| 
						| 引用本文: | 敖文刚,晏致涛,王承启.中承式桁架拱桥节段模型风洞试验研究(J/M/D/N,J:杂志,M:书,D:论文,N:报纸).期刊名称,2007,(5): |  |  | CHEN X. Adap tive slidingmode contr ol for discrete2ti me multi2inputmulti2 out put systems[ J ]. Aut omatica, 2006, 42(6): 4272-435 |  | 
				
			
			  
				|  | 
			
             			 
		     | 摘要: | 
			 
		     | 通过重庆朝天门长江大桥的节段模型静力试验和动力试验,获得了主梁及主拱的静力三分力系数随攻角的变化规律、主梁的颤振特性,识别了主梁的8个颤振导数,并对试验获得的结果进行了详细分析;对该桥的主梁和主拱结构的抗风性能进行了评价。 | 
			
	         
				| 关键词:  朝天门长江大桥  静力三分力  风洞试验  节段模型  颤振导数 | 
			 
                | DOI: | 
            
                | 分类号:TU311 | 
			 
             
                | 基金项目: | 
          |  | 
           
                | Wind tunnel test of segmental models of half-through truss arch bridges | 
           
			
                | AO Wen-gang  YAN Zhi-tao  WANG Cheng-qi | 
           
		   
             
                | Abstract: | 
			
                | Based on static dynamic force test of segmental models of Chongqing Chaotianmen Bridge,dynamic force test,the varying law of the coefficients of three-dimensional static component forces with the changing of attack angles and properties of main girder and | 
	       
                | Key words:  Chaotianmen Bridge over Yantze River,three-dimensinonal static force,wind-tunnel test,segmental model,flutter derivative |