CN114876187A - Steel mould building and manufacturing method for large concrete curved surface modeling - Google Patents
Steel mould building and manufacturing method for large concrete curved surface modeling Download PDFInfo
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- CN114876187A CN114876187A CN202210528899.9A CN202210528899A CN114876187A CN 114876187 A CN114876187 A CN 114876187A CN 202210528899 A CN202210528899 A CN 202210528899A CN 114876187 A CN114876187 A CN 114876187A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 45
- 239000010959 steel Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000010276 construction Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 4
- 238000003491 array Methods 0.000 claims description 3
- 238000011900 installation process Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 3
- 241000282806 Rhinoceros Species 0.000 description 2
- 238000011960 computer-aided design Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000005770 birds nest Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 235000005765 wild carrot Nutrition 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/04—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G9/06—Forming boards or similar elements the form surface being of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a steel mould building and manufacturing method for large concrete curved surface modeling, which comprises the following steps: radially distributing the support frames around the central jig frame; radially distributing the enclosing purlins on the support frames and the central jig frame to form enclosing purlin support surfaces; mounting and fixing a prefabricated annular rib plate on a supporting surface of the purlin; a plurality of radial rib plates with prefabricated radian are radially and symmetrically arranged between the annular rib plates by taking the central axis of the annular rib plates as a reference to form a curved surface matching surface; sequentially installing the arc-shaped plates with the prefabricated curved surface radians at corresponding positions on the curved surface matching surface until the installation of the whole curved plate is completed; and forming the whole outer ring plate, and welding the curved plate and the outer ring plate to complete the construction of the steel die. The curved surface is assembled in the form of the split pieces, the finally formed curved surface can meet the requirements of various complex curved surfaces through the radian design of each arc-shaped plate split piece, and the forming precision of the finally formed curved surface is ensured through the curved surface matching surface formed by the innovative structure.
Description
Technical Field
The invention belongs to the field of sheet metal machining and manufacturing, and particularly relates to a steel mould building and manufacturing method for large concrete curved surface modeling.
Background
Along with the continuous development of society, people continuously promote beautiful things, the thought is more endlessly, especially in representative building structures, such as bird nest, national theater, ribbon of Kunming airport, etc., all are the perfect interpretation of beautiful things, these are the effects that steel structure can reach, but in our traditional concrete building, such complex curved surface is very difficult to realize, and the cost is also big, for example, how to realize the customization of specific curved surface, how to guarantee the intensity of specific curved surface steel structure, the on-the-spot building step is fairly troublesome, etc., the template of traditional preparation is mostly standard conventional parts such as cylinder, square column, etc., can't satisfy the requirement of these special curved surface shapes.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the method for building and manufacturing the steel mould for the large-scale concrete curved surface modeling is provided, can be suitable for mounting and forming steel structures of various curved surface modeling, has very high curved surface forming precision, avoids building various complex templates on site, is high in building efficiency, and has good popularization.
The technical scheme is as follows: in order to achieve the aim, the invention provides a steel mould building and manufacturing method for large-scale concrete curved surface modeling, which comprises the following steps:
s1: uniformly distributing the support frames around the central jig frame in the radial direction;
s2: uniformly distributing the enclosing purlins on the support frame and the central jig frame in the radial direction to form an enclosing purlin support surface, wherein two ends of each enclosing purlin are respectively fixed on the support frame and the central jig frame;
s3: mounting and fixing prefabricated annular rib plates with different diameters on a supporting surface of the purlin, wherein the annular rib plates are coaxially arranged according to the diameter;
s4: a plurality of radial rib plates with prefabricated radian are radially and symmetrically arranged between the annular rib plates by taking the central axis of the annular rib plates as a reference to form a curved surface matching surface;
s5: sequentially installing the arc-shaped plates with the prefabricated curved surface radians at corresponding positions on the curved surface matching surface until the installation of the whole curved plate is completed;
s6: and installing the outer arc plate between the two enclosing purlins until the whole outer ring plate is formed, and welding the curved plate and the outer ring plate to complete the construction of the steel die.
Further, in step S1, the supporting frame includes two circular arrays, each of which is radially and symmetrically distributed around the central jig frame.
Further, in the step S2, the purlins are radially and symmetrically distributed around the central jig frame.
Further, in the step S4, the height of the annular rib plate matches with the curved surface matching surface.
