CN217326094U - Trapezoidal corrugated web steel arch - Google Patents
Trapezoidal corrugated web steel arch Download PDFInfo
- Publication number
- CN217326094U CN217326094U CN202220871884.8U CN202220871884U CN217326094U CN 217326094 U CN217326094 U CN 217326094U CN 202220871884 U CN202220871884 U CN 202220871884U CN 217326094 U CN217326094 U CN 217326094U
- Authority
- CN
- China
- Prior art keywords
- trapezoidal corrugated
- steel arch
- plate
- web
- corrugated web
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
The utility model relates to the technical field of structural engineering, in particular to a trapezoidal corrugated web steel arch which is composed of a trapezoidal corrugated web plate with a curved axis and upper and lower flange plates; the trapezoidal corrugated web plate with the axis being a curve is formed by compression molding of a hollow arc-shaped flat steel plate through a molding device; the upper flange plate and the lower flange plate are formed by cold bending equipment; the trapezoidal corrugated web plate is connected with the upper flange plate and the lower flange plate through mechanical automatic welding to obtain trapezoidal corrugated web plate steel arch units, and then the steel arch units are connected through butt welding seams. The utility model has the advantages that: the arched steel structure has the advantages of convenient processing and forming, large height-thickness ratio limit value of the web, good local stability of the web, large out-of-plane rigidity of the steel arch, clear stress division of each plate of the cross section, and reasonable stress, economy and beauty.
Description
Technical Field
The utility model belongs to the technical field of structural engineering technique and specifically relates to a trapezoidal ripple web steel encircles.
Background
The arch-shaped steel structure is mainly stressed by axial force, and has higher structural efficiency so as to be widely applied to a large-span structure. The solid web type steel arch with an I-shaped cross section (the web is a flat plate) is advocated by engineers because of simple processing and convenient installation. Generally, as the span of a structure increases, the height of the section of the steel arch often needs to be increased to meet the load bearing and stiffness requirements of the structure. However, as the height of the steel arch section is increased, in order to ensure the buckling bearing capacity, welding performance and transportation and installation rigidity requirements of the straight web plate, the thickness of the web plate is generally increased or a stiffening plate is added, which greatly reduces the economy of the steel arch.
In order to solve the above problems, the university of qinghua proposed a "wave-shaped web steel arch structure" (patent No. ZL 200910080642.6). The steel arch can well overcome the defects of the flat web steel arch and obviously improve the engineering economic benefit. However, according to the requirements of the patent background technology, the allowable processing thickness range of the corrugated web steel arch web is preferably 2mm-6mm, which restricts the height of the steel arch section, so that the span and the arch shape are limited, and the steel arch web is difficult to be widely popularized in engineering application, and meanwhile, the corrosion resistance of a thin plate is poor, and a corrosion prevention measure with higher implementation cost is required.
Disclosure of Invention
The utility model aims at providing a trapezoidal ripple web steel arch according to above-mentioned prior art is not enough, through setting up trapezoidal ripple web between upper and lower flange plate, its web shear resistance, processing installation performance have all obtained obvious improvement, and is wider at web thickness lectotype, structural span and structure lectotype scope simultaneously, and corrosion resisting property is more excellent.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides a trapezoidal ripple web plate steel arch which characterized in that: the steel arch is composed of a steel arch unit consisting of a plurality of trapezoidal corrugated webs of which the axes are curves, and an upper flange plate and a lower flange plate, wherein the trapezoidal corrugated webs are welded between the upper flange plate and the lower flange plate, and the cross sections of the trapezoidal corrugated webs are in a trapezoidal corrugated shape.
The trapezoidal corrugated web plate of each steel arch unit and the upper and lower flange plates are connected through butt welding seams respectively.
The thickness of the trapezoidal corrugated web is 4-30mm, and the height-thickness ratio of the trapezoidal corrugated web is not more than
Wherein
The yield strength of the steel of the trapezoidal corrugated web.
The axis of the steel arch comprises an arc shape, a catenary shape, a parabola shape, an elliptic line shape and a variable curvature line shape.
The vector-span ratio of the steel arch is 0.1-0.5.
The trapezoidal corrugated web is a web formed by continuously molding a hollow arc-shaped flat steel plate by using molding equipment.
The upper flange plate and the lower flange plate are formed by cold bending.
The utility model has the advantages that:
(1) the steel arch does not need special processing equipment in the process of processing and forming, the existing die pressing equipment of corrugated steel factories can be used for processing, the compression-molded trapezoidal corrugated web is not limited by the thickness of a steel plate, and the thickness range of the web is wide (4-30 mm).
