Structural Performance of the Steel-Bar-Reinforced Concrete-Filled Circular Thin Steel Tubular Columns Using High Slag Cement

Hirade, Tooru; Odajima, Nobuyuki; Kimura, Hideki; Kaneko, Hirofumi; Yonezawa, Takeshi

doi:10.3130/aijs.79.651

Cited by 2 publications

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“…There are nine buildings with the same dimensions and variable loads. The columns of these buildings were sized using different concrete strengths (25,30,35,40,45 and 50 N/mm 2 ). Given the possibility of using different types of cement in the execution phrase, a solution map with 108 alternatives was created.…”

Section: Materials and Geometrymentioning

confidence: 99%

“…The results indicate the viability of this alternative (24). In the manufacture of composite columns, the structural response of cement with a high slag content has also proven to be satisfactory (25,16). Meanwhile, structural steel manufacturers have successfully incorporated significant amounts of recycled steel scrap to minimize CO 2 emissions (26).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Design and Construction on the Carbon Footprint of Reinforced Concrete Columns in Residential Buildings

et al. 2019

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Constructing structural elements requires high performance materials. Important decisions about geometry and materials are made during the design and execution phases. This study analyzes and evaluates the relevant factors for reinforced concrete columns made in situ for residential buildings. This article identifies and highlights the most sensitive aspects in column design: geometry, type of cement, and concrete strength performance. Using C-40 concrete mixed with CEM-II proved to cut costs (up to 17.83%) and emissions (up to 13.59%). The ideal combination of rebar and concrete is between 1.47 and 1.73: this is the percentage of the ratio between the area of rebar and the area of the concrete section. The means used during the execution phase affect resource optimization. The location of a building has only a minor impact, wherein the wind zone exercises more influence than topographic altitude.

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Section: Materials and Geometrymentioning

confidence: 99%