Banca de DEFESA: Tiago de Azevedo Mota

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : Tiago de Azevedo Mota
DATE: 25/07/2023
TIME: 14:30
LOCAL: Online via plataforma Teams
TITLE:

NUMERICAL ANALYSIS OF THE DYNAMIC PERFORMANCE OF A BIDIRECTIONAL RIGID HOLLOW SLAB FLOOR

KEY WORDS:

Hollow Slab - Dynamic Analysis - Human Actions - Vibrations

PAGES: 100
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Estruturas
SPECIALTY: Estruturas de Concreto
SUMMARY:

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 produces by human activity. This way, understanding the dynamic behavior of this technology and confronting it with normative limits on project phase is essential for a good performance in the serviceability limit state, bringing comfort to the user. This research 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, and subsequently compare the results with a solid slab of the same inertia. For that, this work made a numerical model of the structure and applied dynamic actions to it. Numerical results show that, for most actions (clap, moving the body, and moving and clapping at the same time), normative service limits are met for both the relieved slab and the solid control slab, however, both show excessive accelerations for the actions of jumping and dancing, reaching, respectively, 273% and 150% above the established limit.

COMMITTEE MEMBERS:
Presidente - 1225412 - GRACIELA NORA DOZ DE CARVALHO
Interno - ***.843.298-** - JOSE LUIS VITAL DE BRITO - UnB
Externa ao Programa - 2583882 - MAURA ANGELICA MILFONT SHZU - UnBExterno à Instituição - ANDRE LUIZ AQUERE DE CERQUEIRA E SOUZA