National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
A Study on the Arch-Supported Membrane Structures Resistance to Ponding Effect
Zajac, Zbyněk ; Lang, Rostislav ; Němec, Ivan
This study deals with the ability of arch-supported membrane structures to withstand water accumulation. A previously developed specialized software tool may help prevent the occurrence of the ponding effect already in the design process. The influence of dimensions, surface prestress level and membrane material was investigated. The initial support layout and topology’s influence on the occurrence of the ponding effect was proved. The study outcomes may serve as the basis for the initial dimensions design of arch-supported membrane structures.
Analysis of membrane structures
Motyčka, Tomáš ; Zajac, Zbyněk (referee) ; Lang, Rostislav (advisor)
This thesis focuses on a comprehensive analysis and design of membrane structures that are one of the most dynamically developing areas in structural engineering. These structures, that are characterised by their ability to cover large spans with a minimum number of supporting elements and provide high levels of natural light due to their translucency, are examined in this thesis from theoretical and practical perspectives. In the theoretical part of the thesis, the basic principles of their design and analysis are described, including detailed A detailed discussion of the materials and technologies used. Special attention is paid to mechanical properties of fabrics, which are crucial for the functionality and durability of these structures. The second chapter deals with the numerical analysis of membrane structures, with an emphasis on the non linear mechanics, the form-finding process for determining the optimal shape of the structure, and methods for calculation of cutting patterns. In the practical part, case studies are presented, including the analysis of prestressed membrane of the Anthropos dance pavilion and the ETFE cushion roof structure. These studies offer insights into the challenges and solutions associated with the design and analysis of membrane structures, including detailed descriptions of the structures, calculation models and load analyses. Specific emphasis is placed on Analysis of the 'ponding' effect, a common cause of failure in these structures.

Interested in being notified about new results for this query?
Subscribe to the RSS feed.