Modular integrated construction (MIC) has gained more popular attentions from both researchers and engineers due to its advantages of construction efficiency and environmental friendliness. The paper conducted a comprehensive review study on different structural systems for MIC including fully modular structure (FMS), mixed modular structure (MMS) and in-fill modular structure (IFMS), the architectural, structural and constructional characteristics are discussed in detail for each modular structure with typical applications. Afterwards, one innovative IFMS based on sparse-component frames (IFMS-SCF) was proposed and comparative analyses were provided between IFMS-SCF and previous modular structures. Results reveal that different modular structures vary greatly in their principal lateral resisting structures, applicable height, construction efficiency and architectural flexibility. IFMS-SCF can be one promising structural system used for high-rise MIC with enhanced construction efficiency and great potential in the brand-new residence style.
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