CN111561127B - Steel box arch segment and assembling method thereof - Google Patents
Steel box arch segment and assembling method thereof Download PDFInfo
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- CN111561127B CN111561127B CN202010575403.4A CN202010575403A CN111561127B CN 111561127 B CN111561127 B CN 111561127B CN 202010575403 A CN202010575403 A CN 202010575403A CN 111561127 B CN111561127 B CN 111561127B
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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
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000035515 penetration Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F19/00—Other details of constructional parts for finishing work on buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
-
- 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)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a steel box arch segment and an assembling method thereof, wherein the steel box arch segment comprises a top plate unit, a bottom plate unit, an inner web plate unit, a lower outer web plate unit, an upper outer web plate unit, a partition plate unit, an anchor plate and a lifting lug plate; the top plate unit, the bottom plate unit, the inner web plate unit, the lower outer web plate unit and the upper outer web plate unit are mutually spliced to form a box-type accommodating space; the baffle plate unit is arranged in the box-type accommodating space; the upper end of the anchor plate penetrates through the bottom plate unit to be fixedly connected with the partition plate unit, the lower end of the anchor plate penetrates out of the outer side of the box-shaped accommodating space, and the protruding end of the anchor plate is provided with a lifting lug plate. The assembling method mainly comprises the steps of assembling and welding a top plate unit, a bottom plate unit, an inner web plate unit, a lower outer web plate unit, an upper outer web plate unit, a partition plate unit, an anchor plate and a lifting lug plate. The invention can effectively solve the problem of large assembly precision deviation of the arch segment lifting point position, can effectively ensure the manufacturing precision, the welding quality and the assembly efficiency, and has strong operability and applicability.
Description
Technical Field
The invention belongs to the field of steel bridge manufacturing, and particularly relates to a steel box arch segment and a splicing method thereof.
Background
The conventional assembly process of the steel box arch is to assemble the partition plate, the anchor pulling plate and the stiffening plate into an integral partition plate unit to participate in the assembly of the box, so that the geometric section size of the box of the arch section is well controlled, and the working efficiency is high; however, due to the accumulation of assembly deviation of plate units, most of welding seams among the lifting point partition plates, the top web plate and the bottom web plate are penetrated, and the influence of factors with large welding deformation causes large deviation of the installation position of the lifting lug plate.
The conventional assembly process of the steel box arch comprises the steps that the partition plate and the lifting lug plate are assembled into an integral partition plate unit to participate in assembly of the box, and the conventional box assembly process is adopted to manufacture the steel box arch section, so that the following defects exist in production and manufacture: ① The requirement on the assembly positioning precision of the lifting lug plates is high, and the assembly deviation accumulation between the top and bottom bellies and between the partition plates and the top, bottom and web plates is difficult to control; ② The penetration weld between the top and bottom webs, the penetration weld between the hanging point baffle plate and the top and bottom webs, and the influence of the assembly gap and welding deformation at each penetration weld on the hanging point position is difficult to control.
In view of the foregoing, there is a need for further improvements in the art.
Disclosure of Invention
Aiming at the problems in the background technology, the invention provides the steel box arch segment and the assembly method thereof, which have simple and reasonable structural design, can effectively solve the problem of large assembly precision deviation, and can also effectively ensure the manufacturing precision, welding quality and assembly efficiency, and have strong operability and applicability.
