CN111636303A - Cross baseline control method for block assembly manufacturing of curved steel box structure - Google Patents
Cross baseline control method for block assembly manufacturing of curved steel box structure Download PDFInfo
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- CN111636303A CN111636303A CN202010442748.2A CN202010442748A CN111636303A CN 111636303 A CN111636303 A CN 111636303A CN 202010442748 A CN202010442748 A CN 202010442748A CN 111636303 A CN111636303 A CN 111636303A
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- box structure
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention relates to the technical field of building construction, in particular to a cross baseline control method for block assembly manufacturing of a curved steel box structure, which comprises the following steps: step 1, making a horizontal base line and a vertical base line on a tiled bottom plate unit as positioning references for assembly; step 2, ensuring that each unit element is uniformly distributed with transverse base lines; step 3, ensuring that longitudinal baselines are uniformly distributed on each unit piece; step 4, drawing a ground sample line according to a coordinate system, and mounting a jig frame; and 5: assembling all the tiled bottom plate units in the assembly round according to the ground sample lines, the horizontal base lines and the vertical base lines; and 6, sequentially assembling the subsequent inner partition plate, the lateral wall plate and the top plate of the curved steel box structure on the basis of the tiled bottom plate unit until the whole box structure is assembled. The method is simple to operate, effectively improves the linear precision of the assembly of the curved steel box structure, ensures the construction quality, reduces the assembly difficulty, improves the construction efficiency and indirectly saves the construction cost.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a cross baseline control method for block assembly manufacturing of a curved steel box structure.
Background
With the continuous promotion of the comprehensive national force of China, steel structure buildings are more and more widely developed and applied. Aiming at large-scale curved steel box structural members related in special structures, such as steel box structures in large-span arch bridges, curved steel box girders in urban interchange ramp bridges and the like, the processing and manufacturing difficulty is high, and the control of the linear shape of the curve is difficult. The traditional technology adopts contour line positioning assembly of single elements, so that the positioning is inaccurate, the engineering quality is reduced, and the use is inconvenient. In view of this, we propose a cross baseline control method for the block assembly manufacturing of the curved steel box structure.
Disclosure of Invention
The invention aims to provide a cross baseline control method for the block assembly manufacturing of a curved steel box structure, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a cross baseline control method for block assembly manufacturing of a curved steel box structure is used for assembling tiled bottom plate units of 1 st to Nth (N is a natural number) sections in turn, wherein the tiled bottom plate units are composed of unit elements of 1 st to I (I is a natural number) blocks, and the method comprises the following steps:
step 1: determining the overall design curve line shape of the steel box structure through simulation lofting, accurately drawing a horizontal base line and a vertical base line on a unit element of a tiled bottom plate unit, and marking, wherein the horizontal base line and the vertical base line are used as positioning references for splicing the tiled bottom plate unit of the steel box structure;
step 2: each transverse base line in the radial direction of the curve line shape should penetrate all the unit elements in the section; one or more transverse base lines are arranged according to the number of the columns of the unit elements in each section, so that the transverse base lines are distributed on each unit element;
and step 3: each longitudinal base line at least penetrates through the tiled bottom plate units of two segments along the annular direction of the curve line shape, and one or more longitudinal base lines are arranged according to the row number of the unit elements in each segment so as to ensure that the longitudinal base lines are uniformly distributed on each unit element;
and 4, step 4: planning a relative coordinate system in an assembly area according to the structural characteristics of the steel box structure and the assembly site conditions, drawing ground sample lines according to the coordinate system, and mounting a jig frame;
and 5: and sequentially assembling unit pieces on the jig frame according to the ground sample line, the transverse base line and the longitudinal base line until the assembly of all the tiled bottom plate units in the assembly round is completed.
Step 6: and sequentially assembling the subsequent inner partition plate, the lateral wall plate and the top plate of the curved steel box structure on the basis of the tiled bottom plate unit until the whole box structure is assembled.
