scholarly journals Reviewing of the Simulation Models in Cost Management of the Construction Projects

2016 ◽  
Vol 2 (11) ◽  
pp. 607-622
Author(s):  
Faiq Mohammed Sarhan Al-Zwainy ◽  
Reem Amer ◽  
Tareq Khaleel
Keyword(s):  
Construction Management ◽  
Construction Projects ◽  
Cost Management ◽  
Simulation Models ◽  
Simulation Modelling ◽  
Construction Cost ◽  
Computational Techniques ◽  
High Fidelity Simulation ◽  
Advantages And Disadvantages ◽  
Cost Simulation

Simulation and computational techniques cover a variety of aspects also had proved its feasibility in construction management as whole, so it had adopted by a lot of researches during the last decades with rapid progress. The current study presents a focused review about construction cost simulation using, and provides an overview of such advancements achieved between 1990 and 2016 in construction management sector. This paper focuses specifically on many different topics including construction cost simulation, simulation modelling concept, steps of simulation conducting, simulation purposes, simulation advantages and disadvantages, etc.  Major advances in construction cost simulation area are highlighted, as well as the trends for development and application. Over the selected study period, there has been a substantial increase in the use of high-fidelity simulation in construction cost management.

Organizational Framework of Construction Cost Management in the Context of the Implementation of Targeted Investment Programs (Through the Example of Moscow)

2020 ◽  
Vol 26 (6) ◽  
pp. 656-664
Author(s):  
Yu. S. Prokhorova ◽  
I. V. Karakozova
Keyword(s):  
Construction Projects ◽  
Cost Management ◽  
Public Investment ◽  
Methodological Approach ◽  
Practical Experience ◽  
Construction Cost ◽  
Construction Process ◽  
Information Monitoring ◽  
Executive Authority ◽  
Organizational Framework

Currently, there is an excess of public investment allocated for the implementation of targeted investment programs related to construction in Moscow compared with the estimated limit, which requires a set of organizational tools for cost management (algorithms, models, methods, tools, etc.) aimed at improving the accuracy and reliability of the estimated construction cost.Aim. The presented study aims to develop a methodological approach to the organization of construction cost management in the context of public investment, with allowance for the enhanced interaction of executive authorities – both with one another and with other participants of the investment-construction process.Tasks. The authors analyze the activities of an executive authority in the development, coordination, and implementation of investment programs for the construction of facilities at the territorial level under modern conditions and develop a methodological approach to construction management with allowance for the enhanced interaction of executive authorities – both with one another and with other participants of the investment-construction process.Methods. The theoretical and methodological basis of this study includes fundamental provisions of management theory, economic theory, cost engineering, pricing in construction, mathematical modeling, project and risk management, practical experience and scientific works of Russian and foreign experts on the problem under consideration.Results. An organizational framework for construction cost management makes it possible to optimize the interaction of executive authorities – both with one another and with other participants of the investment-construction process – and to use methodological approaches to the formation of a reliable maximum limit of public investment for the purpose of implementing investment programs in construction in accordance with the set limit by establishing an Information Monitoring Center and a database to justify the estimated construction cost, creating and maintaining a database (information resource) containing all information about similar objects in accordance with economic efficiency criteria, monitoring implemented objects to update the database of construction projects.Conclusions. A methodological approach to the organization of construction cost management in the context of public investment is developed with allowance for the enhanced interaction of executive authorities - both with one another and with other participants of the investment-construction process.

Simulation techniques for cost management and performance in construction projects in Malaysia

2017 ◽  
Vol 7 (5) ◽  
pp. 534-545 ◽  
Author(s):  
Ali Mohammed Alashwal ◽  
Min Yi Chew
Keyword(s):  
Cost Estimation ◽  
Construction Projects ◽  
Cost Management ◽  
Cost Performance ◽  
Content Type ◽  
Simulation Techniques ◽  
Modeling Uncertainties ◽  
Cost Simulation ◽  
Estimation And Control ◽  
And Performance

Purpose Simulation techniques for cost management are useful for modeling uncertainties, making decisions, and improving the accuracy of cost estimation. Despite their usefulness, the application of these techniques in construction projects seems to be uncommon in the construction sector in Malaysia. The purpose of this paper is to determine the application of simulation techniques for cost estimation and control and to assess their influence on project cost performance. Design/methodology/approach A survey questionnaire was used to collect data from 83 government agencies, consultant firms, and contractor firms in Kuala Lumpur, Malaysia. Findings The findings revealed that knowledge of respondents and usage of cost simulation techniques in the Malaysian construction industry is low. In addition, main barriers of implementing cost simulation techniques are identified. Cost performance of construction projects in Malaysia is satisfactory; however, there is no association between this performance and the application of simulation techniques. Originality/value This paper contributes to construction management field by highlighting the main simulation techniques for cost management and drawing the attention of construction professionals and contractors to implement these techniques in construction projects.

