scholarly journals Cost optimization for public school building projects during design stage using value engineering

2018 ◽  
Vol 162 ◽  
pp. 02033 ◽  
Author(s):  
Afrah Hassan ◽  
Majid Yahya

During the past ten years, various systems of building components have been applied in public school projects in Iraq, with no systematic method used for selection and evaluation, but only based on the designer’s experience. This paper displays evaluation and selection techniques based on value engineering methodology to find the optimal cost for school building projects in Iraq during design stage. The most important criteria for performance, constructability and sustainability criteria, which based on the Leadership in Energy and Environment Design used in this assessment were obtained from a survey of 49 professional designers and consultants, adoption of the Super Decisions Software Program, which uses analytical hierarchy process (AHP) for determining the relative importance of the main criteria and sub-criteria, that allows the decision-makers to evaluate the suitable alternatives of design for the external wall system in Iraq’s school buildings was built.

2021 ◽  
Vol 0 (0) ◽  
pp. 1-17
Author(s):  
Yi-Kai Juan ◽  
Ling-Er Liou

The Ministry of Education (MOE) of Taiwan invests about NTD 30 billion a year in Public School Building Projects (PSBPs). However, 95% of the PSBPs have been extended and have incurred increased costs. A PSBP performance evaluation and prediction system was established by using the Fuzzy Delphi Method (FDM), association rules and an Artificial Neural Network (ANN). Sixty-two Taiwanese PSBPs were used as the samples, while eleven high correlation factors that influence the project performance of PSBPs were defined, and the reasons leading to the poor project performance were discussed in this study. Moreover, the results of the test cases operated by ANN showed that the accuracy rate for schedule and cost variability predictions can reach 84%. The high accuracy rate indicated the reliability of priority control for high-risk projects in the future. The proposed approach can be provided to clients, design and construction firms, and project managers to understand the project performance in real time and to establish a dynamic tracking review and response measures for improving the overall project satisfaction.


2019 ◽  
Vol 26 (6) ◽  
pp. 1087-1104 ◽  
Author(s):  
Pramen P. Shrestha ◽  
Kabindra Kumar Shrestha ◽  
Haileab B. Zeleke

Purpose Change orders (COs) adversely affect the cost and schedule of projects, specifically during the construction phase. COs of 95 new public school building projects contracted by the Clark County School District (CCSD) of Nevada were analyzed to quantify the cost and schedule growth as well as to determine the effect of COs on cost and schedule growth. The paper aims to discuss these issues. Design/methodology/approach The data were collected from CCSD through questionnaire survey. Descriptive statistics and statistical tests were conducted to determine the effect of COs on cost and schedule growth. Findings It was found that the average amount of COs as well as cost and schedule overruns were 5.9, 3.0 and 7.4 percent, respectively. Statistical tests showed that the amount of COs had an adverse effect on schedule growth; schedule overruns in projects with less than 4 percent COs were significantly lower than projects with more than 4 percent COs. Cost overruns did not significantly differ in those two types of projects. The primary contribution of this study is that it provides the tools and the framework for school district engineers to determine the probability of the occurrence of COs as well as the optimum percentage of COs for a minimum effect on cost and schedule growth of new public school buildings. Probability curves were also developed to determine the likelihood of the occurrence of COs, cost growth and schedule growth in these projects. These findings could be used by school districts to avoid or reduce COs in future projects, minimizing the effect on cost and schedule growth during the construction phase. Research limitations/implications The findings and the probabilities curves developed in this study should be used carefully in other cases. These data were specific to the owner, location and types of buildings and generalizing these findings may have negative consequences. Practical implications The practical implications are that this study could provide a tool to school building administrators to determine the probability of having COs as well as cost and schedule overruns and the effects of COs on cost and schedule overruns. To the authors’ best knowledge, no other studies of this type have been conducted previously. Social implications The social implication of this study is it will help to efficiently use the tax payers’ money while building new school buildings. Originality/value This study has collected the hard data of COs, cost and schedule data of CCSD new school building projects. Therefore, the data are from the projects completed by CCSD. So, the paper is written from the original data received from CCSD.


