RETRACTED: Prefabricated construction process and unloading monitoring of space steel grid cassettle structure multi-storey large-span gymnasium

Chen, Jing; Ma, Kejian; Xiao, Jianchun; Wei, Yanhui; Chen, Hongniao; Lu, Yaqin

doi:10.1177/0020720920983542

Cited by 5 publications

(3 citation statements)

References 12 publications

(9 reference statements)

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“…Personnel safety and fire safety during the evacuation process need special attention [30]. The site requires several pieces of high-power equipment to support daily operation, and the large-span steel structure requires a more comprehensive building health detection system [31,32]. Meanwhile, the gymnasium is a typical large-span building, with a large roof area and abundant solar energy resources [33].…”

Section: Operation Management Of Building Infrastructuresmentioning

confidence: 99%

Sustainable Operation and Maintenance Modeling and Application of Building Infrastructures Combined with Digital Twin Framework

Jiao

Liu

et al. 2023

Sensors

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Sustainable management is a challenging task for large building infrastructures due to the uncertainties associated with daily events as well as the vast yet isolated functionalities. To improve the situation, a sustainable digital twin (DT) model of operation and maintenance for building infrastructures, termed SDTOM-BI, is proposed in this paper. The proposed approach is able to identify critical factors during the in-service phase and achieve sustainable operation and maintenance for building infrastructures: (1) by expanding the traditional ‘factor-energy consumption’ to three parts of ‘factor-event-energy consumption’, which enables the model to backtrack the energy consumption-related factors based on the relevance of the impact of random events; (2) by combining with the Bayesian network (BN) and random forest (RF) in order to make the correlation between factors and results more clear and forecasts more accurate. Finally, the application is illustrated and verified by the application in a real-world gymnasium.

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Section: Operation Management Of Building Infrastructuresmentioning

confidence: 99%

Sustainable Operation and Maintenance Modeling and Application of Building Infrastructures Combined with Digital Twin Framework

Jiao

Liu

et al. 2023

Sensors

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“…Wan et al (2019) Numerical simulation and comparative analysis of the construction unloading of a four-point supported orthogonal steel truss structure with fixed ends by the gap element method, the equivalent rod end displacement method and the support displacement method respectively, and it was found that the gap element method was more suitable for the analysis of orthogonal space trusses. Chen et al (2021) during the construction unloading of the gymnasium of Fule International School in Mianyang, Sichuan, the deflection deformation of the large span floor and the field splicing node are monitored. The results show that the prefabricated construction method and the steel columns-scaffold combination support system are suitable for the large-span and high-load floor structure.…”

Section: Introductionmentioning

confidence: 99%

Construction Effects on the Mechanical States of a Truss Structure

Hui-pin

Yin

Qiao

et al. 2022

J. Perform. Constr. Facil.

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Large-span spatial steel structures are subject to complex stress conditions during construction, especially during the unloading phase, and they are easily affected by the environment and the loading method. Therefore, it is necessary to analyze the influence of different unloading construction methods on the structural reliability during construction to improve the quality of construction safety. In this paper, ANSYS version 16.0 software is used to establish a finite-element analysis model of the truss structure of the Harbin railway station. The synchronous unloading process and asynchronous unloading process are numerically simulated, and the stress variation trend of the arch truss during the unloading stage is studied. The research results show that the effect of simultaneous unloading on the mechanical state of the structure is small. During the unloading process, stress is more likely to exceed its limit in the area where the boundary conditions change. Then axial strain monitoring was performed during the actual unloading process of the truss structure of the Harbin railway station. The results show that the effect of synchronous unloading on the structure's stress state is small, which is in good agreement with the numerical simulation results.

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“…Due to its good mechanical properties, a large-span spatial steel structure [1] can achieve complex structural forms and functional requirements, and have a beautiful and simple appearance. It can be used in theaters [2], gymnasiums [3,4], museums [5], exhibition halls [6], and art centers [7]. It has many applications in airport terminals [8] and industrial plants [9].…”

Section: Introductionmentioning

confidence: 99%

Scientometric Analysis for Mechanical Performance of Broken-Line Long-Span Steel Structure in Construction Considering Geometric Nonlinearity

Yao

Yang

2021

Symmetry

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A structure does not reach a stable state during the construction process, and hence its structural reliability is low. In order to ensure the safety of the construction process and final structural quality, it is necessary to analyze the safety and structural mechanical properties of large-span space steel structures during the construction process. Based on the engineering background of the polyline symmetrical large-span steel structure construction process, this research established a finite element model of the large-span steel structure on an ANSYS platform. The correctness of the model was verified by comparing the measured frequency of the large-span steel structure with the frequency calculated in the finite element model. Based on the life-death element method, the internal force and deformation response characteristics of the large-span steel structure in the construction process were analyzed, and the different effects of the on-time completion and step-by-step construction on the performance of the broken-line large-span steel structure were compared and analyzed. The study found that the long-span steel truss structure is more sensitive to the construction process, and the final forming state is greatly affected by the construction process. The construction sequence is different, and the structure process and size and distribution of the final stress and deformation are also different. The analysis result of the construction process is closer to that of the actual project. Therefore, appropriate construction paths should be used in the construction process to reduce the impact of path effects on structural performance. It is recommended to pay more attention to the displacement and stress response of the truss when it encounters similar a symmetrical long-span steel structure truss in-place of the forming construction.

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RETRACTED: Prefabricated construction process and unloading monitoring of space steel grid cassettle structure multi-storey large-span gymnasium

Cited by 5 publications

References 12 publications

Sustainable Operation and Maintenance Modeling and Application of Building Infrastructures Combined with Digital Twin Framework

Sustainable Operation and Maintenance Modeling and Application of Building Infrastructures Combined with Digital Twin Framework

Construction Effects on the Mechanical States of a Truss Structure

Scientometric Analysis for Mechanical Performance of Broken-Line Long-Span Steel Structure in Construction Considering Geometric Nonlinearity

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