上海大学学报(自然科学版) ›› 2017, Vol. 23 ›› Issue (5): 772-779.doi: 10.12066/j.issn.1007-2861.1717

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新疆喀什高台民居地基变形影响下缺陷协同演化分析

孟丹1, 庞峰2   

  1. 1. 青岛农业大学建筑工程学院, 山东青岛266109; 2. 青岛理工大学艺术学院, 山东青岛266033
  • 收稿日期:2015-11-26 出版日期:2017-10-30 发布日期:2017-10-30
  • 通讯作者: 孟丹(1980—), 男, 博士, 研究方向为建筑物损伤检测、风险评价等. E-mail: md1101@163.com
  • 作者简介:孟丹(1980—), 男, 博士, 研究方向为建筑物损伤检测、风险评价等. E-mail: md1101@163.com
  • 基金资助:

    新疆维吾尔自治区喀什市老城区高台民居保护改造研究资助项目(13YJA760036)

Synergetic evolution analysis of building defects under influence of foundation deformation of high loess slopes in Kashgar, Xinjiang

MENG Dan1, PANG Feng2   

  1. 1. School of Architectural Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China;
    2. Academy of Art, Qingdao Technological University, Qingdao 266033, Shandong, China
  • Received:2015-11-26 Online:2017-10-30 Published:2017-10-30

摘要:

针对地基变形引起的新疆喀什高台民居砌体结构建筑物开裂损伤的工程实际情况, 借助协同学的方法, 选取序参量为建筑物裂纹在坐标系方向上投影矢量和的夹角, 在考虑涨落的情况下利用势函数的特征, 通过将平衡相变系统的熵类比到协同系统来研究其相变特征, 以揭示建筑物受到地基变形影响过程中的相变行为及序参量的演化规律. 分析结果表明, 砌体结构建筑物裂纹演化的过程与建筑物的自由能紧密相关, 根据建筑物自由能变化规律及其相关影响因素, 可以获得建筑物的开裂损伤演化规律, 进而为高台民居地基变形引起的建筑物损伤防护提供理论依据.

关键词: 地基变形, 缺陷, 协同演化, 高台民居

Abstract:

To deal with the cracking damage caused by foundation deformation in masonry buildings of the high loess slopes in Kashgar, Xinjiang, the phase change behavior and evolution of order parameter in the loading of buildings are studied by comparing the entropy of the equilibrium phase transformation system to the cooperative system. Order parameter is represented by the angle between vector sums of the crack projected onto the coordinate system. The results show that evolution of the crack in masonry structure is closely related to the free energy of the building. Study on the variation of free energy in the process of building damage and its related factors can help understand the evolution of building damage, and provide a theoretical basis for preventing damage due to foundation
deformation for high loess slopes in Kashgar.

Key words: defect, deformation of foundation, synergetic evolution, high loess slope