The technical scheme of the invention is as follows:
The steel box arch section is a steel box arch section with a special-shaped section and comprises a top plate unit, a bottom plate unit, an inner web plate unit, a lower outer web plate unit, an upper outer web plate unit, a partition plate unit, an anchor plate and a lifting lug plate; the top plate unit and the bottom plate unit are oppositely arranged, and the inner web plate unit is fixedly connected to one end of the top plate unit and one end of the bottom plate unit in the same direction in a matching way; the lower outer web plate unit and the upper outer web plate unit are respectively matched and fixedly connected to the other ends of the top plate unit and the bottom plate unit in the same direction; one end of the lower outer web plate unit is fixedly connected with one end of the upper outer web plate unit; the top plate unit, the bottom plate unit, the inner web plate unit, the lower outer web plate unit and the upper outer web plate unit are mutually spliced to form a box-type accommodating space; the partition plate units are fixedly arranged in the box-shaped accommodating space in a matching way, and are combined with the top plate unit, the bottom plate unit, the inner web plate unit, the lower outer web plate unit and the upper outer web plate unit to form a box-shaped whole; the upper end of the anchor pulling plate penetrates through the bottom plate unit and stretches into the box-shaped accommodating space to be fixedly connected with the partition plate unit in a matching mode, and the lower end of the anchor pulling plate penetrates out of the outer side of the box-shaped accommodating space and the stretching end of the anchor pulling plate is provided with the lifting lug plate in a matching mode.
The steel box arch segment, wherein: a stiffening plate is fixedly connected between the upper end of the lifting lug plate and the outer side wall of the bottom plate unit, and a hanging hole is formed in the lower end of the lifting lug plate in a matched mode.
The steel box arch segment, wherein: the partition plate units are formed by panel and lath stiffening; the panel is arranged in the box-type accommodating space, and the peripheral edges of the panel are respectively matched and correspondingly fixedly connected with the inner side surfaces of the top plate unit, the bottom plate unit, the inner web plate unit, the lower outer web plate unit and the upper outer web plate unit; the lower part of the panel is provided with an anchor plate mounting notch, and one side of the lower part is provided with a passing hole; and the opposite side surfaces of the panel are fixedly provided with lath stiffening along the edges.
The steel box arch segment, wherein: the top plate unit consists of a top plate of the box arch section and a stiffening plate of the top plate of the box arch section; the box arch segment top plate is positioned at the top of the steel box arch segment; the box arch section top plate stiffening plates are uniformly distributed on the inner side surface of the box arch section top plate, and each box arch section top plate stiffening plate is vertically and fixedly connected with the inner side surface of the box arch section top plate; the bottom plate unit consists of a box arch section bottom plate and a box arch section bottom plate stiffening plate; the bottom plate of the box arch section and the top plate of the box arch section are arranged oppositely, and a preformed hole for the anchor plate to pass through is formed in the bottom plate of the box arch section; the stiffening plates of the bottom plate of the box arch section are uniformly distributed on the inner side surface of the bottom plate of the box arch section, and each stiffening plate of the bottom plate of the box arch section is vertically and fixedly connected with the inner side surface of the bottom plate of the box arch section; the upper end of the anchor pulling plate is inserted into the anchor pulling plate mounting notch, and the lower end of the anchor pulling plate penetrates through the preformed hole and extends out of the whole outer side of the box type to be connected with the lifting lug plate.
The steel box arch segment, wherein: the inner web plate unit consists of an inner web plate of the box arch section and a stiffening plate of the inner web plate of the box arch section; the top end of the inner web plate of the box arch section is fixedly connected with one end of the top plate of the box arch section, and the bottom end of the inner web plate of the box arch section is fixedly connected with one end of the bottom plate of the box arch section; the stiffening plates of the inner web plate of the box arch segment are uniformly distributed on the inner side surface of the inner web plate of the box arch segment, and each stiffening plate of the inner web plate of the box arch segment is vertically and fixedly connected with the inner side surface of the inner web plate of the box arch segment.
The steel box arch segment, wherein: the lower outer web plate unit is arranged at the other end of the bottom plate of the box arch section in a matching way and consists of a lower outer web plate of the box arch section and a stiffening plate of the lower outer web plate of the box arch section; the lower outer web plate of the box arch section inclines towards the outer side above the other end of the bottom plate of the box arch section, the lower end of the lower outer web plate of the box arch section is fixedly connected with the other end of the bottom plate of the box arch section, and an included angle between the lower outer web plate of the box arch section and the bottom plate of the box arch section is an obtuse angle; the stiffening plates of the outer web plate under the box arch section are uniformly distributed on the inner side surface of the outer web plate under the box arch section, and each stiffening plate of the outer web plate under the box arch section is vertically and fixedly connected with the inner side surface of the outer web plate under the box arch section.
