Finite Element Study on Mechanical Properties of Recycled Concrete Filled Square Steel Tubular Short Columns

doi:10.4236/oalib.1108544

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Open Access Library Journal 9 2022

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Finite Element Study on Mechanical Properties of Recycled Concrete Filled Square Steel Tubular Short Columns

DOI: 10.4236/oalib.1108544, PP. 1-14

Qianpeng Nie

Subject Areas: Civil Engineering

Keywords: Square Hollow Composite Steel Tube Recycled Concrete Short Column, Finite Element Analysis, Eccentric Compression, Ultimate Bearing Capacity

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Abstract

Using finite element software, the seven specimens are used respectively to set square cross section with circular cross section and seven sets of the combination of the steel tube recycled concrete short column and a solid section of recycled concrete filled steel tubular short column determine the strength of recycled concrete, eccentricity, the outer steel tube wall thickness and steel yield strength for variables; static load analysis of the finite element model is established. The effects of various parameters on the load-longitudinal displacement and ultimate bearing capacity of specimens were simulated and analyzed. The results show that the ultimate bearing capacity and deformation capacity of square hollow sandwich recycled concrete short columns increase with the increase of concrete strength, the decrease of eccentricity, the increase of outer steel tube wall thickness and steel strength. Among the three different section forms, the square section sample has the highest stiffness and ultimate bearing capacity.

Cite this paper

Nie, Q. (2022). Finite Element Study on Mechanical Properties of Recycled Concrete Filled Square Steel Tubular Short Columns. Open Access Library Journal, 9, e8544. doi: http://dx.doi.org/10.4236/oalib.1108544.

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