不同隔震设计方法对结构基础内力和配筋的对比分析

Contrastive analysis on internal force and reinforcement of structural foundation by different isolation design methods

隔震建筑具有吸收耗散地震能量,延长自振周期,弱化地震响应,减弱地震破坏等优点,随着国标《建筑隔震设计标准》(GB/T 51408-2021)的颁布实施,隔震技术在国内的运用越来越标准化。为探究新《隔标》与《抗规》对结构基础设计的影响,结合工程实例,较为详细地叙述了隔震结构在考虑地震作用条件下的基础设计方法,分析了新《隔标》与《抗规》对结构基础内力和配筋的影响规律,为类似项目提供参考。

Seismic isolation buildings have the advantages of absorbing and dissipating seismic energy, prolonging natural vibration period, weakening seismic response and weakening seismic damage. With the promulgation and implementation of the national Standard for seismic isolation design of building(GB/T51408-2021), the application of seismic isolation technology in China is becoming more and more standardized. In order to explore the influence of the new “isolation standard” and “anti-seismic code” on the design of structural foundation, combined with engineering examples, the design method of foundation isolation under earthquake was described in detail, and the influence law of the new “isolation standard” and “anti-seismic code” on the internal force and reinforcement of structural foundation was analyzed, so as to provide reference for similar projects.