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邵磊,余成,卢松梅,张虎,黄子川,袁洪强.悬空管道地震响应试验研究[J].河北工程大学自然版,2021,38(4):67-74
悬空管道地震响应试验研究
Experimental Study on Seismic Response of Suspended Pipeline
投稿时间:2021-07-22  
DOI:10.3969/j.issn.1673-9469.2021.04.010
中文关键词:  悬空管道  地震响应  应变分布
英文关键词:suspended pipeline  seismic response  strain distribution
基金项目:国家自然科学基金资助项目(51778064)
作者单位
邵磊 葛洲坝城北快速路投资建设有限公司, 湖北 荆州 434001 
余成 葛洲坝城北快速路投资建设有限公司, 湖北 荆州 434001 
卢松梅 葛洲坝城北快速路投资建设有限公司, 湖北 荆州 434001 
张虎 长江大学 城市建设学院, 湖北 荆州 434023 
黄子川 长江大学 城市建设学院, 湖北 荆州 434023 
袁洪强 长江大学 城市建设学院, 湖北 荆州 434023 
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中文摘要:
      为研究地震作用下悬空管道的动力响应,设计并制作简易悬空管道试验装置,开展2种加载工况下9根管道的拟动力试验,研讨悬空长度、埋深及管径等因素对悬空管道地震响应的影响。研究结果表明:在地震荷载作用下,以管道悬空段中心为对称轴,管道应变近似反对称分布在管道的两侧,且管道的峰值应变出现在悬空管道的悬空段与土体交界处附近;在大位移条件下,管道峰值应变随管道悬空长度的增大而增大,随管径的增大而减小,随埋深的增大而减小。
英文摘要:
      In order to study the seismic response of suspended pipelines under earthquake, a simple test device for suspended pipelines was designed and manufactured. Pseudo dynamic tests of nine pipelines under two acceleration conditions were carried out to study the influence of suspended length, buried depth and pipe diameter on the seismic response of suspended pipelines. The consequences indicate that:Under the seismic load, the strain of the pipe is approximately anti-symmetrically distributed on both sides of the pipe with the center of the overhanging section as the symmetry axis, and the peak strain of the pipe appears near the junction of the overhanging section of the pipe and the soil body; under the large displacement condition, the peak strain of the pipe increases with the increase of the overhanging length, decreases with the increase of pipe diameter, and decreases with the increase of burial depth.
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