Details
| Original language | English |
|---|---|
| Pages (from-to) | 730-740 |
| Number of pages | 11 |
| Journal | Structure and Infrastructure Engineering |
| Volume | 20 |
| Issue number | 5 |
| Early online date | 12 Oct 2022 |
| Publication status | Published - 2024 |
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.
Keywords
- biaxial bending and axial compression, random biaxial eccentricity, RC column, resistance statistics, wind-dominated combination
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Engineering(all)
- Safety, Risk, Reliability and Quality
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
- Engineering(all)
- Ocean Engineering
- Engineering(all)
- Mechanical Engineering
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In: Structure and Infrastructure Engineering, Vol. 20, No. 5, 2024, p. 730-740.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Probabilistic analysis of resistance for RC columns with wind-dominated combination considering random biaxial eccentricity
AU - Jiang, Youbao
AU - Zheng, Junlin
AU - Yang, Kailin
AU - Zhou, Hao
AU - Beer, Michael
N1 - Funding Information: The research is supported by the National Key R&D Program of China (Grant No. 2021YFB2600900), Natural Science Fund for Distinguished Young Scholars of Hunan Province, China (Grant No. 2022JJ10050), Hunan Provincial Natural Science Foundation of China (Grant No. 2021JJ30716), Open Fund of Bridge Engineering of Changsha University of Science and Technology (Grant No. 19KC01) and Key Discipline Foundation of Civil Engineering of Changsha University of Science and Technology (Grant No. 18ZDXK01). This support is gratefully acknowledged.
PY - 2024
Y1 - 2024
N2 - 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.
AB - 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.
KW - biaxial bending and axial compression
KW - random biaxial eccentricity
KW - RC column
KW - resistance statistics
KW - wind-dominated combination
UR - http://www.scopus.com/inward/record.url?scp=85139790648&partnerID=8YFLogxK
U2 - 10.1080/15732479.2022.2131842
DO - 10.1080/15732479.2022.2131842
M3 - Article
AN - SCOPUS:85139790648
VL - 20
SP - 730
EP - 740
JO - Structure and Infrastructure Engineering
JF - Structure and Infrastructure Engineering
SN - 1573-2479
IS - 5
ER -