Graduation Theses

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Submit Graduation Thesis

Did you use the Dlubal Software programs for your bachelor, master or diploma thesis, dissertation or any other scientific project and would like to publish it on our website?

Then you can submit it here:

Please make sure to not infringe any rights of publication and have the approval of your school or your advisor.

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If you publish your graduation thesis on our website, you can ask for a free full version license of RFEM or RSTAB including add-on modules for the first half of the year after finishing your studies or your scientific paper.

Knowledge Base

Knowledge Base

On the ‘Knowledge Base’ page, you can find many technical articles and tips & tricks that may help you to solve your structural engineering tasks using Dlubal Software.

Design and Analysis of Membrane Structures in FEM-Based Software

20 October 2017

Master Theses

by Rostislav Lang, Germany

Anhalt University of Applied Sciences, Department of Architecture, Facility Management and Geoinformation
Tutors: Prof. Dr.‑Ing. Robert Off, Prof. Dr.‑Ing. Kai‑Uwe Bletzinger
Programs Used: RFEM, RF‑FORM‑FINDING, RF‑CUTTING‑PATTERN

Membrane structures are one of the current trends in civil engineering and architecture. Their shapes cannot be chosen freely since they must be physically suitable because the material used for tensile structures can withstand no bending or compression, and thus shapes under tension have to be used. This is the first task – known as form‑finding – to solve when designing membrane structures, involving both the architectural requirements and physical principles.

After the form‑finding is performed, it is necessary to check the load‑bearing capacity and other code-specific or investor's requirements in structural analysis. The structural response of such structures is strongly nonlinear in terms of both the impact of geometry changes and material behaviour.

If all the requirements are fulfilled, the structure can be fabricated. To make this step possible, it is necessary to generate cutting patterns as membrane structures exhibit double curvature and therefore, they have to be approximated by a certain amount of planar patterns.

The work focuses on all those steps. A theoretical introduction will be presented in the first part of each chapter, then practical examples will be shown to demonstrate the mentioned statements.

Comparison of Various Design Methods for Stability of Structural Components in Steel Structures According to DIN EN 1993-1-1 with Regard to Cost-Effectiveness on Example of Trough Structure Design

31 August 2017

Master Theses

by Johannes Rybakowski, Germany

Leipzig University of Applied Sciences, Faculty of Civil Engineering
Advisor: Prof. Dr.-Ing. Kerstin Hebestreit
Programs Used: RFEM, RF‑DYNAM Pro, RF‑IMP, RF‑STABILITY, RF‑STEEL Members

DIN EN 1993‑1‑1 provides various design methods for standard stability analysis of steel structures, taking into account stability problems. The subject of this master thesis is a comparative study of these design options with regard to the calculation effort and the cost-effectiveness, using an example of a trough structure as a truss structure.

Based on a presumption of principal possibilities to perform stability analyses according to DIN EN 1993‑1‑1, these were applied to the design of the upper chord of a representative single-span railway bridge constructed as a trough without the upper horizontal bracing. In addition to the actual and preliminary design of the essential structural components of the bridge superstructure, this study focuses primarily on the stability analysis of the upper truss chord. The stability of this upper chord was analysed on the entire spatial model as well as on the related structural models.

Structural Design and Analysis of Steel Footbridge

19 July 2017

Bachelor Theses

by Alejandro Cases Hernández, Spain

University of Zaragoza, Engineering and Architecture College
Advisor: Luis Gracia Villa
Programs Used: RFEM 5, RF‑STEEL Members, RF‑DYNAM Pro, RF‑STABILITY

In the footbridge design the following structural components have been defined:

  1. Main beams
  2. Cross beams
  3. Main archs
  4. Secondary archs
  5. Hangers
  6. Bridge railing

Analysis of CLT Surfaces as Walls and Floors and FE Modelling

20 June 2017

Diploma Theses

by Antonin Poirier, France

Institut national des sciences appliquées de Rennes
Advisor: Thierry Le Gac
Programs Used: RFEM, RF-LAMINATE, RF-DYNAM Pro

This study is the result of over 5 months of work on the subject of construction with CLT (Cross‑Laminated Timber) surfaces and their modelling in a finite element analysis program.

Stability Optimization of Steel Frame Structure for Modular Units

27 June 2016

Master Theses

by Olivier Vanrijkel and Sam Gielkens, Netherlands

University of Hasselt (Belgium), Department of Industrial Engineering
Advisors: Prof. Hervé Degée (UHasselt), Ing. Mark Brouwers (Warsco), Ing. Jo Gijbels (Whitebox)
Programs Used: RFEM, RF-STEEL, RF-STEEL EC3, SHAPE-THIN

CBZ located at Zutendaal, part of Warsco Units, is a construction company that produces modular units. The purpose of this master's thesis is to dimension and optimise the steel frame of such units according to a new concept.

