacing side in the main longitudinal groove of girder web longitudinal groove both sides was connected with secondary beam web side respectively, formed the locking structure, had restricted the horizontal removal of secondary beam and the vertical back-and-forth movement of girder, makeed the group need not to install interim fixed frock in the work progress.

In the section steel group node position, during the secondary beam from last down inserted the girder for the girder web inserts among the secondary beam web fluting, the spacing side in the secondary longitudinal groove of secondary beam web longitudinal groove both sides is connected with girder web side respectively, forms locking structure, has restricted the left and right side direction removal of girder and the longitudinal back-and-forth movement of secondary beam, makes the group need not to install interim fixed frock in the work progress.

At the position of the section steel assembly node, the limiting side edges of the main transverse groove at two sides of the transverse groove of the upper wing plate of the main beam are respectively connected with two sides of the upper wing plate of the secondary beam; the lower surface of pterygoid lamina is connected on girder web upper end and the secondary beam, forms vertical support to the secondary beam, has restricted secondary beam downstream for the secondary beam need not to install the location frock in the group is to the work progress.

At the section steel group to node position, the vertical side of locking gusset is connected with the web of secondary beam, and the last horizontal side of locking gusset is connected with the lower surface of the last pterygoid lamina of girder, secondary beam, has restricted secondary beam rebound, makes main, secondary beam unable upper and lower separation.

The locking rib plate can be triangular, quadrangular and the like, the convex edge can be a square, triangular, semicircular or wedge-shaped convex structure, and the specific number of the convex edge is determined according to the related technical requirements of the engineering, so that the detailed description is omitted.

In an application scene, at the position of the section steel assembly node, the secondary transverse groove limiting side edges on two sides of the transverse groove of the secondary beam lower wing plate are respectively connected with two sides of the main beam lower wing plate; the lower end of the secondary beam web plate is connected with the upper surface of the lower wing plate of the main beam.

In an application scene, at the position of the section steel assembly node, the secondary beam limiting side edges on two sides of the secondary beam lower wing plate transverse groove are respectively connected with two side surfaces of the main beam web plate; the lower end of the web plate of the secondary beam is not connected with the upper surface of the lower wing plate of the main beam.

The main transverse groove limiting side edge can be provided with a welding groove, and the main longitudinal groove limiting side edge and the upper end of the main girder web plate can be provided with a welding groove or an overweld hole; the lower ends of the secondary longitudinal groove limiting side and the secondary beam web plate can be provided with welding grooves or overweld holes, and the secondary transverse groove limiting side can be provided with welding grooves.

It should be noted that the invention does not have excessive description on the welding grooves and the overweld holes, and can be implemented by referring to the relevant construction method of the ocean platform structural engineering in the actual construction process.

The main beam and the secondary beam are provided with a plurality of novel section steel assembly nodes according to the number of the section steel assembly nodes related to the longitudinal direction of the main beam and the secondary beam in different longitudinal positions.

Example 3

A construction method of a section steel assembly node for an ocean platform comprises the following steps: a. selecting the positions of section steel assembly nodes of the main beam and the secondary beam, and performing slotting processing on an upper wing plate, a web plate and a lower wing plate on the main beam and the secondary beam in the sequence of firstly processing the wing plate and then processing the web plate; b. surveying position lines 3 of main components and assembly nodes in a deck body construction site, and laying deck body supporting pad piers 4; c. hoisting the main beam of the deck plate body in place according to the distribution of the position lines; d. sequentially hoisting the secondary beam profile steel components, aligning the assembly node positions, inserting the primary beam into the main beam from top to bottom, and installing the locking rib plates, wherein the hoisting sequence is firstly large and then small; e. welding the main beam and the secondary beam at the node by the profile steel group to form a novel profile steel group to the node, wherein the welding sequence of the profile steel group to the node of the deck sheet body is from the middle to the periphery.

In the step a, a secondary beam locking groove is formed in the bottom of the secondary beam, a primary beam locking groove matched with the secondary beam locking groove is formed in the top of the primary beam, a first part of the secondary beam locking groove is formed in a lower wing plate of the secondary beam, a second part of the secondary beam locking groove is formed in a web plate of the secondary beam, and the first part and the second part of the secondary beam locking groove are communicated to form a secondary beam locking groove with a T-shaped structure; the upper wing plate of girder is equipped with girder locking groove first part, and the web of girder is equipped with girder locking groove second part, forms the girder locking groove of T type structure behind the first, the second part intercommunication of girder locking groove.

