THE DYNAMIC ANALYSIS OF SPATIAL LATTICE STRUCTURES BASED ON MODE SELECTION AND MODE CONSTRUCTION TECHNIQUES

Hu Zhongyan; Luo Yongfeng; Wang Renpeng; Wang Lei

doi:10.13204/j.gyjz201501003

Volume 45 Issue 1

Mar. 2015

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Lu Huaxi, Liang Pingying, Qiu Zaosheng. COMPARATIVE ANALYSIS OF THE INFLUENCE OF SOFT SOIL LAYER ON SITE CLASSIFICATION BETWEEN CHINESE CODE GB 50011—2001 AND EUROCODE 8[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(2): 82-85. doi: 10.13204/j.gyjz201002019

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Hu Zhongyan, Luo Yongfeng, Wang Renpeng, Wang Lei. THE DYNAMIC ANALYSIS OF SPATIAL LATTICE STRUCTURES BASED ON MODE SELECTION AND MODE CONSTRUCTION TECHNIQUES[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(1): 16-22. doi: 10.13204/j.gyjz201501003

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THE DYNAMIC ANALYSIS OF SPATIAL LATTICE STRUCTURES BASED ON MODE SELECTION AND MODE CONSTRUCTION TECHNIQUES

doi: 10.13204/j.gyjz201501003

Publish Date: 2015-01-20

Abstract

Abstract

The traditional mode superposition scheme seems not so suitable while applied to dynamic analysis of spatial lattice structures. The reason that accounts for this inapplicability is analyzed and summarized in this paper. Based on deep understanding of free vibration mode characteristics and the high computational efficiency of LDR method, a modified mode superposition method, named Eigen-LDR method, is proposed. The computational method is programmed with Matlab. And the dynamic responses of 2 typical spatial lattice structures are computed with the new method. The numerical results show that the proposed method is effective, accurate and with high efficiency.
- spatial lattice structure, seismicanalysis, Eigen mode, Eigen-LDR mode, superposition method.

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