冲击荷载下钢管混凝土桩林动力性能试验研究

冉永红; 王秀丽; 王朋; 张智江

doi:10.11779/CJGE2018S1013

冲击荷载下钢管混凝土桩林动力性能试验研究 English Version

冉永红^{1, 2},
王秀丽^{1, 2},
王朋^{1, 2},
张智江^{1, 2}

1. 兰州理工大学土木工程学院,甘肃兰州 730050;
2. 西部土木工程防灾减灾教育部工程研究中心,甘肃兰州 730050

基金项目: 国家自然科学基金项目（51278236）; 国家科技支撑计划项目（2011BAK12B07）

详细信息

作者简介:
冉永红(1988- ),男,博士研究生,主要从事泥石流防灾减灾工程技术等方面研究。E-mail：than023@qq.com。

中图分类号: TU312.1;X913.4
计量
- 文章访问数: 0121
- HTML全文浏览量: 0
- PDF下载量: 0122
出版历程
- 收稿日期: 2018-02-23
- 发布日期: 2018-08-24

Experimental study on dynamic performance of concrete filled steel tubular piles under impact loads

RAN Yong-hong^{1, 2},
WANG Xiu-li^{1, 2},
WANG Peng^{1, 2},
ZHANG Zhi-jiang^{1, 2}

1. School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
2. Western Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou 730050, China

摘要

摘要: 为有效地抵抗泥石流大块石冲击,提出了一种钢管混凝土桩林拦挡坝。为了研究该结构在冲击荷载作用下的动力性能,对其进行了考虑多工况的冲击荷载作用的试验研究。通过分析结构的应变、位移和加速度,总结了结构的响应模式,并与数值模拟进行对比。结果表明,结构的典型响应模式可以概括为以下几种：构件轻微损伤、构件局部破坏、连接节点破坏;随着冲击能量和冲击高度的增加,结构的应变和位移均增大;结构的加速度随冲击高度的增加而增大,而随冲击物质量的增加而减小;整个冲击过程从冲击区响应至整体结构响应耗时很短,约为0.6 ms;桩管受冲击时结构能发挥良好的整体耗能作用,而撑管受冲击时整体结构耗能作用不明显;试验结果与数值模拟吻合较好;钢管混凝土桩林具有良好的抗冲击性能。
- 钢管混凝土桩林 /
- 冲击荷载 /
- 动力性能 /
- 响应模式
Abstract: A kind of concrete filled steel tubular pile is proposed to resist the impact of boulders. In order to study the dynamic performance of the structure under impact loads, the tests considering impact loads of multi working conditions are carried out. The response modes of the structure are summarized and compared with the numerical simulations by analyzing the strain, displacement and acceleration of the structure. The results show that the typical response modes of the structure can be summarized as follows: slight damage, local damage and joint failure. The strain and displacement of structure increase with the enlarging impact energy and height. The acceleration of structure increases with the raising impact height, while decreases with the raising impact mass. The impact process from the response of impact zone to that of whole structure takes a very short time, about 0.6 ms. The whole structure plays a great role in energy dissipation when the pile tube is subjected to impact loads, and it is not obvious when the bracing tube subjected to impact loads. The experimental results are in good agreement with the numerical simulations. The concrete filled steel tubular pile is of good impact resistance.
- concrete filled steel tubular pile /
- impact load /
- dynamic performance /
- response mode

HTML全文

参考文献(12)

