Bolted joints for small and medium reticulated timber domes: experimental study, numerical simulation, and design strength estimation

• Autorzy: Shu Zhan , Li Zheng , He Minjuan , Chen Fei , Hu Chao , Liang Feng

Identyfikatory

DOI

10.1007/s43452-020-00073-7

• Języki publikacji: EN

Abstrakty

EN

This paper proposes a new type of bolted glulam joint for small-span and medium-span reticulated timber dome structures. The joint fastens the timber elements and the angled slotted-in steel plates together with steel bolts. Reasonably simplified experiments were designed and conducted to understand the mechanical properties of the proposed joint. Finite element models were also developed and calibrated with the tested results. A four-line model was provided to explain the mechanical properties of the joints, which were observed from the tests and simulations. To facilitate the future use of the proposed joint, theoretical derivations were provided to estimate its mechanical features. According to the estimation equations, bilinear moment–rotation curves could be easily obtained for the joints with different wood species, member sizes, joint designs, and/or bolt diameters. Finally, full-size structural models were created to investigate the static stability of K6 single-layered reticulated timber domes with the proposed joints. The influences on the ultimate structural stability capacity from the span, the rise-to-span ratio, the joint model (i.e., stiffness), the initial geometric imperfection introduced from the construction, and the load distribution were systematically investigated.

Słowa kluczowe

EN

reticulated dome; timber structure; spatial structure; bolted joint; stability analysis

PL

konstrukcja drewniana; struktura przestrzenna; połączenie śrubowe

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2020
• Tom: Vol. 20, no. 3
• Strony: 131--154
• Opis fizyczny: Bibliogr. 54 poz., rys., wykr.

Twórcy

autor

Shu Zhan

• Department of Civil Engineering, Shanghai University, Shanghai 200444, China

autor

Li Zheng

• Department of Structural Engineering, Tongji University, Shanghai 200092, China

autor

He Minjuan

• Department of Structural Engineering, Tongji University, Shanghai 200092, China

autor

Chen Fei

• Department of Structural Engineering, Tongji University, Shanghai 200092, China

autor

Hu Chao

• Department of Structural Engineering, Tongji University, Shanghai 200092, China

autor

Liang Feng

• Department of Structural Engineering, Tongji University, Shanghai 200092, China
• Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)