CAJ | 학술논문

阻尼器参数的确定是利用阻尼器连接相邻结构进行减震设计的关键.根据随机地震反应理论,以相邻结构的频率比和质量比为参数,推导了结构位移反应均方差与连接阻尼比的关系式,得到了相邻结构的地震反应与频率比、质量比以及连接阻尼比的影响规律,从而得到了连接阻尼器的优化设计参数.根据自振频率相等的原则,探讨了将多自由度体系简化为单自由度体系的分析方法.最后在El Centro波、Taft 波及人工波激励下,对比分析了某相邻10层建筑结构有连接和无连接时的地震反应,表明黏滞阻尼器连接相邻结构具有较好的减震效果.本分析方法可供相邻结构减震设计参考.
조니기삼수적학정시이용조니기련접상린결구진행감진설계적관건.근거수궤지진반응이론,이상린결구적빈솔비화질량비위삼수,추도료결구위이반응균방차여련접조니비적관계식,득도료상린결구적지진반응여빈솔비、질량비이급련접조니비적영향규률,종이득도료련접조니기적우화설계삼수.근거자진빈솔상등적원칙,탐토료장다자유도체계간화위단자유도체계적분석방법.최후재El Centro파、Taft 파급인공파격려하,대비분석료모상린10층건축결구유련접화무련접시적지진반응,표명점체조니기련접상린결구구유교호적감진효과.본분석방법가공상린결구감진설계삼고.
Parameter determination of a connecting damper is the key problem of adjacent structural seismic mitigation design. Taken the vibration frequency ratio and mass ratio as research parameters, the formulation of mean square deviation displacement and linking damping ratio is derived based on the random vibration theory. Then the relationship of the adjacent structural seismic response versus the parameters including vibration frequency ratio, mass ration and linking damping ratio is presented. Furthermore, the optimal value of the linking viscous damping ratio is investigated. The method of simplifying MDOF system to SDOF system is developed according to the equivalent natural frequencies. Finally, the seismic responses of two 10-story structures with or without connecting dampers, excited by El Centra, Taft and artificial waves, are contrastively analyzed. The results indicate fine earthquake-mitigating effect of viscous dampers connecting adjacent structures. The analysis technique is the reference to seismic control of adjacent structures.