ICS P 32 NATIONAL STANDARD OF THE PEOPLE S REPUBLIC OF CHINA 中华人民共和国国家标准 GB/T Technical Specification for building curtain walls, wi

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1 ICS P 32 NATIONAL STANDARD OF THE PEOPLE S REPUBLIC OF CHINA 中华人民共和国国家标准 GB/T Technical Specification for building curtain walls, windows and doors 建筑幕墙门窗通用技术条件 Issued on April 22, 2015 Implemented since December 1, 2015 Issued by General Administration of Quality Supervision, Inspection and Quarantine of the People s Republic of China Standardization Administration of the People s Republic of China 1

2 Contents Foreword Scope Normative references Terms and definitions Performance classification and selection Requirements...7 Annex A (Normative) Relevancies between properties and parts

3 Foreword This standard is prepared in accordance with the stipulations given in GB/T This standard is proposed by Ministry of Housing and Urban-rural Development. This standard is under the jurisdiction of National Technical Committee on Building Curtain Walls, Windows and Doors of Standardization Administration of China (SAC/TC 448). The institutions responsible for the preparation of this standard include China Academy of Building Research, Guangdong Academy of Building Research and China Institute of Building Standard Design & Research. The institutions participating in the preparation of this standard include Technoform Bautec (Suzhou) Thermal Insulation Materials Co., Ltd., Beijing University of Technology, Shenzhen Xinshan Curtain Wall Technology Consultation Co., Ltd., Beijing JEG Curtain Wall Decoration Engineering Co., Ltd., Beijing Jiangho Curtain Wall Co., Ltd., Guangdong Kinlong Hardware Products Co., Ltd., Guangdong Golden Curtain Wall Group Co., Ltd., Guangzhou Baiyun Chemical Industry Co., Ltd., China South Glass Holding Co., Ltd, Dalian Shide Group Co., Ltd., Zhejiang Baoye Construction Group Company Limited, Shanghai architectural Windows and Doors Inspection Station, Jiangsu Testing Center for Quality of Construction Engineering Co., Ltd., Guangdong Hehe Architectural Hardware Products Co., Ltd., Beijing JIAYU Door Window and Curtain Wall Joint-Stock Co., Ltd., Beijing Zhongxinfang Architectural Technology Research Center, Roto Frank Architectural Hardware Products (Beijing) Co., Ltd., Beijing Synergy Vacuum Glass Technology Co., Ltd., Wuhan Teling Energy Saving Windows and Doors Co., Ltd., Beijing East-Asia Aluminum Industry Co., Ltd., Beijing Meichi Architectural Materials Co., Ltd., SCHÜCO Curtain Walls, Windows and Doors System (Beijing) Co., Ltd., Harbin Zhongda Profiles and Science Co., Ltd., Qinhuangdao OTK Energy Saving Windows and Doors Co., Ltd., Shenzhen Institute of Building Research Co., Ltd., Hainan Nam Kwong (Group) Company Limited, National Glass and Quartz Quality Supervision and Inspection Center, Xinjiang Xiandai International Building Engineering Co., Ltd., Guangdong JMA Aluminum Profile Factory (Group) Co., Ltd., Changchun Architecture Energy Conservation Testing Center, Zhejiang New Century Engineering Inspection Co., Ltd., Shenyang Joydon System Co., Ltd., Hainan Province Construction Group Corporation Limited, Jiangyin Haida Rubber 1

4 and Plastics Co., Ltd., Beijing Zhuoyue Hollow Glass (Materials) Co., Ltd., and Suzhou Golden Glass Technologies Co., Ltd. The drafters participating in the preparation of this standard include WANG Hongtao, WAN Chenglong, SHI Qing, LIU Huitao, YANG Shichao, SHI Minxiang, GU Taichang, LIU Jun, LIN Borong, SUN Shibin, DU Jiyu, BAN Guangsheng, TAN Zhongxin, DU Wanming, HUANG Qingwen, YAO Weihong, MA Yue, XU Wuyi, FAN Huaijin, YU Yachao, HUANG Riyong, SHI Bonian, ZHANG Yunlong, ZENG Guosheng, ZHANG Guofeng, LIU Zhongwei, HE Hong, JIANG Yi, YI Changbo, WANG Liying, ZHONG Tiezhu, SUN Deyan, ZONG Xiaodan, JIN Renzhe, BU Zengwen, ZHAO Qing, WU Jie, HU Jianwen, YU Zhilong, LI Ye, YU Jie, YANG Xiangdong, GUO Zewen, PENG Xun, ZHAO Benjun, WEN Zhong, ZHUANG Dajian, and WU Congzhen 2

