DURABILITY DESIGN FOR CONCRETE BRIDGE STRUCTURE BASED ON SUSTAINED LOADS IN MARINE ENVIRONMENT

摘要：

　　In this paper, based on accelerated testing indoors, under the action of bending tensile stress on a marine high-performance concrete chloride ion diffusion coefficient, the results show that: Subjected to bend under the action of tensile stress and do not withstand the test piece chloride diffusion coefficient increases with increasing stress levels, different tensile stress and does not bear the stress of the concrete chloride ion diffusion coefficient ratio(DR/D0)exponential relationship with the stress level(η).In addition, addition, for a domestic Bridge, preliminary design to determine typical parameters of components and their environment is proposed to consider the durability of concrete structure load control index calculation method, to establish a design life-chloride ion diffusion coefficient controlled targets the correspondence between, for similar projects designed to provide a reference durability.

关键词： Bending tensile stress Diffusion coefficient Durability design Stress level

作者: Jianbo Xiong Dagen Su Mingjun Wang Shengnian Wang

作者单位: Department of Materials Science and Engineering, South China University of Technology,Guangzhou, Gua CCCC Fourth Harbor Engineering Institute Co., Ltd., Key Laboratory of Harbor & Marine Structure Dura

会议类型: 国际会议

会议名称: The 3rd International Conference on Service Life Design for Infrastructure(2014第三届基础设施服役寿命设计国际会议)

会议地点: 珠海

会议语种:英文

页码: 503-510

在线出版日期: 2014-10-15（万方平台首次上网日期，不代表论文的发表时间）