City Research Online

Abstract

Recently, a novel hybrid inter-module connection was proposed to reduce the permanent damage in the volumetric module by employing a rubber bearing. In this study, two cyclic tests were carried out to study the seismic performance of the hybrid inter-module connection at joint level, while also determining the effect of the beam-column connection detail. The standard FEMA/SAC loading sequence was employed on single-span, meso-scale joint prototypes with bi-axial loading applied to the top post. The results showed that the hybrid IMJs exhibited nonlinear, multi-stage hysteretic responses, governed by the bending resistance of the bolting assembly and the stiffness of the intra-module connection. In terms of the aseismic performance, the joints exhibited remarkably low residual drifts, below the repairability limit of 0.5% up to 2% drift ratio, while displaying relatively high equivalent viscous damping coefficients during the first stages of deformation owing to the effectives of the high-damping rubber bearing. Overall, the cyclic tests demonstrated the feasibility of the proposed connection, which delayed the contribution of the members in the lateral response of the joints, limiting the damage suffered by the volumetric module in the aftermath of an earthquake.

Publication Type:	Conference or Workshop Item (Paper)
Publisher Keywords:	Steel Modular Buildings, Inter-module Joints, Hybrid Connections, Intra-module Connections, High-Damping Rubber, Cyclic Load
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction
Departments:	School of Science & Technology School of Science & Technology > Engineering
SWORD Depositor:	Symplectic Administrator

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