5 General specifications for building curtain walls, windows and doors 1. Scope This standard specifies performance classification and selection, requirements and tests concerning curtain walls, windows and doors. This standard is applicable to civilian use curtain walls, windows and doors. This standard is either applicable to external wall decoration system with the panel directly affixed to the main structure or external wall hanging system without supporting frame or structure, nor applicable to special use doors and windows e.g., fire-proof windows and doors, escape windows and doors, smoke exhaust windows, ray shielding windows and doors, etc. 2. Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 2680 Determination of light transmittance, solar direction transmittance, total solar energy transmittance and ultraviolet transmittance for glass in building and related glazing factors GB/T 5823 Terminology for building windows and doors GB/T 7106 Graduations and test methods of air permeability, water tightness, wind load resistance performance for building external windows and doors GB/T 8484 Graduation and test method for thermal insulating properties of doors and windows GB/T 8485 Graduation and test method for airborne sound insulating properties of windows and doors GB/T 9158 Mechanical test methods for windows GB/T Graduation and test method of day-lighting properties for external windows GB/T Fire resistance tests --- Elements of building construction Glazed elements GB/T Doorsets --- Soft heavy body impact test GB/T Test method of air permeability, water tightness, wind load resistance 3

6 performance for curtain walls GB/T Safety glazing materials in building --- Part 1: Fire-resistant glass GB/T Safety glazing materials in building --- Part 4: Heat soaked thermally tempered glass GB/T Structural silicone sealants for building GB/T Optical properties of glass curtain walls GB/T Graduations and test method for performance of deformation between stories of curtain wall GB/T Curtain wall for building GB/T Graduation and test method for thermal insulating properties of curtain walls GB/T Doorsets - Vertical load test GB/T Hinged or pivoted doors --- Determination of the resistance to static torsion GB/T Graduations and test method of sand and dust resistance performance for building external windows and doors GB/T Graduations and test method for performance of exterior windows and doors, curtain walls impacted by windborne debris in windstorm GB/T Test method of resistance to repeat opening and closing for windows and doors GB/T Classification and test method of air-blast resistance performance for curtain walls, windows and doors GB/T Requirements for size coordination for opening of windows and doors in building GB Code of design on building fire protection and prevention GB Building Lightning Protection Design Code JG/T 397 Method of thermal recycling test for building curtain wall JGJ 102 Technical code for glass curtain wall engineering JGJ/T 151 Calculation specification for thermal performance of windows, doors and glass curtain walls ISO Test method of doorset opening performance in diagonal deformation --- Seismic aspects 4

7 3. Terms and definitions For the purpose of this standard, the terms and definitions given in GB/T 5823 and GB/T and the following terms and definitions apply. 3.1 设计相似性 similar design The characteristics that the change in the designs of curtain walls, windows and doors, glasses and hardware etc. or the design of assembly manner not triggering the change of performance 3.2 代表性试件 representative sample The test piece which can represent the results of performance tests of similar design curtain walls, windows or glasses 3.3 门窗耐火完整性 fire resistant integrity of windows and doors The capacity of stopping fire flame or hot air passing through or fire flame appearing at the back of fire when one side of building windows and doors get fire under the standard fire resistant test condition 4. Performance classification and selection Performance classification and selection of curtain walls, windows and doors shall comply with the stipulations given in table 1. 5

8 Table 1 Performance classification of and selection of curtain walls, windows and doors Door Window Curtain wall Classification Property and code External Internal External Internal Light Light tight door door window window transmittance Closed Slotting Wind load resistant properties Planar deformation performance Impact resistant properties --- Safety Impact resistant properties by windborne debris in windstorm Air-blast resistant properties Fire resistant integrity Energy conservation Air permeability --- properties (q 1, q 2) Thermal conversion (K) --- Sun shading properties (SC) Applicability Opening/closing properties (F) Water tightness properties ( p) Airborne sound --- insulating properties 6

9 (R w + C tr; R w + C) Day-lighting properties (T t) Dust and sand prevention Vertical load resistant properties Static torsion resistant properties Distorted deformation resistant properties Diagonal deformation resistant properties Heavy force closing resistant properties Opening limitation Lockable stay test Repeat opening/closing Endurance properties Thermal recycling properties Note 1: is necessary property; is selective property; --- means not required; Note 2: Planar deformation performance is applicable to the area with designed earthquake prevention intensity grade 6 or more. Note 3: Opening/closing properties are not applicable to automatic door. 5. Requirements 5.1 General requirements 7

