The risk‐targeted verification model of earthquake‐induced sliding displacement of low‐rise thermally base‐insulated buildings

Abstract

New construction technologies are evolving in the market faster than codes for earthquake-resistant building design. Earthquake-resistant design of nearly zero-energy buildings that are constructed throughout Europe and thermally insulated system below the foundation is not yet supported by the codes. However, major earthquakes can cause the sliding of these buildings and damage lifelines, potentially triggering domino effects such as fire or explosions. To address this issue, a numerical framework to evaluate the risk-targeted engineering demand parameter is introduced and applied to establish a database of risk-targeted sliding displacements in Slovenia for low-rise buildings with a specific type of thermally insulated system below foundation pads. The database of risk-targeted sliding displacement accounts for seismic hazard at the location of the building, the soil type, the thermally insulated foundation pad system variant, and the characteristics of the structure above the thermal insulation layers. The database of the risk-targeted sliding displacement was then used to introduce a code-based verification model to design the diameter of the penetration in the structure of low-rise buildings, with the aim of preventing the failure of hazardous lifelines entering the building. Engineering practitioners can easily apply this simple verification model to design the diameter of the penetrations. However, the model shows that the maximum sliding displacement corresponding to the annual target risk of 2⋅10 −4 is expected to be only about 4 cm for the thermally base-insulated low-rise buildings in Slovenia investigated in this study.

Bias in the Estimation of Seismic Risk for Municipal Building Stocks Due to Limited Data

“…The hazard curves were calculated for soil type A [27] using the OpenQuake engine [28,29] and the ESHM2020 model [30]. For other soil types, the PGA values from the hazard curves for soil type A were transformed based on the soil factors proposed in the draft of the new Eurocode 8 [31], as in a previous study [32].…”

Risk‐targeted seismic design: Prospects, applications, and open issues, for the next generation of building codes

“…The topic of design methods alone occupies one-third of the papers, which is not surprising given the scope of the SI. The papers by Ahmadie Amiri and Estekanci, 11 Chen et al, 12 and the two by Dolsek and co-workers, 13,14 deal with the risk-targeted design of specific structural types, while those of Fox and O'Reilly, 15 Kourehpaz et al, 16 Clemett et al, 17 and Hulsey et al, 18 with the role of seismic vulnerability (i.e., fragility) in risk-targeted design. A few papers deal with more specific issues, such as non-structural elements (i.e., Merino et al), 19 or go beyond targeting risk, that is, considering seismic resilience (i.e., Blowes et al).…”