CN105298144A - Interlayer fireproof partition construction method for high-rise glass curtain wall - Google Patents
Interlayer fireproof partition construction method for high-rise glass curtain wall Download PDFInfo
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- CN105298144A CN105298144A CN201510726629.9A CN201510726629A CN105298144A CN 105298144 A CN105298144 A CN 105298144A CN 201510726629 A CN201510726629 A CN 201510726629A CN 105298144 A CN105298144 A CN 105298144A
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Abstract
The invention discloses an interlayer fireproof partition construction method for a high-rise glass curtain wall. Huangjin plates are adopted as fireproof plates. The construction method includes the steps of conducting base layer cleaning on an interlayer base body, conducting measurement pay-off, outputting and numbering machining parameters of the fireproof plates, machining the fireproof plates, installing the fireproof plates, and beautifying caulked joints between the fireproof plates. The fireproof plates are manufactured through the Huangjin plate materials special in fireproof and sound insulating effect and the special machining process, the fireproof plates are connected with a building base body through adjustable corner braces to form an independent closed partition, and the defects that in the prior art, the fireproof plates are connected to an aluminum alloy keel of the high-rise glass curtain wall, the whole aluminum alloy keel deforms and collapses when placed at a high temperature for a long time, and the fireproof partition loses efficacy are overcome. The installation process is convenient and reliable; the fireproof plates are produced in a concentrated mode, and consumable items are saved. Compared with a glass curtain wall fireproof partition construction method in the prior art, obvious disadvantages on the aspects of construction periods, quality, safety, manufacturing cost, environment protection and the like.
Description
Technical field
The present invention relates to a kind of high-rise glass curtain wall interlayer fireproof partition construction method.
Background technology
In recent years along with the increase of world population, the problem of house anxiety is more and more serious, and highrise building arises at the historic moment, and architect is from emphasizing that artistic effect turns to the technical functionality paying attention to building in the past.Curtain wall, because of its perfect curve and the shadow combining form brought thereof, gives modern times, dynamic aesthetic feeling, is widely used in the alien invasion decoration of highrise building.Current curtain wall many employings aluminium alloys and steel work are as its supporting keel, interlayer fire prevention constructure scheme many employings adopt at interlayer partition place the hot-dip galvanizing sheet steel that 1.5mm is thick to add 100mm thick fire prevention rock wool and are fixed on and aluminum alloy cross beam or support keel carry out fire prevention process, be there is following drawback in this technology: 1, hot-dip galvanizing sheet steel and fire prevention rock wool need to cut at the scene, fill, construction is complicated and precision is wayward, height by workman's construction level affects greatly, cannot eliminate error existing in construction; 2, hot-dip galvanizing sheet steel self fireproof performance is not outstanding, fireproof partition connecting structure is unreasonable, and in face of serious fire, resistivity is limited; 3, need to carry out indoor secondary decoration to hide, input manpower and materials are more; 4, can be out of shape under External Force Acting and high temperature and collapse, cause fireproof partition to lose efficacy.In sum, existing high-rise glass curtain wall interlayer fireproof partition construction method can not meet the application of existing high-rise glass curtain wall engineering, has a strong impact on physical property and the application life thereof of building curtain wall.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple, reduction of erection time of constructing, reduces costs, quality does not affect by constructor's level, the high-rise glass curtain wall interlayer fireproof construction method of flameproof effect excellence.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of high-rise glass curtain wall interlayer fireproof partition construction method, is characterized in that: PLASTIC LAMINATED adopts emperor's gold plate, and its construction method comprises:
The base cleaning of step one interlayer matrix: the interlayer matrix of PLASTIC LAMINATED to be installed is carried out flattening, clearing up;
Step 2 surveying setting-out: hang up vertical reference control line on matrix, and determine the horizontal control lines of each floor, matrix between modification level, the levels of planarity of fireproof partition between key-course is carried out with this; Measure the actual installation size of the curtain skeleton of interlayer matrix according to design drawing, eject vertical line at PLASTIC LAMINATED lattice edge joint position;
The output of step 3 PLASTIC LAMINATED machined parameters and numbering: the typesetting figure distinguishing drawing standard PLASTIC LAMINATED and Special-shaped fireproof plate by curtain wall lattice, measure and record length and each limit parameter of described standard flame-protection plate and Special-shaped fireproof plate, the specification of confirmed standard PLASTIC LAMINATED, Special-shaped fireproof plate and quantity, and described standard flame-protection plate, Special-shaped fireproof plate are numbered;
The processing of step 4 PLASTIC LAMINATED: according to the parameter of often kind of standard flame-protection plate, Special-shaped fireproof plate to Huang Jin plate rational deployment to be processed, overall processing, and PLASTIC LAMINATED after processing marks corresponding numbering;
The installation of step 5 PLASTIC LAMINATED: according to described typesetting figure and described numbering, by described PLASTIC LAMINATED location and installation;
Filleting landscaping treatment between step 6 PLASTIC LAMINATED.
