Probabilistic analysis of resistance for RC columns with wind-dominated combination considering random biaxial eccentricity

verfasst von

Youbao Jiang, Junlin Zheng, Kailin Yang, Hao Zhou, Michael Beer

Abstract

For reinforced concrete (RC) column with biaxial eccentricity, the conventional design methods usually use the fixed eccentricity criterion to check its resistance, which may underestimate the variations of column resistance. Based on the load statistics compatible with the codes, the random properties of biaxial eccentricity are analyzed with Monte Carlo simulation (MCS) for representative columns in regular frame structures under both vertical load and wind load. Then, the tested capacity results of 103 relevant column specimen are collected from literatures. The uncertainty of the resistance model is analyzed for the reciprocal load method in code ACI 318-14. Based on the criterion of both random eccentricity and fixed eccentricity, the probability regarding load bearing capacity exceedance is analyzed for columns by MCS with different design parameters (e.g. axial compression ratio, etc.). The results indicate that based on the prescribed load statistics, the random properties of eccentricities along two principal directions are mainly controlled by the stochastic wind load, leading to that the eccentricities along two principal directions show an approximate perfect correlation; the random biaxial eccentricity has a significant influence on resistance variations and the maximum coefficient of variation is as large as 0.73.

Organisationseinheit(en)

Institut für Risiko und Zuverlässigkeit

Externe Organisation(en)

Changsha University of Science and Technology

Typ

Artikel

Journal

Structure and Infrastructure Engineering

Band

20

Seiten

730-740

Anzahl der Seiten

11

ISSN

1573-2479

Publikationsdatum

2024

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Tief- und Ingenieurbau, Bauwesen, Sicherheit, Risiko, Zuverlässigkeit und Qualität, Geotechnik und Ingenieurgeologie, Meerestechnik, Maschinenbau

Elektronische Version(en)

https://doi.org/10.1080/15732479.2022.2131842 (Zugang: Geschlossen)