Experimental study on stable bearing capacity of wheel-buckle formwork support frames

Yu, Haifeng; Guo, Shida; Liu, Weiran; Gao, Ren-Qing

doi:10.1016/j.istruc.2023.01.010

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…The results indicated that the damage of the single-layer upright rods is typical with lateral displacement buckling, while the damage of the double-layer upright rods is without lateral displacement buckling. Yu [15] investigated the failure mode and stable bearing capacity of a novel type of wheel-buckle scaffolding through nine full-size test models and established a simplified formula for the stabilizing load capacity of the scaffolding. For the novel type of scaffolding, Chen [16] developed a kind of superstrong thin-walled steel pipe fastener scaffold.…”

Section: Introductionmentioning

confidence: 99%

Experimental Studies and Finite Element Analysis of Socket-Type Keyway Steel Pipe Scaffolding

Zhang,

Yang,

Jiang

et al. 2024

Buildings

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Scaffolding is an integral temporary structural system in the field of construction engineering. However, the current scaffolding commonly has the shortcomings of low construction efficiency and high risk. This paper proposes a novel socket-type keyway steel pipe scaffolding, which can well solve the shortcomings of the existing scaffolding. Due to less research related to scaffolding in the past decades, it has resulted in a high number of scaffolding accidents. In order to avoid the occurrence of scaffolding accidents, it is necessary to systematize the study of this novel type of scaffolding. This study is an extremely important reference for the use and design of this novel type of scaffolding. To explore the ultimate load capacity and destabilization mode of the novel socket-type keyway steel pipe scaffolding, full-scale tests were conducted on the socket-type keyway steel pipe scaffolding with cantilever heights of 1.2 m and 0.5 m. The test results indicate that the ultimate load capacity of the scaffolding with a cantilever height of 1.2 m is 196 kN, and the destabilization mode is local instability. The ultimate load capacity with a cantilever height of 0.6 m is 276 kN, and the destabilization mode is half-wave buckling. This phenomenon shows that the different cantilever heights of the scaffolding have a significant effect on the load capacity and destabilization mode. Moreover, the load capacity decreases significantly with increasing cantilever length. The finite element model was established using SAP2000 v21 and compared with the test results. The error between the ultimate load capacity in the finite element linear elastic buckling analysis and the test results is 25%. The error between the calculated ultimate load capacity in the nonlinear buckling analysis considering the initial geometrical defects and the test results is 4%. Therefore, the nonlinear buckling analysis considering the initial geometrical defects is more in line with the force situation of the structure in the real situation.

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Section: Introductionmentioning

confidence: 99%

Experimental Studies and Finite Element Analysis of Socket-Type Keyway Steel Pipe Scaffolding

Zhang,

Yang,

Jiang

et al. 2024

Buildings

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The measurement of axial forces in scaffolding standards

Błazik-Borowa,

Robak,

Pieńko

et al. 2023

Measurement

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Assessment of the OTEC cold water pipe design under bending loading: A benchmarking and parametric study using finite element approach

Adie,

Adiputra,

Prabowo

et al. 2023

Journal of the Mechanical Behavior of Materials

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Ocean thermal energy conversion (OTEC) is a floating platform that generates electricity from seawater heat. The cold water pipe (CWP) used in OTEC has a length of 1,000 m and a diameter of 10 m, making it susceptible to bending loads from ocean currents. To find suitable geometry and material for the CWP, the finite element method was used to model the real-world geometry. In the D/t variation, lower ratios (increased thickness) result in higher critical moments, maximum stress, strain, and displacement. D/t 50 was chosen for the CWP. In the L/D variation, the critical moment’s impact on L/D ratio was minimal, while reducing L/D (shorter pipe) increased strain, and larger L/D geometries had higher displacements. L/D 10 was selected as it balanced critical moments and reduced the number of stiffeners needed. For diameter size variation, larger diameters increased critical moment and strain, but smaller diameters (larger L/D ratios) also showed high strain due to necking at two points. A diameter of 12 m was chosen for its exceptionally high critical moment. Steel was selected as the suitable material due to its higher critical moment and maximum stress, despite its higher weight and lower maximum strain than composites. Capital shape imperfections had a minimal effect on the CWP’s structure as they were localized.

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Experimental study on stable bearing capacity of wheel-buckle formwork support frames

Cited by 3 publications

References 18 publications

Experimental Studies and Finite Element Analysis of Socket-Type Keyway Steel Pipe Scaffolding

Experimental Studies and Finite Element Analysis of Socket-Type Keyway Steel Pipe Scaffolding

The measurement of axial forces in scaffolding standards

Assessment of the OTEC cold water pipe design under bending loading: A benchmarking and parametric study using finite element approach

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