10 5.1.1 The appearance, materials, dimensions of building curtain walls, windows and doors and assembly quality shall comply with the relevant national stipulations The designed service life of main components such as building curtain walls, plates and section bars of windows and doors shall not be lower than 25 years Fire resistance and lightning prevention levels of building curtain walls shall comply with GB and GB The tempered glass used by building curtain walls shall comply with JGJ 102. The tempered glass used by doors and windows shall comply with GB For external windows and doors with fire resistant integrity requirements, at least one layer of glass shall comply with GB The reinforced steel or aluminum lining used by external plastic windows and doors, external aluminum composite windows and doors, external aluminum windows and doors can be connected into an enclosed frame. Measure to prevent the detachment of glass after being caught in fire shall be taken within glazing rabbet The structural adhesive used by glass curtain walls and hidden windows shall comply with GB The selection of building windows and doors shall comply with GB/T Performance Safety Wind load resistant properties The graduations of wind load resistant properties of curtain walls, windows and doors with the graded detected pressure p 3 as the grading index shall comply with the stipulations given in table 2. 8

11 Table 2 Graduations of wind load resistant properties Grade Grading index p 3 / kpa 1.0 p 3 < p 3 < p 3 < p 3 < p 3 < p 3 < p 3 < p 3 <5.0 p Note: Specific grading index shall be indicated after grade Planar deformation performance The graduations of planar deformation performance of external doors and curtain walls with the angle of displacement between stories γ as the grading index shall comply with the stipulations given in table 3. Table 3 Graduations of planar deformation performance Grade Grading index γ 1/400 γ <1/300 1/300 γ <1/200 1/200 γ <1/150 1/150 γ <1/100 γ 1/ Impact resistant properties The graduations of impact resistant properties of windows and doors with the maximum height that windows and doors can bear, from which soft heavy body is fallen to create an impacting force to hit windows and doors shall comply with the stipulations given in table 4. The graduations of impact resistant properties of curtain walls with the impact energy E as the grading index shall comply with the stipulations given in table 5. The impact energy index of curtain walls used in the place with large person flow density or where the youth or children play shall not be lower than grade 2. Table 4 Graduations of soft heavy object impact resistant properties Grade Soft heavy body falling height/ mm 9

12 Table 5 Graduations of impact resistant properties of curtain wall Grading index Indoor Outdoor Impact energy E / (N m) > Falling height H / mm > Impact energy E / (N m) >800 Falling height H / mm >1800 Note 1: Property indicated as: indoor graduations/outdoor graduations, e.g., 2/3 indicating indoor grade 2, outdoor grade 3. Note 2: When indoor graduation is grade 3, the actual measured impact energy shall be indicated; when outdoor grade is grade 4, the actual impact energy shall be indicated; e.g., 1200/1900, indicating indoor 1200 N m, outdoor 1900 N m Impact resistant properties by windborne debris in windstorm The graduations of impact resistant properties by windborne debris in windstorm with the mass m and speed v of emitted object as the grading index shall comply with the stipulations given in table 6. Table 6 Graduations of impact resistant properties by windborne debris in windstorm from curtain walls, windows and doors Grade Emitted object Steel ball Wood Wood Wood Wood Mass m 2g ± 0.1g 0.9g ± 0.1g 2.1g ± 0.1g 4.1g ± 0.1g 4.1g ± 0.1g Speed v 39.6 m/s 15.3 m/s 12.2 m/s 15.3 m/s 24.4 m/s Air-blast resistant properties The graduations of air-blast resistant properties from the explosion of car bomb or hand bomb package with the hazard level of test piece after being impacted as the grading index shall comply with the stipulations given in table 7 and 8. 10

