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JGJ 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/JGJ102-2003
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 China
Table of Contents
Introduction... 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 2003
1 General Provisions
1.0.1 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 Symbols
2.1 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 Materials
3.1 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 Design
4.1 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 Detail
5 Basic Requirement for Structural Design
5.1 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 Wall
6.1 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 Wall
7.1 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 Wall
8.1 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 Fabrication
9.1 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 China
Table of Contents
Introduction... 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 2003
1 General Provisions
1.0.1 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 Symbols
2.1 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 Materials
3.1 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 Design
4.1 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 Detail
5 Basic Requirement for Structural Design
5.1 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 Wall
6.1 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 Wall
7.1 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 Wall
8.1 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 Fabrication
9.1 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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