Assessment of the effects of wind loading due to climate change on the reliability of steel pitched-roof portal frames

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-03-04 DOI:10.1016/j.tws.2025.113141

Milena Janković, Filip Ljubinković, Helena Gervásio, Luís Simões da Silva

引用次数: 0

Abstract

This paper investigates the reliability of steel structures considering the effects of climate change on wind loading. This assessment is based on 3 climate-change scenarios for the reference wind speed for a specific region in Portugal. The reliability analysis for typical steel pitched-roof portal frames is carried out using the Monte Carlo method, considering simultaneously loading and resistance as random. A design point search method, coupled with an Importance Sampling formulation for multiple load combinations is proposed and implemented, and compared with crude Monte Carlo simulation. It is shown that the proposed method can provide accurate results at a fraction of the number of simulations that are required using the crude Monte Carlo simulation. Finally, the increased probability of failure for the load combinations where the wind is the leading action is quantified for the assumed climate change scenarios.

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.