Abstract

Due to the high in-plane stiffness and strength capacity of cross-laminated timber (CLT) panels, the mechanical behavior of CLT shear walls is mainly influenced by the mechanical performances of the connections. Several calculation models have been proposed considering the mechanical anchors effectiveness only along their primary direction. However, recent studies showed a relatively high stiffness and capacity of new typologies of angle brackets when subjected to uplift vertical loads, such as for the wall-to-floor Titan V (TTV) angle bracket, developed to obtain high mechanical performances along both the vertical-tensile and horizontal-shear direction. In this paper a study on CLT shear walls anchored with TTV angle bracket is presented. The aim of the work is to investigate the effects of the coupled shear-tension behavior of the connections at the wall level and the effectiveness of TTV as an alternative to traditional mechanical anchors. The paper presents results from full-scale experimental tests and finite-element (FE) numerical analyses in SAP2000, where an innovative macroelement has been developed to model the TTV coupled shear-tension behavior. The effects of the plastic load redistributions of the TTV angle bracket on the global mechanical behavior of the CLT shear wall are discussed.

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Data Availability Statement

Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.

Acknowledgments

The company Rothoblaas is acknowledged for the financial support given for the execution of the experimental campaign presented in the article. Special thanks to Eng. Riccardo Fanti for the support given in the FE analyses.

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Go to Journal of Structural Engineering
Journal of Structural Engineering
Volume 147Issue 7July 2021

History

Received: Jun 18, 2020
Accepted: Jan 13, 2021
Published online: Apr 26, 2021
Published in print: Jul 1, 2021
Discussion open until: Sep 26, 2021

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Researcher, Building Rehabilitation and Timber Engineering, Univ. of Kassel, Kurt-Wolters-St. 3, Kassel 34125, Germany (corresponding author). ORCID: https://orcid.org/0000-0001-6234-4616. Email: [email protected]
Researcher, Institute of Bioeconomy, National Research Council of Italy, Via Biasi 75, San Michele all’Adige 38010, Italy. ORCID: https://orcid.org/0000-0003-2971-7390. Email: [email protected]
Andrea Polastri [email protected]
Researcher, Institute of Bioeconomy, National Research Council of Italy, Via Biasi 75, San Michele all’Adige 38010, Italy. Email: [email protected]
Marinella Fossetti [email protected]
Associate Professor, Faculty of Engineering and Architecture, Kore Univ. of Enna, Cittadella Universitaria, Enna 94100, Italy. Email: [email protected]
Professor, Dept. of Civil, Construction-Architectural and Environmental Engineering, Univ. of L’Aquila, Via Gronchi 18, L’Aquila 67100, Italy. ORCID: https://orcid.org/0000-0002-9178-7501. Email: [email protected]
Werner Seim [email protected]
Professor, Building Rehabilitation and Timber Engineering, Univ. of Kassel, Kurt-Wolters-St. 3, Kassel 34125, Germany. Email: [email protected]

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