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| Numerical simulation for the impact of induced discontinuity collapse of high-rise buildings with large high-speed flying object |
| Received:October 20, 2014 Revised:December 20, 2014 |
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| DOI：10.7511/jslx201601011 |
| KeyWord:high-rise buildings large high-speed object impact discontinuity collapse |
| Author | Institution |
| 崔铁军 |
辽宁工程技术大学, 安全科学与工程学院, 阜新 ;矿山热动力灾害与防治教育部重点实验室, 阜新 ;大连交通大学, 辽宁省隧道与地下结构工程技术研究中心, 大连 |
| 马云东 |
大连交通大学, 辽宁省隧道与地下结构工程技术研究中心, 大连 |
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| Abstract: |
| To understand the process of discontinuity collapse of high-rise buildings and its characteristics, induced by the impact of large high-speed object, the process of collapse is simulated based on PFC3D as a platform.The high-rise building of the frame-core tube is considered model.The object is composed of three particles, the impact speed of 720 km/h, height of 250 m and 100 m building side.The characteristics of the movement of the object into the interlayer are studied, and the collapse of the process with two kinds of impacted high.The simulation results show that the overall destruction of building would not happen when the object not directly impact the core tube, the core tube damage is the key to building collapse.The collapse impact of building heights can be divided into two stages; their phenomenon and reason are not identical.The three differences in the process of collapse between building heights and building lower are put forward.In the final, the ground influences the scope and characteristics after collapse are analyzed. |
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