The steel box arch segment, wherein: the upper outer web plate unit is arranged at the other end of the top plate of the box arch section in a matching way and consists of an upper outer web plate of the box arch section and an upper outer web plate stiffening plate of the box arch section; the upper outer web plate of the box arch section is inclined towards the outer side below the other end of the top plate of the box arch section, the upper end of the upper outer web plate of the box arch section is matched with the other end of the top plate of the box arch section and fixedly connected with the upper end of the lower outer web plate of the box arch section, an included angle between the upper outer web plate of the box arch section and the top plate of the box arch section is an obtuse angle, and an included angle between the upper outer web plate of the box arch section and the lower outer web plate of the box arch section is also an obtuse angle; the outer web stiffening plates on the box arch sections are uniformly distributed on the inner side faces of the outer webs on the box arch sections, and each outer web stiffening plate on the box arch sections is vertically and fixedly connected with the inner side faces of the outer webs on the box arch sections.
The assembling method of the steel box arch segment comprises the following specific processes: (1) Firstly, firmly placing an inner web plate unit on a platform, assembling a partition plate unit, and then sequentially assembling a top plate unit, a bottom plate unit and a lower outer web plate unit into a box shape according to the size of an assembling position; then, trimming the welding deformation of the box, after the geometric dimension of the box meets the requirement, welding the welding seams among the inner web plate unit, the top plate unit, the bottom plate unit and the lower outer web plate unit, and welding the welding seams among the baffle plate unit, the inner web plate unit, the top plate unit, the bottom plate unit and the lower outer web plate unit; (2) Sequentially penetrating the anchor pulling plates through the reserved holes on the bottom plate units to be inserted into anchor pulling plate mounting notches of the panels of the partition plate units, after the positions and angles of the anchor pulling plates are adjusted to meet the requirements, completing assembly welding between the anchor pulling plates and the partition plate units and between the anchor pulling plates and the bottom plate units, and after the anchor pulling plates are inspected to be qualified, enabling the upper outer web plate units to participate in assembly welding; (3) And finally, assembling the lifting lug plate at the lower end of the anchor pulling plate according to the size requirement, and then assembling a stiffening plate welded at the joint of the anchor pulling plate and the lifting lug plate outside the box to complete the assembly of the whole steel box arch section.
The beneficial effects are that:
The steel box arch segment and the assembling method thereof have reasonable conception, simple operation, simple and reasonable structural design, can effectively solve the problem of large deviation of the position of the lifting point on the steel box arch, can effectively control the assembling process of the manufacturing precision, quality and efficiency of the steel box arch segment, have strong operability and applicability, and are suitable for popularization and application.
Drawings
FIG. 1 is a front view of a steel box arch segment of the present invention;
FIG. 2 is a schematic view of the steel box arch segment of the present invention in the direction A-A of FIG. 1;
FIG. 3 is a schematic view of the steel box arch segment of the present invention in the B-B direction of FIG. 1;
FIG. 4 is a schematic view of the steel box arch segment of the present invention in the direction C-C of FIG. 1;
FIG. 5 is a schematic view of the steel box arch segment of the present invention in the direction D-D of FIG. 1;
FIG. 6 is a schematic view of the anchor plate of the steel box arch segment of the present invention passing through the bottom plate of the box arch segment;
fig. 7 is a schematic diagram of the assembly flow of the steel box arch segments of the present invention.
Detailed Description
As shown in fig. 1 to 7, the steel box arch segment of the present invention is a special-shaped section steel box arch segment and includes a top plate unit 1, a bottom plate unit 2, an inner web unit 3, a lower outer web unit 4, an upper outer web unit 5, a bulkhead unit 6, an anchor plate 7, and a lug plate 8.
