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Performaflces and damages to steel structures during the 1995 Hyogoken--Nanbu earthquake

机译:1995年兵库县-南埠地震期间钢结构的性能和损坏

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Described herein are the performances of and damages to steel bridges and viaducts during the Hyogoken--Nanbu earthquake in relation to past design specifications. A particular emphasis is placed on the performance of steel bridge piers and their buckling. low-cycle fatigue and brittle crack failures. Numerical simulation of typical damage such as elephant-foot buckling, failure of bearing devices and dynamic interaction of steel piers from adiacent reinforced concrete piers is carried out and possible causes are dis- cussed. Finally, concluding remarks on the key concepts for earth' quake-resistant design of bridges, several recommendations for the improvement of steer pier design and comments on future research needs are made.
机译:本文描述的是兵库县-南埠地震期间钢桥和高架桥相对于过去设计规范的性能和损坏情况。特别强调的是钢桥墩的性能及其屈曲。低周疲劳和脆性裂纹失效。对典型破坏进行了数值模拟,例如象脚屈曲,轴承装置故障以及钢筋混凝土桥墩与动态墩的动态相互作用,并讨论了可能的原因。最后,总结了桥梁抗震设计的关键概念,提出了一些改进转向墩设计的建议,并对未来的研究需求进行了评论。

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