Buildings | Free Full-Text | A Framework for Prefabricated
The hoisting of prefabricated components (PCs) is a key step during the construction of prefabricated buildings. Aiming at the problems existing in the control of PC hoisting, an innovative hoisting management system framework based on the digital twin (DT) is established in this paper. The system framework comprehensively utilizes the …Web
اقرأ أكثرCN113319995A
The application relates to a concrete production technology discloses a superimposed sheet production line, including prefabricated mould, the transmission device who is used for transporting prefabricated mould, transmission device includes the stand that arranges in proper order along process distribution direction, rotates the transfer gear of installing …Web
اقرأ أكثرADDIS ABABA UNIVERSITY ADDIS ABABA INSTITUTE OF …
2.3.1. Precast Concrete and Sustainability 24 2.3.2. Precast Construction Applications 28 ... Precast Building Parts Production Enterprise PCI: Precast/Prestressed Concrete Institute PDCA: Plan-Do-Check-Act ... Self Consolidating Concrete TBL: Triple Bottom Line VOC: Volatile Organic Compounds Vol.: Volume ...Web
اقرأ أكثرStatistical Quality Inspection Methodology in Production of Precast
1. Introduction. The existence of prefabrication plants and numerous successful construction projects realized with precast concrete elements for all or part of a building structure demonstrate that this technology is effective and economical [].In [], the author contended that by employing industrialized and automated building system methods, the amount of …Web
اقرأ أكثرStudy on the use of Prefabrication Technology In Ethiopian …
Hyredin Mussema (Construction head of PBPPE),Ato Tilahun Tamiru (concrete production coordinator in PBPPE), Ato Noah Birhanu (project manager of Ybel industrial plc) and Ato H/Mikael Fentaw (prefab expert in Ybel industrial plc) and others factory professionals for their ... Figure 2.3. Expansion of IMS precast concrete system …Web
اقرأ أكثرAn Analysis on Promoting Prefabrication Implementation in …
2. Materials and Methods. Currently, popular databases for retrieving papers are Scopus, Web of Science (WoS), and Google Scholar. Falagas et al. [] stated that WoS has the highest coverage in the engineering field.Liu et al. [] and conducted bibliographic analyses and proved that WoS was the priority choice for review studies in the …Web
اقرأ أكثرPrecast concrete–to–precast concrete facade joints using …
The precast concrete panel sizing selected was two 6 × 4 ft (1830 × 1220 mm) panels set on two 2 × 4 ft (610 × 1220 mm) panels with a ¾ in. (19 mm) wide sealant joint forming a cross between all four panels. The committee agreed that this 8 × 8Web
اقرأ أكثرIntegrated management model of production and yard stock for in …
In-situ production of precast concrete (PC) members is affected by various factors, such as cost, time, quantity, lead-time, number of molds, production cycle, number of cranes, and yard stock area. Particularly, the yard stock area constitutes over 84% of the total required area, considerably larger than the production area. ...Web
اقرأ أكثرCN109834814A
The present invention provides a kind of precast concrete production lines, belong to precast concrete production field, including pouring vibrational line, demoulding line, curing line and main-auxiliary vehicle, demoulding line handles the mold releasability after maintenance, and will be sent into through demoulding treated mold circulation and …Web
اقرأ أكثرSustainability | Free Full-Text | Optimization of Prefabricated
Modular construction involves the production of construction components (e.g., structures, materials, various types of equipment) that are built off-site, and modules are assembled with minimal effort on-site [1,2,3].In modular construction—a type of industrialized construction—factory production is very important, as it is closely related …Web
اقرأ أكثرLean manufacturing applications in prefabricated construction …
Optimizing the production process of prefabricated steel frames: VSM, JIT: Empirical analysis, DES: 9: Gallardo et al. (2014) [98] Brazil: Promoting line flow precast concrete process through basic stability: PDCA: Empirical analysis: 10: Ahmad et al. (2019) [30] Malaysia: Optimizing the reinforcement work process in the precast concrete …Web
اقرأ أكثرExploring the association rules of work activities for producing
Abstract. Precast concrete components production in the construction industry is a highly labor-intensive and experience-oriented process. This research aims to explore the association rules of precast production procedures in order to optimize production efficiency and costs. Precast concrete production data from 2008 to 2017 …Web
اقرأ أكثرResearch on the rework risk core tasks in prefabricated …
The rework risk function was based on the loss expectancy method.FindingsThere are 13 core tasks that have higher impacts than the average level. The core tasks in the design stage account for of the tasks in the stage, those in the manufacturing stage account for 20% and those in the construction stage account for …Web
اقرأ أكثرStatistical Quality Inspection Methodology in Production of Precast
Today, prefabricated concrete elements are used in many construction areas, including in industrial, public, and residential construction; this was confirmed via questionnaire research. In the article, the prospects for precast concrete development are presented, and the factors determining the use of this technology are defined. Based on …Web
