Experimental Study of Resilient Prefabricated Steel Frame With All-Bolted Beam-to-Column Connections

Abstract

To avoid welding on a construction site, this paper proposes a novel resilient prefabricated steel frame with all-bolted beamto-column connections (ABRPSF), which is optimized based on a resilient prefabricated steel frame with mixed welded and bolted beam-to-column connections (WBRPSF) that was proposed and investigated in a previous study. Four-story, 3 × 5 bay prototype structures of the ABRPSF and WBRPSF are designed, and their substructures are used to conduct pseudodynamic tests, whose results are then compared to investigate the seismic behavior of ABRPSFs. The results indicate that the seismic behavior and recentering capacity of a new structural system composed of ABRPSFs are similar to those of WBRPSFs; in addition, the ABRPSF improves the assembly efficiency significantly and can be adopted as a reliable alternative to the WBRPSF.

A comprehensive review and classification of inter-module connections for hot-rolled steel modular building systems

“…However, large distortions may cumber the replacement of these systems. Hence, many researchers have focused on developing self-centring energy-dissipating (SCED) connections which aim to reduce residual drifts by structural-based approaches like post-tensioning [153][154][155], or material-based approaches which make use of elastomeric self-recovery [156][157][158] or shape-memory alloys' (SMA) superelasticity [159][160][161][162][163]. Out of the three, the commonness and reliability of elastomeric materials make them a safe and relatively economic option.…”

High Precision Identification Method of Mass and Stiffness Matrix for Shear-Type Frame Test Model

“…Shear-type steel frame structure is one of the most common engineering structures. In order to make the designed structure safer and more economical, a lot of theoretical research [1,2] and experimental research [3,4] have been carried out. When the stiffness of the beam is much greater than that of the column, this type of structure can be simplified into a lumped mass shear model.…”

“…When the mass matrix is unknown, the direct method to identify the physical parameters of the shear frame structure will face the following problems: (1) The accuracy of the direct method to identify the lumped mass is related to the initial solution, even if there is no modal error, the exact solution of the mass matrix still cannot be obtained. (2) The sparsity of the original matrix cannot be kept in the identified mass matrix and stiffness matrix, that is, the identified mass matrix and stiffness matrix may become full matrices and lose their physical meaning.…”

Experimental, Numerical, and Theoretical Study on Static Behaviour of Novel Steel Dovetail Joint Subjected to Axial Tensile Load

“…However, because of the difficulties and challenges of using welded joint systems, several engineers have proposed a new type of bolted joint system to secure the quick development of steel structures including single-layer grid shells such as bolted joints (Fig. 1), mero joints [8], bolt-ball joints [9], bolted beam-to-column connections [10], double-ribbed reinforced beam-column connections [11], and tremor joints of aluminium (Fig. 2) [12] and a few types of socketed joints such as socket [13][14] and triodetic joints [15].…”