不同场地高铁隔震桥梁概率地震需求模型比较

吴迪; 熊焱; 蒋国平; 吴成亮; 冼巧玲; 徐丽

doi:10.6052/j.issn.1000-4750.2019.05.S006

不同场地高铁隔震桥梁概率地震需求模型比较

吴迪^1,,
熊焱^2, ,,
蒋国平^3,,
吴成亮^4,,
冼巧玲^1,,
徐丽^1,

1.
广东省地震工程与应用技术重点实验室，广东，广州 510006
2.
华南理工大学亚热带建筑科学国家重点实验室，广东，广州 510640
3.
福建江夏学院工程学院，福建，福州 350108
4.
鑫拓力工程技术有限公司，湖北，武汉 430073

基金项目: 国家重点研发计划项目(2017YFC0703600)；国家自然科学基金项目(51778160, 51578168)；广东省科技计划重点项目(2018B02028003)；广州市科技计划项目(201707010258)；广州市教育局高校科研项目(201831826)

详细信息

作者简介:
吴　迪(1978−)，男，江西南昌人，副研究员，博士，硕导，从事结构工程研究(E-mail: 11795234@qq.com)

蒋国平(1974−)，男，湖南长沙人，教授，博士，硕导，从事结构工程研究(E-mail: 63599143@qq.com)

吴成亮(1974−)，男，湖北武汉人，高工，硕士，从事结构工程研究(E-mail: 233683368@qq.com)

冼巧玲(1962−)，女，广东南海人，教授，博士，从事结构工程研究(E-mail: 2354696547@qq.com)

徐　丽(1971−)，女，河南新野人，副研究员，博士，硕导，从事结构工程研究(E-mail: 983309485@qq.com)

通讯作者:
熊　焱(1978−)，女，江西南昌人，副教授，博士，硕导，从事结构工程研究(E-mail: xyan@scut.edu.cn)

中图分类号: U442.55
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出版历程
- 收稿日期: 2019-05-19
- 修回日期: 2020-01-21
- 网络出版日期: 2020-05-31
- 刊出日期: 2020-05-31

COMPARISON OF PROBABILISTIC SEISMIC DEMAND MODEL FOR HIGH-SPEED RAILWAY ISOLATED RAILWAY BRIDGE IN DIFFERENT SITES

1.
Key Laboratory of Seismic Engineering and Applied Technology in Guangdong Province, Guangzhou 510006, China
2.
State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China
3.
Fujian Jiangxia University, Fuzhou 350108, China
4.
Xintuoli Engineering & Technology Co., Wuhan 430073, China

摘要

摘要: 根据我国典型高速铁路(高铁)桥梁摩擦摆隔震支座的力学性能试验和桥梁结构设计参数, 建立高铁隔震梁桥有限元模型。根据不同场地的地震反应谱特征，提出不同场地条件下高铁隔震桥梁概率地震需求模型的比较方法。根据上述研究方法和分析结果，获得场地条件对典型高铁隔震桥梁概率需求模型的影响规律。
- 高铁桥梁 /
- 场地类别 /
- 隔震 /
- 概率地震需求 /
- 有限元方法
Abstract: According to the test of mechanical property of friction pendulum isolators and design parameters of a typical Chinese high-speed railway bridge, the finite element method is used to model a general simple support beam bridge in Chinese high-speed railway. Based on the characteristics of the response spectrum in different sites, a comparative method in the probability seismic demand model of a high-speed railway isolation bridge under different site conditions has been put forward. By means of the methods proposed, the effect law of site conditions on the probability seismic demand model of a high-speed railway isolation bridge has been studied.
- high-speed railway bridge /
- site condition /
- isolation /
- probabilistic seismic demand /
- finite element method

HTML全文

图 1 桥墩和配筋布置 /cm

Figure 1. Dimension of pier and arrangement of reinforcement

下载: 全尺寸图片幻灯片

图 2 隔震桥梁有限元模型

Figure 2. Finite element model of isolated bridge

下载: 全尺寸图片幻灯片

图 3 不同场地类别的地震加速度反应谱

Figure 3. Response spectrum of different site categories

下载: 全尺寸图片幻灯片

图 4 5种场地类别的结构概率地震需求模型

Figure 4. Demand model for 5 site condition

下载: 全尺寸图片幻灯片

图 5 不同场地类别的结构概率地震需求模型比较

Figure 5. Comparison of demand model for different classifications of site

下载: 全尺寸图片幻灯片

表 1 产品设计参数^[11]

Table 1 Product design parameters

竖向承载力/kN	水平限位力/kN	位移限值/mm	球面半径/mm	摩擦系数
5500	1650	±100	3000	0.03

下载: 导出CSV

表 2 场地类别划分^[11-12]

Table 2 Classification of sites

场地类别	A	B	C	D	E
平均剪切波速V_s/(m/s)	>1500	1500~760	760~360	360~180	<180

下载: 导出CSV

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