1.0.1 This Specification is formulated with a view to implementing the national technical and economic policies in the winter construction of building engineering to be of advanced technology, reasonable in economy, safe and practical with guaranteed quality, energy conservation and environmental protection.
1.0.2 This Specification is applicable to the winter construction of industrial and civil buildings and general structures.
1.0.3 The principle for classification of time limit of winter construction in this Specification is: according to local statistical meteorological data of many years, if the outdoor daily average air temperature is continuously less than 5℃ for 5d, then it shall become the winter construction period; if the outdoor daily average air temperature is continuously larger than 5℃, then the winter construction period shall end.
1.0.4 The special scheme for winter construction shall be developed for works and projects in winter construction; any issue which may not meet winter construction requirements shall be timely researched and solved jointly with the design organization.
1.0.5 The winter construction of building engineering shall not only meet this Specification, but also shall comply with those in the current relevant ones of the Nation.
1 General Provisions
2 Terms
3 Building Subgrade and Foundation Works
3.1 General Requirements
3.2 Earthwork
3.3 Ground Treatment
3.4 Pile Foundation
3.5 Shoring of Foundation Pit
4 Masonry Works
4.1 General Requirements
4.2 Additive Method
4.3 Tent Healing Method
5 Steel Bar Works
5.1 General Requirements
5.2 Welding of Steel Bars at Subzero Temperature
6 Concrete Works
6.1 General Requirements
6.2 Heating, Mixing, Transportation and Placing of Raw Materials of Concrete
6.3 Concrete Curing by Thermos Method and Comprehensive Thermos Method
6.4 Concrete Curing by Steam Heating Method
6.5 Concrete Curing by Electrical Heat Method
6.6 Concrete Curing by Tent Healing Method
6.7 Curing Method at Subzero Temperature
6.8 Sulphoaluminate Cement Concrete
6.9 Concrete Quality Control and Inspection
7 Thermal Insulation and Roof Waterproof Works
7.1 General Requirements
7.2 Construction of External Thermal Insulation Works
7.3 Construction of Roof Thermal Insulation Works
7.4 Construction of Roof Waterproofing Works
8 Building Decoration Works
8.1 General Requirements
8.2 Plastering Works
8.3 Painting, Swabbing, Paperhanging and Glass Works
9 Steel Structure Works
9.1 General Requirements
9.2 Materials
9.3 Steel Structure Fabrication
9.4 Steel Structure Installation
10 Installation of Concrete Members
10.1 Stacking and Transportation of Member
10.2 Member Hoisting and Erection
10.3 Connection and Calibration of Member
11 Maintenance of Overwintering Works
11.1 General Requirements
11.2 Works under Construction
11.3 Stopped and Suspended Works
Appendix A Heat Engineering Calculation of Concrete
Appendix B Calculation of Concrete Early Strength with Maturity Method
Appendix C Calculation of Soil Thermal Insulation and Frost Prevention
Explanation of Wording in This Specification
List of Quoted Standards