Further, the installation process of the curved surface matching surface in step S4 is as follows:
firstly, according to a set radial rib plate line, radial rib plates are welded and installed between annular rib plates to form a first radial rib plate arc plate, a reference ring is welded at the middle position of the first radial rib plate arc plate to enable the reference ring to be located at the center position of a center jig frame, then other radial rib plates are welded and installed by taking the reference ring and the set radial rib plate line as a standard, and finally a curved surface matching surface is formed.
Further, in the step S5, butt joints are provided on the arc-shaped plate segments, and the butt joints are used for splicing and welding the arc-shaped plate segments.
Further, an outer ring plate supporting frame for supporting the outer ring plate is arranged on the surrounding purlin in the step S6.
Further, the innermost radial rib plate is welded on the reference ring.
Further, in the step S5, the radian of the radial rib plate is formed by pressing through a curved surface die.
Further, the mounting of the respective components in steps S1 to S6 is assisted by ground-sample scribing.
Has the beneficial effects that: compared with the prior art, the curved surface is assembled in the form of the split pieces, the finally formed curved surface can meet the requirements of various complex curved surfaces through the radian design of each arc-shaped plate split piece, and the curved surface matching surface formed through an innovative structure can be matched with the arc-shaped plate split piece, so that the forming precision of the finally formed curved surface is ensured, the on-site steel mould building is simple and efficient, the building efficiency is high, and the popularization is good.
Drawings
FIG. 1 is a schematic diagram of a construction flow of the method of the present invention;
FIG. 2 is a schematic drawing of a steel die scheme;
FIG. 3 is a schematic drawing of a ground sample process;
FIG. 4 is a design drawing of a bottom plane built with steel molds;
FIG. 5 is a sectional design drawing of steel mold construction;
FIG. 6 is a top view structural diagram of a steel die;
fig. 7 is a bottom view of the steel die.
Detailed Description
The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.
Referring to fig. 1, the invention provides a steel structure model for large concrete curved surface modeling, which comprises a central jig frame 1, two circular array support frames 2, 12 purlins 3 forming a circular array, an outer ring plate support frame 4 positioned on the purlins 3, 5 annular rib plates 5 with different diameters, a reference ring 7, a plurality of radial rib plates 6, 6 arc plate fragments 8, a plurality of outer arc plates 9 and channel steel reinforcing ribs 11 arranged on the outer arc plates 9.
In this embodiment, the steel structure model is used for the steel structure building and forming of the large concrete surface modeling, and the concrete process is as follows:
1. firstly, determining and designing a scheme of a steel structure model according to the actual requirements of a curved surface, modeling a modeling spherical surface by combining CAD (computer-aided design) and Rhinoceros (Rhinoceros) software, determining segmentation and various reinforcement arrangements by combining a field construction scheme, and generating a workshop manufacturing drawing, wherein the specific drawing can be shown in figure 2.
2. The workshop is according to the blueprint, for example the blueprint that fig. 4 and 5 show, makes the part that corresponds specification requirement, and wherein 6 arc plate fragmentations 8 are formed through the curved surface mould suppression, specifically are: the curved surface die for cold machining is manufactured according to the curvature of the curved surface of the steel die, the curved surface die used in the embodiment is a spherical surface die with the diameter of 1.2 meters, the upper die and the lower die are machined into a hemispherical surface by adopting numerical control, the upper die is connected with the top of a press through a connecting rod, the lower die is connected with a working platform, and the upper die and the lower die are matched on a straight line by adjusting a bottom bolt. Cold processing of the curved surface: after the bent plate is blanked according to a drawing, an upper die is pressed, point pressing is carried out transversely along the length direction of the part, the bent plate is gradually pushed towards the other end, when each cross section is finished, the curvature of each direction is checked by adopting an inner arc sample plate, each subsequent pressing is overlapped with the previous pressing, each curved surface is consistent, and after the pressing is finished, the allowance is drawn by a riveter according to the position of an allowance line.
Finally, the 6 arc-shaped plate fragments 8 respectively have the corresponding radian.
3. And (3) marking the ground sample method according to the design drawing on the construction site by the worker, wherein the specific marking drawing is shown in figure 3.