اقرأ أكثرA Production Line-based Carbon Emission Assessment Model for
Liu Guiwen et al. proposed a carbon emission calculation model for a precast component production line and conducted a case study with precast concrete wall panels [25]. It can be seen that carbon ...Web
اقرأ أكثرAnalyze Differences in Carbon Emissions from Traditional and
Prefabricated buildings consume more concrete, steel bar, and diesel and fewer wall materials than traditional cast-in-situ buildings. Next Article in Journal. ... Hong, J.; Shrestha, A.; Martek, I. A production line-based carbon emission assessment model for prefabricated components in China. J. Clean. Prod. 2019, 209, 30–39. [Google Scholar ...Web
اقرأ أكثرCarbon emission evaluation of prefabricated concrete composite …
The prefabricated concrete composite (PCC) plate is a critical and major component in construction projects [17]. ... PCC-plate production line, reinforcement production and processing, in-plant transportation, steam curing, and auxiliary equipment. (2) Transport-logistics substage.Web
اقرأ أكثرPrecast concrete production lines | Elematic precast …
Batching and mixing plant S5-20. The Elematic Batching and Mixing plant S5 is a small, mobile and modular concrete mixing plant with a planetary mixer to produce up to 20 m3/h of high-quality concrete. Precast …Web
اقرأ أكثرApplied Sciences | Free Full-Text | Study on the Carbon
The construction industry is characterized by high energy consumption and high carbon emissions. With growing concern about climate change, environmental protection is becoming increasingly important. In this paper, the whole construction process of prefabricated floor slab (PFS) is divided into three stages: production, …Web
اقرأ أكثرLean manufacturing applications in prefabricated construction …
The production efficiency can be improved through the systematic coordination of prefabricated construction, including production line planning, the …Web
اقرأ أكثرOptimization of Flow Shop Scheduling in Precast …
Figure 1 shows the six steps of a typical production line: (1) mold assembly, (2) reinforcement setting, (3) casting, (4) curing, (5) mold …Web
اقرأ أكثرA 3D concrete prefabrication platform for bespoke columns
Depending on the fabrication environment, 3DCP can be categorized under in-situ fabrication or prefabrication. The examples in Fig. 3.1, Fig. 3.2 show a gap in the level of functional diversity and geometric complexity between the two categories [13].In-situ 3DCP is predominantly used to produce walls with straight extruded geometries [4].As such, the …Web
اقرأ أكثرResearch on Lean Planning and Optimization for Precast
2. Literature Review 2.1. Production Line and Process. Precast components making up prefabricated buildings are produced at a factory. The basic production process includes cleaning mold, binding steel, pouring concrete, curing component, and releasing mold . However, different types of precast components vary in the details of …Web
اقرأ أكثرWhen life gives you carbon, make Carbonaide | TechCrunch
Concrete is ubiquitous. A mainstay of the construction industry, over 10 billion cubic meters of concrete is used every year. It's also responsible for up to 8% of CO 2 emissions: one ton of ...Web
اقرأ أكثرChapter 3 DESIGN CONCEPT FOR PRECAST SYSTEM
• Precast concrete non-load bearing façade panels. • Precast concrete floor system, either: - Precast concrete beams and precast slabs (reinforced concrete or prestressed) with a composite in-situ topping or Precast concrete walls with precast concrete slab system Figure 3.1 Precast prestressed slabs spanning between walls with composite ...Web
اقرأ أكثرStudy on the Bearing Capacity of Steel Formwork Concrete …
Steel formworks are widely used in prefabricated buildings thanks to their good characteristics. With the rapid development of engineering construction in China, steel formwork concrete structures, characterized by convenient construction, good seismic performance, and high strength, are expected to be more extensively applied in …Web
اقرأ أكثرCalculating and Analyzing Carbon Emission Factors of Prefabricated
Some scholars focus on the carbon emissions of prefabricated components in the production stage. Liu Guiwen et al. proposed a carbon emission calculation model for a precast component production line and conducted a case study with precast concrete wall panels . It can be seen that carbon emissions of prefabricated components have …Web
اقرأ أكثرTHE SUSTAINABLE PREFABRICATED WALL PANEL …
The innovative prefabricated concrete wall panel system consists of two precast concrete layers interconnected through stainless steel lattice girders, Figure 3. 50 % of the total ... The schematic overview of the whole production line is presented on figure 6. Figure 6: Schematic overview of the production line . Page 6Web
اقرأ أكثر(PDF) Optimization of Flow Shop Scheduling in …
The increasing number of prefabrication projects has increased the demand for precast concrete (PC) components. The production cost of PC components significantly affects the development …Web
اقرأ أكثرResearch on production process optimization of precast concrete
This research represents an innovative application of lean production theory and value stream mapping in a complex production line of precast concrete …Web
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