Adaptive response prediction for aerodynamic shape optimization

2017 ◽  
Vol 34 (5) ◽  
pp. 1485-1500
Author(s):  
Leifur Leifsson ◽  
Slawomir Koziel
Keyword(s):  
Shape Optimization ◽  
Adaptive Response ◽  
Simulation Models ◽  
Response Prediction ◽  
High Fidelity ◽  
High Fidelity Simulation ◽  
Aerodynamic Shape Optimization ◽  
Content Type ◽  
Aerodynamic Shape ◽  
Fidelity Model

Purpose The purpose of this paper is to reduce the overall computational time of aerodynamic shape optimization that involves accurate high-fidelity simulation models. Design/methodology/approach The proposed approach is based on the surrogate-based optimization paradigm. In particular, multi-fidelity surrogate models are used in the optimization process in place of the computationally expensive high-fidelity model. The multi-fidelity surrogate is constructed using physics-based low-fidelity models and a proper correction. This work introduces a novel correction methodology – referred to as the adaptive response prediction (ARP). The ARP technique corrects the low-fidelity model response, represented by the airfoil pressure distribution, through suitable horizontal and vertical adjustments. Findings Numerical investigations show the feasibility of solving real-world problems involving optimization of transonic airfoil shapes and accurate computational fluid dynamics simulation models of such surfaces. The results show that the proposed approach outperforms traditional surrogate-based approaches. Originality/value The proposed aerodynamic design optimization algorithm is novel and holistic. In particular, the ARP correction technique is original. The algorithm is useful for fast design of aerodynamic surfaces using high-fidelity simulation data in moderately sized search spaces, which is challenging using conventional methods because of excessive computational costs.

Research on Project Cost Management Model of Ecological Construction

2011 ◽  
Vol 480-481 ◽  
pp. 1197-1200
Author(s):  
Feng Liu ◽  
Jun Min Wang
Keyword(s):  
Project Management ◽  
Energy Consumption ◽  
Construction Projects ◽  
Cost Management ◽  
Building Energy ◽  
Management Model ◽  
Building Energy Consumption ◽  
Specific Cost ◽  
The Cost ◽  
Ecological Construction

In recent years, in order to reduce building energy consumption in China, and vigorously promote the development of ecological construction, the paper studies disadvantages of the cost of traditional project management applications in the ecological construction projects, exploring specific cost management adapt to the ecological construction project.

scholarly journals Alternative financial models for attracting investments in municipal investment and construction projects

2018 ◽  
Vol 170 ◽  
pp. 01105 ◽  
Author(s):  
Oksana Kurakova
Keyword(s):  
Construction Projects ◽  
Financial Models ◽  
Internet Marketing ◽  
Advantages And Disadvantages ◽  
Innovative Model ◽  
Use Of Internet

Investment and construction projects, which require colossal costs, are especially affected in the conditions of scarcity of funds. City authorities also experience an acute shortage of finances for the implementation of municipal investment and construction projects. This article presents the mechanism of applying innovative tools for investments attraction in Russia to implement investment and construction projects. These tools include Internet marketing tools. The article presents an analysis of characteristics of each tool, their advantages and disadvantages in use. This article also includes practical examples of how these tools can work for the purposes of investment and construction projects implementation, including municipal or social ones. Examples of already implemented projects based on the use of Internet marketing tools are given. The author suggests an innovative model of municipal projects financing. The analysis showed that similar technologies for municipal investment and construction projects financing are quite viable and are currently underestimated in Russia.

scholarly journals Closest and long-term prospects of 3D-printing for obstetrics and gynecology

2021 ◽  
Vol 20 (1) ◽  
pp. 76-81
Author(s):  
E. V. Kudryavtseva ◽  
V. V. Kovalev ◽  
E. S. Zakurinova ◽  
G. Muller-Kamskii ◽  
V. V. Popov
Keyword(s):  
3D Printing ◽  
Scientific Literature ◽  
Simulation Models ◽  
Surgical Instruments ◽  
Obstetrics And Gynecology ◽  
Scientific Review ◽  
Advantages And Disadvantages ◽  
The Creation ◽  
Dimensional Printing

Introduction. Despite the notable and rapid progress in the development of medical 3D printing in recent years, not much is known about the use of this technology in obstetrics and gynecology.The purpose of our review of scientific literature was to determine the current level of 3D printing development, discuss the closest and long term prospects for using this technology in obstetrics and gynecology, and analyze its potential advantages and disadvantages.Materials and methods. We searched for scientific literature. 378 papers passed a three-step screening, as a result of which 42 sources were selected for the final scientific review.Results and discussion. The main areas in which dimensional printing can be used in this area of medicine is the creation of simulation models and training for students, the creation of anatomical models for preoperative preparation, the surgical instruments, the creation of new dosage drug forms (including transvaginal ones), and bioprinting of organs and tissues.Conclusion. The presented literary review allows us to conclude that 3D printing the obstetrics and gynecology is a current rapidly developing direction. The organization of 3D modeling and printing laboratories can significantly increase the efficiency of teaching students and residents. In addition, obstetricians-gynecologists and surgeons should be informed about the possibility of 3D printing surgical instruments according to an individual design. It can inspire them to implement their own ideas and develop domestic innovative developments. Three-dimensional printing of dosage forms and bioprostheses requires more complex technological solutions, and is not yet used in clinical practice. However, given the enormous prospects for these areas, various grants should be envisaged for their development in Russia

scholarly journals CRITICAL FACTORS VARYING CONSTRUCTION COST

2009 ◽  
Vol 12 (1) ◽  
pp. 104-117
Author(s):  
Tam Thi Minh Nguyen ◽  
Thi Hao Cao
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Multiple Linear Regression Model ◽  
Construction Cost ◽  
Ho Chi Minh City ◽  
Cost Overrun ◽  
Key Factors ◽  
Industry Sectors ◽  
The Relationship ◽  
Chronic Problem

