Research on Assembly Sequence Planning and Optimization of Precast Concrete Buildings

Abstract

Abstract. Due to more complex structure and increasing prefabrication rate of precast concrete buildings, the assembly order between their constituent components is getting more and more attention. In order to solve the assembly sequence planning and optimization (ASPO) problem in precast concrete buildings, Building Information Modelling (BIM) and Improved Genetic Algorithm (IGA) are organically combined to propose a new method called BIM-IGA-based ASPO method. This method uses BIM for parametric modelling, uses IGA to search for an optimal assembly sequence, and then uses BIM again for visual simulation to further test the assembly sequence. Besides, IGA, which is improved in coding mode, crossover operation and mutation operation, is also used to achieve the dynamic adjustment of assembly sequence in construction process. A full-text example is used to explain the detailed operating principle of BIM-IGA-based ASPO method. The results indicate that the method can effectively find an optimal assembly sequence to reduce the assembly difficulty of a precast concrete building.

Building Information Modeling (BIM) for Structural Engineering: A Bibliometric Analysis of the Literature

“…With the sudden increase of interest in off-site construction-prefabrication-in many countries [101], increasing the prefabrication rate of precast concrete structures, automation of the assembly sequence and planning, and optimization must be topics important on the agenda within the domain of structural engineering [102]. With BIM in mind, future studies can target the unique characteristics of cast-in-place concrete in developing future versions of IFC, overlapping of structural elements, use of reinforcement bars, and the need for precision in loads and material considerations [103].…”

A Conceptual Development Framework for Prefabricated Construction Supply Chain Management: An Integrated Overview

“…Such as, the 3D dynamic interaction model of mobile client based on virtual reality can promote the information exchange of the whole supply chain [110]. Cloud computing and BIM provide solutions for data sharing among the architecture, engineering, and construction (AEC) industries, which further reduces supply chain costs [111] and time [112]. Applying advanced technology to collect and process large amounts of data quickly and accurately can effectively reduce manpower and material resources, thus improving the quality, efficiency, and management level of prefabrication construction.…”

Relationship between BIM Implementation and Performance of OSM Projects

“…For instance, Nath et al (2016) proposed that a BIM-based technologically enhanced workflow does lead to increased productivity in current off-site manufacturing industry; Liu et al (2016) found that the key drivers of the business environment and entrepreneurial cognition can improve the technological shift toward modular prefabrication; Hwang et al (2018) surveyed and confirmed that BIM is able to improve coordination and communication for prefabricated approaches in construction organizations in Singapore. Apart from that, many https://doi.org/10.1061/(ASCE)ME.1943-5479.0000704 https://creativecommons.org/licenses/by/4.0/ technological advances have been innovated and proposed from the integration of BIM and OSM through case studies (Issac et al 2016;Ramaji et al 2017;Zhong et al 2017;Jang and Lee 2018;Wang et al 2018). Overall, the previous studies above have rendered fundamental knowledge and certain foundations for the integration of BIM and OSM.…”

“…Most of the recent studies have focused on qualitative analyses of the integration of BIM and OSM for certain areas of improvement, such as the increased efficiency of construction activities through graph-based methodology (Isaac et al 2016), improved energy consumption through operational performance (Gerrish et al 2017), a simulation game for the improved learning process (Li et al 2018), a framework for information delivery in modular buildings (Ramaji et al 2017), improved visibility and traceability in prefabricated construction (Zhong et al 2017), improved productivity from BIM-based multitrade prefabrication through a case study analysis of a complex building (Jang and Lee 2018), improved collaboration and information https://doi.org/10.1061/(ASCE)ME.1943-5479.0000704 https://creativecommons.org/licenses/by/4.0/ exchange through a BIM-based interdisciplinary approach (Jin et al 2018), the optimal assembly sequence in a concrete building (Wang et al 2018), and a preliminary framework to integrate the last planner system with BIM and OSM (Goyal and Gao 2018). These previous studies mainly emphasized the technological aspects of the integration of BIM and OSM.…”