Structural analysis of circular UHPCC form for hybrid pier under construction loads

X.G. Wu, X.Y. Zhao and S.M. Han

Abstract

Ultra high performance cementitious composite material is applied to the design of multifunctional permanent form for bridge pier in this paper. The basic properties and calculating constitutive model of ultra high performance cementitious composite are introduced briefly. According to momental theory of thin-walled shell, the analytical solutions of structural behavior parameters including circumferential stress, longitudinal stress and shear stress are derived for UHPCC thin-walled circular tube. Based on relevant code of construction loads (MHURD of PPC 2008), the calculating parameter expression of construction loads for UHPCC thinwalled circular tube is presented. With geometrical dimensions of typical pier, the structural behavior parameters of UHPCC tube under construction loads are calculated. The effects of geometrical parameters of UHPCC tube on structural behavior are analyzed and the design advices for UHPCC tube are proposed. This paper shall provide a scientific reference for UHPCC permanent form design and UHPCC hybrid structure application.

Key Words

Ultra high performance cementitious composite; pier column; permanent form, construction loads

Address

X.G. Wu : School of Civil Engineering, Harbin Institute of Technology, Harbin, China X.Y. Zhao : School of Architecture Engineering, Harbin Engineering University, Harbin, China S.M. Han : School of Civil Engineering, Kumoh National Institute of Technology, Gumi, Korea

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