Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Study of Initial Imperfection of Concrete-Filled Square Steel Tube Columns for Direct Analysis
The initial imperfection and residual stress play important roles in the buckling resistance of both structural system and structural members. The latest Standard for Design of Steel Structures (GB50017-2017) firstly introduces the direct analysis method for the stability design of steel structures in China. The equivalent initial imperfections for steel members have been well specified in this code. However, as an important part of modern structures, there is limited research on the initial imperfections of steel-concrete composite members in relevant regulations in China. Therefore, it is urgent to study the equivalent initial imperfections of steel-concrete members for direct analysis. This paper collects extensive experimental data on concrete-filled square steel tube columns (CFSSTC) for calibration of finite element models using software ABAQUS. The key factors affecting CFSSTC’s behaviors such as section dimensions, grades of steel and concrete, and width-to-thickness ratios have been taken into account. A comparative analysis for the CFSSTC with and without initial imperfections will be presented. From this study, the equivalent initial imperfection for CFSSTCs will be proposed for practical direct analysis of steel-concrete composite structures to achieve a safer and economical design without use of conventional effective length method.
Study of Initial Imperfection of Concrete-Filled Square Steel Tube Columns for Direct Analysis
The initial imperfection and residual stress play important roles in the buckling resistance of both structural system and structural members. The latest Standard for Design of Steel Structures (GB50017-2017) firstly introduces the direct analysis method for the stability design of steel structures in China. The equivalent initial imperfections for steel members have been well specified in this code. However, as an important part of modern structures, there is limited research on the initial imperfections of steel-concrete composite members in relevant regulations in China. Therefore, it is urgent to study the equivalent initial imperfections of steel-concrete members for direct analysis. This paper collects extensive experimental data on concrete-filled square steel tube columns (CFSSTC) for calibration of finite element models using software ABAQUS. The key factors affecting CFSSTC’s behaviors such as section dimensions, grades of steel and concrete, and width-to-thickness ratios have been taken into account. A comparative analysis for the CFSSTC with and without initial imperfections will be presented. From this study, the equivalent initial imperfection for CFSSTCs will be proposed for practical direct analysis of steel-concrete composite structures to achieve a safer and economical design without use of conventional effective length method.
Study of Initial Imperfection of Concrete-Filled Square Steel Tube Columns for Direct Analysis
Lecture Notes in Civil Engineering
Geng, Guoqing (Herausgeber:in) / Qian, Xudong (Herausgeber:in) / Poh, Leong Hien (Herausgeber:in) / Pang, Sze Dai (Herausgeber:in) / Zhang, Zijuan (Autor:in) / Xing, Jiale (Autor:in) / Liu, Yao-Peng (Autor:in) / Li, Guochang (Autor:in)
14.03.2023
16 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Concrete-filled square steel tube column , Initial imperfection , Direct analysis method , Finite element analysis (FEA) Engineering , Building Construction and Design , Structural Materials , Solid Mechanics , Sustainable Architecture/Green Buildings , Light Construction, Steel Construction, Timber Construction , Offshore Engineering
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