藏式石木结构民居抗震性能数值分析

孟东; 黄辉; 李秋容; 邓传力; 汪源

doi:10.13204/j.gyjzG20110703

藏式石木结构民居抗震性能数值分析

doi: 10.13204/j.gyjzG20110703

孟东¹,
黄辉^1, ,,
李秋容²,
邓传力³,
汪源¹

1. 西南科技大学土木工程与建筑学院, 四川绵阳 621010;
2. 四川建筑职业技术学院, 四川德阳 618000;
3. 西藏大学工学院, 拉萨 850000

基金项目:

国家自然科学基金项目(51908476)。

详细信息

作者简介:
孟东,男,1997年出生,工学硕士。

通讯作者:
黄辉,男,1987年出生,工学博士,副教授,huang871005@126.com。

计量
- 文章访问数: 79
- HTML全文浏览量: 7
- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2020-11-07
- 网络出版日期: 2022-07-23
- 刊出日期: 2022-07-23

Numerical Analysis of Seismic Performance of Tibetan Stone-Wood Dwellings

1. School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China;
2. Sichuan Vocational and Technical College of Architecture, Deyang 618000, China;
3. College of Engineering, Tibet University, Lhasa 850000, China

摘要

摘要: 西藏地区受地理条件的限制多采用传统的石木房屋结构体系,且没有进行抗震设计,在地震灾害下受损严重。为了解藏式石木结构民居在地震作用下的薄弱环节,选择拉萨郊区的一典型石木结构民居为研究对象,通过ANSYS建模分析其在3组多遇地震作用下的位移和加速度响应,以及在El Centro波罕遇地震作用下的加速度响应、位移响应和应力云图,计算得到层间位移角以及加速度放大系数;此外,结合结构剪应力的分布情况,对比发现该结构在地震荷载作用下的主要薄弱部位为女儿墙、二层柱节点、门窗洞口附近墙体以及墙角处;最后,根据分析结果给出了加固和改良该类结构的建议。
- 藏式民居 /
- 石木结构 /
- 数值模拟 /
- 地震响应 /
- 薄弱部位 /
- 改良加固建议
Abstract: Due to geographical restrictions, Tibetan dwellings mostly adopts traditional stone-wood structure system, which has no seismic design and is easy to be severely damaged by earthquake disasters. In order to understand the weak links of Tibetan-style stone-wood structure dwellings under earthquake action, a typical stone-wood structure dwelling in the suburbs of Lhasa was selected as the research object, and its displacement and acceleration response under three groups of frequent earthquakes were analyzed through ANSYS modeling. As well as the acceleration response, displacement response and stress cloud diagram under the action of the El-Centro rare earthquake wave, the inter-storey drift angle and acceleration magnification factor were calculated; in addition, combined with the distribution of structural shear stress, it was found that under seismic action, the main weak points were the parapet wall, the second-story column joints, the walls near the door and window openings, and the corners; finally, some suggestions for strengthening and improving this type of structure were given based on the analysis results.
- Tibetan dwellings /
- stone-wood structure /
- numerical simulation /
- seismic response /
- weak parts /
- suggestions for improvement and reinforcement

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参考文献(16)

[1]	谢英情,非明伦,李西,等.2008年西藏当雄6.6级地震烈度与震害特征[J].地震研究,2008,31(增刊2):575-584.
[2]	安晓文,李丹.鲁甸6.5级地震建筑典型震害现象分析[J].建筑结构,2020,50(7):28-36.
[3]	江道镨.福建省镇(乡)村石砌体结构房屋抗震性能分析及加固处理研究[J].工程抗震与加固改造,2020,42(3):157-163 ,14.
[4]	赵作周,许松健,陈俞,等.北京农村单层四开间砖木住宅结构抗震加固研究[J].建筑结构学报,2018,39(12):139-146.
[5]	李英民,韩军,刘立平.ANSYS在砌体结构非线性有限元分析中的应用研究[J].重庆建筑大学学报,2006(5):90-96,105.
[6]	娄亚非.西藏典型单层砌体民居抗震性能研究[D].哈尔滨:哈尔滨工程大学,2015.
[7]	李秋容.藏式石木结构民居的抗震性能及设防对策[D].绵阳:西南科技大学,2015.
[8]	常鹏,吴楠楠,王钊,等.藏式山地结构有限元模型修正及动力可靠度分析[J].土木工程学报,2020,53(6):13-20 ,41.
[9]	DHANASEKAR M, PAGE A W, KLEEMAN P W. The failure of brick masonry under biaxial stresses[J]. Proceedings of the Institution of Civil Engineers,1985,79(2):295-313.
[10]	刘桂秋.砌体结构基本受力性能的研究[D].长沙:湖南大学,2005.
[11]	中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB 50011-2010[S].北京:中国建筑工业出版社, 2010.
[12]	克拉夫R,彭津J.结构动力学[M].2版.王光远,译.北京:高等教育出版社,2006:184-185.
[13]	姚新强,陈宇坤,高武平,等.印度锡金邦6.8级地震中国西藏地区民房震害分析[J].震灾防御技术,2012,7(1):77-84.
[14]	苏启旺,许浒,吴昊,等.砖砌体结构层间位移角的探讨[J].土木工程学报,2013,46(增刊1):111-116.
[15]	周炳章.我国砌体结构抗震的经验与展望[J].建筑结构,2011,41(9):151-158.
[16]	BORRI A, CASTORI G, CORRADI M. Shear behavior of masonry panels strengthened by high strength steel cords[J]. Construction and Building Materials,2011,25(2):494-503.