City Research Online

Experimental and analytical investigations on compression behaviors of rotary-connected sway column-supported steel modular interior frames

Khan, K., Chen, Z., Liu, J. & Tsavdaridis, K. D. ORCID: 0000-0001-8349-3979 (2023). Experimental and analytical investigations on compression behaviors of rotary-connected sway column-supported steel modular interior frames. Journal of Building Engineering, 78, article number 107692. doi: 10.1016/j.jobe.2023.107692


This study examines the compressive behaviors of sway column-supported steel modular interior frames (SCSMIFs) using rotary-type vertical and horizontal inter-modular connections (IMCs). The compression behavior of SCSMIFs was investigated through experimental, numerical parametric, and analytical techniques. Findings indicate that the relative rigidity of beam-to-column connections primarily influences lateral translation. Adjacent upper columns displayed symmetrically inward or outward elastic and plastic S-shaped local buckling without IMC failures. A finite element model (FEM) was developed and validated, achieving a 1% average prediction error for compressive resistance. The examination of 87 SCSMIFs with a validated FEM revealed the effects of different parameters on compressive resistance, initial stiffness, and pre-and post-ultimate ductility. Based on member stiffnesses and rotary-type IMCs in semi-rigid and pinned conditions, theoretical models predicted sub-assembled CMSIF buckling loads. The average theory-to-FEM results for pinned and semi-rigid IMCs were 0.70 and 0.95, indicating that incorporating the stiffness of rotary-type IMCs resulted in more accurate and less scattered buckling load predictions. Considering their unique characteristics, the study's findings contribute to ensuring the structural integrity and design of SCSMIFs with IMCs under compressive loads.

Publication Type: Article
Additional Information: © 2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Publisher Keywords: Compression behaviors, Inter-modular connections, Column-supported frames, Sub-assembled testing, Finite element analysis, Buckling load models
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TH Building construction
Departments: School of Science & Technology > Engineering
SWORD Depositor:
[thumbnail of Manuscript-Interior frame-Revised-Clear version.pdf] Text - Accepted Version
This document is not freely accessible until 2 September 2024 due to copyright restrictions.
Available under License Creative Commons Attribution Non-commercial No Derivatives.

To request a copy, please use the button below.

Request a copy


Add to AnyAdd to TwitterAdd to FacebookAdd to LinkedinAdd to PinterestAdd to Email


Downloads per month over past year

View more statistics

Actions (login required)

Admin Login Admin Login