CN112872729A - Manufacturing method and assembling method of straddle type single-rail steel-concrete combined track beam stable surface component - Google Patents
Manufacturing method and assembling method of straddle type single-rail steel-concrete combined track beam stable surface component Download PDFInfo
- Publication number
- CN112872729A CN112872729A CN202110049769.2A CN202110049769A CN112872729A CN 112872729 A CN112872729 A CN 112872729A CN 202110049769 A CN202110049769 A CN 202110049769A CN 112872729 A CN112872729 A CN 112872729A
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- Prior art keywords
- supporting plate
- panel
- transverse supporting
- positioning
- line
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- 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
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/08—Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail
- E01B25/10—Mono-rails; Auxiliary balancing rails; Supports or connections for rails
Abstract
The invention discloses a manufacturing method and an assembling method of a straddle type single-rail steel-concrete combined track beam stable surface component, which relate to the field of bridge engineering and comprise the following steps: carrying out full-bridge integral lofting, and cutting and blanking plates of the stable surface component after segmentation, wherein the plates comprise a panel, a longitudinal supporting plate and a transverse supporting plate; placing the panel on a platform, drawing a central line for the panel, and drawing a longitudinal supporting plate positioning line and a transverse supporting plate positioning line to two sides by taking the central line as a reference; after the borderlines of the longitudinal supporting plate and the transverse supporting plate are respectively aligned with the positioning line of the longitudinal supporting plate and the positioning line of the transverse supporting plate on the panel, the longitudinal supporting plate and the transverse supporting plate are fixed on the panel and then welded, and the contact side borderlines are trimmed. The novel assembling method provided by the invention is beneficial to the wide application of the steel-concrete combined beam and steel beam structure in straddle type monorail traffic.
Description
Technical Field
The invention relates to the field of straddle type monorail transit systems and bridge engineering, in particular to a manufacturing method and an assembling method of a straddle type monorail steel-concrete combined track beam stable surface component.
Background
The straddle type monorail transit simply-supported steel-concrete combined track beam has the advantages of large bearing capacity, relatively light self weight, reasonable material stress and larger spanning capacity, overcomes the defects of heavy structure and complicated construction process of a scheme of supporting a PC track beam on a concrete continuous beam, and simultaneously solves the problems of large steel consumption, large vibration noise and easy slippage between wheels and a beam body of the steel track beam scheme. In recent years, the amount of simple steel-concrete composite track beams used as a beam for crossing a special work point has also increased year by year.
The most remarkable characteristic of straddle type monorail transit is that a vehicle is required to straddle on a monorail track beam to run quickly, the track beam is not only a bearing beam, but also a track for running of a train, and therefore the straddle type monorail track beam has extremely high requirements on manufacturing accuracy and construction quality.
However, at present, the manufacturing, installation and acceptance of the domestic single-rail simple-supported steel-concrete combination beam are all in the starting stage, a set of complete and acknowledged process flows for machining and assembling the steel structure do not exist, and the manufacturing and assembling processes of the steel main beam stable surface component are different from the process methods adopted by manufacturers, so that the technical personnel in the field provide a novel manufacturing method and assembling method for the straddle-type single-rail steel-concrete combination track beam stable surface component to better ensure the machining and manufacturing quality of the stable surface component and improve the machining precision of the stable surface component. The novel assembling method can improve the machining precision of the steel main beam of the track beam and is beneficial to promoting the wide application of the steel-concrete combined beam and steel beam structure in straddle type monorail transit.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a novel method for manufacturing and assembling a straddle-type monorail steel-concrete combined track beam stabilizing surface component. The novel assembling method can improve the machining precision of the steel main beam of the track beam and is beneficial to promoting the wide application of the steel-concrete combined beam and steel beam structure in straddle type monorail transit.
