An Analytical Method to Estimate the Total Installed Cost of Steel Frames during Early Design

TitleAn Analytical Method to Estimate the Total Installed Cost of Steel Frames during Early Design
Publication TypeTechnical Report
AuthorsBarg, S., F. Flager, and M. Fischer
NumberTR220
Date Published04/2017
Abstract

This paper presents a method to quickly and accurately estimate steel frame material, fabrication, and erection cost based on early design information. The proposed method utilizes a secure web portal that enables suppliers to provide current unit cost data. The method also includes an automated connection detailing component that provides the quantities required for a detailed steel frame cost estimate based on the unit rates provided by the supplier. We apply the estimation method to a simple moment frame and illustrate the difference between a frame designed for least-weight of steel, and one designed for least cost. The results show that the least-cost frame realized a 14% cost savings over the least-weight frame while adding 7% to the total steel tonnage. These initial results demonstrate the potential of the method to improve early stage design decision-making through better vertical integration of project information in the AEC industry.

Acknowledgements: This research was conducted with Government support under and awarded by DoD, Air Force Office of Scientific Research, National Defense Science and Engineering Graduate (NDSEG) Fellowship, 32 CFR 168a. The authors would also like to thank the Stanford CEE department and CIFE for their continued support.

KeywordsCost Estimation, Design, Simulation, Steel frame design
Year of Publication2017
AttachmentSize
TR220.pdf1.62 MB

Last modified Tue, 9 May, 2017 at 14:15