Built-In Spiral Ripe Thin-Walled Square Steel Tube Concrete Column of Nonlinear Finite Element Analysis

Abstract:

For the problem of square concrete-filled steel tube (CFST) under the action of axial pressure, concrete received local compression and buckling occurred in the application of thin-walled steel pipe.Using built-in spiral reinforcement to strengthen the constraints of thin-walled square steel tube to core concrete. And by using ANSYS program established the built-in spiral reinforcement of thin-walled square steel tube concrete composite column 3 d finite element model, and the results show that spiral reinforcement strengthen the constraint effect, increase the ultimate bearing capacity of the composite columns of square steel tube by 7.41%; And with stiffening rib and rod measures were compared, built-in spiral ripe construction is convenient, easily applied.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 678-681
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.678
• Online since: May 2013
• Authors: Li Sha Wang, Bai Shou Li
• Keywords: Concrete-Filled Steel Tube (CFST), Core Concrete, Nonlinear Finite Element, Spiral Reinforcement, Ultimate Capacity

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