ce/papers最新文献

The Component-Based Finite Element Method (CBFEM) is the quite commonly used method to analyse and design connections of steel structures. It is the combination of the analytical component method and the numerical Finite Element Method (FEM). In this paper, the CBFEM is applied to analyse steel beams and columns at elevated temperature. The main objective of this study is to verify the CBFEM for predicting the resistance of steel members at elevated temperatures.

In recent years, the attention grew toward sustainability issues. This led to the popularity of residential buildings made of cold formed steel profiles. In these systems the lateral bracing is provided by the shear walls. Their complex response calls for the design by testing approach. At the University of Trento an experimental study is in progress of the shear wall response under monotonic and cyclic loading. Five shear wall configurations differing in the steel skeleton and sheathings type are comprised in the programme. The paper presents the main features of the testing set-up and the preliminary results related to two shear wall configurations. The key role of sheathing-to-steel framing connections is pointed out.

In this paper, the design of austenitic stainless steel channel sections subjected to minor axis bending, specifically with tension in the web (“u” orientation) is analyzed. The values of moment resistance are predicted using Eurocode 3 criteria and the Continuous Strength Method (CSM), which are then compared with numerical models to assess effectiveness. The modeling is performed through ANSYS and calibrated with literature tests. It was found that Eurocode presents a considerable disparity in results, as well as an overly cautious response (on average, half the numerical load). The CSM reflects the performance more accurately but still with a certain level of conservatism (on average, around 35% lower).

There is a growing interest in the construction industry to use timber to make structures more sustainable. This article discusses using mass timber flooring panels as part of steel-framed buildings, covering performance, behaviour and best practice, market challenges and sustainability benefits. Embodied carbon comparisons were completed to demonstrate the environmental benefits of hybrid steel frames with mass timber floors and how they perform against voluntary industry targets set to tackle the climate crisis.

Steel beams with sequential web openings present benefits compared to plain webbed sections, especially higher bending stiffness. However, openings can affect structural behavior, requiring modifications to verification methods. In this study, a new proposal was developed to verify steel profiles with sequential web openings, based on Eurocode 3. The calculation leads to the determination of the reduction in the resistant capacity of the section due to instabilities based on an imperfection factor related to the characteristic process of manufacturing these profiles. For this, an extensive numerical study was carried out, considering random distributions of residual stresses based on experimental data.

This paper focusses on a code analysis of the main industry codes used to determine the actions during ocean transportation for a modular design project. The scope of this study is for default motion cases on unrestricted weather conditions. The main industry codes are the Noble Denton (DNV) guidelines which are used in conjunction with the offshore ISO codes. This paper offers a comparison between the approaches given for the allowable stress design (ASD) and the load factor design (LRFD) according the DNV guidelines. This paper also offers a reference to the Eurocodes in regard to the terminology used and its level of reliability. This study also includes a worked example and a sensitivity analysis based on the type of vessel.