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Safety-Based Bridge-Overstress Criteria for Nondivisible Loads; Final research rept
| 题名： | Safety-Based Bridge-Overstress Criteria for Nondivisible Loads; Final research rept |
| 作者： | Fu, G.; Hag-Elsafi, O. |
| 关键词： | Highway bridges; Vehicle weight limits; Licenses; State highway departments; State laws; New York; Safety engineering; Bridge safety; Heavy trucks |
| 摘要： | Most states face increasing pressure to issue more permits for heavier overweight trucks, and currently use the AASHTO rating concept (with or without an overstress criterion) in checking these loads. That bridge-rating procedure, however is intended to cover only normal traffic, and the basis for these overstress criteria involved is not well documented. This report discusses current New York State practice for checking overweight permits. A new permit-issuance procedure for checking overloads is then proposed for permits. A new permit issuance procedure for checking overloads is then proposed for both annual and trip permits for nondivisible loads, based on principles of uniform bridge safety. This procedure may be included in bridge-evaluation specifications. |
| 总页数： | 48p |
| 报告类型： | 科技报告 |
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