Structure Weight Estimation of Low Rise Steel Frame Buildings by Generative Design

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Wisate Fhagatong
Sopa Visitsak
Siradech Surit

Abstract

This research introduces the Generative Design (GD) into the preliminary design processes of a Rigid steel building in a 3D Rectangular coordinate system. The study process started by determining the design variables: width, length, height, and grid span of the structure. The sets of all possible design parameters are then generated by the combinatorial cross-product algorithm then the estimations of the building weight from all design options are made. Structural weight estimation was made by designing the structure using approximate bending moment according to AISC to obtain the cross-sectional dimensions of steel using the ASD 1989 design standard. The results of the designs were analyzed and compared with ETABS Structural Analysis Program to Compare Estimates of Steel Used. Finally, the design data has been used to analyze and design the building structure by engineering methods in detailed design processes. The results provide the information to management and design teams to compare construction costs during the conceptual design phase. The case study used in this research is a steel building structure with consistent spans, widths, lengths and heights in the scope of general building use at a height of no more than 5 stories. The results of the study suggest that the material estimations from the Generative Design process produces weight are comparable to the design results from the ETAB. The deviation of estimation is between –8.58% to 3.55%.

Article Details

Section
Architecture Research Articles

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