[1]原贺军,解惠婷,曹均锋.土层分层厚度对场地地表地震动参数的影响[J].防灾科技学院学报,2016,18(03):30-37.
 Yuan Hejun,Xie Huiting,Cao Junfeng.Effect of Soil Layer Thickness on the GroundMotion Parameters of Site Surface[J].JOURNAL OF INSTITUTE OF DISASTER PREVENTION,2016,18(03):30-37.
点击复制

土层分层厚度对场地地表地震动参数的影响()
分享到:

《防灾科技学院学报》[ISSN:1673-8047/CN:13-1377/P]

卷:
第18卷
期数:
2016年03期
页码:
30-37
栏目:
目次
出版日期:
2016-09-30

文章信息/Info

Title:
Effect of Soil Layer Thickness on the Ground Motion Parameters of Site Surface
作者:
原贺军解惠婷曹均锋
安徽省地震局,安徽 合肥230031
Author(s):
Yuan HejunXie HuitingCao Junfeng
Earthquake Administration of Anhui Province, Hefei 230031,China
关键词:
分层厚度反应谱峰值加速度特征周期
Keywords:
layer thicknessresponse spectrumpeak accelerationcharacteristic period
分类号:
P315.9
文献标志码:
A
摘要:
以江淮地区典型场地资料为原型,选取不同的土层分层厚度,构造多种场地土层计算模型,选择Taft、Kobe和El Centro三条强震记录作为地震输入,采用一维频域等效线性化波动方法分析了分层厚度对场地地表地震动参数的影响。研究表明:土层分层厚度对场地地震动参数存在影响,主要表现为采用较大分层厚度计算得到的地表峰值加速度Amax和反应谱特征周期Tg相对偏低,应采用尽可能小的土层分层厚度;分别采用1.0m和2.0m分层厚度计算得到的地表加速度反应谱形状基本重合,Amax和Tg也基本一致,最小选取2.0m土层分层厚度可以满足工程精度的要求。
Abstract:
Based on the data from typical sites in Jianghuai Region, many kinds of soil layer sites for the seismic response was modeled by choosing different layer thickness. The layer thickness effect on ground motion parameters was analyzed with the one dimension equivalent linear method in frequency domain by choosing the Taft, Kobe and El Centro strong motion records as the earthquake input. The results have shown that the soil layer thickness has effect on the ground motion parameters. The peak ground acceleration Amax and the characteristic period of response spectrum Tg calculated by the larger layer thickness are relatively low, the soil layer thickness should be divided as small as possible. The shape of ground acceleration response spectrum obtained by 1.0m and 2.0m layer thickness calculation are basically coincident, and the Amax and Tg are also basically consistent, the minimum soil layer thickness of 2.0m can satisfy the requirement of engineering precision.

参考文献/References:

[1]工程场地地震安全性评价(GB17741—2005)[S].北京:中国标准出版社,2005.
[2]廖振鹏,李小军.地表土层地震反应的等效线性化解法[M].地震小区划—理论与实践.北京:地震出版社.1989:141-153.
[3]齐文浩,薄景山.土层地震反应等效线性化方法综述[J].世界地震工程,2007,23(4):221-226.
[4]刘德东,齐文浩,张宇东,等.现行土层地震反应分析存在的问题[J].防灾科技学院学报,2009,11(3):34-37.
[5]李瑞山,袁晓铭,李程程.中硬场地下两种土层地震反应方法与精确解的对比[J].地震工程学报,2015,37(2):565-570.
[6]袁晓铭,孙锐,孙静,等.常规土类动剪切模量比和阻尼比试验研究[J].地震工程与工程振动,2000,20(4):133-139.
[7]梁久亮,曹均锋,王立会,等.滁州地区覆盖层厚度对场地地震动参数的影响[J].防灾科技学院学报,2015,17(1):40-46.
[8]曹均锋,冯伟栋,董双林,等.输入界面对场地地表地震动参数的影响[J].中国地震,2015,31(2):353-361.
[9]胡聿贤,高孟潭,杜玮,等.《中国地震动参数区划图》宣贯教材[M].北京:中国标准出版社,2001:85-87.
[10]曹均锋,童远林,李光,等.软弱土层对场地地震动峰值的影响[J].地震研究,2013,36(2):192-197.

备注/Memo

备注/Memo:
收稿日期:2016-07-22 基金项目:安徽省地震科研青年基金项目(20120707;20140301) 作者简介:原贺军(1988—),男,硕士,助理工程师,主要从事工程抗震及地震工程方面工作。
更新日期/Last Update: 1900-01-01