CN114319659B - Large-span double-upright-column unitized curtain wall system - Google Patents

Large-span double-upright-column unitized curtain wall system Download PDF

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Publication number
CN114319659B
CN114319659B CN202111570897.8A CN202111570897A CN114319659B CN 114319659 B CN114319659 B CN 114319659B CN 202111570897 A CN202111570897 A CN 202111570897A CN 114319659 B CN114319659 B CN 114319659B
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curtain wall
upright post
interlayer
column
span
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CN114319659A (en
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辛立强
郑胜林
王斌
潘秀娟
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Shanghai Jiangchuang Curtain Wall Manufacturing Co ltd
Beijing Jangho Curtain Wall System Engineering Co Ltd
Shanghai Jangho Curtain Wall System Engineering Co Ltd
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Shanghai Jiangchuang Curtain Wall Manufacturing Co ltd
Beijing Jangho Curtain Wall System Engineering Co Ltd
Shanghai Jangho Curtain Wall System Engineering Co Ltd
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Abstract

The invention provides a large-span double-upright-column unit curtain wall system which consists of a plurality of large-span double-upright-column curtain wall units. The large-span double-upright curtain wall unit body consists of left and right through high and small section upright posts, a top beam, a middle beam, a bottom beam, left and right interlayer short upright posts, interlayer glass and visible glass; the left and right interlayer short upright posts and the left and right through high and small section upright posts form a double-upright-post structure. The invention designs the large-span curtain wall unit body into a double-column structure, loads wind load borne by curtain wall glass through the top beam, the middle beam and the interlayer short column connected with the building main body, and transfers the loaded wind load to the building main body structure, so that the through-height small-section column only bears the gravity of the curtain wall unit body and does not bear the wind load borne by the curtain wall unit body.

