CN115070354A - Manufacturing method of main longitudinal beam with quadrilateral fold lines - Google Patents
Manufacturing method of main longitudinal beam with quadrilateral fold lines Download PDFInfo
- Publication number
- CN115070354A CN115070354A CN202210719959.5A CN202210719959A CN115070354A CN 115070354 A CN115070354 A CN 115070354A CN 202210719959 A CN202210719959 A CN 202210719959A CN 115070354 A CN115070354 A CN 115070354A
- Authority
- CN
- China
- Prior art keywords
- welding
- plate
- assembling
- web
- anchor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0461—Welding tables
Abstract
The invention discloses a manufacturing method of a main longitudinal beam with a quadrilateral broken line, which is carried out according to the assembly sequence of plate unit manufacturing, box body assembly welding, assembly welding of an anchor box and assembly welding of a cross beam joint plate, wherein the main beam is of a quadrilateral section, the anchor box of the main beam is provided with a bidirectional space angle and is connected with an arch rib by a lifting rod, the main beam adopts a broken line beam section, in order to meet the requirement of pre-camber, most of the rod pieces which adopt a bolt welding structure are arched at a splicing opening, most of the camber in the beam adopts quadratic parabola-shaped presetting, the manufacturing difficulty of camber in the zigzag shape in the beam is higher, and the precision is difficult to control. The manufacturing method of the quadrilateral broken line main longitudinal beam is beneficial to improving the structural line shape, the section size and the manufacturing precision of the anchor box area, ensures the broken line shape and the angle control of the anchor box, and improves the overall quality of the main beam.
Description
Technical Field
The invention relates to the technical field of steel beam manufacturing, in particular to a method for manufacturing a main longitudinal beam with a quadrilateral fold line.
Background
The manufacturing technology of box girder is an important technology in bridge structure industry. The main longitudinal beam adopts a fully welded box-shaped section, the standard section is 3.078m high and 3.2m wide (vertical distance between webs), the total width is 5.133m, the length is 14m, the section weight reaches about 90t, the main longitudinal beam belongs to an ultra-large rod piece of a bridge, a suspender tensioning end is arranged in the box beam of the main longitudinal beam, and the main longitudinal beam is anchored in a steel anchor box form. The method has the advantages that higher requirements are provided for the manufacturing precision of the structure, namely the manufacturing precision of the line shape and the section size of the structural broken line, and if the manufacturing precision is not controlled in advance, the main longitudinal beam cannot be accurately positioned and assembled.
In the prior art, the linear shape of a control beam section is generally a quadratic parabola shape, and the elevation at a break point position cannot be accurately controlled; the prior art controls the size precision of the section of the quadrangular beam section to be positioned only by the geometric dimension of the appearance of the partition plate, and the quadrangular section at the joint of the beam end cannot be accurately ensured.
Disclosure of Invention
Aiming at the main longitudinal beam with the line-shaped broken line, an assembling device is developed, which comprises a 'broken line-shaped jig frame' and a 'web plate assembling limiting device', and the assembling device needs to be used in a split and matched mode.
The technical scheme of the invention is as follows:
a manufacturing method of a quadrilateral main longitudinal beam with fold lines is disclosed, wherein the main longitudinal beam is in a quadrilateral section, a suspender tensioning end is arranged in a box girder of the main longitudinal beam and is anchored by adopting a steel anchor box form, and the main longitudinal beam adopts a fold line girder section, and comprises the following steps:
s1: assembling the bottom plate blocks: the base plate unit is arranged on a platform in a processing and manufacturing factory, a longitudinal broken line-shaped jig frame is arranged on the platform, a reference head of the base plate unit is accurately aligned with a reference line on the platform and is fixed, and the bottom surface of the base plate unit is attached to the jig frame to ensure that the longitudinal broken line shape is ensured;
s2: assembly welding anchor box unit, assembly welding anchor web unit: welding the bearing plate and the support plate into a Pi shape, and then machining and milling the outer surface and the bore hole of the bearing plate to ensure the flatness of the outer surface and the accuracy of the anchor hole; assembling and welding the anchor box with the anchor web, strictly controlling the verticality of the anchor box and the web, assembling and welding the residual plates of the anchor box, and strictly controlling the angle of the anchor box when assembling and welding the anchor web and the anchor box assembly and welding piece;
s3: assembling and welding anchor webs: accurately scribing and assembling an anchor web plate by taking a base plate datum head as a datum, additionally arranging an assembling and limiting device for assembling and welding and controlling the angle of the web plate, and accurately controlling the spatial position precision of an anchor point of an anchor box during assembling and positioning;
s4: assembling and welding the partition plate: the base plate datum head is used as a benchmark to accurately scribe and assemble the partition plate, and during assembly and positioning, the position of the transverse partition plate is accurately checked to ensure the verticality of the transverse partition plate.
