INFLUENCE OF CORNER COLUMN OFFSET ON THE DYNAMIC RESPONSE OF TIMBER FRAME STRUCTURES


Alexandru Mihai BUCALAU1, Dorina Nicolina ISOPESCU2, Nicolae ȚĂRANU3, Alexandrina Elena ANDON4

Abstract. This study investigates the influence of corner column positioning on the dynamic response of a timber frame structure through finite element numerical modeling. The analyzed structural model has plan dimensions of 2960 × 2960 mm and a height of 2800 mm. The structure is composed of solid softwood members with a cross-section of 90 × 180 mm. The parametric analysis considers the progressive inward displacement of the corner columns and its influence on the structural response. The investigation focuses on the variation of natural frequencies, mode shapes, internal force distribution, and global dynamic behavior for different geometric configurations. Particular attention is given to the influence of structural eccentricities on stiffness distribution and modal response. The numerical results indicate that modifications in column positioning affect the spatial stiffness and torsional behavior of the structural system.

Keywords: timber frame structures, dynamic analysis, finite element method, column offset.

DOI 10.56082/annalsarscieng.2026.2.106

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1PhD, Faculty of Architecture G. M. Cantacuzino, Gheorghe Asachi Technical University of Iasi, Iasi, Romania

2Prof., Faculty of Civil Engineering and Building Services, Gheorghe Asachi Technical University of Iasi, Iasi, Romania, Tehnical Science Academy of Romania, 26 Dacia Blvd. 030167, Bucharest, Romania

3Prof., Faculty of Civil Engineering and Building Services, Gheorghe Asachi Technical University of Iasi, Iasi, Romania, Tehnical Science Academy of Romania, 26 Dacia Blvd. 030167, Bucharest, Romania, The Academy of Romania Scientists 3 Ilfov Street, Sector nr 5,050663, Bucharest, Romania

4Senior Lecturer, Faculty of Architecture G. M. Cantacuzino, Gheorghe Asachi Technical University of Iasi, Iasi, Romania

PUBLISHED in

Annals Academy of Romanian Scientists Series on Engineering Sciences

Volume 18 no 2, 2026


ISSN PRINT 2066 – 6950

ISSN ONLINE 2066 – 8570