Zur Sicherheit und zur wirtschaftlichen Verstärkung ausgebeulter Stegbleche von Vollwandträgerbrücken unter Berücksichtigung der Ermüdung

After a brief history of the development of the buckling theory, the partial differential equations and the solutions to the non-linear buckling theory will be presented. The post critical domain with its descriptive possibilities like effective widths, in case of compression and bending and tension field-methods in case of shear, will be explained. These are also the basis for the design of plate-girders in the post critical domain. After the presentation of measures for the reinforcement of buckled slender web, one work-example will be calculated. However the main focus of this thesis is web-breathing. Detailed experimental and theoretical investigations with statistical analysis will be made. The effects of the influenced parameter on the secondary bending stresses y will be studied. Based on these investigations, one proposal for fatigue verification against web-breathing will be made.      «

After a brief history of the development of the buckling theory, the partial differential equations and the solutions to the non-linear buckling theory will be presented. The post critical domain with its descriptive possibilities like effective widths, in case of compression and bending and tension field-methods in case of shear, will be explained. These are also the basis for the design of plate-girders in the post critical domain. After the presentation of measures for the reinforcement of...     »