Long-term performance of post tensioned cross laminated timber (CLT) shear walls: hygro mechanical model validation and parametric analysis

• Autorzy: Zeng Xiuzhi , He Minjuan , Li Zeng , Luo Qi

Identyfikatory

DOI

10.1007/s43452-022-00389-6

• Języki publikacji: EN

Abstrakty

EN

Post-tensioned cross-laminated timber (CLT) shear wall structure is an innovative solution of earthquake resilient structures. The prestressing force of post-tensioned CLT shear walls remarkably affect the structural seismic performance. Due to the time-dependent elastic, creep, and environmental deformation of wood, the prestressing force will change over the service life of the structure. In this study, a hygro-mechanical numerical model for simulating the time-dependent performance of post-tensioned CLT shear walls was established. Moisture diffusion analysis, time-dependent deformation calculation and prestressing force updating were incorporated in the proposed model, which was further validated based on experimental results. Subsequently, a series of parametric analysis was conducted to study the effect of various material properties, geo metric characteristics, environmental conditions and prestressing forces on the long-term performance of post-tensioned CLT shear walls. The analytical results of the key parameters such as the CLT shear wall dimension, the initial prestressing force, and the environmental temperature and relative humidity were presented and discussed. Practical suggestions for enhancing the long-term safety of post-tensioned CLT shear wall structures were proposed.

Słowa kluczowe

EN

cross laminated timber; wall laminated timber; long-term performance; environmental impact

PL

drewno klejone krzyżowo; ściana z drewna klejonego; wydajność; wpływ na środowisko

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2022
• Tom: Vol. 22, no. 2
• Strony: art. no. e68, 1--18
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., wykr.

Twórcy

autor

Zeng Xiuzhi

• Department of Structural Engineering, Tongji University, Shanghai, China

autor

He Minjuan

• Department of Structural Engineering, Tongji University, Shanghai, China

autor

Li Zeng

• Department of Structural Engineering, Tongji University, Shanghai, China

• https://orcid.org/0000-0003-1227-8168

autor

Luo Qi

• Department of Structural Engineering, Tongji University, Shanghai, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)