Description

Large-span double-upright-column unitized curtain wall system
Technical Field
The invention relates to a unitized curtain wall system, in particular to a large-span double-upright unitized curtain wall system. The invention belongs to a building glass curtain wall system.
Background
At present, more and more office buildings, shopping malls, hotels and other outer facades are decorated into glass curtain walls, wherein most of the outer facades are unit glass curtain wall systems, namely, a curtain wall unit body is processed in a factory in advance, then the curtain wall unit body is transported to a construction site, and the curtain wall unit body is connected with a building main body through a connecting piece to form the unit glass curtain wall system. The unit glass curtain wall system has the advantages that: the site construction amount is small, the installation is convenient and fast, and the construction period is short; the defects are that: for a large-span unitized curtain wall system, in order to enable individual unitized curtain wall bodies to meet the stress requirement, the upright posts of the unitized curtain wall bodies are thicker, the depth of the upright posts is larger, and the unitized curtain wall system occupies a larger indoor use area and is opposite to the indoor transparent appearance effect pursued by architects.
Fig. 1 is a schematic view of a conventional large-span curtain wall unit body, and as shown in the drawing, the conventional large-span curtain wall unit body is formed by a frame composed of left and right uprights 1, a top beam 2, a middle beam 3 and a bottom beam 4, and glass 5 is installed in the frame. The width of the conventional large-span curtain wall unit body is 1.2-2.5 m, and the height is 3.5-4.5 m, namely the size of the largest conventional large-span curtain wall unit body is 2.5 m wide and 4.5 m high. If the large-span unitized curtain wall system with the maximum size is installed in a typhoon-free area or an environment with the conventional wind pressure below 3.0Kpa, the depths of the left upright column and the right upright column forming the unitized curtain wall reach 240mm, so that the requirement of stress can be met under the condition of economy and applicability; if the large-span unitized curtain wall system is installed in coastal areas or in the environments with the conventional wind pressure below 5.84Kpa or in areas with higher wind pressure, according to the calculation of the stress system of the conventional large-span unitized curtain wall, in order to enable the unitized curtain wall to meet the stress requirement, the depth W of the left upright column 1 and the right upright column 1 forming the unitized curtain wall as shown in fig. 2 needs to be 350mm-450mm.
That is, if the partition width of the curtain wall unit body is increased in order to meet the aesthetic requirement of architects for a large span, the depth of the left and right upright posts which form the curtain wall unit body is increased in order to ensure safety and ensure that the curtain wall unit body can meet the stress requirement; the larger the depth of the upright post is, the larger indoor use area is occupied, and the effect of indoor permeability appearance pursued by architects is opposite to that pursued.
Disclosure of Invention
In view of the foregoing, it is an object of the present invention to provide a large span double column unitized curtain wall system. The large-span double-upright column unit body forming the unit body curtain wall system can meet the aesthetic effect of the appearance pursued by architects, the indoor occupied area is small, the structural stress requirement of the curtain wall unit body can be met, and the safety of the unit body curtain wall system is ensured.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a large-span double-upright-column unit curtain wall system consists of a plurality of large-span double-upright-column curtain wall units;
the large-span double-upright curtain wall unit body consists of left and right through high and small section upright posts, a top beam, a middle beam, a bottom beam, left and right interlayer short upright posts, interlayer glass and visible glass; the left interlayer short upright post and the right interlayer short upright post and the left through high and small section upright post form a double-upright post structure;
the left and right through high and small section upright posts, the top cross beam and the bottom cross beam enclose a large-span curtain wall unit body frame; the middle cross beam is positioned between the top cross beam and the bottom cross beam, and two ends of the middle cross beam are respectively connected with the left through high-small section upright post and the right through high-small section upright post to divide the large-span curtain wall unit body frame into an interlayer region and a visible region; the interlayer region corresponds to the interlayer region of the building body, and the visible region corresponds to the indoor visible region of the building body;
the left interlayer short upright post and the right interlayer short upright post are respectively fixed on the back surfaces of the left through high small section upright post and the right through high small section upright post corresponding to the interlayer region, and the two ends of the left interlayer short upright post and the right interlayer short upright post are respectively connected with the top cross beam and the middle cross beam;
the interlayer glass is fixed between the top beam and the middle beam; the visual glass is fixed between the middle cross beam and the bottom cross beam in a top and bottom fixing mode;
the left interlayer short upright post and the right interlayer short upright post are connected with the main body structure of the building through an upper connecting piece and a lower connecting piece.
In the preferred embodiment of the invention, the cross section area of the left and right interlayer short upright posts is 3650mm 2 --3800mm 2 The depth of the upright post is 150mm-160mm; the cross section area of the left and right through high and small section upright posts is 3410mm 2 -3710mm 2 The depth of the upright post is 150mm-170mm.
In the preferred embodiment of the invention, the minimum sectional area of the left and right through high and small section upright posts is 3410mm 2 The minimum column depth is 150mm.
The invention designs the large-span curtain wall unit body into a double-column structure, loads wind load borne by curtain wall glass through the top beam, the middle beam and the interlayer short column connected with the building main body, and transfers the borne wind load to the building main body structure, so that the through-height small-section column only bears the gravity of the curtain wall unit body and does not bear the wind load borne by the curtain wall unit body.
Drawings
FIG. 1 is a schematic diagram of a conventional large-span curtain wall unit structure;
FIG. 2 is a partial top view of FIG. 1;
FIG. 3 is a schematic diagram of a large-span double-upright curtain wall unit structure according to the invention;
FIG. 4 is a side view of A-A of FIG. 3;
FIG. 5 is a schematic diagram of the stress of the large span double upright curtain wall unit of the present invention;
FIG. 6 is a plan view of a multi-span tie beam unitized curtain wall system formed upon installation of the present invention;
FIG. 7A is a bending moment diagram of a computer simulated large-span double-upright unitized curtain wall system of the present invention;
FIG. 7B is a diagram showing a computer simulation of the shear force distribution of a large-span double-upright unitized curtain wall system of the present invention;
FIG. 8 is a partial top view of a small section vertical column of the present invention.
Detailed Description
The structure and features of the present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that various modifications can be made to the embodiments disclosed herein, and thus, the embodiments disclosed in the specification should not be taken as limiting the invention, but merely as exemplifications of embodiments, which are intended to make the features of the invention apparent.
For a building main body, a certain space exists between a concrete beam/floor slab of a lower room and a floor slab of an upper room, namely an interlayer area is short for the time, and the interlayer area is invisible in the upper room or the lower room, so that the invention fully utilizes the interlayer area, designs an independent supporting system for a large-span glass curtain wall unit body, and concentrates wind load born by a whole large-span unit body plate in the interlayer area through a reasonable force transmission path, so that a stand column of a visible area in the curtain wall unit body does not bear wind load, thereby reducing the depth of the stand column of the curtain wall unit body, the cross section size of the stand column, reducing the indoor area occupied by the stand column, and leading the appearance of the unit body curtain wall system to be more attractive.
As shown in fig. 3 and 4, the large-span double-column curtain wall unit body of the invention is composed of left and right through high small section columns 6, a top beam 7, a middle beam 8, a bottom beam 9, left and right interlayer short columns 10, interlayer glass 11 and visible glass 12; the left and right through high and small section upright posts 6, the top cross beam 7 and the bottom cross beam 9 enclose a large-span curtain wall unit body frame, the middle cross beam 8 is positioned between the top cross beam 7 and the bottom cross beam 9, and two ends of the middle cross beam are respectively connected with the left and right through high and small section upright posts 6 to divide the large-span curtain wall unit body frame into an interlayer region and a visible region. The interlayer region corresponds to the interlayer region of the building body; the viewable area corresponds to a viewable area within the building body.
The back surfaces of the left and right through high and small section upright posts 6 corresponding to the interlayer region of the large-span curtain wall unit body frame are respectively fixed with left and right interlayer short upright posts 10, and two ends of the left and right interlayer short upright posts 10 are respectively connected with the top cross beam 7 and the middle cross beam 8.
The interlayer glass 11 is fixed between the top beam 7 and the middle beam 8 in a traditional fixing mode, namely, four sides of the glass are adhered to the transverse and vertical frames by structural adhesive or in a buckle cover mode. The visual glass 12 is fixed at the top and the bottom, namely the upper and the lower edges of the glass are connected with the middle cross beam 8 and the bottom cross beam 9 in a buckling manner, and are fixed between the middle cross beam 8 and the bottom cross beam 9.
The assembled large-span double-upright curtain wall unit body is connected with the main structure of the building through an upper connecting piece 13 and a lower connecting piece 14 which are connected with the left interlayer short upright 10 and the right interlayer short upright 10.
FIG. 5 is a schematic diagram of the stress of the large span double upright curtain wall unit of the present invention. As shown in the figure, the invention forms a double-column structure through the left and right interlayer short columns 10 and the left and right through high and small section columns 6, so that the stress system of the invention is essentially changed from that of the traditional large-span curtain wall unit body.
The wind load transmission path of the present invention will be described below by taking the engineering in which the present invention has been implemented as an example. The width of the large-span double-upright-column curtain wall unit body is 5 meters, the height of the large-span double-upright-column curtain wall unit body is 4.5 meters, the height of an interlayer region of the large-span double-upright-column curtain wall unit body is 1.25 meters, the height of a visible region of the large-span double-upright-column curtain wall unit body is 3.25 meters, and the borne wind load is 5.85Kpa.
In general, when wind blows toward the interlayer glass 11 and the visible glass 12, load is generated, and the glass transmits force to the cross beam and the upright of the unit body through its own rigidity, and then to the main structure of the building through the connection member. As shown in fig. 5, assuming that the wind load to which the interlayer glass 11 is subjected is 2FW2, the interlayer glass 11 transmits the wind load to which it is subjected, a part FW2 to the top cross member 7, and a part FW2 to the middle cross member 8; the visible glass 12 transmits the wind load 2FW1 to which it is subjected, a part FW1 to the middle cross member 8, and a part FW1 to the bottom cross member 9. As shown in fig. 6, when a plurality of curtain wall units, namely, a curtain wall unit i, a curtain wall unit ii, a curtain wall unit iii and a curtain wall unit iv, are connected with a building main structure 15 through an upper connecting piece 13 and a lower connecting piece 14 to form a multi-span continuous Liang Muqiang system, after installation is completed, a bottom beam 9 of the upper curtain wall unit is spliced with a top beam 7 of the lower curtain wall unit, wind load borne by the bottom beam 9 is transferred to the top beam 7, and wind load borne by the whole unit glass 11 and 12 is transferred to the building main structure 15 through an independent support system consisting of the top beam 7, a middle beam 8 and left and right interlayer short columns 10 through the upper connecting piece 13 and the lower connecting piece 14.
In contrast, the through-height small-section upright post 6 is formed, because no buckle closure connection and structural adhesive bonding are arranged between the visible glass 12 with the largest area and the through-height small-section upright post 6, only the sealant is filled, and the watertight performance is ensured, so that the through-height small-section upright post 6 does not participate in wind load stress, and further proved by a bending moment diagram (see fig. 7A) and a shearing diagram (see fig. 7B) born by the top beam 7, the middle beam 8 and the bottom beam 9 of the invention analyzed by SAP2000 software, the wind load born by the through-height small-section upright post is 0, and the through-height small-section upright post only plays a role in bearing the dead weight of a curtain wall unit plate. Because the vertical column with the through-height and the small section does not bear wind load and only bears the self weight of the unit body plate of the curtain wall, namely the vertical column with the through-height and the small section is axially pulled, the sectional area of the vertical column 6 with the left through-height and the right through-height and the small section is 3410mm 2 -3710mm 2 The depth of the upright post is 150mm-170 mm; the cross-sectional area of the left and right interlayer short column 10 is 3650mm 2 --3800mm 2 The depth of the upright post is 150mm-160 mm. In the preferred embodiment of the invention, the minimum sectional area of the left and right through high small section upright posts is 3410mm 2 The minimum column depth is 150mm as shown in fig. 8.
Finally, it should be noted that: the embodiments described above are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (3)

