Optimization of precast production scheduling for rail track slab

Liang, Qingxue; Hu, Hao

doi:10.1109/temscon.2017.7998389

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…Wang and Xin [2] established an 8-hole continuous sunflower shaped arch bridge model using finite element analysis software Midas/Civil, and analyzed the influence of the connection method of the main arch ring on the stress performance, deformation performance, and stability of the sunflower shaped arch structure.Jin Wencheng, Zhao Hongyao, Bai Jinzeng, Qin Bo [3] used the Sanhegou Bridge in Xuan'en County as the engineering background and conducted simulation analysis of its structural system using finite element software Bridge Doctor.Jin Wencheng, Zhao Hongyao, Bai Jinzeng, and Qin Bo [4] compared and analyzed the characteristics and shortcomings of non integral tied sunflower arch bridges and integral prestressed sunflower arch bridges, and combined with engineering examples, analyzed the stress characteristics of sunflower shaped arch bridges in urban Fushuihe Bridge, and proposed key control sections for the design of such bridges.Liang Qingxue [5] used finite element analysis software Midas/Civil combined with engineering examples to study the influence of the main arch connection form, main arch ring span loss ratio, and belly arch ring span loss ratio on the structural performance of the sunflower shaped arch bridge. He also studied the influence of different main arch connection forms on the stability of the structural system and conducted preliminary analysis and research on the vibration effect of the sunflower shaped arch bridge.Kang Juntao, Liang Qingxue, and Zhou Hansheng [6] used a prestressed sunflower arch bridge as an example and established a calculation model using finite element software Midas/Civil.…”

Section: Introductionmentioning

confidence: 99%

Simulation analysis of the entire construction process of the sunflower shaped continuous arch bridge

Meng,

Zhang

2024

J. Phys.: Conf. Ser.

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At present, there is a lot of research on the structural system of the completion stage of the Kuihua arch bridge in China, but there is a lack of research on the risks existing in each stage of the construction of the Kuihua arch bridge. Therefore, it is necessary to conduct a full process simulation analysis of the construction process of the sunflower shaped continuous arch bridge. The following conclusions were drawn from this study: (1) After analysis, the construction method of first removing the support below the main arch ring and then pouring the main beam can ensure the safety of construction. (2) The maximum axial force of the support pole below the main arch is -17.67kN, located in rows 10 and 50. The maximum vertical displacement of the main arch is -4.998mm, which is much smaller than the allowable deflection. Therefore, the shape of the main arch is within the safe range. (3) The tensile stress of the main arch and continuous longitudinal beam are both less than the design value of C40 concrete tensile strength of 1.71MPa, so the main arch and continuous longitudinal beam have not cracked, and are in a safe state throughout the construction process.

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Section: Introductionmentioning

confidence: 99%

Simulation analysis of the entire construction process of the sunflower shaped continuous arch bridge

Meng,

Zhang

2024

J. Phys.: Conf. Ser.

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“…Meanwhile, the research gaps and the limitations discussed in the above paragraph are the actual needs of the supply chain of prefabricated components. The delivery of prefabricated components on time is the key factor affecting the progress of the project (Liang and Hu, 2017;Sankaranarayanan et al, 2021). At the same time, it is necessary to minimize wasteful activities of prefabricated components during the production process and expanding effective activities in the normal production process (Wang et al, 2019a).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improved biogeography-based optimization algorithm for lean production scheduling of prefabricated components

Yan

Sugumaran

et al. 2022

ECAM

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PurposeFor prefabricated building construction, improper handling of the production scheduling for prefabricated components is one of the main reasons that affect project performance, which causes overspending, schedule overdue and quality issues. Prior research on prefabricated components production schedule has shown that optimizing the flow shop scheduling problem (FSSP) is the basis for solving this issue. However, some key resources and the behavior of the participants in the context of actual prefabricated components production are not considered comprehensively.Design/methodology/approachThis paper characterizes the production scheduling of the prefabricated components problem into a permutation flow shop scheduling problem (PFSSP) with multi-optimization objectives, and limitation on mold and buffers size. The lean construction principles of value-based management (VBM) and just-in-time (JIT) are incorporated into the production process of precast components. Furthermore, this paper applies biogeography-based optimization (BBO) to the production scheduling problem of prefabricated components combined with some improvement measures.FindingsThis paper focuses on two specific scenarios: production planning and production rescheduling. In the production planning stage, based on the production factor, this study establishes a multi-constrained and multi-objective prefabricated component production scheduling mathematical model and uses the improved BBO for prefabricated component production scheduling. In the production rescheduling stage, the proposed model allows real-time production plan adjustments based on uncertain events. An actual case has been used to verify the effectiveness of the proposed model and the improved BBO.Research limitations/implicationsWith respect to limitations, only linear weighted transformations are used for objective optimization. In regards to research implications, this paper considers the production of prefabricated components in an environment where all parties in the supply chain of prefabricated components participate to solve the production scheduling problem. In addition, this paper creatively applies the improved BBO to the production scheduling problem of prefabricated components. Compared to other algorithms, the results show that the improved BBO show optimized result.Practical implicationsThe proposed approach helps prefabricated component manufacturers consider complex requirements which could be used to formulate a more scientific and reasonable production plan. The proposed plan could ensure the construction project schedule and balance the reasonable requirements of all parties. In addition, improving the ability of prefabricated component production enterprises to deal with uncertain events. According to actual production conditions (such as the occupation of mold resources and storage resources of completed components), prefabricated component manufacturers could adjust production plans to reduce the cost and improve the efficiency of the whole prefabricated construction project.Originality/valueThe value of this article is to provide details of the procedures and resource constraints from the perspective of the precast components supply chain, which is closer to the actual production process of prefabricated components. In addition, developing the production scheduling for lean production will be in line with the concept of sustainable development. The proposed lean production scheduling could establish relationships between prefabricated component factory manufacturers, transportation companies, on-site contractors and production workers to reduce the adverse effects of emergencies on the prefabricated component production process, and promote the smooth and efficient operation of construction projects.

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Measurement Analysis of Box Girder Production Cycle Times in Indonesia Infrastructure Projects

Widiantoro¹,

Ichsan²,

Saputra³

2021

Proceedings of the 2nd Borobudur International Symposium on Science and Technology (BIS-STE 2020)

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Optimization of precast production scheduling for rail track slab

Cited by 3 publications

References 10 publications

Simulation analysis of the entire construction process of the sunflower shaped continuous arch bridge

Simulation analysis of the entire construction process of the sunflower shaped continuous arch bridge

Improved biogeography-based optimization algorithm for lean production scheduling of prefabricated components

Measurement Analysis of Box Girder Production Cycle Times in Indonesia Infrastructure Projects

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