Thesis supervisor: Péter Hegyi
Location of studies (in Hungarian): Hidak és Szerkezetek Tanszék Abbreviation of location of studies: BMEHS
Description of the research topic:
Developments in the field of civil engineering, as well as the increasingly stringent sustainability requirements for structures, are leading to the optimization of existing building systems and the creation of new ones. For residential buildings and public institutions it is now a common construction method to use thin-walled steel elements as the main load-bearing structure, thus creating a material-saving structure. A possible direction for the further development of these structures is when the load-bearing steel frame is encased in a low-density thermal insulation material (e.g., in ultra-lightweight concrete). The resulting complex structure is able to meet the complex building constructional requirements with fewer materials used, provides fire protection, and houses can be built with very low energy consumption (even reaching passive category) if the appropriate encasing material is used.
From the structural point of view, the encasing material significantly influences the stability behaviour of the load-bearing steel members. To investigate this, a research programme was conducted at the BME, Department of Structural Engineering, during which experimental-based, numerical and analytical models were developed, and a design procedure with a limited scope of application was proposed. The development of this calculation procedure requires further work in order to create a system that is economical and provides greater architectural freedom.
The objective is to continue a research work that has already begun. The parts of the task to be performed are as follows:
(i) to design, carry out and evaluate experiments on structural elements, experiments should be based on and supplement the existing database, extending the interpretation range of the results;
(ii) further increase the range of experimental results using validated advanced nonlinear finite element models;
(iii) to compare newly obtained numerical and experimental results with the design procedure, to improve, amend the procedure;
(iv) to design, carry out and evaluate experiments on details and joints of the structural system;
(v) to develop and verify a calculation procedure which can adequately describe the behaviour of structural details and joints.
As a result of the research activity an improved design procedure will be established, which can be directly applied in the practical design.
Deadline for application: 2023-05-31
2024. IV. 17. ODT ülés Az ODT következő ülésére 2024. június 14-én, pénteken 10.00 órakor kerül sor a Semmelweis Egyetem Szenátusi termében (Bp. Üllői út 26. I. emelet).
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