The top plate unit 1 consists of a box arch section top plate 11 and a box arch section top plate stiffening plate 12; wherein the top plate 11 of the box arch section is of a rectangular plate curved surface structure and is positioned at the top of the steel box arch section; the box arch section top plate stiffening plates 12 are provided with a plurality of inner side surfaces which are uniformly distributed on the box arch section top plate 11, and each box arch section top plate stiffening plate 12 is vertically and fixedly connected with the inner side surface of the box arch section top plate 11.
The bottom plate unit 2 is positioned under the top plate unit 1 in a matching way and is arranged opposite to the top plate unit 1, and the bottom plate unit 2 consists of a box arch section bottom plate 21 and a box arch section bottom plate stiffening plate 22; wherein, the bottom plate 21 of the box arch section is of a rectangular plate curved surface structure and is arranged opposite to the top plate 11 of the box arch section of the top plate unit 1, and the bottom plate 21 of the box arch section is provided with a preformed hole 211 for the anchor plate 7 to pass through; the box arch segment bottom plate stiffening plates 22 are provided with a plurality of inner side surfaces which are uniformly distributed on the box arch segment bottom plate 21, and each box arch segment bottom plate stiffening plate 22 is vertically and fixedly connected with the inner side surface of the box arch segment bottom plate 21.
The inner web plate unit 3 is arranged at one end of the top plate unit 1 and the bottom plate unit 2 in the same direction in a matching way, and the inner web plate unit 3 consists of a box arch section inner web plate 31 and a box arch section inner web plate stiffening plate 32; wherein, the inner web plate 31 of the box arch section is in a curve structure, the top end of the inner web plate 31 of the box arch section is welded and fixed with one end of the top plate 11 of the box arch section of the top plate unit 1, and the bottom end of the inner web plate 31 of the box arch section is welded and fixed with one end of the bottom plate 21 of the box arch section of the bottom plate unit 2; the inner web stiffening plate 32 of the box arch segment is provided with a plurality of inner side surfaces which are uniformly distributed on the inner web plate 31 of the box arch segment, and each inner web stiffening plate 32 of the box arch segment is vertically and fixedly connected with the inner side surface of the inner web plate 31 of the box arch segment.
The lower outer web plate unit 4 is arranged at the other end of the bottom plate 21 of the box arch section of the bottom plate unit 2 in a matching way, and consists of a lower outer web plate 41 of the box arch section and a stiffening plate 42 of the lower outer web plate of the box arch section; wherein the lower outer web 41 of the box arch section inclines towards the upper outer side of the other end of the bottom plate 21 of the box arch section, the lower end of the lower outer web 41 of the box arch section is fixedly connected with the other end of the bottom plate 21 of the box arch section, and an included angle between the lower outer web 41 of the box arch section and the bottom plate 21 of the box arch section is an obtuse angle; the lower outer web stiffening plate 42 of the box arch segment has a plurality of inner side surfaces which are uniformly distributed on the lower outer web 41 of the box arch segment, and each lower outer web stiffening plate 42 of the box arch segment is vertically and fixedly connected with the inner side surface of the lower outer web 41 of the box arch segment.
The upper outer web plate unit 5 is matched and installed at the other end of the top plate 11 of the box arch section of the top plate unit 1, and consists of an upper outer web plate 51 of the box arch section and an upper outer web plate stiffening plate 52 of the box arch section; wherein the upper outer web 51 of the box arch section is inclined towards the lower outer side of the other end of the top plate 11 of the box arch section; the upper end of the upper outer web plate 51 of the box arch section is matched and fixed with the other end of the top plate 11 of the box arch section, the lower end of the upper outer web plate 51 of the box arch section is matched and fixed with the upper end of the lower outer web plate 41 of the lower outer web plate unit 4 of the box arch section, the included angle between the upper outer web plate 51 of the box arch section and the top plate 11 of the box arch section is an obtuse angle, and the included angle between the upper outer web plate 51 of the box arch section and the lower outer web plate 41 of the box arch section is also an obtuse angle. The outer web stiffening plate 52 on the box arch segment is provided with a plurality of inner side surfaces which are uniformly distributed on the outer web plate 51 on the box arch segment, and each outer web stiffening plate 52 on the box arch segment is vertically and fixedly connected with the inner side surface of the outer web plate 51 on the box arch segment.
