基于各向异性材料的全预应力梁自振频率的研究

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Abstract Research purposes: The paper analyzed and studied the relation of strand prestressing force and vibration frequency of full-prestressed concrete beam as anisotropic complex material. The further studies on dynamic test technology will base on the results of this paper.

Research methods: We precede theory analysis and calculation regarding prestressed concrete as anisotropic complex material.

Research results: We deduce the formula of natural vibration frequency of Timoshenko beam.

Research conclusions: The calculation results indicate that the analytical method and formula of this paper can reflect the tendency that natural vibration frequency of beam increases with the increment of prestressing force well. Meanwhile, the results of calculation can agree with the results of experiment well. The natural vibration frequency and the second vibration frequency show relatively better accuracy. So, what we regard concrete material as anisotropic complex material is feasible and need further studies on it.

Key words： full-prestressed concrete beam anisotropic complex material vibration frequency

Received: 22 February 2006

PACS:

U441+.3

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	Articles by authors
	ZHANG Yao-ting
	ZOU Bing-chuan

Cite this article:

ZHANG Yao-ting,ZOU Bing-chuan. Research on Vibration Frequency of Full-prestressed Concrete Beam Based on Anisotropic Complex Material[J]. 铁道工程学报, 2006, 23(8): 38-42.

URL:

http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2006/V23/I8/38

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