预应力结构小比例模型设计方法探讨
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摘要
以某预应力大悬挑混凝土框架-剪力墙结构为例,在现有结构模型相似理论的基础上,对预应力结构小比例模型设计方法进行了研究。该模型比例较小,同时满足模型整体结构和预应力构件的相似要求是对模型设计的较大挑战;提出基于"预应力作用效应"相似的设计方法,对结构悬挑部位的预应力构件进行相似设计,即用量纲分析法获得模型整体结构相似常数,进而推导预应力构件作用效应的相似方法,进行该结构小比例预应力构件设计。通过实例设计分析,证明该设计方法的合理性和有效性。
Taking a large-span,cantilever pre-stressed structure as an example,the similitude law for its small-scaled model was studied based on the existed model experimental similitude theory. Generally,for the pre-stressed members,similarity expressions of the global structure are not compatible to the ones of the specific local components. Therefore,the innovative similitude law and design procedures were proposed according to the cantilever pre-stressed structural behavior. Corresponding similitude constants were thus achieved. To verify the effectiveness and rationality of the aforementioned structures similitude law,the design of a smallscaled model of a pre-stressed concrete structure were accomplished and evaluated.
Taking a large-span,cantilever pre-stressed structure as an example,the similitude law for its small-scaled model was studied based on the existed model experimental similitude theory. Generally,for the pre-stressed members,similarity expressions of the global structure are not compatible to the ones of the specific local components. Therefore,the innovative similitude law and design procedures were proposed according to the cantilever pre-stressed structural behavior. Corresponding similitude constants were thus achieved. To verify the effectiveness and rationality of the aforementioned structures similitude law,the design of a smallscaled model of a pre-stressed concrete structure were accomplished and evaluated.
引文
[1]吕西林,邹昀,卢文胜,等.上海环球金融中心大厦结构模型振动台抗震试验[J].地震工程与工程振动,2004,20(3):57-63.Lu Xilin,Zou Yun,Lu Wensheng,et al.Experimental study on Shanghai Finacial Center[J].Earthquake Engineering and Engineering Vibration,2004,24(3):57-63.(in Chinese)
[2]李检保,吕西林,卢文胜,等.北京LG大厦单塔结构整体模型模拟地震振动台试验研究[J].建筑结构学报,2006,27(2):10-14,39.Li Jianbao,Lu Xilin,Lu Wensheng,et al.Shaking table model test of Beijing LG building[J].Journal of Building Structures,2006,27(2):10-14,39.(in Chinese)
[3]王栋,卢文胜,吕西林.某高位转换框支剪力墙超限高层结构模拟地震振动台试验研究[J].振动与冲击,2013,32(21):142-149.Wang Dong,Lu Wensheng,Lu Xilin.Shaking table test of a high-rise frame-supported shear wall structure with a high transfer floor[J].Journal of Vibration and Shock,2013,32(21):142-149.(in Chinese)
[4]周颖,吕西林,卢文胜.不同结构的振动台试验模型等效设计方法[J].结构工程师,2006,22(4):37-40.Zhou Ying,Lu Xilin,Lu Wensheng.Shaking table test model design in different structures[J].Structural Engineers,2006,22(4):37-40.(in Chinese)
[5]Kim N S,Lee J H,Chang S P.Equivalent multiphase similitude law for pseudodynamic test on small scale reinforced concrete models[J].Engineering Structures,2009,31(4):834-846.
[6]Ioannis V,Kalpakidis,Micheal C,Constaninou.Principles of scaling and similarity for testing of leadrubber bearings[J].Earthquake Engineering and Structural Dynamics,2010,39:1551-1568.
