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Similar standardsJGJ 102-2003: Technical code for glass curtain wall engineering---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/JGJ102-2003JGJ INDUSTRIAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA UDC Technical code for glass curtain wall engineering Issued on. NOVEMBER 14, 2003 Implemented on. JANUARY 1, 2004 Issued by. Ministry of Construction of the People's Republic of China Table of ContentsIntroduction... 6 Foreword... 8 1 General Provisions... 10 2 Terms and Symbols... 11 3 Materials... 17 4 Architectural Design... 24 5 Basic Requirement for Structural Design... 30 6 Structural Design of Framed Supported Glass Curtain Wall... 42 7 Structural Design of Full Glass Curtain Wall... 52 8 Structural Design of Point-supported Glass Curtain Wall... 56 9 Fabrication... 62 10 Construction... 76 11 Project Acceptance... 88 12 Maintenance and Repair... 95 Appendix A Design Value of Strength of Atmospheric Corrosion Resisting Steel... 98 Appendix B Design Value of Connection Strength of Steel Structure... 100 Appendix C Design of Pre-embedded Parts... 103 Explanation of Wording in This Code... 106 INDUSTRIAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA Technical code for glass curtain wall engineering Approval Department. Ministry of Construction of the People's Republic of China Implementation Date. January 1, 2004 Beijing 20031 General Provisions1.0.1 This code is formulated with a view to ensure safety and usability, advanced technique, economy and rationality in glass curtain wall project. 1.0.2 This code is applicable to the design, fabrication, Construction, project acceptance, maintenance and repair of glass curtain wall project of civilian building in non-seismic design and seismic design with earthquake fortification intensity of 6, 7, 8 degree. 1.0.3 In normal serviceability state, glass curtain wall shall keep good working performance. The curtain wall with seismic design shall work normally under the action of earthquake occurred frequently; it shall still work normally after repair under the action of fortification intensity earthquake; the framework of glass curtain wall shall not separate and fall under the action of earthquake occurred infrequently. 1.0.4 Quality control in whole process shall be implemented during design, fabrication, and construction of glass curtain wall project. 1.0.5 The materials, design, fabrication, construction and acceptance, shall comply not only with the requirements stipulated in this code, but also those in the current relevant ones of the nation.2 Terms and Symbols2.1 Terms 2.1.1 Building curtain wall Exterior enclosure structure or decorative structure of building, which comprises supporting structural system and panels, and has the ability to accommodate a certain a-mount of relevant displacement to the main structure, without bearing the action on main structure. 2.1.2 Composite curtain wall Building curtain wall which comprises different materials of panels (such as glass, metal, slate, etc.). 2.1.3 Glass curtain wall Building curtain wall which takes glass as panel material. 2.1.4 Inclined building curtain wall Glass curtain wall which is inclined at an angle larger than 75 degree and less than 90 degree to the horizontal.3 Materials3.1 General Requirement 3.1.1 Materials for glass curtain wall shall meet the requirements of the provisions in current national standards and of design. Material without relevant standard shall meet the design requirements, and have factory certification of qualification. 3.1.2 Weather resisting materials shall be selected for glass curtain wall. For metal material and metal installation kits, except stainless steel and atmospheric corrosion resisting steel, common steel shall be treated with surface hot dip galvanization or inorganic zinc-rich coating or other effective anti-corrosive measures, and aluminium alloy material shall be treated with surface anodic oxidation or electrophoretic painting or powder spraying or fluorocarbon paint spaying. 3.2 Aluminium Alloy Material 3.2.1 The corresponding chemical constitution to the brand of aluminium alloy profiles used in glass curtain wall shall comply with the requirements of relevant provisions in current national standard “Wrought Aluminium and Aluminium Alloys-Chemical Composition Limits” GB/T 3190.The quality of aluminium alloy profiles shall comply with the requirements of provisions in current national standard “Wrought Aluminium Alloy Profiles for Architecture” GB/T 5237, the dimension of profiles shall reach high precision class or ultrahigh precision class. 3.2.5 Accessories and fasteners used together with glass curtain wall shall comply with the requirements of as current national standards following. 