[1]刘学武,夏开全,高 燕,等.构件并联法加固输电塔的试验研究及设计建议[J].西安建筑科技大学学报:自然版,2011,43(06):838-844.[doi:DOI:10.15986/j.1006-7930.2011.06.012]
,,et al.Study on strengthening the structure and its design for the transmission tower[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2011,43(06):838-844.[doi:DOI:10.15986/j.1006-7930.2011.06.012]
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构件并联法加固输电塔的试验研究及设计建议()
西安建筑科技大学学报:自然版[ISSN:1006-7930/CN:61-1295/TU]
- 卷:
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43
- 期数:
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2011年06期
- 页码:
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838-844
- 栏目:
-
- 出版日期:
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2011-12-31
文章信息/Info
- Title:
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Study on strengthening the structure and its design for the transmission tower
- 文章编号:
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1006-7930(2011)06-0838-07
- 作者:
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刘学武; 夏开全; 高 燕; 刘思远; 任西春
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(中国电力科学研究院,北京100192)
- Author(s):
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LIU Xue-wu; XIA Kai-quan; GAO Yan; LIU Si-yuan; REN Xi-chun
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(China Electric Power Research Institute,Beijing 100192,China)
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- 关键词:
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输电线路; 输电塔; 角钢; 加固方法
- Keywords:
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overhead transmission line; transmission tower; angle-shaped member; strengthening method
- 分类号:
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TM75
- DOI:
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DOI:10.15986/j.1006-7930.2011.06.012
- 文献标志码:
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A
- 摘要:
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输电塔易由于荷载过大、断线冲击或覆冰舞动而发生损伤和破坏.针对角钢塔的结构特点,在其原构
件的侧面通过连接板及螺栓并联一根新的同规格角钢,以提高结构的承载力.对十字型、Z字型和T字型三种
截面形式加固构件的承载性能进行了数值分析和试验研究,考虑了二次受力的影响,研究了加固构件的破坏
过程、破坏模式和极限荷载,与单角钢构件的承载性能进行了对比分析,结果表明加固后新构件的承载力明
显提高.借鉴钢结构加固技术规范,建议了加固构件稳定性设计计算公式,确定了加固折减系数的取值.
- Abstract:
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Serious damage and collapse of transmission towers were easily induced by the ice disaster,wind disaster and so
on.To improve the mechanical performance of the damaged tower assembled by angle-shaped members,an identical angle-
shaped member is connected on the side of the existing angle-shaped member through steel plates and bolts.Several
kinds of the composite section for the strengthened member are proposed,such as cross-shaped section,Z-shaped section,
T-shaped section,and so on.The mechanical behavior of the strengthened member is discussed numerically and experimentally,
and the failure mode and the ultimate load of each strengthened member are obtained,which demonstrate that
the methods in this paper can strengthen the tower effectively.Based on the experimental results and the codes,the design
formula for the stability of the strengthened member is given.
参考文献/References:
References
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备注/Memo
- 备注/Memo:
-
*收稿日期:2011-06-16 修改稿日期:2011-10-18
基金项目:国家自然科学基金资助项目(50978149);国家电网公司科技项目(SGKJJSKF[2008]600)
作者简介:刘学武(1977-),男,河北人,博士、工程师,主要从事输电线路防灾减灾研究
更新日期/Last Update:
2015-11-06