[7]陈以一,张大照,薛伟辰,等.环向空间预应力结构模型振动台试验研究[J].地震工程与工程振动,2006,26(6):158-163.Chen Yiyi,Zhang Dazhao,Xue Weichen,et al.Shaking table model test for circular spatial and prestressed structure[J].Earthquake Engineering and Engineering Vibration,2006,26(6):158-163.(in Chinese)
[8]胡锡勇,卢文胜,沈伟明.预应力混凝土简支梁小比例结构模型相似关系[J].结构工程师,2011,27(1):110-117.Hu Xiyong,Lu Wensheng,Shen Weiming.Similarity law for small-sized model of prestressed concrete simply supported beams[J].Structural Engineers,2011,27(1):110-117.(in Chinese)
[9]周颖,卢文胜,吕西林.模拟地震振动台模型实用设计方法[J].结构工程师,2003,19(3):30-33.Zhou Ying,Lu Wensheng,Lu Xilin.Practical model design method of shaking table tests[J].Structural Engineers,2003,19(3):30-33.(in Chinese)
[10]程东辉,薛志成.预应力混凝土结构[M].北京:中国计量出版社,2010.Cheng Donghui,Xue Zhicheng.Prestressed concrete sturctures[M].Beijing:China Metrology Publishing House,2010.(in Chinese)
[2]李检保,吕西林,卢文胜,等.北京LG大厦单塔结构整体模型模拟地震振动台试验研究[J].建筑结构学报,2006,27(2):10-14,39.Li Jianbao,Lu Xilin,Lu Wensheng,et al.Shaking table model test of Beijing LG building[J].Journal of Building Structures,2006,27(2):10-14,39.(in Chinese)
[3]王栋,卢文胜,吕西林.某高位转换框支剪力墙超限高层结构模拟地震振动台试验研究[J].振动与冲击,2013,32(21):142-149.Wang Dong,Lu Wensheng,Lu Xilin.Shaking table test of a high-rise frame-supported shear wall structure with a high transfer floor[J].Journal of Vibration and Shock,2013,32(21):142-149.(in Chinese)
[4]周颖,吕西林,卢文胜.不同结构的振动台试验模型等效设计方法[J].结构工程师,2006,22(4):37-40.Zhou Ying,Lu Xilin,Lu Wensheng.Shaking table test model design in different structures[J].Structural Engineers,2006,22(4):37-40.(in Chinese)
[5]Kim N S,Lee J H,Chang S P.Equivalent multiphase similitude law for pseudodynamic test on small scale reinforced concrete models[J].Engineering Structures,2009,31(4):834-846.
[6]Ioannis V,Kalpakidis,Micheal C,Constaninou.Principles of scaling and similarity for testing of leadrubber bearings[J].Earthquake Engineering and Structural Dynamics,2010,39:1551-1568.
[7]陈以一,张大照,薛伟辰,等.环向空间预应力结构模型振动台试验研究[J].地震工程与工程振动,2006,26(6):158-163.Chen Yiyi,Zhang Dazhao,Xue Weichen,et al.Shaking table model test for circular spatial and prestressed structure[J].Earthquake Engineering and Engineering Vibration,2006,26(6):158-163.(in Chinese)
[8]胡锡勇,卢文胜,沈伟明.预应力混凝土简支梁小比例结构模型相似关系[J].结构工程师,2011,27(1):110-117.Hu Xiyong,Lu Wensheng,Shen Weiming.Similarity law for small-sized model of prestressed concrete simply supported beams[J].Structural Engineers,2011,27(1):110-117.(in Chinese)
[9]周颖,卢文胜,吕西林.模拟地震振动台模型实用设计方法[J].结构工程师,2003,19(3):30-33.Zhou Ying,Lu Wensheng,Lu Xilin.Practical model design method of shaking table tests[J].Structural Engineers,2003,19(3):30-33.(in Chinese)
[10]程东辉,薛志成.预应力混凝土结构[M].北京:中国计量出版社,2010.Cheng Donghui,Xue Zhicheng.Prestressed concrete sturctures[M].Beijing:China Metrology Publishing House,2010.(in Chinese)
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