约束石砌体承重结构的抗震可靠性分析
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摘要
在我国产石地区,石砌体结构是一种传统的结构形式,具有独有的特色和极佳的特性,倍受人们的青睐。由于材料特性和施工原因,致使结构整体性差、抗震性能弱,震害严重。提出约束石砌墙体承重结构概念,分析其抗震性能,建立抗震抗剪强度验算公式,提出约束石砌体结构抗震能力的模糊安全准则及其可靠性验算方法。经实例应用,方法简易可行,公式概念清晰,符合现行设计理论;经约束后的石砌体结构抗震可靠度有较大提高,抗震性能显著改善;扩展了石结构的应用范围,可供其它砌体结构的抗震设计和加固等参考。
In regions with abundant stones, stone structure is usually used. It is favorable with its unique features and good characteristics. However, its earthquake resistant capacity is low due to its poor structural integrity, with severe earthquake damage because of its material characteristics and construction methods. The concept of restrained stone masonry bearing structure is proposed. The earthquake-resistant behavior of the structure is analyzed, and formulas for earthquake resistant strength and shear strength are presented. Fuzzy safety criterion of earthquake-resistant capacity and the reliability calculation method are also proposed. It is demonstrated with examples that the methods are simple, and the formulas are distinct and accord with the design theory in operation. The earthquake-resistant capacity can be increased considerably. The methods can be used as references for the earthquake resistant design of other masonry structures.
In regions with abundant stones, stone structure is usually used. It is favorable with its unique features and good characteristics. However, its earthquake resistant capacity is low due to its poor structural integrity, with severe earthquake damage because of its material characteristics and construction methods. The concept of restrained stone masonry bearing structure is proposed. The earthquake-resistant behavior of the structure is analyzed, and formulas for earthquake resistant strength and shear strength are presented. Fuzzy safety criterion of earthquake-resistant capacity and the reliability calculation method are also proposed. It is demonstrated with examples that the methods are simple, and the formulas are distinct and accord with the design theory in operation. The earthquake-resistant capacity can be increased considerably. The methods can be used as references for the earthquake resistant design of other masonry structures.
引文
[1]施养杭.多层料石结构抗震设防审查[J].福建建筑,1996,(2):29~31.Shi Yanghang.Earthquake resistance inspection of multi-story stone structures[J].Fujian Architecture&Construction,1996,(2):29~31.(in Chinese)
[2]余建星,施养杭.石砌体结构抗震抗剪强度理论的应用[J].地震工程与工程振动,2001,(1):63~67.Yu Jianxing,Shi Yanghang.Study on application of earthquake-resistant and shear-resistant strength theory of stone structure[J].Earthquake Engineering and Engineering Vibration,2001,(1):63~67.(in Chinese)
[3]国家标准.砌体结构设计规范(GB5003-2001)[S].北京.National Standard of China.Design Specifications for Masonry Structures(GB5003-2001)[S].Beijing.(in Chinese)
[4]国家标准.建筑抗震设计规范(GB50011-2001)[S].北京.National Standard of China.Specifications for Earthquake Resistant Design of Building Structures(GB50011-2001)[S].Beijing.(in Chinese)
[5]国家标准.建筑结构可靠度设计统一标准(GB50068-2001)[S].北京.National Standard of China.Unified Standard for Reliability Design of Building Structures(GB50068-2001)[S].Beijing.(in Chinese)
[6]林建华,施养杭.石砌体结构抗震性能及其模糊可靠度的研究[J].土木工程学报,1998,31(6):40~48.Lin Jianhua,Shi Yanghang.Study of the seismic behaviorand fuzzy earthquake-resistant reliability of stone masonry structures[J].China Civil Engineering Journal,1998,31(6):40~48.(in Chinese)
[7]施养杭,施景勋.料石砌体抗震抗剪强度[J].工程力学,1998,(增刊):598~601.Shi Yanghang,Shi Jingxun.Earthquake-resistant and shear strengths of stone masonry structures[J].Engineering Mechanics,1998,(supplement):598~601.(in Chinese)
[8]杨勇新,陈满圈.砌体结构中裂缝损伤的模糊综合评价[J].港工技术,1998,(3):29~32.Yang Yongxin,Chen Manquan.Fuzzy comprehensive judge of cracking damage on masonry structure[J].Port Engineering Technology,1998,(3):29~32.(in Chinese)
[9]苏小卒.砌体结构设计[M].上海:同济大学出版社,2002.5~9.Su Xiaozu.Design of masonry structures[M].Shanghai:Tongji University Press,2002.5~9.(in Chinese)
[10]施养杭,余建星.石砌体结构理论研究与应用现状[J].工程力学,1999,(增刊):291~296.Shi Yanghang,Yu Jianxing.Status of theoretical study and application of stone masonry structures[J].Engineering Mechanics,1999,(supplement):291~296.(in Chinese)