S5: assembling and welding web plate units: the base plate datum head is used as a reference, accurate scribing and assembly are carried out on the web plate unit, the web plate unit is tightly attached to the diaphragm plate strictly, an assembly limiting device is additionally arranged for assembly welding, and the angle of the web plate is strictly controlled;
s6: assembling and welding a top plate, a cross beam joint plate and an anchor pipe: assembling a top plate, welding a longitudinal butt welding seam, controlling welding deformation, accurately scribing, assembling and welding a cross beam joint plate and an anchor pipe, and finally accurately scribing and cutting one end of a beam section to control the length of the beam section.
In the above technical scheme, the top plate and the bottom plate are provided with two longitudinal stiffening ribs, and the web plate is provided with three longitudinal stiffening ribs.
In the technical scheme, a clapboard is arranged at the position corresponding to the cross beam at the same interval, and the main longitudinal beam and the arch rib are provided with a middle web at the same interval.
In the above technical solution, in step S5, the welding seam between the web and the bottom plate is welded first, and then the welding seam between the web and the bottom plate is welded and the welding seam between the web and the bottom plate and the welding seam between the web and the diaphragm plate are welded, and the simultaneous welding on both sides and the consistent welding direction are strictly controlled to reduce the influence of the welding thermal deformation on the geometric dimension of the beam section.
Compared with the prior art, the invention has the following beneficial effects:
the manufacturing method of the main longitudinal beam with the quadrangular broken line is beneficial to improving the line shape and the section size of the structure and the manufacturing precision of the anchor box area, ensures the welding quality and the angle control of the anchor box, and improves the overall quality of the main beam.
In addition, the fold-line-shaped jig frame can be controlled by replacing the vertical plates according to different elevations of fold line positions, the web plate assembly limiting devices are arranged on two sides of a beam body, the inclination of the limiting plates is the same as that of the web plate of the beam body, a restraining effect is achieved during assembly, the fold-line-shaped jig frame is arranged at a beam end, the size of a quadrilateral section of the beam end can be particularly well controlled, and splicing among beam sections is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic illustration of a primary stringer assembly process according to an embodiment of the present application;
FIG. 2 is a schematic view of a linear assembly of the main stringers according to an embodiment of the present application;
FIG. 3 is a schematic view of a web assembly stop device according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of a dog-leg jig according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1, the present application provides a method for manufacturing a quadrilateral main longitudinal beam with a fold line, wherein the main longitudinal beam is in a quadrilateral section, a boom tensioning end is arranged in a box girder of the main longitudinal beam and is anchored in a steel anchor box form, and the main longitudinal beam adopts a fold line beam section, comprising the following steps:
s1: assembling the bottom plate blocks: the base plate unit is arranged on a platform in a processing and manufacturing factory, a longitudinal broken line-shaped jig frame is arranged on the platform, a reference head of the base plate unit is accurately aligned with a reference line on the platform and is fixed, and the bottom surface of the base plate unit is attached to the jig frame to ensure that the longitudinal broken line shape is ensured;
s2: assembly welding anchor box unit, assembly welding anchor web unit: welding the bearing plate and the support plate into a Pi shape, and then machining and milling the outer surface and the bore hole of the bearing plate to ensure the flatness of the outer surface and the accuracy of the anchor hole; assembling and welding with the anchor web, strictly controlling the verticality between the anchor box and the web, assembling and welding the rest plates of the anchor box, and strictly controlling the angle of the anchor box when assembling and welding the anchor web and the anchor box assembly and welding piece;
s3: assembling and welding anchor webs: accurately scribing and assembling an anchor web plate by taking a base plate datum head as a datum, additionally arranging an assembling and limiting device for assembling and welding and controlling the angle of the web plate, and accurately controlling the spatial position precision of an anchor point of an anchor box during assembling and positioning;
s4: assembling and welding the partition plate: the base plate datum head is used as a benchmark to accurately scribe and assemble the partition plate, and during assembly and positioning, the position of the transverse partition plate is accurately checked to ensure the verticality of the transverse partition plate.
