Effects of Near-fault Velocity Pulse Motions on Seismic Responses of the RC Frame

张莹; 孙广俊; 李鸿晶

doi:10.13409/j.cnki.jdpme.2017.03.006

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Effects of Near-fault Velocity Pulse Motions on Seismic Responses of the RC Frame

更新时间：2025-12-11

- Effects of Near-fault Velocity Pulse Motions on Seismic Responses of the RC Frame
- Vol. 37, Issue 3, Pages: 368-373(2017)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2017.03.006
  CLC： U352.11;TU375.4
- Published：2017
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[1]张莹,孙广俊,李鸿晶.近断层速度脉冲对RC框架的地震反应影响[J].防灾减灾工程学报,2017,37(03):368-373.

张莹, 孙广俊, 李鸿晶. Effects of Near-fault Velocity Pulse Motions on Seismic Responses of the RC Frame[J]. 2017, 37(3): 368-373.
[1]张莹,孙广俊,李鸿晶.近断层速度脉冲对RC框架的地震反应影响[J].防灾减灾工程学报,2017,37(03):368-373. DOI： 10.13409/j.cnki.jdpme.2017.03.006.

张莹, 孙广俊, 李鸿晶. Effects of Near-fault Velocity Pulse Motions on Seismic Responses of the RC Frame[J]. 2017, 37(3): 368-373. DOI： 10.13409/j.cnki.jdpme.2017.03.006.

摘要

强烈的速度脉冲运动严重影响结构的地震响应

而目前的抗震设计规范并未对结构的速度响应作出全面分析。因此

根据汶川地震记录筛选出两组具有代表性的近断层强震数据:一组3向均含有速度脉冲;另一组3向均不含速度脉冲。对选出的6条地震动的速度反应谱、V2时-频反应谱、累积动能曲线进行了分析比较。在此基础上

以某钢筋混凝土框架结构为例

探讨了结构在这两组输入地震动作用下的动力响应差异和速度脉冲对钢筋混凝土结构的地震反应影响。结果表明:近断层速度脉冲型地震动对各频率段的单自由度体系均有较大的能量输入

且对长周期结构具有更大的破坏作用。

Abstract

Although the influence of near-fault velocity pulse on the seismic responses of reinforced concrete（RC）structures is notable

current seismic design code does not make comprehensive analysis on structural velocity response.In this paper two groups of strong ground motion records within the rupture distance of 20 km in Wenchuan earthquake are selected:three velocity pulse and three non-pulse records.Then

the characteristics of these six records are analyzed for comparison in the velocity spectrum

time-frequency response spectrum（V2 TFRS）and the accumulative kinetic energy curve respectively.Finally

a RC frame structure is simulated to analyze the nonlinear seismic damage behaviors and the effects of strong velocity pulse on the structure subjected to pulse and non-pulse motions.Results show that the input energy of near

fault pulse motions is much greater than that of the non-pulse motions.Furthermore

pulse motions have a damage effect on the long period structures in the near-fault region.

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references

近断层地震动作用下设计速度反应谱研究 [J]. 杜永峰,徐天妮,王亚楠,包超. 地震工程学报 . 2014(04)

脉冲型地震动的潜在破坏能分析 [J]. 邱志刚,罗奇峰. 土木工程学报 . 2014(12)

开洞填充墙对混凝土框架柱地震损伤影响分析 [J]. 张莹,孙广俊,李鸿晶. 振动.测试与诊断 . 2014(05)

近断层地震动记录中速度大脉冲及其影响范围 [J]. 郭恩,周锡元,彭凌云,赵作周. 北京工业大学学报 . 2012(02)

Time-frequency response spectrum of rotational ground motion and its application [J]. Wei Che 1 and Qifeng Luo 2, 1 School of Engineering & Technology, China University of Geosciences, Beijing 100083, China 2 Shanghai Institute of Disaster Prevention and Relief, Tongji University, Shanghai 200092, China. Earthquake Science . 2010(01)

汶川地震中房屋建筑震害特征及抗震设计思考 [J]. 李碧雄,谢和平,邓建辉,何昌荣,王哲. 防灾减灾工程学报 . 2009(02)

钢筋混凝土结构非线性分析[M]. 哈尔滨工业大学出版社 , 何政, 2006

Selection of Near-Fault Pulse Motions [J] . Connor P. Hayden,Jonathan D. Bray,Norman A. Abrahamson. Journal of Geotechnical and Geoenvironmental Engineering . 2014 (7)

Seismic evaluation of FRP strengthened RC buildings subjected to near-fault ground motions having fling step [J] . A. Mortezaei,H.R. Ronagh,A. Kheyroddin. Composite Structures . 2009 (5)

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