City Research Online

A novel integrated optimization-driven design framework for minimum-weight lateral-load resisting systems in wind-sensitive buildings equipped with dynamic vibration absorbers

Wang, Z. & Giaralis, A. ORCID: 0000-0002-2952-1171 (2022). A novel integrated optimization-driven design framework for minimum-weight lateral-load resisting systems in wind-sensitive buildings equipped with dynamic vibration absorbers. Structural Control and Health Monitoring,

Abstract

he increasing rate of urbanization in recent decades has resulted in a global surge in the construction of slender high-rise buildings. These structures are prone to excessive wind-induced lateral vibrations in the crosswind direction owing to vortex shedding effects, causing occupant discomfort, and ultimately, dynamic serviceability failure. To reconcile the worldwide accelerated trend in constructing tall buildings with the sustainable building sector agenda, this paper proposes a novel bi-objective integrated design framework that leverages dynamic vibration absorbers (DVAs) to minimize the required material usage in the wind load-resisting structural systems (WLSSs) of occupant comfort-governed tall buildings. The framework couples structural sizing optimization for minimum-weight WLSS design (objective 1), with optimal DVA tuning for floor acceleration minimization to satisfy codified wind comfort design requirements by using the smallest DVA inertia (objective 2). Furthermore, a versatile numerical strategy is devised for the efficient solution of the proposed bi-objective optimization problem. For illustration, the framework is applied to a 15-story steel building equipped with one of two different DVAs: a widely considered top-floor tuned mass damper(TMD) and an innovative ground-floor tuned inerter damper (TID). The derived Pareto-optimal integrated (WLSS-plus-DVA) designs demonstrate that significant reductions in both structural steel usage and embodied carbon emissions canbe achieved using either one of the two DVAs with moderate inertia. It is concluded that the proposed optimization-driven design framework and numerical solution strategy offer an alternative innovative approach to achieve material-efficient high-rise buildings under wind hazards

Publication Type: Article
Additional Information: This is the peer reviewed version of the following article: Wang, Z. & Giaralis, A. (2022). A novel integrated optimization-driven design framework for minimum-weight lateral-load resisting systems in wind-sensitive buildings equipped with dynamic vibration absorbers. Structural Control and Health Monitoring, which will be published in final form at https://onlinelibrary.wiley.com/journal/15452263. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
Publisher Keywords: structural sizing optimization, tuned mass dampers, inerter vibration control, embodied carbon, tall buildings, wind excitation
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: School of Science & Technology > Engineering
[img] Text - Accepted Version
This document is not freely accessible due to copyright restrictions.

To request a copy, please use the button below.

Request a copy

Export

Downloads

Downloads per month over past year

View more statistics

Actions (login required)

Admin Login Admin Login