The top plate unit 1, the bottom plate unit 2, the inner web plate unit 3, the lower outer web plate unit 4 and the upper outer web plate unit 5 jointly enclose a box-shaped accommodating space.
The partition plate unit 6 is installed in a box-shaped accommodating space surrounded by the top plate unit 1, the bottom plate unit 2, the inner web plate unit 3, the lower outer web plate unit 4 and the upper outer web plate unit 5 in a matching manner, and the partition plate unit 6 is assembled and welded with the top plate unit 1, the bottom plate unit 2, the inner web plate unit 3, the lower outer web plate unit 4 and the upper outer web plate unit 5 into a box-shaped whole.
Wherein the spacer unit 6 is composed of a panel 61 and a slat stiffener 62. The panel 61 is installed in a box-shaped accommodating space surrounded by the top plate unit 1, the bottom plate unit 2, the inner web plate unit 3, the lower outer web plate unit 4 and the upper outer web plate unit 5; the peripheral edges of the panels 61 are respectively matched and fixedly connected with the inner side surface of the top plate 11 of the box arch section of the top plate unit 1, the inner side surface of the bottom plate 21 of the box arch section of the bottom plate unit 2, the inner side surface of the inner web plate 31 of the box arch section of the inner web plate unit 3, the inner side surface of the lower outer web plate 41 of the box arch section of the lower outer web plate unit 4 and the inner side surface of the upper outer web plate 51 of the box arch section of the upper outer web plate unit 5; the lower portion of the panel 61 is provided with an anchor plate mounting notch 610 at an anchor plate mounting position, and the anchor plate mounting notch 610 has a U-shape.
The upper end of the anchor plate 7 is inserted into the anchor plate mounting notch 610 on the panel 61, and the lower end passes through the preformed hole 211 on the arch section bottom plate 21 of the bottom plate unit 2 and extends out of the box body (i.e., the box-shaped accommodation space surrounded by the top plate unit 1, the bottom plate unit 2, the inner web plate unit 3, the lower outer web plate unit 4 and the upper outer web plate unit 5) to be connected with the lifting lug plate 8.
A stiffening plate 81 is fixedly connected between the upper end of the lifting lug plate 8 and the outer side wall of the box arch section bottom plate 21 of the bottom plate unit 2, and a hanging hole 82 is matched with the lower end of the lifting lug plate 8.
As shown in fig. 5, the assembling method of the steel box arch segment comprises the following specific steps:
(1) Firstly, firmly placing an inner web plate unit 3 on a platform, assembling a partition plate unit 6, and then sequentially assembling a top plate unit 1, a bottom plate unit 2 and a lower outer web plate unit 4 into a box according to the size of an assembling position; then, trimming welding deformation of the box type, so that the geometric size of the box type meets the requirement, welding seams among the inner web plate unit 3, the top plate unit 1, the bottom plate unit 2 and the lower outer web plate unit 4, and welding seams among the baffle plate unit 6, the inner web plate unit 3, the top plate unit 1, the bottom plate unit 2 and the lower outer web plate unit 4;
(2) Sequentially inserting the anchor pull plates 12 into the anchor pull plate mounting notch 610 of the panel 61 of the partition plate unit 6 through the reserved holes 211 on the bottom plate unit 2, completing assembly welding between the anchor pull plates 12 and the partition plate unit 6 and between the anchor pull plates 12 and the bottom plate unit 2 after the positions and angles of the anchor pull plates 12 are adjusted to meet the requirements, and participating in assembly welding of the upper outer web plate unit 5 after the inspection is qualified;
(3) And finally, assembling the lifting lug plate 8 at the lower end of the anchor pull plate 12 according to the size requirement, and then assembling a stiffening plate 81 welded at the joint of the anchor pull plate 7 and the lifting lug plate 8 outside the box to complete the assembly of the whole steel box arch section.
