Advanced formwork method integrated with a layout planning model for tall building construction

Purpose -The purpose of this paper is to establish labour productivity norms (LPNs) on an elemental basis to investigate a measurement for the labour productivity (LP) of aluminium system formwork (ASF) in low-cost housing projects (LHPs) in Sri Lanka.Design / methodology / approach -Case study approach was selected as the most appropriate for the study and semi-structured interviews, document review and direct observations were used for the data collection. Four case studies were conducted. Eight semi-structured interviews were conducted among four cases. Further, document review was used in three cases, and direct observation was

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“…Kim et al (2012) have also reported that ASF had a good potential for managing cost, time and government requirements.…”

Section: Discussionmentioning

confidence: 99%

Developing labour productivity norms for aluminium system formwork in Sri Lanka

Jayasinghe

Fernando

2017

BEPAM

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“…By executing construction processes with standardized components, system formwork method offers a systemized operation processes with positive effects on improving quality, safety, and constructability [4]. As a result, current trend of high-rise building construction prefers to form a high-rise building structure by operating either crane-lifted-, or self-climbing formwork system during structural framework [5,6].…”

Section: Climbing Formwork System In High-rise Building Constructionmentioning

confidence: 99%

“…It has been deduced from literature review and interview with experts who majored in building structure that researches on automating layout planning of horizontal formwork and vertical temporary facilities have been previously proposed [4,[8][9][10]. In case of horizontal formwork, layout planning has been rd International Symposium on Automation and Robotics in Construction (ISARC 2016) automated based on imported floor plans of building solely by focusing on interior space, not the outer boundary of the building.…”

Section: Layout Planning Of Climbing Formwork System Compared With Otmentioning

confidence: 99%

Automated Layout Planning of Climbing Formwork System Using Genetic Algorithm

Kim¹,

Kim²,

Lim³

et al. 2016

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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-Layout planning of climbing formwork system is a prerequisite for executing efficient and costeffective structural framework in a high-rise building construction. However, most of the formwork system layout is operated manually under heuristic approach of the supervisor, and thus is prone to errors that affect constructability of the entire construction. Furthermore, inflexibility of the current method to changes in building design also results in unexpected variability during system utilization. Automated formwork layout method that considers essential factors such as configurations on unit module of the form as an input data, information on building parameters for specifying possible areas of system installation, and configurations on working platform for optimal arrangement of unit systems can be suggested as an alternative to the current manual execution of formwork layout. Therefore, this study proposes an automated layout planning method of climbing formwork system by using genetic algorithm. The method developed in this study is to be utilized for reasonable decision making of the construction worker in control of the automated layout planning.

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“…In tall building construction, automated and equipment-driven methods are suggested as feasible alternatives to increase productivity in response to the decrease of skilled labor 1) . Especially, the formwork method with less manual operation can largely facilitate a reduction of the cycle time for structural framework.…”

Section: Introductionmentioning

confidence: 99%

Simulation-based Planning Model for Table Formwork Operation in Tall Building Construction

Lim

Kim

Cho

et al. 2017

Journal of Asian Architecture and Building Engineering

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Operation planning for table formwork using a crane-independent lifting system (CLS) is a crucial factor affecting productivity for formwork in tall building construction. Inappropriate heuristic operation plans are likely to increase work duration because of temporarily displaced stacks of table forms, and may also increase costs because of excessive use of equipment. The authors propose a simulation-based operation planning model for table formwork for efficient operations in tall building construction. By optimizing the shifting sequence of table forms and the location of the CLS in a case study, the proposed model reduced working hours for table forms by 6.62% from the working hours derived by a heuristic approach. Furthermore, the derived alternatives reduced working hours by a maximum of 45%, depending on the number of trolleys used. This study can be utilized for informed decision-making by construction workers in tall building construction while selecting the optimal operation plan for table forms by considering project cost and schedule.

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Advanced formwork method integrated with a layout planning model for tall building construction

Cited by 23 publications

References 2 publications

Developing labour productivity norms for aluminium system formwork in Sri Lanka

Developing labour productivity norms for aluminium system formwork in Sri Lanka

Automated Layout Planning of Climbing Formwork System Using Genetic Algorithm

Simulation-based Planning Model for Table Formwork Operation in Tall Building Construction

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