[1]张翀,舒赣平.落地式钢筒仓卸料的模型试验研究[J].东南大学学报(自然科学版),2009,39(3):531-535.[doi:10.3969/j.issn.1001-0505.2009.03.021]
 Zhang Chong,Shu Ganping.Experimental research of ground-supported steel silo model’s discharge[J].Journal of Southeast University (Natural Science Edition),2009,39(3):531-535.[doi:10.3969/j.issn.1001-0505.2009.03.021]
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落地式钢筒仓卸料的模型试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
39
期数:
2009年第3期
页码:
531-535
栏目:
土木工程
出版日期:
2009-05-20

文章信息/Info

Title:
Experimental research of ground-supported steel silo model’s discharge
作者:
张翀 舒赣平
东南大学土木工程学院, 南京 210096
Author(s):
Zhang Chong Shu Ganping
School of Civil Engineering, Southeast University, Nanjing 210096, China
关键词:
钢筒仓 初始缺陷 卸料 动态应变
Keywords:
steel silo imperfection discharge dynamic strain
分类号:
TU333
DOI:
10.3969/j.issn.1001-0505.2009.03.021
摘要:
进行了落地式钢筒仓模型的卸料试验,通过改变卸料口的直径和位置研究了8种不同卸料状况下仓壁应变随时间的变化情况.采用全站仪较精确地测定了钢筒仓模型的几何形状,确定了钢筒仓模型的初始缺陷,证明了初始缺陷对钢筒仓模型应变具有较大的影响.通过对各种卸料状况下仓壁应变随时间变化的比较分析表明,卸料口的大小以及卸料口的偏心位置对于不同位置处仓壁的应变具有不同的影响,在0.8倍筒仓直径至1.6倍筒仓直径的高度范围内仓壁应变随时间变化比较剧烈,在偏心卸料时靠近卸料口位置的仓壁应变变化比较剧烈,仓壁动态应变的最大变化量约为静态应变的3~4倍.试验研究表明在实际工程中应充分考虑偏心卸料对仓壁受力性能带来的巨大影响.
Abstract:
The discharge experiment of a ground-supported steel silo model is carried out to research the dynamic strain of a silo wall during discharge. Eight different discharge cases, including outlets of three different diameters and positions, were designed in this experiment. The steel silo model’s imperfection was measured to prove its influences on the silo wall’s strains. Through comparing the dynamic strains of different discharge cases, it is found that the size and offset of discharge outlet have great influences on the silo wall’s strains. The strains of a silo wall at a height of 0.8 and 1.6 times that of the silo diameter and those near the eccentric outlet change greatly during discharge. And the largest dynamic strain variation during discharge is about 3 to 4 times that of the static strain. The experiment shows that the influence of eccentric discharge should be fully considered in silo project design.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 张翀(1980—),男,博士生; 舒赣平(联系人),男,博士,教授,博士生导师,shuganping@seu.edu.cn.
引文格式: 张翀,舒赣平.落地式钢筒仓卸料的模型试验研究[J].东南大学学报:自然科学版,2009,39(3):531-535. [doi:10.3969/j.issn.1001-0505.2009.03.021]
更新日期/Last Update: 2009-05-20