Cost Analysis of Precast and Cast-in-Place Concrete Construction for Selected Public Buildings in Ghana

Asamoah, Richard Oduro; Ankrah, John Solomon; Offei-Nyako, Kofi; Tutu, Ernest Osei

doi:10.1155/2016/8785129

Cited by 27 publications

(9 citation statements)

References 4 publications

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“…The scale of the projects affects the calculated values of LCC. Based on past studies, the scale of a specific project determines whether a prefabricated solution will be pragmatic or uneconomical [45,46]. To consider the different scale of projects and assess the applicability of the developed prefabricated footing systems, cost analyses focusing on the comparison of material consumption and life cycle costs (LCC) are performed.…”

Section: Life Cycle Cost Analysismentioning

confidence: 99%

Multi-Criteria Analysis of a Developed Prefabricated Footing System on Reactive Soil Foundation

Teodosio

Bonacci²,

Seo

et al. 2021

Energies

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The need for advancements in residential construction and the hazard induced by the shrink–swell reactive soil movement prompted the development of the prefabricated footing system of this study, which was assessed and compared to a conventional waffle raft using a multi-criteria analysis. The assessment evaluates the structural performance, cost efficiency, and sustainability using finite element modelling, life cycle cost analysis, and life cycle assessment, respectively. The structural performance of the developed prefabricated system was found to have reduced the deformation and cracking by approximately 40%. However, the cost, GHG emission, and embodied energy were higher in the prefabricated footing system due to the greater required amount of concrete and steel than that of the waffle raft. The cost difference between the two systems can be reduced to as low as 6% when prefabricated systems were installed in a highly reactive sites with large floor areas. The life cycle assessment further observed that the prefabricated footing systems consume up to 21% more energy and up to 18% more GHG emissions. These can significantly be compensated by reusing the developed prefabricated footing system, decreasing the GHG emission and energy consumption by 75–77% and 55–59% with respect to that of the waffle raft.

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Section: Life Cycle Cost Analysismentioning

confidence: 99%

Multi-Criteria Analysis of a Developed Prefabricated Footing System on Reactive Soil Foundation

Teodosio

Bonacci²,

Seo

et al. 2021

Energies

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“…A multi skilled workforce is one in which the workers possess a range of skills that allow them to participate in more than one work process [19]. Precast concrete was found to be 22.31% cheaper than the cast-in situ concrete for large scale production [20]. Precast concrete construction reduces life cycle cost as well as wastage and increases speed of construction without compromising quality and strength [21].…”

Section: Literature Reviewmentioning

confidence: 99%

Cost Optimization in Building Construction Projects with Special Reference to Kathmandu Valley of Nepal

Karn¹,

Dahal²

2021

AJSET

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Cost optimization is a process that should be carried out throughout the construction period to ensure that the cost of the project is within an allotted budget. Time and cost are the two most significant factors in any construction project. Cost increases with the time of construction. The objective of this study was to find out the factors that contribute to the optimization of construction costs in building construction projects in Nepal. The study was conducted during the period from April 2019 to September 2020. Field observation, in-depth interviews, focus group discussions and questionnaire surveys were the major tools for the investigation of this study. The findings were analyzed in nine categories: project related factors, design related factors, owner related factors, consultant related factors, contractor related factors, material related factors, labor related factors, equipment related factors, and external factors. The study found some key factors related to time and cost overrun, optimizing cost of construction and the strategies to optimize project costs. The most important strategy to optimize the construction cost are effective cost planning and control, development of proper monitoring and tracking system, sound working environment, recording daily work progress, using time cost trade off, follow plan-do-check-act quality policy, hire skilled labor and effective supervision. The study suggests that constructability and value engineering principles should be adopted in construction projects.

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“…Tere are studies in the literature using the mass-spring model in precast and other structural elements [17][18][19][20]. In addition, in recent years, dynamic studies in the felds of construction and geotechnical sciences are available in the literature [21,22].…”

Section: Introductionmentioning

confidence: 99%

Examination of Precast Concrete Movement Subjected to Vibration Employing Mass-Spring Model with Two Convective Masses

Aktas

2024

Shock and Vibration

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This article investigates the movement of concrete subjected to vibration employing mass-spring model. For this purpose, two different prefabricated concrete-formworks, on which experimental work was done before, were analysed analytically. The theoretical modeling of precast formworks employed in experiments has been made by the three-dimensional finite element method employing the SAP2000 program. Modeling of mortar is performed to resolve the interaction between the fresh concrete and formwork using the mass-spring model. Considering the dynamic behavior of the fluid, it is possible to define multiple oscillation (convective) masses with different frequency values in addition to the impulse mass. Thus, one impulse mass and two convective masses were used in the mass-spring model. This study is essentially theoretical, and its accuracy has been strengthened by experimental work. The time-dependent results of concrete movement obtained from the dynamic mass-spring model were compared with the measured ones. The matches indicate that the findings are consistent.

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Cost Analysis of Precast and Cast-in-Place Concrete Construction for Selected Public Buildings in Ghana

Cited by 27 publications

References 4 publications

Multi-Criteria Analysis of a Developed Prefabricated Footing System on Reactive Soil Foundation

Multi-Criteria Analysis of a Developed Prefabricated Footing System on Reactive Soil Foundation

Cost Optimization in Building Construction Projects with Special Reference to Kathmandu Valley of Nepal

Examination of Precast Concrete Movement Subjected to Vibration Employing Mass-Spring Model with Two Convective Masses

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