Large Span Floor Beams with Web Openings (LAC_1998.A)

To investigate the behaviour of a long-span floor beam, which is built-in in a high rise building, a full scale test was carried out at the University of Kaiserslautern. Besides other topics, the different and large web openings have been the particularity of this beam. Physically nonlinear calculations show a quite good accordance to the behavior of the test specimen. For calculating the combined bending and shear capacity of the composite beam, a simple engineering model was developed. It is compared with the test results, which have been obtained from two other research projects, conducted at Kaiserslautern University. In addition the vibrational behaviour of the same beam, which is built-in in a high rise building, is presented. The clear damping effect due to the completion of the building outfit, on the vibrational behaviour can be confirmed and quantified.