Abstract
Modular prefabricated buildings effectively improve the efficiency and quality of building design and construction and represent an important trend in the development of building industrialization. However, there are still many deficiencies in the design and technology of existing systems, especially in terms of the integration of architectural performance defects that cannot respond to occupants’ comfort, flexibility, and energy‐saving requirements throughout the building’s life cycle. This research takes modular prefabricated steel structural systems as its research object and sets the detailed design of an integrated modular envelope system as the core content. First, the researcher chose two types of thermal insulation materials, high insulation panels and aerogel blankets, in order to study 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.
Highlights
If we look at the problem of building industrialization with an eye towards product manufacture, modular design, and the overall construction methodology, most components are prefabricated at the factory and assembled on-site
Modular design embodies the concept of sustainable development and “green” construction
A detailed construction plan designed to avoid this weakness must be based on the basic modules of the building and an integrated building envelope unit; after the two building modules are assembled on-site, these modules will hang on the construction
Summary
Erefore, this research chose two types of thermal insulation materials, high insulation panels (HIPs) and aerogel blankets (ABs), to study the construction details of integrated building envelopes for modular prefabricated buildings. Besides the outer layer of the DSF, this design tested in this research was based on the building components’ standardization with multiple functions in order to realize various approaches to climate responsibility and adaptability To achieve goals such as sight penetration and occlusion, natural lighting, shading, thermal insulation, preheating, ventilation, air ltration, the provision of natural risk barriers, sound insulation, and climate bu ering, ve basic facade treatments were designed: perforated aluminum plates, glass panels, air lter membranes, mosquito net panels, and AB insulation panels. Building’s envelope and to prevent natural creatures near the ground from entering into the building through the hole. e middle of the outer layer, 60 degrees up and down to a height of 1.7 m, was considered the sight zone, with larger holes to ensure users have an adequate view. e southern facade needed to consider shading during the
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