Advanced planning model of formwork layout for productivity improvement in high-rise building construction

Lee, Dongmin; Lim, Hyunsu; Kim, Tae-Hoon; Cho, Hunhee; Kang, Kyung-In

doi:10.1016/j.autcon.2017.09.019

Cited by 30 publications

(14 citation statements)

References 18 publications

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“…These formworks combine small-scale and large-scale formwork [12]. The boards can be used to assemble large panels of up to 30-40 m 2 with quick clamps [13].…”

Section: Literature Review 21 What Does Modern Formwork Mean?mentioning

confidence: 99%

Examination of the cost ratio of the formwork

Huszár

Lublóy

2021

Acta Tech. Jaurinensis

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In case of construction investments, the cost estimation was always important. The reason for this is that after the planning, the most important issue is the cost of the investment. There are many different estimation methods. These estimates may vary in depth, depending on the task and the plan. The question is what happens if we wanted to predict not only the total cost of the investment but also the cost of some parts and structures. Such a cost element is the formwork cost of the monolithic reinforced concrete structures. This is a special processing aid, which makes it difficult to calculate accurately. The study is based on a cost analysis of the construction of 22 completed buildings over the last 10 years. Here, the cost of the formwork was compared to the total cost of the construction. By examining the 22 buildings together, we made findings over the years. We wanted to find out how much the construction price changes affected the structure and the formwork costs. The other direction of our research was the cost analysis within each building type, focusing on the formwork. In this analysis, we defined six types of buildings, such as detached, dwelling, condominium, public, office buildings, and other types of buildings. This study does not include the cost of the formwork types specific to each component, but from the foundation to the ascending structures, it analyses them in a single system.

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“…These formworks combine small-scale and large-scale formwork [12]. The boards can be used to assemble large panels of up to 30-40 m 2 with quick clamps [13].…”

Section: Literature Review 21 What Does Modern Formwork Mean?mentioning

confidence: 99%

Examination of the cost ratio of the formwork

Huszár

Lublóy

2021

Acta Tech. Jaurinensis

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“…For example, the FWS selected based on the FWS selection criteria and its effects on the project time, cost, and quality performances can be studied quantitively by considering the relationships among FWS selection criteria groupings. According to some studies, the FWS design and selection are mainly affected by the structural design criteria of the building construction project, e.g., [11,12]. Therefore, the structural design may also affect the project performance.…”

Section: Introductionmentioning

confidence: 99%

Formwork System Selection Criteria for Building Construction Projects: A Structural Equation Modelling Approach

2022

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Selecting the appropriate formwork system (FWS) is a critical aspect in the successful completion of reinforced concrete (RC) building construction projects. The selected FWS has a significant impact on the cost, time, and quality performances of the project. As there are many FWSs and formwork fabricators (FWFs) available, the selection of the FWS depends on several compromising and conflicting criteria. This study aims to identify the FWS selection criteria groupings (e.g., latent factors) and investigate the quantitative interrelationships among them. For this purpose, 35 FWS selection criteria were identified through literature review, and a questionnaire was developed. The data from the questionnaire were statistically analyzed, and five latent factors were identified: FWS-FWF characteristics, structural design, local conditions, cost, and performance indicators. A conceptual framework was developed based on the latent factors, and a structural equation modelling (SEM) approach was utilized to identify the effects among the latent factors. The results of the SEM approach confirmed that FWS-FWF characteristics are affected by the structural design and local conditions and FWS-FWF characteristics have a substantial effect on cost and the performance indicators of the project. The findings of this study may assist construction professionals in selecting the FWS in building construction projects.

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“…It uses standard prefabricated modular units with various sizes of formwork panels. The modular components are assembled on-site in different combinations with the aid of computer-aided design (Lee et al, 2018), and minor conventional formwork typically made of timber is required to complement the system by filling gaps. The system form has high productivity and good casting quality as well as can be recycled more times than conventional forms such as timber and wood-based form, and various types of system form have been developed to suit the required shapes of concrete structures with less effort, especially in urban city construction.…”

Section: Introductionmentioning

confidence: 99%

Development of an Advanced Composite System Form for Constructability Improvement Through a Design for Six Sigma Process

Lee

Kim

Lee

et al. 2020

Journal of Civil Engineering and Management

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System form is widely used when constructing concrete buildings and structures because it has high productivity and good concrete casting quality compared with traditional hand-set form. However, from a worker’s perspective, system form is still very harsh to handle because of its heavy weight, noise generation, and use of releasing agent, and it also attenuates the productivity of system formwork. Therefore, this study proposes the use of an advanced composite material-based concrete form for workers using a Design for Six Sigma (DFSS) process to improve constructability of system formwork. User requirements are systematically reflected in the technical characteristics of concrete form, and innovative principles are scientifically organized through the DFSS process that mainly consists of quality function deployment and theory of creative problem-solving methods. The proposed composite form showed improved performance in deriving high-quality formwork and worker-friendly working conditions compared with previous system forms. Additionally, this study demonstrated how the DFSS will be a valuable tool for technology development and systematic decision-making in building construction.

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Advanced planning model of formwork layout for productivity improvement in high-rise building construction

Cited by 30 publications

References 18 publications

Examination of the cost ratio of the formwork

Examination of the cost ratio of the formwork

Formwork System Selection Criteria for Building Construction Projects: A Structural Equation Modelling Approach

Development of an Advanced Composite System Form for Constructability Improvement Through a Design for Six Sigma Process

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