Model validation of factors limiting the use of prefabricated construction systems in Turkey

Abstract

PurposePrefabricated construction technology enables relatively faster and easier construction of building structures at a lower project cost, providing improved quality control with minimal material waste. Despite the advantages of prefabricated construction systems, they are not extensively used in Turkey because of specific yet largely undefined challenges. Therefore, the purpose of this study aims to determine the factors currently affecting the extensive use of prefabricated construction systems in Turkey.Design/methodology/approachThe reasons for such systems not being used extensively in Turkey were examined using responses to a questionnaire distributed amongst architects working at design firms, prefabricated-building manufacturers and contractors. The obtained survey data were statistically analysed using the SPSS 22 and LISREL 8.7 software to rank the severity of the identified challenges and determine the most critical factors.FindingsEight critical factors groups affecting the use of prefabricated construction systems and their associated factors were identified according the responses provided by the participants. Potential solutions and recommendations were proposed based on these factor groups that are expected facilitate the implementation of prefabricated construction systems in Turkey.Originality/valueLittle previous research has provided insight into the specific factors limiting the use of prefabricated construction systems. This study accordingly approaches the subject considering all phases of prefabricated construction systems and presents a structural model of the factors obtained by a confirmatory factor analysis for application to expand the use of prefabricated construction systems.

Quality Risk Assessment of Prefabricated Steel Structural Components during Production Using Fuzzy Bayesian Networks: A Case Study in China

“…However, the quality risks associated with prefabricated steel structural components remain relatively unexplored, as most studies have focused on prefabricated concrete components (Kim et al, 2022). In the production stage, which signifies the initial phase of quality control for steel structural components, a diverse and complex array of quality challenges is encountered (Gumusburun Ayalp & Ay, 2021). As shown in Figure 1, numerous quality issues persist during the production process at a manufacturing plant in Changchun, Jilin, China.…”

Quality Risk Assessment of Prefabricated Steel Structural Components during Production Using Fuzzy Bayesian Networks

“…Despite the existing quality inspection tools and methods being relatively comprehensive and primarily focused on identifying and eliminating substandard components, these measures are primarily reactive in nature and do not offer effective prevention and control of the quality risks associated with structural steel components. In particular, the production stage of front-end quality control for steel components presents numerous and complex challenges [12], as illustrated in Figure 1, which depicts the various quality issues encountered by a component production plant in Changchun, Jilin, China. These issues, if not properly categorized and managed, limit the ability of enterprises to recognize and manage potential risks during the production phase of assembled steel structure components, thereby impacting the overall safety and reliability of assembled steel structure buildings.…”

“…The processing of raw materials during production fails to meet industrial standards, leading to various defects and deficiencies A11 Poor precision in production Insufficiency in precision and meticulous execution in production activities A12 Poor maturity of the process The manufacturing and processing methods of steel structure components production have not reached a high level of precision and optimization A Poor conditions for finished product storage…”

Challenges of offsite construction and BIM implementation: providing a framework for integration in New Zealand

“…However, the adoption of OSC has been hindered by several challenges, including a lack of advanced technology, lack of transportation logistics and lack of on-site assembly procedures (Gan et al, 2018;Hong et al, 2018). Various studies mentioned the lack of trained and skilled operatives or lack of educational programmes (Lou and Kamar, 2012;Ayalp and Ay, 2020) and lack of project management knowledge and poor understanding of OSC benefits as further challenges (Lou and Kamar, 2012;Gan et al, 2018;Zhang et al, 2018). Although one of the benefits of OSC is reducing the overall cost of the project (Wong et al, 2017;Darko et al, 2020), higher initial capital investment may be needed (Lou and Kamar, 2012;Sutrisna et al, 2019;Ayalp and Ay, 2020).…”

“…Various studies mentioned the lack of trained and skilled operatives or lack of educational programmes (Lou and Kamar, 2012;Ayalp and Ay, 2020) and lack of project management knowledge and poor understanding of OSC benefits as further challenges (Lou and Kamar, 2012;Gan et al, 2018;Zhang et al, 2018). Although one of the benefits of OSC is reducing the overall cost of the project (Wong et al, 2017;Darko et al, 2020), higher initial capital investment may be needed (Lou and Kamar, 2012;Sutrisna et al, 2019;Ayalp and Ay, 2020). Overall, the efficient implementation of OSC relies heavily on sharing practical knowledge between stakeholders, which requires robust information management systems and processes, including the use of advanced technologies such as BIM as the management platform.…”