CN111075077B - Petal-shaped aluminum plate curtain wall system and construction method thereof - Google Patents
Petal-shaped aluminum plate curtain wall system and construction method thereof Download PDFInfo
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- CN111075077B CN111075077B CN201911346865.2A CN201911346865A CN111075077B CN 111075077 B CN111075077 B CN 111075077B CN 201911346865 A CN201911346865 A CN 201911346865A CN 111075077 B CN111075077 B CN 111075077B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
- E04B2/96—Curtain walls comprising panels attached to the structure through mullions or transoms
- E04B2/962—Curtain walls comprising panels attached to the structure through mullions or transoms with angles or corners in the curtain wall
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2103/00—Material constitution of slabs, sheets or the like
- E04B2103/06—Material constitution of slabs, sheets or the like of metal
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Abstract
A petal-shaped aluminum plate curtain wall system and a construction method thereof comprise a building structure and a curtain wall structure; the building structure comprises a building keel, the curtain wall structure comprises a supporting keel, and a sleeve is arranged outside the supporting keel; a T-shaped supporting piece is arranged on the outer side of the sleeve and comprises a supporting circular tube and a supporting plate; the supporting circular tube is inserted in the sleeve; the aluminum plate upright post comprises two first spaces and a second space positioned between the two first spaces; the supporting plate passes through the gap of the cylinder and is positioned in the second space; a rectangular fixing plate is arranged on the outer side of the cylinder, and corner connectors are arranged on two sides of the fixing plate; the outer side of the corner brace is provided with an aluminum plate with folded edges, and the folded edges on two sides of the aluminum plate are fixed on the corner brace of the adjacent fixed plate through a third fixed bolt; the planes of the outer side surfaces of the adjacent aluminum plates are intersected, so that the whole surface formed by combining the aluminum plates is in a petal shape. The invention has smooth appearance and convenient construction, and can realize the effect of the outer facade of the building to the maximum extent.
Description
Technical Field
The invention belongs to the technical field of building curtain walls, and particularly relates to a petal-shaped aluminum plate curtain wall system and a construction method thereof.
Background
At present, the construction of a curved curtain wall of an irregular space of a petal-shaped building in the prior art generally considers the following method to realize the curved surface: namely a factory stretch bending method and a broken line fitting method.
The factory stretch bending method is characterized in that the aluminum plate unit plate and the curtain wall supporting keel system thereof are bent in a factory through special roller arc stretch bending equipment to form a hyperbolic arc shape required by a space curved curtain wall. The curved surface contour of the building has the advantages that the overall contour of the curved surface contour of the building is smooth and attractive, the defect is that the manufacturing cost is increased a lot due to the arc bending treatment of a factory, particularly for the double curved surface shape of the petal shape, the manufacturing cost is increased more, and if the curved surface meets the complicated and irregular space curved surface, the cost, the difficulty and the processing period are greatly increased. The complex and irregular curved surfaces enable each arc-shaped plate block to be manufactured with a tire mold, the mold consumption is large, and the cost is high obviously.
The broken line fitting method is that the flat aluminum plate unit plate is used for fitting the curved surface of the curtain wall, the cost is relatively low, but the curved surface effect is not ideal, the edges and corners of the curved surface curtain wall spliced by the method are clear, the curved surface fitting effect is poor, and the curved surface intention of an architect cannot be well realized. When the curve radian is larger, the splicing edges and corners are more obvious, and the exterior decoration effect is poorer.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a petal-shaped aluminum plate curtain wall system and a construction method thereof, which has a smooth appearance and is convenient for construction, and can maximize the facade effect of a building.
