曲线连续梁桥抗震支座减震效果分析
发布时间：2018-09-12 17:43
【摘要】：减隔震技术能够有效地改善桥梁在地震力作用下的结构响应,提高桥梁结构整体抗震性能。该文以高烈度泉州地区多跨预应力混凝土连续曲线桥为分析对象,通过有限元软件建立三维有限元模型,采用非线性时程分析方法,对桥梁结构进行地震响应分析。对比分析非抗震支座设置模型与铅芯橡胶支座、高阻尼抗震支座设置方案,比较桥梁是否采用抗震支座时桥梁结构的地震响应效果。结果表明:抗震支座能够有效改善控制截面内力,减小地震力作用效果,提高桥梁结构抵御强震冲击的能力。
[Abstract]:The seismic isolation technique can effectively improve the structural response of the bridge under the action of earthquake force and improve the overall seismic performance of the bridge structure. This paper takes the multi-span prestressed concrete continuous curved bridge in Quanzhou area with high intensity as the analysis object, establishes the three-dimensional finite element model by the finite element software, and uses the nonlinear time-history analysis method to analyze the seismic response of the bridge structure. By comparing the non-seismic bearing setting model with the lead-rubber bearing and the high-damping aseismic support setting scheme, the seismic response effect of the bridge structure is compared when the seismic support is adopted or not. The results show that the anti-seismic support can effectively improve the internal force of the control section, reduce the effect of seismic force, and improve the ability of the bridge structure to resist strong earthquake shock.
【作者单位】： 中交第二公路勘察设计研究院有限公司;
【分类号】：U442.55;U443.36
[Abstract]:The seismic isolation technique can effectively improve the structural response of the bridge under the action of earthquake force and improve the overall seismic performance of the bridge structure. This paper takes the multi-span prestressed concrete continuous curved bridge in Quanzhou area with high intensity as the analysis object, establishes the three-dimensional finite element model by the finite element software, and uses the nonlinear time-history analysis method to analyze the seismic response of the bridge structure. By comparing the non-seismic bearing setting model with the lead-rubber bearing and the high-damping aseismic support setting scheme, the seismic response effect of the bridge structure is compared when the seismic support is adopted or not. The results show that the anti-seismic support can effectively improve the internal force of the control section, reduce the effect of seismic force, and improve the ability of the bridge structure to resist strong earthquake shock.
【作者单位】： 中交第二公路勘察设计研究院有限公司;
【分类号】：U442.55;U443.36
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