Full Scale Tests of the Base-Isolation System for an Emergency Hospital

Cavaleri, Liborio; Ferrotto, Marco Filippo; Trapani, Fabio Di; Castaldo, Paolo

doi:10.7712/120119.7054.19788

Cited by 8 publications

(2 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many similar tests have been carried out in the past on isolated structure in Italy [3][4][5] [6]. Some of them adopted a releasing device based on a quadrilateral articulated strut structure with a central fuse [7][8] [9], as also used in this work.…”

Section: Introductionmentioning

confidence: 99%

The New Camerino University Research Center: Design of the Base-Isolated Buinding and Dynamic Testing

Dall’Asta¹,

Leoni²,

Micozzi³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

View full text Add to dashboard Cite

This paper deals with the new Research Centre designed for the University of Camerino and entirely financed by the national Civil Protection Department (DPC), following the seismic events in Central Italy in 2016. The building consists of a base-isolated steel braced superstructure and r.c. sub-structures able to adapt to the complex morphology of the area. In particular, the first part of the paper illustrates the design choices made to achieve a high level of resilience and robustness of the building, i.e. to limit damage to structural and non-structural components and equipment under moderate and design seismic actions and to avoid disproportionate consequences in the event of extreme actions, larger than the design ones. The second part of the paper is focused on static and dynamic tests performed during the construction phase of the building. At the end of the structural system construction (including sub-structures, the isolation system composed by elastomeric bearings and flat sliders and the steel superstructure), the building has been tested by means of static and dynamic (snap-back) in-field tests up to a displacement of the isolation system of 280mm and 220mm, respectively. Displacements have been imposed by means of a properly designed testing mechanism and different measure instruments have been placed in the building to register the structural response.

show abstract

Section: Introductionmentioning

confidence: 99%

The New Camerino University Research Center: Design of the Base-Isolated Buinding and Dynamic Testing

Dall’Asta¹,

Leoni²,

Micozzi³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

View full text Add to dashboard Cite

show abstract

“…RC structures exhibit often significant structural and non-structural damage when subjected to medium-to-strong ground shakings. Retrofitting strategies as well as energy dissipation and isolation can be considered effective strategies for the improvement of the seismic behavior of load bearing frame elements such as beams or columns [2][3][4][5][6][7][8][9][10][11][12]. However, nonstructural damage related to elements such as infill walls is often neglected in the evaluation of the overall structural behavior.…”

Section: Introductionmentioning

confidence: 99%

Generation of Out-of-Plane Fragility Functions for in-Plane Damaged Unreinforced Masonry Infills

Pradhan¹,

Cavaleri²,

Sarhosis³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

Self Cite

View full text Add to dashboard Cite

Fragility assessment of unreinforced masonry (URM) infill walls under seismic loads is a current research topic for large scale risk analysis of reinforced concrete frame structures. In this paper, Out-of-Plane (OoP) fragility functions are developed by probabilistic approach based on Monte Carlo simulations employing a numerical macro-element model for the evaluation of the OoP capacity of infills. Uncertainties in the capacity were considered depending on the level of In-Plane (IP) damage and the variability in the geometrical and mechanical properties of the masonry infills. The fragility functions are therefore obtained considering the variability in the capacity instead of the seismic input as for other studies, considering also their sensitivity to the position in low rise buildings.

show abstract

Simplified procedures for seismic design verification and evaluation of lead rubber bearing base‐isolated buildings based on free‐vibration response

Song

Xiong

et al. 2020

Structural Design Tall Build

View full text Add to dashboard Cite

SummaryBase isolation has seen widespread application to buildings and infrastructures over the past four decades. However, there is a lack of methods for assessing the performance of a base‐isolated structure at the end of construction and during its service life. To this end, simplified methods are developed for verifying isolation design and evaluating seismic demands of rubber‐bearing‐supported base‐isolated buildings based on their free‐vibration response, which could be obtained using field (on‐site) testing. The base isolation layer consists of lead rubber bearings (LRBs) and linear natural rubber (LNR) bearings. For design verification purposes, analytical solutions are provided to benchmark the free‐vibration response of base‐isolated buildings, considering the general case of a multilinear hysteretic isolation response representing multiple LRBs with distinct mechanical specifications. In seismic demand evaluation, seismic capacity of an isolation system is estimated using free‐vibration response of various amplitudes that cover a range of expected seismic intensity of interest. Seismic demands are obtained when capacity coincides with an earthquake response spectrum at a compatible damping level. Procedures are developed for the potential use of snap‐back tests and verified using experimental and numerical data.

show abstract

Full Scale Tests of the Base-Isolation System for an Emergency Hospital

Cited by 8 publications

References 22 publications

The New Camerino University Research Center: Design of the Base-Isolated Buinding and Dynamic Testing

The New Camerino University Research Center: Design of the Base-Isolated Buinding and Dynamic Testing

Generation of Out-of-Plane Fragility Functions for in-Plane Damaged Unreinforced Masonry Infills

Simplified procedures for seismic design verification and evaluation of lead rubber bearing base‐isolated buildings based on free‐vibration response

Contact Info

Product

Resources

About