In order to achieve the aim, the invention provides a manufacturing method of a straddle type monorail steel-concrete combined track beam stable surface structural part, which is characterized by comprising the following steps:
s100, performing full-bridge integral lofting, and cutting and blanking plates of the stable surface component after segmentation, wherein the plates comprise a panel, a longitudinal supporting plate and a transverse supporting plate;
s200, placing the panel on a platform, drawing a central line for the panel, and drawing a longitudinal supporting plate positioning line and a transverse supporting plate positioning line to two sides by taking the central line as a reference;
s300, after the borderlines of the longitudinal supporting plate and the transverse supporting plate are respectively aligned with the positioning line of the longitudinal supporting plate and the positioning line of the transverse supporting plate on the panel, the longitudinal supporting plate and the transverse supporting plate are fixed on the panel and then welded, and the borderlines of the contact sides are trimmed.
Further, in the step S100, the cutting and blanking manner is precision numerical control cutting and blanking of a numerical control cutting machine.
Further, in step S200, the positioning line of the transverse supporting plates is drawn based on 3-5mm of the flush head of the panel end, and the distance between the transverse supporting plates is 30-45 cm.
Further, the welding manner in step S300 includes CO2Gas shielded welding, submerged arc welding or laser-electric arc hybrid welding.
The invention also provides an assembling method using the stable surface structural part, which is characterized by comprising the following steps of:
s1000, after assembling of the steel main beam box body and deformation correction of the extending flange are completed, drawing positioning lines of the longitudinal supporting plate and the transverse supporting plate on the web plate by taking the center line of the web plate as a reference;
s2000, assembling the stabilizing surface component, aligning the side lines of the longitudinal supporting plate and the transverse supporting plate of the stabilizing surface component with the positioning lines of the longitudinal supporting plate and the transverse supporting plate drawn on the web respectively, fixing and completing welding of the stabilizing surface component after positioning, wherein the assembly welding of the stabilizing surface component and the main beam adopts an outside single-side fillet welding seam, and the problem that the deformation is difficult to correct when a single-side groove is adopted to weld the beveling of the plate component is avoided.
Further, in step S1000, the transverse supporting plate positioning line is drawn based on 3-5mm of the flush end of the web plate.
Further, in step S2000, the stabilizing surface member and the web plate may be fixed by jacking with a jack or performing thermal correction on the outer side of the panel, so as to achieve accurate attachment of the stabilizing surface member and the web plate, and control the beam width between the stabilizing panels on two sides of the steel main beam box, so that the error accuracy meets the requirement of the control standard.
Technical effects
The invention provides a manufacturing method and an assembling method of a straddle type single-rail steel-concrete combined track beam stable surface component, which are characterized in that reasonable manufacturing process and assembling mode are adopted, the drawing of main plate positioning lines and the reasonable use of measures such as splicing method, jack jacking, panel outside fire correction, outside single-surface fillet welding between a stable surface component and a main beam web plate and the like are adopted in the butt joint position, and the problems of difficult control of the processing and manufacturing quality and precision of the single-rail steel-concrete combined track beam and the single-rail steel track beam stable surface component are solved. The novel assembling method provided by the invention is beneficial to the wide application of the steel-concrete combined beam and steel beam structure in straddle type monorail traffic.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a schematic illustration of the positioning of a stabilizer panel assembly according to a preferred embodiment of the present invention;
FIG. 2 is a schematic illustration of the stabilizer member assembly web positioning in accordance with a preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of a steel main rail of a track beam according to a preferred embodiment of the present invention;
FIG. 4 is an assembled view of a stabilizer member in accordance with a preferred embodiment of the present invention.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
The invention provides a manufacturing method of a straddle type single-rail steel-concrete combined track beam stabilizing surface structural member, which is characterized by comprising the following steps of:
s100, performing full-bridge integral lofting, and cutting and blanking plates of the stable surface component after segmentation, wherein the plates comprise a panel, a longitudinal supporting plate and a transverse supporting plate;
s200, placing the panel on a platform, drawing a center line for the panel, and drawing a longitudinal supporting plate positioning line and a transverse supporting plate positioning line to two sides by taking the center line as a reference, so that the manufacturing accuracy of the stable surface component is controlled, and the problem of insufficient manufacturing accuracy of the single component caused by inaccurate positioning is avoided;
s300, after the borderlines of the longitudinal supporting plate and the transverse supporting plate are respectively aligned with the positioning line of the longitudinal supporting plate and the positioning line of the transverse supporting plate on the panel, the longitudinal supporting plate and the transverse supporting plate are fixed on the panel and then welded, and the borderlines of the contact sides are trimmed.
