AN EVALUATION METHOD OF FLEXURAL STRENGTH OF HIGH STRENGTH CONCRETE COLUMNS USING STRESS BLOCK

作者：A Muramatsu, Tsutomu Komuro, Kazumasa Imai, Takeyoshi Korenaga, Minehiro Nishiyama · 发表于：Journal of Structural and Construction Engineering (Transactions of AIJ) · 年份：2006 · DOI：10.3130/aijs.71.127_2 · 被引用次数：2 · 研究领域：Structural Behavior of Reinforced Concrete

The authors propose two kinds of concrete rectangular stress blocks to be used for flexural capacity evaluation of high strength concrete columns up to 180N/mm^2 in concrete compressive strength. One is for the first peak capacity where the cover concrete spalls off, and the other is for the second peak capacity, following the first peak, calculated based on the core area. The calculation results using these stress blocks show good agreement with the test results which were obtained from high strength concrete columns tested under flexural compression. The evaluation by the stress block was found useful for structural design.