Integration von TGA-Installationen im Aufbeton von Spannbeton-Elementplatten

Implementation of Building Services' Installations on Top of Prestressed Precast Plates at Composite Concrete Floors

With regard to the sustainable use of new housing and commercial buildings, a maximum flexibility of space should be achieved providing far more than its initial conceived use. Composite floors of prestressed precast plates with an in-situ solid concrete topping serve to meet this requirement very well. It is also easily possible to install a lot of different building services' ducts and lines on top of the prestressed precast plate on site without impact of later design modification before in-situ concrete is cast. Firstly, the effective weakening cross-sections from the building installations at the slab structure have been defined on the basis of the evaluation of a number of representative housing and commercial buildings. The structural impact at the slab structure resulting from defined weakening sections are analysed to define the remaining structural resistance. Based on reported research results it can be shown that the weakening resulting from the implemented normal ducts and lines is widely admissible without reduction of total structural resistance.