4. The steel structure model is built on site with reference to the line drawing shown in fig. 3.
The embodiment provides a steel mould building and manufacturing method for large concrete surface modeling, and with reference to fig. 1, the method comprises the following steps:
s1: drawing a scribe line on the ground of the site according to the design drawing, as shown in detail in the first part 100 of fig. 1;
s2: according to the drawing, the position of the central jig frame 1 is determined, and the support frames 2 are radially and symmetrically distributed around the central jig frame 1 to form two circular arrays;
s3: according to the scribing, 12 purlins 3 are radially and symmetrically arranged on a support frame 2 and a central jig frame 1, the included angle between every two adjacent purlins 3 is 30 degrees, a purlin support surface is formed, two ends of each purlin 3 are respectively fixed on the support frame 2 and the central jig frame 1, and the structure after installation is as shown in the first part of the figure 1;
s4: as shown in the second part of fig. 1, according to a drawn circumferential rib plate line, 5 circumferential rib plates 5 with different prefabricated diameters are sequentially installed and fixed on a supporting surface of the enclosing purlin, the annular rib plates 5 are coaxially arranged according to the diameter, the heights of the 5 circumferential rib plates 5 are gradually increased from inside to outside in the embodiment, and the outermost annular rib plate 5 is fixed on an outer annular plate supporting frame 4 on the enclosing purlin 3, so that the whole 5 circumferential rib plates 5 form a high-low arc surface;
s4: as shown in the second part of fig. 1, firstly, according to a set radial rib plate line, radial rib plates 6 are welded and installed between annular rib plates 5 to form a first radial rib plate arc-shaped plate, and a reference ring 7 is welded at the middle position of the first radial rib plate arc-shaped plate, so that the reference ring 7 is positioned at the central position of a central jig frame 1;
as shown in the third part of fig. 1, with the reference ring 7 and a set radial rib plate line as a standard, other radial rib plates are welded and installed, the innermost radial rib plate 6 is welded on the reference ring 7, and finally a curved surface matching surface is formed;
s5: as shown in the fourth part of fig. 1, 6 arc-shaped plate segments 8 with prefabricated curved surface radians are sequentially installed at corresponding positions on a curved surface matching surface, and are spliced and welded with each other through butt joints until the installation of the whole curved plate 12 is completed;
s6: as shown in the fifth part of fig. 1, the outer arc plate 9 is installed between two surrounding purlins 3 until a whole outer ring plate 10 is formed, channel steel reinforcing ribs 11 are welded on the outer arc plate 9, the outer ring plate 10 is located on the outer ring plate support frame 4, the curved plate 12 and the outer ring plate 10 are welded to complete steel mold building, and fig. 6 and 7 are schematic diagrams of a final steel mold.
According to the example, the steel structure model building method provided by the invention can be suitable for building steel structure models with different complex curved surface requirements on site, meets the use requirements of different curved surface steel structure models in the market, and has very good curved surface precision and very good feasibility for building on site.
The manufacturing method of the mould can be used for large-scale concrete building modeling, the manufacturing method can be widely applied to various concrete steel moulds, and after the steel mould is manufactured by the method, the concrete is molded smoothly and beautifully, the building design molding requirements are met, the installation and the disassembly are convenient, the strength is met, the steel mould is light in weight, the manufacturing is convenient, the cost is low, the resources are saved, and the production efficiency is greatly improved.
Claims (10)
1. A steel mould building and manufacturing method for large concrete surface modeling is characterized by comprising the following steps:
s1: uniformly distributing the support frames around the central jig frame in the radial direction;
s2: uniformly distributing the enclosing purlins on the support frame and the central jig frame in the radial direction to form an enclosing purlin support surface, wherein two ends of each enclosing purlin are respectively fixed on the support frame and the central jig frame;
s3: mounting and fixing prefabricated annular rib plates with different diameters on a supporting surface of the purlin, wherein the annular rib plates are coaxially arranged according to the diameter;
s4: a plurality of radial rib plates with prefabricated radian are radially and symmetrically arranged between the annular rib plates by taking the central axis of the annular rib plates as a reference to form a curved surface matching surface;
s5: sequentially installing the arc-shaped plates with the prefabricated curved surface radians at corresponding positions on the curved surface matching surface until the installation of the whole curved plate is completed;
s6: and installing the outer arc plate between the two enclosing purlins until the whole outer ring plate is formed, and welding the curved plate and the outer ring plate to complete the construction of the steel die.