Further, in described step one, adopt chisel chipping by needing the place of the interlayer matrix projection of installing PLASTIC LAMINATED or be polished flat with abrasive machine; Fill and lead up at sunk part polymer mortar etc., a period of time to be placed by needing the position entirety of installing PLASTIC LAMINATED to polish one time, makes it smooth after thoroughly hardening.
Further, in described step 2, according to elevation of building design and the technical requirements of curtain wall interlayer fireproof partition, outside the building wall negative and positive angle place hangs vertical reference control line, pull out elongated horizon at every floor, determine horizontal control lines, with the planeness of fireproof partition between this key-course; Utilize vertical calibration equipment to hang out vertical line at PLASTIC LAMINATED lattice edge joint position, metope ejects the line of ink marker, utilize horizontal alignment equipment accurately to locate, eject frame bar at metope.
Preferably, in described step 5, the described PLASTIC LAMINATED of each interlayer fireproof partition is divided into top board (11), outer panel (12), base plate (13) and interior plate (14).
Further preferably, in described step 5, the soffit of described top board (11) and the inner surface of outer panel (12) to be orthogonally connected by the 4th adjustable corner brace (24), the upper surface of described base plate (13) and the inner surface of interior plate 14 be by the 5th adjustable corner brace (25) orthogonal connection;
Be used for fixing perpendicular ventricumbent top, the plane of structure being fixed on interlayer matrix of the first adjustable corner brace (21) of top board (11) outwards unsettled; 3rd adjustable corner brace (23) is vertically fixed on the bottom of interlayer matrix, the bottom of matrix between its downward excess layer, and the thickness that after guaranteeing to install, the length of described outer panel (12) equals interlayer matrix adds the length of interior plate (14).
Further, on the two sides of described first adjustable corner brace (21), the second adjustable corner brace (22), the 4th adjustable corner brace (24), the 5th adjustable corner brace (25), all vertical vertical edge has several oblong adjustable orifice, and described 3rd adjustable corner brace (23) one side be fixed on matrix has the oblong adjustable orifice of several vertical vertical edges.
The scheme be more preferably, described first adjustable corner brace (21), the second adjustable corner brace (22), the 3rd adjustable corner brace (23), the 4th adjustable corner brace (24) and the adjustable hot-galvanized steel corner brace of the 5th adjustable corner brace (25);
First adjustable corner brace (21), the 3rd adjustable corner brace (23) adopt expansion bolt to be fixed on interlayer matrix, need the position fixed to adopt stainless steel bolt to fix between the first adjustable corner brace (21), the second adjustable corner brace (22), the 3rd adjustable corner brace (23), the 4th adjustable corner brace (24), the 5th adjustable corner brace (25).
The height of described interlayer fireproof partition is more than or equal to 800mm.
More attractive in appearance for making, in step 6, between PLASTIC LAMINATED, between PLASTIC LAMINATED and interlayer matrix, paste U.S. line paper, adopt fireproof seal gum to carry out filleting process, after fireproof seal gum solidifies, remove the U.S. line paper of fire shield surface.
