Numerical Simulation of Frame Structure Blasting Demolition under Explosive Loading
In order to further improve the accuracy of the numerical simulation technology in buildings blasting demolition, numerical simulations on seven-story frame structure blasting demolition process were carried out adopting separate common node reinforced concrete model, and two simulation methods betw...
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Published in | Applied Mechanics and Materials Vol. 533; no. Modern Tendencies in Engineering Sciences; pp. 164 - 169 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Zurich
Trans Tech Publications Ltd
01.02.2014
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Subjects | |
Online Access | Get full text |
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Summary: | In order to further improve the accuracy of the numerical simulation technology in buildings blasting demolition, numerical simulations on seven-story frame structure blasting demolition process were carried out adopting separate common node reinforced concrete model, and two simulation methods between the concrete elements on cut site directly removed and the concrete elements on cut site reserved with explosive loading applied instead were comparative analyzed. Simulation result indicates that, separate common node model can reflect mechanical properties difference of concrete and reinforcement through analysis on their loading process. There would be an upward impact force on the structure at the moment of detonating when the concrete elements on cut site were reserved with explosive loading applied instead, and it made the whole structure collapsed process extend about 0.5 s and structure touchdown vibration increase about 2.39 times. It had a negative impact on blasting vibration control, so the applied explosive blasting on cut site become a factor to be considered on the numerical simulation of structure blasting demolition. Studies suggest that the applied explosive blasting on the numerical simulation of structure blasting demolition can simulate the collapse process of building blasting demolition more real and will be an better aided design of structure blasting, and it has important engineering practical value. |
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Bibliography: | Selected, peer reviewed papers from the 2014 International Forum on Materials Processing Technology (IFMPT 2014), January 18-19, 2014, Guangzhou, China and the 2014 International Conference on Sensors, Instrument and Information Technology (ICSIIT 2014), 18-19 January, 2014, Guangzhou, China ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISBN: | 9783038350453 3038350451 |
ISSN: | 1660-9336 1662-7482 1662-7482 |
DOI: | 10.4028/www.scientific.net/AMM.533.164 |