2. The method for building and manufacturing the steel die for the large-scale concrete curved surface modeling according to claim 1, wherein the supporting frame in the step S1 comprises two circular arrays which are respectively and radially and symmetrically distributed around the central jig frame.
3. The method for building and manufacturing the steel die for the large-scale concrete curved surface modeling according to claim 1, wherein the purlins in the step S2 are radially and symmetrically distributed around the central jig frame.
4. The method for building and manufacturing the steel die for the large-scale concrete curved surface modeling according to claim 1, wherein the height of the annular rib plate in the step S4 is matched with the curved surface matching surface.
5. The steel mold building and manufacturing method for large concrete surface modeling according to claim 1, wherein the installation process of the curved surface matching surface in the step S4 is as follows:
firstly, according to a set radial rib plate line, radial rib plates are welded and installed between annular rib plates to form a first radial rib plate arc plate, a reference ring is welded at the middle position of the first radial rib plate arc plate to enable the reference ring to be located at the center position of a center jig frame, then other radial rib plates are welded and installed by taking the reference ring and the set radial rib plate line as a standard, and finally a curved surface matching surface is formed.
6. The method for building and manufacturing the steel die for the large-scale concrete curved surface modeling according to claim 1, wherein butt joints are arranged on the arc-shaped plate fragments in the step S5, and the butt joints are used for splicing and welding the arc-shaped plate fragments.
7. The method for building and manufacturing the steel die for the curved surface modeling of the large concrete according to claim 1, wherein the surrounding purlin in the step S6 is provided with an outer ring plate supporting frame for supporting an outer ring plate.
8. The method for building and manufacturing the steel die for the large-scale concrete curved surface modeling according to claim 5, wherein the innermost radial rib plate is welded on the reference ring.
9. The method for building and manufacturing the steel die for the large-scale concrete curved surface modeling according to claim 1, wherein the radian of the radial rib plate in the step S5 is formed by pressing through a curved surface die.
10. The method for building and manufacturing the steel die for the curved surface modeling of the large concrete according to claim 1, wherein the installation of each part in the steps S1-S6 is assisted by drawing lines by a ground-sample method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528899.9A CN114876187A (en) | 2022-05-16 | 2022-05-16 | Steel mould building and manufacturing method for large concrete curved surface modeling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528899.9A CN114876187A (en) | 2022-05-16 | 2022-05-16 | Steel mould building and manufacturing method for large concrete curved surface modeling |
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| CN114876187A true CN114876187A (en) | 2022-08-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631684A (en) * | 2014-12-26 | 2015-05-20 | 江苏沪宁钢机股份有限公司 | Single-layer latticed shell steel structure roof system based on concrete building and assembling method of single-layer latticed shell steel structure roof system based on concrete building |
| CN205088786U (en) * | 2015-10-30 | 2016-03-16 | 北京城建集团有限责任公司 | Large -span prestressing force dome structure |
| CN111270852A (en) * | 2020-03-27 | 2020-06-12 | 贵州建工集团第四建筑工程有限责任公司 | Construction method of novel formwork support system for reinforced concrete silo dome |
| CN111379321A (en) * | 2020-04-07 | 2020-07-07 | 兰州理工大学 | Ultra-large span dome structure |
| CN112343233A (en) * | 2020-11-06 | 2021-02-09 | 山西五建集团有限公司 | Round roof space pipe truss structure and construction method thereof |
-
2022
- 2022-05-16 CN CN202210528899.9A patent/CN114876187A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631684A (en) * | 2014-12-26 | 2015-05-20 | 江苏沪宁钢机股份有限公司 | Single-layer latticed shell steel structure roof system based on concrete building and assembling method of single-layer latticed shell steel structure roof system based on concrete building |
| CN205088786U (en) * | 2015-10-30 | 2016-03-16 | 北京城建集团有限责任公司 | Large -span prestressing force dome structure |
| CN111270852A (en) * | 2020-03-27 | 2020-06-12 | 贵州建工集团第四建筑工程有限责任公司 | Construction method of novel formwork support system for reinforced concrete silo dome |
| CN111379321A (en) * | 2020-04-07 | 2020-07-07 | 兰州理工大学 | Ultra-large span dome structure |
| CN112343233A (en) * | 2020-11-06 | 2021-02-09 | 山西五建集团有限公司 | Round roof space pipe truss structure and construction method thereof |
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