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Proposed Modifications to AASHTO Culvert Load Rating Specifications
| 题名： | Proposed Modifications to AASHTO Culvert Load Rating Specifications |
| 责任者： | National Academies of Sciences, Engineering, and Medicine; Transportation Research Board; National Cooperative Highway Research Program |
| 关键词： | Transportation and Infrastructure — Bridges and Other Structures Transportation and Infrastructure — Design |
| 学科分类： | 暂无分类 |
| 摘要： | Over the past decade, significant state and federal resources have been expended to develop a state‐of-the-art set of reliability‐based bridge design and load rating specifications, including Load and Resistance Factor Design (LRFD) and Load and Resistance Factor Rating (LRFR). However, these design and rating methods were developed for larger bridge structures, and may result in overly conservative ratings when applied to buried culverts. Of the more than 600,000 records in the National Bridge Inventory, over 130,000 represent culverts, thus constituting a significant proportion of the nation’s bridge infrastructure. The TRB National Cooperative Highway Research Program's Web-Only Document 268: Proposed Modifications to AASHTO Culvert Load Rating Specifications proposes modifications to the culvert load rating specifications in the Manual for Bridge Evaluation and revises the AASHTO LRFD Bridge Design Specifications accordingly. |
| 出版机构： | Transportation Research Board |
| 提交日期： | 2019 |
| 报告类型： | 科技报告 |
| 资源类型： | 科技（咨询、行业）报告 |
| 初始创建时间： | 2019 |
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