Compared with prior art, high-rise glass curtain wall interlayer fireproof partition construction method of the present invention, the emperor's gold plate material adopting fire-proof sound insulation effect special and processing technology make PLASTIC LAMINATED, PLASTIC LAMINATED is connected with building substrate by adjustable corner brace, formed independently to close and cut off, overcome PLASTIC LAMINATED in prior art and be connected on the aluminium alloy joist of high-rise glass curtain wall, be subject under External Force Acting or long-time high temperature, the distortion of integral Al-alloy keel is collapsed, and causes the drawback that fireproof partition lost efficacy.Installation process is convenient and reliable, fire shield surface can directly and indoor suspended ceiling carry out seamless link, avoid secondary furred ceiling, improve workmanship; PLASTIC LAMINATED adopts centralized production, saves consumptive material, reduces human input, simplify construction process, speed up the work, reduction of erection time, safety and environmental protection, there is thermal insulation, fire prevention, antidetonation, sound-absorbing, sound insulation, heat insulation function, and meet environmental friendly indoor material requirements, safe and reliable.The present invention, compared with the curtain wall fireproof partition construction method of prior art, has obvious advantage in duration, quality, safety, cost, environmental protection etc.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is explained in further detail.
Fig. 1 is the generalized section of fireproof partition between embodiment high-rise glass curtain wall partial layer
Fig. 2 is the adjustable corner brace schematic cross-section that adjustable orifice is opened on embodiment two sides
Fig. 3 is the adjustable corner brace schematic top plan view that adjustable orifice is opened on embodiment two sides
Detailed description of the invention
Embodiment
Preferred steps is as follows:
The base cleaning of step one interlayer matrix
The Base Smoothness of installing the interlayer matrix at PLASTIC LAMINATED place directly affects installation quality, in order to obtain good installation quality, preferably adopting chisel chipping in the place of basic unit's projection or being polished flat with abrasive machine; Fill and lead up at sunk part polymer mortar etc., a period of time to be placed by needing the position entirety of installing PLASTIC LAMINATED to polish one time, makes it smooth after thoroughly hardening.Also other suitable modes in prior art can be adopted.
Step 2 surveying setting-out
Preferably, before formal surveying setting-out, organize person skilled to be familiar with job site actual conditions, be familiar with construction drawing, understand the place easily occurring deviation in construction, the especially closing in position of curtain wall, avoid occurring conflict in work progress.
According to elevation of building design and the technical requirements of curtain wall interlayer fireproof partition, preferably, outside the building wall negative and positive angle and other necessary places hang vertical reference control line, pull out elongated horizon at every floor, determine horizontal control lines, with the planeness of fireproof partition between this key-course; Utilize plumb aligner to hang out vertical line at fire prevention plate lattice edge joint position, metope ejects the line of ink marker, and the carrying out adopting the equipment such as laser level to coordinate accurately is located, and ejects frame bar at metope; Measure curtain skeleton actual installation position and size on interlayer matrix by design drawing, must go on a public errand.Also the method for other surveying setting-out of prior art can be adopted.
The output of PLASTIC LAMINATED machined parameters described in step 3 and numbering
The typesetting figure of interlayer standard flame-protection plate and Special-shaped fireproof plate is drawn out by curtain wall lattice, measure and record length and each limit parameter of described standard flame-protection plate and Special-shaped fireproof plate, determine specification and the quantity of the described standard flame-protection plate required for whole interlayer matrix, Special-shaped fireproof plate, and the kind of described standard flame-protection plate, Special-shaped fireproof plate is numbered;
The processing of step 4 PLASTIC LAMINATED: the parameter of standard flame-protection plate, Special-shaped fireproof plate and quantity needed for often kind, optimized rational deployment is carried out to emperor's gold plate to be processed, preferably, be supplied to machining center and carry out the unified processing of entirety, and PLASTIC LAMINATED after processing marks corresponding numbering;
The installation of step 5 PLASTIC LAMINATED: according to described typesetting figure and described numbering, formulate sequence of construction, according to described sequence of construction by described standard flame-protection plate, Special-shaped fireproof plate location and installation on interlayer matrix.
