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Keywords = autoclaved lightweight aerated concrete (ALC) panel

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14 pages, 9402 KiB  
Article
Numerical Prediction Method for Vibration Characteristics of Steel-Framed Autoclaved Lightweight Aerated Concrete Floor Structures
by Haruki Mizunuma, Takumi Asakura, Yasuhiko Ishiwatari, Takayuki Shiraishi and Fumiaki Satoh
Buildings 2022, 12(11), 1910; https://doi.org/10.3390/buildings12111910 - 7 Nov 2022
Cited by 1 | Viewed by 2163
Abstract
The prediction of floor vibration is of great importance from the viewpoint of accurate prediction of a room’s sound environment. Despite the advantage of low cost, because the density and elasticity of autoclaved lightweight aerated concrete (ALC) panels are much lower than those [...] Read more.
The prediction of floor vibration is of great importance from the viewpoint of accurate prediction of a room’s sound environment. Despite the advantage of low cost, because the density and elasticity of autoclaved lightweight aerated concrete (ALC) panels are much lower than those of reinforced-concrete panels, ALC floor structures suffer from weak sound insulation and require better sound insulation design. However, there have been not yet been any studies of sound insulation improvement of steel-framed ALC floor structures, and it is novel to clarify how the floor-impact-sound characteristics are affected by the panel size and beam structure. In this paper, a finite element analysis was applied to the vibration simulation of an ALC floor structure on a steel-framed structure. The validity of the proposed method was firstly confirmed by comparison with measurement results. Furthermore, by using the validated simulation method, the effect of the arrangement of ALC panels and their supporting steel-framed structure on the vibration characteristics of the whole structure was investigated. It was found that the vibration performance was improved when the number of beams was increased and adjacent ALC floor panels were bonded to each other. Full article
(This article belongs to the Special Issue Latest Contributions to Building Structural Analysis)
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20 pages, 8799 KiB  
Article
Experimental and Finite Element Analysis of External ALC Panel Steel Frames with New Semi-Rigid Connector
by Kewei Ding, Da Zong, Yunlin Liu, Shulin He and Wanyu Shen
Appl. Sci. 2021, 11(22), 10990; https://doi.org/10.3390/app112210990 - 19 Nov 2021
Cited by 8 | Viewed by 2722
Abstract
In this paper, a new ALC panel connector was proposed. It has a good engineering economy and high fault tolerance. A quasistatic loading experiment was carried out to verify the feasibility of the external ALC panel steel frame under seismic loading. The test [...] Read more.
In this paper, a new ALC panel connector was proposed. It has a good engineering economy and high fault tolerance. A quasistatic loading experiment was carried out to verify the feasibility of the external ALC panel steel frame under seismic loading. The test phenomena, hysteretic curve, skeleton curve, stiffness degradation, and energy dissipation of two sets of full-scale specimens were analyzed and discussed. Moreover, the simulation of pendulous Z-panel connectors with different thicknesses was carried out using ABAQUS software. The comparison reveals that the semi-rigid connection has a full hysteresis curve, good energy dissipation capacity, and a 15% increase in peak load capacity. Finally, similar results for different thicknesses in the use of pendulous Z-panel connectors reveal that using the 6 mm connector may be the most economical solution for engineering. Full article
(This article belongs to the Special Issue Seismic Assessment and Design of Structures)
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