摘要
在对老建筑抗震性能的研究过程中,由于老建筑物建设年代久远其建筑结构承载失效,位移超限及能量损伤,会使抗震系数受到干扰。采用传统的算法进行老建筑抗震性能分析时,由于老建筑承载力受到干扰影响,导致分析性精确度下降的问题。提出采用固立体学算法的老建筑抗震性能分析方法。上述方法先对老建筑的建筑结构安全储备系统进行详细分析,将其分为建筑构件与结构体系安全储备层面,融合于固体力学通过计算不同因素对老建筑结构整体安全储备的影响,将地面运动强度和老建筑的建筑结构设计大震强度相比较,并获取老建筑的建筑结构倒塌储备系数和建筑结构阻尼矩阵,进而有效的完成了对老建筑抗震性分析。仿真结果表明,采用立体学算法的老建筑抗震性能分析方法精确度高,效果理想。
An analysis method of seismic performance for old buildings based on solid mechanics algorithm was proposed. Firstly, the architectural structure safety reserve system of the old buildings was analysed in detail by using the proposed algorithm, and it is divided as the building components and structural system safety reserve level to fuse into solid mechanics by calculating the effects of different factors on the whole safety reserve of old buildings struc- ture. The ground motion intensities and the designed large earthquake intensities of building structure of old buildings were compared to obtain the collapsed block coefficient and damping matrix of the building structure of old buildings, so as to effectively complete the seismic analysis of old buildings. The simulation results show that the accuracy of the seismic performance analysis method for the old buildings using the solid mechanics algorithm is high, and the effect is ideal.
出处
《计算机仿真》
CSCD
北大核心
2015年第9期433-436,共4页
Computer Simulation
基金
四川省教育厅科研项目(15SB0482)
关键词
抗震性能
弹塑性
抗倒塌
Seismic performance
Elastic-plastic
Anti-collapse
