Tham khảo tài liệu 'structure steel design's handbook 2009 part 8', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | SECTION 6 BUILDING DESIGN CRITERIA R. A. LaBoube PE. Professor of Civil Engineering University of Missouri-Rolla Rolla Missouri Building designs generally are controlled by local or state building codes. In addition designs must satisfy owner requirements and specifications. For buildings on sites not covered by building codes or for conditions not included in building codes or owner specifications designers must use their own judgment in selecting design criteria. This section has been prepared to provide information that will be helpful for this purpose. It summarizes the requirements of model building codes and standard specifications and calls attention to recommended practices. The American Institute of Steel Construction AISC promulgates several standard specifications but two are of special importance in building design. One is the Specification for Structural Steel Buildings Allowable Stress Design ASD and Plastic Design. The second is the Load and Resistance Factor Design LRFD Specification for Structural Steel Buildings which takes into account the strength of steel in the plastic range and utilizes the concepts of first-order theory of probability and reliability. The standards for both ASD and LRFD are reviewed in this section. Steels used in structural applications are specified in accordance with the applicable specification of ASTM. Where heavy sections are to be spliced by welding special material notch-toughness requirements may be applicable as well as special fabrication details see Arts. and . BUILDING CODES A building code is a legal ordinance enacted by public bodies such as city councils regional planning commissions states or federal agencies establishing regulations governing building design and construction. Building codes are enacted to protect public health safety and welfare. A building code presents minimum requirements to protect the public from harm. It does not necessarily indicate the most .
