Detail of JGJ 3-2002

Introduction of JGJ 3-2002

1.0.1 This specification is formulated with a view to reasonably use concrete structure (including mixed structure of steel and concrete) in the tall building projects, so as to realize safety, usability, state-of-the-art technology, and cost-effectiveness and construction convenience. 1.0.2 This Specification is applicable to the civil tall buildings, 10-story or higher, or whose height exceeds 28m. The applicable tall buildings hereof can be either in non-aseismic design or in the aseismic design under 6-9° seismic protection intensity. The maximum height and structure type for the applicable buildings shall be in accordance with relevant provisions of this Specification. This specification is not applicable to the tall buildings built on hazardous locations. 1.0.3 The seismic protection intensity for the tall building must be determined according to those documents (drawings) examined/approved and awarded by the specific national authorities. Generally, the seismic protection intensity may be selected from the basic seismic intensities specified by the Seismic Intensity Zoning Plan of China; for those areas where the seismic protection zoning plans have been prepared, the seismic protection can be implemented according to approved seismic protection intensity or the designed seismic ground motion. 1.0.4 The tall buildings with aseismic design shall be classified into three seismic protection types, Type A, B and C, according to the significance of the functions for use. Classification of the seismic protection types shall be in accordance with relevant regulations specified in the current national standard "Standard for Classification of Seismic Protection of Buildings" GB 50223 and "Code for Seismic Design of Buildings" GB 50011. 1.0.5 Structural design for tall building shall pay attention to conceptual design, structural lectotype and regularity for horizontal/facade Layout, and shall preferential select a structural system that has favorable aseismic and wind resistance properties and strengthen structure measures. In the aseismic design, integral seismic performance for the structure shall be adopted, so as to make the entire structure be provided with necessary bearing capacity, rigidity and ductility. 1.0.7 Not only the requirements stipulated in this Specification, but also those in the current relevant compulsory ones of the nation shall be complied with by the design and construction for concrete structure of tall building.

Contents of JGJ 3-2002

Foreword II 1 General provision 2 Terminologies and symbols 2.1 Terminologies 2.2 Symbols 3 Load and earthquake effect 3.1 Vertical load 3.2 Wound load 3.3 Earthquake effect 4 The general requirement for structure design 4.1 General requirement 4.2 Applicable height and depth-width ratio of the buildings 4.3 Structural plan layout L/B L/B 4.4 Vertical layout of structure 4.5 Floor structure 4.6 Requirement for horizontal displacement limitation and comfort level 4.7 Expression of design for member bearing capacity 4.8 Aseismic grades 4.9 Structure requirement 5 Calculation and analysis of the structure 5.1 General requirements 5.2 Calculating parameter 5.3 Treatment of design schedule 5.4 Gravity second-order effect and structural stability 5.5 Calculation for the elastic-plastic deformation of weak story 5.6 Combination of load effect and earthquake effect 6 Frame structure design 6.1 General requirements 6.2 Section design 6.3 Construction requirement for frame girder 6.4 Construction requirements for frame columns 6.5 Connection and anchorage of reinforced bars 7 The structure design of shear wall 7.1 General requirements 7.2 Section design and construction 8 Design of frame-shearwall structure 8.1 General requirements 8.2 Section design and construction 9 Design of tube structure 9.1 General requirements 9.2 Frame-corewall structure 9.3 Tube-in-tube structure 10 Structure designs of complex tall buildings 10.1 General requirements 10.2 The structure of tall buildings with transfer story 10.3 The structure of tall buildings with belt members 10.4 Split-level structure 10.5 Siamese structure 10.6 Multi-tower structure 11 Design of mixed structure 11.1 General requirements 11.2 Structural arrangement and structural design 11.3 Structure Requirement for Section Steel Concrete Component 12 Foundation design 12.1 General requirements 12.2 Raft foundation 12.3 Coffer foundation 12.4 Pile foundation 13 High-rise building structure constructions 13.1 General requirements 13.2 Construction survey 13.3 Formwork Engineering 13.4 Reinforcing work 13.5 Concrete formwork 13.6 Precast element installation 13.7 Deep foundation construction 13.8 Work place safety requirement Annex A Shape Coefficients of Wind Load Annex B the Base Shear Method for Calculation of Structural Horizontal Earthquake Action Annex C Section aseismic checking of frame column's node Annex D Calculation of Walling Stability Annex E the Regulations on Lateral Rigidity of the Transfer Story's Upper and Lower Structure Explanation of Wording in this code