In order to achieve the purpose, the invention adopts the following technical scheme:
a petal-shaped aluminum plate curtain wall system comprises a building structure and a curtain wall structure;
the building structure comprises a building keel and a steel bracket fixedly connected with the building keel;
the curtain wall structure comprises a supporting keel fixed with the steel bracket, the supporting keel is curved, a plurality of circular sleeves with different extending directions are arranged on the outer side of the supporting keel, and positioning bolts are arranged on the side surfaces of the sleeves; a T-shaped supporting piece is arranged on the outer side of the sleeve and comprises a supporting circular tube and a supporting plate vertically connected with the tail end of the supporting circular tube; the supporting circular tube is inserted into the sleeve and fixed by the positioning bolt; an aluminum plate upright post is arranged on the outer side of the supporting piece, the aluminum plate upright post comprises a cylinder with a vertical gap, two ends of the gap extend towards the interior of the cylinder respectively and are provided with parallel partition plates, and the interior of the cylinder is divided into two first spaces with semicircular sections and a second space with rectangular sections and located between the two first spaces; the supporting plate penetrates through the gap and is positioned in the second space, and is fixedly connected with the two partition plates through first fixing bolts; a rectangular fixing plate is fixedly arranged on the outer side of the cylinder through a connecting plate, a plurality of vertical first long holes are formed in the two sides of the fixing plate, L-shaped corner connectors are arranged on the outer sides of the first long holes, and each corner connector comprises a first plate and a second plate which are perpendicular to each other; the first plate is provided with a transverse second long hole, and a second fixing bolt is arranged between the first long hole and the second long hole; the outer side of the corner brace is provided with an aluminum plate with folded edges, and the folded edges on the two sides of the aluminum plate are fixed on a second plate of the corner brace of the adjacent fixed plate through a third fixed bolt; the planes of the outer side surfaces of the adjacent aluminum plates are intersected, so that the whole surface formed by combining the aluminum plates is in a petal shape.
Further, aluminum plate is trapezoidal, aluminum plate is perforation aluminum plate.
Furthermore, reinforcing ribs are arranged on the back of the aluminum plate.
Further, the connecting plate and the partition plate are located on the same plane.
Furthermore, a through hole corresponding to the first fixing bolt is formed in the side face of the cylinder.
Furthermore, a buffer cushion is arranged between the partition plate and the support plate.
The construction method of the petal-shaped aluminum plate curtain wall system comprises the following steps:
A. in a factory, angle connectors are arranged on the left and right sides of the aluminum plate in a flanging manner and are fixedly connected through third fixing bolts to form aluminum plate unit plates;
B. bidirectionally bending the support keel according to the building appearance, and fixing the support keel formed by bidirectional stretch bending through a rack; fixedly connecting the aluminum plate stand column with a support plate of a support piece through a first fixing bolt, then carrying out space positioning on the aluminum plate stand column, and accurately positioning the upper end and the lower end of the aluminum plate stand column in the space through a total station; the twisting angle of the aluminum plate unit plate is matched with the curved surface contour of the petal through different placing positions and rotating angles of the aluminum plate upright post;
C. inserting a support circular tube of the support piece into the sleeve, adjusting the positions of the support piece and the sleeve, fixing a positioning bolt of the sleeve after the positions of the support piece and the sleeve are adjusted, and welding and fixing the sleeve and the support keel;
D. in a construction site, firstly, one side edge of the aluminum plate unit plate is fixed on a fixing plate of one aluminum plate upright post through a second fixing bolt, then the upper end or the lower end of the other side edge of the aluminum plate unit plate is fixed on a fixing plate of an adjacent aluminum plate upright post through the second fixing bolt, then the buckling point of the aluminum plate unit plate is attached to the fixing plate of the aluminum plate upright post through external force, and the aluminum plate unit plate is fastened and locked through the second fixing bolt; fixing a plurality of aluminum plate unit plates on the support keel in such a way to form a large unit curved surface plate;
E. the large-unit curved surface plate is lifted and installed through lifting equipment, the whole installation process is accurately positioned through a total station, after the large-unit curved surface plate is lifted in place, a steel corbel for supporting the keel and the building keel are welded and fixed, and a plurality of adjacent large-unit curved surface plates are sequentially fixed in this way.
Furthermore, a nylon gasket is arranged between the corner connector and the aluminum plate stand column.