In the step a, a first part of a secondary beam locking groove is a transverse groove, a second part of the secondary beam locking groove is a longitudinal groove, the first part and the second part of the secondary beam locking groove are mutually vertical, and the width of a groove body of the second part of the secondary beam locking groove is larger than or equal to the thickness of a web plate of the main beam; the first part of the main beam locking groove is a transverse groove, the second part of the main beam locking groove is a longitudinal groove, the first part and the second part of the main beam locking groove are perpendicular to each other, and the width of the groove body of the second part of the main beam locking groove is larger than or equal to the thickness of the web plate of the secondary beam.

The welding process in step e is as follows: e1, welding an angle joint welding seam between the primary beam web plate and the secondary beam web plate, wherein the welding direction is from bottom to top; e2, welding a fillet weld between the lower end of the web plate of the secondary beam and the upper surface of the lower wing plate of the main beam; e3, welding a fillet weld between the upper end of the web plate of the main beam and the lower surface of the upper wing plate of the secondary beam; e4, welding butt-joint welding seams at two sides of the transverse groove of the lower wing plate of the main beam and the lower wing plate of the secondary beam; e5, welding butt-joint welding seams of the transverse groove of the upper wing plate of the main beam and two side edges of the upper wing plate of the secondary beam, and simultaneously welding 2 welding seams along the same direction; e6, welding the connecting welding seams of the locking rib plates and the main beam and the secondary beam, e7, repeating e1-e6 after welding the single section steel assembly nodes, and sequentially welding other section steel assembly nodes of the deck body from the middle to the periphery of the deck body.

Example 4

Referring to fig. 1 to 5, the novel ocean platform section steel assembly node comprises a main beam 1 and a secondary beam 5; the cross section of the main beam and the secondary beam can be H-shaped steel, I-shaped steel or combined steel beams.

The secondary beam 5 is inserted into the main beam 1 from top to bottom to form a locking structure with each other.

The main beam 1 is composed of a main beam upper wing plate 10, a main beam web plate 20 and a main beam lower wing plate 30.

The main beam upper wing plate 10 is provided with a main locking groove first part 11, and two sides of the main beam upper wing plate respectively form main transverse groove limiting side edges 12; the main beam web plate 20 is provided with a main locking groove second part 21, the main locking groove second part 21 extends downwards from the upper end of the main beam web plate, the height of the main locking groove second part 21 is not more than that of the main beam web plate 20, and main longitudinal groove limiting side edges 22 are respectively formed on two sides of the main locking groove second part; the girder lower wing plate 30 is kept continuous in the girder longitudinal direction. The main beam is not disconnected at the position of the section steel assembly node, and the structure continuity is kept along the longitudinal direction of the main beam.

The secondary beam 5 is composed of a secondary beam upper wing plate 50, a secondary beam web plate 60 and a secondary beam lower wing plate 70.

The secondary beam upper wing plate 50 is kept continuous in the secondary beam longitudinal direction; the secondary beam web 60 is provided with a secondary locking groove second part 61, the secondary locking groove second part 61 extends upwards from the lower end of the secondary beam web, the height of the secondary locking groove second part 61 is not more than that of the secondary beam web, and secondary longitudinal groove limiting side edges 62 are formed on two sides of the secondary locking groove second part 61 respectively; the secondary beam lower wing plate 70 is provided with a secondary beam locking groove first portion 71, both sides of which are formed with secondary transverse groove limiting side edges 72, respectively. The secondary beam 5 is not disconnected at the position of the section steel assembly node, and the structural continuity is maintained along the longitudinal direction of the secondary beam B.

At the position of the section steel assembly node, the secondary beam 5 is inserted into the main beam 1 from top to bottom, so that the secondary beam web 60 is inserted into the main locking groove second part 21, the main longitudinal groove limiting side edges 22 at two sides of the main locking groove second part 21 are respectively connected with the side surfaces of the secondary beam web 60, a locking structure is formed, and the transverse left-right movement of the secondary beam 5 and the longitudinal front-back movement of the main beam 1 are limited.

At the position of the section steel assembly node, the secondary beam 5 is inserted into the main beam 1 from top to bottom, so that the main beam web 20 is inserted into the secondary locking groove second part 61, secondary longitudinal groove limiting side edges 62 on two sides of the secondary locking groove second part 61 are respectively connected with the side surfaces of the main beam web 20 to form a locking structure, and the left and right lateral movement of the main beam 1 and the longitudinal back and forth movement of the secondary beam 5 are limited.

