Shaking table tests on seismic retrofitting of rammed-earth structures

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• 作者：Yaan Wang ; Ming Wang ; Kai Liu ; Wen Pan ; Xiaodong Yang
• 关键词：Rammed ; earth ; Seismic retrofitting ; Shake table test ; Dynamic response
• 刊名：Bulletin of Earthquake Engineering
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：15
• 期：3
• 页码：1037-1055
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Geotechnical Engineering & Applied Earth Sciences; Environmental Engineering/Biotechnology; Civil Engineering; Geophysics/Geodesy; Hydrogeology; Structural Geology;
• 出版者：Springer Netherlands
• ISSN：1573-1456
• 卷排序：15

文摘

Rammed-earth dwellings are widely used in rural areas worldwide; with poor mechanical properties and weak seismic resistance, these structures are vulnerable to earthquakes. This study presents a method for reinforcing existing rammed-earth buildings by strengthening the walls with externally bonded fibers. Shaking table tests were conducted to study the seismic performance of two rammed-earth model structures—with and without reinforcement. We observed the crack patterns, failure modes, changes in dynamic properties, in-plane deformation, wall response, and roof–wall interaction in the models. The results confirm that the seismic resistance of rammed-earth structures reinforced using the proposed method was substantially improved.