The units are manufactured to extreme measures which apply exceptional transport. The financial cost that this entails limited Warsco Units to participate in the international market. By making the units disassembled it yet can offer a solution. For this, CBZ chooses its own production of cold‑formed thin‑walled sections and the welded joints are replaced by bolts.

To produce the units according to the new concept, the profiles should be calculated based on the European standard EN 1993‑1‑3. For the calculations in this master's thesis, the finite element software RFEM is chosen. As a result, a unit that meets all the standards and requirements is obtained.

Advanced Simulation of the 3D Membrane Structure

17 June 2016

Master Theses

by Svitlana Kalmykova, Czech Republic

CTU in Prague, Department of Steel and Timber Structures
Advisor: Ing. Michal Netušil, Ph.D.
Programs Used: RFEM, RF-STEEL EC3

Master thesis deals with two types of membrane structures: a hyperbolic paraboloid with and without substructures, and Kunštát roofing system with a shape based on hyperbolic curve, with supporting structures.

The author compares different software which were developed for design of geometrically nonlinear structures. On the basis of comparative analysis of stresses and deflections for the simple post-tensioned textile membrane structure, RFEM has been chosen as the best software for adequate numerical modelling of advanced structures' structural behaviour.

In the end, the full design model for Kunštát roofing with textile membrane was performed in RFEM through uninterrupted procedure ‘initial geometry – shape after form‑finding – loads on a new shape – results – member design in post‑processors’.

Programming of Grasshopper-Plug-Ins for Data Exchange Between RSTAB and Grasshopper

16 June 2016

Bachelor Theses

by Soenke Kientopf, Germany

HafenCity University Hamburg (HCU), Institute of Facade Systems and Building Envelopes
Advisors: Prof. Dr.‑Ing. Frank Wellershoff, Dipl.‑Ing. Arch. Roman Baudisch
Programs Used: RSTAB, RS-COM

The aim of this project was to develop a tool for the Grasshopper plugin Rhinoceros (Rhino), which sends data to RSTAB via the RS‑COM interface.

This tool allows for transferring nodes, lines, materials, cross‑sections, supports, and loads defined in Rhino or Grasshopper into RSTAB which performs the calculation. The results are then exported via the RS-COM interface, the deformed structure and force distributions are displayed in Rhino, and the ultimate limit state timber design is performed to display loads of the designed structure.

Within the scope of this bachelor thesis, the fundamental feasibility of the data transfer using RS‑COM was successfully examined and thus a basis for further development was created.

Design and Calculation of Timber Connections Indirectly Connected with Sliced Steel Plates and Steel Dowels

8 March 2016

Seminar Papers

by Bastian Kuhn, Germany

Leibniz University Hannover, Institute of Building Physics
Supervisor: Dipl.‑Ing. Sandra Tilleke, Examiner: Prof. Dr.‑Ing. N.A. Fouad
Programs Used: RFEM, RF-TIMBER Pro

In this seminar paper, the effects of considering stiffness and eccentricity of an indirect connection of timber cross‑sections are analysed.

Application Boundaries of Beam Structure Models When Calculating Oblique-Angled Frame Structures in Bridge Construction

24 February 2016

Bachelor Theses

by Simon Tabarelli, Germany

Mainz University of Applied Science, Department of Engineering
Supervisor: Prof. Dr.-Ing. Michael Küchler
Co-examiner: Prof. Dr.-Ing. Andreas Garg
Programs Used: RFEM, RSTAB

This bachelor thesis deals with the determination of internal forces of oblique‑angled frame structures in bridge construction. It is investigated to what extent the internal forces of a frame bridge with variable crossing angles can be designed using the calculation of planar beam structure models.

The aim is to determine the crossing angle up to which the simplified calculation provides sufficiently accurate results and when a more complex finite element analysis is necessary.

Structural and Constructional Design of Prestressed Concrete Bridge with Double-Girdered T-beam Cross-Section According to Eurocode 2

5 March 2015

Diploma Theses

by Jing Lu, Germany

Technical University of Kaiserslautern
Advisor: Dipl.‑Ing. Christian Keil, Dipl.‑Ing.Sebastian Oster
Programs Used: RFEM, add-on modules

The building is a two‑bay road bridge with the maximum width of 25.75 m and 28.80 m. The superstructure is made of the prestressed concrete component with a double‑girdered T‑beam section. In the longitudinal direction of the bridge, the superstructure is internally prestressed with bonded tendons.

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Diploma Thesis with Dlubal Software

“I would like to thank Dlubal Software once more for the advice and help as well as for providing the software. I really enjoyed working with the program and, of course, I have learned a lot. I successfully completed and defended my diploma thesis.”