Mechanical behaviour of a novel steel dovetail joint subjected to axial compression loading

Mashrah, W.A.H.; Chen, Zhihua; Liu, Hongbo; Amer, Mohammed

doi:10.1016/j.engstruct.2021.112852

Cited by 8 publications

(3 citation statements)

References 19 publications

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“…A bolt-column-plate joint [13] has enough out-of-plane rotational stiffness, but is weak under in-plane bending. Ball-cylinder joints [14], pre-embedded bolt joints [15,16], semi-rigid pin joints [17,18], dovetail joints [19][20][21][22], assembled hub joints [23][24][25], and SLO joints [26] require high installation accuracy since they connect shell members by threading the bolts into holes with internal threads instead of conventional bolt holes with installation clearance. Prestressed high-strength bolt joints [27] and semi-rigid pin joints [17,18] have complex joint details, similar to precision mechanical parts.…”

Section: Introductionmentioning

confidence: 99%

Rotational Stiffness Investigation and Parametric Analysis of a Novel Assembled Joint in Lattice Shells

Xu,

Zhu,

et al. 2024

Buildings

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Although there are currently many types of lattice shell joints with different characteristics, assessing the flexural capacity of lattice shell joints is always a great challenge. In this paper, a fan-shaped assembled joint and a welded joint for comparison were subjected to bending tests to investigate the flexural behavior and rotational stiffness of the assembled joint. The strain distribution, load–displacement curve, moment–rotation curve, and damage modes of key parts were analyzed to determine the vulnerable parts of the joints. Our test results show that, with an initial rotational stiffness of about one third of that of the welded joint, the assembled joint specimen exhibits the obvious characteristics of a semi-rigid joint. The finite element analysis results were in good agreement with the experimental results. The results of our parametric analysis show that the rotational stiffness and ultimate moment of the assembled joint increase with increases in the spacing of the bolts and the number of bolts. The performance of the high-strength bolts had a significant influence on the flexural stiffness of the assembled joints. The spacing of the bolts and the number of bolts for the assembled joint are suggested to be greater than the height of the member section and more than three, respectively. The proposed theoretical formula can approximately simulate the initial rotational stiffness of the joint. More in-depth investigations are required in the future for assessing the mechanical behavior of FSA joints subjected to combined bending–compression loads.

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Section: Introductionmentioning

confidence: 99%

Rotational Stiffness Investigation and Parametric Analysis of a Novel Assembled Joint in Lattice Shells

Xu,

Zhu,

et al. 2024

Buildings

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“…The influence of random variables such as angles and amplitudes of initial curvature on the ultimate load of the reticulated shell was investigated, and an improved tolerance modal method was proposed, which could effectively calculate the minimum bearing load with initial curvature. Moreover, series of studies have been done on the semi-rigid joints in steel framing structures and space structures [26][27][28][29]. Hiyama [30] conducted load tests and numerical simulations on the aluminum alloy reticulated shell models composed of tubular members and spherical joints to discuss the buckling response.…”

Section: Introductionmentioning

confidence: 99%

Rotational Resistance Test of a New Aluminum Alloy Penetrating (Aap) Joint System

2023

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Aluminum alloy penetrating (AAP) joint is an improved form of the Aluminum Alloy Temcor (AAT) joint system consisting of one penetrating member, four short members, gussets, bolts and a U-shaped connector. The rotational resistance performance of AAP joints is investigated by a static out-of-plane flexural test. The specific experimental parameters include the gusset thickness (6 mm and 12 mm) and shape (circular and X-shaped). The differences between penetrating and short members in AAP joints are analyzed, and the influence of thicknesses and shapes of gusset on rotational resistance behavior of the joints is analyzed. The establishment of the finite element model of the AAP joint system in this paper considers the effects of bolt pre-tightening force, installation gap and friction between contact surfaces. The M-Φ curves and damage patterns are obtained by numerical simulation. The detailed comparative analysis between AAP joint numerical simulation and test results verifies the accuracy of the numerical model.

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“…Therefore, there is still room for a solution consisting of solid and completely pure wood, dovetail wood board elements (DWBEs) [23]. Numerous studies have been conducted in the literature on the technological, ecological, and economic aspects of EWPs in construction with different building solutions [24] such as [25][26][27][28][29][30], and there is limited understating of DWBEs, which mostly includes structural analysis of connection details (e.g., [31][32][33][34][35][36][37][38][39]). Here, the dovetail wood board elements (DWBEs) can be defined as solid/massive and pure wood structural elements such as floor Engineered Wood Products for Construction 4 slabs that use plug-in dovetail form in the joint detail and do not use adhesives and metal connections.…”

Section: Introductionmentioning

confidence: 99%

Various Geometric Configuration Proposals for Dovetail Wooden Horizontal Structural Members in Multistory Building Construction

Ilgın¹,

Karjalainen²,

Koponen³

2022

Engineered Wood Products for Construction

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Adhesives and metal fasteners have an important place in the content of engineered wood products (EWPs). However, adhesives may cause toxic gas emissions due to their petroleum-based nature, while metal fasteners may adversely affect the reusability of these products. These issues also raise important questions about the sustainability and environmental friendliness of EWPs. Thus, there is still room for a solution that is solid and completely pure wood, adhesive- and metal-connectors-free dovetail wood board elements (DWBEs). There are many studies on the technological, ecological, and economic aspects of these products in the literature, but no studies have been conducted to assess the technical performance of DWBEs. This chapter focuses on DWBEs by proposing various geometric configurations for horizontal structural members in multistory building construction through architectural modeling programs. In this architectural design phase, which is one of the first but most important stages, the proposed configurations are based on a theoretical approach, considering contemporary construction practices rather than structural analysis or mechanical simulation. Further research, including technical performance tests, will be undertaken after this critical phase. It is believed that this chapter will contribute to the dissemination of DWBEs for innovative architectural and structural applications, especially in multistory wooden structures construction.

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Mechanical behaviour of a novel steel dovetail joint subjected to axial compression loading

Cited by 8 publications

References 19 publications

Rotational Stiffness Investigation and Parametric Analysis of a Novel Assembled Joint in Lattice Shells

Rotational Stiffness Investigation and Parametric Analysis of a Novel Assembled Joint in Lattice Shells

Rotational Resistance Test of a New Aluminum Alloy Penetrating (Aap) Joint System

Various Geometric Configuration Proposals for Dovetail Wooden Horizontal Structural Members in Multistory Building Construction

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