At the position of the section steel assembly node, the main transverse groove limiting side edges 12 at two sides of the first part 11 of the main locking groove are respectively connected with two sides of the secondary beam upper wing plate 60; the upper end of girder web is connected with pterygoid lamina 60's lower surface on the secondary beam, forms vertical support to secondary beam 5, has restricted secondary beam 5 and has moved down for secondary beam 5 need not to install location frock to the work progress in the group.

At the position of the section steel assembly node, the vertical edge 81 of the locking rib plate is connected with the web 60 of the secondary beam, and the upper transverse edge 83 of the locking rib plate is connected with the lower surfaces of the upper wing plate 10 of the main beam and the upper wing plate 50 of the secondary beam, so that the secondary beam 5 is limited from moving upwards, and the main beam 1 and the secondary beam 5 cannot be separated from each other up and down.

Referring to fig. 4, in one embodiment, secondary transverse slot limiting sides 72 on either side of the secondary beam locking slot first portion 71 are connected to either side of the primary beam lower wing plate 30; the lower end 63 of the web of the secondary beam is connected to the upper surface of the lower wing plate 30 of the primary beam.

Referring to fig. 5, in another embodiment, the secondary longitudinal groove limiting side edges 62 on both sides of the secondary locking groove second portion 61 are respectively connected to both sides of the main beam web 20; the lower end 63 of the secondary beam web is not attached to the upper surface of the primary beam lower wing 30.

In the figure: 1 main beam, 10 main beam upper wing plates, a main locking groove first part 11, main transverse groove limiting side edges 12, 20 main beam web plates, a main locking groove second part 21, main longitudinal groove limiting side edges 22 and 30 main beam lower wing plates.

The secondary beam comprises a 5-secondary beam, a 50-secondary beam upper wing plate, a 60-secondary beam web plate, a secondary locking groove second part 61, a secondary longitudinal groove limiting side 62, 63-secondary beam web plate lower ends, 64-secondary beam locking holes, a 70-secondary beam lower wing plate, a 71-secondary beam locking groove first part and a 72-secondary beam lower wing plate connecting end;

8 locking rib plate, 81 locking rib plate vertical edge, 82 locking rib plate convex edge and 83 locking rib plate upper transverse edge

The main transverse groove limiting side edge 12 can be provided with a welding groove, and the main longitudinal groove limiting side edge 22 and the upper end 23 of the main girder web plate can be provided with a welding groove or an overweld hole; the secondary longitudinal groove limiting side 62 and the lower end 63 of the secondary beam web plate can be provided with a welding groove or an overweld hole, and the 73 secondary beam lower wing plate connecting end can be provided with a welding groove.

It should be noted that the invention does not have excessive description on the welding grooves and the overweld holes, and can be implemented by referring to the relevant construction method of the ocean platform structural engineering in the actual construction process.

The main beam 1 and the secondary beam 5 are provided with a plurality of novel section steel pairing nodes according to the number of the section steel pairing nodes related to the longitudinal direction of the main beam and the secondary beam in different longitudinal positions.

Referring to fig. 6 to 10, a construction method of a novel ocean platform steel group pairing node comprises the following steps:

the method comprises the following steps: processing an upper wing plate, a web plate and a lower wing plate on the joint positions of the section steel assembly of the main beam and the secondary beam, wherein the processing sequence is that the wing plate is firstly processed and then the web plate is processed;

step two: surveying and marking out a position line of a main component on the ground of a deck body construction site, and laying deck body supporting cushion piers;

step three: hoisting the main beam of the deck plate body in place according to the distribution of the position lines, and fixedly connecting the main beam with the support pad pier;

step four: hoisting the secondary beam profile steel member, aligning the assembly node position, and inserting the secondary beam profile steel member into the main beam from top to bottom, wherein the hoisting sequence of the secondary beam is firstly big and then small;

step five: welding main beam, secondary beam to the node to shaped steel group, forming novel shaped steel group to the node, by the centre to accomplishing all shaped steel group of deck lamellar body to the welding of node all around in proper order.

Step six: and (4) paving a deck plate on the upper surface of the section steel grid structure to form an ocean platform deck plate body.

The foregoing is a more detailed description of the present invention in connection with specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific details set forth herein. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.