The invention has the beneficial effects that: the invention aims to provide a petal-shaped aluminum plate curtain wall system and a construction method thereof, which have smooth appearance and convenient construction, can realize the effect of the outer vertical surface of a building to the maximum extent, and form double curves by adopting the fitting of a plane aluminum plate (through cold bending on site).
Drawings
FIG. 1 is a perspective view of a petal-shaped aluminum plate curtain wall system of the present invention.
FIG. 2 is a schematic cross-sectional view of a petal-shaped aluminum plate curtain wall system of the present invention.
Fig. 3 is an enlarged schematic view at E in fig. 2.
FIG. 4 is a schematic view of the position adjustment of the supporting keel of the petal-shaped aluminum plate curtain wall system.
FIG. 5 is a schematic view of the position adjustment at the first elongated hole of the petal-shaped aluminum plate curtain wall system of the present invention.
FIG. 6 is a schematic view of the position adjustment at the second elongated hole of the petal-shaped aluminum plate curtain wall system of the present invention.
FIG. 7 is a schematic diagram of the petal-shaped aluminum plate curtain wall system of the present invention.
Detailed Description
The technical solutions of the present invention will be apparent from the detailed description of specific embodiments of the present invention given below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the present invention provides a petal-shaped aluminum curtain wall system, which includes a building structure 1 and a curtain wall structure 2.
The building structure 1 comprises a building keel 11 and a steel corbel 12 fixedly connected with the building keel 11.
The curtain wall structure 2 comprises a supporting keel 13 fixed with the steel corbel 12, the supporting keel 13 is of a curve shape, a plurality of circular sleeves 14 with different extending directions are arranged on the outer side of the supporting keel 13, and positioning bolts 15 are arranged on the side faces of the sleeves 14. The support member 3 is provided with a T-shape on the outside of the sleeve 14, and the support member 3 includes a support tube 31 and a support plate 32 vertically connected to the end of the support tube 31. The supporting circular tube 31 is inserted into the sleeve 14 and fixed by the positioning bolt 15. An aluminum plate upright post 21 is arranged on the outer side of the supporting piece 3, the aluminum plate upright post 21 comprises a cylinder 22 with a vertical gap, two ends of the gap extend towards the inside of the cylinder 22 respectively to form parallel partition plates 23, and the inside of the cylinder 22 is divided into two first spaces 221 with semicircular sections and a second space 222 with rectangular sections and located between the two first spaces 221. The support plate 32 is located in the second space 222 through the gap, and is fixedly connected with the two partition plates 23 through the first fixing bolts 24. For the convenience of installation, the cylinder 22 is provided at a side thereof with a through hole 223 corresponding to the first fixing bolt 24. A rectangular fixing plate 26 is fixedly arranged on the outer side of the cylinder 22 through a connecting plate 25, and the connecting plate 25 and the partition plate 23 are positioned on the same plane. A plurality of vertical first long holes 261 are formed in two sides of the fixing plate 26, L-shaped corner connectors 27 are arranged on the outer sides of the first long holes 261, and the corner connectors 27 comprise a first plate and a second plate which are perpendicular to each other. The first plate is provided with a transverse second elongated hole 271, and a second fixing bolt 28 is provided between the first elongated hole and the second elongated hole. The aluminum plate 4 with folded edges is arranged outside the corner brace 27, and the folded edges on two sides of the aluminum plate 4 are fixed on the second plate of the corner brace 27 of the adjacent fixing plate 26 through third fixing bolts 41. The planes of the outer side surfaces of the adjacent aluminum plates 4 are intersected, so that the whole surface formed by combining the aluminum plates 4 is in a petal shape.
Specifically, the aluminum plate 4 is a trapezoidal shape, and may be a common aluminum plate or a perforated aluminum plate, or an aluminum plate for an outer wall such as a perforated rate plate, an aluminum composite plate, a honeycomb aluminum plate, a copper plate, or a stainless steel plate. The back of the aluminum plate 4 is provided with a reinforcing rib, and when the aluminum plate 4 is a perforated aluminum plate, the reinforcing rib is also perforated.
