The Mechanical Properties Analysis Of Cable Truss Glass Curtain Wall Structure Under Wind Load Action

Prestressed point fixed glass curtain wall, as a new type of structure system by thefavor of the building field at home and abroad, has been widely applied in buildingstructures, because it not only has good lighting insulation properties, but itsarchitectural appearance looks like lightsome beautiful and agile changeble. However,the responses of the prestressed cable truss point glass curtain wall as a soft structuresystem shows remarkable nonlinear characteristics by the wind loads and its reliabililityis diffcult to guarantee. At present, it is not mature to study the structure interriorly anddamaged engineering examples often have happen under the effect of wind load. Forthis reason, it has significant engineering meanings to further study the structural systemunder the effect of wind load.Firstly, this thesis summarizes all aspects of the application and current researchsituation of the point glass curtain wall over domestic and overseas. Sencondly there areanalyzed to the structural characteristics and stress factors of point glass curtain wall indetail and analyses main factors which influce the working performance of curtain wallstructure. Thirdly, three unit form of finite element stiffness matrix and and the mainprocess of establishing finite element equation are deduced, and futhermore there isintroduced the basic concept of dynamic theory and method and common used methodsof solving the linear and nonliean dynamics equation is discussed. Finally, throughestablishing3D model of structure system by using the finite element softwareSAP2000, mechanical response that the model is acted on quasi-static and dynamicwind loads is analyzed in detail and some useful conclusions are drawed.This thesis focuses on research as follows:（1）The various kinds main factorsinfluencing the performance of point supported glass curtain wall are analysed（;2） Thesynergy performance between steel suport truss structure and glass curtain wall acted byquasi static and fluctuating wind loads is analysed;（3）Glass curtain wall cable trussfinite element3D model is established;（4）There are analysed stress, displacement andvibration type reaction of glass curtain wall structure system loaded by quasi static andfluctuating wind load.