Lateral-torsional buckling behavior of castellated steel beams with sinusoidal web openings: a parametric study

被引：0

作者：

Rohit Rajendra Kurlapkar ^{[1
]}

Varun Jadhav ^{[1
]}

Ajinkya Hasabe ^{[2
]}

机构：

[1] Shivaji University,Department of Civil Engineering, Rajarambapu Institute of Technology

[2] Savitribai Phule Pune University,Bharati Vidyapeeth’s College of Engineering

来源：

Asian Journal of Civil Engineering | 2025年 / 26卷 / 4期

关键词：

Castellated beam; Lateral torsional buckling; Non-linear finite element analysis; Sinusoidal opening; Slenderness;

D O I：

10.1007/s42107-025-01268-0

中图分类号：

学科分类号：

摘要：

This study presents a comprehensive numerical investigation into the lateral-torsional buckling behavior of castellated steel beams with sinusoidal openings, emphasizing the interaction of critical geometric and material parameters. A detailed Finite Element model was developed to analyze seventy-two beams, with variations in span length, steel grades (250 MPa, 460 MPa, and 690 MPa), web slenderness, and flange slenderness. The results demonstrate that higher steel grades significantly enhance both the load-carrying capacity and buckling resistance, underscoring the importance of material selection in structural performance. Furthermore, optimizing geometric parameters, such as flange-web slenderness ratios, was found to improve overall stability, with short-span beams exhibiting superior resistance to buckling compared to their long-span counterparts. These findings provide valuable insights into the behavior and design of castellated beams, offering a framework for enhancing structural efficiency and reliability in engineering applications.

引用

页码：1583 / 1594

页数：11