基金项目:国家自然科学基金面上项目(59778043);国家自然科学基金重大项目(59895410)
作者简介:于向东(1970-),男,河南遂平人,中南大学讲师,工学博士研究生.
作者单位:于向东(中南大学土木建筑学院,湖南长沙 410075)
陈政清(中南大学土木建筑学院,湖南长沙 410075)
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收稿日期:2000年9月18日
出版日期:2001年4月1日
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