3.3 Steel 3.3.1 The steel grade, brand, and qualification class of carbon structural steels and low alloy structural steels used for glass curtain wall shall comply with the requirements of the following current national standards and professional standards. 3.5 Weather Proofing Sealed Materials 3.5.1 Rubber production used in glass curtain wall should be ternary ethylene propylene rubber, chloroprene rubber and silicone rubber. 3.5.2 Sealed rubber strip shall comply with the requirements of provisions in current national standards "Rubber Building Gaskets - Materials for Preformed Solid Vulcanized Structural Gaskets-specification" HB/T 3099 and "Industrial Rubber Sheet" GB/T 5574.4 Architectural Design4.1 General Requirement 4.1.1 The type, structure and material of glass curtain wall shall be selected with comprehensive technical and economical analysis according to service function and elevation design. 4.1.2 Glass curtain wall shall be in harmony with the entire building and surrounding environment. 4.2 Requirements of Performance and Inspection 4.2.1 The performance design of glass curtain wall shall be carried out according to the type, height, shape of the building and the geography, climate, environment conditions at the building site. 4.2.2 The performance gradation of glass curtain wall for wind pressure resistance, air- tightness, water-tightness, heat preservation, sound insulation, shall comply with the requirements of provisions in current national standards "Gradation of Physical Performances for Building Curtain Walls" GB/T 15225. 4.2.3 The performance of wind pressure resistance of glass curtain wall shall meet the requirement in which under the action of characteristic value of wind load, its deformation shall not exceed the defined value, and no damage arises. 4.2.4 When heating, ventilation and air conditioning are required, the air-tightness performance of glass curtain wall shall not be lower than grade 3. 4.2.6 The performance of in-plane deformation of glass curtain wall in non-seismic design shall be designed with the limit value of elastic story drift rotation of main structure; in seismic design, it shall be designed with 3 times of the limit value of elastic story drift rotation of main structure. The matching dimensions of glass and aluminum frame shall also comply with the requirements in article 9.5.2 and 9.5.3. 4.2.11 The performance inspection shall be carried out by national authorized organization. The material, detail, construction method of inspection specimen shall be the same with those of practical project. 4.2.12 In the performance inspection, when some performance item does not meet the requirements stipulated because of installation defect, re-inspection is allowed after the installation technique is improved and defect is mended. The inspection report shall include content about the improvement, and the construction of glass curtain wall shall be performed according to the improved installation technique. When the performance inspection does not reach the stipulated range because of defect of design or materials, inspection shall be ceased, specimen shall be remade and new inspection shall be performed after design is revised or materials are changed. 4.3 Design of Constructional Detail5 Basic Requirement for Structural Design5.1 General Requirement 5.1.1 Glass curtain wall shall be designed as enclosure structure. 5.1.2 Glass curtain wall shall have adequate load-carrying capacity, rigidity, stability and capability to accommodate the relevant displacement to the main structure. 5.1.3 In the design of structure for glass curtain wall, the following action effects shall be calculated. 5.1.5 The elements in glass curtain wall shall be designed under the most unfavourable action among all the effect combinations. 5.1.6 Load-carrying capacity and deflection of structural elements of glass curtain wall shall be checking computed according to the following provisions. 5.2 Mechanical Properties of Materials 5.2.1 Design value of strength of glass shall comply with the values in Table 5.2.1. 5.2.2 Design value of strength of aluminum profiles shall comply with the values in Table 5.2.2. 5.3 Load and Earthquake Action 5.3.1 The characteristic value of weight density of materials of glass curtain wall shall be taken according to the stipulation in Table 5.3.1. 5.3.2 The characteristic value of wind load on glass curtain wall shall be calculated according to the following formula, which shall not be less than 1.0kN/m2. where 5.3.4 The characteristic value of distributed horizontal earthquake action normal to the plane of glass curtain wall shall be calculated according to the following formula. 