In a preferred embodiment, the cutting and blanking manner in step S100 is a precision numerical control cutting and blanking manner of a numerical control cutting machine.
In a preferred embodiment, the positioning line of the transverse supporting plates in step S200 is drawn based on 3-5mm of the flush ends of the panel plates, and the distance between the transverse supporting plates is 30-45 cm.
In a preferred embodiment, the welding manner in step S300 includes CO2Gas shielded welding, submerged arc welding or laser-electric arc hybrid welding.
The requirement of rigid fixation of the edge of the clapboard is provided for the manufacture of the stable surface member, and the problem of wave deformation caused by the heating of the stable surface panel during welding operation is avoided.
The invention also provides an assembling method using the stable surface structural part, which is characterized by comprising the following steps of:
s1000, after the steel girder box body is assembled and the flange extending out of the box body is deformed and corrected, the positioning lines of the longitudinal supporting plate and the transverse supporting plate on the web plate are drawn by taking the center line of the web plate as a reference, and the problems of accurate positioning of a stabilizing surface component and the steel girder body and linear positioning of a component foundation are solved by drawing the positioning lines of the longitudinal supporting plate and the transverse supporting plate on the web plate of the steel girder;
s2000, assembling the stabilizing surface member, aligning the side lines of the longitudinal supporting plate and the transverse supporting plate of the stabilizing surface member with the positioning lines of the longitudinal supporting plate and the transverse supporting plate drawn on the web plate respectively, fixing after positioning, and completing welding of the stabilizing surface member, wherein the assembly welding of the stabilizing surface member and the main beam adopts an outside single-side fillet welding seam, so that the operation of arranging a groove on the longitudinal supporting plate is avoided, the deformation of the stabilizing surface member which is difficult to correct is avoided, and the problem of linear coordination and consistency of the stabilizing surface member and the outer surface of the web plate is solved.
In a preferred embodiment, the transverse support plate positioning line in step S1000 is drawn with reference to 3-5mm of the web plate end flush.
In a preferred embodiment, in step S2000, the stabilizing surface member and the web plate are fixed by jacking with a jack or by thermal correction outside the panel, so as to achieve precise fitting between the stabilizing surface member and the web plate, and control the beam width between the stabilizing panels on two sides of the steel girder box, so that the error precision meets the requirement of the control standard.
The invention provides a manufacturing method and an assembling method of a straddle type single-rail steel-concrete combined track beam stable surface component, which are characterized in that reasonable manufacturing process and assembling mode are adopted, the drawing of main plate positioning lines and the reasonable use of measures such as splicing method, jack jacking, panel outside fire correction, outside single-surface fillet welding between a stable surface component and a main beam web plate and the like are adopted in the butt joint position, and the problems of difficult control of the processing and manufacturing quality and precision of the single-rail steel-concrete combined track beam and the single-rail steel track beam stable surface component are solved. The novel assembling method provided by the invention is beneficial to the wide application of the steel-concrete combined beam and steel beam structure in straddle type monorail traffic.
As shown in fig. 1, a schematic view of the positioning of the assembled panels of the stabilizer members according to a preferred embodiment of the present invention is shown, in which the panels of the stabilizer members are placed on a platform, a central line is drawn by a stone, and longitudinal support plate positioning lines are drawn to both sides with the central line as a reference; and drawing all transverse supporting plate positioning lines towards the other end by taking a machining allowance line of 3-5mm flush at the end of the panel as a reference.
