PSI - Issue 36

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2021) 000 – 000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 36 (2022) 10–16

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors 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 pape r 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. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors Keywords: welded truss; material consumption of the truss; stress-strain state; welded rafter truss. 2 e h . V. hi en i e B - 1st Virtual International Conference “In service Damage of Materials: Diagnostics and Prediction” Material consumption optimization of a welded rafter truss made of angle profiles Yaroslav Shved*; Yaroslav Kovalchuk; Liudmyla Bodrova; Halyna Kramar; Natalya Shynhera Ternopil Ivan Puluj National Technical University, Ruska str., 56, Ternopil 46001, Ukraine

* Corresponding author. Tel.: +38-095-774-8913. E-mail address: shvedtntu@gmail.com

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors 10.1016/j.prostr.2021.12.076