| ماهنامه| ISC | فنی،مدیریتی،حقوقی| اعتبار،چابکی،پاسخگویی|
مقاله پژوهشی مهندسی عمران-سازه
Investigating the effect of nano-silica and micro-silica on the mechanical characteristics of high strength concrete

رضا بذرگری؛ سعیده ضیا دیدگان؛ مهدی بهمن زاده

دوره 5، شماره 8 ، آبان 1402، صفحه 11-25

https://doi.org/10.22034/cpj.2023.425498.1232

چکیده
  Today, the role of concrete as the most widely used building material in the development of the civil and economic infrastructure of societies is undeniable. On the other hand, the production of cement requires the consumption of natural resources and the release of a significant amount of carbon dioxide into the environment, so the need to revise and change the ingredients of concrete in such a way as to meet the needs of construction and to minimize risks and damage to the environment. It is necessary that pozzolans are among the materials that can be used to improve this.Iran is one of the countries ...  بیشتر

مقاله پژوهشی مهندسی عمران-سازه
Study on Buckling of Concrete-filled double skin steel tubular columns

حسین خسروی؛ عاطفه عادلیان حقیقی

دوره 5، شماره 8 ، آبان 1402، صفحه 26-36

https://doi.org/10.22034/cpj.2024.436277.1254

چکیده
  The concrete-filled double skin steel tubular columns (CFDST) are regarded as one of the composite columns consisting of double steel tubes with square or circular hollow sections and the space between two skins is filled with concrete. These columns possess several advantages, including a proper performance during loading, smaller dimensions, cost-effectiveness, protection of the concrete surface against the damage, others compared to conventional columns. In this paper, the buckling of the concrete-filled double skin steel tubular columns subjected to the axial compression was assessed using ...  بیشتر