Abstract
In order to evaluate the seismic performance of new-type composite exterior wallboard, a total of six exterior and interior wallboards were incorporated in the experiment of seismic performance. Seismic performance such as the stress process, damage mode, hysteresis and skeleton curve, load-carrying and ductility coefficient, damping and energy dissipation, stiffness degradation as well as material strain of the exterior wallboards were analyzed with emphasis and compared with interior wallboards. Results of the experiment and analysis showed that both interior and exterior wallboards exhibited outstanding seismic performance. Due to the existence of insulation layer and externally bonded single gypsum board, the capacity of elastoplastic deformation and seismic energy dissipation of the exterior wallboards was improved and each seismic performance indicator of the exterior wallboards outperformed the interior wallboards.
Highlights
IntroductionMaterials 2015, 8 hot topics in countries all around the world [1]
Within the background of global warming, decline in the quality of living environments and significant reduction of energy resources, energy-saving and protection of environments have becomeMaterials 2015, 8 hot topics in countries all around the world [1]
The ductility coefficient of composite exterior wallboard (CEW) was increased by 7.65% compared with composite interior wallboard (CIW), suggesting that the ductility of CEW was better than CIW and that the capacity of elastoplastic deformation, energy dissipation and seismic performance of CEW was better than CIW
Summary
Materials 2015, 8 hot topics in countries all around the world [1]. According to the statistics of energy consumption in each country, the energy consumed in building and construction takes a large proportion of the total energy consumption. Walls contribute significantly to the effect of insulation of the building and are the key to resolving the issue of energy-saving of buildings to scientifically improve the enclosing structure and heating facilities of the building. Comparing different kinds of wall insulation approaches (external insulation of external wall, internal insulation of external and external wall sandwich insulation etc.), the advantages of external insulation of external walls are prominent, and they have been promoted and applied in most countries as an approach towards energy saving of buildings. The development of a new type of wallboard and insulation system is imminent
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