CN113565008A - Splayed special-shaped steel tower segment machining process - Google Patents
Splayed special-shaped steel tower segment machining process Download PDFInfo
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- CN113565008A CN113565008A CN202110961621.6A CN202110961621A CN113565008A CN 113565008 A CN113565008 A CN 113565008A CN 202110961621 A CN202110961621 A CN 202110961621A CN 113565008 A CN113565008 A CN 113565008A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 46
- 239000010959 steel Substances 0.000 title claims abstract description 46
- 238000003754 machining Methods 0.000 title claims description 5
- 238000003466 welding Methods 0.000 claims abstract description 56
- 238000005192 partition Methods 0.000 claims abstract description 48
- 238000005516 engineering process Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000035515 penetration Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a processing technology of a splayed special-shaped steel tower section, wherein the steel tower section is an octagonal section, and the middle of the steel tower section is divided into four box shapes by a middle web and two side webs; node plates and partition plates are arranged in the whole steel tower, and the steel tower is divided into five cavities by the node plates and the partition plates; the method is characterized in that: the specific processing technology is as follows: s1: marking a ground sample line; s2: initially assembling vertically; s3: assembling and welding the rear wall plate; s4: assembling and welding the side web plates; s5: welding the partition plates and the gusset plates on the two sides of the edge web plate; s6: assembling and welding the side wall plates; s7: filling and welding vertically; according to the invention, the steel tower segments are assembled and welded in a vertical splicing mode, the manufactured parts are firstly assembled and welded in a middle web area, then welded in an edge web area, and finally welded in an outer wall plate; the vertical assembly welding improves the welding efficiency, the symmetrical assembly welding can reduce assembly welding errors, reduce redundant steps and save the processing time.
Description
Technical Field
The invention relates to the technical field of steel tower segment processing, in particular to a processing technology of a splayed special-shaped steel tower segment.
Background
The main towers at the middle and the sides of the bridge are both of a steel-concrete combined structure, the tower column is divided into an upper tower column, a middle tower column and a lower tower column, the upper tower column is of a steel structure, and the middle tower column and the lower tower column are of a concrete structure; according to the requirement of hoisting erection capacity, the steel tower column is divided into sections again so as to determine a field hoisting block; in addition, when the weight and the overall dimension of the hoisting block exceed the crane capacity in a workshop, the transportation capacity of a beam transporting flat car and the like, the hoisting block needs to be subdivided. The overall principle is that according to all limiting indexes in the production and erection processes of the steel tower, the block overall dimension is enlarged as much as possible, and the number of blocks is reduced; however, when the general steel tower segment is divided into structures, the welding of the structures is not facilitated, the number of the divided structures is large, the manufacturing is difficult, and the size and the structure of parts are different, so that the machining and manufacturing process are redundant.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a processing technology of a splayed special-shaped steel tower section; the problems of more sections, redundant processing and manufacturing and low production efficiency in the processing and manufacturing of the common steel tower sections can be solved.
In order to solve the technical problems, the technical scheme of the invention is as follows: a splayed special-shaped steel tower section processing technology is characterized in that the steel tower section is an octagonal section, and the middle of the steel tower section is divided into four box shapes by a middle web and two side webs; node plates and partition plates are arranged in the whole steel tower, and the steel tower is divided into five cavities by the node plates and the partition plates; the innovation points are as follows: the specific processing technology is as follows:
s1: marking a ground sample line: marking a positioning datum line on a flat steel plate according to the size provided by a drawing; the upper and lower ports of the outer wall plate mark the inner side edge projection positioning line; a middle web plate, a side web plate and a vertical stiff plate thickness center projection positioning line are drawn;
s2: initial vertical assembly: blanking the middle web plate according to the size, and welding vertical strength on two side surfaces of the middle web plate according to a set position; prefabricating the gusset plates and the partition plates between the side webs and the middle web, and then sequentially assembling a lower gusset plate, two middle partition plates and an upper gusset plate on two sides of the middle web along the extension direction of the middle web to divide the steel tower segment into five chambers; blanking the front wall plate according to the size, and welding a vertical strength connected with the node plate and the partition plate on one side surface of the front wall plate; vertically splicing the front wall plate which is welded on the ground sample line, and welding the middle web plate, the gusset plate and the partition plate which are welded on the front wall plate on the ground sample line;
s3: assembling and welding the rear wall plate: blanking the rear wall plate according to the size, and welding a vertical strength connected with the gusset plate and the partition plate on one side surface of the rear wall plate; welding the rear wall plate which is welded on the ground sample line in a vertical splicing manner on the node plates and the partition plates on two sides of the middle web plate which is welded in the S1;
s4: assembling and welding the side web plates: blanking a pair of edge webs according to the size requirement, and welding vertical forces connected with the partition plates and the gusset plates on two sides of the edge webs along the extending direction of the edge webs; welding a pair of edge webs which are welded on the ground sample line on the partition plates and the gusset plates on the two sides of the middle web in a vertical splicing manner;
s5: and (3) welding the partition plates and the gusset plates on the two sides of the edge web plate: blanking the partition boards and the gusset plates on the two sides of the edge web plate according to set sizes, and then sequentially welding the lower gusset plate, the two middle partition boards and the upper gusset plate on the outer side of the edge web plate along the extension direction of the edge web plate to divide the steel tower segment into five chambers;
s6: assembling and welding the side wall plates: blanking the side wall plates according to a set size, then arranging vertical strength on the inner walls of the side wall plates along the extending direction, wherein the side wall plates are cut into two groups, the side wall plates are connected with a bevel-shaped structure by three side plates in a welding mode, the two groups of assembled and welded side wall plates are welded on a gusset plate and a partition plate on the outer side of a side web plate on a ground sample line, and two side edges of the side wall plates are respectively welded on the side edge of a front wall plate and the side edge of a rear wall plate;
s7: filling and welding vertical force: and the vertical strength is embedded and welded into the clamping grooves which are not provided with the vertical strength and are arranged on the partition boards and the gusset plates from the two ends of the steel tower segment.