S5: assembling and welding web plate units: the base plate datum head is used as a reference, accurate scribing and assembly are carried out on the web plate unit, the web plate unit is tightly attached to the diaphragm plate strictly, an assembly limiting device is additionally arranged for assembly welding, and the angle of the web plate is strictly controlled;
s6: assembling and welding a top plate, a cross beam joint plate and an anchor pipe: assembling a top plate, welding a longitudinal butt welding seam, controlling welding deformation, accurately scribing, assembling and welding a cross beam joint plate and an anchor pipe, and finally accurately scribing and cutting one end of a beam section to control the length of the beam section.
Wherein step S3 and step S4 are combined in the same process as shown in FIG. 1.
FIG. 2 is a schematic view of a linear assembly of the main stringers according to an embodiment of the present application; as shown in fig. 2, the front view is a vertical view of the main longitudinal beam, the longitudinal direction is in a broken line shape, and the bottom parts are 2mm and 5mm in linear rise; the side view is a main longitudinal beam section view, the bottom of the main longitudinal beam section view is provided with 3 fold line-shaped moulding beds on the platform, web assembling and limiting devices are arranged on two sides of the main longitudinal beam section view, the beam width is 5133mm, the beam height is 3124mm, and the transverse inclination angle of the web is 9 degrees.
FIG. 3 is a schematic view of a web assembly stop device according to an embodiment of the present disclosure; as shown in figure 3, web equipment stop device arranges in main longeron web both sides for the web angle is spacing, can adjust quantity according to beam section length, if 6, 8, sets up with the beam-ends kneck respectively in the centre, sets up and is favorable to controlling quadrangle section size precision at the beam-ends kneck.
Fig. 4 is a schematic view of a broken-line jig according to an embodiment of the present application, wherein the broken-line jig controls the rise of a main longitudinal beam through the height of a vertical plate, and the number of the vertical plates depends on the number of the break points of the main longitudinal beam.
In the specific embodiment of this application, the main longitudinal of this application adopts the all-welded box section, and standard segmental height 3.078m, wide 3.2m (vertical distance between the web), total width 5.133m, length 14m, and segmental weight reaches about 90t, belongs to bridge super large member, and roof, bottom plate and web thickness are 40mm, and two vertical stiffening ribs are all established to roof and bottom plate, three vertical stiffening ribs are established to the web.
In the specific embodiment of the application, a partition board is arranged at the position of the corresponding cross beam at the same interval, and a middle web is arranged at the position of the main longitudinal beam and the arch rib at the same interval. Among them, the preferred distance in this application is 3.5 m.
In the embodiment of the present application, in step S5, the welding seam between the web and the bottom plate is welded first, and then the welding seam between the web and the bottom plate is welded and the welding seam between the web and the bottom plate are welded, and the simultaneous welding of the two sides and the consistent welding direction are strictly controlled to reduce the influence of the welding thermal deformation on the geometric dimension of the beam section.
The manufacturing method of the main longitudinal beam with the quadrangular broken line is beneficial to improving the line shape and the section size of the structure and the manufacturing precision of the anchor box area, ensures the welding quality and the angle control of the anchor box, and improves the overall quality of the main beam.
The zigzag-shaped jig frame can be controlled by replacing the vertical plates according to the difference of the heights of the positions of the broken lines, the web plate assembly limiting devices are arranged on the two sides of a beam body, the inclination of the limiting plates is the same as that of the web plate of the beam body, the limiting plates play a role in restraining during assembly, the zigzag-shaped jig frame is arranged at the beam end, the size of a quadrilateral section of the beam end can be particularly well controlled, and the splicing among beam sections is facilitated.