(2) Each plate of the steel arch section is clearly stressed and divided into work, wherein the trapezoidal corrugated web plate bears section shearing force, and the upper flange and the lower flange bear section axial force and section bending moment.
(3) The height-thickness ratio limit of the web plate of the steel arch can be widened, so that the web plate can be made to be high and thin, the problems that the web plate is easy to partially buckle, a stiffening rib needs to be welded when the cross section is high and the like are solved, and the steel consumption of the web plate is saved.
(4) The trapezoidal corrugated web plate of the steel arch greatly improves the out-of-plane rigidity of the steel arch and the stiffness required in the transportation process, thereby being more convenient for transportation and installation.
(5) The steel arch differs from the corrugated web steel arch in building appearance, providing the designer with an alternative architectural appearance style.
(6) Compared with the wave-shaped web plate, the steel arch web plate can adopt simpler anti-corrosion measures and has better anti-corrosion performance.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic structural view of a trapezoidal corrugated web and an arc-shaped upper and lower flange plate of the present invention;
FIG. 3 is a schematic diagram of the unit of the present invention;
fig. 4 is an isometric view of the present invention;
fig. 5 is an elevation view of the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-5, the symbols 1-3 in the figures are respectively expressed as: trapezoidal corrugated web 1, upper flange plate 2, lower flange plate 3.
Example (b): as shown in fig. 1 to 5, the trapezoidal corrugated web steel arch in the present embodiment is formed by butting a plurality of steel arch units, wherein each steel arch unit includes a trapezoidal corrugated web 1 with a curved axis, a cold-formed upper flange plate 2, and a cold-formed lower flange plate 3. The trapezoidal corrugated web plate 1 with the axis being a curve is connected with the upper flange plate 2 and the lower flange plate 3 through mechanical automatic welding. The trapezoidal corrugated web plate 1 is formed by compression molding of a hollow arc-shaped flat steel plate through a die pressing device; the upper flange plate 2 and the lower flange plate 3 are made of hot rolled steel and are formed by cold bending through a cold bending machine.
In the trapezoidal corrugated web steel arch, a trapezoidal corrugated web 1 with a curved axis is formed by cutting a complete rectangular steel plate into a hollow arc-shaped flat steel plate, then continuously mould-pressing trapezoidal corrugations at a set position of the hollow arc-shaped flat steel plate through mould pressing equipment to obtain a section of trapezoidal corrugated web with a curved axis, then welding the trapezoidal corrugated web with an upper flange plate 2 and a lower flange plate 3 which are formed by cold bending to form a section of trapezoidal corrugated web steel arch unit, and finally connecting all the trapezoidal corrugated web steel arch units into the complete trapezoidal corrugated web steel arch through butt welding seams. The thickness of the corrugated web of the trapezoidal corrugated web steel arch is generally 4-30mm, the existing die pressing equipment of corrugated steel factories can be used for processing, the compression-molded trapezoidal corrugated web is not limited by the thickness of a steel plate, and the thickness range of the web is wide.
In the present embodiment, the trapezoidal corrugated web 1 has a height-thickness ratio of not more than
In which
The trapezoidal corrugated web has high steel yield strength, so that the web can be made to be high and thin, the problems that the web is easy to partially buckle, a stiffening rib needs to be welded when the cross section is high and the like are solved, and the steel consumption of the web is saved.
In the embodiment, in specific implementation:
as shown in fig. 1, first, the hot rolled steel sheet is cut according to the calculated blanking size to obtain a hollow arc-shaped flat web, a flat upper flange plate 2, and a flat lower flange plate 3. Then, the dot-dash line position of the flat web is set as a set molding position, and after the flat web is fixed, the flat web is continuously molded for several times, so that the trapezoidal corrugated web 1 with the axis being a curve as shown in fig. 2 can be obtained. In addition, the upper flange plate 2 and the lower flange plate 3 of fig. 1 may be cold-formed into an arc-shaped upper flange plate 2 and an arc-shaped lower flange plate 3 as shown in fig. 2 by a cold-bending apparatus.
As shown in fig. 2, the trapezoidal corrugated web 1 having a curved axis is connected to the upper flange plate 2 and the lower flange plate 3 by automatic mechanical welding, so as to obtain the trapezoidal corrugated web steel arch unit shown in fig. 3. Connecting the processed plurality of trapezoidal corrugated web steel arch units through butt welding to obtain the trapezoidal corrugated web steel arch shown in figures 4-5.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description is not repeated herein.