13 Table 7 Graduations of properties of car bomb Car bomb Hazard grade code grade code A B C D E F EXV1 EXV1(A) EXV1(B) EXV1(C) EXV1(D) EXV1(E) EXV1(F) EXV2 EXV2(A) EXV2(B) EXV2(C) EXV2(D) EXV2(E) EXV2(F) EXV3 EXV3(A) EXV3(B) EXV3(C) EXV3(D) EXV3(E) EXV3(F) EXV4 EXV4(A) EXV4(B) EXV4(C) EXV4(D) EXV4(E) EXV4(F) EXV5 EXV5(A) EXV5(B) EXV5(C) EXV5(D) EXV5(E) EXV5(F) EXV6 EXV6(A) EXV6(B) EXV6(C) EXV6(D) EXV6(E) EXV6(F) EXV7 EXV7(A) EXV7(B) EXV7(C) EXV7(D) EXV7(E) EXV7(F) Table 8 Graduations of properties of hand bomb package Hand bomb package grade code Hazard grade code A B C D E F SB1 SB1(A) SB1(B) SB1(C) SB1(D) SB1(E) SB1(F) SB2 SB2(A) SB2(B) SB2(C) SB2(D) SB2(E) SB2(F) SB3 SB3(A) SB3(B) SB3(C) SB3(D) SB3(E) SB3(F) SB4 SB4(A) SB4(B) SB4(C) SB4(D) SB4(E) SB4(F) SB5 SB5(A) SB5(B) SB5(C) SB5(D) SB5(E) SB5(F) SB6 SB6(A) SB6(B) SB6(C) SB6(D) SB6(E) SB6(F) SB7 SB7(A) SB7(B) SB7(C) SB7(D) SB7(E) SB7(F) Fire resistant integrity The fire resistant integrity of external window and door shall not be lower than 30min. Note: For the requirements on the fire resistant integrity of building external window and door, see GB Energy conservation Air permeability properties The graduations of air permeability properties of windows and doors with the leaked air volume per unit length of gap q 1 or the leaked air volume per unit square area q 2 as the 11

14 grading index shall comply with the stipulations given in table 9. The graduations of air permeability properties of curtain walls with the leaked air volume per unit length of opened gap q L or the leaked air volume per unit square area of curtain wall q A as the grading index shall comply with the stipulations given in table 10. Table 9 Graduations of air permeability properties of windows and doors Grade Grading index q 1/ [m 3 /(m h)] 4.0 q 1 > q 1 > q 1 > q 1 > q 1 > q 1 > q 1 >0.5 q Grading index q 2/ [m 3 /(m h)] 12 q 2 > q 2 > q 2 > q 2 > p q 2 > q 2 > q 2 >1.5 q Note: Specific grading index shall be indicated after grade 8. Table 10 Graduations of air permeability properties of curtain walls Grading code Grading index q L/ [m 3 /(m h)] Grading index q A/ [m 3 /(m h)] Opened part 4.0 q L > q L > q L >0.5 q L 0.5 Curtain wall 4.0 q A > q A > q A >0.5 q A 0.5 Note: Specific grading index shall be indicated after grade Thermal insulating properties The graduations of thermal insulating properties of curtain walls, windows and doors with heat transfer coefficient K as the grading index shall comply with the stipulations given in table 11 and

15 Table 11 Graduations of thermal insulating properties of windows and doors In the unit of watts per square meter Grad e Gradi ng K 5 5.0>K 4.0>K 3.5>K 3.0>K 2.5>K 2.0>K 1.6>K 1.3>K K<1 index K Note: Specific grade index value shall be indicated after grade 10. Table 12 Graduations of thermal insulating properties of curtain walls In the unit of watts per square meter Grade code Grading index K K > K > K > K > K > K > K 1.0 K <1.0 Note: Specific grade index value shall be indicated after grade Sun shading properties The graduations of sun shading properties of curtain walls, windows and doors with the sun shading coefficient SC as the grading index shall comply with the stipulations given in table 13 and 14. Table 13 Graduations of sun shading properties of windows and doors Grade Grading index SC 0.8 SC > SC > SC > SC > SC > SC >0.2 SC 0.2 Table 14 Graduations of sun shading properties of curtain walls Grade Grading 0.9 SC 0.8 SC 0.7 SC 0.6 SC 0.5 SC 0.4 SC 0.3 SC SC index SC >0.8 >0.7 >0.6 >0.5 >0.4 >0.3 > Applicability 13

ICS P 32 NATIONAL STANDARD OF THE PEOPLE S REPUBLIC OF CHINA 中华人民共和国国家标准 GB/T Technical Specification for building curtain walls, wi

ICS P 32 NATIONAL STANDARD OF THE PEOPLE S REPUBLIC OF CHINA 中华人民共和国国家标准 GB/T Technical Specification for building curtain walls, wi ICS 91.060 P 32 NATIONAL STANDARD OF THE PEOPLE S REPUBLIC OF CHINA 中华人民共和国国家标准 GB/T 31433-2015 Technical Specification for building curtain walls, windows and doors 建筑幕墙门窗通用技术条件 Issued on April 22, 2015