孙加超1,邓勇军1,2,姚 勇1,2,吴晓凤1,牛振坤1
综合管廊在燃气仓内爆炸作用下的结构动力响应数值分析
Numerical Analysis on Structural Dynamic Respond of Utility Tunnel under the Role of Internal Explosion in Gas Gallery
2018年第3期
综合管廊;内爆炸;数值分析;动力响应
Utility tunnel; Internal explosion; Numerical analysis; Dynamic response
2018年第3期
1000-4637(2018)03-42-06
西南科技大学研究生创新基金项目(17ycx111)。
孙加超1,邓勇军1,2,姚 勇1,2,吴晓凤1,牛振坤1
1.西南科技大学土木工程与建筑学院,绵阳 621000; 2.工程材料与结构冲击振动四川省重点实验室,绵阳 621000
孙加超,邓勇军,姚勇,等.综合管廊在燃气仓内爆炸作用下的结构动力响应数值分析[J].混凝土与水泥制品,2018(3):42-47.
SUN J C,DENG Y J,YAO Y,et al.Numerical Analysis on Structural Dynamic Respond of Utility Tunnel under the Role of Internal Explosion in Gas Gallery[J].China Concrete and Cement Products,2018(3):42-47.
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综合管廊在燃气仓内爆炸作用下的结构动力响应数值分析
英文名 :
Numerical Analysis on Structural Dynamic Respond of Utility Tunnel under the Role of Internal Explosion in Gas Gallery
刊期 :
2018年第3期
关键词 :
综合管廊;内爆炸;数值分析;动力响应
Key words :
Utility tunnel; Internal explosion; Numerical analysis; Dynamic response
刊期 :
2018年第3期
DOI :
文章编号 :
1000-4637(2018)03-42-06
基金项目 :
西南科技大学研究生创新基金项目(17ycx111)。
作者 :
孙加超1,邓勇军1,2,姚 勇1,2,吴晓凤1,牛振坤1
单位 :
1.西南科技大学土木工程与建筑学院,绵阳 621000; 2.工程材料与结构冲击振动四川省重点实验室,绵阳 621000
孙加超1,邓勇军1,2,姚 勇1,2,吴晓凤1,牛振坤1
孙加超,邓勇军,姚勇,等.综合管廊在燃气仓内爆炸作用下的结构动力响应数值分析[J].混凝土与水泥制品,2018(3):42-47.
SUN J C,DENG Y J,YAO Y,et al.Numerical Analysis on Structural Dynamic Respond of Utility Tunnel under the Role of Internal Explosion in Gas Gallery[J].China Concrete and Cement Products,2018(3):42-47.
摘要
参数
结论
参考文献
引用本文
摘 要:利用LS-DYNA有限元软件,模拟了综合管廊燃气仓内爆炸的情况。通过改变炸药量,分析了城市综合管廊结构的破坏模式,超压与位移规律。结果表明,炸药量对燃气仓影响较大,对电力仓影响不大。随着炸药量的增大,综合管廊破坏越严重,且破坏处均为墙板交接处与混凝土板中间位置。综合管廊多数位置的超压时程曲线,位移时程曲线基本遵循随着炸药量的增加而增加,少数位置后半时程出现的差异与内爆过程中管廊墙板裂缝具有很大的关系。
Abstract:The urban comprehensive corridor is the lifeline infrastructure of the city. In order to obtain the dynamic response of the utility tunnel structure under explosion, the LS-DYNA was used to simulate the explosion in the gas Gallery of the pipe gallery. By changing the explosive amount, the failure modes, overpressure and displacement laws of the urban comprehensive corridor structure are analyzed. The results show that the explosive dosage has great influence on the gas storage chamber, and has little effect on the power storage room. With the increase of explosive dosage, the damage of the utility tunnel is more serious, and the damage place is the middle position between the wallboard joint and the concrete slab. The overpressure time curve and displacement time curve of most of the pipe gallery follow the increase of explosive charge basically, and the fluctuation of the second half of the individual position has a great relationship with the cracks in the wall of the utility tunnel during the implosion
关键词:
综合管廊;内爆炸
数值分析;动力响应
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