The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent; the foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (4)
1. A manufacturing method of a quadrilateral main longitudinal beam with a fold line is characterized by comprising the following steps of:
s1: assembling the bottom plate blocks: the base plate unit is arranged on a platform in a processing and manufacturing factory, a longitudinal broken line-shaped jig frame is arranged on the platform, a reference head of the base plate unit is accurately aligned with a reference line on the platform and is fixed, and the bottom surface of the base plate unit is attached to the jig frame to ensure that the longitudinal broken line shape is ensured;
s2: assembly welding anchor box unit, assembly welding anchor web unit: welding the bearing plate and the support plate into a Pi shape, and then machining and milling the outer surface and the bore hole of the bearing plate to ensure the flatness of the outer surface and the accuracy of the anchor hole; assembling and welding the anchor box with the anchor web, strictly controlling the verticality of the anchor box and the web, assembling and welding the residual plates of the anchor box, and strictly controlling the angle of the anchor box when assembling and welding the anchor web and the anchor box assembly and welding piece;
s3: assembling and welding anchor webs: accurately scribing and assembling an anchor web plate by taking a base plate datum head as a datum, additionally arranging an assembling and limiting device for assembling and welding and controlling the angle of the web plate, and accurately controlling the spatial position precision of an anchor point of an anchor box during assembling and positioning;
s4: assembling and welding the partition plate: the base plate datum head is used as a benchmark to accurately scribe and assemble the partition plate, and during assembly and positioning, the position of the transverse partition plate is accurately checked to ensure the verticality of the transverse partition plate.
S5: assembling and welding web plate units: the base plate datum head is used as a reference, accurate scribing and assembly are carried out on the web plate unit, the web plate unit is tightly attached to the diaphragm plate strictly, an assembly limiting device is additionally arranged for assembly welding, and the angle of the web plate is strictly controlled;
s6: assembling and welding a top plate, a cross beam joint plate and an anchor pipe: assembling a top plate, welding a longitudinal butt welding seam, controlling welding deformation, accurately scribing, assembling and welding a cross beam joint plate and an anchor pipe, and finally accurately scribing and cutting one end of a beam section to control the length of the beam section.
2. The method according to claim 1, wherein the top and bottom plates have two longitudinal stiffeners, and the web plate has three longitudinal stiffeners.
3. The method of claim 1, wherein a bulkhead is provided at equal intervals at corresponding beam locations and a center web is provided at equal intervals between the main stringers and the rib.
4. The method of claim 1, wherein in step S5, the welding seam of the web and the base plate is welded first, and then the welding seam of the web and the base plate is welded and the welding seam of the diaphragm plate is welded, and the welding direction is consistent and the welding direction is strictly controlled, so as to reduce the influence of welding thermal deformation on the geometric dimension of the beam section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210719959.5A CN115070354A (en) | 2022-06-23 | 2022-06-23 | Manufacturing method of main longitudinal beam with quadrilateral fold lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210719959.5A CN115070354A (en) | 2022-06-23 | 2022-06-23 | Manufacturing method of main longitudinal beam with quadrilateral fold lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115070354A true CN115070354A (en) | 2022-09-20 |
Family
ID=83254673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210719959.5A Pending CN115070354A (en) | 2022-06-23 | 2022-06-23 | Manufacturing method of main longitudinal beam with quadrilateral fold lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115070354A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101080946B1 (en) * | 2010-11-30 | 2011-11-08 | 추태석 | Longitudinal curvature control apparatus for sheath of bridge support |