The present embodiment is installed as with standard flame-protection plate the construction method that example further illustrates interlayer fireproof partition, further in order to adjust the accurate location of PLASTIC LAMINATED, described PLASTIC LAMINATED adopts adjustable corner brace to install, namely open several oblong adjustable orifice at the vertical vertical edge of the one or both sides of right angle type corner brace, bolt can move until adjust to suitable permanent position in adjustable orifice.As preferred scheme, adjustable corner brace adopts adjustable hot-galvanized steel corner brace.As shown in Figure 2 and Figure 3, each respectively on two faces of described adjustable corner brace 3 oblong adjustment holes 211 are set, second adjustable corner brace 22, the 4th adjustable corner brace 24 and the 5th adjustable corner brace 25 are identical with the first adjustable corner brace 21 structure, 3rd adjustable corner brace 23 and the first adjustable corner brace 21 similar, difference be only its connect matrix one side on have three oblong adjustment holes.The installation of PLASTIC LAMINATED is preferably carried out according to the following steps:
A, the installation of adjustable corner brace on interlayer matrix
As shown in Figure 1, adjustable corner brace installation site and quantity is determined according to design drawing and described typesetting figure.In the present embodiment, the top of interlayer matrix is fixed on down for vertical plane, the first adjustable corner brace 21 that plane of structure is used for connecting top board 11, the metope of interlayer matrix ejects with laser level or other Measurement and calibration instruments the control line of the first adjustable corner brace 21 top or bottom; For the 3rd adjustable corner brace 23 of fixing interior plate 14, one face is longitudinally fixed on the bottom of interlayer matrix, the bottom of matrix between downward excess layer, interlayer matrix ejects its top control line, and determine described adjustable corner brace center line, guarantee that thickness that the length of described outer panel 12 after installing equals interlayer matrix adds the length of interior plate 14.First adjustable corner brace 21 and the 3rd adjustable corner brace 23 are fixed on interlayer matrix metope according to drawing, the expansion bolt 40 of M10 × 80 is preferably adopted to fix, electric percussion drill can be adopted to hole, the installation site of expansion bolt 40 meets code requirement apart from concrete Edge Distance, usually 50mm is not less than, drilling depth must be greater than the length of expansion bolt, bore diameter deviation preferably controls within 0 ~+0.5mm, the surfacing of overall benefit embedded part is required after swollen bolt is installed in hole, by the adjustable orifice expansion bolt in adjustable corner brace, adjustable for tune hot-galvanized steel corner brace is adjusted to exact position, further, loosen to prevent expansion bolt, fastening rear bolt head exceeds the distance≤30mm of nut, nut and bolt spot welding are no less than 2 points, pad is increased and in the spot welding of pad place between expansion bolt and adjustable corner brace.
B, the connection of top board 11 and outer panel 12
The 4th adjustable corner brace 24 is adopted to be connected by bolt 30 top board 11 processed and the outer panel 12 of corresponding numbering, the plane of structure of the 4th adjustable corner brace 24 is fixedly connected with the soffit of top board 11, vertical plane connects the inner surface of outer panel 12 downwards, control outer panel 12 and the verticality be connected between top board 11 and planeness, after having adjusted, the bolt on fastening 4th adjustable corner brace 24 plane of structure and vertical plane.Press drawing in the bottom of outer panel 12 and install the 5th adjustable corner brace 25, make the inner surface of its vertical plane connection outer panel 12 upwards, plane of structure is inwardly unsettled.Top board is connected with the elongated adjustable corner brace that also can adopt of outer panel.
C, the connection of base plate 13 and interior plate 14
The second adjustable corner brace 22 is adopted to be connected by bolt 30 base plate 13 processed and the interior plate 14 of corresponding numbering, the inner surface of the second adjustable corner brace 22 vertical plane connection interior plate 14 upwards, the upper surface of plane of structure connecting bottom board 13, control interior plate 14 and the verticality be connected between base plate 13 and planeness, after having adjusted, the bolt on fastening second adjustable corner brace 22 plane of structure and vertical plane.Base plate and interior plate also can adopt elongated adjustable corner brace to be connected.
D, top board 11 and metope are installed
The plane of structure of the top board 11 connected through step b with described first adjustable corner brace 21 is connected, bolt 30 is through the adjustable orifice in the first adjustable corner brace 21 and the 4th adjustable corner brace 24 plane of structure, the fine adjustment passing in and out position is carried out in described oblong adjustable orifice, make that top board 11 is smooth to be covered on interlayer matrix, after location adjustment completes, fastening bolt 30.
