论文部分内容阅读
讨论了消能减震结构附加阻尼比计算的两种基本方法,并对结构应变能计算的三种表达式进行分析,给出不同表达式的使用建议,在此基础上,通过一个算例对和附加阻尼比及减震效果相关的几个问题进行了比较分析。明确不同附加阻尼比计算方法在小震和大震下产生的具体差别程度;比较了局部楼层布置阻尼器时采用附加阻尼比的误差、高附加阻尼比对地震总输入能量的影响等。在给出附加阻尼比相关问题定量化规律特征的前提下,对消能减震结构设计与分析提出了合理化建议。
Two basic methods for calculating the additional damping ratio of energy-absorbing and shock-absorbing structures are discussed. Three expressions of structural strain energy calculations are analyzed. Suggestions for the use of different expressions are given. Based on this, an example is given. Several problems related to the additional damping ratio and damping effect were compared and analyzed. The specific differences in the calculation methods of different additional damping ratios under small earthquakes and large earthquakes are clearly defined; the effects of additional damping ratio error and high additional damping ratio on the total input energy of earthquakes are compared when the dampers are arranged on local floors. On the premise of giving the quantification characteristics of the related problems of the additional damping ratio, reasonable suggestions are given for the design and analysis of the energy dissipation structure.