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带有复合和石膏支撑面板的轻钢木框架。

Light Steel-Timber Frame with Composite and Plaster Bracing Panels.

作者信息

Scotta Roberto, Trutalli Davide, Fiorin Laura, Pozza Luca, Marchi Luca, De Stefani Lorenzo

机构信息

Department of Civil, Environmental and Architectural Engineering, University of Padova, Via Marzolo 9, Padova 35131, Italy.

出版信息

Materials (Basel). 2015 Nov 3;8(11):7354-7370. doi: 10.3390/ma8115386.

DOI:10.3390/ma8115386
PMID:28793642
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5458902/
Abstract

The proposed light-frame structure comprises steel columns for vertical loads and an innovative bracing system to efficiently resist seismic actions. This seismic force resisting system consists of a light timber frame braced with an Oriented Strand Board (OSB) sheet and an external technoprene plaster-infilled slab. Steel brackets are used as foundation and floor connections. Experimental cyclic-loading tests were conduced to study the seismic response of two shear-wall specimens. A numerical model was calibrated on experimental results and the dynamic non-linear behavior of a case-study building was assessed. Numerical results were then used to estimate the proper behavior factor value, according to European seismic codes. Obtained results demonstrate that this innovative system is suitable for the use in seismic-prone areas thanks to the high ductility and dissipative capacity achieved by the bracing system. This favorable behavior is mainly due to the fasteners and materials used and to the correct application of the capacity design approach.

摘要

所提议的轻型框架结构包括承受垂直荷载的钢柱和一个用于有效抵抗地震作用的创新支撑系统。这种抗震系统由一个用定向刨花板（OSB）板材支撑的轻型木框架和一个外部氯丁橡胶填充石膏板组成。钢托架用作基础和楼板连接件。进行了试验循环加载试验以研究两个剪力墙试件的地震响应。根据试验结果校准了数值模型，并评估了一个案例建筑的动态非线性行为。然后根据欧洲地震规范，利用数值结果来估计合适的行为系数值。所得结果表明，由于支撑系统实现了高延性和耗能能力，这种创新系统适用于地震多发地区。这种良好性能主要归因于所使用的紧固件和材料以及能力设计方法的正确应用。

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