单肢转双肢薄壁高墩桥梁的抗震性能

U442.55; 为研究不同桩土模型对单肢转双肢薄壁高墩的地震响应差异,以及单肢转双肢薄壁高墩与双肢薄壁高墩地震响应的不同,以一座采用单肢转双肢薄壁高墩的大跨径桥梁为例,采用有限元软件Midas Civil建立三维动力分析模型,分析了直接嵌固、等效嵌固和六弹簧法3种桩土效应对桥墩抗震性能的影响.结果表明:对单肢转双肢高墩桥梁进行地震响应分析时,忽略桩土效应的计算结果并不总是偏于安全的,采用等效嵌固法模型的计算结果则是偏于安全的.三向地震作用下,单肢转双肢高墩的墩顶顺桥向极限位移值小于传统的双肢薄壁高墩的墩顶位移....

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Published in深圳大学学报（理工版） Vol. 37; no. 2; pp. 151 - 157
Main Authors 卢尧, 鞠秀颖, 杨明, 常山, 袁鹏飞, 田林杰
Format Journal Article
LanguageChinese
Published 东南大学交通学院,江苏南京,210096%中国路桥工程有限责任公司,北京,100011 30.03.2020
Subjects
大跨径桥梁
桥涵工程
桩-土相互作用
地震响应
单肢转双肢
薄壁高墩
Online AccessGet full text
ISSN1000-2618
DOI10.3724/SP.J.1249.2020.02151

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Abstract U442.55; 为研究不同桩土模型对单肢转双肢薄壁高墩的地震响应差异,以及单肢转双肢薄壁高墩与双肢薄壁高墩地震响应的不同,以一座采用单肢转双肢薄壁高墩的大跨径桥梁为例,采用有限元软件Midas Civil建立三维动力分析模型,分析了直接嵌固、等效嵌固和六弹簧法3种桩土效应对桥墩抗震性能的影响.结果表明:对单肢转双肢高墩桥梁进行地震响应分析时,忽略桩土效应的计算结果并不总是偏于安全的,采用等效嵌固法模型的计算结果则是偏于安全的.三向地震作用下,单肢转双肢高墩的墩顶顺桥向极限位移值小于传统的双肢薄壁高墩的墩顶位移.
AbstractList U442.55; 为研究不同桩土模型对单肢转双肢薄壁高墩的地震响应差异,以及单肢转双肢薄壁高墩与双肢薄壁高墩地震响应的不同,以一座采用单肢转双肢薄壁高墩的大跨径桥梁为例,采用有限元软件Midas Civil建立三维动力分析模型,分析了直接嵌固、等效嵌固和六弹簧法3种桩土效应对桥墩抗震性能的影响.结果表明:对单肢转双肢高墩桥梁进行地震响应分析时,忽略桩土效应的计算结果并不总是偏于安全的,采用等效嵌固法模型的计算结果则是偏于安全的.三向地震作用下,单肢转双肢高墩的墩顶顺桥向极限位移值小于传统的双肢薄壁高墩的墩顶位移.
Author 常山
杨明
袁鹏飞
田林杰
鞠秀颖
卢尧
AuthorAffiliation 东南大学交通学院,江苏南京,210096%中国路桥工程有限责任公司,北京,100011
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CHANG Shan
TIAN Linjie
JU Xiuying
YUAN Pengfei
LU Yao
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Keywords 大跨径桥梁
桥涵工程
桩-土相互作用
地震响应
单肢转双肢
薄壁高墩
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Snippet U442.55; 为研究不同桩土模型对单肢转双肢薄壁高墩的地震响应差异,以及单肢转双肢薄壁高墩与双肢薄壁高墩地震响应的不同,以一座采用单肢转双肢薄壁高墩的大跨径桥梁为例,...
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Title 单肢转双肢薄壁高墩桥梁的抗震性能
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