Furthermore, fillet welds among the middle web plate, the side web plate and the outer wall plate are full penetration welds, and a groove form adopts a single-side 35-degree groove form with 8mm roots.
Furthermore, the fillet weld between the vertical force and the framework is a local penetration weld, a double-sided 35-degree groove with 12mm roots is adopted, and the size of the weld corner is 8 mm.
The invention has the advantages that:
1) according to the invention, the steel tower segments are assembled and welded in a vertical splicing mode, the manufactured parts are firstly assembled and welded in a middle web area, then welded in an edge web area, and finally welded in an outer wall plate; the vertical assembly welding improves the welding efficiency, the symmetrical assembly welding can reduce assembly welding errors, reduce redundant steps and save the processing time.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a flow chart of a processing technique of a splayed special-shaped steel tower segment.
Fig. 2 to 8 are structural views of a splayed deformed steel tower segment in a processing state according to the present invention.
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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 8, the steel tower segment is octagonal in section, and is divided into four box shapes by a middle web and two side webs; node plates and partition plates are arranged in the whole steel tower, and the steel tower is divided into five cavities by the node plates and the partition plates; the specific processing technology is as follows:
s1: marking a ground sample line: marking a positioning datum line on a flat steel plate according to the size provided by a drawing; the upper and lower ports of the outer wall plate mark the inner side edge projection positioning line; a middle web plate, a side web plate and a vertical stiff plate thickness center projection positioning line are drawn;
s2: initial vertical assembly: blanking the middle web plate according to the size, and welding vertical strength on two side surfaces of the middle web plate according to a set position; prefabricating the gusset plates and the partition plates between the side webs and the middle web, and then sequentially assembling a lower gusset plate, two middle partition plates and an upper gusset plate on two sides of the middle web along the extension direction of the middle web to divide the steel tower segment into five chambers; blanking the front wall plate according to the size, and welding a vertical strength connected with the node plate and the partition plate on one side surface of the front wall plate; vertically splicing the front wall plate which is welded on the ground sample line, and welding the middle web plate, the gusset plate and the partition plate which are welded on the front wall plate on the ground sample line;
s3: assembling and welding the rear wall plate: blanking the rear wall plate according to the size, and welding a vertical strength connected with the gusset plate and the partition plate on one side surface of the rear wall plate; welding the rear wall plate which is welded on the ground sample line in a vertical splicing manner on the node plates and the partition plates on two sides of the middle web plate which is welded in the S1;
s4: assembling and welding the side web plates: blanking a pair of edge webs according to the size requirement, and welding vertical forces connected with the partition plates and the gusset plates on two sides of the edge webs along the extending direction of the edge webs; welding a pair of edge webs which are welded on the ground sample line on the partition plates and the gusset plates on the two sides of the middle web in a vertical splicing manner;
s5: and (3) welding the partition plates and the gusset plates on the two sides of the edge web plate: blanking the partition boards and the gusset plates on the two sides of the edge web plate according to set sizes, and then sequentially welding the lower gusset plate, the two middle partition boards and the upper gusset plate on the outer side of the edge web plate along the extension direction of the edge web plate to divide the steel tower segment into five chambers;
s6: assembling and welding the side wall plates: blanking the side wall plates according to a set size, then arranging vertical strength on the inner walls of the side wall plates along the extending direction, wherein the side wall plates are cut into two groups, the side wall plates are connected with a bevel-shaped structure by three side plates in a welding mode, the two groups of assembled and welded side wall plates are welded on a gusset plate and a partition plate on the outer side of a side web plate on a ground sample line, and two side edges of the side wall plates are respectively welded on the side edge of a front wall plate and the side edge of a rear wall plate;
s7: filling and welding vertical force: and the vertical strength is embedded and welded into the clamping grooves which are not provided with the vertical strength and are arranged on the partition boards and the gusset plates from the two ends of the steel tower segment.
Fillet welds among the middle web plate, the side web plate and the outer wall plate are full penetration welds, and the groove form adopts a single-side 35-degree groove form with 8mm roots.
