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

Shu, Zhan; Li, Zheng; He, Minjuan; Chen, Fei; Hu, Chao; Feng, Liang

doi:10.1007/s43452-020-00073-7

Cited by 14 publications

(3 citation statements)

References 35 publications

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“…Thus, the safety of glulam beam-column structure mainly depends on the bearing capacity of connections in timber structures. Connections in glulam beamcolumn structure are generally connected by steel plates and bolts [3][4][5]. The bolted connections characterized by clear force transmission and easy installation [6] have some moment-resisting capacities.…”

Section: Introductionmentioning

confidence: 99%

Analytical Investigation into the Rotational Performance of Glulam Bolted Beam-Column Connections under Coupled Bending Moment and Shear Force

Zhang¹,

Luo²,

Sun³

et al. 2023

Journal of Renewable Materials

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Considering the glulam beam-column connection form and the number of bolts, monotonic loading test and finite element analysis was carried out on 9 connection specimens in 3 groups to study the rotational performance and failure mode of the connection. The test results revealed that compared with U-shaped connectors, T-shaped connectors can effectively improve the ductility of connections, and the increase in the number of bolts can reduce the initial stiffness and ductility of connections. By theoretical analysis, formulas for calculating the initial stiffness and ultimate moment of connections were deduced. Subsequently, the moment-rotation theoretical model of connections was established based on the formulas, which were validated according to the test data and simulation results. The proposed model can not only improve the current theoretical system of heavy-duty glulam beam-column structure but also provide a theoretical basis for calculating the mechanical properties of the glulam beam-column connection. KEYWORDSBeam-column connection; mechanical properties; stiffness; ultimate moment So far, scholars all over the world have done a lot of work on the bolted glulam beam-column connection. Lam et al. [10] conducted monotonic and cyclic loading tests on T-shaped bolted beamcolumn connections with slotted steel plates. The test results showed that there exists dowel bearing pressure and splitting perpendicular to the grain when the connections fail. Shu et al. [11] conducted a comprehensive study on the rotational performance of bolted connections with slotted steel plates and put This work is licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Section: Introductionmentioning

confidence: 99%

Analytical Investigation into the Rotational Performance of Glulam Bolted Beam-Column Connections under Coupled Bending Moment and Shear Force

Zhang¹,

Luo²,

Sun³

et al. 2023

Journal of Renewable Materials

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show abstract

“…Joints are important components for reticulated dome structure, which not only determine the lay-out of the wood members but also affect the overall structural performance. A variety of joint types (Sasaki et al 1991;Shan et al 1997;Shu et al 2020;Shu et al 2019) have been developed during the application of wood reticulated dome projects. Among them, steel hub joints with bolted steel side plates (abbreviated as SHJ-BSSP joint in the current paper) is one of the most commonly used type in large span wood reticulated domes.…”

Section: Monotonic and Cyclic Loading 1 Introductionmentioning

confidence: 99%

“…When assembling the joints on site, all tensile bolts are tightened such that the end section of the wood member is in close contact with the outer wall of the steel hub. It's the advantageous bearing between the end section of wood member and the wall of steel hub that makes the flexural stiffness and load-carrying capacity of SHJ-BSSP joints significantly higher than other joints (Shu et al 2020), e.g. those avoid bearing of glulam member end and employs only the shear bolts (Shu et al 2019;Wang et al 2021).…”

Section: Monotonic and Cyclic Loading 1 Introductionmentioning

confidence: 99%

Study on the rotational performance of steel hub joints of wood reticulated domes subjected to monotonic and cyclic bending moment

Li,

Zhu,

Niu

2023

Preprint

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Steel hub joints with bolted steel side plates (SHJ-BSSP) has been widely adopted in wood reticulated domes, yet few studies have been conducted on its mechanical behaviour. This paper presents a refined finite model for SHJ-BSSP joints, which is verified against existing test results and used for further parametric study on the rotational performance of SHJ-BSSP joints subjected to monotonic and cyclic bending moment. The flexural stiffness and capacity of joints about the strong and weak axes is investigated, accounting for influences from axial compression and the number of shear bolts. The results indicate that the joints, under monotonic loading, demonstrate typical elastic-plastic behavior. Higher compression force and more shear bolts can enhance rotational stiffness and ultimate moment of the joint, while decreasing the ductility due to the earlier yielding of wood within the bearing region of the joint. Under cyclic loading, the hysteretic curves of joints exhibit an obvious pinched hysteretic behavior due to the clearances within the joint. As a result of the second order bending moment stemming from axial compression force, the slipping region of the hysteretic curves tend to deviate from the horizontal coordinate axis. Furthermore, larger compression and more shear bolts can increase the total energy dissipation of the system while decreasing the proportion of energy dissipation from the bolted connections. Conclusions are drawn regarding the feature and failure mechanism of the SHJ-BSSP joints, which are helpful guidelines for practical design.

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Study on the rotational performance of steel hub joints of wood reticulated domes subjected to monotonic bending moment

Li,

Wang,

Qian

et al. 2024

Eur. J. Wood Prod.

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

Cited by 14 publications

References 35 publications

Analytical Investigation into the Rotational Performance of Glulam Bolted Beam-Column Connections under Coupled Bending Moment and Shear Force

Analytical Investigation into the Rotational Performance of Glulam Bolted Beam-Column Connections under Coupled Bending Moment and Shear Force

Study on the rotational performance of steel hub joints of wood reticulated domes subjected to monotonic and cyclic bending moment

Study on the rotational performance of steel hub joints of wood reticulated domes subjected to monotonic bending moment

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