同济大学学报（自然科学版）2017，Vol.45Issue(11)：1602-1610,9.DOI:10.11908/j.issn.0253-374x.2017.11.004
具有高稳定性的剪切型子结构振动台试验
Shear-type Substructure Shaking Table Testing Method with High Stability
摘要
Abstract
A substructure shaking table testing (SSTT)method using a modified Chen-Ricles (CR) integration algorithm for the multi-story shear-type structure was proposed.The velocity and displacement formulations of the CR algorithm were retained in the modified algorithm,while a stability adjustment factor was introduced to calculate the integration parameters.In addition,dynamic condensation technique was used to take the contribution of the experimental substructure into consideration.Finally,stability analyses of the proposed substructure method were conducted using the discrete control theory.The variables include the structural parameters,time step,stability adjustment factor,whether or not using dynamic condensation,and interest frequency of dynamic condensation.It can be drawn from the stability analysis results of a 2-story shear-type structure that the proposed method is able to efficiently improve the stability compared to the SSTT method using the CR algorithm.关键词
振动台试验/子结构/稳定性/离散控制理论/动力凝聚Key words
shaking table testing/substructure/stability/discrete control theory/dynamic condensation分类
建筑与水利引用本文复制引用
傅博,蒋欢军..具有高稳定性的剪切型子结构振动台试验[J].同济大学学报（自然科学版）,2017,45(11):1602-1610,9.基金项目
国家自然科学基金(51478354) （51478354）
