Experimental Study on Bearing Capacity of Reinforced Steel Tubular Scaffold under Uniform Loads

Li, Jia; Liu, Hongbo; Chen, Zhihua; Liu, Yang; Wu, Yapeng

doi:10.1155/2019/4324528

Cited by 6 publications

(4 citation statements)

References 27 publications

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“…Regarding fastener-type steel pipe scaffolding. Jia [11] analyzed the destabilization mechanism and damage mode of an ultra-high full room of a fastener steel pipe scaffold under uniform loads through static tests of seven models and analyzed the effect of multiple parameters on the ultimate load of a full scaffold. According to the finite element analysis, the suggested value of the coefficient of unevenness for the calculation of the slip-resistant bearing capacity of the fasteners at the top level of the full scaffold is 1.51.…”

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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“…And Peng et al [2] proposed to determine the layout form of scaffolds according to the ultimate bearing capacity of the bars. Jia et al [3] studied the fastener scaffold model and proposed a calculation model and algorithm which simplified the calculation workload.…”

Section: Introductionmentioning

confidence: 99%

Performance Study of External Scaffolding under Wind-Induced Action

Cao¹,

Huang

Chen³

et al. 2023

J. Phys.: Conf. Ser.

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Scaffolding is an essential temporary measure in engineering construction, and its safety management is critical in the construction process. In this paper, the overall scaffolding model is simulated and analyzed by SAP2000 finite element software. The difference in force between the scaffolding under static wind load and time-range wind load is obtained so that the wind vibration coefficient of the scaffolding is suggested. The results show that the most influential factor in the stability of the scaffold is the way in which the wall elements are arranged. At the same time, the most favorable arrangement is a two-step, two-span arrangement of the wall elements, a 50° angle of scissor bracing, and a wind protection factor of 0.8 for the safety net. Also, the wind vibration factor βz should be taken as 2.5 instead of 1 in the scaffolding code for close-meshed scaffolding at a height of 50 m.

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“…The joints are the weakest components in the scaffold system, and structural components are less likely to be damaged than the connections between joints [3,4]. In the scaffold system, since the joint plays the role of connecting the standard, ledger and brace and the mechanical behavior of the joint is not rigid or hinge but semi-rigid, the stiffness of the joint has a significant impact on the bearing capacity of the scaffold system [5][6][7][8]. Therefore, in order to avoid the collapse of scaffold system, it is necessary to analyze the connection characteristics of joints in detail.…”

Section: Introductionmentioning

confidence: 99%

Experimental Studies of the Sorbite Stainless Steel Plug-Pin Scaffold Joint

2022

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Systematic experimental studies were performed for the purpose of obtaining the material properties of cold-formed sorbite stainless steel and the mechanical parameters of plug-pin joint. As a new type of material, the scaffold made of sorbite stainless steel has the advantages of convenient construction, high strength and stainless steel. The static tensile tests for S500 sorbite stainless steel investigating the material characteristics of plug-pin joint were carried out. The bending moment, the compressive force, the tensile force and the shear force were applied to the joint respectively. To get the failure modes and moment-rotation (or load-displacement) curves, the joint behavior, including the semi-rigidity between the ledger and the standard, compression and shear of the standard, and the tension of the ledger joint were studied. The result can determine the load-bearing capacity and the performance of the joint. The joint stiffness was determined according to different methods and four models were proposed to describe the bending behavior. By analyzing the different modes of joint failure, the weak part can be determined to provide basis for actual joint design.

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Experimental Study on Bearing Capacity of Reinforced Steel Tubular Scaffold under Uniform Loads

Cited by 6 publications

References 27 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

Performance Study of External Scaffolding under Wind-Induced Action

Experimental Studies of the Sorbite Stainless Steel Plug-Pin Scaffold Joint

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