The invention has simple and reasonable structural design, can effectively solve the problem of large assembly precision deviation of the position of the hanging point of the steel box arch section, and can effectively ensure the manufacturing precision, the welding quality and the assembly efficiency.
Claims (5)
1. A steel box arch segment, characterized by: the steel box arch section is a steel box arch section with a special-shaped section and comprises a top plate unit, a bottom plate unit, an inner web plate unit, a lower outer web plate unit, an upper outer web plate unit, a partition plate unit, an anchor plate and a lifting lug plate;
The top plate unit and the bottom plate unit are oppositely arranged, and the inner web plate unit is fixedly connected to one end of the top plate unit and one end of the bottom plate unit in the same direction in a matching way; the lower outer web plate unit and the upper outer web plate unit are respectively matched and fixedly connected to the other ends of the top plate unit and the bottom plate unit in the same direction; one end of the lower outer web plate unit is fixedly connected with one end of the upper outer web plate unit; the top plate unit, the bottom plate unit, the inner web plate unit, the lower outer web plate unit and the upper outer web plate unit are mutually spliced to form a box-type accommodating space; the partition plate units are fixedly arranged in the box-shaped accommodating space in a matching way, and are combined with the top plate unit, the bottom plate unit, the inner web plate unit, the lower outer web plate unit and the upper outer web plate unit to form a box-shaped whole;
The upper end of the anchor pulling plate penetrates through the bottom plate unit and stretches into the box-shaped accommodating space to be fixedly connected with the partition plate unit in a matching way, the lower end of the anchor pulling plate penetrates out of the outer side of the box-shaped accommodating space, and the lifting lug plate is installed at the stretching end in a matching way;
A stiffening plate is fixedly connected between the upper end of the lifting lug plate and the outer side wall of the bottom plate unit, and a hanging hole is formed in the lower end of the lifting lug plate in a matching manner;
The partition plate units are formed by panel and lath stiffening; the panel is arranged in the box-type accommodating space, and the peripheral edges of the panel are respectively matched and correspondingly fixedly connected with the inner side surfaces of the top plate unit, the bottom plate unit, the inner web plate unit, the lower outer web plate unit and the upper outer web plate unit; the lower part of the panel is provided with an anchor plate mounting notch, and one side of the lower part is provided with a passing hole; the edges of the two opposite side surfaces of the panel are fixedly provided with lath stiffening;
the top plate unit consists of a top plate of the box arch section and a stiffening plate of the top plate of the box arch section; the box arch segment top plate is positioned at the top of the steel box arch segment; the box arch section top plate stiffening plates are uniformly distributed on the inner side surface of the box arch section top plate, and each box arch section top plate stiffening plate is vertically and fixedly connected with the inner side surface of the box arch section top plate;
The bottom plate unit consists of a box arch section bottom plate and a box arch section bottom plate stiffening plate; the bottom plate of the box arch section and the top plate of the box arch section are arranged oppositely, and a preformed hole for the anchor plate to pass through is formed in the bottom plate of the box arch section; the stiffening plates of the bottom plate of the box arch section are uniformly distributed on the inner side surface of the bottom plate of the box arch section, and each stiffening plate of the bottom plate of the box arch section is vertically and fixedly connected with the inner side surface of the bottom plate of the box arch section;
The upper end of the anchor pulling plate is inserted into the anchor pulling plate mounting notch, and the lower end of the anchor pulling plate penetrates through the preformed hole and extends out of the integral outer side of the box and is connected with the lifting lug plate;
the inner web plate unit consists of an inner web plate of the box arch section and a stiffening plate of the inner web plate of the box arch section;
The lower outer web plate unit is arranged at the other end of the bottom plate of the box arch section in a matching way and consists of a lower outer web plate of the box arch section and a stiffening plate of the lower outer web plate of the box arch section;
The upper outer web plate unit is arranged at the other end of the top plate of the box arch section in a matching way, and consists of an upper outer web plate of the box arch section and an upper outer web plate stiffening plate of the box arch section.
