剪力墙结构抗震措施的有效性校验

发布时间：2018-01-04 19:09

  本文关键词：剪力墙结构抗震措施的有效性校验　出处：《建筑结构》2016年S1期 　论文类型：期刊论文

  更多相关文章： 剪力墙结构 破坏模式 动力分析 抗震措施

【摘要】：通过对严格按照相关规范设计的算例进行精细有限元动力时程分析,校验了中国规范剪力墙结构能力调整措施的有效性。结果表明,现行规范的设计能够满足剪力墙结构的整体控制指标,能够充分利用连梁耗散地震能量。但是,由于现行规范中未遵循地震力降低系数-位移延性系数关系的基本理论规律,未对各设防烈度区的结构采取严格程度相同或相近的抗震措施,从而使得设计受地震作用控制的7度(0.15g)结构破坏最为严重,抗震性能较弱;也正是由于随抗震等级从一级到三级,采取的抗震措施逐渐减弱,致使连梁的延性需求呈现逐渐增大的趋势;规范规定底部加强区高度对一、二级抗震等级显得不足。规范的薄弱烈度区出现在按直觉似乎地震危险性偏小的7度(0.15g)区的抗震措施上,这需要引起足够重视。
[Abstract]:Through the fine finite element power to strictly in accordance with the relevant specification design example of time history analysis, validity check the specification China shear wall structure ability of adjustment measures. The results show that the current design specification can meet the overall control index of shear wall structure, can make full use of seismic energy dissipation beams. However, due to the current specification do not follow the basic theory of the relationship between the seismic force reduction coefficient and displacement ductility coefficient, no structure of the intensity of anti-seismic measures strictly of the same or similar, which makes the design of control by the earthquake of 7 degrees (0.15g) structure of the most serious damage, the seismic performance is weak; it is also because of the earthquake from grade one to three, seismic measures gradually weakened, resulting in the beam ductility demand is gradually increasing trend; specification of reinforcing area in the bottom of a height, level two The magnitude of earthquake resistance seems to be insufficient. The standard weak intensity area appears on the aseismic measures of 7 degree (0.15g) area with intuition and seemingly less earthquake risk, which needs enough attention.

【作者单位】： 重庆大学土木工程学院;重庆大学山地城镇建设与新技术教育部重点实验室;
【基金】：国家自然科学基金(51478068)
【分类号】：TU398.2;TU352.11
【正文快照】： 2重庆大学山地城镇建设与新技术教育部重点实验室,重庆400045)0引言强震中实现预期的延性破坏模式是保证RC剪力墙结构在大震或超大震抗震性能的决定性因素之一。在不同重现期的地震作用下结构具有不同的抵抗能力和抗震性能,是目前被大家普遍接受的抗震设计思路,兼顾了安全性和，

本文编号：1379706