ABSTRACT
“SIMULATION OF CONSTRUCTION ACTIVITES USING PROCESS SIMULATION SOFTWARE FOR EFFICIENCY IN COST, DURATION AND PRODUCTIVITY”
A construction project involves numerous complex construction activities, which are influenced by uncertainties. A considerable number of activities cannot be experimented before the actual project because they would cost a noteworthy amount of time and money. These construction activities can be analyzed using simulation software packages.
There are various simulation software packages available in the market. In this paper EZSTROBE and PROBSCHED are used for simulation of construction activities. Dr.Martinez claims that “EZSTROBE is a very simple but powerful general purpose simulation system designed for modeling construction operations, but domain independent and thus useful for modeling a wide variety of systems in any discipline” (Martinez, 2001). EZSTROBE is a good tool for planning resources.
Martinez and Ioannou claim that “Critical Path Scheduling is a well developed tool for construction planning at the project level” (Martinez and Ioannou, 1998) PROBSCHED is used for scheduling of construction activities. These simulation software packages run using a simulation tool called as STROBOSCOPE. This paper describes a way to use these simulation software packages using an example of earth moving operations in the case of EZSTROBE and a residential house example in the case of PROBSCHED.
1. INTRODUCTION
Simulation methods can be termed as one of the most effective methods available currently due to their modeling versatility and power (Martinez and Ioannou, 1998). There are various benefits for using simulation for construction activities. The benefits include estimation of productivity ...
... middle of paper ...
...challenge," Journal of Construction Engineering and Management, ASCE. 119(3), 417-425.
Halpin, D.W. (1973). An investigation of the use of simulation networks for modeling construction operations.
Marwa M.Hassan and Stan Gruber. (2006). Application of discrete-event simulation to study the paving operation of asphalt concrete. Dept of Civil Engineering, Bradley University, Peoria .
Law and Kelton. (2000). Simulation Modeling and Analysis, 3/e.
Julio C.Martinez and Photios G. Ioannou. (1998). State-Based Probabilistic Scheduling Using STROBOSCOPE’s CPM Add-On. Construction Congress, ASCE.
Julio C.Martinez. (2001). EZSTROBE-General purpose simulation system based on activity cycle diagrams.
Julio C. Martinez. (1994). State and resource based simulation of construction processes.
J.Riggs and Tim West. (1986). Engineering economics, 3r ed. New York: McGraw-Hill.
...rmation modeling in support of sustainable design and construction. Journal of Construction Engineering and Management, 139(1), 4-34.
Whereas, there have not been many studies exploring mathematical modeling that integrates the subjects of CSCM and construction project management. In this study, we proposes a coordinated supplier selection and resource-dependent project network with final project review sequencing which builds an interface between CSCM and construction project
The paper presents a detailed discussion on implementation of BIM in a construction project by defining a BIM team in the various phases of construction i.e. from conception to commissioning. Also, the paper presents a brief discussion on processing the information utilizing the i-rooms.
The book contains the most effective methods of completing a project within its budget, schedule, and the resource constraints. It briefly explains all the stage process of every major project goes through. From creating the plan to monitoring and evaluation, there is a lot for project managers and supervisors to learn.
Construction Management is the overall planning, outlook, coordination, budget and control of a construction project from start to finish. Without them, construction projects would be very unorganized and chaotic. They make sure projects run smoothly and efficiently. They work with electricians, plumbers, carpenters and general contractors to produce the safest and best way to complete the project for the customer. Being a construction manager is a good job because they help many people build what they need.
Pikas, E. (2013). Building information modeling dcation for construction engineeng and managemet. ii; procedures and implementaion case stdy. Journal of Construction Engineering and Management, 139(11), 04013016-1 - 04013014-11.
I have completed Bsc (Hons) Construction management at the University of West London, and I would now like to further my career by studying MSC Project enterprise and management at UCL. I have made this decision after understanding that this course will enable me to develop a broad understating of construction management of large and complex projects and increase my commercial awareness of these projects. I also expect this course to be taught with both academic rigour and place consistent emphasis on practical application of what I learn to construction environment. After working in construction for industry for almost 2 years, and studying a bachelor’s degree I feel I am more than capable of completing Msc Project Entriprise with success as I have already experienced the rigors & dynamics of university education.
The main important role of the Project Management in the construction industry is to make everyone work towards the same goal that must be aligned with the strategic objectives of the company. One of the most relevant differences between any Project Management and the ones working on the Construction industry is the knowledge and skill in certain areas related to the field, it is essential to have a good understanding of construction methods, materials, scheduling and blueprint reading as well as knowledge in communication and leadership skills. In construction technology plays an important aspect to considered, for a Project Management it is important to be updated in any new technology used by construction companies. (Dykstra, 2011)
In building construction and in fire prevention there are organizations that have created a useful system on how to determine what type of building falls under which category. The ICC (International Code Council) and the NFPA (National Fire Protection Association) create these building codes for the safety of firefighters. The two most commonly known standards for building classifications are the NFPA 5000 and also the International Building Code (IBC). The two are very similar, however, they different on sub-categorizing. The International Building Code uses Roman numerals behind the type of construction. In addition to subcategories with letters for each five classes and the amount of fire resistance provided for each building. NFPA uses Roman numerals behind the type of construction. Unlike the IBC, NFPA uses a 3-digit number system behind that to sub categorize the fire hourly rating for the load-bearing walls, for the beams and columns, and for the floor construction. The IBC and NFPA breaks down construction in to five classes, Type I, Type II, Type III, Type IV, and Type V.
Accurately forecasting the cost of projects is vital to the survival of any business or organization. Cost estimators develop the cost information that business owners or managers, professional design team members, and construction contractors need to make budgetary and feasibility determinations. From an Owner's perspective the cost estimate may be used to determine the project scope or whether the project should proceed. According to the U.S. Department of Labor there were about 198,000 cost estimators in 1994. That of which 58% work in the construction industry, 17% employed in manufacturing industries, and the remaining 25% elsewhere. From this we could conclude that a great deal of cost estimation lies in the construction industry, where multi-million dollar contracts are formed after a thorough cost estimation.
When trying to design for automated construction systems, all parameters of a construction process must be integrated accurately and constantly to satisfy relevant parties, and finally, the quality of construction materials and products in terms of geometry, physical and design aspects will be changed. In order to reach automated construction goals, all the following aspects have to be fulfilled:
Brooke (1997), explains Estimation as the technical procedure of anticipating the value of the project. Building construction estimation is the process of acquiring the construction value for the whole project before the project starts. Thus, construction attaining process depends hugely on financial management to sustain workability and smooth operations. The delay in construction is a global issue which is due to improper preparation of estimates and lack of drawings (Ajanlekoko, 1987). In accordance to Gkritza (2008), the source of delay in a project are identified to be in the initial stages, like bad quantification, errors in design and ground conditions. Thus, the purpose of a proper estimate is to foretell the cost needed to finish the
Johns Hopkins University. (2009, March). In disaster-prone areas, construction needs a new approach. Retrieved from http://phys.org/news157051992.html
We can estimate the completion time of the project using this method and can reduce the factor of uncertainty by considering both the shortest and longest time calculation for the critical path.
“Ballard (2000) indicates that Last Planner System (LPS) is a technique that shapes workflow and addresses project variability in construction”. (Salem, 2005). The purpose of Last Planner System is to establish a coordinated plan of action while encouraging collaboration, cooperation and communication between different parties ensuring the full utilization of the available resources leading to an improved performance and thus maximizing value and minimizing waste. (Salme….).