As shown in fig. 2, a schematic diagram of positioning a stabilizer plate assembly web according to a preferred embodiment of the present invention, after the steel girder box is assembled and the deformation of the extended flange is corrected, positioning lines of the longitudinal support plate and the transverse support plate on the web are drawn by using a center line of the web as a reference, wherein the positioning lines of the transverse support plate are drawn by using a machining allowance of 3-5mm for flush of the end of the web as a reference.
As shown in FIG. 3, the cross-sectional view of the steel main beam of the track beam according to the preferred embodiment of the present invention, the stabilizer structures are welded to the web of the steel main beam, respectively.
As shown in fig. 4, an assembly diagram of the stable surface member according to a preferred embodiment of the present invention is that, considering that the length of the track beam segment is relatively long and the stable surface member is relatively flexible, a segmented blanking manner is adopted during blanking, and the butt joint position is a splicing method, and the splicing length is not less than 200mm, so that the butt joint of the stable surface member is realized, and the problems of insufficient rigidity and inconvenient processing of the stable surface member are solved.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. A manufacturing method of a straddle type single-rail steel-concrete combined track beam stabilizing surface structural member is characterized by comprising the following steps:
s100, performing full-bridge integral lofting, and cutting and blanking plates of the stable surface component after segmentation, wherein the plates comprise a panel, a longitudinal supporting plate and a transverse supporting plate;
s200, placing the panel on a platform, drawing a central line for the panel, and drawing a longitudinal supporting plate positioning line and a transverse supporting plate positioning line to two sides by taking the central line as a reference;
s300, after the borderlines of the longitudinal supporting plate and the transverse supporting plate are respectively aligned with the positioning line of the longitudinal supporting plate and the positioning line of the transverse supporting plate on the panel, the longitudinal supporting plate and the transverse supporting plate are fixed on the panel and then welded, and the borderlines of the contact sides are trimmed.
2. The manufacturing method according to claim 1, wherein the cutting and blanking manner in step S100 is a precision numerical control cutting and blanking manner of a numerical control cutting machine.
3. The manufacturing method according to claim 1, wherein the transverse supporting plate positioning line in step S200 is drawn with reference to a machining allowance line of 3-5mm of the flush of the panel ends, and the distance between the transverse supporting plates is 30-45 cm.
4. The manufacturing method of claim 1, wherein the welding manner in step S300 includes CO2Gas shielded welding, submerged arc welding or laser-electric arc hybrid welding.
5. A method of assembling a stabilising surface structure manufactured using a method according to any one of claims 1 to 4, the method comprising the steps of:
s1000, after assembling of the steel main beam box body and deformation correction of the extending flange are completed, drawing positioning lines of the longitudinal supporting plate and the transverse supporting plate on the web plate by taking the center line of the web plate as a reference;
s2000, assembling the stabilizing surface component, aligning the side lines of the longitudinal supporting plate and the transverse supporting plate of the stabilizing surface component with the positioning lines of the longitudinal supporting plate and the transverse supporting plate drawn on the web respectively, fixing and completing welding of the stabilizing surface component after positioning, wherein the assembly welding of the stabilizing surface component and the main beam adopts an outside single-side fillet welding seam, and the problem that the deformation is difficult to correct when a single-side groove is adopted to weld the beveling of the plate component is avoided.
6. The assembly method of claim 5, wherein the transverse support plate alignment line in step S1000 is drawn with respect to the web plate end flush of 3-5 mm.
7. The assembling method according to claim 5, wherein in step S2000, the stabilizing surface member and the web are fixed by jacking with a jack or by thermal correction outside the panel, so as to achieve precise fitting of the stabilizing surface member and the web, and control the beam width between the stabilizing panels on both sides of the steel girder box, so that the error precision meets the requirement of the control standard.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110049769.2A CN112872729A (en) | 2021-01-14 | 2021-01-14 | Manufacturing method and assembling method of straddle type single-rail steel-concrete combined track beam stable surface component |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110049769.2A CN112872729A (en) | 2021-01-14 | 2021-01-14 | Manufacturing method and assembling method of straddle type single-rail steel-concrete combined track beam stable surface component |
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Application publication date: 20210601 |