5.3.6 The characteristic value of earthquake action, which the supporting structure, connection parts and anchor parts bear, shall include the characteristic value of earthquake action transferred from elements of glass curtain wall and the characteristic value of earthquake action caused from its own characteristic value of gravity load. 5.4 Action Effect Combination 5.4.1 When elements of curtain wall are designed for ultimate limit state of load- carrying capacity, the action effect combination shall meet the following requirements;6 Structural Design of Framed Supported Glass Curtain Wall6.1 Glass 6.1.1 The thickness of single sheet glass of frame supported glass curtain wall shall not be less than 6 mm, the thickness of a single sheet of laminated glass should not be less than 5 mm. The difference between the thickness of a single sheet of laminated glass and insulating glass should not be larger than 3mm. 6.1.5 Insulating glass shall be calculated according to the following provisions. 6.2 Transom 6.2.1 The thickness of main bearing part of transom section shall meet the following requirements.7 Structural Design of Full Glass Curtain Wall7.1 General Requirement 7.1.1 Full glass curtain wall in which the height of glass exceeds the limit values in Table 7.1.1 shall be suspended from main structure. 7.1.6 The surface of panel in full glass curtain wall shall not be contact directly with other rigid materials. Clearance between panel surface and decoration surface or structural surface shall not be less than 8mm, which shall be sealed with sealant. 7.1.7 Hanging clamp shall meet the requirements of relevant provisions in current professional standard "The Support Device of Suspended Glass Curtain Wall" JG 139. 7.1.8 The glass in point-supported glass curtain wall shall meet the requirements stipulated in article 4.4.2 and article 4.4.3 in this code. 7.2 Panel 7.2.1 The thickness of panel glass should not be less than 10 mm; the thickness of single sheet of laminated glass shall not be 8 mm. 7.3 Glass Rib 7.3.1 The thickness of cross section of full glass curtain wall shall not be less than the height of cross section shall not be less than 100 mm. 7.3.2 The section height of glass rib in full glass curtain wall shall be calculated ac-the following formulae. 7.3.3 The deflection of glass rib of full glass curtain wall under the action of characteristic value of wind load may be calculated according to the following formula. 7.4 Sealant Joint 7.4.1 For full glass curtain wall in which sealant joint transfers force, structural silicone sealant must be adopted as sealant joint.8 Structural Design of Point-supported Glass Curtain Wall8.1 Glass Panel 8.1.1 Quadrilateral glass panel may be supported on four points, or may be supported on six points with basis. Triangular glass panel may be supported on three points. The distance between the edge of supporting hole of glass panel and the edge of panel should not be less than 70 mm. 8.1.5 Under the action of wind load and earthquake normal to the plane of curtain wall, the stress and deflection of glass panels supported on four points shall meet the requirements stipulated in the following. 8.3 Supporting Structure 8.3.1 The supporting device in point-supported glass curtain wall should be calculated individually, glass panel should not be part of supporting structure. FEA method should be taken for calculation and analysis of complicated supporting structure. 8.3.2 Glass rib may be designed according to the provisions in section 7.3 in this code. 8.3.3 The design of supporting steel structure shall meet the requirements of relevant provisions in current national standard "Code for Design of Steel Structures" GB 50017. 8.3.7 The minimum value of pre-tensile force of tensile strut-cable system shall make the tensile rod or cable maintain definite pre-tensile force reservation under the action of design value of load.9 Fabrication9.1 General Requirement 9.1.1 Before Fabrication, glass curtain wall shall be checked with construction drawings of civil design, repeating survey shall be performed to the built main structure, and necessary adjustment shall be taken for design of glass curtain wall according to the survey result. 9.2 Aluminum Profiles 9.2.1 Fabrication of aluminum alloy elements for glass curtain wall shall meet the following requirements. 