Construction industry is considered to be one of the most important industries in Vietnam's economy. But many construction industry sectors have been experienced chronic problem as cost overrun. Therefore, a conceptual model of factors influencing construction cost was developed to determine the key factors that cause difference between budget cost and actual cost and some solutions are recommended to be applied to achieve the best outcome of cost. The result of analyzing 216 construction projects completed from 2002 to 2007 by companies located in Ho Chi Minh City indicated 6 main factors varying construction cost: project planners, project executives, economics, political, natural environment, fraudulent and lost. The results of multiple linear regression model confirmed the relationship between these above 6 factors and construction cost with the theories are supported at the statistically significant level of 0.05.

scholarly journals A Holistic and Systematic Assessment of Maintenance Approaches in Heritage Sites

2021 ◽  
Vol 16 ◽  
pp. 335-350
Author(s):  
Abobar Al-Sakkaf ◽  
Samer El-Zahab ◽  
Eslam Mohammed Abdelkader ◽  
Ghasan Alfalah
Keyword(s):  
Construction Projects ◽  
Future Research ◽  
Research Attention ◽  
Systematic Assessment ◽  
Heritage Sites ◽  
Advantages And Disadvantages ◽  
Research Areas ◽  
Heritage Site ◽  
Time Period ◽  
Ultimate Objective

Maintenance approaches of heritage sites (MAHs) on heritage sites have become essential in both the industry and academia as construction projects grow increasingly complex. With a prime goal of increasing its productivity and safety, MAHs research has witnessed tremendous growth over the past three decades. With the increase in research grows the necessity to monitor the research growth of a research topic to identify its trends and gaps, and hence shed the light on research areas that warrant future research attention, there is a lack of systematic literature analysis in MAHs field. To fill this gap, this paper recruited a mixed-review method of scientometric and systematic reviews of research papers on MAHs published from 1990 to 2020 (as of mid of July). Its ultimate objective is to identify current trends, technologies, and techniques in the field of heritage site maintenance and layout their advantages and disadvantages. Additionally, country contributions are highlighted to identify which countries produce the most effective research in the field. Finally, the most cited articles are identified to highlight important topics in the selected time period. As a result, Journal of Destination Marketing & Management has the highest ranking across the different journals in the area of MAHs based on its number of published articles and their citations. In addition, the publisher Elsevier has the highest number of published articles with 58. Results also demonstrated that the collaboration between Ecuador and Spain accomplished the highest ranking, such that the strength link was estimated to be equal to 3. Moreover, the highest repetitive keywords were indicators with 20 times and cultural heritage cities with 19 times.

scholarly journals Characteristics of Procurement Methods in Malaysia – Comparing Design-Bid-Build, Design-Build and Construction Management

2020 ◽  
Vol 11 (3) ◽  
Author(s):  
Azeanita Suratkon ◽  
◽  
Riduan Yunus ◽  
Rafikullah Deraman ◽  
◽  
...  
Keyword(s):  
Construction Industry ◽  
Construction Management ◽  
Construction Projects ◽  
Building Construction ◽  
Technical Expertise ◽  
Time Cost ◽  
Project Complexity ◽  
Design Build ◽  
Procurement Method ◽  
Design Bid Build

Design-Bid-Build (DBB) or commonly known as Traditional method is the earliest and most prevalent procurement method used in Malaysian construction industry. Design-Build (DB) and Construction Management (CM) procurement methods were later introduced in Malaysia as an endeavour to satisfy and accommodate the increase in project complexity and the need for avoiding drawbacks of the Traditional methods. Each procurement method has different nature and possesses certain characteristics. Therefore, this study was carried out to ascertain and compare the characteristics of these three procurement methods that are implemented in building construction projects in Malaysia. A questionnaire survey was conducted among architects, consultants, contractors and owners or developers to elicit their feedback on the characteristics which were categorised into time, cost, quality, complexity and flexibility, degree of involvement and responsibility allocation and technical expertise. The findings indicated that only DB method almost fulfils all the characteristics under the six categories, whereas, DBB methods garnered agreement only for certain characteristics under time, cost, complexity and flexibility and technical expertise categories. Meanwhile, the only CM method’s characteristics that satisfy agreement from the respondents are the often used of fast track approach and lack of certainty in price. This study concludes that when a procurement method is adopted for a construction project, not all the features or characteristics will turn out as expected. There are many factors that contribute and are influential on the success in procurement methods that are worth for further investigation.

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