基于结构动力学的抗震设计与爆破拆除研究
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摘要
随着科学技术的不断发展,建筑结构设计的多样化,结构抗震、爆破拆除涉及到多学科和领域,结构动力学中的动力反应与抗震设计相互依存、不可分割。现行结构的抗震设计,只是加大了结构的刚度,没有考虑结构与地震波的动态平衡。通过对振动理论分析动荷载作用下的受迫振动的幅-频曲线和相-频曲线,寻求动力反应各种影响因素的规律,进行建筑物抗震设计方案的研究;拆除废弃建筑物常采用爆破处理,建筑物爆破时间短、效率高,但也产生一系列的负面效应,通过建筑物拆除爆破研究对抗震设计有一定的参考价值。在动力学振动理论与抗震设计研究中发现其与动力反应关系密切,可用于探索建筑结构振动理论,寻求抗震可靠性设计。
With the constant development of the science and technology,the diversification of the design of building structures,seismic,blasting demolition involves multidisciplinary field,the dynamic response of structural dynamics and seismic design is interdependent,integral and indivisible. Seismic design of the existing structure,only increases the stiffness of the structure without considering the dynamic balance between structure and seismic waves. By vibration theory analysis of forced vibration under dynamic load amplitude-frequency curve and phase-frequency curve and seek the law of the dynamic response of the various factors affecting the seismic design of buildings. With an increase in engineering construction,blasting demolition caused more concerned about people,demolish abandoned buildings often blasting treatment,the building blasting with short time and high efficiency,but also produced a series of negative effects,by demolition of research on the seismic design of a certain reference value. It' s explored in the kinetic theory of vibration and seismic design of the dynamic response of a close relationship to explore building structures vibration theory,and it could be applied to seek the seismic reliability design,in blasting demolition work,carry out a preliminary theoretical analysis and thinking.
With the constant development of the science and technology,the diversification of the design of building structures,seismic,blasting demolition involves multidisciplinary field,the dynamic response of structural dynamics and seismic design is interdependent,integral and indivisible. Seismic design of the existing structure,only increases the stiffness of the structure without considering the dynamic balance between structure and seismic waves. By vibration theory analysis of forced vibration under dynamic load amplitude-frequency curve and phase-frequency curve and seek the law of the dynamic response of the various factors affecting the seismic design of buildings. With an increase in engineering construction,blasting demolition caused more concerned about people,demolish abandoned buildings often blasting treatment,the building blasting with short time and high efficiency,but also produced a series of negative effects,by demolition of research on the seismic design of a certain reference value. It' s explored in the kinetic theory of vibration and seismic design of the dynamic response of a close relationship to explore building structures vibration theory,and it could be applied to seek the seismic reliability design,in blasting demolition work,carry out a preliminary theoretical analysis and thinking.
引文
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[2]张根辈.随机参数结构在随机荷载激励下的动力响应分析[J].振动工程学报,2012,25(4):165-172.
[3]董克要.热电厂烟筒爆破拆除设计[J].科技信息,2012,30(2):81-82.
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[6]谢礼立.基于性态的抗震设防与设计地震动[M].北京:科学出版社,2009:219-221.
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[9]李宏男.结构振动与控制[M].北京:中国建筑工业出版社,2007:221-223.
[10](美)肖帕.结构动力学理论及其在地震工程中的应用[M].北京:清华大学出版社,2009:226-229.
[2]张根辈.随机参数结构在随机荷载激励下的动力响应分析[J].振动工程学报,2012,25(4):165-172.
[3]董克要.热电厂烟筒爆破拆除设计[J].科技信息,2012,30(2):81-82.
[4]建筑抗震设计规范[G].北京:中华人民共和国住房和城乡建设部,2008:269-271.
[5]袁志仁.《建筑结构抗震设计》课程授课中的难点及对策[J].长春工程学院学报,2009,9(2):95-96.
[6]谢礼立.基于性态的抗震设防与设计地震动[M].北京:科学出版社,2009:219-221.
[7]毛天尔.抗震设计反应谱的动力放大系数[J].土木工程与管理学报,2012,7(1):45-46.
[8]王焕定.结构力学[M].3版.北京:高等教育出版社,2010:269-272.
[9]李宏男.结构振动与控制[M].北京:中国建筑工业出版社,2007:221-223.
[10](美)肖帕.结构动力学理论及其在地震工程中的应用[M].北京:清华大学出版社,2009:226-229.
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