Year: 2022
Type: article
Abstract: Welded rafter trusses are widely used in civil engineering due to the optimal combination of high technological effectiveness and ability to operate under various force scenarios. However nowadays an important role in the construction of long-span building structures is played by saving materials, and consumption optimization. This paper reports on the study of 18000 × 3600 mm rectangular welded rafter truss, made of angle profiles with different shelf lengths but the same wall thickness. The method of computer simulation experiment has been applied using ANSYS Workbench 14.5 software package. The scheme of basing, typical for such construction, was accepted: basing on the extreme nodes of the bottom chord and static loading on two intermediate nodes on the top chord. The parameters of the stress-strain state in the structural elements and in places of their connection from the loading start to the onset of the limit state have been identified. It has been found that according to the ratio of material capacity and durability of the structure, the highest indicators are provided by the truss with angle bars of 120x120x10 mm. The research technique accepted in the paper and the obtained results can be used in the design of welded truss construction and in assessing the strength of existing trusses for the purpose of their reconstruction and strengthening.
Source: Procedia Structural Integrity
Institution: Ternopil Ivan Pului National Technical University
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4211056771