An innovative design concept for formwork systems
Fresh concrete pressure for free-form structural concrete components –
![→ 1 Casa de Msica concert hall in Porto, Portugal [1]](https://www.bft-international.com/imgs/103980686_028b1ab17f.jpg)
![→ 2 Stress ratio of fresh concrete pressure values determined for an inclined top form and a perpendicular form [4]](https://www.bft-international.com/imgs/103980699_684e3e178a.jpg)
![→ 3 Characteristic fresh concrete pressure perpendicular to the surface of a vertical form for various wall thicknesses b depending on the product of concreting speed v and fresh concrete setting time tE,eff compared to fresh concrete pressure calculated according to DIN 18218 [4]](https://www.bft-international.com/imgs/103980687_8d93721b3b.jpg)
Structural concrete components with inclined and/or curved surfaces are becoming increasingly popular in contemporary architecture (Fig. 1). Such concrete structures have long been the state of the art in structural engineering; they are used in many different fields, including for reservoirs and tunnel segments. Such elements are usually produced with double-faced formwork and impose demanding requirements on both formwork technology and the actual construction process. The design of formwork systems is largely determined by fresh concrete pressure, which results from the own weight of the...
