Normen für den Konstruktiven Ingenieurbau

Codes in Structural Engineering In structural engineering codes are of essential importance. Codes have to represent accepted rules as well as the state of the art in science and technology and they provide a basis for the communication between all involved professionals. In codes of the future all procedural steps of planning have to be included – design, execution, service, conservation and dismantlement – and an integral approach to safety and quality has to be adopted. In comparison to present codes, the technical breadth and the level of detail will increase. Nonetheless, the overall aim of code writers shall be to come up with regulations that are easy to understand and to apply. Codes of the future have to (re‐)gain their significance and acceptance.     

Umgelenkte Lamellen aus kohlefaserverstärktem Kunststoff für freistehende Spannglieder im Konstruktiven Ingenieurbau

Behaviour of Deviated CFRP‐Strips Carbon fiber reinforced plastic (CFRP) has a number of excellent properties with a wide range of application possibilities in structural engineering. In the last two decades, the use of CFRP‐Strips as a reinforcement for concrete members has emerged as one of the most exciting and promising technologies in structural engineering. These strips could also be used for external prestressing of bridges or for unstrained ceilings in high building structures. Therefore the problematic of the end‐anchorage and the deviation of the strips, due to the sensitivity of the carbon fibers to transverse loads, has to be solved. Several research institutions have already suggested solutions for CFRP‐strip anchorage. In this paper the results of an experimental program of deviated CFRP‐strips at deviation saddle are introduced. The effects of the different parameters on the load bearing capacity, strain responses up to failure and the failure mode of the CFRP‐strip at the deviation saddle are investigated.