钢丝网砂浆加固土坯墙体抗震性能影响因素分析
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摘要
为研究钢丝网水泥砂浆加固土坯墙体抗震性能,考虑了墙体厚度、竖向荷载和开孔尺寸等多种因素复合作用下对加固墙体抗侧承载力与变形能力的影响程度。采用数理统计理论中的正交分析法并结合砌体二次均质化理论,对加固墙体进行弹塑性数值计算并分析其结果。研究表明:对于未开孔的加固墙体,竖向荷载和墙体厚度对墙体抗侧承载力和变形能力的贡献主次顺序为:竖向荷载>墙体厚度;对于开孔的加固墙体,各因素对墙体抗侧承载力和变形能力的贡献主次顺序为:竖向荷载>开孔尺寸>墙体厚度。由此表明竖向荷载是影响未开孔与开孔加固墙体的主导因素,在对土坯房屋进行加固改造设计时应合理设计屋(楼)面荷载。
To study the seismic performance of reinforced adobe wall with ferrocement mortar,this paper considers the impact of the compound action of thickness of walls,the vertical loads and size of holes to the lateral capacity and deformability of reinforced wall. And it applies elastoplastic numerical calculation in reinforced wall,and analyzes the results by adopting the way of orthogonal analysis of mathematical statistics theory and the theory of masonry secondaryRVE. This study shows that for reinforced wall without holes,vertical loads makes greater contribution to the lateral capacity and deformability of reinforced wall than the thickness of walls; but for reinforced wall with holes,it is the vertical loads and is not the thickness of walls. The conclusion makes the greatest contribution to that of reinforced wall;what's more,size of holes even contributes much more than that of the thickness of wall. It demonstrates that vertical load is the dominant factor of the reinforced walls,it should reasonably design roof( floor) loads for rebuilding and seismic reinforcement of abode buildings.
引文
[1]吴锋.土坯房屋基本力学和抗震性能的试验研究[D].大连:大连理工大学,2013.
    [2]王晓华.生土建筑的生命机制[M].北京:中国建筑工业出版社,2010.
    [3]Maheri M R,Naeim F,Mehrain M.Performance of adobe residential buildings in the 2003 Bam,Iran,earthquake[J].Earthquake Spectra,2005,21(S1):337-344.
    [4]Ramazi H,Jigheh H S.The Bam(Iran)Earthquake of December26,2003:From an engineering and seismological point of view[J].Journal of Asian Earth Sciences,2006,27(5):576-584.
    [5]Taucer F,Alarcon J E,So E.2007 August 15 magnitude 7.9earthquake near the coast of Central Peru:analysis and field mission report[J].Bulletin of Earthquake Engineering,2009,7(1):1-70.
    [6]王亚勇,葛学礼,袁金西.新疆巴楚M6.8地震房屋震害及经验总结[J].地震工程与工程振动,2003,23(2):172-175.
    [7]常卫华,王建卫,徐福泉,等.卧砌土坯墙体加固抗震性能试验研究[J].建筑结构,2012,42(9):126-130.
    [8]Figueiredo A,Varum H,Costa A,et al.Seismic retrofitting solution of an adobe masonry wall[J].Materials and Structures,2013,46(1-2):203-219.
    [9]周铁钢,杨华,胡昕.石膏-土坯墙民居抗震性能试验研究[J].世界地震工程,2009,25(3):130-134.
    [10]姜忻良,王亭,李茂鋆.加固的历史风貌建筑墙体试验及结构抗震分析[J].工程抗震与加固改造,2012,34(2):22-27.
    [11]陈汉清,阿肯江·托呼提.基于ANSYS的素土坯墙体抗震性能影响因素分析[J].实验室研究与探索,2009,28(10):23-25.
    [12]Gambarotta L,Lagomarsino S.Damage models for the seismic response of brick masonry shear walls.Part I:the mortar joint model and its applications[J].Earthquake Engineering&Structural Dynamics,1997,26(4):423-439.
    [13]江见鲸,陆新征.混凝土结构有限元分析[M].北京:清华大学出版社,2013:44-63.
    [14]贾冠华,袁中夏.采用“隐形构造柱”砌体墙抗震性能非线性有限元分析[J].世界地震工程,2013,29(4):80-87.
    [15]何本贵,高谦,刘芳.公路路堑边坡稳定性影响因素正交分析与数值模拟[J].岩土工程学报,2005,27(6):716-719.
    [16]赵明华,刘建华,邬龙刚.岩质边坡上基桩数值模拟与正交试验设计[J].沈阳建筑大学学报(自然科学版),2007,23(2):207-211.

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