| CN105729063A (en) * | 2016-02-26 | 2016-07-06 | 江苏中铁山桥重工有限公司 | Manufacturing method of double-anchor box type external node chord member |
| KR101637249B1 (en) * | 2015-11-13 | 2016-07-07 | 대림산업 주식회사 | Composite Girder with Steel Box Beam and Precast Concrete Slabs, and Constructing Method thereof |
| CN106436549A (en) * | 2016-09-20 | 2017-02-22 | 江苏京沪重工有限公司 | Long-service-life high-strength bridge deck steel box girder and assembling method thereof |
| CN107201718A (en) * | 2016-03-16 | 2017-09-26 | 中铁十五局集团有限公司 | A kind of main longitudinal grider preparation method of steel structure bridge |
| CN111424560A (en) * | 2020-04-29 | 2020-07-17 | 中铁宝桥集团有限公司 | Steel girder assembling jig frame and method for assembling steel girder by using jig frame |
-
2022
- 2022-06-23 CN CN202210719959.5A patent/CN115070354A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101080946B1 (en) * | 2010-11-30 | 2011-11-08 | 추태석 | Longitudinal curvature control apparatus for sheath of bridge support |
| KR101637249B1 (en) * | 2015-11-13 | 2016-07-07 | 대림산업 주식회사 | Composite Girder with Steel Box Beam and Precast Concrete Slabs, and Constructing Method thereof |
| CN105729063A (en) * | 2016-02-26 | 2016-07-06 | 江苏中铁山桥重工有限公司 | Manufacturing method of double-anchor box type external node chord member |
| CN107201718A (en) * | 2016-03-16 | 2017-09-26 | 中铁十五局集团有限公司 | A kind of main longitudinal grider preparation method of steel structure bridge |
| CN106436549A (en) * | 2016-09-20 | 2017-02-22 | 江苏京沪重工有限公司 | Long-service-life high-strength bridge deck steel box girder and assembling method thereof |
| CN111424560A (en) * | 2020-04-29 | 2020-07-17 | 中铁宝桥集团有限公司 | Steel girder assembling jig frame and method for assembling steel girder by using jig frame |
Non-Patent Citations (2)
| Title |
|---|
| 丁铁花;: "中国港珠澳大桥多角度锚箱加工工艺", 工业技术创新, no. 05, pages 976 - 978 * |
| 石立鹏;刘志雄;: "郑北大桥钢锚箱制造工艺及关键控制技术研析", 现代工业经济和信息化, no. 16, pages 128 - 130 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108049302B (en) | A kind of manufacturing method of full welding steel case and full bolt truss combined bridge lower edge steel box-girder | |
| CN108914782A (en) | A kind of large size open web type highway steel box girder stayed-cable bridge manufacturing method | |
| CN104060523A (en) | Ultra-large type bridge box girder component, dedicated jig frame and assembling method thereof | |
| CN109334858B (en) | Method for building superstructure of ship | |
| CN104203796B (en) | There is the hoisting crane of at least one crane beam, particularly crane in bridge type or overhead crane | |
| CN212641167U (en) | Curve steel box bridge through flip-chip preparation | |
| CN204430632U (en) | A kind of welding tooling of station boiler steel structure great plate beam | |
| CN104551508A (en) | Welding fixture and method for steel structure board girder of power station boiler | |
| CN112554072A (en) | Assembling method for steel box girder of self-anchored suspension bridge | |
| CN110576271B (en) | Installation method of sealing slideway bottom plate of sintering machine | |
| CN114178736A (en) | Control method for ultra-wide steel box girder total splicing cross slope | |
| CN215925691U (en) | Bearing support for casting No. 0 block of bridge | |
| JP6283839B2 (en) | Rigid connection method of large beam and small beam | |
| CN115070354A (en) | Manufacturing method of main longitudinal beam with quadrilateral fold lines | |
| KR20030024828A (en) | Method for production of a connector point on a travel way | |
| CN113107101B (en) | Construction method for oblique crossing connection of broken line steel pipe column and arc box girder based on BIM | |
| CN114346596A (en) | Manufacturing method of concave type hyperbolic stereo pipe truss and double-box column | |
| CN220725370U (en) | Steel structure mounting system | |
| CN115928560A (en) | Suspension type track beam cable-stayed landscape steel bridge cable tower and manufacturing method thereof | |
| CN115070242B (en) | Manufacturing method of steel box girder with embedded chord | |
| CN115787469A (en) | Inhaul cable anchoring structure of suspension type rail Liang Xiela landscape steel bridge and manufacturing method thereof | |
| CN115431004B (en) | Welding method for inner flange of large-span U-shaped trestle | |
| CN214882881U (en) | Split bridge deck jig frame device of steel truss suspension bridge | |
| CN216786852U (en) | Tensioning device for tie arch bridge system conversion | |
| CN214882876U (en) | Bolt type steel box girder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |