Conceptual cost estimation framework for modular projects: a case study on petrochemical plant construction

Modularization, which allows for pre-assembly away from a construction site, has been known to be more cost-effective than stick-built; however, contractors have difficulty ascertaining the benefits and adopting it. Calculating the benefits and costs of adopting modularization precedes decision mak...

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Main Authors: Younguk Choi, Chan Young Park, Changjun Lee, Sungmin Yun, Seung Heon Han
Format: Article
Language:English
Published: Vilnius Gediminas Technical University 2022-02-01
Series:Journal of Civil Engineering and Management
Subjects:
Online Access:https://tede.vgtu.lt/index.php/JCEM/article/view/16234
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author Younguk Choi
Chan Young Park
Changjun Lee
Sungmin Yun
Seung Heon Han
author_facet Younguk Choi
Chan Young Park
Changjun Lee
Sungmin Yun
Seung Heon Han
author_sort Younguk Choi
collection DOAJ
description Modularization, which allows for pre-assembly away from a construction site, has been known to be more cost-effective than stick-built; however, contractors have difficulty ascertaining the benefits and adopting it. Calculating the benefits and costs of adopting modularization precedes decision making. However, modular cost estimation is challenging since relevant information in the early stages of a project and historical data about industrial modularization both have limited availability. To solve this problem, this study developed a conceptual cost estimation framework for industrial modular projects by converting stick-built project information. The framework is composed of eight steps based on two approaches. This study conducted a case study to demonstrate the applicability of the framework, which compared the project cost of modularization scenarios 1 and 2 with that of the stick-built version of the ongoing project. In addition, the estimated modular cost was compared with the engineers’ estimation to verify the accuracy of the framework. The contributions of this study are in identifying and quantifying the factors influencing the differences in cost between the modularization and stick-built versions, and developing the conceptual cost estimation framework for an industrial modular project. This framework is expected to support deciding on adopting modularization, budgeting, and project viability.
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spelling doaj.art-da3aee9b5833418aae48f5bb3ed4ed922022-12-21T17:24:10ZengVilnius Gediminas Technical UniversityJournal of Civil Engineering and Management1392-37301822-36052022-02-0128210.3846/jcem.2022.16234Conceptual cost estimation framework for modular projects: a case study on petrochemical plant constructionYounguk Choi0Chan Young Park1Changjun Lee2Sungmin Yun3Seung Heon Han4Department of Civil and Environmental Engineering, Yonsei University, Seoul, Republic of KoreaIntelligent Construction Automation Center, Kyungpook National University, Daegu, Republic of KoreaDepartment of Civil and Environmental Engineering, Yonsei University, Seoul, Republic of KoreaDepartment of Civil Engineering, Yeungnam University, Gyeongsan, Republic of KoreaDepartment of Civil and Environmental Engineering, Yonsei University, Seoul, Republic of Korea Modularization, which allows for pre-assembly away from a construction site, has been known to be more cost-effective than stick-built; however, contractors have difficulty ascertaining the benefits and adopting it. Calculating the benefits and costs of adopting modularization precedes decision making. However, modular cost estimation is challenging since relevant information in the early stages of a project and historical data about industrial modularization both have limited availability. To solve this problem, this study developed a conceptual cost estimation framework for industrial modular projects by converting stick-built project information. The framework is composed of eight steps based on two approaches. This study conducted a case study to demonstrate the applicability of the framework, which compared the project cost of modularization scenarios 1 and 2 with that of the stick-built version of the ongoing project. In addition, the estimated modular cost was compared with the engineers’ estimation to verify the accuracy of the framework. The contributions of this study are in identifying and quantifying the factors influencing the differences in cost between the modularization and stick-built versions, and developing the conceptual cost estimation framework for an industrial modular project. This framework is expected to support deciding on adopting modularization, budgeting, and project viability. https://tede.vgtu.lt/index.php/JCEM/article/view/16234modularizationindustrial modular projectsconceptual cost estimationquantity-based estimationMonte-Carlo simulation
spellingShingle Younguk Choi
Chan Young Park
Changjun Lee
Sungmin Yun
Seung Heon Han
Conceptual cost estimation framework for modular projects: a case study on petrochemical plant construction
Journal of Civil Engineering and Management
modularization
industrial modular projects
conceptual cost estimation
quantity-based estimation
Monte-Carlo simulation
title Conceptual cost estimation framework for modular projects: a case study on petrochemical plant construction
title_full Conceptual cost estimation framework for modular projects: a case study on petrochemical plant construction
title_fullStr Conceptual cost estimation framework for modular projects: a case study on petrochemical plant construction
title_full_unstemmed Conceptual cost estimation framework for modular projects: a case study on petrochemical plant construction
title_short Conceptual cost estimation framework for modular projects: a case study on petrochemical plant construction
title_sort conceptual cost estimation framework for modular projects a case study on petrochemical plant construction
topic modularization
industrial modular projects
conceptual cost estimation
quantity-based estimation
Monte-Carlo simulation
url https://tede.vgtu.lt/index.php/JCEM/article/view/16234
work_keys_str_mv AT youngukchoi conceptualcostestimationframeworkformodularprojectsacasestudyonpetrochemicalplantconstruction
AT chanyoungpark conceptualcostestimationframeworkformodularprojectsacasestudyonpetrochemicalplantconstruction
AT changjunlee conceptualcostestimationframeworkformodularprojectsacasestudyonpetrochemicalplantconstruction
AT sungminyun conceptualcostestimationframeworkformodularprojectsacasestudyonpetrochemicalplantconstruction
AT seungheonhan conceptualcostestimationframeworkformodularprojectsacasestudyonpetrochemicalplantconstruction