1. The utility model provides a large-span double-column unit curtain wall system, it comprises a plurality of large-span double-column curtain wall unit, its characterized in that:
the large-span double-upright curtain wall unit body consists of left and right through high and small section upright posts, a top beam, a middle beam, a bottom beam, left and right interlayer short upright posts, interlayer glass and visible glass; the left interlayer short upright post and the right interlayer short upright post and the left through high and small section upright post form a double-upright post structure;
the left and right through high and small section upright posts, the top cross beam and the bottom cross beam enclose a large-span curtain wall unit body frame; the middle cross beam is positioned between the top cross beam and the bottom cross beam, and two ends of the middle cross beam are respectively connected with the left through high-small section upright post and the right through high-small section upright post to divide the large-span curtain wall unit body frame into an interlayer region and a visible region; the interlayer region corresponds to the interlayer region of the building body, and the visible region corresponds to the indoor visible region of the building body;
the left interlayer short upright post and the right interlayer short upright post are respectively fixed on the back surfaces of the left through high small section upright post and the right through high small section upright post corresponding to the interlayer region, and the two ends of the left interlayer short upright post and the right interlayer short upright post are respectively connected with the top cross beam and the middle cross beam;
the interlayer glass is fixed between the top beam and the middle beam; the visual glass is fixed between the middle cross beam and the bottom cross beam in a top and bottom fixing mode;
the left interlayer short upright post and the right interlayer short upright post are connected with the main body structure of the building through an upper connecting piece and a lower connecting piece.
2. The large span double column unitized curtain wall system of claim 1, wherein: the cross section of the short upright post between the left layer and the right layer is 3650mm 2 --3800mm 2 The depth of the upright post is 150mm-160mm;
the cross section area of the left and right through high and small section upright posts is 3410mm 2 -3710 mm 2 The depth of the upright post is 150mm-170mm.
3. The large span double column unitized curtain wall system of claim 2, wherein: the minimum sectional area of the left and right through high and small section upright posts is 3410mm 2 The minimum column depth is 150mm.
CN202111570897.8A 2021-12-21 2021-12-21 Large-span double-upright-column unitized curtain wall system Active CN114319659B (en)

