Experimental Study on the Stiffness of Steel Beam-to-Upright Connections for Storage Racking Systems

Dumbrava, Florin; Cerbu, Camelia

doi:10.3390/ma13132949

Cited by 11 publications

(13 citation statements)

References 17 publications

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“…The aspects regarding the stiffness of the connections between the beams that support the storage pallets and the uprights are very important in the analysis of the displacements and stresses in the storage racking systems. The main purpose of the paper by [ 32 ] is to study the effects of both upright thickness and tab connector types on rotational stiffness and on the capable bending moment of the connection. For this purpose, 18 different groups of beam-connector-upright assemblies are prepared by combining three types of beams (different sizes of the box cross-section), three kinds of upright profiles (with a different thickness of the section walls), and two types of connectors (four-tab connectors and five-tab connectors).…”

Section: Description Of the Articles Presented In The Issuementioning

confidence: 99%

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Testing of Materials and Elements in Civil Engineering

Schabowicz

2021

Materials

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This issue is proposed and organized as a means to present recent developments in the field of testing of materials in civil engineering. For this reason, the articles highlighted in this issue should relate to different aspects of testing of different materials in civil engineering, from building materials and elements to building structures. The current trend in the development of materials testing in civil engineering is mainly concerned with the detection of flaws and defects in elements and structures using destructive, semi-destructive, and nondestructive testing. The trend, as in medicine, is toward designing test equipment that allows one to obtain a picture of the inside of the tested element and materials. Very interesting results with significance for building practices of testing of materials and elements in civil engineering were obtained.

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Section: Description Of the Articles Presented In The Issuementioning

confidence: 99%

“…A contrary phenomenon happens in the case of the assemblies containing those upright profiles having a thickness of 2.0 mm, regarding the capable design moment. It is shown how the safety coefficient of connection depends on both the rotational stiffness and capable bending moment [ 32 ].…”

Section: Description Of the Articles Presented In The Issuementioning

confidence: 99%

Testing of Materials and Elements in Civil Engineering

Schabowicz

2021

Materials

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“…The single cantilever test method, described in [12] is used to determine the rotational stiffness of the connection. In past years, to evaluate the strength attributes of the connection, Kamal M. Bajoria et al [5], Dumbrava & Cerbu [13] and Vujanac et al [14] executed the single cantilever test method. In figure 2, the details of the experimental setup are shown.…”

Section: Single Cantilever Testmentioning

confidence: 99%

Investigation on Teardrop Connection of Rack Clad Building

Hoque¹,

Peng²,

Alam³

2021

International Conference on Civil, Structural and Transportation Engineering

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A rack clad building (RCB) is a kind of storage system where the raking forms part of the structure. The larger size of the RCB structure makes it dissimilar to the typical storage system. To enhance the lateral stability and the moment capacity in the unbraced down aisle direction, different types of connections are used in the rack clad building history. Teardrop connection which is one of the connection systems of the RCB, is a boltless connection where tabs used as connectors, are entered into the perforated hole of the cold formed column. The moment capacity, rotational stiffness, rotational capacity of the teardrop connection are the parameters that determine the efficiency in controlling the sway limitation in the down-aisle direction. There is limited research on the investigation of the mechanical behaviors and the design of teardrop connections. On this account, it is imperative to disclose the vital parameters related to the performance of the connector. This paper reviews the existing methods such as different types of experimental studies, finite element analysis, analytical model, component method which are used in determining the stiffness and the capacity of the connection. Finally, the influence of the geometric characteristics of the components such as thickness of the column, height of the beam, number of tabs, welding position of the beam to beam end connector, on the performance of the joint, has been presented in this paper.

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“…According to the test results, shown in Figure 10, the stiffness of the steel strengthening section is subjected to stress loading under different loads [36].…”

Section: Analysis Model Of Horizontalmentioning

confidence: 99%

Numerical Simulation Algorithm Design of Influence on Existing Tunnel by Underpass Construction of New Tunnel

2021

Scientific Programming

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Simulation is a powerful tool that can be used for systematic planning, analysis, and decision-making. Proper designing is preliminary required to construct a new tunnel over an existing tunnel to ensure safety and durability. Once an underpass tunnel completes, the interaction between the tunnel structure and the nearby soil gains a stable state and the stress of the tunnel is balanced. However, the stability of an existing tunnel is affected if the construction in the nearby area is not properly analyzed. This article proposes a numerical simulation model to empirically analyze lining force and surface settlement in order to ensure safety in engineering practice. The existing tunnel structure working condition is simulated under the new tunnel. The artificial honeybee colony algorithm is used to extract the parameter fusion characteristic value of tunnel influence and the model of estimating the bending moment of group piles. The structural mechanics of existing tunnels under new tunnels are analyzed using the triple bend model to improve the bearing capacity of existing tunnels under new tunnels. Based on the above analysis, numerical simulation experiments are designed. The proposed method has high accuracy and strong fitting ability and can effectively reduce the displacement of existing tunnels. Moreover, the method can improve the bearing capacity of tunnels. For tunneling operation, the results of the simulation may be used as a recommendation.

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Experimental Study on the Stiffness of Steel Beam-to-Upright Connections for Storage Racking Systems

Cited by 11 publications

References 17 publications

Testing of Materials and Elements in Civil Engineering

Testing of Materials and Elements in Civil Engineering

Investigation on Teardrop Connection of Rack Clad Building

Numerical Simulation Algorithm Design of Influence on Existing Tunnel by Underpass Construction of New Tunnel

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