Preferably, step 5 comprises the steps of:
step 51: according to a ground sample line and a transverse base line and a longitudinal base line on the 1 st block unit piece of the 1 st section of tiled bottom plate unit, positioning and completing the assembly of the 1 st block unit piece on a jig frame, and so on until the assembly of the I-th block unit piece of the 1 st section of tiled bottom plate unit is completed;
step 52: and (5) circulating the step 51 until the assembly of the I block unit pieces of the tiled bottom plate unit of the Nth section is completed, and thus, the installation of all the tiled bottom plate units of the steel box structure in the assembly round is completed.
Preferably, in the assembling process, the number of the segments of the tiled floor units participating in assembling at the same time in the steps 51 and 52 is not less than 3.
Preferably, the horizontal base line and the vertical base line are both straight lines.
Preferably, the transverse base lines are arranged along the radial direction of the curved line shape of the steel box structure, and the longitudinal base lines are arranged along the circumferential direction of the curved line shape of the steel box structure.
Preferably, adjacent longitudinal baselines should overlap in a crossing manner for ensuring continuity of the longitudinal positioning reference.
Compared with the prior art, the invention has the beneficial effects that: according to the method for controlling the crossed base lines for the block assembly manufacturing of the curved steel box structure, the horizontal base lines, the vertical base lines and the ground sample lines of the assembly area coordinate system on the unit elements are utilized, the flat bottom plate units are assembled on the jig frame in a block assembly and sectional mode by utilizing the characteristics that the horizontal base lines and the vertical base lines are crossed and collinearly associated with each other, the curve radial positioning is carried out by utilizing the horizontal base lines, the curve circumferential positioning is carried out by the vertical base lines, the ground sample lines of the coordinate system are rechecked and corrected, the operation is simple, the effect of accurate positioning is achieved, the assembly precision of the curved steel box structure is effectively improved, the manufacturing line shape and the assembly quality of the curved structure are ensured, the assembly difficulty is reduced, the construction efficiency is obviously.
Drawings
FIG. 1 is a partial structural diagram of the N (N is a natural number) tiled backplane unit according to the present invention;
FIG. 2 is a flow chart of a control method for the horizontal baseline and the vertical baseline of the present invention;
fig. 3 is a flow chart of the assembly of the tiled floor units of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a technical solution provided by the present invention is:
a cross baseline control method for block assembly manufacturing of a curved steel box structure is used for assembling tiled bottom plate units of 1 st to Nth (N is a natural number) sections in turn, wherein the tiled bottom plate units are composed of unit elements of 1 st to I (I is a natural number) blocks, and the method comprises the following steps:
step 1: determining the overall design curve line shape of the steel box structure through simulation lofting, accurately drawing a horizontal base line and a vertical base line on a unit element of a tiled bottom plate unit, and marking, wherein the horizontal base line and the vertical base line are both straight lines, the horizontal base line is arranged along the radial direction of the curve line shape of the steel box structure, the vertical base line is arranged along the circumferential direction of the curve line shape of the steel box structure, adjacent vertical base lines are overlapped in a crossing manner and used for ensuring the continuity of a longitudinal positioning reference, and the horizontal base line and the vertical base line are used as positioning references for splicing the tiled bottom plate unit of the steel box structure;
step 2: each transverse base line in the radial direction of the curve line shape should penetrate all the unit elements in the section; one or more transverse base lines are arranged according to the number of the columns of the unit elements in each section, so that the transverse base lines are distributed on each unit element;
and step 3: each longitudinal base line at least penetrates through the tiled bottom plate units of two segments along the annular direction of the curve line shape, and one or more longitudinal base lines are arranged according to the row number of the unit elements in each segment so as to ensure that the longitudinal base lines are uniformly distributed on each unit element;
and 4, step 4: planning a relative coordinate system in an assembly area according to the structural characteristics of the steel box structure and the assembly site conditions, drawing ground sample lines according to the coordinate system, and mounting a jig frame;
and 5: and sequentially assembling unit pieces on the jig frame according to the ground sample line, the transverse base line and the longitudinal base line until the assembly of all the tiled bottom plate units in the assembly round is completed.
Step 6: and sequentially assembling the subsequent inner partition plate, the lateral wall plate and the top plate of the curved steel box structure on the basis of the tiled bottom plate unit until the whole box structure is assembled.
