考虑地震动空间非一致性的地铁车站结构振动台试验数值研究

发布时间：2018-03-02 09:37

本文关键词： 地震动非一致性地铁地下结构人工边界单元波动输入法振动台试验　出处：《土木工程学报》2016年S2期 　论文类型：期刊论文

【摘要】：长度超过百米的地下结构受到地震动空间变异性的影响较大,为深入了解粉质粘土地基条件下地铁车站在非一致地震动激励下的动力反应规律,设计并完成了粉质粘土地基条件下非一致地震动激励下地铁车站模型的振动台试验。采用ABAQUS软件建立了三维有限元模型,模拟考虑非一致波动输入的地铁车站振动台试验模型。对比了有限元试验模型与振动台试验的基频和加速度结果,以及有限元试验模型与实际地铁车站有限元模型的内力和加速度结果。通过三者的相互验证,对非一致波动输入地铁车站振动台试验的方法进行了研究。
[Abstract]:The length of more than one hundred meters underground structure is affected by spatial variability is large, in order to deeply understand the silty clay foundation under the condition of the subway station in non uniform seismic dynamic response of excitation, designed and completed the consistent seismic shaking table test model of subway station under the excitation of non silty clay foundation. The 3D finite element model was established by using ABAQUS software, the simulation model of subway station considering non shaking table test. Compared the consistent wave input frequency and acceleration test results of finite element model and shaking table test, experimental and finite element model and the actual subway station finite element model of the internal force and acceleration results. Through mutual authentication three the fluctuation of input method for non-uniform subway station of shaking table test were studied.

【作者单位】：福州大学;
【基金】：国家自然科学基金(51108088,51578157)
【分类号】：TU93

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