鋼筋混凝土雙軸向彎曲柱之破壞機率

Failure Probability of Reinforced Concrete Columns Subjected to Biaxial Bending

呂文堯(Wen-Yao Lu) ； 林英俊(Ing-Jaung Lin)

《建築學報》 60期 (2007/06) Pp. 215-225

https://doi.org/10.6377/JA.200706.0215

摘要

本文旨在探討鋼筋混凝土雙軸向彎曲柱之破壞機率。本文考慮混凝土強度、鋼筋強度，斷面尺寸，柱理論強度之模式誤差及載重等皆為隨機變數之情形下以蒙地卡羅法分析鋼筋混凝土雙軸向彎曲柱之破壞機率。研究結果顯示，根據ACI 318-05規範設計之鋼筋混凝土雙軸向彎曲柱，其破壞機率偏高，且鋼筋混凝土雙軸向彎曲柱之破壞機率會高於鋼筋混凝土單軸向彎曲柱之破壞機率。

關鍵字

鋼筋混凝土柱 ； 雙軸向彎曲 ； 蒙地卡羅法 ； 破壞機率

並列摘要

The objective of this paper is to investigate the failure probability of reinforced concrete columns subjected to biaxial bending. The failure probability of reinforced concrete columns is determined by the Monte Carlo technique in this paper. The random variables considered in this study are the strength of concrete, the strength of reinforcing steel, the cross section dimension, the model error of theoretical column strength and the loading. This study shows that the failure probability of reinforced concrete columns subjected to biaxial bending and designed using the ACI 318-05 Code is relatively high. This study also shows that the failure probability of reinforced concrete columns subjected to biaxial bending is higher than that of reinforced concrete columns subjected to uniaxial bending.

並列關鍵字

Reinforced concrete columns ； Biaxial bending ； Monte Carlo technique ； Failure probability

參考文獻

呂文堯、林英俊(2006)。ACI318新強度折減因數及載重因數對鋼筋混凝土柱安全性之影響。建築學報。56，91-105。

ACI Committee 318(2005).American Concrete Institute.Farmington Hills, MI:

AISC(2003).American Institute of Steel Construction.Chicago, IL, USA:

Ang, AH-S,Tang, W.H.(1984).Probability Concepts in Engineering Planning and Design (Vol. Ⅱ: Decision, Risk, and Reliability).New York:John Wiley and Sons.

Bresler, B.(1960).Design Criteria for Reinforced Columns with Biaxial Bending.ACI Journal.57(11),81-490.