Seismic performance of mid-to-high rise modular steel construction - A critical review
Abstract
Modular steel construction (MSC) comprises off-site manufactured volumetric modules and on-site assembly, leading to reduced construction periods, improved quality, and reduced waste of resources. This environmentally friendly solution has been extensively used for low-rise buildings as an alternative to traditional on-site construction. The popularity of MSC has now spread to mid-to-high rise applications in seismic regions to meet the increasing urban construction demand, owing to its significant technical advantages. The influence of earthquake becomes critical as the height of the building increases. Hence, this paper presents a state-of-the-art review of the seismic performance of mid-to-high MSC and articulates the key technical issues. The module classification is presented as a brief introduction of MSC, followed by discussion of the structural system. Afterwards, the seismic performance of the lateral force resisting system and recent innovations on the connection system are reviewed in detail, on which the seismic performance of MSC highly depend. The global seismic response analysis methodology, characteristics, failure mode as well as the current design criteria are evaluated, providing a more comprehensive understanding of the seismic performance of MSC. Finally, the recently developed isolation systems for MSC are introduced. As a currently developing area, there is great potential for innovation in mid-to-high rise MSC. Despite progressively increasing…
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