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19600944A1 (en) * 1996-01-12 1997-07-17 Gartner & Co J Facade construction for weather facing cladding
JP2005113513A (en) * 2003-10-08 2005-04-28 Ykk Ap株式会社 Curtain wall
CN101343900A (en) * 2008-08-26 2009-01-14 北京江河幕墙股份有限公司 Large-span non-upright post curtain wall system
WO2013040955A1 (en) * 2011-09-20 2013-03-28 饶淳 Primary and secondary full curtain wall structure and architecture
CN203716368U (en) * 2014-03-06 2014-07-16 上海港普泰建筑设计咨询有限公司 Double glass curtain wall
CN206289813U (en) * 2016-12-06 2017-06-30 成都江河幕墙系统工程有限公司 A kind of big lattice type unitized curtain wall with central post
CN207110150U (en) * 2017-08-21 2018-03-16 深圳广田集团股份有限公司 A kind of rib glass formula junior unit glass curtain wall
CN209145096U (en) * 2018-10-24 2019-07-23 北京江河幕墙系统工程有限公司 Spatial offset formula isomerization unit body curtain wall
CN111945937A (en) * 2020-07-06 2020-11-17 上海金冠幕墙科技有限公司 Special-shaped space dislocation and distortion type curtain wall unit body
CN212317254U (en) * 2020-04-23 2021-01-08 中衡设计集团股份有限公司 Large-span curtain wall system
CN212336460U (en) * 2020-03-20 2021-01-12 广州江河幕墙系统工程有限公司 Structure for reducing vertical deflection of keel bottom beam of curtain wall with oversized unit plates
CN112282382A (en) * 2020-10-29 2021-01-29 北京城建六建设集团有限公司 Multi-curved-surface special-shaped film mounting structure and mounting method
CN114045964A (en) * 2021-11-09 2022-02-15 广州江河幕墙系统工程有限公司 Large-span broken line cell cube curtain system
CN217232341U (en) * 2022-03-08 2022-08-19 上海力进铝质工程有限公司 Glass curtain wall with ultrahigh glass panel and no upright post

