Scholarlink

<p>Steel-concrete composite shear walls offer a promising alternative to conventional reinforced concrete shear walls for resisting lateral forces in structures. This study investigates the performance of slender composite shear walls comprising cold-formed steel faceplates on either side of a concrete core, connected through shear connectors to ensure composite action. Two faceplate geometries, namely the Flat and novel Square profiles, were examined through experimental testing under in-plane monotonic lateral loading and combined axial and lateral loading. Complementary finite element analyses were conducted and validated against the experimental results to accurately capture the structural response. Furthermore, Axial-Moment interaction curves were developed for both wall configurations, demonstrating the beneficial effects of axial load on flexural performance due to concrete confinement. A newly developed consolidated interaction curve is proposed to facilitate the practical design of flat and square-profiled cold-formed steel-concrete composite shear walls. It was observed that the application of axial loads equivalent to 20% and 30% of the ultimate axial capacity led to a moment capacity enhancement of 22% and 37% for the flat and square-profiled walls, respectively. The flat composite wall specimen demonstrated superior performance under axial load-dominated conditions, whereas the square-profiled composite specimen exhibited enhanced capacity in moment-dominated loading scenarios.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Development of axial–moment interaction curves for flat and square-profiled cold-formed steel–concrete composite shear walls using experimental and numerical investigations

  • 期刊论文

  • 发表日期：

    2026年7月1日

查看全文
  • Uma Chandru,
  • R. Senthilkumar

摘要

Steel-concrete composite shear walls offer a promising alternative to conventional reinforced concrete shear walls for resisting lateral forces in structures. This study investigates the performance of slender composite shear walls comprising cold-formed steel faceplates on either side of a concrete core, connected through shear connectors to ensure composite action. Two faceplate geometries, namely the Flat and novel Square profiles, were examined through experimental testing under in-plane monotonic lateral loading and combined axial and lateral loading. Complementary finite element analyses were conducted and validated against the experimental results to accurately capture the structural response. Furthermore, Axial-Moment interaction curves were developed for both wall configurations, demonstrating the beneficial effects of axial load on flexural performance due to concrete confinement. A newly developed consolidated interaction curve is proposed to facilitate the practical design of flat and square-profiled cold-formed steel-concrete composite shear walls. It was observed that the application of axial loads equivalent to 20% and 30% of the ultimate axial capacity led to a moment capacity enhancement of 22% and 37% for the flat and square-profiled walls, respectively. The flat composite wall specimen demonstrated superior performance under axial load-dominated conditions, whereas the square-profiled composite specimen exhibited enhanced capacity in moment-dominated loading scenarios.