In this embodiment, step 5 includes the following steps:
step 51: according to a ground sample line and a transverse base line and a longitudinal base line on the 1 st block unit piece of the 1 st section of the tiled bottom plate unit, positioning and completing the assembly of the 1 st block unit piece on a jig frame, and so on until the assembly of the I-th block unit piece of the 1 st section of the tiled bottom plate unit is completed;
step 52: and (5) circulating the step 51 until the assembly of the I block unit pieces of the tiled bottom plate unit of the Nth section is completed, and thus, the installation of all the tiled bottom plate units of the steel box structure in the assembly round is completed.
It should be noted that, due to the large structural size of the steel box structure, considering factors such as transportation and hoisting of the unit elements, each section is assembled by using a plurality of unit elements in a block manner, and in the assembling process of step 51 and step 52, the number of the sections of each tiled base plate unit which simultaneously participates in the assembling is not less than 3.
When the control method for the crossed base lines for the block assembly manufacturing of the curved steel box structure is used, according to the horizontal base lines, the vertical base lines and the ground sample lines of the assembly area coordinate system on the unit elements, by utilizing the characteristics that the horizontal base lines and the vertical base lines are crossed with each other and are in collinear correlation, the tiled bottom plate units are assembled in blocks and in sections on the jig frame, the curved radial positioning is carried out according to the horizontal base lines, the curved circumferential positioning is carried out on the vertical base lines, the rechecking correction is carried out on the ground sample lines of the coordinate system, each horizontal base line penetrates through all the unit elements in the curved radial direction, each vertical base line penetrates through at least two sections of tiled bottom plate units along the curved circumferential direction, the adjacent vertical base lines are crossed and overlapped to ensure the control precision of the assembly line shape, and during and after the assembly of each unit element is completed, the rechecking correction is carried out on the ground, and then sequentially assembling the subsequent inner partition plate, the lateral wall plate and the top plate of the curve steel box structure on the basis of tiling the bottom plate units until the whole box structure is formed after assembling, so that the operation is simple, the effect of accurate positioning is realized, the assembling precision of the curve steel box structure is effectively improved, the manufacturing line shape and the assembling quality of the curve structure are ensured, the assembling difficulty is reduced, the construction efficiency is obviously improved, the construction cost is indirectly saved, and the popularization and the promotion are facilitated.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A cross baseline control method for block assembly manufacturing of a curved steel box structure is used for assembling tiled bottom plate units of 1 st to Nth (N is a natural number) sections in turn, wherein the tiled bottom plate units are composed of unit elements of 1 st to I (I is a natural number) blocks, and is characterized in that: the method comprises the following steps:
step 1: determining the overall design curve line shape of the steel box structure through simulation lofting, accurately drawing a horizontal base line and a vertical base line on a tiled base plate unit piece, and marking, wherein the horizontal base line and the vertical base line are used as positioning references for splicing the tiled base plate unit of the steel box structure;
step 2: each transverse base line in the radial direction of the curve line shape should penetrate all the unit elements in the section; one or more transverse base lines are arranged according to the number of the columns of the unit elements in each section, so that the transverse base lines are distributed on each unit element;
and step 3: each longitudinal base line at least penetrates through the tiled bottom plate units of two segments along the annular direction of the curve line shape, and one or more longitudinal base lines are arranged according to the row number of the unit elements in each segment so as to ensure that the longitudinal base lines are uniformly distributed on each unit element;
and 4, step 4: planning a relative coordinate system in an assembly area according to the structural characteristics of the steel box structure and the assembly site conditions, drawing ground sample lines according to the coordinate system, and mounting a jig frame;
and 5: sequentially assembling unit elements on the jig frame according to the ground sample line, the transverse base line and the longitudinal base line until the assembly of all the tiled bottom plate units in the assembly round is completed;
step 6: and sequentially assembling the subsequent inner partition plate, the lateral wall plate and the top plate of the curved steel box structure on the basis of the tiled bottom plate unit until the whole box structure is assembled.
