In the paper, a new solution is proposed for reducing the seismic response of passive houses founded on layers of thermal insulation (TI) boards which, in such buildings, are usually installed beneath the RC foundations in order to prevent the occurrence of thermal bridges. This could be achieved by allowing controlled lateral sliding to occur along the horizontal surface between the individual layers of the TI boards, as a kind of seismic fuse. Depending on the size of the friction coefficient acting at this surface, three different seismic response scenarios can be foreseen: Scenario 1: Basic protection (“sliding prevention”), Scenario 2: Extended protection (“sliding controllable”), and Scenario 3: Full protection (“sliding isolation system”). Vertical and horizontal restraining elements are also introduced with the aim of preventing extreme lateral shifts or rocking phenomena. The nature of these three seismic response scenarios has been investigated by means of nonlinear dynamic analysis of some simplified parametric models, as well as of some realistic models of two, four and six storeyed RC passive house buildings. The results showed that the total base shear that might act on the superstructure could be reduced by permitting sliding between the layers of TI boards, thus reducing or even preventing the occurrence of damage. In the case of Scenario 2 the proposed seismic fuse could be used in modern energy-efficient houses practically without any additional costs.
F.24 Improvements to existing system-wide, normative and programme solutions, and methods
COBISS.SI-ID: 3270020Interview on the low-energy building in Slovenia
B.06 Other
COBISS.SI-ID: 3306372Lecture held at a foreign university on the topic of housing policy and development of residential neighborhoods in Central and Eastern Europe
B.04 Guest lecture
COBISS.SI-ID: 2780867