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首页> 外文会议>Beijing Jiaotong University;International conference on railway engineering;Beijing Key Laboratory of Track Engineering;China Railway Society >SEISMIC DESIGN OF PIERS AND ANALYSIS OF RAILWAY SIMPLY-SUPPORTED GIRDER BRIDGES IN THE RESPONSE OF ELASTIC RESPONSE SPECTRUM
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SEISMIC DESIGN OF PIERS AND ANALYSIS OF RAILWAY SIMPLY-SUPPORTED GIRDER BRIDGES IN THE RESPONSE OF ELASTIC RESPONSE SPECTRUM

机译：弹性响应谱响应的桥墩抗震设计及铁路简支梁桥分析

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摘要

In this paper, the widely used railway 24 m-span simply-supported girder bridges, whose pier size is 3 mx3 m, are studied.The single pier linear elastic analysis model using finite element analysis software SAP2000 is established.Considering ten different shear span ratio, such as 2, 3, 4, 5,6, 7, 8, 9, 10 and 12, the elastic response spectrum response analysis is conducted.By the model, the pier bottom axial forces and pier bottom moments used for reinforcement calculation are obtained.At last, the change laws of minimum reinforcement under the conditions of 7, 8, 9 seismic intensity and the site classification of Ⅰ, Ⅱ, Ⅳ are concluded.
机译：本文研究了桥墩尺寸为3 mx3 m的广泛使用的铁路24 m跨简支梁桥，建立了使用有限元分析软件SAP2000的单墩线性弹性分析模型，考虑了十种不同的剪力跨度比例，如2,3,4,5,6,7,8,9,10和12进行弹性响应谱响应分析。通过模型，墩底轴向力和墩底矩用于钢筋计算得出了在7、8、9地震烈度条件下最小配筋的变化规律，并确定了Ⅰ，Ⅱ，Ⅳ类位点。

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