Design of CFST Components and Connections for Transportation Structures: Course Module
| 项目名称： | Design of CFST Components and Connections for Transportation Structures: Course Module |
| 摘要： | Over the past decade, significant research has been conducted on concrete-filled steel tubes (CFSTs) and their connections for use in regions of low to high seismicity. CFSTs have application to the superstructure (piers) and substructure (deep foundations). Both CFST components and connections have been thoroughly evaluated using experimental and numerical (high-resolution, finite element modeling) research approaches. In addition, system-level evaluations have been conducted. The results from the work include new design expressions that have been implemented in AASHTO as well as state department of transportation design manuals. Advantages of the system included: (i) larger strength and stiffness for a given diameter in comparison with conventional RC construction, (ii) facilitation of accelerated bridge construction, (iii) improved constructability, (iv) use of environmentally-friendly (low cement) concrete for the concrete fill, and (v) improved seismic performance through damage mitigation. The course module will provide an overview of the research conducted, design expressions for the CFST components and connections, nonlinear modeling techniques, system-level response to vertical and lateral demands including earthquake and tsunami loading, and design examples. |
| 状态： | Active |
| 资金： | 20000 |
| 资助组织： | Office of the Assistant Secretary for Research and Technology |
| 管理组织： | Accelerated Bridge Construction University Transportation Center (ABC-UTC) |
| 执行机构： | University of Washington, Seattle |
| 主要研究人员： | Dawn, E Lehman |
| 开始时间： | 20181201 |
| 预计完成日期： | 20201231 |
| 实际结束时间： | 0 |
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