9.2.2 Fabrication of groove, mortise and tenon in aluminum alloy elements of glass curtain wall shall meet the following requirements; 9.3.4 Fabrication of steel profile mullion and transom shall meet the requirements of relevant provisions in current national standard "Code for Acceptance of Construction Quality of Steel Structures" GB 50205. JGJ INDUSTRIAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA UDC Technical code for glass curtain wall engineering Issued on. NOVEMBER 14, 2003 Implemented on. JANUARY 1, 2004 Issued by. Ministry of Construction of the People's Republic of ChinaTable of ContentsIntroduction... 6 Foreword... 8 1 General Provisions... 10 2 Terms and Symbols... 11 3 Materials... 17 4 Architectural Design... 24 5 Basic Requirement for Structural Design... 30 6 Structural Design of Framed Supported Glass Curtain Wall... 42 7 Structural Design of Full Glass Curtain Wall... 52 8 Structural Design of Point-supported Glass Curtain Wall... 56 9 Fabrication... 62 10 Construction... 76 11 Project Acceptance... 88 12 Maintenance and Repair... 95 Appendix A Design Value of Strength of Atmospheric Corrosion Resisting Steel... 98 Appendix B Design Value of Connection Strength of Steel Structure... 100 Appendix C Design of Pre-embedded Parts... 103 Explanation of Wording in This Code... 106 INDUSTRIAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA Technical code for glass curtain wall engineering Approval Department. Ministry of Construction of the People's Republic of China Implementation Date. January 1, 2004 Beijing 20031 General Provisions1.0.1 This code is formulated with a view to ensure safety and usability, advanced technique, economy and rationality in glass curtain wall project. 1.0.2 This code is applicable to the design, fabrication, Construction, project acceptance, maintenance and repair of glass curtain wall project of civilian building in non-seismic design and seismic design with earthquake fortification intensity of 6, 7, 8 degree. 1.0.3 In normal serviceability state, glass curtain wall shall keep good working performance. The curtain wall with seismic design shall work normally under the action of earthquake occurred frequently; it shall still work normally after repair under the action of fortification intensity earthquake; the framework of glass curtain wall shall not separate and fall under the action of earthquake occurred infrequently. 1.0.4 Quality control in whole process shall be implemented during design, fabrication, and construction of glass curtain wall project. 1.0.5 The materials, design, fabrication, construction and acceptance, shall comply not only with the requirements stipulated in this code, but also those in the current relevant ones of the nation.2 Terms and Symbols2.1 Terms 2.1.1 Building curtain wall Exterior enclosure structure or decorative structure of building, which comprises supporting structural system and panels, and has the ability to accommodate a certain a-mount of relevant displacement to the main structure, without bearing the action on main structure. 2.1.2 Composite curtain wall Building curtain wall which comprises different materials of panels (such as glass, metal, slate, etc.). 2.1.3 Glass curtain wall Building curtain wall which takes glass as panel material. 2.1.4 Inclined building curtain wall Glass curtain wall which is inclined at an angle larger than 75 degree and less than 90 degree to the horizontal.3 Materials3.1 General Requirement 3.1.1 Materials for glass curtain wall shall meet the requirements of the provisions in current national standards and of design. Material without relevant standard shall meet the design requirements, and have factory certification of qualification. 3.1.2 Weather resisting materials shall be selected for glass curtain wall. For metal material and metal installation kits, except stainless steel and atmospheric corrosion resisting steel, common steel shall be treated with surface hot dip galvanization or inorganic zinc-rich coating or other effective anti-corrosive measures, and aluminium alloy material shall be treated with surface anodic oxidation or electrophoretic painting or powder spraying or fluorocarbon paint spaying. 3.2 Aluminium Alloy Material 3.2.1 The corresponding chemical constitution to the brand of aluminium alloy profiles used in glass curtain wall shall comply with the requirements of relevant provisions in current national standard “Wrought Aluminium and Aluminium Alloys-Chemical Composition Limits” GB/T 3190.The quality of aluminium alloy profiles shall comply with the requirements of provisions in current national standard “Wrought Aluminium Alloy Profiles for Architecture” GB/T 5237, the dimension of profiles shall reach high precision class or ultrahigh precision class. 3.2.5 Accessories and fasteners used together with glass curtain wall shall comply with the requirements of as current national standards following. 