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| Author(s): |
Hidelbrando José Farkat Diogenes
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Carlos. |
| Institution: | Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) |
| Defense date: | 2013-08-12 |
| Examining board members: |
Ana Lucia Homce de Cresce El Debs;
Vladimir Guilherme Haach;
João Alberto Venegas Requena;
Maria Isabel Brito Valente;
Pedro Colmar Gonçalves da Silva Vellasco
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| Advisor: | Ana Lucia Homce de Cresce El Debs |
| Abstract | |
For new structures, or even retrofitting old ones, the speed of construction has a significant impact not only on costs but also by potential harmful effects (noise, pollution, traffic of vehicles and people, etc.) provoked during the process. In this way, it is desirable a construction period as short as possible. Steel concrete composite structures respond satisfactorily to this need, since they have steel and concrete elements that can be industrially pre-fabricated, and only lifting and assembly are developed in-loco. Currently, however, the connections between steel and concrete used in composite structures are not well adapted to the use of precast concrete slabs, reducing the speed of assembling and also the durability of the produced floor. So, the need for the development of new types of connections becomes evident. Connections based on adherence, where the resistance comes from friction at interface, are a promising solution. Due to the lack of knowledge regarding this type of connections, additional studies must be conducted to make possible the use of connections by adherence. Present research aimed to analyze and discuss the behavior of connections by adherence between steel and concrete, through the combination of precast concrete slabs and steel beams with I cross sections. The connections are studied by means of experimental tests considering static loads. Additionally, dynamic tests are also carried out, aiming to observe the vibration produced by impact after static loads. The influence of damage provoked by static test on the natural frequencies of the beams was also investigated. The results obtained in the experimental program showed the good performance of the proposed connection and the feasibility of applying this solution to future composite structures. A nonlinear numerical analysis using commercially available software based on finite elements method was also performed, showing a good agreement with the experimental results. (AU) | |
| FAPESP's process: | 10/10516-6 - Numerical and experimental analysis of steel-concrete bond connections |
| Grantee: | Hidelbrando Jose Farkat Diógenes |
| Support Opportunities: | Scholarships in Brazil - Doctorate |