Dynamic analysis in a bi-axial hollow slab submitted to human actions

Abstract The bi-axial hollow slab is the result of applying a technology that removes concrete from the least useful region and replaces it with hollow plastic spheres. This technique leads to material economy and self-weight saving, without considerable inertial loss, enabling larger and more flex...

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Main Authors: Tiago Mota, Marcos Honorato Oliveira, Graciela Doz
Format: Article
Language:English
Published: Instituto Brasileiro do Concreto (IBRACON) 2024-02-01
Series:Revista IBRACON de Estruturas e Materiais
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952024000600207&tlng=en
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author Tiago Mota
Marcos Honorato Oliveira
Graciela Doz
author_facet Tiago Mota
Marcos Honorato Oliveira
Graciela Doz
author_sort Tiago Mota
collection DOAJ
description Abstract The bi-axial hollow slab is the result of applying a technology that removes concrete from the least useful region and replaces it with hollow plastic spheres. This technique leads to material economy and self-weight saving, without considerable inertial loss, enabling larger and more flexible spans. Consequently, these spans are vulnerable to unwanted vibrations and dynamic acceleration caused by external actions, such as movements produced by human activity. This way, understanding the dynamic behavior of this technology and confronting it with normative limits on the project phase is essential for a good performance in the serviceability limit state, bringing comfort to the user. This paper studies the dynamic behavior of a bi-axial hollow slab submitted to human actions, such as jumping, dancing, clapping, moving the body, and moving and clapping at the same time. For that, this work made a numerical model of the structure and applied dynamic actions to it. The numerical results show that, for most of the actions, normative limits are satisfied, but the slab presents excessive accelerations in the case of jumping and dancing.
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spelling doaj.art-ccef9c726b794c21b29daef10b9da7ef2024-02-27T07:38:30ZengInstituto Brasileiro do Concreto (IBRACON)Revista IBRACON de Estruturas e Materiais1983-41952024-02-0117610.1590/s1983-41952024000600008Dynamic analysis in a bi-axial hollow slab submitted to human actionsTiago Motahttps://orcid.org/0000-0002-7682-0473Marcos Honorato Oliveirahttps://orcid.org/0000-0003-1251-7923Graciela Dozhttps://orcid.org/0000-0001-6428-4012 Abstract The bi-axial hollow slab is the result of applying a technology that removes concrete from the least useful region and replaces it with hollow plastic spheres. This technique leads to material economy and self-weight saving, without considerable inertial loss, enabling larger and more flexible spans. Consequently, these spans are vulnerable to unwanted vibrations and dynamic acceleration caused by external actions, such as movements produced by human activity. This way, understanding the dynamic behavior of this technology and confronting it with normative limits on the project phase is essential for a good performance in the serviceability limit state, bringing comfort to the user. This paper studies the dynamic behavior of a bi-axial hollow slab submitted to human actions, such as jumping, dancing, clapping, moving the body, and moving and clapping at the same time. For that, this work made a numerical model of the structure and applied dynamic actions to it. The numerical results show that, for most of the actions, normative limits are satisfied, but the slab presents excessive accelerations in the case of jumping and dancing.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952024000600207&tlng=endynamic analysishollow slabhuman actionsvibrations
spellingShingle Tiago Mota
Marcos Honorato Oliveira
Graciela Doz
Dynamic analysis in a bi-axial hollow slab submitted to human actions
Revista IBRACON de Estruturas e Materiais
dynamic analysis
hollow slab
human actions
vibrations
title Dynamic analysis in a bi-axial hollow slab submitted to human actions
title_full Dynamic analysis in a bi-axial hollow slab submitted to human actions
title_fullStr Dynamic analysis in a bi-axial hollow slab submitted to human actions
title_full_unstemmed Dynamic analysis in a bi-axial hollow slab submitted to human actions
title_short Dynamic analysis in a bi-axial hollow slab submitted to human actions
title_sort dynamic analysis in a bi axial hollow slab submitted to human actions
topic dynamic analysis
hollow slab
human actions
vibrations
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952024000600207&tlng=en
work_keys_str_mv AT tiagomota dynamicanalysisinabiaxialhollowslabsubmittedtohumanactions
AT marcoshonoratooliveira dynamicanalysisinabiaxialhollowslabsubmittedtohumanactions
AT gracieladoz dynamicanalysisinabiaxialhollowslabsubmittedtohumanactions