Volume 13, Issue 3 (7-2023)                   IJOCE 2023, 13(3): 353-365 | Back to browse issues page


XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Kaveh A, Rezazadeh Ardebili S. OPTIMAL DESIGN OF MIXED STRUCTURES UNDER COUPLED AND DECOUPLED TIME-HISTORY ANALYSES. IJOCE 2023; 13 (3) :353-365
URL: http://ijoce.iust.ac.ir/article-1-560-en.html
1- School of Civil Engineering, Iran University of Science and Technology, Tehran-16, Iran
Abstract:   (6893 Views)
This paper deals with the optimum design of the mixed structures that consists of two parts, a lower part made of concrete and an upper part made of steel. Current codes and available commercial software packages do not provide analytical solutions for such structural systems, especially if a decoupled analysis is performed where the lower part is excited by ground motion and its response of total accelerations is used for the upper part. Due to irregular damping ratios, mass and stiffness, dynamic response of each part of a mixed structure differs significantly. The present paper aims at comparing of the optimum design of these structures under the coupled and decoupled models. Toward that goal, the coupled and decoupled time history analyses are performed and the optimum design of the two methods are compared. The results of the two approach show that the cost of the decoupled analysis is higher than the cost of the coupled analysis and the design of the decoupled method may be uneconomical, because the interaction between the two upper and lower parts is neglected.
 
Full-Text [PDF 487 kb]   (2861 Downloads)    
Type of Study: Research | Subject: Optimal design
Received: 2023/04/21 | Accepted: 2023/07/19 | Published: 2023/07/19

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Iran University of Science & Technology

Designed & Developed by : Yektaweb