scholarly journals Modular Construction vs. Traditional Construction: Advantages and Limitations: A Comparative Study

2020 ◽  
Author(s):  
Subramanya Karthik ◽  
Kermanshachi Sharareh ◽  
Rouhanizadeh Behzad
Keyword(s):  
Comparative Study ◽  
Modular Construction ◽  
Traditional Construction

A Comparative Study between Lean Construction and the Traditional Production System

2017 ◽  
Vol 29 ◽  
pp. 118-132 ◽  
Author(s):  
Mohamed Saad Bajjou ◽  
Anas Chafi ◽  
Abdelali En-Nadi
Keyword(s):  
Comparative Study ◽  
Construction Industry ◽  
Production System ◽  
Manufacturing Industry ◽  
Lean Construction ◽  
Value Stream Mapping ◽  
Great Ability ◽  
Construction Companies ◽  
Traditional Production ◽  
Traditional Construction

The growing context of globalization permanently increases pressure on the construction companies to improve their performances in order to resist to the constraints of competitiveness in the international market. It has become ineluctable to look for introducing a new alternative capable of bringing creative improvement to the traditional production system. This paper will relate mainly to the most relevant management techniques in the construction industry, and more specifically, the lean construction concept. Initially, we will determine the main characteristics of the construction industry compared to the manufacturing industry according to three levels: on-site production, one of a kind projects, and complexity. Subsequently, we will focus our attention on the main sources of waste in the construction industry. Finally, a rigorous comparative study will be carried out to show the contribution of the lean construction tools in the promotion of traditional construction especially at the level of the following factors: Creating value and eliminating waste; Planning and mutual coordination; Site organization. Lean construction as Last Planner System (LPS), Value Stream Mapping (VSM), Just-in-Time philosophy, Visual management (VM) and 5S have shown a great ability to improve the traditional production system through waste reduction, encouraging people involvement, ensuring a pull flow production, and promotion of a continuous improvement philosophy.

Sustainable Construction Technology Based on Building Modules

2014 ◽  
Vol 1041 ◽  
pp. 231-234 ◽  
Author(s):  
Mária Kozlovská ◽  
Pavol Kaleja ◽  
Zuzana Struková
Keyword(s):  
Traditional Method ◽  
Sustainable Construction ◽  
Construction Technology ◽  
Modular Construction ◽  
Construction Methods ◽  
House Construction ◽  
Traditional Construction ◽  
Family House ◽  
Bearing Structure

The aim of the paper is to demonstrate the widely presented benefits of modular construction as compared with traditional construction method. A case study of family house construction by modular building method and traditional method is used to examine the structural, economic and time indicators of individual construction methods. The results are presented in tabular and graphical outputs and are compared each other in regard to different technological parts of the building. The paper provides the comparison of economic and time indicators resulting from budgets and time schedules of construction that are executed for different variants. Such comparison demonstrates exactly the benefits of modular construction. The building based on building modules consisted of steel bearing structure and enveloped by sandwich panels is adopted as the selected modular construction technology. The different variant, applied for comparison of modular and traditional construction, is represented by the building with comparable thermo-technical characteristics, constructed by traditional masonry method.

scholarly journals Benchmarking and Improving Dimensional Quality on Modular Construction Projects – A Case Study

2020 ◽  
Vol 1 (1) ◽  
pp. 2-21
Author(s):  
Christopher Rausch ◽  
Chloe Edwards ◽  
Carl Haas
Keyword(s):  
Construction Projects ◽  
Project Success ◽  
Improve Quality ◽  
Modular Construction ◽  
Geometric Data ◽  
Traditional Construction

