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DIFFERENTIAL SETTLEMENTS AND INELASTIC RESPONSE IN STEEL BRIDGE BEAMS.
| 题名： | DIFFERENTIAL SETTLEMENTS AND INELASTIC RESPONSE IN STEEL BRIDGE BEAMS. |
| 作者： | Hearn-G; Nordheim-K |
| 关键词： | DIFFERENTIAL-SETTLEMENT; BRIDGE-ABUTMENTS; EMBANKMENTS-; MITIGATION-; SHALLOW-FOUNDATIONS; SOIL-STRUCTURE-INTERACTION; TOLERANCES-; BRIDGE-SUPERSTRUCTURES; INELASTIC-ANALYSIS; STEEL-BEAMS; ROTATION- |
| 摘要： | A proposed method for mitigation of pavement faults at bridge abutments (the "bump at the end of the bridge") is the use of shallow foundations. Abutments on shallow foundations are expected to settle compatibly with embankments and thus to minimize pavement faults. Allowing bridge abutments to settle may reduce faults, but it creates a demand for tolerance of differential settlement in bridge superstructures. Current guidelines for tolerable differential settlement of bridges are empirical only, and the application of elastic analysis of bridge superstructures to determine tolerance of settlement has not produced satisfactory results. Inelastic analysis of steel bridge beams was applied to the computation of tolerable differential settlement. Tests of inelastic rotation capacity of steel beams were reviewed and compared with the results of inelastic analyses. A model of tolerable inelastic rotation capacity in steel beams is proposed. |
| 总页数： | Transportation Research Record. 1998. (1633) pp68-73 (6 Fig., 3 Tab., 16 Ref.) |
| 报告类型： | 科技报告 |
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