Peak velocities estimation for a direct five-step design procedure of inter-storey viscous dampers
Peak velocities estimation for a direct five-step design procedure of inter-storey viscous dampers
复制标题
层间粘性阻尼器直接五步设计程序的峰值速度估计
DOI：
10.1007/s10518-015-9829-8
复制
发表时间：
2016
影响因子：
4.6
通讯作者：
T. Trombetti
中科院分区：
文献类型：
--
作者：
M. Palermo;S. Silvestri;L. Landi;G. Gasparini;T. Trombetti
在过去的几十年里，使用附加粘性阻尼器来减轻地震作用对结构元件的影响已经在世界范围内推广。在这方面，提出了几种旨在确定建筑结构中插入的粘性阻尼器尺寸的设计方法。其中，一些作者提出了一个指导实际设计的五步程序，从选择结构体系地震反应的目标降低（相对于没有任何附加阻尼装置的结构的反应），到确定相应的阻尼比和力学特性(即所选阻尼指数的阻尼系数值、油刚度、市售粘性阻尼器的最大阻尼力。该程序要求开发用于评估峰值层间速度剖面的数值模拟，这是评估阻尼力所必需的。本文对剪力型建筑结构在地震作用下的层间速度分布进行了全面的研究，目的是推导出估计层间速度分布的解析公式。然后使用峰值层间速度的分析估计来简化原始的五步程序，从而导致直接（即完全分析）程序。直接程序适用于附加粘性阻尼器的初步设计，特别是对于不每天处理附加粘性阻尼器设计的从业人员。
In the last decades, the use of added viscous dampers for the mitigation of the effects due to the seismic action upon the structural elements has been worldwide spread. In this respect, several design methods aimed at sizing the viscous dampers to be inserted in building structures have been proposed. Among others, some of the authors proposed a five-step procedure which guides the practical design from the choice of a target reduction in the seismic response of the structural system (with respect to the response of a structure without any additional damping device), to the identification of the corresponding damping ratio and the mechanical characteristics (i.e. the damping coefficient values for chosen damping exponent, the oil stiffnes, the maximum damper forces) of the commercially available viscous dampers. The procedure requires the development of numerical simulations for the evaluation of the peak inter-storey velocity profiles, necessary for the evaluation of the damper forces. In the present paper a comprehensive study on the inter-storey velocity profiles developed in shear-type building structures under seismic excitation is conducted with the purpose of deriving analytical formulae for their estimation. The analytical estimations of the peak inter-storey velocities are then used to simplify the original five-step procedure leading to a direct (i.e. fully analytical) procedure. The direct procedure is suitable for the preliminary design of the added viscous dampers, in particular for practitioners not dealing everyday with the design of added viscous dampers.
DOI：
10.5860/choice.33-0948
发表时间：
1995
期刊：
--
影响因子：
--
作者：
A. Chopra
通讯作者：
A. Chopra