Dimensional quality plays a key role in project success for modular construction. While approaches exist for reducing rework associated with dimensional variability in traditional construction (i.e., onsite resolution), more proactive approaches must be employed during offsite production of modules. Unfortunately, the stricter dimensional quality demands in modular construction are not yet completely addressed in existing guidelines or studies. As such, contractors often must resort to use of reactive measures to reduce rework. This paper bridges this gap by demonstrating how to implement continuous benchmarking and improvement of dimensional quality by comparing as-built and nominal 3D geometric data across modular construction projects. A case study is presented for two nearly identical modular construction projects, which are carried out in succession. The first project is used to quantify and benchmark key impacts on overall dimensional quality, while strategic improvements are introduced in the second project to improve quality and reduce rework. The results of this study demonstrate how contractors can achieve adequate dimensional quality and reduce rework on successive modular construction projects.

scholarly journals Key Considerations before Integrating Modular Construction: Adaptation to the Traditional French Construction Processes

2015 ◽  
pp. 131-142
Author(s):  
Zakaria Dakhli ◽  
Zoubeir Lafhaj ◽  
Marc Bernard
Keyword(s):  
Modular Design ◽  
Major Change ◽  
Successful Implementation ◽  
Modular Construction ◽  
Implementation Phase ◽  
Strong Focus ◽  
Organizational Planning ◽  
Potential Synergy ◽  
Competitive Prices ◽  
Traditional Construction

Industries around the world are improving continuously. They are converted into more efficient, dynamic and productive forms and construction is no exception to this principle. Indeed, this sector had started to get organized during the last decades. Modular design was introduced as an industrialization mean. However, few companies benefit from this concept in order to offer competitive prices and sustainable buildings. This paper, based on two case studies, presents key considerations for a successful implementation of modular design into an existing traditional construction business. Investigations were conducted to analyze the potential synergy and complementarity between modularization and the traditional French construction. The results show that modularization is viewed as a major change in the core business. As a consequence, modularization should be accompanied with a change management process. The results also revealed that modular construction goes hand in hand with a strong focus on technical frameworks. However, during the first implementation phase, spotlights should be slightly more directed into organizational planning and managerial postures.

scholarly journals Design of Sustainable Modular Wooden Booths Inspired by Revitalization of Croatian Traditional Construction and New User Needs Due to COVID-19 Pandemic

2022 ◽  
Vol 14 (2) ◽  
pp. 720
Author(s):  
Danijela Domljan ◽  
Luka Janković
Keyword(s):  
Rural Areas ◽  
Online Survey ◽  
Vernacular Architecture ◽  
Field Research ◽  
User Centered Design ◽  
Modular Construction ◽  
Healthy Environment ◽  
Wood Protection ◽  
The Republic ◽  
Traditional Construction

The paper presents the results of the first phase of the student project CROSTAND2, whose main goal is to revitalize the traditional construction techniques of vernacular architecture in the Republic of Croatia by developing modern sustainable prefabricated modular wooden buildings/public booths in accordance with users’ needs and habits. To incorporate conceptual design, the literature on Croatian construction and wood protection, prefabricated modular construction, and public urban spaces was analyzed and field research was conducted. Photo documentation was also collected in the village of Donja Kupčina, Zagreb County, Croatia. An online survey questionnaire on socializing habits in public spaces, before and during the COVID-19 pandemic, additionally analyzed new requirements for user-centered design. The obtained results, as well as results from previous project research, were used as a basis and inspiration for the design of a conceptual modular building inspired by traditional wooden joints, modular construction, and the emerging needs of users to socialize safely in a healthy environment. Conceptual solutions for a sustainable modular prefabricated wooden building for public use, intended for public urban and rural areas, have been proposed. Such constructions would ensure the sustainability of enjoying the natural environment for personal, tourist, and commercial purposes with the perpetuation of Croatian heritage building traditions.

scholarly journals Prefabricated Prefinished Volumetric Construction Joining Tech-niques Review

2016 ◽  
Author(s):  
Sze Dai Pang ◽  
J Y Richard Liew Liew ◽  
Ziquan Dai ◽  
Yanbo Wang
Keyword(s):  
Building Construction ◽  
Structural Performance ◽  
Modular Construction ◽  
Water Penetration ◽  
Bolted Connection ◽  
High Productivity ◽  
High Rise ◽  
Construction Methods ◽  
Traditional Construction ◽  
Local Code

