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Beräkning av betongplattor med FEM-Design: En jämförelse som utmynnar i ett kursmaterial
2011 (Swedish)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In today’s society increasingly complicated buildings are designed, and at the same time there is a desire that it shall happen in a shorter period of time. This fact has undeniably contributed to that it has become more and more usual with computerized design calculations, which is based on the finite element method instead of the classical hand calculations methods. The question is whether the results differs from each other between the different calculations methods, and in that case in which way? To be able to answer this question this work starts with an investigation of the classical hand calculation methods, which is based on the limit theorems of plasticity. The most important qualities for every method is mentioned and explained. Thereafter the finite element method has been scrutinized, in difference to the earlier mentioned method this is based on the theory of elasticity. There is now days several different softwares out on the market that can be used for analyze and design of building elements. Therefore some of the most common softwares on the Swedish market has been introduced and compared to each other in this work. One of these program is later used in the comparison calculations. The comparison of the calculation results are based on calculations of a number of plates. All plates have been calculated with both FEM-Design (which is a finite element method program) and WIN-Statik (which is based on the classical methods), both are Strusoft products. In FEM-Design the module plate has been used, and the calculations have been designed to form a course material for the software. In WIN-Statik the modules “Metodanvisningar” and “Pelardäck” has been used. When the comparison is completed it is obvious that there is a difference in both the amount of required reinforcement and the location of the required reinforcement. The explanation to this fact was to be found in the initial theory investigation. Finally it can be said that FEM-Design Plate is a powerful tool in analyze and design of concrete slabs. Both the definition and the calculation are done in a short period of time, after just hours of training. The program certainly is a help in analyze and design of complex concrete slabs. Of course it works even for less complex structures, but then the user has to be aware of how the use of the program impacts on the amount of reinforcement in the finally result.

Place, publisher, year, edition, pages
Keyword [en]
Keyword [sv]
URN: urn:nbn:se:ltu:diva-52632Local ID: 9beccab8-ba08-47ec-a635-93ba08394e69OAI: diva2:1026003
Subject / course
Student thesis, at least 30 credits
Educational program
Civil Engineering, master's level
Validerat; 20110412 (anonymous)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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