F, interior plate 14 and metope are installed
Bolt 30 is fixed on the adjustable orifice in matrix one side through the vertical plane of the second adjustable corner brace 22 and the 3rd adjustable corner brace 23, the fine adjustment passing in and out position is carried out in described adjustable orifice, the interior plate 14 connected through step c is connected with described 3rd adjustable corner brace 23 bolt, makes on its smooth metope covering matrix between beam bottom; Bolt 30 is adopted to be fixedly connected with the plane of structure of described second adjustable corner brace 22 plane of structure of the 5th adjustable corner brace 25, in order to meet the requirement of interlayer fireproof, height between described top board 11 and base plate 13 must not lower than 800mm, after adjustment completes, fastening bolt, seals fixing process by using Waterproof gum between the upper end of base plate 13 and the metope of interlayer matrix.
Filleting landscaping treatment between step 6, PLASTIC LAMINATED
Pollutant between PLASTIC LAMINATED is cleaned out, preferably, pastes U.S. line paper in PLASTIC LAMINATED both sides, adopt fireproof seal gum to carry out filleting process, after fireproof seal gum solidifies, remove the U.S. line paper of fire shield surface, other rational filletings also can be adopted to beautify mode.
Preferably, the special scheme of high-rise glass curtain wall interlayer fireproof partition construction method is worked out and is audited and strictly should press " dangerous larger part-to-item project safety management way " enforcement.
Table one is that in the present invention, construction method and existing construction technology process compare:
Table one
As can be seen from table one, compared with prior art, the present invention every square metre saves 200.00 yuan, compared to existing technology cost-saving 30%, duration shortens 10%, simultaneously owing to using the special material of emperor's gold plate and processing its overall batch production, plate cutting noise pollution is reduced in job site, avoid the dust pollution that the filling of preventing fires rock wool causes, environmental protection is reliable more, process is carried out according to drawing and typesetting figure, lower to workman's construction requirement, reduces training cost and causes the rear interlayer of construction to cut off the larger possibility of difference because of the individual difference of construction.
Claims (9)
1. a high-rise glass curtain wall interlayer fireproof partition construction method, is characterized in that: PLASTIC LAMINATED adopts emperor's gold plate, and its construction method comprises:
The base cleaning of step one interlayer matrix: the interlayer matrix of PLASTIC LAMINATED to be installed is carried out flattening, clearing up;
Step 2 surveying setting-out: hang up vertical reference control line on matrix, and determine the horizontal control lines of each floor, matrix between modification level, the levels of planarity of fireproof partition between key-course is carried out with this; Measure the actual installation size of the curtain skeleton of interlayer matrix according to design drawing, eject vertical line at PLASTIC LAMINATED lattice edge joint position;
The output of step 3 PLASTIC LAMINATED machined parameters and numbering: the typesetting figure distinguishing drawing standard PLASTIC LAMINATED and Special-shaped fireproof plate by curtain wall lattice, measure and record length and each limit parameter of described standard flame-protection plate and Special-shaped fireproof plate, the specification of confirmed standard PLASTIC LAMINATED, Special-shaped fireproof plate and quantity, and described standard flame-protection plate, Special-shaped fireproof plate are numbered;
The processing of step 4 PLASTIC LAMINATED: according to the parameter of often kind of standard flame-protection plate, Special-shaped fireproof plate to Huang Jin plate rational deployment to be processed, overall processing, and PLASTIC LAMINATED after processing marks corresponding numbering;
The installation of step 5 PLASTIC LAMINATED: according to described typesetting figure and described numbering, by described PLASTIC LAMINATED location and installation.
Filleting landscaping treatment between step 6 PLASTIC LAMINATED.
2. high-rise glass curtain wall interlayer fireproof partition construction method as claimed in claim 1, is characterized in that: in described step one, adopts chisel chipping by needing the place of the interlayer matrix projection of installing PLASTIC LAMINATED or is polished flat with abrasive machine; Fill and lead up at sunk part polymer mortar etc., a period of time to be placed by needing the position entirety of installing PLASTIC LAMINATED to polish one time, makes it smooth after thoroughly hardening.
3. high-rise glass curtain wall interlayer fireproof partition construction method as claimed in claim 1, is characterized in that:
In described step 2, according to elevation of building design and the technical requirements of curtain wall interlayer fireproof partition, outside the building wall negative and positive angle place extension vertical reference control line, pulls out elongated horizon at every floor, determine horizontal control lines, with the planeness of fireproof partition between this key-course; Utilize vertical calibration equipment to hang out vertical line at PLASTIC LAMINATED lattice edge joint position, metope ejects the line of ink marker, utilize horizontal alignment equipment accurately to locate, eject frame bar at metope.
