摘要
消能减震结构的抗震计算可采用考虑阻尼影响的反应谱按常规的振型分解反应谱法进行,其中的关键问题是确定消能装置提供的附加阻尼比。针对国内消能减震结构抗震计算的现状,在《建筑消能减震技术规程》(JGJ 297—2013)建议的附加阻尼比算法基础上,给出了一种改进的自动迭代算法,并在软件SATWE中实现。对实际工程的计算表明,该算法相比于传统的手算方法准确性和效率更高、适用范围更广。使用本文算法及程序,可以使消能减震结构的抗震计算更加接近于传统结构的抗震计算。
Modal response spectrum analysis using spectrums with damping adjustment can be applied to the aseismic calculation of structure with energy dissipation devices. The key issue is determining the additional damping ratio of the energy dissipation devices. According to the status of aseismic calculation of structures with energy dissipation devices in china,an improved automatic iterative algorithm for additional damping ratio was proposed,which is based on the algorithm proposed by the Technical specification for seismic energy dissipation of buildings. This improved algorithm had been implemented in SATWE,which is a analysis and design software for buildings. The calculating of the actual projects indicated that this improved algorithm is more accurate and more efficient and the range of application is more extensive.Using software SATWE,the aseismic calculation of structures with energy dissipation devices is similar to the traditional building structures.
出处
《建筑结构》
CSCD
北大核心
2018年第S1期345-349,共5页
Building Structure
关键词
消能减震
等效线性化
振型分解反应谱法
附加阻尼比
energy dissipation
equivalent linearization
modal response spectrum analysis
additional damping ratio