Prefabricated Prefinished Volumetric Construction (PPVC), also known as volumetric modular construction has recently been adopted for high-rise building construction. However, efficient ways of joining the volumetric units on site have not been well developed. The intended high productivity is thus hindered and costs of the PPVC buildings are considerably higher than traditional construction methods. Additionally, issues such as module alignment and water penetration are often exposed during the assembly of modules. Moreover, local code requirements and geographical varieties often lead to different priorities and concerns in the development of joining techniques. This paper focuses on the generic joining techniques adopted in PPVC systems. Three joining methods are presented based on the different locations where the tightening of bolted connection occurs. The methods are evaluated based on the proposed constructability criteria and structural performance. The information gathered is useful for designers and contractors to understand the priorities and issues when developing new joining techniques.

Comparative Study on Self-Compacting Concrete Pouring Methods of AP1000 Structure Module

2013 ◽  
Author(s):  
Shuai Dai ◽  
Zhonghao Ye ◽  
Erfei Li ◽  
Chuyao Zheng
Keyword(s):  
Comparative Analysis ◽  
Comparative Study ◽  
Construction Technology ◽  
Modular Construction ◽  
Self Compacting Concrete ◽  
Self Reliance ◽  
Implementation Effect ◽  
Technical Features

Modular construction technology is one of the main technical features of AP1000. But after the construction practices of two self-reliance supporting projects, we found that concrete poured in the module is extremely difficult, the advantages of shorter construction duration in modular construction will be seriously weakened, so we designed three different pouring methods: layered pouring method, layered continuous pouring method and loop continuous pouring method. Deep comparative analysis on the principle, characteristic and implementation effect of these three pouring methods are studied in this paper.

scholarly journals Financial Modeling for Modular and Offsite Construction

2020 ◽  
Vol 10 (2) ◽  
pp. 207-217
Keyword(s):  
Lower Cost ◽  
State Of The Art ◽  
Capital Requirements ◽  
Modular Construction ◽  
Financial Modeling ◽  
Construction Methods ◽  
General Contractors ◽  
Traditional Construction ◽  
Lending Institutions ◽  
Current Practices

The advantages of using modular and offsite construction compared with the traditional construction methods are numerous due to its efficiency in delivering shorter schedules, lower cost, higher quality, and better safety. However, one of the biggest challenges facing the prefabrication industry today is the inherent difference between financing traditional construction and the upfront capital requirements for modular and offsite construction. Any solution for this problem should introduce better coordination among developers, banks, financial partners, lending institutions, manufacturers, and general contractors. Financing modular construction is challenging as banks are not familiar with the characteristics of this modern industry, and it is all about risk and return. Financing also helps in reducing risk for developers and allows them to undertake projects without having the upfront capital. However, few studies in literature focused on the financial modeling for modular and offsite construction. This paper is presenting a state-of-the art literature review for current practices concerning financial modeling for modular and offsite construction. This review discusses current challenges for financing this industry, as well as the introduced initiatives by governments to facilitate financing of modular and offsite construction. Conclusions are presented regarding the current practices for funding the prefabrication industry. Furthermore, recommendations are drawn for encouraging the development of prefabricated housing, and its ability in solving the current shortage of housing in different parts of the world.

Author response for "Laminar distribution of cortical projection neurons to the pulvinar: A comparative study in cats and mice"

2020 ◽  
Author(s):  
Bruno Oliveira Ferreira de Souza ◽  
Éve‐Marie Frigon ◽  
Robert Tremblay‐Laliberté ◽  
Christian Casanova ◽  
Denis Boire
Keyword(s):  
Comparative Study ◽  
Author Response ◽  
Projection Neurons ◽  
Cortical Projection ◽  
Laminar Distribution
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