The invention also provides a construction method of the petal-shaped aluminum plate curtain wall system, which comprises the following steps:
A. firstly, scientifically and reasonably dividing a building outline skin with a petal shape into a section of curved surface supporting keel 6-8 meters long according to the actual span of the supporting keel 13, and then converting a large unit curved surface plate divided by an aluminum plate 4 on the supporting keel 13 into a small aluminum plate unit plate;
in a factory, angle connectors 27 are arranged on the left side and the right side of the aluminum plate 4 in a flanging mode and are fixedly connected through third fixing bolts 41 to form aluminum plate unit plates;
B. bidirectionally bending the support keel 13 according to the building appearance, and fixing the support keel 13 formed by bidirectional stretch bending through a rack; fixedly connecting the aluminum plate upright post 21 with the support plate 32 of the support member 3 through a first fixing bolt 24, then performing spatial positioning on the aluminum plate upright post 21, and accurately positioning the upper end and the lower end of the aluminum plate upright post 21 in the space through a total station; the twisting angle of the aluminum plate unit plate is matched with the curved surface contour of the petal through different placing positions and rotating angles of the aluminum plate upright posts 21;
C. inserting a support circular tube 31 of the support member 3 into the sleeve 14, adjusting the positions of the support member 3 and the sleeve 14, fixing a positioning bolt 15 of the sleeve 14 after the positions are adjusted, and welding and fixing the sleeve 14 and the support keel 13;
D. in a construction site, firstly, one side edge of the aluminum plate unit plate is fixed on a fixing plate 26 of one aluminum plate upright post 21 through a second fixing bolt 28, then the upper end or the lower end of the other side edge of the aluminum plate unit plate is fixed on the fixing plate 26 of the adjacent aluminum plate upright post 21 through the second fixing bolt 28, then the buckling point of the aluminum plate unit plate is attached to the fixing plate 26 of the aluminum plate upright post 21 through external force, and the aluminum plate unit plate is fastened and locked through the second fixing bolt 28; fixing a plurality of aluminum plate unit plates on the support keel 13 in this way to form a large unit curved surface plate;
E. the large-unit curved surface plate is lifted and installed through lifting equipment, the whole installation process is accurately positioned through a total station, after the large-unit curved surface plate is lifted in place, the steel corbel 12 of the supporting keel 13 and the building keel 11 are welded and fixed, and a plurality of adjacent large-unit curved surface plates are sequentially fixed in this way.
Further, a nylon gasket is arranged between the corner brace 27 and the aluminum plate upright post 21, and a cushion pad is arranged between the partition plate 23 and the supporting plate 32.
As shown in fig. 7, which is a schematic view of the principles of the present invention, generally planar tiles A, B, C, D are coplanar at four points; the cold-formed panels are coplanar at three points, one of which is offset from the other coplanar three points, as shown in the right hand drawing, and point a is coplanar with the other three points B, C, D. During actual construction, the point A is shifted to the point a1 by a certain external force, so that the hyperboloid effect is achieved. In order to prevent the aluminum plate unit plate from being pulled apart or generating larger stress due to overlarge twisting deformation in the twisting process, and failure after installation is caused, the maximum twisting distance of the plate is determined by rhinoceros three-dimensional paying-off, the worst plate is selected, a model is established by using finite element software ansys for analysis, the stress generated by twisting the aluminum plate and the curtain wall component and the stress generated by adding an external load are determined, and a basis is provided for determining the wall thickness of the curtain wall component. The calculation is carried out to confirm that the internal stress generated by warping of the aluminum plate surface and the curtain wall component and the stress generated by external load are still within a safe allowable range, so that the safety of the hyperboloid curtain wall structure is ensured. The length of side of the plate of the aluminum plate unit is in direct proportion to the amount of warp of cold bending under the general condition, when the length of side is less than 1 m, the warp distance is not more than 200mm, the twist distance is too large, and for reducing the twist distance, the construction is convenient, the size of the plate block can be properly increased or the plate block can be formed by roll bending in a factory.