The fillet weld between the vertical force and the framework is a local penetration weld, a double-sided 35-degree groove with 12mm roots is adopted, and the size of a weld corner is 8 mm.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A splayed special-shaped steel tower section processing technology is characterized in that the steel tower section is an octagonal section, and the middle of the steel tower section is divided into four box shapes by a middle web and two side webs; node plates and partition plates are arranged in the whole steel tower, and the steel tower is divided into five cavities by the node plates and the partition plates; the method is characterized in that: the specific processing technology is as follows:
s1: marking a ground sample line: marking a positioning datum line on a flat steel plate according to the size provided by a drawing; the upper and lower ports of the outer wall plate mark the inner side edge projection positioning line; a middle web plate, a side web plate and a vertical stiff plate thickness center projection positioning line are drawn;
s2: initial vertical assembly: blanking the middle web plate according to the size, and welding vertical strength on two side surfaces of the middle web plate according to a set position; prefabricating the gusset plates and the partition plates between the side webs and the middle web, and then sequentially assembling a lower gusset plate, two middle partition plates and an upper gusset plate on two sides of the middle web along the extension direction of the middle web to divide the steel tower segment into five chambers; blanking the front wall plate according to the size, and welding a vertical strength connected with the node plate and the partition plate on one side surface of the front wall plate; vertically splicing the front wall plate which is welded on the ground sample line, and welding the middle web plate, the gusset plate and the partition plate which are welded on the front wall plate on the ground sample line;
s3: assembling and welding the rear wall plate: blanking the rear wall plate according to the size, and welding a vertical strength connected with the gusset plate and the partition plate on one side surface of the rear wall plate; welding the rear wall plate which is welded on the ground sample line in a vertical splicing manner on the node plates and the partition plates on two sides of the middle web plate which is welded in the S1;
s4: assembling and welding the side web plates: blanking a pair of edge webs according to the size requirement, and welding vertical forces connected with the partition plates and the gusset plates on two sides of the edge webs along the extending direction of the edge webs; welding a pair of edge webs which are welded on the ground sample line on the partition plates and the gusset plates on the two sides of the middle web in a vertical splicing manner;
s5: and (3) welding the partition plates and the gusset plates on the two sides of the edge web plate: blanking the partition boards and the gusset plates on the two sides of the edge web plate according to set sizes, and then sequentially welding the lower gusset plate, the two middle partition boards and the upper gusset plate on the outer side of the edge web plate along the extension direction of the edge web plate to divide the steel tower segment into five chambers;
s6: assembling and welding the side wall plates: blanking the side wall plates according to a set size, then arranging vertical strength on the inner walls of the side wall plates along the extending direction, wherein the side wall plates are cut into two groups, the side wall plates are connected with a bevel-shaped structure by three side plates in a welding mode, the two groups of assembled and welded side wall plates are welded on a gusset plate and a partition plate on the outer side of a side web plate on a ground sample line, and two side edges of the side wall plates are respectively welded on the side edge of a front wall plate and the side edge of a rear wall plate;
s7: filling and welding vertical force: and the vertical strength is embedded and welded into the clamping grooves which are not provided with the vertical strength and are arranged on the partition boards and the gusset plates from the two ends of the steel tower segment.
2. The machining process of the splayed profiled steel tower section according to claim 1, characterized in that: fillet welds among the middle web plate, the side web plate and the outer wall plate are full penetration welds, and the groove form adopts a single-side 35-degree groove form with 8mm roots.
3. The machining process of the splayed profiled steel tower section according to claim 1, characterized in that: the fillet weld between the vertical force and the framework is a local penetration weld, a double-sided 35-degree groove with 12mm roots is adopted, and the size of a weld corner is 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110961621.6A CN113565008A (en) | 2021-08-20 | 2021-08-20 | Splayed special-shaped steel tower segment machining process |
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| CN202110961621.6A CN113565008A (en) | 2021-08-20 | 2021-08-20 | Splayed special-shaped steel tower segment machining process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197308A (en) * | 2021-12-13 | 2022-03-18 | 江苏沪宁钢机股份有限公司 | Complex octagonal anchor box bridge tower and manufacturing process thereof |
| CN114226886A (en) * | 2021-12-15 | 2022-03-25 | 上海第一机床厂有限公司 | Land processing method |
| CN114319104A (en) * | 2021-12-13 | 2022-04-12 | 江苏沪宁钢机股份有限公司 | Irregular box-shaped bridge tower node and manufacturing method thereof |
| CN116571842A (en) * | 2023-05-15 | 2023-08-11 | 中铁宝桥（扬州）有限公司 | Automatic welding method for construction site of bridge tower with oversized-section steel structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197308A (en) * | 2021-12-13 | 2022-03-18 | 江苏沪宁钢机股份有限公司 | Complex octagonal anchor box bridge tower and manufacturing process thereof |
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| CN116571842A (en) * | 2023-05-15 | 2023-08-11 | 中铁宝桥（扬州）有限公司 | Automatic welding method for construction site of bridge tower with oversized-section steel structure |
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Application publication date: 20211029 |