工程力学 ›› 2019, Vol. 36 ›› Issue (6): 128-137.doi: 10.6052/j.issn.1000-4750.2018.05.0259

• 土木工程学科 • 上一篇    下一篇

基于显式摩擦摆单元的大规模复杂连体结构非线性时程分析

曹胜涛1,2, 李志山1, 刘博3   

  1. 1. 广州大学广东省地震工程与应用技术重点实验室, 广州 510405;
    2. 中国建筑科学研究院, 北京 100013;
    3. 悉地(北京)国际建筑设计顾问有限公司, 北京 100013
  • 收稿日期:2018-05-18 修回日期:2018-12-25 出版日期:2019-06-25 发布日期:2019-05-31
  • 通讯作者: 李志山(1966-),男,广东清远人,教授,博士,主要从事结构抗震减震方面的数值分析研究(E-mail:1059607480@qq.com). E-mail:1059607480@qq.com
  • 作者简介:曹胜涛(1985-),男,河北邢台人,工程师,博士,主要从事非线性有限元和结构振动控制研究(E-mail:shengtaocao@163.com);刘博(1989-),男,陕西西安人,助理工程师,硕士,主要从事建筑结构设计及相关研究(E-mail:liu.bo6@ccdi.com.cn).
  • 基金资助:
    "十三五"国家重点研发计划高性能计算重点专项项目(2016YFB0200605)

NONLINEAR TIME HISTORY ANALYSIS OF A LARGE-SCALE COMPLEX CONNECTED STRUCTURE BASE ON AN EXPLICIT FRICTION PENDULUM ELEMENT

CAO Sheng-tao1,2, LI Zhi-shan1, LIU Bo3   

  1. 1. Guangdong Provincial Key Laboratory of Earthquake Engineering and Applied Technology, Guangzhou University, Guangzhou 510405, China;
    2. China Academy of Building Research, Beijing 100013, China;
    3. CCDI Group Co., Ltd., Beijing 100013, China
  • Received:2018-05-18 Revised:2018-12-25 Online:2019-06-25 Published:2019-05-31

摘要: 为克服复杂摩擦摆减隔震结构隐式非线性动力分析收敛困难且计算效率低的技术瓶颈;基于经典的摩擦摆力学模型,该文构造了一种2节点12自由度的显式摩擦摆单元,利用修正的向前Euler方法实现了此单元的内力计算;在自主研发的非线性有限元软件中完成开发,通过与SAP2000隐式摩擦摆单元对比,验证了开发内容的正确性。利用自主研发软件对某三塔连体结构进行了整体动力时程分析,研究了结构非线性、连廊支座类型及参数对结构动力响应的影响。

关键词: 摩擦摆, 非线性动力时程分析, 单元内力计算, 显式积分方法, 复杂连体结构

Abstract: The implicit nonlinear dynamic time-history analysis of complex structures with a friction pendulum system is difficult to converge, and its computational efficiency is low. Based on a classical friction pendulum model, an explicit friction pendulum element with 2 nodes and 12 degrees of freedom was presented; using the modified forward Euler method, the element internal force was evaluated. The proposed element and algorithm were developed in a nonlinear finite element software with independent intellectual property rights. The correctness of the software was verified by comparing with SAP2000. The dynamic time history response of a complex connected structure with three towers was analyzed by the software. The results showed that the dynamic response of the structure was influenced by structural nonlinearity, the bearing type of the corridors and parameters of the bearing.

Key words: friction pendulum, nonlinear dynamic time-history analysis, element internal force evaluation, explicit integration method, complex connected structure

中图分类号: 

  • TU311.3
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