| 侧向爆炸作用下地下拱形结构动力响应 |
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| 引用本文： | 陈海龙,金丰年,夏志成,张 宇,范华林,周健南.侧向爆炸作用下地下拱形结构动力响应[J].岩石力学与工程学报,2012,31(Z2):3478-3481. |
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| 作者姓名： | 陈海龙 金丰年 夏志成 张 宇 范华林 周健南 |
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| 作者单位： | (1. 解放军理工大学 工程兵工程学院/理学院，江苏 南京 210007；2. 重庆交通大学 (桥梁)结构工程重点实验室，重庆 400074；;
3. 武警工程大学 建筑工程系，陕西 西安 710086；4. 河海大学 国防工程与装备结构分析实验室，江苏 南京 210098) |
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| 摘 要： | 当爆点偏向结构一侧时，结构会发生部分受荷的情况，从而导致结构的内力及破坏形式发生变化；讨论爆点位于侧向时结构的受荷范围，给出荷载计算公式；将地下结构与周围介质的相互作用关系等效成为一种阻尼作用，从而在结构动力方程中加入相互作用因素，通过方程求解得到结构振动响应的解析解；利用这种方法推导出远场任意角度爆炸荷载作用下结构的响应计算公式，并在侧向爆炸条件下得到结构的位移和最大弯矩分布曲线。
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| 关 键 词： | 爆炸力学 侧向爆炸 地下拱形结构 相互作用 动力响应 |
| 收稿时间： | 2012-04-20 |
DYNAMIC RESPONSE OF UNDERGROUND ARCH STRUCTURE
UNDER SIDE BLAST LOAD |
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| CHEN Hailong,JIN Fengnian,XIA Zhicheng,ZHANG Yu,FAN Hualin,ZHOU Jiannan.DYNAMIC RESPONSE OF UNDERGROUND ARCH STRUCTURE
UNDER SIDE BLAST LOAD[J].Chinese Journal of Rock Mechanics and Engineering,2012,31(Z2):3478-3481. |
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| Authors: | CHEN Hailong JIN Fengnian XIA Zhicheng ZHANG Yu FAN Hualin ZHOU Jiannan |
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| Affiliation: | (1. Engineering Institute of Corps Engineers and College of Science，PLA University of Science and Technology，Nanjing，Jiangsu，210007，China；2. Key Laboratory of Bridge-structure Engineering，Chongqing Jiaotong University，Chongqing 400074，China；3. Department of Architectural Engineering，Engineering College of Chinese Armed Police Force，Xi?an，Shaanxi 710086，China；4. Key Laboratory of Structural Analysis for Defense Engineering and Equipment，Hohai University，Nanjing，Jiangsu 210098，China) |
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| Abstract: | When the centre of explosion is at one side of structure，only part of the structure will subject to explosion load. In this condition，the inner stress and the types of failure of the structure will change greatly. Load distribution is discussed for side blast. The calculation of load is given out. A damping action is used to replace the interaction between structure and the surrounding soil. So the soil-structure interaction is inserted into the controlling equation. And then the exact solution can be obtained by solving the equation. Method is obtained to calculate reaction of the structure when the centre of explosion is in arbitrary position far enough from the structure. And the distribution of displacement and maximum moment are got for side blast. |
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| Keywords: | explosion mechanics side blast underground arch structure interaction dynamic response |
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