[11]吕西林.建筑结构抗震设计理论与实例[M].上海:同济大学出版社,2002,185~208.Lu Xilin.Design theory and examples for earthquake-resistant design of building structures[M].Shanghai:Tongji University Press,2002.185~208.(in Chinese)
[12]施养杭,罗刚.引入结构功能概念的抗震设计方法[J].福建建筑,2002,(1):30~31.Shi Yanghang,Luo Gang.An earthquake-resistant design method with the concept of structure performance[J].Fujian Architecture&Construction,2002,(1):30~31.(in Chinese)
[13]欧进萍,牛获涛.地震地面运动随机过程模型参数及其结构效应[J].哈尔滨建筑工程学院学报,1990,23(2):131~139.Ou Jinping,Niu Ditao.Parameters in the random process models of earthquake ground motion and their effects on the response of structures[J].Journal of Harbin University of Civil Engineering and Architecture,1990,23(2):131~139.(in Chinese)
[14]苏经宇,周锡元.场地类别模糊综合评定实用方法[J].岩土工程学报,1990,12(3):67~75.Su Jingyu,Zhou Xiyuan.Practical methods of fuzzy synthetic evaluation for site classification[J].Chinese Journal of Geotechnical Engineering,1990,12(3):67~75.(in Chinese)
[15]刘立新.砌体结构[M].长沙:武汉工业大学出版社,2001.4~11.Liu Lixin.Masonry structures[M].Changsha:Wuhan University of Technology Press,2001.4~11.(in Chinese)
[2]余建星,施养杭.石砌体结构抗震抗剪强度理论的应用[J].地震工程与工程振动,2001,(1):63~67.Yu Jianxing,Shi Yanghang.Study on application of earthquake-resistant and shear-resistant strength theory of stone structure[J].Earthquake Engineering and Engineering Vibration,2001,(1):63~67.(in Chinese)
[3]国家标准.砌体结构设计规范(GB5003-2001)[S].北京.National Standard of China.Design Specifications for Masonry Structures(GB5003-2001)[S].Beijing.(in Chinese)
[4]国家标准.建筑抗震设计规范(GB50011-2001)[S].北京.National Standard of China.Specifications for Earthquake Resistant Design of Building Structures(GB50011-2001)[S].Beijing.(in Chinese)
[5]国家标准.建筑结构可靠度设计统一标准(GB50068-2001)[S].北京.National Standard of China.Unified Standard for Reliability Design of Building Structures(GB50068-2001)[S].Beijing.(in Chinese)
[6]林建华,施养杭.石砌体结构抗震性能及其模糊可靠度的研究[J].土木工程学报,1998,31(6):40~48.Lin Jianhua,Shi Yanghang.Study of the seismic behaviorand fuzzy earthquake-resistant reliability of stone masonry structures[J].China Civil Engineering Journal,1998,31(6):40~48.(in Chinese)
[7]施养杭,施景勋.料石砌体抗震抗剪强度[J].工程力学,1998,(增刊):598~601.Shi Yanghang,Shi Jingxun.Earthquake-resistant and shear strengths of stone masonry structures[J].Engineering Mechanics,1998,(supplement):598~601.(in Chinese)
[8]杨勇新,陈满圈.砌体结构中裂缝损伤的模糊综合评价[J].港工技术,1998,(3):29~32.Yang Yongxin,Chen Manquan.Fuzzy comprehensive judge of cracking damage on masonry structure[J].Port Engineering Technology,1998,(3):29~32.(in Chinese)
[9]苏小卒.砌体结构设计[M].上海:同济大学出版社,2002.5~9.Su Xiaozu.Design of masonry structures[M].Shanghai:Tongji University Press,2002.5~9.(in Chinese)
[10]施养杭,余建星.石砌体结构理论研究与应用现状[J].工程力学,1999,(增刊):291~296.Shi Yanghang,Yu Jianxing.Status of theoretical study and application of stone masonry structures[J].Engineering Mechanics,1999,(supplement):291~296.(in Chinese)
[11]吕西林.建筑结构抗震设计理论与实例[M].上海:同济大学出版社,2002,185~208.Lu Xilin.Design theory and examples for earthquake-resistant design of building structures[M].Shanghai:Tongji University Press,2002.185~208.(in Chinese)
[12]施养杭,罗刚.引入结构功能概念的抗震设计方法[J].福建建筑,2002,(1):30~31.Shi Yanghang,Luo Gang.An earthquake-resistant design method with the concept of structure performance[J].Fujian Architecture&Construction,2002,(1):30~31.(in Chinese)
[13]欧进萍,牛获涛.地震地面运动随机过程模型参数及其结构效应[J].哈尔滨建筑工程学院学报,1990,23(2):131~139.Ou Jinping,Niu Ditao.Parameters in the random process models of earthquake ground motion and their effects on the response of structures[J].Journal of Harbin University of Civil Engineering and Architecture,1990,23(2):131~139.(in Chinese)
[14]苏经宇,周锡元.场地类别模糊综合评定实用方法[J].岩土工程学报,1990,12(3):67~75.Su Jingyu,Zhou Xiyuan.Practical methods of fuzzy synthetic evaluation for site classification[J].Chinese Journal of Geotechnical Engineering,1990,12(3):67~75.(in Chinese)
[15]刘立新.砌体结构[M].长沙:武汉工业大学出版社,2001.4~11.Liu Lixin.Masonry structures[M].Changsha:Wuhan University of Technology Press,2001.4~11.(in Chinese)
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