详情

Design and Numerical Evaluation of GFRP Reinforcement for Concrete Bridge Railing

项目名称：	Design and Numerical Evaluation of GFRP Reinforcement for Concrete Bridge Railing
摘要：	The aim of this proposal is to provide design and numerical evaluation of glass fiber reinforced polymer (GFRP) bars for concrete bridge railing. The “steel-free” concrete bridge structure concepts have gained wider acceptance in current practice due to reduced material cost and validated field performance from the past researches. However, on-site bending is still not possible for GFRP bars, which causes increase in the number of GFRP bars used in construction. Alternatively, headed end GFRP bars may address this problem. Existing researches have conducted both experimental and numerical modeling investigations to achieve an optimum design for GFRP reinforcement in concrete structures, especially railings. It was suggested that the headed-end GFRP bars can provide sufficient resistance, however, with an added cost. Therefore, anchorage GFRP bars with modified bending radius has also been suggested to achieve same resistance with lower cost. Considering the on-going effort in seeking the optimized GFRP configurations for concrete bridge railings, the preliminary design and numerical validation is critical in finding the best design prior to the field implementation of GFRP bars for concrete bridge railings in the state of Missouri.
状态：	Active
资金：	170000
资助组织：	Office of the Assistant Secretary for Research and Technology
项目负责人：	Stearns, Amy
执行机构：	Missouri University of Science & Technology, Rolla
开始时间：	20210101
预计完成日期：	20220630
主题领域：	Bridges and other structures；Design；Highways；Materials