An assessment of parameters describing the response of a reinforced concrete beam

Abstract

This paper outlines the background to a variety of parameters that are considered in order to establish their suitability as performance descriptors. This assessment is made in conjunction with data collected from twelve tests on nominally identical beam plastic hinges that were tested using different loading histories. Candidate descriptors are categorised as those that consider displacements and those based on damage. A suite of damage indices is also considered. Preliminary comments are made regarding the response comparison of tests conducted using different loading histories.

Influence of loading history on the response of a reinforced concrete beam

“…One of the objectives of this study was to determine whether the order of earthquake records within an acceleration history affects the experimental results. In Ingham et al (2001), the procedure followed to simulate the seismic response of the ten-storey building is discussed. Five acceleration histories consisting of four or five scaled earthquake records were developed.…”

“…21 ). history A, this was due to scaling issues (refer to Ingham et al 2001). For the remaining acceleration histories it proved difficult to identify failure as defined by the onset of significant strength degradation.…”

Post‐earthquake stiffness loss estimation for reinforced concrete columns using fractal analysis of crack patterns

“…Kappos 13 proposed DS classifications according to the damage indices for RCMFs. The relationship between the DI and cyclic dissipated energy of RC beams using a benchmark building was identified by Ingham et al 14 Alzate 15 proposed an innovative methodology for updated stiffness estimation using a probabilistic procedure. Cao et al 16 assessed the dependency between the flexural capacity of the RC building and the DI.…”

“…Banon and Veneziano 5 developed a secant stiffnessbased damage index (DI) in 1982, referred to hereafter as "DI," which has been widely used for quantification of stiffness degradation and dynamic stability evaluation in steel [6][7][8][9][10][11] and RC structures. [12][13][14][15][16][17][18][19][20][21][22] For example, Skjaerbaek et al 12 investigated the dependency between story accelerations and the DI of an RC moment frame (RCMF) extracted from shaking table experiment. Kappos 13 proposed DS classifications according to the damage indices for RCMFs.…”