TY - GEN
T1 - Recent developments on the numerical algorithms for the analysis of steel and composite sections (ICASS'2018)
AU - Chen, Liang
AU - Liu, Si Wei
AU - Chan, Siu Lai
PY - 2018/12
Y1 - 2018/12
N2 - The calculations on the cross-section for obtaining the basic properties, i.e., stiffness and strength, are essential for the frame analysis and design using beam-column elements. For regular and simple section shapes, their properties can be easily computed via the closed-form equations. However, when facing to the analysis of the steel and composite sections with a complex shape and complicated material properties, the conventional hand-calculation method is inapplicable. Thus, the numerical analysis method based on the fiber section models is commonly used, but it requires huge computational efforts and usually deficient. Apart from that, our research team has developed the efficient and divergence-free numerical algorithms for arbitrary steel and concrete composite sections with the implementations into the software RCD 2016, where only the steel component is meshed into fibers while the concrete component is automatically divided into layers. A Quasi-Newton iteration method is proposed for determining the section strain distribution and it is numerically stable. This paper reviews the essential theory of the analysis method, as well as the recent developments on the RCD 2016 are summarized. Finally, several featured examples are given for demonstrating the accuracy.
AB - The calculations on the cross-section for obtaining the basic properties, i.e., stiffness and strength, are essential for the frame analysis and design using beam-column elements. For regular and simple section shapes, their properties can be easily computed via the closed-form equations. However, when facing to the analysis of the steel and composite sections with a complex shape and complicated material properties, the conventional hand-calculation method is inapplicable. Thus, the numerical analysis method based on the fiber section models is commonly used, but it requires huge computational efforts and usually deficient. Apart from that, our research team has developed the efficient and divergence-free numerical algorithms for arbitrary steel and concrete composite sections with the implementations into the software RCD 2016, where only the steel component is meshed into fibers while the concrete component is automatically divided into layers. A Quasi-Newton iteration method is proposed for determining the section strain distribution and it is numerically stable. This paper reviews the essential theory of the analysis method, as well as the recent developments on the RCD 2016 are summarized. Finally, several featured examples are given for demonstrating the accuracy.
KW - Cross-section Analysis
KW - Fibre Sections
KW - Numerical Method
KW - Quasi-Newton
KW - Residual Stress
KW - Steel and Concrete Composite
UR - http://www.scopus.com/inward/record.url?scp=85084951250&partnerID=8YFLogxK
U2 - 10.18057/ICASS2018.P.154
DO - 10.18057/ICASS2018.P.154
M3 - Conference article published in proceeding or book
AN - SCOPUS:85084951250
T3 - Proceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018
BT - Proceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018
A2 - Chan, Siu Lai
A2 - Chan, Tak-Ming
A2 - Zhu, Songye
PB - Hong Kong Institution of Steel Construction
T2 - 9th International Conference on Advances in Steel Structures, ICASS 2018
Y2 - 5 December 2018 through 7 December 2018
ER -