[1]周建中.林木风致动态响应特征的试验研究*[J].西安建筑科技大学学报:自然科学版,2011,43(01):64-069.[doi:DOI:10.15986/j.1006-7930.2011.01.009]
　ZHOU Jian-zhong.Ｓｔｕｄｙ　ｏｎ　ｃｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆ　ｗｉｎｄ－ｉｎｄｕｃｅｄ　ｄｙｎａｍｉｃ　ｒｅｓｐｏｎｓｅ　ｏｆ　ｆｏｒｅｓ[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2011,43(01):64-069.[doi:DOI:10.15986/j.1006-7930.2011.01.009]
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林木风致动态响应特征的试验研究*()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
43
期数:
2011年01期
页码:
64-069
栏目:
出版日期:
2011-02-28

文章信息/Info

Title:
Ｓｔｕｄｙ　ｏｎ　ｃｈａｒａｃｔｅｒｉｓｔｉｃｓ
ｏｆ　ｗｉｎｄ－ｉｎｄｕｃｅｄ　ｄｙｎａｍｉｃ　ｒｅｓｐｏｎｓｅ　ｏｆ　ｆｏｒｅｓ
文章编号:
１００６－７９３０（２０１１）０１－００６４－０６
作者:
周建中
(北京林业大学水土保持学院,教育部水土保持与荒漠化防治重点实验室 北京 100083)
Author(s):
ZHOU Jian-zhong
(Key laboratory of soil and water conservation & desertification combating , Ministry of Education, School of soil and water conservation, Beijing Forestry University, 100083, China)
关键词:
林木 风致动态响应 试验研究
Keywords:
forest;  wind-induced dynamic response;  experimental study
分类号:
TU312
DOI:
DOI:10.15986/j.1006-7930.2011.01.009
文献标志码:
A
摘要:
首先对1株新疆杨进行了阻风效应试验，得出了新疆杨对降低风速及风压的效应很明显的结论；然后通过对5株新疆杨进行实验室条件下的模拟自然风的动力加载试验，得出了新疆杨的风致动态位移及风致动态应变特征曲线；其次通过对4株新疆杨进行野外真实风条件下动力加载试验，得到了风致动态应变、风致动态位移、风致动态速度及风致动态加速度响应特征曲线；最后对室内和野外两种试验条件下的新疆杨动态响应特征曲线进行了对比。试验及分析表明：新疆杨树干上同一方向的上、下两测点位置的位移、速度及加速度具有明显相关性；在随机风荷载激励下，林木的外表层纤维交替处于拉压状态；随着林木高度的增加，林木的风致动态位移越大。本文对林木防风减灾及林木保护具有重要的理论意义和实用价值。
Abstract:
Firstly, the wind-resistance effect test was carried out on one P.bolleana in this article, and conclusion was obtained that P.bolleana was obviously effective to reduce wind speed and wind pressure. And then through dynamic loading test of five P.bolleana under laboratory condition simulating natural wind power, we could obtain their characteristic curves of wind-induced dynamic displacement and wind-induced dynamic strain. Followed by dynamic loading test of four P.bolleana under the condition of true wind power outdoors, we could obtain characteristics curves of wind-induced dynamic strain, wind-induced dynamic displacement, wind-induced dynamic speed and wind-induced dynamic acceleration response. Finally, comparison was carried out on dynamic response characteristic curves of P.bolleana under indoor or field test condition. Test and analysis showed that displacement, velocity and acceleration had obvious pertinence on the upper and lower measuring point position in the same direction of stem of P.bolleana, and in the random wind load excitation, the forest fibers of outer surface were in alternating tension-compression state, and with the increase in forest height, wind-induced dynamic displacement of forest was larger. This article has the important theory significance and practical value to wind resistance and disaster alleviation and protection of forest

参考文献/References:

References
[1] 李锋瑞 张 华 赵丽娅等.科尔沁沙地人工杨树（P.bolleana simonii）林生态防风效应研究[J]，水土保持学报，2003,17(2):62-66.
LI Feng-rui, ZHANG Hua, ZHAO Li-ya, et al, Ecological effect of artificially established poplar forest against wind in horqin sandy land of inner mongolia[J], Journal of Soil Water Conservation, 2003,17(2):62-66.
[2] 关德新 朱廷曜.树冠结构参数及附近风场特征的风洞模拟研究[J]，应用生态学报,2000,11(2):202-204.
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[3] Niklas K.J.，Computing factors of safety against wind-induced tree stem damage[J], 2000,51 (345):797-806.
[4] Zhou X.H., Brandle J.R., Mize C.W.,et al，Three-dimensional aerodynamic structure of a tree shelterbelt: Definition, characterization and working models[J], Agroforestry systems 2004, 63:133-147.
[5]张相庭.结构风工程理论·规范·实践ting. Structural wind engineering-theory·code·practice[M].Beijing: China Architecture & Building Press，2006.
[6]姚延梼杨秀清中国农业科学技术出版社ao, YANG Xiu-qing, DU Juan, et al. Forestry Panorama [M].Beijing: Chinese Agriculture Science & Technology Press，2008.
[7]张建国,李吉跃,彭祚登.人工造林技术概论[M].北京：科学出版社，2007.
ＺＨＡＮＧ　Ｊｉａｎ－ｇｕｏ，ＬＩ　Ｊｉ－ｙｕｅ，ＰＥＮＧ　Ｚｕｏ－ｄｅｎｇ．Ｉｎｔｒｏｄｕｃｔｉｏｎ　ｔｏ　ａｆｆｏｒｅｓｔａｔｉｏｎ　ｔｅｃｈｎｏｌｏｇｙ［Ｍ］．Ｂｅｉｊｉｎｇ：Ｓｃｉｅｎｃｅ　Ｐｒｅｓｓ，
２００７

备注/Memo

备注/Memo:
收稿日期：２００９－１２－１４　　修改稿日期：２０１０－１２－１２
基金项目：国家自然科学基金资助项目（３０８７２０７１）
作者简介：周建中（１９７０－），男，湖南衡东人，副教授，博士，主要从事混凝土结构、异形结构及振动控制、仿生结构、木结构方面的研
究．
更新日期/Last Update: 2015-11-01