Research project of TU Vienna

Thin-walled precast concrete girders for bridge construction and civil engineering

Mechanized and automated production methods are becoming increasingly important for bridge construction and civil engineering. Composite steel-concrete construction is highly attractive because of the optimal uses to which both materials can be put and the possibility of prefabricating large parts of the load bearing structure.

In building and industrial construction, lattice-girder floor slabs and double-wall elements have been successfully used for years. These semi-precast elements of 5-7cm thickness serve as permanent formwork for the subsequently added in-situ concrete. The advantages of this construction method are planned to be applied in bridge construction and civil engineering as well. Toward that end, a research project was implemented at the Institute of Structural Engineering-Concrete Construction at Vienna’s University of Technology in collaboration with the Association of Austrian Concrete and Precast...

Related articles:

Issue 2014-02 From building component to engineering component

Bridge girders made of double walls erected by balanced lift method –

Motivation New bridge structures must be erected as quickly as possible to maintain the existing traffic network or, in the case of overpass structures, so as not to interfere with the traffic below...

Issue 2023-06

Faster and more material-efficient bridge construction with thin-walled structural precast elements

The Technical University of Vienna (TU Wien) has developed a new construction method for the fast and material-efficient construction of post-tensioned concrete bridges. The development of the LT...

Issue 2013-12

Efficiency analysis of precast floor slabs

Precast floor slabs consist of prefabricated floor elements supplemented with statically supporting cast-in-situ concrete. They combine the advantages of cast-in-situ construction with those of...

Issue 2023-08

A basic element as punching shear and bond reinforcement for all semi-precast floor slabs with in-situ concrete topping of various heights

The structural requirements for concrete structures have continuously increased in recent years. Flat slabs and slender columns quickly present structural engineers with the problem of verifying their...

Issue 2014-02 Concept

Optimizing floor systems in precast concrete construction –

Within budgets for building construction about 60 per cent of the costs incurred in the structural design are provided for the shell construction, with the main part accounting for the floor...