Linear elastic iterative method for stability ultimate capacity of equal-leg angle towers

• Published in: Scientific reports Vol. 14; no. 1; pp. 30740 - 19
• Main Authors: Han, JingJing, Zhang, Wei, Yang, LuFeng
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 28.12.2024; Nature Publishing Group; Nature Portfolio
• Subjects: 639/166; 639/166/986; Equal-leg angle section; Homogeneous generalized yield function; Homogenization; Humanities and Social Sciences; Iterative methods; Leg; Linear elastic iterative method; Mathematical models; Mechanical properties; multidisciplinary; Numerical analysis; Regression analysis; Science; Science (multidisciplinary); Stability ultimate capacity; Tower; Equal-leg angle section; Tower; Stability ultimate capacity; Homogeneous generalized yield function; Linear elastic iterative method
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-024-80738-y

An efficient linear elastic iterative method is proposed for the stability ultimate capacity of equal-leg angle towers, using an elastic modulus adjustment strategy in this paper. The angle steel stability generalized yield function (GYF) of AS/NZS4600 is selected, on which a precise homogeneous generalized yield function (HGYF) is developed through dimensionless analysis and regression. Based on the HGYF, the element bearing ratio is proposed as a dynamic threshold for distinguishing high-stress and low-stress elements in equal-leg angle elements. Then, an adaptive elastic modulus adjustment strategy is proposed for the linear elastic iterative analysis of the stability ultimate capacity of equal-leg angle towers. Compared to analytical solutions and traditional numerical methods, it can be observed that the linear elastic iterative method for the stability ultimate capacity of equal-leg angle towers is accurate and efficient.