[1]	吴积善, 田连权. 论泥石流学[J]. 山地学报, 1996, 14(2): 89-95. (WU Ji-shan, TIAN Lian-quan.On the debris flow science[J]. Mountain Research, 1996, 14(2): 89-95. (in Chinese))
[2]	JULIEN P Y, PARIS A.Mean velocity of mudflows and debris flows[J]. Journal of Hydraulic Engineering, 2010, 136(9): 676-679.
[3]	倪化勇, 唐川. 中国泥石流起动物理模拟试验研究进展[J]. 水科学进展, 2014, 25(4): 606-613. (NI Hua-yong, TANG Chuan.Advances in the physical simulation experiment on debris flow initiation in China[J]. Advances in Water Science, 2014, 25(4): 606-613. (in Chinese))
[4]	崔鹏, 刘世建, 谭万沛. 中国泥石流监测预报研究现状与展望[J]. 自然灾害学报, 2000, 9(2): 10-15. (CUI Peng, LIU Shi-jian, TAN Wan-pei.Progress of debris flow forecast in China[J]. Journal of Natural Disasters, 2000, 9(2): 10-15. (in Chinese))
[5]	何思明, 吴永, 沈均. 泥石流大块石冲击力的简化计算[J]. 自然灾害学报, 2009, 18(5): 51-56. (HE Si-ming, WU Yong, SHEN Jun.Simplified calculation of impact force of massive stone in debris flow[J]. Journal of Natural Disasters, 2009, 18(5): 51-56. (in Chinese))
[6]	康志成, 李焯芬, 马蔼乃, 等. 中国泥石流研究[M]. 北京:科学出版社, 2004. (KANG Zhi-cheng, LI Zhuo-fen, MA Ai-nai, et al.Research on debris flow in China[M]. Beijing: Science Press, 2004. (in Chinese))
[7]	陈晓清, 游勇, 崔鹏, 等. 汶川地震区特大泥石流工程防治新技术探索[J]. 四川大学学报:工程科学版, 2013, 45(1): 14-22. (CHEN Xiao-qing, YOU Yong, CUI Peng, et al.New control methods for large debris flows in Wenchuan earthquake area[J]. Journal of Sichuan University (Engineering Science Edition), 2013, 45(1): 14-22. (in Chinese))
[8]	瞿海雁, 李国强, 孙建运, 等. 侧向冲击作用下钢管混凝土构件的简化分析模型[J]. 同济大学学报(自然科学版), 2011, 39(1): 35-41. (QU Hai-yan, LI Guo-qiang, SUN Jian-yun, et al.Simplified analysis model of circular concrete-filled steel tube specimen under lateral impact[J]. Journal of Tongji University (Natural Science), 2011, 39(1): 35-41. (in Chinese))
[9]	BAMBACH M R.Design of hollow and concrete filled steel and stainless steel tubular columns for transverse impact loads[J]. Thin-Walled Structures, 2011, 49(10): 1251-1260.
[10]	霍静思, 任晓虎, 肖岩. 标准火灾作用下钢管混凝土短柱落锤动态冲击试验研究[J]. 土木工程学报, 2012, 45(4): 9-20. (HUO Jing-si, REN Xiao-hu, XIAO Yan.Impact behavior of concrete-filled steel tubular stub columns under ISO-834 standard fire[J]. China Civil Engineering Journal, 2012, 45(4): 9-20. (in Chinese))
[11]	任晓虎, 霍静思, 陈柏生. 高温后钢管混凝土短柱落锤动态冲击试验研究[J]. 振动与冲击, 2011, 30(11): 67-73. (REN Xiao-hu, HUO Jing-si, CHEN Bai-sheng.Dynamic behaviors of concrete-filled steel tubular stub columns after exposure to high temperature[J]. Journal of Vibration and Shock, 2011, 30(11): 67-73. (in Chinese))
[12]	王蕊, 李珠, 任够平, 等. 钢管混凝土梁在侧向冲击荷载作用下动力响应的试验研究和数值模拟[J]. 土木工程学报, 2007, 40(10): 34-40. (WANG Rui, LI Zhu, REN Gou-ping, et al.Experimental study and numerical simulation of the dynamic response of concrete filled steel tubes under lateral impact load[J]. China Civil Engineering Journal, 2007, 40(10): 34-40. (in Chinese))

施引文献(2)

期刊类型引用(2)

1.	王卫东，高文生，龚维明，林毅峰，刘永超，吴江斌. 基础工程技术的发展与创新. 土木工程学报. 2025(02): 97-117 . 百度学术
2.	舒方法，杨三元，陈韬. 海上风电工程大型构件姿态监测系统开发与应用研究. 港口航道与近海工程. 2024(02): 80-84 . 百度学术