题名: |
EVALUATION OF GLASS FIBER REINFORCED PLASTIC DOWELS AS LOAD TRANSFER DEVICES IN HIGHWAY PAVEMENT SLABS. |
作者: |
Davis-D; Porter-ML; Brink-M (Editor) |
关键词: |
CONCRETE-PAVEMENTS; DIAMETER-; DOWELS-FASTENERS; GLASS-FIBER-REINFORCED-PLASTICS; HIGHWAYS-; JOINTS-ENGINEERING; LOAD-TRANSFER; SLABS-; SPACING- |
摘要: |
The use of dowel bars, fabricated from glass fiber reinforced plastic (GFRP), as load transfer devices in highway pavement slabs is a possible solution to the corrosion problems related to the current use of steel dowels. The material properties of GFRP are considerably different from those of steel. Therefore, to keep material stresses within permissible limits, the diameter and spacing used for steel dowels is no longer valid for GFRP dowels. This paper presents a design procedure for determining the required diameter and spacing for GFRP dowels based on the load transferred through the critical dowel. Essentially, the diameter and spacing requirements for GFRP dowels is based on an equivalent deflection for a joint containing steel dowels spaced at the standard 300 mm (12 in.). GFRP dowels appear to be a feasible solution as long as the diameter of the dowel is increased, spacing decreased, or a combination of both. |
总页数: |
Conference Title: Crossroads 2000. Location: Ames, Iowa. Sponsored by: Iowa State University and Iowa Department of Transportation. Held: 19980819-19980820. 1998. pp78-81 (3 Fig., 2 Tab., 8 Ref.) |
报告类型: |
科技报告 |