4. high-rise glass curtain wall interlayer fireproof partition construction method as claimed in claim 1, it is characterized in that: in described step 5, the described PLASTIC LAMINATED of each interlayer fireproof partition is divided into top board (11), outer panel (12), base plate (13) and interior plate (14).
5. high-rise glass curtain wall interlayer fireproof partition construction method as claimed in claim 4, it is characterized in that: in described step 5, the soffit of described top board (11) and the inner surface of outer panel (12) to be orthogonally connected by the 4th adjustable corner brace (24), the upper surface of described base plate (13) and the inner surface of interior plate 14 be by the 5th adjustable corner brace (25) orthogonal connection;
Be used for fixing perpendicular ventricumbent top, the plane of structure being fixed on interlayer matrix of the first adjustable corner brace (21) of top board (11) outwards unsettled; 3rd adjustable corner brace (23) is vertically fixed on the bottom of interlayer matrix, the bottom of matrix between its downward excess layer, and the thickness that after guaranteeing to install, the length of described outer panel (12) equals interlayer matrix adds the length of interior plate (14).
6. high-rise glass curtain wall interlayer fireproof partition construction method as claimed in claim 5, it is characterized in that: on the two sides of described first adjustable corner brace (21), the second adjustable corner brace (22), the 4th adjustable corner brace (24), the 5th adjustable corner brace (25), all vertical vertical edge has several oblong adjustable orifice, and described 3rd adjustable corner brace (23) one side be fixed on matrix has the oblong adjustable orifice of several vertical vertical edges.
7. high-rise glass curtain wall interlayer fireproof partition construction method as claimed in claim 6, is characterized in that: described first adjustable corner brace (21), the second adjustable corner brace (22), the 3rd adjustable corner brace (23), the 4th adjustable corner brace (24) and the 5th adjustable corner brace (25) are preferably adjustable hot-galvanized steel corner brace;
First adjustable corner brace (21), the 3rd adjustable corner brace (23) adopt expansion bolt to be fixed on interlayer matrix, need the position fixed to adopt stainless steel bolt to fix between the first adjustable corner brace (21), the second adjustable corner brace (22), the 3rd adjustable corner brace (23), the 4th adjustable corner brace (24), the 5th adjustable corner brace (25).
8. the high-rise glass curtain wall interlayer fireproof partition construction method as described in claim 1 ~ 7, is characterized in that: the height of described interlayer fireproof partition is more than or equal to 800mm.
9. the high-rise glass curtain wall interlayer fireproof partition construction method as described in any one of claim 1 ~ 8, it is characterized in that: in step 6, U.S. line paper is pasted between PLASTIC LAMINATED, between PLASTIC LAMINATED and interlayer matrix, fireproof seal gum is adopted to carry out filleting process, after fireproof seal gum solidifies, remove the U.S. line paper of fire shield surface.
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| CN201510726629.9A CN105298144B (en) | 2015-10-30 | 2015-10-30 | High-rise glass curtain wall interlayer fireproof partition construction method |
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| CN201510726629.9A CN105298144B (en) | 2015-10-30 | 2015-10-30 | High-rise glass curtain wall interlayer fireproof partition construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241936A (en) * | 2019-07-22 | 2019-09-17 | 中建安装集团有限公司 | A kind of subway engineering fire-resistant plugging device facilitating installation |
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| CN102561541A (en) * | 2011-12-29 | 2012-07-11 | 华东建筑设计研究院有限公司 | Fireproof partition wall of glass curtain wall |
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| JPH094093A (en) * | 1995-06-16 | 1997-01-07 | Misawa Homes Co Ltd | House containing party wall and panel for party wall |
| CN102561541A (en) * | 2011-12-29 | 2012-07-11 | 华东建筑设计研究院有限公司 | Fireproof partition wall of glass curtain wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241936A (en) * | 2019-07-22 | 2019-09-17 | 中建安装集团有限公司 | A kind of subway engineering fire-resistant plugging device facilitating installation |
| CN110241936B (en) * | 2019-07-22 | 2024-04-12 | 中建安装集团有限公司 | Subway engineering fireproof plugging device convenient to install |
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| CN105298144B (en) | 2017-09-29 |
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