2021 ◽  
Vol 10 (2) ◽  
Author(s):  
Amri Amri ◽  
Fatimah Fatimah ◽  
Khairul Inda

Camilan akar kelapa merupakan makanan ringan yang diproduksi oleh UD. Angsa Dua sejak tahun 1995. Produk camilan ini perlu mendapat perhatian terutama berhubungan dengan kemasannya, dikarenakan selama ini kemasan yang digunakan kurang menarik, sehingga berpengaruh terhadap nilai jual.  Penelitian ini bertujuan merancang kemasan camilan akar kelapa untuk meningkatkan daya tarik konsumen yang nantinya akan berdampak kepada pertambahan nilai jual.  Metode yang digunakan dalam rancangan kemasan adalah value engineering dan analytical hierarchy process (AHP). Metode value engineering diterapkan pada perbaikan nilai, performansi dan biaya dari desain kemasan dengan kriteria: merek dagang, ukuran berat bersih, identitas produk, menarik, kesesuaian warna, tipografi dan ukuran huruf. Metode analytical hierarchy process (AHP) diterapkan pada fase analisis untuk membantu mengetahui prioritas dari kriteria yang sesuai dengan keinginan konsumen. Hasil penelitian menunjukkan desain alternatif dengan nilai performansi tertinggi adalah alternatif 1 (A-B-D-F), yaitu desain dengan material kemasan terbuat dari aluminium foil standing pouch, menggunakan stiker cromo, warna yang digunakan bernuansa terang dan menggunakan huruf yang sesuai. Desain alternatif yang terpilih ini memiliki nilai (value) sebesar 0,1568. Nilai ini diperoleh dari performansi sebesar 41,7 dan biaya untuk ukuran ¼ kg Rp.3.100 per kemasan, biaya untuk ukuran ½ kg Rp.3.600 per kemasan dan biaya untuk ukuran 1 kg Rp.400 perkemasan.


1992 ◽  
Vol 30 (8) ◽  
pp. 28-38 ◽  
Author(s):  
S. Nishibayashi ◽  
K. Yamane ◽  
M. Shigeyoshi ◽  
H. Nakamura

2020 ◽  
Author(s):  
Hasyimah Ghazali ◽  
Caesar Sokatte Bernard ◽  
Fakhrul Radzi Zahri ◽  
Nur Sakinah Khairul Salleh ◽  
Harni Farihah M. Safari Lai ◽  
...  

2014 ◽  
Vol 1065-1069 ◽  
pp. 1626-1633
Author(s):  
Xiang Lei Hu ◽  
Sheng Cai Li ◽  
Hong Liang Yan ◽  
Gang Meng

The Analytic Hierarchy Process (AHP) method presented in this paper is used to analyze three representative exterior wall assemblies from the perspective of manufacturers, designers, and consumers. Considering technical, economic, social, and environmental factors, a model and subsequent indicators were developed for qualitative and quantitative analyses. The approach discussed in this paper originated as a response to recent building code changes in China, and the need for value-engineers to better understand a set of newly developed wall construction assemblies in a way that minimizes subjective errors in the value-engineering evaluation process.


Author(s):  
Justin Kramer ◽  
Brenton Greska ◽  
Anjaneyulu Krothapalli

This paper deals with the construction and implementation of the Off-Grid Zero Emissions Building (OGZEB), a project undertaken by the Energy Sustainability Center (ESC), formally the Sustainable Energy Science and Engineering Center (SESEC), at the Florida State University (FSU). The project involves the design, construction and operation of a completely solar-powered building that achieves LEED-NC (Leadership in Energy and Environment Design-New Construction) platinum certification. The 1064 square foot building is partitioned such that 800 square feet is a two bedroom, graduate student style flat with the remaining 264 square feet serving as office space. This arrangement allows the building to serve as an energy efficient model for campus designers in student living and office space. The building also serves as a prototype for developing and implementing cutting edge, alternative energy technologies in both residential and commercial settings. For example, hydrogen is used extensively in meeting the energy needs of the OGZEB. In lieu of high efficiency batteries, the excess electricity produced by the buildings photovoltaic (PV) panels is used to generate hydrogen via water electrolysis for long term energy storage. The hydrogen is stored on-site until needed for either generating electricity in a Proton Exchange Membrane (PEM) fuel cell stack or combusted in natural gas appliances that have been modified for hydrogen use. The use of hydrogen in modified natural gas appliances, such as an on-demand hot water heater and cook top, is unique to the OGZEB. This paper discusses the problems and solutions that arose during construction and includes detailed schematics of the OGZEBs energy system.


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