Short-term creep test of shear adhesive joints in Timber-Concrete Composites

openaccess, Vol. 618 (2) 2024 / piątek, 23 lutego, 2024

(Open Access)

DOI: 10.15199/33.2024.02.02

Śliwa-Wieczorek Klaudia, Derkowski Wit, Binder Eva. 2024. Short-term creep test of shear adhesive joints in Timber-Concrete Composites. Volume 618. Issue 2. Pages 6-10. Article in PDF file

Accepted for publication: 19.01.2024

This paper presents the results of a study of short-term rheological strain increments in a push-out test for double-lap glued joints. A total of 15 specimens consisting of cross laminated timber (CLT) elements and precast concrete slabs were tested. The joint between the elements was made as a glued joint using innovative 3mmthick prefabricated flexible joints in three bonding configurations. The aim of the study was to investigate the influence of the adhesive joint geometry (typeAwith 600 cm2 glue, B – 200 cm2 in strips parallel to the load axis and C – 200 cm2 in strips in the perpendicular direction) on the initial deformation increase over time. Creep phenomenon was shown to be nonlinear for an initial time range of t1 = 800 s regardless of the adhesive area, and then to increase in a linearmanner. In the tests carried out on strip joints, the increments of initial creep were obtained to be about 10% smaller for joints arranged in the load direction than for those arranged in the perpendicular one. It was also shown that the creep values are not directly proportional to the magnitude of the shear stress.
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mgr inż. Klaudia Śliwa-Wieczorek, Politechnika Krakowska, Wydział Inżynierii Lądowej ORCID: 0000-0002-4148-1491
dr hab. inż. Wit Derkowski, prof. PK, Politechnika Krakowska, Wydział Inżynierii Lądowej ORCID: 0000-0001-6133-3624
dr inż. Eva Binder, Linnaeus University, Växjö, Sweden ORCID: 0000-0002-5699-4492

mgr inż. Klaudia Śliwa-Wieczorek, Politechnika Krakowska, Wydział Inżynierii Lądowej ORCID: 0000-0002-4148-1491

Full paper:

DOI: 10.15199/33.2024.02.02

Article in PDF file