In this paper,an experimental study of an air inflated membrane was carried out based on the China National Stadium (the Bird's Nest). After the 2008 Olympic Games,it was apparent that the future use of the Bird&#...In this paper,an experimental study of an air inflated membrane was carried out based on the China National Stadium (the Bird's Nest). After the 2008 Olympic Games,it was apparent that the future use of the Bird's Nest would be enhanced if rainfall could be prevented from entering the stadium. The installation of an air inflated membrane across the opening of the steel structure was proposed as a solution to this problem. To verify the scheme,a theoretical analysis and experimental study of an air inflated membrane was carried out. Experimental and computational models were developed,form-finding was carried out using both experimental and theoretical methods,and the results from the two approaches,including the deflection of the air inflated membrane and deformation of the support structure,were analyzed and compared. The force-transfer path and deformation of the air inflated membrane under loads was studied. Conclusions and suggestions are presented.展开更多
China National Stadium,also known as "Bird's Nest",is the main stadium of the 29th Olympic Games in Beijing in 2008,which has successfully held not only the Opening and the Closing ceremonies but also th...China National Stadium,also known as "Bird's Nest",is the main stadium of the 29th Olympic Games in Beijing in 2008,which has successfully held not only the Opening and the Closing ceremonies but also the track and field events.A new problem of rain preventing is brought out to improve the utilization of the Bird's Nest after the Olympic Games.The scheme of installing an air inflated membrane at the opening of the steel structure is proposed in this paper to solve the rainproof problem of the Bird's Nest.The form-finding and mechanical analyses of the air inflated membrane are carried out.Comparison between the mechanical performance and dynamical character before and after installing the air inflated membrane structure is given.To verify the analysis results,based on the practical structure of the Bird's Nest,a test of a 1:20 model membrane is worked out.展开更多
文摘In this paper,an experimental study of an air inflated membrane was carried out based on the China National Stadium (the Bird's Nest). After the 2008 Olympic Games,it was apparent that the future use of the Bird's Nest would be enhanced if rainfall could be prevented from entering the stadium. The installation of an air inflated membrane across the opening of the steel structure was proposed as a solution to this problem. To verify the scheme,a theoretical analysis and experimental study of an air inflated membrane was carried out. Experimental and computational models were developed,form-finding was carried out using both experimental and theoretical methods,and the results from the two approaches,including the deflection of the air inflated membrane and deformation of the support structure,were analyzed and compared. The force-transfer path and deformation of the air inflated membrane under loads was studied. Conclusions and suggestions are presented.
文摘China National Stadium,also known as "Bird's Nest",is the main stadium of the 29th Olympic Games in Beijing in 2008,which has successfully held not only the Opening and the Closing ceremonies but also the track and field events.A new problem of rain preventing is brought out to improve the utilization of the Bird's Nest after the Olympic Games.The scheme of installing an air inflated membrane at the opening of the steel structure is proposed in this paper to solve the rainproof problem of the Bird's Nest.The form-finding and mechanical analyses of the air inflated membrane are carried out.Comparison between the mechanical performance and dynamical character before and after installing the air inflated membrane structure is given.To verify the analysis results,based on the practical structure of the Bird's Nest,a test of a 1:20 model membrane is worked out.
