Elastic Node High-level Frame Structure Calculation Theory And Application

The paper designs a calculating modula of fiexible connection bar unit and flexible jointsstructure, deduces the formula of the force of bar and under usual force of non — jonts, unilizing the above aproaches the fiexlble structure as follows:The first is the study of static analysis of fiexible joints structure. The paper organizes aprogram of fiexible joints,analizes the calculating results of the structure fiexible joints andrisid joints with the program,a conclution where etastic jonts have infulences on both internalforce and deformation struotue.Second, limit load calculation of fiexible joints structure.The paper creats the calculating methods having the traits of simplicilty to treat withplastic hinge, the style inviration to unit rigid matrix, owe to comple progrm.The result shows that the rigidity ratio of beam to column will have infiuence directly onthe formation of structural break and the defination of struoture limting load, the joint flexibityhave little influence on it. A load calculating program was compiled fot this.Third, the infulence of fiexible joints on the response to earth shockThe paper complies a program, using the calculation of flexible joint response toearthquake. By the comparation of calcutating results of fiexible and rigid structure,The writerdeem that,flexible joint have infulence on strucure dynatic property and dynamic response.Forth,the anti—sideway ability of the structure with fiexible joint under strong shock.The paper creat a simplified method as an non — line response can be main used toappredciated the specific ability of the present structure or desisn. The results shows that thejoint's flexibitity have little infiueuco on structure under the condition of strong shock in somedegree when the joint's fexibity beyond this degree,the structure are still in flexible stagebecause of the extra "flexible" of the structure.