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Design and climate response performance evaluation of integral envelope of modular prefabricated building

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Document pages: 14 pages

Abstract: Modular prefabricated buildings effectively improve the efficiency and quality of architectural design and construction, which is an important trend of the development of architectural industrialization. However, there are still many defects in the design and technology of the existing system, especially in the integration of building performance defects. These defects can not meet the comfort, flexibility and energy-saving requirements of residents in the whole building life cycle. This study takes the modular prefabricated steel structure system as the research object, and takes the detailed design of the overall modular envelope structure system as the core content. First of all, the researchers chose two kinds of thermal insulation materials, high heat insulation board and aerogel the construction details of integrated building envelopes for modular prefabricated buildings. Focusing on the weakest heat point, the thermal bridge at the modular connection point, this work used construction design and research to build an experimental building and full-scale model; the goal was to explore and verify the feasibility of the climate-responsive construction technique called “reverse install.” Second, as a response to climate change, building facades were dynamically adjusted by employing different modular building envelope units such as sunshades, preheaters, ventilation, air filtration, pest control, and other functional requirements in order to improve the building’s climate adaptability. Finally, based on the above structural design and research, this study verified the actual measurements and simulation, as well as the sustainability performance of the structure during the operational phase, and provided feedback on the design. The results highlight the environmental performance of each construction detail and optimized possibilities for an integrated envelope design for modular prefabricated buildings during both the design and renovation phases.

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