地坑窑尺寸设计及其对力学性能的影响
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摘要
地坑窑作为我国一种独特的民居建筑形式,其结构力学性能一直少有学者进行深入的研究与探讨。以实测数据作为分析的依据,探讨地坑窑建造时的重要设计尺寸。依据实地调研结果构造窑拱曲线形状参数,结合有限元仿真计算,研究主窑拱顶曲线形状与覆土层厚度改变对窑拱结构受力的影响,并进一步验证建造者实践中所采用的设计尺寸在力学上的实用性与合理性。地坑窑结构力学性能的研究不仅为在役窑居的加固与维修提供理论依据,而且为其可靠性的计算提供研究基础。
Sunken cave dwelling is a kind of unique residential architecture in our country,and its mechanical properties have been few in-depth study and discussion.In this paper,the data measured in practice will be used for to explore the important designed dimensions of the sunken cave dwelling.With the result of field research and finite element simulation,influences on the stress of cave-arch structure by changing the shape of arch curve and layer thickness of the main cave are studied.In further the practicability and rationality of designed dimensions in practice are explained.By the study on mechanical properties for sunken cave dwelling,not only a theoretical basis for the reinforcement and the maintenance of existing cave dwelling is built but the base of research on reliability computing is provided.
Sunken cave dwelling is a kind of unique residential architecture in our country,and its mechanical properties have been few in-depth study and discussion.In this paper,the data measured in practice will be used for to explore the important designed dimensions of the sunken cave dwelling.With the result of field research and finite element simulation,influences on the stress of cave-arch structure by changing the shape of arch curve and layer thickness of the main cave are studied.In further the practicability and rationality of designed dimensions in practice are explained.By the study on mechanical properties for sunken cave dwelling,not only a theoretical basis for the reinforcement and the maintenance of existing cave dwelling is built but the base of research on reliability computing is provided.
引文
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[2]刘小军,王铁行,韩永强,等.黄土窑洞病害调查及分析[J].地下空间与工程学报,2007,3(6):996～999.
[3]童丽萍,韩翠萍.传统生土窑洞的土拱结构体系[J].施工技术,2008,37(6):113～118.
[4]童丽萍,韩翠萍.黄土材料和黄土窑洞构造[J].施工技术,2008,37(2):107～108.
[5]童丽萍,张琰鑫.农村夯土类建筑地震反应分析[J].世界地震工程,2009,25(2):36～40.
[6]高峰,任侠.黄土窑洞地震反应分析[J].兰州铁道学院学报(自然科学版),2001,20(3):12～17.
[7]任侠.黄土窑洞弹塑性有限元分析[J].兰州铁道学院学报,1993,12(4):1～7.
[8]谢星,赵法锁,王艳婷,等.结构性Q2、Q3黄土的力学特性对比研究[J].西安科技大学学报,2006,26(4):451～455.
[9]姬栋宇.窑腿宽度对生土窑洞结构体系的影响分析[J].水科学与工程技术,2010,(1):58～59.
[10]曹源,童丽萍.地坑窑居中“炕”的功能和构造研究[J].建筑科学,2009,25(12):12～15.
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