In order to adapt to the change of petal form major structure outline angle, every aluminum plate unit plate is a little curved surface, four angular points of same piece unit are not in the coplanar, with aluminum plate unit plate, need twist it, if the aluminum plate unit plate of design is too big, then the deflection that needs twist is just bigger, like this, in order to obtain the suitable deflection that twist and not break failure, and the internal stress that produces and the used material of unit plate and plate size suited, need carry out such design to the aluminum plate: and determining the worst aluminum plate unit plate by cad three-dimensional lofting, establishing a finite element model of the aluminum plate unit plate, and calculating to confirm that the internal stress generated by twisting of the aluminum plate profile and the stress generated by external load are still within a safe allowable range. And adopting cad three-dimensional lofting to simulate the connection between the flat plate aluminum plate unit plate and the upright post and the adapter system and the splicing of the adjacent aluminum plate unit plates, so that the adjacent aluminum plate unit plates are spliced through cold bending and the upright post is accurately installed. And (4) obtaining the stress and deflection of the aluminum plate unit plate, the aluminum plate upright post and the aluminum frame through finite element calculation, and judging the safety of the curtain wall system under the action of twisting deformation and external load. The number and the interval of the round nail hole hanging points arranged on the corner connectors are equal to those of the round nail hole hanging points arranged on the aluminum alloy upright posts, the bolt hanging points are arranged on the aluminum alloy upright posts and used for connecting the hanging points with the aluminum plate unit plates, and the interval between the hanging points is determined according to calculation. The calculation mainly considers the weight of the aluminum plate unit plate, the external load and the bearing capacity of the connecting bolt, and simultaneously takes account of the deformation of twisting the aluminum plate unit plate into the curved plate during installation. In order to prevent the stress generated by twisting deformation during installation of each nail hole from being too large, the number of the nail holes is correspondingly increased, and the distance between the nail holes is reduced.
The invention only manufactures the flat aluminum plate unit plate in the manufacturing of the aluminum plate unit plate, thereby avoiding the complex process of manufacturing the curved panel unit plate, and the cold twisting in the installation also leads the flat aluminum plate unit plate to be formed into the curved unit plate in the structural system, thereby overcoming the defects of clear edge angle and unsatisfactory curved surface effect caused by forming a curved curtain wall by fitting the flat aluminum plate unit plate in the prior art. The method provides a method and a structural guarantee for fully showing the curved surface intention of the hyperboloid unit type building curtain wall of an architect, shortens the construction period and has good economy.
Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention.
Claims (2)
1. The construction method of the petal-shaped aluminum plate curtain wall system is characterized in that the petal-shaped aluminum plate curtain wall system comprises a building structure and a curtain wall structure;
the building structure comprises a building keel and a steel bracket fixedly connected with the building keel;
the curtain wall structure comprises a supporting keel fixed with the steel bracket, the supporting keel is curved, a plurality of circular sleeves with different extending directions are arranged on the outer side of the supporting keel, and positioning bolts are arranged on the side surfaces of the sleeves; a T-shaped supporting piece is arranged on the outer side of the sleeve and comprises a supporting circular tube and a supporting plate vertically connected with the tail end of the supporting circular tube; the supporting circular tube is inserted into the sleeve and fixed by the positioning bolt; an aluminum plate upright post is arranged on the outer side of the supporting piece, the aluminum plate upright post comprises a cylinder with a vertical gap, two ends of the gap extend towards the interior of the cylinder respectively and are provided with parallel partition plates, and the interior of the cylinder is divided into two first spaces with semicircular sections and a second space with rectangular sections and located between the two first spaces; the supporting plate penetrates through the gap and is positioned in the second space, and is fixedly connected with the two partition plates through first fixing bolts; a