STUDY ON AXIAL FORCE TRANSFER FROM CFT COLUMN TO PILE OF HIGH-RISE BUILDING BY FIELD MEASUREMENT AND FEM ANALYSIS

Axial force of CFT column and steel column embedded into cast-in-place concrete pile were measured in top-down construction method. In addition, measurement results were accurately simulated by FEM analysis. Axial force transfer mechanism from CFT column to pile is analyzed according to field measur...

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Veröffentlicht in:	AIJ Journal of Technology and Design 2021/06/20, Vol.27(66), pp.668-673
Hauptverfasser:	ZHANG, Yuan, FURUGAICHI, Yasushi, NAKAZAWA, Futa, KAWASAKI, Kenjiro, NAKATA, Hirokazu
Format:	Artikel
Sprache:	eng ; jpn
Schlagworte:	Axial force Axial forces Bond Cast in place Concrete piles Connectors Finite element method Finite element method analysis High rise buildings Shear strength Steel columns Stud connector Top-down construction method
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Beschreibung
Zusammenfassung:	Axial force of CFT column and steel column embedded into cast-in-place concrete pile were measured in top-down construction method. In addition, measurement results were accurately simulated by FEM analysis. Axial force transfer mechanism from CFT column to pile is analyzed according to field measurement and FEM analysis results. At the pile head, axial force of concrete transferred from steel column is increasing and becomes stable due to slipping between steel column and concrete. Besides, it was found that shear strength of stud connectors at the pile head are 60% of design shear strength.
ISSN:	1341-9463 1881-8188
DOI:	10.3130/aijt.27.668