2. The cross-baseline control method for the block assembly manufacturing of the curved steel box structure according to claim 1, wherein: step 5 comprises the following steps:
step 51: according to a ground sample line and a transverse base line and a longitudinal base line on the 1 st block unit piece of the 1 st section of the tiled bottom plate unit, positioning and completing the assembly of the 1 st block unit piece on a jig frame, and so on until the assembly of the I-th block unit piece of the 1 st section of the tiled bottom plate unit is completed;
step 52: and (5) circulating the step 51 until the assembly of the I block unit pieces of the tiled bottom plate unit of the Nth section is completed, and thus, the installation of all the tiled bottom plate units of the steel box structure in the assembly round is completed.
3. The cross-baseline control method for the block assembly manufacturing of the curved steel box structure according to claim 2, wherein: in the assembling process, in the step 51 and the step 52, the number of the segments of the tiled bottom plate units simultaneously participating in assembling is not less than 3.
4. The cross-baseline control method for the block assembly manufacturing of the curved steel box structure according to claim 1, wherein: the horizontal base line and the vertical base line are both straight lines.
5. The cross-baseline control method for the block assembly manufacturing of the curved steel box structure according to claim 1, wherein: the horizontal base lines are arranged along the radial direction of the curve line shape of the steel box structure, and the vertical base lines are arranged along the circumferential direction of the curve line shape of the steel box structure.
6. The cross-baseline control method for the block assembly manufacturing of the curved steel box structure according to claim 1, wherein: the adjacent longitudinal baselines should be overlapped in a crossing way, so as to ensure the continuity of the longitudinal positioning datum.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442748.2A CN111636303B (en) | 2020-05-22 | 2020-05-22 | Cross baseline control method for block assembly manufacturing of curve steel box structure |
| DE102021113293.2A DE102021113293A1 (en) | 2020-05-22 | 2021-05-21 | A cross baseline control method for the block assembly and manufacture of curved steel box structures |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010442748.2A CN111636303B (en) | 2020-05-22 | 2020-05-22 | Cross baseline control method for block assembly manufacturing of curve steel box structure |
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| CN111636303A true CN111636303A (en) | 2020-09-08 |
| CN111636303B CN111636303B (en) | 2023-05-02 |
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| CN114214959B (en) * | 2021-12-31 | 2024-03-26 | 中铁宝桥集团有限公司 | Vertical linear lofting method for manufacturing oblique steel box girder |
| CN115162182B (en) * | 2022-07-20 | 2023-09-15 | 中国五冶集团有限公司 | Cantilever type steel box girder high-precision cable hoisting construction method |
| CN115533125B (en) * | 2022-10-18 | 2024-06-18 | 中建科工集团有限公司 | Manufacturing method of special-shaped stainless steel body based on 3D printing model |
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| JP2000008327A (en) * | 1998-06-24 | 2000-01-11 | Kawada Industries Inc | Erection constructing method for curved steel floor plate bridge |
| CN101709571A (en) * | 2009-12-03 | 2010-05-19 | 中铁宝桥集团有限公司 | Preparation method of set of datum lines of bridge steel box girder |
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2020
- 2020-05-22 CN CN202010442748.2A patent/CN111636303B/en active Active
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2021
- 2021-05-21 DE DE102021113293.2A patent/DE102021113293A1/en active Pending
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| JP2000008327A (en) * | 1998-06-24 | 2000-01-11 | Kawada Industries Inc | Erection constructing method for curved steel floor plate bridge |
| CN101709571A (en) * | 2009-12-03 | 2010-05-19 | 中铁宝桥集团有限公司 | Preparation method of set of datum lines of bridge steel box girder |
| CN103084806A (en) * | 2013-01-18 | 2013-05-08 | 中铁宝桥（扬州）有限公司 | Large curve steel box grider manufacture method |
| CN110373997A (en) * | 2019-04-19 | 2019-10-25 | 中铁宝桥集团有限公司 | The production method and moulding bed of curve plate girder segment |
| CN110804956A (en) * | 2019-09-26 | 2020-02-18 | 中国一冶集团有限公司 | Construction method for replacing special-shaped curve steel box girder support |
| CN111287067A (en) * | 2020-02-03 | 2020-06-16 | 广西路桥工程集团有限公司 | Manufacturing method for curved part of steel box arch unit |
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| CN111636303B (en) | 2023-05-02 |
| DE102021113293A1 (en) | 2021-11-25 |
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