Bemessung von Gebäuden in Brettsperrholzbauweise unter Erdbebenbeanspruchung

Design of CLT buildings under seismic actions Cross‐Laminated‐Timber (CLT) is an engineered wood product that have been manufactured in Europe for more than ten years, and widely used throughout the continent, with good results in terms of structural behavior, building speed and quality housing. In CLT buildings, resistance to horizontal actions – wind and earthquakes – is entrusted to the wall panel and to metal connection systems to ensure the transfer of shear actions at the base of the wall and the tension actions causing the wall's rocking behavior. Moreover, metal connection systems are systematically adopted for joining the vertical and horizontal diaphragms to ensure a „box like” behavior. This paper illustrates the basic concept of the design under lateral load actions of CLT buildings, with special emphasis to the role of the connections systems, and reports some results of recent research projects, carried out at the University of Trento, by mean both theoretical and experimental investigations. On the basis of this research work accomplished in recent years, a process of technology transfer between research and practice resulted in the development of a software for the design of CLT multi‐storey buildings.     

Optimierung des Einflusses von Latentspeichermaterial auf das thermische Verhalten von Gebäuden

Optimization of the influence of phase change material on the thermal behaviour of buildings. The aim of the present work is to investigate the value of using Phase Change Material, successive as PCM designated, in buildings. For this purpose a simulation program was first developed as a tool to design und to optimize the usage of PCM in buildings. This program allowed us to simulate the dynamic thermal behaviour in buildings with application of PCM. The experiments were carried out with a test box under conditions with or without application of PCM. The goals were firstly to investigate the temperature stabilization effect of PCM and secondly to validate the developed simulation program. Comparison of the data from the measurement and from the simulation confirmed, that the developed program can exactly describe the dynamic thermal behaviour of a room. The simulation model was then used to optimize PCM application in buildings. On the basis of a room model the important influence parameters were investigated, including the required quantity and the phase change temperature of PCM, the air change rate of a room and the ventilation rate for PCM‐layer. It appeared that the optimal physical state of PCM could determine the optimal value of these influence parameters.