rectangular fixing plate is fixedly arranged on the outer side of the cylinder through a connecting plate, a plurality of vertical first long holes are formed in the two sides of the fixing plate, L-shaped corner connectors are arranged on the outer sides of the first long holes, and each corner connector comprises a first plate and a second plate which are perpendicular to each other; the first plate is provided with a transverse second long hole, and a second fixing bolt is arranged between the first long hole and the second long hole; the outer side of the corner brace is provided with an aluminum plate with folded edges, and the folded edges on the two sides of the aluminum plate are fixed on a second plate of the corner brace of the adjacent fixed plate through a third fixed bolt; the planes of the outer side surfaces of the adjacent aluminum plates are intersected, so that the whole surface formed by combining the aluminum plates is in a petal shape; the construction method comprises the following steps:
A. in a factory, angle connectors are arranged on the left and right sides of the aluminum plate in a flanging manner and are fixedly connected through third fixing bolts to form aluminum plate unit plates;
B. bidirectionally bending the support keel according to the building appearance, and fixing the support keel formed by bidirectional stretch bending through a rack; fixedly connecting the aluminum plate stand column with a support plate of a support piece through a first fixing bolt, then carrying out space positioning on the aluminum plate stand column, and accurately positioning the upper end and the lower end of the aluminum plate stand column in the space through a total station; the twisting angle of the aluminum plate unit plate is matched with the curved surface contour of the petal through different placing positions and rotating angles of the aluminum plate upright post;
C. inserting a support circular tube of the support piece into the sleeve, adjusting the positions of the support piece and the sleeve, fixing a positioning bolt of the sleeve after the positions of the support piece and the sleeve are adjusted, and welding and fixing the sleeve and the support keel;
D. in a construction site, firstly, one side edge of the aluminum plate unit plate is fixed on a fixing plate of one aluminum plate upright post through a second fixing bolt, then the upper end or the lower end of the other side edge of the aluminum plate unit plate is fixed on a fixing plate of an adjacent aluminum plate upright post through the second fixing bolt, then the buckling point of the aluminum plate unit plate is attached to the fixing plate of the aluminum plate upright post through external force, and the aluminum plate unit plate is fastened and locked through the second fixing bolt; fixing a plurality of aluminum plate unit plates on the support keel in such a way to form a large unit curved surface plate;
E. the large-unit curved surface plate is lifted and installed through lifting equipment, the whole installation process is accurately positioned through a total station, after the large-unit curved surface plate is lifted in place, a steel corbel for supporting the keel and the building keel are welded and fixed, and a plurality of adjacent large-unit curved surface plates are sequentially fixed in this way.
2. The construction method of the petal-shaped aluminum plate curtain wall system according to claim 1, wherein a nylon gasket is arranged between the corner brace and the aluminum plate upright post.
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| CN201911346865.2A CN111075077B (en) | 2019-12-24 | 2019-12-24 | Petal-shaped aluminum plate curtain wall system and construction method thereof |
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| CN201911346865.2A CN111075077B (en) | 2019-12-24 | 2019-12-24 | Petal-shaped aluminum plate curtain wall system and construction method thereof |
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| CN111075077B true CN111075077B (en) | 2021-07-13 |
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| CN111910802B (en) * | 2020-06-28 | 2021-12-07 | 上海市建筑装饰工程集团有限公司 | Connecting device of complicated special-shaped curtain wall structure |
| CN111910803B (en) * | 2020-06-28 | 2022-03-15 | 上海市建筑装饰工程集团有限公司 | Complicated special-shaped curtain wall structure |
| CN112211332A (en) * | 2020-09-03 | 2021-01-12 | 南京晨光艺术工程有限公司 | Method for assembling special-shaped metal wall plate |
| CN113931314B (en) * | 2021-09-17 | 2023-03-24 | 中国航空规划设计研究总院有限公司 | Petal-shaped body decorative structure capable of releasing temperature stress and building |
| CN114232997B (en) * | 2021-12-07 | 2022-09-02 | 北京城建六建设集团有限公司 | Construction method of arc-shaped aluminum plate curtain wall with staggered and laminated folding lines for arc-shaped stage exterior wall decoration |
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