scholarly journals An Innovative Time-Cost-Quality Tradeoff Modeling of Building Construction Project Based on Resource Allocation

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Wenfa Hu ◽  
Xinhua He
Keyword(s):  
Construction Project ◽  
Project Managers ◽  
Building Construction ◽  
Computational Time ◽  
Time Cost ◽  
Construction Time ◽  
Trade Off ◽  
Construction Activity ◽  
Computational Time Cost

The time, quality, and cost are three important but contradictive objectives in a building construction project. It is a tough challenge for project managers to optimize them since they are different parameters. This paper presents a time-cost-quality optimization model that enables managers to optimize multiobjectives. The model is from the project breakdown structure method where task resources in a construction project are divided into a series of activities and further into construction labors, materials, equipment, and administration. The resources utilized in a construction activity would eventually determine its construction time, cost, and quality, and a complex time-cost-quality trade-off model is finally generated based on correlations between construction activities. A genetic algorithm tool is applied in the model to solve the comprehensive nonlinear time-cost-quality problems. Building of a three-storey house is an example to illustrate the implementation of the model, demonstrate its advantages in optimizing trade-off of construction time, cost, and quality, and help make a winning decision in construction practices. The computational time-cost-quality curves in visual graphics from the case study prove traditional cost-time assumptions reasonable and also prove this time-cost-quality trade-off model sophisticated.

scholarly journals Sequence of residential building construction in 99 days

2018 ◽  
Vol 7 (2.21) ◽  
pp. 377 ◽  
Author(s):  
S Durgalakshmi ◽  
K Mahendran
Keyword(s):  
Time Management ◽  
Construction Project ◽  
Residential Building ◽  
Project Planning ◽  
Building Construction ◽  
Cost Overrun ◽  
Time Cost ◽  
Construction Time ◽  
Key Factor ◽  
Effective Planning

Time management is one of the vital key factor in the project management of any construction project.  Effective planning, scheduling & control of construction project resulted in the reduction of construction time, cost overrun and disputes.  Not only effective planning, but also proper organization & sufficient flow of resources to a project can automatically achieve a good result when preliminary works has been done for each & every activity. The study area mainly focuses on the execution of work as it is scheduled before the commencement of construction.  This paper describes the sequence of residential building construction (G+2) in 99 days has been executed as a real time project and achieved the completion in 99 days.  For normal construction of (G+2) may be completed in 180days, but this project completed in 99 days by using the technique called Task Based Activity Execution (TBAE) to the labours.  During execution, delays are observed and overcome by using the preliminary works for the next activity.  The sequence of construction discussed here will definitely enhance the project planning skills for the forthcoming project.  

scholarly journals A review of causes of variation order in the construction of terrace housing projects in Malaysia

2019 ◽  
Vol 277 ◽  
pp. 03013
Author(s):  
Noraziah Mohammad ◽  
Zabidi Hamzah
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Construction Project ◽  
Extensive Literature ◽  
Time Cost ◽  
Construction Time ◽  
Building Projects ◽  
Housing Projects ◽  
Building Project

Variation order refers to any changes from the scope, plan, specification or contract document in the construction project. This changes of work is a common problem in construction projects in Malaysia. It is inevitable in any construction project and this problem can become more serious when variation order causes work progress to be impaired as a results it increased the construction time and cost that affects the construction industry in Malaysia. This paper critically review the causes of variation order in the construction industry on the double-storey terrace housing project in Malaysia. The discussions began with the construction industry in Malaysia and then related parties involved in the construction industry. The extensive local and abroad literature review on the definitions of variation order and analysis of past studies conducted on variation order and the previous study of the prediction model of variation. The extensive literature on variation order in the construction of building project may help to improve the performance in term of time, cost and quality of the construction of building projects in Malaysia.

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