P 1005 – Investigation of structural behaviour and durability of adhesive bonded joint in steel structure under cyclic loading
The application of innovative adhesive technology increases the productivity, quality and efficiency of German steel construction. It also represents an alternative to the classical joining methods, which entail fundamental disadvantages for steel constructions. Thus, by the adhesively bonding process welding depended distortions and weakening of screwed cross sections can be avoided. Due to the high degree of prefabrication, steel construction is predestined for the application of adhesive bonding technology, since sustainable, serviceable and durable bondlines can be produced under workshop conditions. However, the design of such bonded steel connections is not possible based on current standards. Time-consuming and expensive approval procedures would be necessary, which is why small and mediumsized companies decide against adhesive technology. The inclusion of steel adhesive bonds in standardization would remedy this situation. For this reason, in a first step basics for the verification of the load-bearing capacity will be elaborated on the basis of two applications of bonded steel façade construction, which refer exclusively to short-acting, one-time and quasistatic loads. Another objective of the project is to supplement these findings with investigation of the long-term behaviour of bonded joints under cyclic loading. The analyzed results provide input variables for the development of design concepts for adhesively bonded steel joints.
Prof. Pasternak, Prof. Dilger