3.3 Steel 3.3.1 The steel grade, brand, and qualification class of carbon structural steels and low alloy structural steels used for glass curtain wall shall comply with the requirements of the following current national standards and professional standards. 3.5 Weather Proofing Sealed Materials 3.5.1 Rubber production used in glass curtain wall should be ternary ethylene propylene rubber, chloroprene rubber and silicone rubber. 3.5.2 Sealed rubber strip shall comply with the requirements of provisions in current national standards "Rubber Building Gaskets - Materials for Preformed Solid Vulcanized Structural Gaskets-specification" HB/T 3099 and "Industrial Rubber Sheet" GB/T 5574.4 Architectural Design4.1 General Requirement 4.1.1 The type, structure and material of glass curtain wall shall be selected with comprehensive technical and economical analysis according to service function and elevation design. 4.1.2 Glass curtain wall shall be in harmony with the entire building and surrounding environment. 4.2 Requirements of Performance and Inspection 4.2.1 The performance design of glass curtain wall shall be carried out according to the type, height, shape of the building and the geography, climate, environment conditions at the building site. 4.2.2 The performance gradation of glass curtain wall for wind pressure resistance, air- tightness, water-tightness, heat preservation, sound insulation, shall comply with the requirements of provisions in current national standards "Gradation of Physical Performances for Building Curtain Walls" GB/T 15225. 4.2.3 The performance of wind pressure resistance of glass curtain wall shall meet the requirement in which under the action of characteristic value of wind load, its deformation shall not exceed the defined value, and no damage arises. 4.2.4 When heating, ventilation and air conditioning are required, the air-tightness performance of glass curtain wall shall not be lower than grade 3. 4.2.6 The performance of in-plane deformation of glass curtain wall in non-seismic design shall be designed with the limit value of elastic story drift rotation of main structure; in seismic design, it shall be designed with 3 times of the limit value of elastic story drift rotation of main structure. The matching dimensions of glass and aluminum frame shall also comply with the requirements in article 9.5.2 and 9.5.3. 4.2.11 The performance inspection shall be carried out by national authorized organization. The material, detail, construction method of inspection specimen shall be the same with those of practical project. 4.2.12 In the performance inspection, when some performance item does not meet the requirements stipulated because of installation defect, re-inspection is allowed after the installation technique is improved and defect is mended. The inspection report shall include content about the improvement, and the construction of glass curtain wall shall be performed according to the improved installation technique. When the performance inspection does not reach the stipulated range because of defect of design or materials, inspection shall be ceased, specimen shall be remade and new inspection shall be performed after design is revised or materials are changed. 4.3 Design of Constructional Detail5 Basic Requirement for Structural Design5.1 General Requirement 5.1.1 Glass curtain wall shall be designed as enclosure structure. 5.1.2 Glass curtain wall shall have adequate load-carrying capacity, rigidity, stability and capability to accommodate the relevant displacement to the main structure. 5.1.3 In the design of structure for glass curtain wall, the following action effects shall be calculated. 5.1.5 The elements in glass curtain wall shall be designed under the most unfavourable action among all the effect combinations. 5.1.6 Load-carrying capacity and deflection of structural elements of glass curtain wall shall be checking computed according to the following provisions. 5.2 Mechanical Properties of Materials 5.2.1 Design value of strength of glass shall comply with the values in Table 5.2.1. 5.2.2 Design value of strength of aluminum profiles shall comply with the values in Table 5.2.2. 5.3 Load and Earthquake Action 5.3.1 The characteristic value of weight density of materials of glass curtain wall shall be taken according to the stipulation in Table 5.3.1. 5.3.2 The characteristic value of wind load on glass curtain wall shall be calculated according to the following formula, which shall not be less than 1.0kN/m2. where 5.3.4 The characteristic value of distributed horizontal earthquake action normal to the plane of glass curtain wall shall be calculated according to the following formula. 