scholarly journals AN ANALYTICAL COST MODEL FOR INVESTMENT CASTING

2020 ◽  
Vol 1 ◽  
pp. 987-996
Author(s):  
M. Mandolini ◽  
F. Campi ◽  
C. Favi ◽  
P. Cicconi ◽  
M. Germani
Keyword(s):  
Investment Casting ◽  
Cost Estimation ◽  
Cost Model ◽  
Complex Task ◽  
Cluster Assembly ◽  
Design Phase ◽  
Production Lines ◽  
The Cost ◽  
Estimation Models ◽  
Cost Estimation Models

AbstractAnalytical cost estimation of investment casted products during design phase is a complex task since the quantity of parameters to be evaluated. So far, there is a short literature on such cost estimation models. This paper attempts to improve the cost model presented by Boothroyd and Dewhurst. Improvements (mainly focused on cluster assembly and investment, sintering and melting phases) were defined and verified in cooperation with two foundries. Tested on eight components, deviation between estimated and actual costs is around 14% for manual production lines and 6% for automatic ones.

An Assessment of the Accuracy of Cost Estimation Using Building Information Modeling in Design Process

2013 ◽  
Vol 291-294 ◽  
pp. 2822-2825 ◽  
Author(s):  
Gwang Hee Kim ◽  
Hyun Young Park ◽  
Jae Min Shin
Keyword(s):  
Design Process ◽  
Cost Estimation ◽  
Building Information Modeling ◽  
Information Modeling ◽  
Design Phase ◽  
Cost Estimating ◽  
Construction Market ◽  
Building Information ◽  
Causes Of Errors ◽  
The Cost

The completion of the design drawing has not been credited in the construction market in Korea, and the modeling information of the design phase cannot be effectively used in an estimation process. Therefore, the objective of this study is to assess the cost estimating accuracy of a BIM tool in the design process to verify its applicability. Modeling was done for a building in an actual project to evaluate the applicability, from which the causes of errors of quantity take-off were derived.

scholarly journals Estimasi Biaya Konseptual Pada Jembatan Beton Bertulang Dengan Metode Indek Biaya

2017 ◽  
Vol 13 (2) ◽  
pp. 105
Author(s):  
Bagyo Mulyono ◽  
Paulus Setyo Nugroho
Keyword(s):  
Cost Estimation ◽  
Early Stage ◽  
Cost Model ◽  
Construction Project ◽  
Public Works ◽  
Cost Index ◽  
Reinforced Concrete Bridge ◽  
Construction Project Cost ◽  
The Cost ◽  
Available Information

<p class="DRAbstrak">Cost estimation is the art of estimating the amount of cost required for an activity based on available information. The conceptual cost estimate is an early stage in planning a construction project. This estimate provides the cost that must be budgeted for a construction project. Cost conceptual estimates have low accuracy because the time of calculation and available information is limited. This study aims to obtain a conceptual model of the conceptual cost of short-spaced bridges. The method used is the cost index. The cost index is a figure indicating the cost per m2 of bridges at a given time. The required data are contract documents and drawings design that are built in 2012 - 2015 in Banyumas residency area. Span of bridge 4 - 38.8 meters and width of bridge 2 - 7 meters with caisson  foundation. The data were obtained from Dinas Bina Marga and Public Works Agency. The results showed that the conceptual cost model of reinforced concrete bridge with caisson foundation was BJiL = (100.540.56t2-404.528.636,58t + 406.914.286.088,58) x P x W, with t = year, P = span bridge, and W = bridge width. The error value of validation of this model is 2.31%.</p>

Sign in / Sign up

Export Citation Format

Share Document