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19600944A1 (en) * 1996-01-12 1997-07-17 Gartner & Co J Facade construction for weather facing cladding
JP2005113513A (en) * 2003-10-08 2005-04-28 Ykk Ap株式会社 Curtain wall
CN101343900A (en) * 2008-08-26 2009-01-14 北京江河幕墙股份有限公司 Large-span non-upright post curtain wall system
WO2013040955A1 (en) * 2011-09-20 2013-03-28 饶淳 Primary and secondary full curtain wall structure and architecture
CN203716368U (en) * 2014-03-06 2014-07-16 上海港普泰建筑设计咨询有限公司 Double glass curtain wall
CN206289813U (en) * 2016-12-06 2017-06-30 成都江河幕墙系统工程有限公司 A kind of big lattice type unitized curtain wall with central post
CN207110150U (en) * 2017-08-21 2018-03-16 深圳广田集团股份有限公司 A kind of rib glass formula junior unit glass curtain wall
CN209145096U (en) * 2018-10-24 2019-07-23 北京江河幕墙系统工程有限公司 Spatial offset formula isomerization unit body curtain wall
CN212336460U (en) * 2020-03-20 2021-01-12 广州江河幕墙系统工程有限公司 Structure for reducing vertical deflection of keel bottom beam of curtain wall with oversized unit plates
CN212317254U (en) * 2020-04-23 2021-01-08 中衡设计集团股份有限公司 Large-span curtain wall system
CN111945937A (en) * 2020-07-06 2020-11-17 上海金冠幕墙科技有限公司 Special-shaped space dislocation and distortion type curtain wall unit body
CN112282382A (en) * 2020-10-29 2021-01-29 北京城建六建设集团有限公司 Multi-curved-surface special-shaped film mounting structure and mounting method
CN114045964A (en) * 2021-11-09 2022-02-15 广州江河幕墙系统工程有限公司 Large-span broken line cell cube curtain system
CN217232341U (en) * 2022-03-08 2022-08-19 上海力进铝质工程有限公司 Glass curtain wall with ultrahigh glass panel and no upright post

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
浅谈三支点连续梁在幕墙设计中的运用;汪小琴;;科技创新与应用(18);全文 *

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