5.3.6 The characteristic value of earthquake action, which the supporting structure, connection parts and anchor parts bear, shall include the characteristic value of earthquake action transferred from elements of glass curtain wall and the characteristic value of earthquake action caused from its own characteristic value of gravity load. 5.4 Action Effect Combination 5.4.1 When elements of curtain wall are designed for ultimate limit state of load- carrying capacity, the action effect combination shall meet the following requirements;6 Structural Design of Framed Supported Glass Curtain Wall6.1 Glass 6.1.1 The thickness of single sheet glass of frame supported glass curtain wall shall not be less than 6 mm, the thickness of a single sheet of laminated glass should not be less than 5 mm. The difference between the thickness of a single sheet of laminated glass and insulating glass should not be larger than 3mm. 6.1.5 Insulating glass shall be calculated according to the following provisions. 6.2 Transom 6.2.1 The thickness of main bearing part of transom section shall meet the following requirements.7 Structural Design of Full Glass Curtain Wall7.1 General Requirement 7.1.1 Full glass curtain wall in which the height of glass exceeds the limit values in Table 7.1.1 shall be suspended from main structure. 7.1.6 The surface of panel in full glass curtain wall shall not be contact directly with other rigid materials. Clearance between panel surface and decoration surface or structural surface shall not be less than 8mm, which shall be sealed with sealant. 7.1.7 Hanging clamp shall meet the requirements of relevant provisions in current professional standard "The Support Device of Suspended Glass Curtain Wall" JG 139. 7.1.8 The glass in point-supported glass curtain wall shall meet the requirements stipulated in article 4.4.2 and article 4.4.3 in this code. 7.2 Panel 7.2.1 The thickness of panel glass should not be less than 10 mm; the thickness of single sheet of laminated glass shall not be 8 mm. 7.3 Glass Rib 7.3.1 The thickness of cross section of full glass curtain wall shall not be less than the height of cross section shall not be less than 100 mm. 7.3.2 The section height of glass rib in full glass curtain wall shall be calculated ac-the following formulae. 7.3.3 The deflection of glass rib of full glass curtain wall under the action of characteristic value of wind load may be calculated according to the following formula. 7.4 Sealant Joint 7.4.1 For full glass curtain wall in which sealant joint transfers force, structural silicone sealant must be adopted as sealant joint.8 Structural Design of Point-supported Glass Curtain Wall8.1 Glass Panel 8.1.1 Quadrilateral glass panel may be supported on four points, or may be supported on six points with basis. Triangular glass panel may be supported on three points. The distance between the edge of supporting hole of glass panel and the edge of panel should not be less than 70 mm. 8.1.5 Under the action of wind load and earthquake normal to the plane of curtain wall, the stress and deflection of glass panels supported on four points shall meet the requirements stipulated in the following. 8.3 Supporting Structure 8.3.1 The supporting device in point-supported glass curtain wall should be calculated individually, glass panel should not be part of supporting structure. FEA method should be taken for calculation and analysis of complicated supporting structure. 8.3.2 Glass rib may be designed according to the provisions in section 7.3 in this code. 8.3.3 The design of supporting steel structure shall meet the requirements of relevant provisions in current national standard "Code for Design of Steel Structures" GB 50017. 8.3.7 The minimum value of pre-tensile force of tensile strut-cable system shall make the tensile rod or cable maintain definite pre-tensile force reservation under the action of design value of load.9 Fabrication9.1 General Requirement 9.1.1 Before Fabrication, glass curtain wall shall be checked with construction drawings of civil design, repeating survey shall be performed to the built main structure, and necessary adjustment shall be taken for design of glass curtain wall according to the survey result. 9.2 Aluminum Profiles 9.2.1 Fabrication of aluminum alloy elements for glass curtain wall shall meet the following requirements. 9.2.2 Fabrication of groove, mortise and tenon in aluminum alloy elements of glass curtain wall shall meet the following requirements; 9.3.4 Fabrication of steel profile mullion and transom shall meet the requirements of relevant provisions in current national standard "Code for Acceptance of Construction Quality of Steel Structures" GB 50205. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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