《Earthquake Engineering and Structural Dynamics》杂志刊登

“用于已建成钢筋混凝土结构中抗震评估的联合局部损伤指数”

作者：P. E. Mergos,A. J. Kappos

刊物：《Earthquake Engineering and Structural Dynamics》，2013年，42卷第6期，

     833-852页

关键词：钢筋混凝土；损伤指数；局部缺陷；屈曲；剪切；粘结滑移

摘要：本文介绍了一种新的评估已建成的钢筋混凝土结构的局部损伤指数。其主要研究思路是由单独变形机制引起的损伤代替由多种变形机制（屈曲、剪切、锚固滑移）造成的破坏，而且，充分考虑了这三种响应机制所附加的损伤特性以及由它们的相互作用导致的衰减率的增长。随后将新提出的局部损伤指数连同作者之前提出的有限元模型一起应用到一些存在着局部缺陷的钢筋混凝土柱和框架试件抗震损伤响应的研究中去。研究结果表明，独立于主流损伤模式之外的新的局部损伤指数能够很好的描述所分析试件的损伤模型。

A combined local damage index for seismic assessment of existing RC structures

Authors: P. E. Mergos,A. J. Kappos

Journal: Earthquake Engineering and Structural Dynamics, Volume 42, Issue 6, pages833-852, May2013

Key words: reinforced concrete; damage index; substandard detailing; flexure; shear; bond-slip

Abstract: A new local damage index for existing RC structures is introduced, wherein deterioration caused by all deformation mechanisms (flexure, shear, anchorage slip) is treated separately for each mechanism. Moreover, the additive character of damage arising from the three response mechanisms, and the increase in degradation rate caused by their interaction, are fully taken into consideration. The proposed local damage index is then applied, in conjunction with a finite element model developed previously by the authors, to assess seismic damage response of several RC column and frame test specimens with substandard detailing. It is concluded that in all cases and independently from the prevailing mode of failure, the new local damage index describes well the damage pattern of the analyzed specimens. 

原文链接：http://onlinelibrary.wiley.com/doi/10.1002/eqe.2247/abstract