2. The steel box arch segment of claim 1, wherein: the top end of the inner web plate of the box arch section is fixedly connected with one end of the top plate of the box arch section, and the bottom end of the inner web plate of the box arch section is fixedly connected with one end of the bottom plate of the box arch section; the stiffening plates of the inner web plate of the box arch segment are uniformly distributed on the inner side surface of the inner web plate of the box arch segment, and each stiffening plate of the inner web plate of the box arch segment is vertically and fixedly connected with the inner side surface of the inner web plate of the box arch segment.
3. The steel box arch segment of claim 1, wherein: the lower outer web plate of the box arch section inclines towards the outer side above the other end of the bottom plate of the box arch section, the lower end of the lower outer web plate of the box arch section is fixedly connected with the other end of the bottom plate of the box arch section, and an included angle between the lower outer web plate of the box arch section and the bottom plate of the box arch section is an obtuse angle;
the stiffening plates of the outer web plate under the box arch section are uniformly distributed on the inner side surface of the outer web plate under the box arch section, and each stiffening plate of the outer web plate under the box arch section is vertically and fixedly connected with the inner side surface of the outer web plate under the box arch section.
4. A steel box arch segment according to claim 3, wherein: the upper outer web plate of the box arch section is inclined towards the outer side below the other end of the top plate of the box arch section, the upper end of the upper outer web plate of the box arch section is matched with the other end of the top plate of the box arch section and fixedly connected with the upper end of the lower outer web plate of the box arch section, an included angle between the upper outer web plate of the box arch section and the top plate of the box arch section is an obtuse angle, and an included angle between the upper outer web plate of the box arch section and the lower outer web plate of the box arch section is also an obtuse angle;
the outer web stiffening plates on the box arch sections are uniformly distributed on the inner side faces of the outer webs on the box arch sections, and each outer web stiffening plate on the box arch sections is vertically and fixedly connected with the inner side faces of the outer webs on the box arch sections.
5. A method of assembling steel box arch segments according to any one of claims 1 to 4, wherein the method comprises the following steps:
(1) Firstly, firmly placing an inner web plate unit on a platform, assembling a partition plate unit, and then sequentially assembling a top plate unit, a bottom plate unit and a lower outer web plate unit into a box shape according to the size of an assembling position; then, trimming the welding deformation of the box, after the geometric dimension of the box meets the requirement, welding the welding seams among the inner web plate unit, the top plate unit, the bottom plate unit and the lower outer web plate unit, and welding the welding seams among the baffle plate unit, the inner web plate unit, the top plate unit, the bottom plate unit and the lower outer web plate unit;
(2) Sequentially penetrating the anchor pulling plates through the reserved holes on the bottom plate units to be inserted into anchor pulling plate mounting notches of the panels of the partition plate units, after the positions and angles of the anchor pulling plates are adjusted to meet the requirements, completing assembly welding between the anchor pulling plates and the partition plate units and between the anchor pulling plates and the bottom plate units, and after the anchor pulling plates are inspected to be qualified, enabling the upper outer web plate units to participate in assembly welding;
(3) And finally, assembling the lifting lug plate at the lower end of the anchor pulling plate according to the size requirement, and then assembling a stiffening plate welded at the joint of the anchor pulling plate and the lifting lug plate outside the box to complete the assembly of the whole steel box arch section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010575403.4A CN111561127B (en) | 2020-06-22 | 2020-06-22 | Steel box arch segment and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010575403.4A CN111561127B (en) | 2020-06-22 | 2020-06-22 | Steel box arch segment and assembling method thereof |
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| CN111561127A CN111561127A (en) | 2020-08-21 |
| CN111561127B true CN111561127B (en) | 2024-07-23 |
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