Distributed Passive Actuation Schemes for Seismic Protection of Multibuilding Systems

Abstract

In this paper, we investigate the design of distributed damping systems (DDSs) for the overall seismic protection of multiple adjacent buildings. The considered DDSs contain interstory dampers implemented inside the buildings and also interbuilding damping links. The design objectives include mitigating the buildings seismic response by reducing the interstory-drift and story-acceleration peak-values and producing small interbuilding approachings to decrease the risk of interbuilding collisions. Designing high-performance DDS configurations requires determining convenient damper positions and computing proper values for the damper parameters. That allocation-tuning optimization problem can pose serious computational difficulties for large-scale multibuilding systems. The design methodology proposed in this work—(i) is based on an effective matrix formulation of the damped multibuilding system; (ii) follows an H ∞ approach to define an objective function with fast-evaluation characteristics; (iii) exploits the computational advantages of the current state-of-the-art genetic algorithm solvers, including the usage of hybrid discrete-continuous optimization and parallel computing; and (iv) allows setting actuation schemes of particular interest such as full-linked configurations or nonactuated buildings. To illustrate the main features of the presented methodology, we consider a system of five adjacent multistory buildings and design three full-linked DDS configurations with a different number of actuated buildings. The obtained results confirm the flexibility and effectiveness of the proposed design approach and demonstrate the high-performance characteristics of the devised DDS configurations.

A Combined Analytical Method for Intelligent Control of Friction Damped Structures

“…Sanghai & Pawade (2021) and Miguel & Pérez (2017(, approved that the displacement reductions are about 80% for 4, 9, and 10 stories scenarios. Palacios et al (2020) reported about 50% and 40% reductions in the overall inter story-drift and acceleration peak-value, respectively. Kim & An (2016) concluded that maximum roof displacement and the inter-story drift ratio were reduced by 30% and 40%, respectively.…”

“…However, the results showed that the average displacement decreased by approximately 82%. Palacios et al (2020) worked on protecting multiple adjacent buildings by using distributed damping systems. They reported about 50% in the overall inter story-drift of 40% in the overall acceleration peak-value.…”

Editorial for “Recent Advances in the Design of Structures with Passive Energy Dissipation Systems”

“…The inerter modifies the inertial properties of the structures while adding negligible physical mass, and it may be a cost-effective solution for both seismic [2,4] and wind [1,3] vibration control. Some other papers concern the development of efficient design methods that exploit state-of-the-art algorithms and solvers for the optimization of the devices [11,13]. One paper concerns the challenging task of designing lead rubber bearings considering different performance requirements [10].…”

“…In paper [13], Palacios-Quiñonero et al develop an optimal passive actuation scheme of multibuilding systems composed of both interstory and interbuilding linear viscous dampers. Unlike other literature studies that are limited to one or at the most two adjacent buildings, the paper addresses a set of five identical planar frames.…”

A Novel Iterative Linear Matrix Inequality Design Procedure for Passive Inter-Substructure Vibration Control

“…Recent works in that line include ISSD designs based on a wide variety of optimization objectives, such as structural performance [21], energy dissipation [22], total-building performance [23], retrofitting cost [24] and structural reliability [25]. Advanced ISSD designs consider soil-structure interactions [26], irregular 3D structures [21] and multi-building problems [27,28]. Enhanced design strategies include simplifying procedures to deal with the high computational cost in nonlinear studies [29], design methodologies based on active control approaches [30,31] and special seismic excitation schemes [32].…”