Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6757897 | Marine Structures | 2018 | 27 Pages |
Abstract
This paper aims to study the structural behavior of tubular KT-joints subjected to axial loading at fire induced elevated temperatures. At first, a finite element (FE) model was developed and validated against the data available from experimental tests. Then, a set of 810 FE analyses were performed to study the influence of temperature and dimensionless geometrical parameters (β, γ, θ, and Ï) on the ultimate strength and initial stiffness. The joints were analyzed under two types of axial loading and five different temperatures (20â¯Â°C, 200â¯Â°C, 400â¯Â°C, 550â¯Â°C, and 700â¯Â°C). Up to now, there has not been any design formula available for determining the ultimate strength of KT-joints at elevated temperatures. Hence, after parametric study, a new equation was developed through nonlinear regression analyses, for calculating the ultimate strength of KT-joints subjected to axial loading at elevated temperatures.
Related Topics
Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Neda Azari Dodaran, Hamid Ahmadi, Mohammad Ali Lotfollahi-Yaghin,