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Mathematical Problems in Engineering
Volume 2014 (2014), Article ID 916951, 14 pages
Research Article

Mathematical Model of Hybrid Precast Gravity Frames for Smart Construction and Engineering

1Department of Architectural Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Republic of Korea
2Australasian Joint Research Centre for Building Information Modelling, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
3Department of Housing and Interior Design, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701, Republic of Korea

Received 28 February 2014; Revised 4 April 2014; Accepted 1 May 2014; Published 27 August 2014

Academic Editor: Changzhi Wu

Copyright © 2014 Seon-Chee Park et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The structural stability, constructability, economic feasibility, environmental-friendliness, and energy efficiency of hybrid composite frame systems have been demonstrated by practical application and research. A hybrid composite frame system combines the economy of precast concrete structures with the constructability of steel frame structures, including erection speed. Novel composite frames will ultimately maximize the efficiency of structural design and facilitate construction. This paper presents hybrid precast frames, which are precast composite frames based on a simple connection between precast concrete columns and beams. The hybrid precast frames designed to resist gravity loading consist of PC columns, PC beams, and steel inserted in the precast members. Steel sections located between the precast columns were simply connected to steel inserted at each end of the precast beams. Dynamic analysis of a 15-story building designed with the proposed composite frame was performed to determine the dynamic characteristics of a building constructed of hybrid frames, including frequencies and mode shapes.