Study on Confinement Mechanism for Steel Confined Concrete in T-shaped Partially Encased Composite Columns

Jiawei Wu ； Yuanping Li

《International Core Journal of Engineering》 9卷2期 (2023/02) Pp. 23-32

https://doi.org/10.6919/ICJE.202302_9(2).0004

摘要

Two column specimens of the same sectional size and height were constructed; one was filled with plain concrete, while the other had transverse links added before being filled with concrete. Axial pressure testing revealed that both columns experienced localized flange buckling and concrete crushing, but the installation of transverse links increasing the column's bearing capacity, delaying the development of concrete cracks, and resulting in a more gradual loss of column strength after the limit bearing capacity. The test findings show that transverse links are crucial for improving the mechanical properties of the T‐shaped PEC column. The confinement process for steel confined concrete in T‐shaped PEC columns was then proposed to be studied using an analytical model based on Mander's model. By contrasting experimental and numerical simulation data, this model was shown to be reasonable and accurate.

關鍵字

Steel Confined Concrete ； T‐shaped Partially Encased Composite Columns ； Mander's Model

參考文獻

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