DURABILITY DESIGN METHOD OF CONCRETE STRUCTURES

摘要：

For the main problems existing in durability design of concrete structures, a durability design method, i. e., durability factor method is proposed. Based on the proposed method, durability optimum design is discussed from three levels: materials, members and structure system. For concrete materials, the general efficacy coefficients including chloride iron permeation coefficient, concrete compressive strength and workability were taken. The minimum average yearly investment was used to optimize durability design for members level with a full consideration of constrain conditions including carrying capacity of sections, deformation, the maximum crack width, construction requirement, and so on. And force-pass- tree-based durability contribution coefficient was considered as optimum design for concrete structures. The presented method, which emphasizes the importance of concrete structure system, level design, couple action of infected durability factors such as environment, load and service life cycle cost analysis for durability design, has the advantages of explicit concept and simple form.

关键词： Concrete structures durability design method durability factor general efficacy coefficient maximum verage yearly investment difference durability contribution coefficient

作者: P. H. Zhu W. L. Jin

作者单位: Department of Civil Engineering, Yangzhou Politechnic College, Yangzhou, China Institute of Structur Department of Civil Engineering, Yangzhou Politechnic College, Yangzhou, China

会议类型: 国际会议

会议名称: 2007年土木工程结构创新与可持续发展国际会议(The International Symposium on Innovation & Sustainability of Structures in Civil Engineering)

会议地点: 上海

会议语种:英文

页码: 920-928

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）