考虑流-固耦合梁式矩形渡槽横向地震响应研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
根据豪斯纳尔(Housner)理论,建立了考虑槽内水体与渡槽槽身流-固耦合的横向地震响应计算模型,分析了槽身断面深宽比变化对渡槽结构抗震的影响,并对某大型渡槽进行了多工况地震时程响应计算.结果表明,在地震波作用下,渡槽槽内大质量水体对渡槽的横向地震响应有较大的影响,但水体的晃荡作用有明显的TLD效应.若将水体视为刚体,质量全部附加到槽体上,将严重地夸大水的地震惯性力作用,且在渡槽槽身断面选择时应考虑深宽比对墩身地震响应的影响,以减小地震力.
Based on the theory of Housner, the transverse seismic response of beam aqueduct considering fluid-structure coupling is established. With the variation of aqueduct cross-section ratio of depth to width, the aqueduct transverse seismic response change. The transverse seismic response of a large-scale aqueduct in several work condition are calculated. It shows that the transverse seismic response is greatly influenced by the water mass in the aqueduct, but the shaking water play a TLD role. If the whole water is appended aqueduct body, it will magnify seismic inertia action. When aqueduct cross-section is selected, the influence of ratio of depth and width to pier seismic response should be considered in order to reduce seismic action.
引文
季日臣,陈尧隆.2005.大型多纵梁矩形渡槽结构静力计算方法研究[J].水力发电学报,24(5):80-84.
    居荣初,曾心传.1983.弹性结构与液体的耦联振动理论[M].北京:地震出版社:88-96.
    刘云贺.2001.流体-固体动力耦合理论及水利工程应用[D]:[学位论文].西安:西安交通大学:28-30.
    刘云贺,胡宝柱,阎建文,等.2002.Housner模型在渡槽抗震计算中的实用性[J].水利学报,33(9):94-99.
    王博,徐建国.2004.大型渡槽考虑土-结构相互作用的动力分析[J].世界地震工程,23(5):40-43.
    吴轶,莫海鸿,杨春,等.2005.排架-渡槽-水三维耦合体系地震响应分析[J].水利学报,36(3):280-285.
    中华人民共和国水利部.1998.水工建筑物抗震设计规范(SL20347)[S].北京:中国水利水电出版社:11-17.
    中华人民共和国交通部.1999.公路工程抗震设计规范(JTJ004-89)[S].北京:人民交通出版社:22-38.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心