Claims (7)
1. The utility model provides a trapezoidal ripple web plate steel arch which characterized in that: the steel arch is composed of a steel arch unit consisting of a plurality of trapezoidal corrugated webs of which the axes are curves, and an upper flange plate and a lower flange plate, wherein the trapezoidal corrugated webs are welded between the upper flange plate and the lower flange plate, and the cross sections of the trapezoidal corrugated webs are in a trapezoidal corrugated shape.
2. A trapezoidal corrugated web steel arch as defined in claim 1, wherein: the trapezoidal corrugated web plate of each steel arch unit and the upper and lower flange plates are connected through butt welding seams respectively.
3. A trapezoidal corrugated web steel arch as defined in claim 1, wherein: the thickness of the trapezoidal corrugated web is 4-30mm, and the height-thickness ratio of the trapezoidal corrugated web is not more than
Wherein
The yield strength of the steel of the trapezoidal corrugated web.
4. A trapezoidal corrugated web steel arch as defined in claim 1, wherein: the axis of the steel arch comprises an arc shape, a catenary shape, a parabola shape, an elliptic line shape and a variable curvature line shape.
5. A trapezoidal corrugated web steel arch as defined in claim 1, wherein: the vector-span ratio of the steel arch is 0.1-0.5.
6. A trapezoidal corrugated web steel arch as defined in claim 1, wherein: the trapezoidal corrugated web is a web formed by continuously molding a hollow arc-shaped flat steel plate by using molding equipment.
7. A trapezoidal corrugated web steel arch as defined in claim 1, wherein: the upper flange plate and the lower flange plate are formed by cold bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220871884.8U CN217326094U (en) | 2022-04-15 | 2022-04-15 | Trapezoidal corrugated web steel arch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220871884.8U CN217326094U (en) | 2022-04-15 | 2022-04-15 | Trapezoidal corrugated web steel arch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217326094U true CN217326094U (en) | 2022-08-30 |
Family
ID=82947808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220871884.8U Active CN217326094U (en) | 2022-04-15 | 2022-04-15 | Trapezoidal corrugated web steel arch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217326094U (en) |
-
2022
- 2022-04-15 CN CN202220871884.8U patent/CN217326094U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201474165U (en) | Combined corrugated web girder | |
| CN101954396B (en) | Roll type continuous cold-bending forming fabricating method for U-shaped steel sheet pile | |
| CN101954397B (en) | Manufacture method of Z-shaped steel sheet pile through continuous cold roll forming | |
| CN201040897Y (en) | Special type flexion-resistant web H section steel | |
| CN215054569U (en) | Partially-coated cold-formed thin-wall steel-concrete combined column | |
| CN101954394A (en) | Continuous roll cold bending forming method for stainless steel corrugated plates | |
| CN111335264A (en) | Double-steel-plate rubber concrete protection structure with built-in corrugated steel pipe | |
| CN217326094U (en) | Trapezoidal corrugated web steel arch | |
| CN110016855B (en) | Wave form steel web mounting structure and bridge thereof | |
| CN115217226A (en) | Purline with double-layer flanges and preparation method thereof | |
| CN111101624B (en) | Double-layer steel plate shear wall with symmetrically-arranged corrugated web plates in drawknot mode | |
| CN201460022U (en) | Cold bending thin-wall welded steel truss purline | |
| CN110644346A (en) | Steel pipe-steel plate combined steel web plate | |
| CN201460029U (en) | Waved web plate steel arch | |
| CN210342752U (en) | Solid-web type cold-bending thin-wall steel purline reinforcing structure | |
| CN109386071B (en) | Industrialized steel plate shear wall composed of Z-shaped steel | |
| CN101954395B (en) | Continuous roll type cold-bending forming method for S-shaped corner pile | |
| CN108435906B (en) | The production technology of cold-forming shapes | |
| CN204638937U (en) | Rectangular thin-wall steel pipe ripple forming fixture | |
| CN203669200U (en) | Assembly type cold-bent I-beam | |
| CN112502340A (en) | Floor support plate assembly and construction method thereof | |
| CN219080770U (en) | Multi-purpose metal enclosure system roof board | |
| CN216042162U (en) | Cold-formed thin-wall channel steel corrugated web combined box girder | |
| CN103437273A (en) | Method for machining bottom box used for assembly-type steel box composite beam | |
| CN201202220Y (en) | Light H section steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |