立式储罐叠层橡胶隔震3阶段设计

孙建刚¹, 崔利富², 王振¹, 杜蓬娟¹

1.大连民族学院土木建筑工程学院;2.大连海事大学道路与桥梁工程研究所



摘要:

为了研究立式钢制储罐基底隔震设计分析方法,采用3阶段设计进行隔震的优化设计.第1阶段从刚性理论出发,重点考虑隔震引起的波高放大效应,并以波高放大效应限制为界限调整隔震设计频率;第2阶段从弹性理论出发,分析隔震的基底剪力,研究隔震产生的降低效应;第3阶段将刚性理论和弹性理论所获得的基底剪力用平方和开平方的方法作为设计依据,理论上既保证两者作用效应,又为工程设计分析提供了易于理解的分析方法.研究结果表明:以此方法进行设计,既可以达到对基底剪力降低,又能够控制住波高的放大效应.

关键词:  立式储罐  基底隔震  3阶段设计  基底剪力  波高

DOI：10.11918/j.issn.0367-6234.2011.06.024

分类号:TU352.12

基金项目:国家自然科学基金资助项目(51078063/E0808);中石油科技创新基金项目(2009D-5006-06-03)



Vertical storage tank laminated rubber-isolated three-stage design

SUN Jian-gang¹, CUI Li-fu², WANG Zhen¹, DU Peng-juan¹

1.College of Civil and Architecture Engineering,Dalian Nationalities University,116600 Dalian,Liaoning,China;2.Institute of Road and Bridge Engineering,Dalian Maritime University,116026 Dalian,Liaoning,China)

Abstract:

To study vertical steel storage tank isolation design and analysis methods,three-stage design method is used as the optimal design of base isolated for the vertical steel storage tank.In the first stage,from rigidity theory,the wave height amplification effect caused by the base isolated is considered firstly,and the wave amplification is limited to the boundaries of isolation design to adjust the frequency.In the second stage,from elasticity theory,the base shear of isolation is analyzed,and the damping effect of the base isolated is studied.In the third stage,the square and square root results of the base shear obtained by the rigid theory and the theory of elasticity are used as a design basis.In theory,the only guarantee the effect of the two effects,but also for engineering design and analysis provides a easy to understand method of analysis.The results showed that this approach to design can not only achieve the right base shear reduction,but also be capable of controlling the amplification effect of wave height.

Key words:  vertical storage tank  base isolation  three-stage design  base shear  wave height