川西少数民族改性黄泥单轴压缩本构关系研究

IF 3.6 4区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Xiao Hu, Li Xie, Zhenlin Chen, Pengcheng Lei, Hao Chen, Tao Tan
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引用次数: 0

摘要

在尼泊尔、印度和伊朗等国,全球仍有超过20亿人在使用原生土建筑。在中国,居住在土制建筑中的人口比例上升到36%,其中一些居住在四川西部。中国四川西部的少数民族民居使用当地的石头和黄泥作为建筑材料,已经使用了数千年。由于黄泥是一种脆性材料,力学性能差,而且该地区容易发生地震,因此墙在地震作用下极易受到破坏。为改善黄泥的力学性能,对川西桃坪羌村黄泥进行了研究和改性。对改良后的试件进行了单轴压缩试验,分析并优化了原土基材料现有的本体发生方程。最后,建立了川西地区黄粘土和改性黄粘土的本构模型,通过参数的变化可以适用于不同改性材料。结果表明,加入改性材料后,黄粘土的抗压强度有所提高。优化后的本构模型能较好地拟合试验曲线,可为川西少数民族住宅结构或类似结构体系的理论计算和抗震减灾提供依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study on the uniaxial compression constitutive relationship of modified yellow mud from minority dwelling in western Sichuan, China
Abstract More than 2 billion people around the world still use raw earth architecture, in countries like Nepal, India, and Iran. In China, the proportion of people living in earthen structures rose to 36%, some of them in western Sichuan. Minority dwellings in western Sichuan, China, use local stone and yellow mud as building materials and have been used for thousands of years. Because yellow mud is a brittle material with poor mechanical properties, and because the region is prone to earthquakes, the walls are highly susceptible to damage under seismic action. To improve the mechanical properties of yellow mud, the yellow mud of Taoping Qiang Village in western Sichuan was studied and modified. Uniaxial compressive tests were conducted on the modified specimens, and the existing ontogenetic equations of raw soil-based materials were analyzed and optimized. Finally, we developed the constitutive models for yellow clay and modified yellow clay in the western Sichuan area, which can be used for different kinds of modified materials through the variation of parameters. The results show that the compressive strength of yellow clay is improved by adding the modified materials. The optimized constitutive model can better fit the test curves, which can provide a basis for theoretical calculations and seismic mitigation of minority residential structures in western Sichuan or similar structural systems.
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来源期刊
Reviews on Advanced Materials Science
Reviews on Advanced Materials Science 工程技术-材料科学:综合
CiteScore
5.10
自引率
11.10%
发文量
43
审稿时长
3.5 months
期刊介绍: Reviews on Advanced Materials Science is a fully peer-reviewed, open access, electronic journal that publishes significant, original and relevant works in the area of theoretical and experimental studies of advanced materials. The journal provides the readers with free, instant, and permanent access to all content worldwide; and the authors with extensive promotion of published articles, long-time preservation, language-correction services, no space constraints and immediate publication. Reviews on Advanced Materials Science is listed inter alia by Clarivate Analytics (formerly Thomson Reuters) - Current Contents/Physical, Chemical, and Earth Sciences (CC/PC&ES), JCR and SCIE. Our standard policy requires each paper to be reviewed by at least two Referees and the peer-review process is single-blind.
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